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1

Category:Tracer Testing | Open Energy Information  

Open Energy Info (EERE)

Tracer Testing page? For detailed information on Tracer Testing, click here. Category:Tracer Testing Add.png Add a new Tracer Testing Technique Pages in category "Tracer Testing"...

2

Tracer Testing | Open Energy Information  

Open Energy Info (EERE)

Tracer Testing Tracer Testing Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Tracer Testing Details Activities (9) Areas (5) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: Well Testing Techniques Parent Exploration Technique: Well Testing Techniques Information Provided by Technique Lithology: Stratigraphic/Structural: Fracture zones and formation permeability Hydrological: Flow rates, flow direction, hydrologic connections, storativity Thermal: Dictionary.png Tracer Testing: A method based on injecting chemical tracers into the reservoir and monitoring how long it takes and where those tracers travel. The purpose is to model subsurface hydrothermal flow characteristics.

3

Tracer Testing At Coso Geothermal Area (1993) | Open Energy Information  

Open Energy Info (EERE)

Tracer Testing At Coso Geothermal Area (1993) Tracer Testing At Coso Geothermal Area (1993) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Tracer Testing At Coso Geothermal Area (1993) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Tracer Testing Activity Date 1993 Usefulness useful DOE-funding Unknown Exploration Basis To determine the steam and water mass flow rate Notes The method involves precisely metered injection of liquid and vapor phase tracers into the two-phase production pipeline and concurrent sampling of each phase downstream of the injection point. Subsequent chemical analysis of the steam and water samples for tracer content enables the calculation of mass flowrate for each phase given the known mass injection rates of

4

A Tracer Test Using Ethanol as a Two-Phase Tracer and 2-Naphthalene  

Open Energy Info (EERE)

Tracer Test Using Ethanol as a Two-Phase Tracer and 2-Naphthalene Tracer Test Using Ethanol as a Two-Phase Tracer and 2-Naphthalene Sulfonate as a Liquid-Phase Tracer at the Coso Geothermal Field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: A Tracer Test Using Ethanol as a Two-Phase Tracer and 2-Naphthalene Sulfonate as a Liquid-Phase Tracer at the Coso Geothermal Field Details Activities (1) Areas (1) Regions (0) Abstract: A tracer test was conducted at the Coso geothermal field in order to characterize the flow patterns of fluid injected into well 68-20RD. A conservative liquid phase tracer, 2-naphthalene sulfonate, and a two-phase tracer, ethanol, were injected into well 68-20RD. Surrounding production wells were sampled over the subsequent 125 days and analyzed for the two tracers. The liquid-phase tracer showed negligible returns, whereas the

5

A Tracer Test Using Ethanol as a Two-Phase Tracer and 2-Naphthalene...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: A Tracer Test Using Ethanol as a Two-Phase Tracer and 2-Naphthalene Sulfonate as a Liquid-Phase...

6

Tracer Testing At Coso Geothermal Area (2006) | Open Energy Information  

Open Energy Info (EERE)

Tracer Testing At Coso Geothermal Area (2006) Tracer Testing At Coso Geothermal Area (2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Tracer Testing At Coso Geothermal Area (2006) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Tracer Testing Activity Date 2006 Usefulness useful DOE-funding Unknown Exploration Basis To characterize the flow patterns of fluid injected into well 68-20RD. Notes A conservative liquid phase tracer, 2-naphthalene sulfonate, and a two-phase tracer, ethanol, were injected into well 68-20RD. Surrounding production wells were sampled over the subsequent 125 days and analyzed for the two tracers. The results demonstrate the efficacy of the simultaneous use of liquid-phase and two-phase tracers in fluid-depleted geothermal

7

Preferred methods of analysis for chemical tracers in moderate- and  

Open Energy Info (EERE)

Preferred methods of analysis for chemical tracers in moderate- and Preferred methods of analysis for chemical tracers in moderate- and high-temperature geothermal environments Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Preferred methods of analysis for chemical tracers in moderate- and high-temperature geothermal environments Details Activities (2) Areas (2) Regions (0) Abstract: This report describes the sampling and analytical techniques used for tracer analysis in the Raft River and East Mesa field tests. The collection procedures and sample preservation techniques, analytical methods and possible sources of contamination or error are discussed in detail. Author(s): Kroneman, R. L.; Yorgason, K. R.; Moore, J. N. Published: DOE Information Bridge, 12/1/1984 Document Number: Unavailable DOI: 10.2172/5121460

8

Tracer Testing at Dixie Valley, Nevada, Using Pyrene Tetrasulfonate Amino  

Open Energy Info (EERE)

Tracer Testing at Dixie Valley, Nevada, Using Pyrene Tetrasulfonate Amino Tracer Testing at Dixie Valley, Nevada, Using Pyrene Tetrasulfonate Amino G, and Fluorescein Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Tracer Testing at Dixie Valley, Nevada, Using Pyrene Tetrasulfonate Amino G, and Fluorescein Abstract A series of four tracer tests was recently conducted at the Dixie Valley, Nevada, geothermal reservoir in order to determine fluid-flow processes and to evaluate candidate tracers for use in hydrothermal systems. These tests have resulted in the first successful use of the compounds amino G and pyrenetetrasulfonate as tracers in a geothermal reservoir. The tracer candidates were subjected to simulated hydrothermal conditions in laboratory reactors at temperatures as high as 300°C in order to determine

9

Hydrogeology of the Blautopf spring - Tracer tests in Blauhohle cave |  

Open Energy Info (EERE)

Hydrogeology of the Blautopf spring - Tracer tests in Blauhohle cave Hydrogeology of the Blautopf spring - Tracer tests in Blauhohle cave Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Hydrogeology of the Blautopf spring - Tracer tests in Blauhohle cave Author Andreas Kucha Published Publisher Not Provided, 2012 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Hydrogeology of the Blautopf spring - Tracer tests in Blauhohle cave Citation Andreas Kucha. Hydrogeology of the Blautopf spring - Tracer tests in Blauhohle cave [Internet]. 2012. [cited 2013/10/17]. Available from: http://www.agw.kit.edu/english/blauhoele_cave.php Retrieved from "http://en.openei.org/w/index.php?title=Hydrogeology_of_the_Blautopf_spring_-_Tracer_tests_in_Blauhohle_cave&oldid=688895"

10

HYDROGEL TRACER BEADS: THE DEVELOPMENT, MODIFICATION, AND TESTING OF AN INNOVATIVE TRACER FOR BETTER UNDERSTANDING LNAPL TRANSPORT IN KARST AQUIFERS  

SciTech Connect

The goal of this specific research task is to develop proxy tracers that mimic contaminant movement to better understand and predict contaminant fate and transport in karst aquifers. Hydrogel tracer beads are transported as a separate phase than water and can used as a proxy tracer to mimic the transport of non-aqueous phase liquids (NAPL). They can be constructed with different densities, sizes & chemical attributes. This poster describes the creation and optimization of the beads and the field testing of buoyant beads, including sampling, tracer analysis, and quantitative analysis. The buoyant beads are transported ahead of the dissolved solutes, suggesting that light NAPL (LNAPL) transport in karst may occur faster than predicted from traditional tracing techniques. The hydrogel beads were successful in illustrating this enhanced transport.

Amanda Laskoskie, Harry M. Edenborn, and Dorothy J. Vesper

2012-01-01T23:59:59.000Z

11

Tracer Testing At East Mesa Geothermal Area (1984) | Open Energy...  

Open Energy Info (EERE)

to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Tracer Testing At East Mesa Geothermal Area (1984) Exploration Activity Details Location East Mesa...

12

Tracer Testing at Dixie Valley, Nevada, Using Pyrene Tetrasulfonate...  

Open Energy Info (EERE)

to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Tracer Testing at Dixie Valley, Nevada, Using Pyrene Tetrasulfonate Amino G, and Fluorescein...

13

Tracer Testing At Fenton Hill HDR Geothermal Area (Callahan,...  

Open Energy Info (EERE)

to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Tracer Testing At Fenton Hill HDR Geothermal Area (Callahan, 1996) Exploration Activity Details...

14

Tracer Testing At Dixie Valley Geothermal Area (Reed, 2007) ...  

Open Energy Info (EERE)

Nevada, Using Pyrene Tetrasulfonate Amino G, and Fluorescein Peter E. Rose, Stuart D. Johnson, Phaedra Kilbourn (2001) Tracer Testing at Dixie Valley, Nevada, Using 2-Naphthalene...

15

Tracer Testing At East Mesa Geothermal Area (1983) | Open Energy  

Open Energy Info (EERE)

Tracer Testing At East Mesa Geothermal Area (1983) Tracer Testing At East Mesa Geothermal Area (1983) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Tracer Testing At East Mesa Geothermal Area (1983) Exploration Activity Details Location East Mesa Geothermal Area Exploration Technique Tracer Testing Activity Date 1983 Usefulness not indicated DOE-funding Unknown Notes Two field experiments were conducted to develop chemical tracer procedures for use with injection-backflow testing, one on the fracture-permeability Raft River reservoir and the other on the matrix-permeability East Mesa reservoir. Results from tests conducted with incremental increases in the injection volume at both East Mesa and Raft River suggests that, for both reservoirs, permeability remained uniform with increasing distance from the

16

Quantitative interpretation of tracer test data | Open Energy Information  

Open Energy Info (EERE)

Quantitative interpretation of tracer test data Quantitative interpretation of tracer test data Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Quantitative interpretation of tracer test data Abstract Geothermal reinjection is an important part of sustainable management of geothermal resources. Reinjection started out as a method of waste-water disposal, but is now also being used to counteract pressure draw-down and to extract more thermal energy from reservoir rocks. The possible cooling of production wells, or thermal breakthrough, is one of the main disadvantages associated with injection. To minimize this danger while maintaining the benefit from reinjection requires careful testing and research. Tracer testing, which is used to study flow-paths and quantify fluid-flow in hydrological systems, is probably the most important tool for

17

Tracer Testing At Raft River Geothermal Area (1984) | Open Energy...  

Open Energy Info (EERE)

84 Usefulness not indicated DOE-funding Unknown Notes Tracer testing was undertaken at Raft River geothermal area. References Kroneman, R. L.; Yorgason, K. R.; Moore, J. N. (1...

18

Tracer Testing At Raft River Geothermal Area (1983) | Open Energy  

Open Energy Info (EERE)

3) 3) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Tracer Testing Activity Date 1983 Usefulness not indicated DOE-funding Unknown Exploration Basis To develop chemical tracing procedures for geothermal areas. Notes Two field experiments were conducted to develop chemical tracer procedures for use with injection-backflow testing, one on the fracture-permeability Raft River reservoir and the other on the matrix-permeability East Mesa reservoir. Results from tests conducted with incremental increases in the injection volume at both East Mesa and Raft River suggests that, for both reservoirs, permeability remained uniform with increasing distance from the well bore. Increased mixing during quiescent periods, between injection and

19

Calibration of hydraulic and tracer tests in fractured media  

E-Print Network (OSTI)

Calibration of hydraulic and tracer tests in fractured media represented by a DFN Model L. D. Donado, X. Sanchez-Vila, E. Ruiz* & F. J. Elorza** * Enviros Spain S.L. ** UPM #12;Fractured Media Water flows through fractures (matrix basically impervious ­ though relevant to transport) Fractures at all

Politècnica de Catalunya, Universitat

20

Evidence of Multi-Process Matrix Diffusion in a Single Fracturefrom a Field Tracer Test  

SciTech Connect

Compared to values inferred from laboratory tests on matrix cores, many field tracer tests in fractured rock have shown enhanced matrix diffusion coefficient values (obtained using a single-process matrix-diffusion model with a homogeneous matrix diffusion coefficient). To investigate this phenomenon, a conceptual model of multi-process matrix diffusion in a single-fracture system was developed. In this model, three matrix diffusion processes of different diffusion rates were assumed to coexist: (1) diffusion into stagnant water and infilling materials within fractures, (2) diffusion into a degraded matrix zone, and (3) further diffusion into an intact matrix zone. The validity of the conceptual model was then demonstrated by analyzing a unique tracer test conducted using a long-time constant-concentration injection. The tracer-test analysis was conducted using a numerical model capable of tracking the multiple matrix-diffusion processes. The analysis showed that in the degraded zone, a diffusion process with an enhanced diffusion rate controlled the steep rising limb and decay-like falling limb in the observed breakthrough curve, whereas in the intact matrix zone, a process involving a lower diffusion rate affected the long-term middle platform of slowly increasing tracer concentration. The different matrix-diffusion-coefficient values revealed from the field tracer test are consistent with the variability of matrix diffusion coefficient measured for rock cores with different degrees of fracture coating at the same site. By comparing to the matrix diffusion coefficient calibrated using single-process matrix diffusion, we demonstrated that this multi-process matrix diffusion may contribute to the enhanced matrix-diffusion-coefficient values for single-fracture systems at the field scale.

Zhou, Quanlin; Liu, Hui-Hai; Bodvarsson, Gudmundur; Molz, Fred J.

2005-06-11T23:59:59.000Z

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

ANALYSIS OF TRACER AND THERMAL TRANSIENTS DURING REINJECTION  

E-Print Network (OSTI)

and developed a new technique which combines the results from in- terwell tracer tests and thermal injection variables of the injection and backflow periods. Finally we suggested thermal injection-backflow tests for interpreting thermal injection-backflow tests. In fact, the MD model was first developed by Lauwerier to study

Stanford University

22

Using Seismic Reflection to Locate a Tracer Testing Complex South of Yucca Mountain, Nye County, Nevada.  

E-Print Network (OSTI)

??Tracer testing in the fractured volcanic aquifer near Yucca Mountain, and in the alluvial aquifer south of Yucca Mountain, Nevada has been conducted in the (more)

Kryder, Levi

2014-01-01T23:59:59.000Z

23

Tracer Testing At Neal Hot Springs Geothermal Area (U.S. Geothermal...  

Open Energy Info (EERE)

to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Tracer Testing At Neal Hot Springs Geothermal Area (U.S. Geothermal Inc., 2012) Exploration Activity...

24

Tracer Testing At Coso Geothermal Area (2004) | Open Energy Information  

Open Energy Info (EERE)

Coso Geothermal Area (2004) Coso Geothermal Area (2004) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Tracer Testing Activity Date 2004 Usefulness not indicated DOE-funding Unknown Exploration Basis To determine the EGS potential of the Coso Geothermal Field Notes A dramatic decrease in the ratio of chloride to boron was observed in the liquid discharge of a well proposed for EGS development. The decrease appears to be related to the transformation of some feed zones in the well from liquid-dominated to vapor-dominated. High concentrations of boron are transported to the wellbore in the steam, where it fractionates to the liquid phase flowing in from liquid-dominated feed zones. The high-boron steam is created when the reservoir liquid in some of the feed zones boils

25

Determination of Water Saturation in Relatively Dry Porous Media Using Gas-phase Tracer Tests  

SciTech Connect

Soil desiccation (drying), involving water evaporation induced by dry air injection and extraction, is a potentially robust remediation process to slow migration of inorganic or radionuclide contaminants through the vadose zone. The application of gas-phase partitioning tracer tests has been proposed as a means to estimate initial water volumes and to monitor the progress of the desiccation process at pilot-test and field sites. In this paper, tracer tests have been conducted in porous medium columns with various water saturations using sulfur hexafluoride as the conservative tracer and tricholorofluoromethane and difluoromethane as the water-partitioning tracers. For porous media with minimal silt and/or organic matter fractions, tracer tests provided reasonable saturation estimates for saturations close to zero. However, for sediments with significant silt and/or organic matter fractions, tracer tests only provided satisfactory results when the water saturation was at least 0.1 - 0.2. For dryer conditions, the apparent tracer retardation increases due to air soil sorption, which is not included in traditional retardation coefficients derived from advection-dispersion equations accounting only for air water partitioning and water soil sorption. Based on these results, gas-phase partitioning tracer tests may be used to determine initial water volumes in sediments, provided the initial water saturations are sufficiently large. However, tracer tests are not suitable for quantifying moisture content in desiccated sediments.

Oostrom, Martinus; Tartakovsky, Guzel D.; Wietsma, Thomas W.; Truex, Michael J.; Dane, Jacob H.

2011-04-15T23:59:59.000Z

26

Tracer Testing at Dixie Valley, Nevada, Using 2-Naphthalene Sulfonate and  

Open Energy Info (EERE)

Tracer Testing at Dixie Valley, Nevada, Using 2-Naphthalene Sulfonate and Tracer Testing at Dixie Valley, Nevada, Using 2-Naphthalene Sulfonate and 2,7-Naphthalene Disulfonate Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Tracer Testing at Dixie Valley, Nevada, Using 2-Naphthalene Sulfonate and 2,7-Naphthalene Disulfonate Abstract The decay kinetics of the candidate tracers 2-naphthalene sulfonate and 2,7-naphthalenedisulfonate was studied under laboratory conditionsthat simulate a hydrothermal environment, withneither compound exhibiting any decay after oneweek at 330�C. These data indicate that thesecompounds are more thermally stable than any of thepreviously studied polyaromatic sulfonates. Both ofthe tracer candidates were successfully tested in afield study at the Dixie Valley, Nevada, geothermalreservoir. In addition to

27

Analysis of tracer responses in the BULLION Forced-Gradient Experiment at Pahute Mesa, Nevada  

SciTech Connect

This report presents an analysis of the tracer data from the BULLION forced-gradient experiment (FGE) conducted on Pahute Mesa at the Nevada Test Site from June 2, 1997 through August 28, 1997, for the Underground Test Area (UGTA) Program. It also serves to document the polystyrene microsphere data from the FGE. The FGE involved the injection of solute and colloid tracers into wells ER-20-6 No. 1 and ER-20-6 No. 2 while ER-20-6 No. 3 was pumped at approximately 116 gallons per minute (gpm). The experimental configuration and test design are described briefly in this report; more details are provided elsewhere (IT, 1996, 1997, 1998). The tracer responses in the various wells yielded valuable information about transport processes such as longitudinal dispersion, matrix diffusion and colloid transport in the hydrogeologic system in the vicinity of the BULLION nuclear test cavity. Parameter values describing these processes are derived from the semi-analytical model interpretations presented in this report. A companion report (IT, 1998) presents more detailed numerical modeling interpretations of the solute tracer responses.

Paul W. Reimus; Marc J. Haga

1999-10-01T23:59:59.000Z

28

First Tracer Test After Circulation in Desert Peak 27-15  

DOE Data Explorer (OSTI)

Following the successful stimulation of Desert Peak target EGS well 27-15, a circulation test was initiated by injecting a conservative tracer (1,5-nds) in combination with a reactive tracer (7-amino-1,3-naphthalene disulfonate). The closest production well 74-21 was monitored over the subsequent several months.

Peter Rose

29

First Tracer Test After Circulation in Desert Peak 27-15  

SciTech Connect

Following the successful stimulation of Desert Peak target EGS well 27-15, a circulation test was initiated by injecting a conservative tracer (1,5-nds) in combination with a reactive tracer (7-amino-1,3-naphthalene disulfonate). The closest production well 74-21 was monitored over the subsequent several months.

Rose, Peter

2013-11-16T23:59:59.000Z

30

Simulation of single well tracer tests for surfactantpolymer flooding  

Science Journals Connector (OSTI)

A single well tracer test (SWTT) is a method to investigate the residual oil saturation near the wellbore. It presents an important tool to evaluate enhanced oil recovery (EOR) processes. For EOR evaluation, ...

Peter X. Bu; Abdulkareem M. AlSofi; Jim Liu

2014-10-01T23:59:59.000Z

31

Laboratory testing and modeling to evaluate perfluorocarbon compounds as tracers in geothermal systems  

SciTech Connect

The thermal stability and adsorption characteristics of three perfluorinated hydrocarbon compounds were evaluated under geothermal conditions to determine the potential to use these compounds as conservative or thermally-degrading tracers in Engineered (or Enhanced) Geothermal Systems (EGS). The three compounds tested were perfluorodimethyl-cyclobutane (PDCB), perfluoromethylcyclohexane (PMCH), and perfluorotrimethylcyclohexane (PTCH), which are collectively referred to as perfluorinated tracers, or PFTs. Two sets of duplicate tests were conducted in batch mode in gold-bag reactors, with one pair of reactors charged with a synthetic geothermal brine containing the PFTs and a second pair was charged with the brine-PFT mixture plus a mineral assemblage chosen to be representative of activated fractures in an EGS reservoir. A fifth reactor was charged with deionized water containing the three PFTs. The experiments were conducted at {approx}100 bar, with temperatures ranging from 230 C to 300 C. Semi-analytical and numerical modeling was also conducted to show how the PFTs could be used in conjunction with other tracers to interrogate surface area to volume ratios and temperature profiles in EGS reservoirs. Both single-well and cross-hole tracer tests are simulated to illustrate how different suites of tracers could be used to accomplish these objectives. The single-well tests are especially attractive for EGS applications because they allow the effectiveness of a stimulation to be evaluated without drilling a second well.

Reimus, Paul W [Los Alamos National Laboratory

2011-01-21T23:59:59.000Z

32

Interpretations of Tracer Tests Performed in the Culebra Dolomite at the Waste Isolation Pilot Plant Site  

SciTech Connect

This report provides (1) an overview of all tracer testing conducted in the Culebra Dolomite Member of the Rustler Formation at the Waste Isolation Pilot Plant (WPP) site, (2) a detailed description of the important information about the 1995-96 tracer tests and the current interpretations of the data, and (3) a summary of the knowledge gained to date through tracer testing in the Culebra. Tracer tests have been used to identify transport processes occurring within the Culebra and quantify relevant parameters for use in performance assessment of the WIPP. The data, especially those from the tests performed in 1995-96, provide valuable insight into transport processes within the Culebra. Interpretations of the tracer tests in combination with geologic information, hydraulic-test information, and laboratory studies have resulted in a greatly improved conceptual model of transport processes within the Culebra. At locations where the transmissivity of the Culebra is low (< 4 x 10{sup -6} m{sup 2}/s), we conceptualize the Culebra as a single-porosity medium in which advection occurs largely through the primary porosity of the dolomite matrix. At locations where the transmissivity of the Culebra is high (> 4 x 10{sup -6} m{sup 2}/s), we conceptualize the Culebra as a heterogeneous, layered, fractured medium in which advection occurs largely through fractures and solutes diffuse between fractures and matrix at multiple rates. The variations in diffusion rate can be attributed to both variations in fracture spacing (or the spacing of advective pathways) and matrix heterogeneity. Flow and transport appear to be concentrated in the lower Culebra. At all locations, diffusion is the dominant transport process in the portions of the matrix that tracer does not access by flow.

MEIGS,LUCY C.; BEAUHEIM,RICHARD L.; JONES,TOYA L.

2000-08-01T23:59:59.000Z

33

Predictions of tracer transport in interwell tracer tests at the C-Hole complex. Yucca Mountain site characterization project report milestone 4077  

SciTech Connect

This report presents predictions of tracer transport in interwell tracer tests that are to be conducted at the C-Hole complex at the Nevada Test Site on behalf of the Yucca Mountain Site Characterization Project. The predictions are used to make specific recommendations about the manner in which the tracer test should be conducted to best satisfy the needs of the Project. The objective of he tracer tests is to study flow and species transport under saturated conditions in the fractured tuffs near Yucca Mountain, Nevada, the site of a potential high-level nuclear waste repository. The potential repository will be located in the unsaturated zone within Yucca Mountain. The saturated zone beneath and around the mountain represents the final barrier to transport to the accessible environment that radionuclides will encounter if they breach the engineered barriers within the repository and the barriers to flow and transport provided by the unsaturated zone. Background information on the C-Holes is provided in Section 1.1, and the planned tracer testing program is discussed in Section 1.2.

Reimus, P.W.

1996-09-01T23:59:59.000Z

34

Interpretation of Colloid-Homologue Tracer Test 10-03, Including Comparisons to Test 10-01  

SciTech Connect

This presentation covers the interpretations of colloid-homologue tracer test 10-03 conducted at the Grimsel Test Site, Switzerland, in 2010. It also provides a comparison of the interpreted test results with those of tracer test 10-01, which was conducted in the same fracture flow system and using the same tracers than test 10-03, but at a higher extraction flow rate. A method of correcting for apparent uranine degradation in test 10-03 is presented. Conclusions are: (1) Uranine degradation occurred in test 10-03, but not in 10-01; (2) Uranine correction based on apparent degradation rate in injection loop in test 11-02 seems reasonable when applied to data from test 10-03; (3) Colloid breakthrough curves quite similar in the two tests with similar recoveries relative to uranine (after correction); and (4) Much slower apparent desorption of homologues in test 10-03 than in 10-01 (any effect of residual homologues from test 10-01 in test 10-03?).

Reimus, Paul W. [Los Alamos National Laboratory

2012-06-26T23:59:59.000Z

35

Preliminary Interpretation of a Radionuclide and Colloid Tracer Test in a Granodiorite Shear Zone at the Grimsel Test Site, Switzerland  

SciTech Connect

In February and March 2012, a tracer test involving the injection of a radionuclide-colloid cocktail was conducted in the MI shear zone at the Grimsel Test Site, Switzerland, as part of the Colloids Formation and Migration (CFM) project. The colloids were derived from FEBEX bentonite, which is mined in Spain and is being considered as a potential waste package backfill in a Spanish nuclear waste repository. The tracer test, designated test 12-02 (second test in 2012), involved the injection of the tracer cocktail into borehole CFM 06.002i2 and extraction from the Pinkel surface packer at the main access tunnel wall approximately 6.1 m from the injection interval. The test configuration is depicted in Figure 1. This configuration has been used in several conservative tracer tests and two colloid-homologue tracer tests since 2007, and it is will be employed in an upcoming test involving the emplacement of a radionuclide-doped bentonite plug into CFM 06.002i2 to evaluate the swelling and erosion of the bentonite and the transport of bentonite colloids and radionuclides from the source to the extraction point at the tunnel wall. Interpretive analyses of several of the previous tracer tests, from 09-01 through 12-02 were provided in two previous Used Fuel Disposition Program milestone reports (Arnold et al., 2011; Kersting et al., 2012). However, only the data for the conservative tracer Amino-G Acid was previously analyzed from test 12-02 because the other tracer data from this test were not available at the time. This report documents the first attempt to quantitatively analyze the radionuclide and colloid breakthrough curves from CFM test 12-02. This report was originally intended to also include an experimental assessment of colloid-facilitated transport of uranium by bentonite colloids in the Grimsel system, but this assessment was not conducted because it was reported by German collaborators at the Karlsruhe Institute of Technology (KIT) that neither uranium nor neptunium adsorbed appreciably to FEBEX bentonite colloids in Grimsel groundwater (Huber et al., 2011). The Grimsel groundwater has a relatively high pH of {approx}9, so the lack of uranium and neptunium adsorption to clay is not surprising given the tendency for these actinides to form very stable negative or neutrally-charged uranyl- or calcium-uranyl-carbonate complexes at these pH, particularly in a water that is effectively saturated with respect to calcite. It was also observed in testing conducted at LANL earlier in 2012 that uranium did not adsorb measurably to Grimsel granodiorite in a synthetic Grimsel groundwater at pH {approx}8.5 (Kersting et al., 2012). Thus, the planned experimental work was not pursued because all the available information clearly pointed to an expected result that uranium transport would not be facilitated by clay colloids in the Grimsel system.

Reimus, Paul W. [Los Alamos National Laboratory

2012-08-30T23:59:59.000Z

36

A new statistical dispersion model for tracer tests and contaminant spread in porous media  

SciTech Connect

Dispersion of solutes moving in permeable media is an essential control to describe fluid flow in permeable media. Dispersion can be thought of as a spreading of a solute caused by the presence of microscopic inhomogeneities. An accurate model for dispersion is needed for accurate estimation of oil recovery efficiencies and clean up costs of subsurface contaminants. Current approaches utilizing the fickian assumption fall short in describing the real physics of spreading during a solute transport process. Numerous field investigations have shown that dispersivities measured in the field are much larger than those measured in the lab for the same type of porous material. Moreover, field measured dispersivities have been shown to be scale dependent, that is, a tracer test conducted over a longer travel path will yield a larger dispersivity value than a tracer test conducted in the same geologic formation over a shorter travel path. Numerous approaches to address this problem have been developed yet none attempted to go beyond the Fickian dispersion assumption. In this study, a convective dispersivity is introduced. New model assumes that dispersion is dimensionless and mainly determined by pore size distribution. The new model results in a spread that increases linearly with time contrary to conventional model, which predicts a mixing zone length that increases with square root of time. Therefore, new model explains the field test results that indicate increasing dispersivity with distance. The model validations are in perfect agreement with experimental results, which include; Ganapathy et al.`s slug experiment on Antolini sandstone, Handy`s radioactive tracer experiment on Alhambra sandstone, and CT experiment conducted at BDM-OK/NIPER facilities on Tallant sandstone.

Ates, H.; Kasap, E. [Univ. of Tulsa, OK (United States)

1995-12-31T23:59:59.000Z

37

Stochastic inversion of tracer test and electrical geophysical data to estimate hydraulic conductivities  

E-Print Network (OSTI)

MonteCarlo (McMC) methodology to jointly invert the dynamic resistivity data, together with borehole tracer heterogeneity with respect to wellbore separation, where flow and transport are largely controlled by highly of drill cores and/or the results of tracer and pumping experiments; however, these techniques are often

Singha, Kamini

38

Monitoring of saline tracer movement with vertically distributed self-potential measurements at the HOBE agricultural test site, Voulund, Denmark  

E-Print Network (OSTI)

The self-potential (SP) method is sensitive to water fluxes in saturated and partially saturated porous media, such as those associated with rainwater infiltration and groundwater recharge. We present a field-based study at the Voulund agricultural test site, Denmark, that is, to the best of our knowledge, the first to focus on the vertical self-potential distribution prior to and during a saline tracer test. A coupled hydrogeophysical modeling framework is used to simulate the SP response to precipitation and saline tracer infiltration. A layered hydrological model is first obtained by inverting dielectric and matric potential data. The resulting model that compares favorably with electrical resistance tomography models is subsequently used to predict the SP response. The electrokinetic contribution (caused by water fluxes in a charged porous soil) is modeled by an effective excess charge approach that considers both water saturation and pore water salinity. Our results suggest that the effective excess char...

Jougnot, Damien; Haarder, Eline B; Looms, Majken C

2015-01-01T23:59:59.000Z

39

Thermal single-well injection-withdrawal tracer tests for determining fracture-matrix heat transfer area  

SciTech Connect

Single-well injection-withdrawal (SWIW) tracer tests involve injection of traced fluid and subsequent tracer recovery from the same well, usually with some quiescent time between the injection and withdrawal periods. SWIW are insensitive to variations in advective processes that arise from formation heterogeneities, because upon withdrawal, fluid parcels tend to retrace the paths taken during injection. However, SWIW are sensitive to diffusive processes, such as diffusive exchange of conservative or reactive solutes between fractures and rock matrix. This paper focuses on SWIW tests in which temperature itself is used as a tracer. Numerical simulations demonstrate the sensitivity of temperature returns to fracture-matrix interaction. We consider thermal SWIW response to the two primary reservoir improvements targeted with stimulation, (1) making additional fractures accessible to injected fluids, and (2) increasing the aperture and permeability of pre-existing fractures. It is found that temperature returns in SWIW tests are insensitive to (2), while providing a strong signal of more rapid temperature recovery during the withdrawal phase for (1).

Pruess, K.; Doughty, C.

2010-01-15T23:59:59.000Z

40

Dynamic Reservoir Characterization Of Naturally Fractured Reservoirs From An Inter-Well Tracer Test  

E-Print Network (OSTI)

-spot pattern and breakthrough time of the injected tracer. Once the model became capable of matching historical field production, a 1-year prediction run was conducted for optimization. Cumulative oil production was increased by 8,000 bbl by allocating more...

Kilicaslan, Ufuk

2013-12-03T23:59:59.000Z

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Analysis Driven Field Testing  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

ANALYSIS DRIVEN FIELD TESTING ANALYSIS DRIVEN FIELD TESTING Greg Barker, MEP Paul Norton, NERD C.E. Hancock, MEP Building America Residential Energy Efficiency Stakeholder Meeting Austin, TX March 2, 2012 MODELING DRIVEN FIELD TESTING Greg Barker, MEP Paul Norton, NERD C.E. Hancock, MEP Building America Residential Energy Efficiency Stakeholder Meeting Austin, TX March 2, 2012 MODELING DRIVEN MEASUREMENTS Greg Barker, MEP Paul Norton, NERD C.E. Hancock, MEP Building America Residential Energy Efficiency Stakeholder Meeting Austin, TX March 2, 2012 Building America Residential Energy Efficiency Stakeholder Meeting Austin, TX March 2, 2012 "Modeling without measuring lacks credibility. Measuring without modeling lacks generality." Ed Hancock

42

Advancing Reactive Tracer Methods for Measuring Thermal Evolution in CO2-  

Open Energy Info (EERE)

Advancing Reactive Tracer Methods for Measuring Thermal Evolution in CO2- Advancing Reactive Tracer Methods for Measuring Thermal Evolution in CO2- and Water-Based Geothermal Reservoirs Geothermal Lab Call Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Advancing Reactive Tracer Methods for Measuring Thermal Evolution in CO2- and Water-Based Geothermal Reservoirs Project Type / Topic 1 Laboratory Call for Submission of Applications for Research, Development and Analysis of Geothermal Technologies Project Type / Topic 2 Tracers and Tracer Interpretation Project Description The concepts and theory behind the use of heat-sensitive tracers to study the thermal evolution of geothermal reservoirs was developed in the late 1980's under the Hot Dry Rock Project. Those studies described-conceptually and mathematically-the application of reactive tracers to tracking thermal fronts and to reservoir sizing. Later mathematical treatments focused on application of a single reactive tracer test to recover the temperature profile of a single streamtube. Previous tracer work has mainly focused on identifying conservative tracers. In these studies, chemicals that degraded at reservoir temperatures were discarded. Benzoic acids and dicarboxylic acids, which were found by Adams to degrade, may be useful as reactive tracers. Organic esters and amide tracers that undergo hydrolysis have been investigated and their use as reactive tracers appears feasible over a temperature range of 100ºC to 275ºC. However their reaction rates are pH dependent and sorption reactions have not been evaluated. While reactive tracer parameters have been measured in the lab, reactive tracers have not been extensively tested in the field. Thus, while reactive tracers appear to be a promising means of monitoring the thermal evolution of a geothermal reservoir, the concept has yet to be tested at the scale necessary for successful implementation, and tools for analyzing results of such tracer tests under the non-ideal conditions of an actual geothermal system have yet to be developed.

43

Geologic flow characterization using tracer techniques  

SciTech Connect

A new tracer flow-test system has been developed for in situ characterization of geologic formations. This report describes two sets of test equipment: one portable and one for testing in deep formations. Equations are derived for in situ detector calibration, raw data reduction, and flow logging. Data analysis techniques are presented for computing porosity and permeability in unconfined isotropic media, and porosity, permeability and fracture characteristics in media with confined or unconfined two-dimensional flow. The effects of tracer pulse spreading due to divergence, dispersion, and porous formations are also included.

Klett, R. D.; Tyner, C. E.; Hertel, Jr., E. S.

1981-04-01T23:59:59.000Z

44

Tracers and Tracer Interpretation | Open Energy Information  

Open Energy Info (EERE)

Tracers and Tracer Interpretation Tracers and Tracer Interpretation Jump to: navigation, search Contents 1 Geothermal Lab Call Projects for Tracers and Tracer Interpretation 2 Geothermal ARRA Funded Projects for Tracers and Tracer Interpretation Geothermal Lab Call Projects for Tracers and Tracer Interpretation Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":200,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026

45

Saline tracer visualized with three-dimensional electrical resistivity tomography: Field-scale spatial moment analysis  

E-Print Network (OSTI)

Saline tracer visualized with three-dimensional electrical resistivity tomography: Field; accepted 14 February 2005; published 24 May 2005. [1] Cross-well electrical resistivity tomography (ERT., and S. M. Gorelick (2005), Saline tracer visualized with three-dimensional electrical resistivity

Singha, Kamini

46

Reservoir characterization based on tracer response and rank analysis of production and injection rates  

SciTech Connect

Quantification of the spatial distribution of properties is important for many reservoir-engineering applications. But, before applying any reservoir-characterization technique, the type of problem to be tackled and the information available should be analyzed. This is important because difficulties arise in reservoirs where production records are the only information for analysis. This paper presents the results of a practical technique to determine preferential flow trends in a reservoir. The technique is a combination of reservoir geology, tracer data, and Spearman rank correlation coefficient analysis. The Spearman analysis, in particular, will prove to be important because it appears to be insightful and uses injection/production data that are prevalent in circumstances where other data are nonexistent. The technique is applied to the North Buck Draw field, Campbell County, Wyoming. This work provides guidelines to assess information about reservoir continuity in interwell regions from widely available measurements of production and injection rates at existing wells. The information gained from the application of this technique can contribute to both the daily reservoir management and the future design, control, and interpretation of subsequent projects in the reservoir, without the need for additional data.

Refunjol, B.T. [Lagoven, S.A., Pdvsa (Venezuela); Lake, L.W. [Univ. of Texas, Austin, TX (United States)

1997-08-01T23:59:59.000Z

47

Validation of Geothermal Tracer Methods in Highly Constrained...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

of Research Hypothesis: Smart tracers can measure potential heat exchange between fracture and rock mass Hypothesis Test: A tracer test proving ground System must be simple...

48

A comprehensive study of the analysis and economic benefits of radioactive tracer engineered simulation procedures  

SciTech Connect

Hydraulic Fracturing is an important technology to enhance production from tight gas reservoirs. Several techniques have been utilized to attempt to evaluate the effectiveness of hydraulic fracturing treatments. One technique, radioactive tracers, is currently used on over 15 % of the stimulation treatments performed in the U.S. With proper materials, design, and execution, tracers can be used to locate the presence and concentration of proppant at the wellbore in order to evaluate vertical and radial proppant distribution. A comprehensive study of over 100 fracture treatments has been completed in which radioactive tracers were used along with production logs, stress logs, post-fracturing completion reports, and production history to analyze completion effectiveness in four different reservoirs. Additionally, an economic benefit model was constructed to evaluate the benefit/cost ratio of applying the technology.

Fisher, K.; Robinson, B.M.; Voneiff, G.W.

1995-12-31T23:59:59.000Z

49

Application of a NAPL partitioning interwell tracer test (PITT) to support DNAPL remediation at the Sandia National Laboratories/New Mexico chemical waste landfill  

SciTech Connect

Chlorinated solvents as dense non-aqueous phase liquid (DNAPL) are present at a large number of hazardous waste sites across the U.S. and world. DNAPL is difficult to detect in the subsurface, much less characterize to any degree of accuracy. Without proper site characterization, remedial decisions are often difficult to make and technically effective, cost-efficient remediations are even more difficult to obtain. A new non-aqueous phase liquid (NAPL) characterization technology that is superior to conventional technologies has been developed and applied at full-scale. This technology, referred to as the Partitioning Interwell Tracer Test (PITT), has been adopted from oil-field practices and tailored to environmental application in the vadose and saturated zones. A PITT has been applied for the first time at full-scale to characterize DNAPL in the vadose zone. The PITT was applied in December 1995 beneath two side-by-side organic disposal pits at Sandia National Laboratories/New Mexico (SNL/NM) RCRA Interim Status Chemical Waste Landfill (CWL), located in Albuquerque, New Mexico. DNAPL, consisting of a mixture of chlorinated solvents, aromatic hydrocarbons, and PCE oils, is known to exist in at least one of the two buried pits. The vadose zone PITT was conducted by injecting a slug of non-partitioning and NAPL-partitioning tracers into and through a zone of interest under a controlled forced gradient. The forced gradient was created by a balanced extraction of soil gas at a location 55 feet from the injector. The extracted gas stream was sampled over time to define tracer break-through curves. Soil gas sampling ports from multilevel monitoring installations were sampled to define break-through curves at specific locations and depths. Analytical instrumentation such as gas chromatographs and a photoacoustical analyzers operated autonomously, were used for tracer detection.

Studer, J.E. [INTERA Inc., Albuquerque, NM (United States); Mariner, P.; Jin, M. [INTERA Inc., Austin, TX (United States)] [and others

1996-05-01T23:59:59.000Z

50

Identification of small-scale low and high permeability layers using single well forced-gradient tracer tests: Fluorescent dye imaging and modelling at the laboratory-scale  

Science Journals Connector (OSTI)

Abstract Heterogeneity in aquifer permeability, which creates paths of varying mass flux and spatially complex contaminant plumes, can complicate the interpretation of contaminant fate and transport in groundwater. Identifying the location of high mass flux paths is critical for the reliable estimation of solute transport parameters and design of groundwater remediation schemes. Dipole flow tracer tests (DFTTs) and push-pull tests (PPTs) are single well forced-gradient tests which have been used at field-scale to estimate aquifer hydraulic and transport properties. In this study, the potential for \\{PPTs\\} and \\{DFTTs\\} to resolve the location of layered high- and low-permeability layers in granular porous media was investigated with a pseudo 2-D bench-scale aquifer model. Finite element fate and transport modelling was also undertaken to identify appropriate set-ups for in situ tests to determine the type, magnitude, location and extent of such layered permeability contrasts at the field-scale. The characteristics of flow patterns created during experiments were evaluated using fluorescent dye imaging and compared with the breakthrough behaviour of an inorganic conservative tracer. The experimental results show that tracer breakthrough during \\{PPTs\\} is not sensitive to minor permeability contrasts for conditions where there is no hydraulic gradient. In contrast, \\{DFTTs\\} are sensitive to the type and location of permeability contrasts in the host media and could potentially be used to establish the presence and location of high or low mass flux paths. Numerical modelling shows that the tracer peak breakthrough time and concentration in a DFTT is sensitive to the magnitude of the permeability contrast (defined as the permeability of the layer over the permeability of the bulk media) between values of 0.0120. \\{DFTTs\\} are shown to be more sensitive to deducing variations in the contrast, location and size of aquifer layered permeability contrasts when a shorter central packer is used. However, larger packer sizes are more likely to be practical for field-scale applications, with fewer tests required to characterise a given aquifer section. The sensitivity of \\{DFTTs\\} to identify layered permeability contrasts was not affected by test flow rate.

Gareth L. Barns; Steven F. Thornton; Ryan D. Wilson

2015-01-01T23:59:59.000Z

51

Predictions of PuO{sub 2} and tracer compound release from ISV melts  

SciTech Connect

Two field tests were conducted at the Idaho National Engineering Laboratory (INEL) to assess in situ vitrification (ISV) suitability for long-term stabilization of buried radioactive waste. Both tests contained rare-earth oxide tracers (DY{sub 2}O{sub 3}, Yb{sub 2}O{sub 3}, and Tb{sub 4}O{sub 7}) to simulate the presence of plutonium in the form of PuO{sub 2}. In the first test, Intermediate Field Test (IFT)-l, approximately 4-% release of tracer material occurred during soil melting and associated off-gassing, while essentially nil release was observed for the second experiment (IFT-2) for which off-gassing was much reduced. This report presents an evaluation of the IFT test data in terms of governing release processes. Prediction of tracer release during ISV melting centered on an assessment of three potential transport mechanisms, (a) tracer diffusion through stagnant pool, (b) tracer transport by convective currents, and (c) tracer carry-off by escaping gas bubbles. Analysis indicates that tracer release by escaping gas is the dominant release mechanism, which is consistent with video records of gas bubble escape from the ISV melt surface. Quantitative mass transport predictions were also made for the IFT-I test conditions, indicating similarity between the 4-% release data and calculational results at viscosities of {approx} poise and tracer diffusivities of {approx}10{sub {minus}6} CM{sup 2}/s. Since PuO{sub 2} has similar chemical and transport (diffusivity) properties as the rare-earth tracers used in the rare earth tracers used in the IFT experiments, release of PuO{sub 2} is predicted for similar off-gassing conditions. Reduced off-gassing during ISV would thus be expected to improve the overall retention of heavy-oxides within vitrified soil.

Cronenberg, A.W. [Engineering Science and Analysis, Albuquerque, NM (United States); Callow, R.A. [EG and G Idaho, Inc., Idaho Falls, ID (United States)

1992-04-01T23:59:59.000Z

52

Predictions of PuO sub 2 and tracer compound release from ISV melts  

SciTech Connect

Two field tests were conducted at the Idaho National Engineering Laboratory (INEL) to assess in situ vitrification (ISV) suitability for long-term stabilization of buried radioactive waste. Both tests contained rare-earth oxide tracers (DY{sub 2}O{sub 3}, Yb{sub 2}O{sub 3}, and Tb{sub 4}O{sub 7}) to simulate the presence of plutonium in the form of PuO{sub 2}. In the first test, Intermediate Field Test (IFT)-l, approximately 4-% release of tracer material occurred during soil melting and associated off-gassing, while essentially nil release was observed for the second experiment (IFT-2) for which off-gassing was much reduced. This report presents an evaluation of the IFT test data in terms of governing release processes. Prediction of tracer release during ISV melting centered on an assessment of three potential transport mechanisms, (a) tracer diffusion through stagnant pool, (b) tracer transport by convective currents, and (c) tracer carry-off by escaping gas bubbles. Analysis indicates that tracer release by escaping gas is the dominant release mechanism, which is consistent with video records of gas bubble escape from the ISV melt surface. Quantitative mass transport predictions were also made for the IFT-I test conditions, indicating similarity between the 4-% release data and calculational results at viscosities of {approx} poise and tracer diffusivities of {approx}10{sub {minus}6} CM{sup 2}/s. Since PuO{sub 2} has similar chemical and transport (diffusivity) properties as the rare-earth tracers used in the rare earth tracers used in the IFT experiments, release of PuO{sub 2} is predicted for similar off-gassing conditions. Reduced off-gassing during ISV would thus be expected to improve the overall retention of heavy-oxides within vitrified soil.

Cronenberg, A.W. (Engineering Science and Analysis, Albuquerque, NM (United States)); Callow, R.A. (EG and G Idaho, Inc., Idaho Falls, ID (United States))

1992-04-01T23:59:59.000Z

53

Comprehensive analysis of metabolic pathways through the combined use of multiple isotopic tracers  

E-Print Network (OSTI)

Metabolic Flux Analysis (MFA) has emerged as a tool of great significance for metabolic engineering and the analysis of human metabolic diseases. An important limitation of MFA, as carried out via stable isotope labeling ...

Antoniewicz, Maciek Robert

2006-01-01T23:59:59.000Z

54

Validation of Geothermal Tracer Methods in Highly Constrained Field Experiments  

Energy.gov (U.S. Department of Energy (DOE))

DOE Geothermal Peer Review 2010 - Project Summary. This project will test smartdiffusive tracers for measuring heat exchange.

55

Tracers and Exploration Technologies  

Energy.gov (U.S. Department of Energy (DOE))

Below are the project presentations and respective peer review results for Tracers and Exploration Technologies.

56

Vehicle Technologies Office: Modeling, Testing and Analysis  

NLE Websites -- All DOE Office Websites (Extended Search)

Modeling, Testing and Modeling, Testing and Analysis to someone by E-mail Share Vehicle Technologies Office: Modeling, Testing and Analysis on Facebook Tweet about Vehicle Technologies Office: Modeling, Testing and Analysis on Twitter Bookmark Vehicle Technologies Office: Modeling, Testing and Analysis on Google Bookmark Vehicle Technologies Office: Modeling, Testing and Analysis on Delicious Rank Vehicle Technologies Office: Modeling, Testing and Analysis on Digg Find More places to share Vehicle Technologies Office: Modeling, Testing and Analysis on AddThis.com... Goals Research & Development Testing and Analysis Workplace Charging Community and Fleet Readiness Workforce Development Plug-in Electric Vehicle Basics Modeling, Testing and Analysis The Vehicle Technologies Office's robust portfolio is supported by

57

Glass mixing theory and tracer study results from the SF-10 run  

SciTech Connect

A general, partial differential equation governing glass mixing in the Slurry Fed Ceramic Melter (SFCM) was derived and a solution obtained based upon certain simplifying assumptions. Tracer studies were then conducted in the SFCM during the SF-10 run to test the theory and characterize glass mixing in this melter. Analysis of the tracer data shows that glass mixing in the SFCM can be explained by use of a model of two, well-mixed tanks in series.

Bowman, B.W.; Routt, K.R.

1988-08-01T23:59:59.000Z

58

Symbolic Test Selection Based on Approximate Analysis  

E-Print Network (OSTI)

Symbolic Test Selection Based on Approximate Analysis Bertrand Jeannet, Thierry J´eron, Vlad Rusu}@irisa.fr Abstract. This paper addresses the problem of generating symbolic test cases for testing the conformance. The challenge we consider is the selection of test cases according to a test purpose, which is here a set

Paris-Sud XI, Université de

59

Utility of Bromide and Heat Tracers for Aquifer Characterization Affected by Highly Transient Flow Conditions  

SciTech Connect

A tracer test using both bromide and heat tracers conducted at the Integrated Field Research Challenge site in Hanford 300 Area (300A), Washington, provided an instrument for evaluating the utility of bromide and heat tracers for aquifer characterization. The bromide tracer data were critical to improving the calibration of the flow model complicated by the highly dynamic nature of the flow field. However, most bromide concentrations were obtained from fully screened observation wells, lacking depth-specific resolution for vertical characterization. On the other hand, depth-specific temperature data were relatively simple and inexpensive to acquire. However, temperature-driven fluid density effects influenced heat plume movement. Moreover, the temperature data contained noise caused by heating during fluid injection and sampling events. Using the hydraulic conductivity distribution obtained from the calibration of the bromide transport model, the temperature depth profiles and arrival times of temperature peaks simulated by the heat transport model were in reasonable agreement with observations. This suggested that heat can be used as a cost-effective proxy for solute tracers for calibration of the hydraulic conductivity distribution, especially in the vertical direction. However, a heat tracer test must be carefully designed and executed to minimize fluid density effects and sources of noise in temperature data. A sensitivity analysis also revealed that heat transport was most sensitive to hydraulic conductivity and porosity, less sensitive to thermal distribution factor, and least sensitive to thermal dispersion and heat conduction. This indicated that the hydraulic conductivity remains the primary calibration parameter for heat transport.

Ma, Rui; Zheng, Chunmiao; Zachara, John M.; Tonkin, Matthew J.

2012-08-29T23:59:59.000Z

60

Component evaluation testing and analysis algorithms.  

SciTech Connect

The Ground-Based Monitoring R&E Component Evaluation project performs testing on the hardware components that make up Seismic and Infrasound monitoring systems. The majority of the testing is focused on the Digital Waveform Recorder (DWR), Seismic Sensor, and Infrasound Sensor. In order to guarantee consistency, traceability, and visibility into the results of the testing process, it is necessary to document the test and analysis procedures that are in place. Other reports document the testing procedures that are in place (Kromer, 2007). This document serves to provide a comprehensive overview of the analysis and the algorithms that are applied to the Component Evaluation testing. A brief summary of each test is included to provide the context for the analysis that is to be performed.

Hart, Darren M.; Merchant, Bion John

2011-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Vehicle Technologies Office: Modeling, Testing and Analysis  

NLE Websites -- All DOE Office Websites (Extended Search)

Modeling, Testing and Analysis Modeling, Testing and Analysis The Vehicle Technologies Office's robust portfolio is supported by modeling, testing, and analysis. This work complements the research on batteries, power electronics, and materials, helping researchers integrate these components and ensure the whole vehicle meets consumer and commercial needs. Modeling allows researchers to build "virtual vehicles" that simulate fuel economy, emissions and performance of a potential vehicle. The Office has supported the development of several software-based analytic tools that researchers can use or license. Integration and Validation allows researchers to test physical component and subsystem prototypes as if they are in a real vehicle. Laboratory and Fleet Testing provides data on PEVs through both dynamometer and on-the-road testing. Researchers use the data to benchmark current vehicles, as well as validate the accuracy of software models.

62

The ATLAS DDM Tracer monitoring framework  

E-Print Network (OSTI)

The DDM Tracer Service is aimed to trace and monitor the atlas file operations on the Worldwide LHC Computing Grid. The volume of traces has increased significantly since the service started in 2009. Now there are about ~5 million trace messages every day and peaks of greater than 250Hz, with peak rates continuing to climb, which gives the current service structure a big challenge. Analysis of large datasets based on on-demand queries to the relational database management system (RDBMS), i.e. Oracle, can be problematic, and have a significant effect on the database's performance. Consequently, We have investigated some new high availability technologies like messaging infrastructure, specifically ActiveMQ, and key-value stores. The advantages of key value store technology are that they are distributed and have high scalability; also their write performances are usually much better than RDBMS, all of which are very useful for the Tracer service. Indexes and distributed counters have been also tested to improve...

ZANG, D; The ATLAS collaboration; BARISITS, M; LASSNIG, M; Andrew STEWART, G; MOLFETAS, A; BEERMANN, T

2012-01-01T23:59:59.000Z

63

A User's Guide To BRILLIANT! TEST SCORING AND ITEM ANALYSIS  

E-Print Network (OSTI)

A User's Guide To BRILLIANT! TEST SCORING AND ITEM ANALYSIS August, 2008 Program Brilliant!: Test ....................................................................................................2 Test Scoring Enhancements.............................................................................................................................................................2 Scoring different test forms

64

Analysis of Hydraulic Responses from the ER-6-1 Multiple-Well Aquifer Test, Yucca Flat FY 2004 Testing Program, Nevada Test Site, Nye County, Nevada, Rev. No.: 0  

SciTech Connect

This report documents the interpretation and analysis of the hydraulic data collected for the Fiscal Year (FY) 2004 Multiple-Well Aquifer Test-Tracer Test (MWAT-TT) conducted at the ER-6-1 Well Cluster in Yucca Flat Corrective Action Unit (CAU) 97, on the Nevada Test Site (NTS). The MWAT-TT was performed to investigate CAU-scale groundwater flow and transport processes related to the transport of radionuclides from sources on the NTS through the Lower Carbonate Aquifer (LCA) Hydrostratigraphic Unit (HSU). The ER-6-1 MWAT-TT was planned and executed by contractor participants for the Underground Test Area (UGTA) Project of the Environmental Restoration (ER) program of the U.S. Department of Energy (DOE), National Nuclear Security Administration Nevada Site Office (NNSA/NSO). Participants included Stoller-Navarro Joint Venture (SNJV), the Environmental Engineering Services Contractor; Bechtel Nevada (BN); the Desert Research Institute (DRI); Los Alamos National Laboratory; and the University of Nevada, Las Vegas-Harry Reid Center. The SNJV team consists of the S.M. Stoller Corporation, Navarro Research and Engineering, Battelle Memorial Institute, INTERA Inc., and Weston Solutions, Inc. The MWAT-TT was implemented according to the ''Underground Test Area Project, ER-6-1 Multi-Well Aquifer Test - Tracer Test Plan'' (SNJV, 2004a) issued in April 2004. The objective of the aquifer test was to determine flow processes and local hydraulic properties for the LCA through long-term constant-rate pumping at the well cluster. This objective was to be achieved in conjunction with detailed sampling of the composite tracer breakthrough at the pumping well, as well as with depth-specific sampling and logging at multiple wells, to provide information for the depth-discrete analysis of formation hydraulic properties, particularly with regard to fracture properties.

Greg Ruskauff

2005-06-01T23:59:59.000Z

65

NREL: Learning - Vehicle Testing and Analysis  

NLE Websites -- All DOE Office Websites (Extended Search)

Vehicle Testing and Analysis Vehicle Testing and Analysis Photo of two large semi-trailer truck cabs parked side by side on a hillside with a shrub-covered hill and sky in the background. Researchers at NREL obtain useful data on energy efficiency during tests conducted both in the laboratory and outdoors in truck cabs like these. Credit: Ken Proc Researchers and engineers test new technologies and vehicles to find out if they will help manufacturers produce more energy-efficient cars, vans, trucks, and buses. They also carry out studies using computer simulations. These studies help to identify the vehicles and components that will provide the best fuel economy and performance at the lowest cost. Fleet Tests and Evaluations NREL's engineers use the latest equipment and techniques to conduct vehicle

66

Using conversions of chemically reacting tracers for numerical determination of temperature profiles in flowing systems and temperature histories in batch systems  

SciTech Connect

This report presents the mathematical bases for measuring internal temperatures within batch and flowing systems using chemically reacting tracers. This approach can obtain temperature profiles of plug-flow systems and temperature histories within batch systems. The differential equations for reactant conversion can be converted into Fredholm integral equations of the first kind. The experimental variable is the tracer-reaction activation energy. When more than one tracer is used, the reactions must have different activation energies to gain information. In systems with temperature extrema, multiple solutions for the temperature profiles or histories can exist, When a single parameter in the temperature distribution is needed, a single-tracer test may furnish this information. For multi-reaction tracer tests, three Fredholm equations are developed. Effects of tracer-reaction activation energy, number of tracers used, and error in the data are evaluated. The methods can determine temperature histories and profiles for many existing systems, and can be a basis for analysis of the more complicated dispersed-flow systems. An alternative to using the Fredholm-equation approach is the use of an assumed temperature- distribution function and incorporation of this function into the basic integral equation describing tracer behavior. The function contains adjustable parameters which are optimized to give the temperature distribution. The iterative Fredholm equation method is tested to see what is required to discriminate between two models of the temperature behavior of Hot Dry Rock (HDR) geothermal reservoirs. Experimentally, ester and amide hydrolyses are valid HDR tracer reactions for measuring temperatures in the range 75-100{degrees}C. Hydrolyses of bromobenzene derivatives are valid HDR tracer reactions for measuring temperatures in the range 150-275{degrees}C.

Brown, L.F.; Chemburkar, R.M.; Robinson, B.A.; Travis, B.J.

1996-04-01T23:59:59.000Z

67

Recent developments in well test analysis  

SciTech Connect

The analysis of pressure transient data in terms of model parameter values is part of the reservoir description process and must be regarded as complementary to other branches of this activity. The advantage of transient pressure data is the depth of investigation achieved by the propagating pressure disturbance. However, the problem of an interpretation`s lack of uniqueness always exists. The objective of well test analysis is to help increase the understanding of the reservoir structure so that ultimate recovery can be improved. This pressure transient analysis review summarizes the major developments that have occurred since the derivative technique was introduced in 1982. This is the first in a series that discusses recent and future developments in well test analysis.

Stewart, G. [Edinburgh Petroleum Services Ltd. (United Kingdom)]|[Heriot-Watt Univ., Edinburgh (United Kingdom)

1997-08-01T23:59:59.000Z

68

Overview and Progress of the Battery Testing, Analysis, and Design...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Battery Testing, Analysis, and Design Activity Overview and Progress of the Battery Testing, Analysis, and Design Activity 2012 DOE Hydrogen and Fuel Cells Program and Vehicle...

69

Top Hat Pressure System Hyperbaric Test Analysis | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Top Hat Pressure System Hyperbaric Test Analysis Top Hat Pressure System Hyperbaric Test Analysis This file contains data from pressure measurements inside Top Hat 4....

70

Energy Storage Testing and Analysis High Power and High Energy...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Testing and Analysis High Power and High Energy Development Energy Storage Testing and Analysis High Power and High Energy Development 2009 DOE Hydrogen Program and Vehicle...

71

Hydrogen Storage Testing and Analysis Research and Development...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

DOE R&D Activities Hydrogen Storage Testing and Analysis Research and Development Hydrogen Storage Testing and Analysis Research and Development DOE's hydrogen storage R&D...

72

Use of Tracers to Characterize Fractures in Engineered Geothermal Systems  

Energy.gov (U.S. Department of Energy (DOE))

Project Objectives: Measure interwell fracture surface area and fracture spacing using sorbing tracers; measure fracture surface areas adjacent to a single geothermal well using tracers and injection/backflow techniques; design, fabricate and test a downhole instrument for measuring fracture flow following a hydraulic stimulation experiment.

73

Statistical Analysis of Transient Cycle Test Results in a 40...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Analysis of Transient Cycle Test Results in a 40 CFR Part 1065 Engine Dynamometer Test Cell Statistical Analysis of Transient Cycle Test Results in a 40 CFR Part 1065 Engine...

74

Thermal Stability of Chelated Indium Activable Tracers  

SciTech Connect

The thermal stability of indium tracer chelated with organic ligands ethylenediaminetetraacetic acid (EDTA) and nitrilotriacetic acid (NTA) was measured for reservoir temperatures of 150, 200, and 240 C. Measurements of the soluble indium concentration was made as a function of time by neutron activation analysis. From the data, approximate thermal decomposition rates were estimated. At 150 C, both chelated tracers were stable over the experimental period of 20 days. At 200 C, the InEDTA concentration remained constant for 16 days, after which the thermal decomposition occurred at a measured rate constant of k = 0.09 d{sup -1}. The thermal decomposition of InNTA at 200 C showed a first order reaction with a measured rate constant of k = 0.16 d{sup -1}. At 240 C, both indium chelated tracers showed rapid decomposition with rate constants greater than 1.8 d{sup -1}. The data indicate that for geothermal reservoir with temperatures up to about 200 C, indium chelated tracers can be used effectively for transit times of at least 20 days. These experiments were run without reservoir rock media, and do not account for concomitant loss of indium tracer by adsorption processes.

Chrysikopoulos, Costas; Kruger, Paul

1986-01-21T23:59:59.000Z

75

Partitioning and Interfacial Tracers for Differentiating NAPL Entrapment Configuration:? Column-Scale Investigation  

Science Journals Connector (OSTI)

Partitioning and Interfacial Tracers for Differentiating NAPL Entrapment Configuration:? Column-Scale Investigation ... In field investigations, such as partitioning interwell tracer tests (PITTs), tracers are deployed before and after cleanup implementation to assess remedial performance (13, 26?28). ... The use of 222Rn, a naturally occurring radioactive isotope, was investigated as a partitioning tracer to detect and quantify the amt. of non-aq.-phase ...

Dongping Dai; Frank T. Barranco Jr.; Tissa H. Illangasekare

2001-11-17T23:59:59.000Z

76

Pyrolysis Research: Bioenergy Testing and Analysis Laboratory BIOENERGY PROGRAM  

E-Print Network (OSTI)

Pyrolysis Research: Bioenergy Testing and Analysis Laboratory BIOENERGY PROGRAM Pyrolysis research is conducted at Texas A&M University at the Bioenergy Testing and Analysis Laboratory. Our researchers create

77

Vehicle Technologies Office Merit Review 2014: Post-Test Analysis...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Post-Test Analysis of Lithium-Ion Battery Materials at Argonne National Laboratory Vehicle Technologies Office Merit Review 2014: Post-Test Analysis of Lithium-Ion Battery...

78

TEST RESULT ANALYSIS WITH RESPECT TO FORMAL SPECIFICATIONS  

E-Print Network (OSTI)

TEST RESULT ANALYSIS WITH RESPECT TO FORMAL SPECIFICATIONS Gregor v. BOCHMANN and Omar B. BELLAL Université de Montréal Montréal, Canada Abstract: There are two aspects to testing: (1) the selection of appropriate test inputs and (2) the analysis of the observed interactions of the implementation under test

von Bochmann, Gregor

79

Test Data Post-Processing and Analysis Master Thesis Test Data Post-Processing and Analysis of Link  

E-Print Network (OSTI)

Test Data Post-Processing and Analysis Master Thesis ­ Test Data Post-Processing and Analysis for both downlink and uplink. This is a post-process of LA and HARQ test data and makes analysis by the e standards and Ericsson Research Analyze the data from processing for the final graph Evaluate a suitable

Zhao, Yuxiao

80

Geographic Information Systems- Tools For Geotherm Exploration, Tracers  

Open Energy Info (EERE)

Systems- Tools For Geotherm Exploration, Tracers Systems- Tools For Geotherm Exploration, Tracers Data Analysis, And Enhanced Data Distribution, Visualization, And Management Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Geographic Information Systems- Tools For Geotherm Exploration, Tracers Data Analysis, And Enhanced Data Distribution, Visualization, And Management Details Activities (4) Areas (3) Regions (0) Abstract: Geographic information systems (GIS) are an underused resource that can help the geothermal industry in exploration, tracer analysis, infrastructure management, and the general distribution and use of data. GIS systems are highly customizable to specific user needs and can use entire corporate data sets through a visual interface. This paper briefly documents the use of GIS in specific examples of geothermal research at the

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

BNL | Tracer Technology Group | BNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Tracer Technology Group Tracer Technology Group Tracer Technology Image The Tracer Technology Group (TTG) developed the use of perfluorocarbon tracers (PFTs) as tools for studying long range atmospheric transport and dispersion in the early 1980s.We are world leaders in the use of PFTs for solving diverse research and engineering problems in the atmospheric sciences, the energy production and utility industries, and building characterization. The unique capabilities of the TTG are derived from our analytical expertise, infrastructure, and experience. We have developed PFT analytical methods that have detection limits at the femtogram level. We can measure global background levels of PFTS at the parts per quadrillion levels. Our scientists and technical staff have extensive experience in

82

Tracer Recovery and Mixing from Two Geothermal Injection-Backflow Studies |  

Open Energy Info (EERE)

Tracer Recovery and Mixing from Two Geothermal Injection-Backflow Studies Tracer Recovery and Mixing from Two Geothermal Injection-Backflow Studies Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Tracer Recovery and Mixing from Two Geothermal Injection-Backflow Studies Details Activities (2) Areas (2) Regions (0) Abstract: Injection-backflow tracer testing on a single well is not a commonly used procedure for geothermal reservoir evaluation, and, consequently, there is little published information on the character or interpretation of tracer recovery curves. Two field experiments were conducted to develop chemical tracer procedures for use with injection-backflow testing, one on the fracture-permeability Raft River reservoir and the other on the matrix-permeability East Mesa reservoir. Results from tests conducted with incremental increases in the injection

83

Detecting Test Clones with Static Analysis.  

E-Print Network (OSTI)

??Large-scale software systems often have correspondingly complicated test suites, which are diffi cult for developers to construct and maintain. As systems evolve, engineers must update (more)

Jain, Divam

2013-01-01T23:59:59.000Z

84

Analysis of drill stem test data  

E-Print Network (OSTI)

constructed to illustrate the effects of changes in Kh/p, , well bore damage, and pro duction rate on the geometry of the drill stem test pressure buildup curve. To formulate the hypothetical drill stem test, certain reser- voir rock and fluid properties... constructed to illustrate the effects of changes in Kh/p, , well bore damage, and pro duction rate on the geometry of the drill stem test pressure buildup curve. To formulate the hypothetical drill stem test, certain reser- voir rock and fluid properties...

Zak, Albin Joseph

2012-06-07T23:59:59.000Z

85

Microsoft PowerPoint - Tracer plume detection-LANL(Fessenden).ppt  

NLE Websites -- All DOE Office Websites (Extended Search)

Tracer Testing of Plume Movement Tracer Testing of Plume Movement Julianna Fessenden and Paul Reimus, Los Alamos National Laboratory Plume modeling (atmosphere, reservoir, groundwater) Purpose of Tracing Plumes Monitor species of interest within reservoir Monitor species of interest outside reservoir Monitor Flow paths Capture zones Monitor Breaches Extent of movement Desirable Tracer Characteristics (1) Inexpensive (measurement, analytical) (2) Low detection limits, no analytical interferences (3) Quick, easy to sample and measure (4) Non toxic, readily permitted (5) Both sorbing/non-sorbing tracer use Perflorocarbon Tracer deployment NETL facilities Classes of Tracers (1) Gas Phase (2) Liquid Phase (3) Organic, inorganic, aqueous (4) Conservative/nonreacting (5) Reactive with mineral surfaces or soluble in non-carrier phase

86

Materials Transportation Testing & Analysis at Sandia National Laboratories  

NLE Websites -- All DOE Office Websites (Extended Search)

Unique Solutions] Unique Solutions] [Working With Us] [Contacting Us] [News Center] [Search] [Home] [navigation panel] Materials Transportation Testing & Analysis Our Mission Our Contacts Write to Us Package Development Risk Assessment RADTRAN GIS Mapping Structural Analysis Thermal Analysis Structural Testing Thermal Testing MIDAS Data Aquisition System Concepts Materials Characterization Regulatory Development Certification Support RMIR Data Base Scientific Visualization Mobile Instrumentation Data Acquisition System (MIDAS) Doug Ammerman, (505) 845-8158 The Mobile Instrumentation Data Acquisition System (MIDAS), developed by Sandia National Laboratories for the U.S. Department of Energy, provides on-site data acquisition of containers that transport radioactive materials during impact, puncture, fire, and immersion tests.

87

An analysis of induction motor testing techniques  

SciTech Connect

There are two main failure mechanisms in induction motors: bearing related and stator related. The Electric Power Research Institute (EPRI) conducted a study which was completed in 1985, and found that near 37% of all failures were attributed to stator problems. Another data source for motor failures is the Nuclear Plant Reliability Data System (NPRDS). This database reveals that approximately 55% of all motors were identified as being degraded before failure occurred. Of these, approximately 35% were due to electrical faults. These are the faults which this paper will attempt to identify through testing techniques. This paper is a discussion of the current techniques used to predict incipient failure of induction motors. In the past, the main tests were those to assess the integrity of the ground insulation. However, most insulation failures are believed to involve turn or strand insulation, which makes traditional tests alone inadequate for condition assessment. Furthermore, these tests have several limitations which need consideration when interpreting the results. This paper will concentrate on predictive maintenance techniques which detect electrical problems. It will present appropriate methods and tests, and discuss the strengths and weaknesses of each.

Soergel, S. [Entergy Operations Inc., Killona, LA (United States)

1996-12-31T23:59:59.000Z

88

Identification and characterization of conservative organic tracers for use as hydrologic tracers for the Yucca Mountain Site Characterization Study; Progress report, June 1--December 31, 1990  

SciTech Connect

Ground water tracers are solutes dissolved in or carried by ground water to delineate flow pathways. Tracers provide information on direction and speed of water movement and that of contaminants that might be conveyed by the water. Tracers can also be used to measure effective porosity, hydraulic conductivity, dispersivity and solute distribution coefficients. For most applications tracers should be conservative, that is, move at the same rate as the water and not sorb to aquifer materials. Tracers must have a number of properties to be functional. Regardless of the desired properties, the chemical and physical behavior of a tracer in ground water and the porous medium under study must be understood. Good estimates of tracer behavior can be obtained from laboratory studies. Studies in this proposal will address tracer properties with analytical method development, static sorption and degradation studies and column transport studies, Mutagenicity tests will be performed on promising candidates. The tracers that will be used for these experiments are fluorinated organic acids and other organic compounds that have the chemical and biological stability necessary to be effective in the Yucca Mountain environment. Special emphasis will be placed on compounds that fluoresce or have very large ultraviolet absorption coefficients for very high analytical sensitivity.

Stetzenbach, K.J.

1990-12-31T23:59:59.000Z

89

Lead Test Assembly Irradiation and Analysis Watts Bar Nuclear Plant,  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Lead Test Assembly Irradiation and Analysis Watts Bar Nuclear Lead Test Assembly Irradiation and Analysis Watts Bar Nuclear Plant, Tennessee and Hanford Site, Richland, Washington Lead Test Assembly Irradiation and Analysis Watts Bar Nuclear Plant, Tennessee and Hanford Site, Richland, Washington SUMMARY This EA evaluates the environmental impacts associated with the U.S. Department of Energy proposed action to conduct a lead test assembly program to confirm the viability of using a commercial light water reactor to produce tritium. PUBLIC COMMENT OPPORTUNITIES None available at this time. DOCUMENTS AVAILABLE FOR DOWNLOAD July 22, 1997 EA-1210: Finding of No Significant Impact Lead Test Assembly Irradiation and Analysis Watts Bar Nuclear Plant, Tennessee and Hanford Site, Richland, Washington July 22, 1997 EA-1210: Final Environmental Assessment

90

Immunochromatographic Diagnostic Test Analysis Using Google Glass  

Science Journals Connector (OSTI)

The same server also provides a dynamic spatiotemporal map and real-time statistics for uploaded RDT results accessible through Internet browsers. ... RDT technologies have since provided various advantages for tackling public health problems including, but not limited to, more effective tracking/monitoring of chronic conditions, infectious diseases and drugs of abuse in at-risk areas, and widespread medical testing by minimally trained medical personnel or community healthcare workers. ... Ozcan Research Group at UCLA gratefully acknowledges the support of the Presidential Early Career Award for Scientists and Engineers (PECASE), Army Research Office (ARO) Life Sciences Division, ARO Young Investigator Award, National Science Foundation (NSF) CAREER Award, NSF CBET Division Biophotonics Program, NSF Emerging Frontiers in Research and Innovation (EFRI) Award, Office of Naval Research (ONR), and National Institutes of Health (NIH) Directors New Innovator Award DP2OD006427 from the Office of the Director, National Institutes of Health. ...

Steve Feng; Romain Caire; Bingen Cortazar; Mehmet Turan; Andrew Wong; Aydogan Ozcan

2014-02-27T23:59:59.000Z

91

Tracer Methods for Characterizing Fracture Stimulation in Engineered Geothermal Systems (EGS)  

Energy.gov (U.S. Department of Energy (DOE))

Project objectives: identify tracers with sorption properties favorable for EGS applications; apply reversibly sorbing tracers to determine the fracture-matrix interface area available for heat transfer; and; explore the feasibility of obtaining fracture-matrix interface area from non-isothermal; single-well injection-withdrawal (SWIW) tests.

92

Simulation analysis of a printed circuit board functional test process  

E-Print Network (OSTI)

. 89 hr 7. 1% Type IV 3. 28 min 1. 74 hr 2 0% Table 1. Mean Test Time, Repair Time, & Failure Percentages for Station Modeled 3. 3 Arrival Stream Generation As previously stated, data available for use in the development of the simulation model... TEST PROCESS ANALYSIS . . . . . . . . . . . . . . . . . . . . 4. 1 Model Validation 4. 2 Initial System Operating Characteristics . 4. 3 Analysis of System Sensitivity to Variation of X For Fixed p, 7 7 9 . 11 15 . . . 18 19 . . . 19 22...

Brinkley, Paul Andrew

2012-06-07T23:59:59.000Z

93

Comparison of observed and predicted short-term tracer gas concentrations in the atmosphere  

SciTech Connect

The Savannah River Laboratory is in the process of conducting a series of atmospheric tracer studies. The inert gas sulfurhexafluoride is released from a height of 62 m for 15 min and concentrations in air are measured on sampling arcs up to 30 km downwind of the release point. Maximum 15 min. air concentrations from 14 of these tracer tests have been compared with the ground-level, centerline air concentration predicted with a Gaussian plume atmospheric transport model using eight different sets of atmospheric dispersion parameters. Preliminary analysis of the results from these comparisons indicates that the dispersion parameters developed at Juelich, West Germany, based on tracers released from a height of 50 m, give the best overall agreement between the predicted and observed values. The median value of the ratio of predicted to observed air concentrations for this set of parameters is 1.3, and the correlation coefficient between the log of the predictions and the log of the observations is 0.72. For the commonly used Pasquill-Gifford dispersion parameters, the values of these same statistics are 4.4 and 0.68, respectively. The Gaussian plume model is widely used to predict air concentrations resulting from short-term radionuclide release to the atmosphere. The results of comparisons such as these must be considered whenever the Gaussian model is used for such purposes. 22 references, 3 tables.

Cotter, S.J.; Miller, C.W.; Lin, W.C.T.

1985-01-01T23:59:59.000Z

94

E-Print Network 3.0 - analysis development test Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

development test Search Powered by Explorit Topic List Advanced Search Sample search results for: analysis development test Page: << < 1 2 3 4 5 > >> 1 Verification Testing Test...

95

Materials Transportation Testing & Analysis at Sandia National Laboratories  

NLE Websites -- All DOE Office Websites (Extended Search)

Analysis Analysis Doug Ammerman, (505) 845-8158 Structural analysis utilizes computer design and analysis tools to provide package designers and certifiers with the most accurate method of determining package response to transportation environments. Computer analysis is an application of known engineering principles that take advantage of high-power computing capabilities in solving the response of computer models to various environments with complex mathematical calculations. It can be used for package certification by generating a computer model of a test object (package) and subjecting it to an accident environment to understand its response. A computer model must be constructed with the same weights, dimensions, hardnesses, specific heat, conduction, etc. as an

96

Preliminary assessment of halogenated alkanes as vapor-phase tracers  

SciTech Connect

New tracers are needed to evaluate the efficiency of injection strategies in vapor-dominated environments. One group of compounds that seems to meet the requirements for vapor-phase tracing are the halogenated alkanes (HCFCs). HCFCs are generally nontoxic, and extrapolation of tabulated thermodynamic data indicate that they will be thermally stable and nonreactive in a geothermal environment. The solubilities and stabilities of these compounds, which form several homologous series, vary according to the substituent ratios of fluorine, chlorine, and hydrogen. Laboratory and field tests that will further define the suitability of HCFCs as vapor-phase tracers are under way.

Adams, Michael C.; Moore, Joseph N.; Hirtz, Paul

1991-01-01T23:59:59.000Z

97

Advantages of Using the ANSI/ASHRAE 110-1995 Tracer Gas Test Method Versus the ANSI/AIHA Z9.5-1992 Face Velocity Test Method for Chemical Laboratory Hood Certification.  

E-Print Network (OSTI)

??A total of 484 tests were performed on chemical laboratory Hoods (chemical hoods), using the ANSI/AIHA Z9.5-1992 (American National Standard Institute / American Industrial Hygiene (more)

Fahim, Mahdi H.

2007-01-01T23:59:59.000Z

98

Tracer Methods for Characterizing Fracture Stimulation in Engineered...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Tracer Methods for Characterizing Fracture Stimulation in Engineered Geothermal Systems (EGS) Tracer Methods for Characterizing Fracture Stimulation in Engineered Geothermal...

99

Value of Information Analysis Project Gnome Site, New Mexico  

SciTech Connect

The Project Gnome site in southeastern New Mexico was the location of an underground nuclear detonation in 1961 and a hydrologic tracer test using radionuclides in 1963. The tracer test is recognized as having greater radionuclide migration potential than the nuclear test because the tracer test radionuclides (tritium, 90Sr, 131I, and 137Cs) are in direct contact with the Culebra Dolomite aquifer, whereas the nuclear test is within a bedded salt formation. The tracer test is the topic here. Recognizing previous analyses of the fate of the Gnome tracer test contaminants (Pohll and Pohlmann, 1996; Pohlmann and Andricevic, 1994), and the existence of a large body of relevant investigations and analyses associated with the nearby Waste Isolation Pilot Plant (WIPP) site (summarized in US DOE, 2009), the Gnome Site Characterization Work Plan (U.S. DOE, 2002) called for a Data Decision Analysis to determine whether or not additional characterization data are needed prior to evaluating existing subsurface intrusion restrictions and determining long-term monitoring for the tracer test. Specifically, the Work Plan called for the analysis to weigh the potential reduction in uncertainty from additional data collection against the cost of such field efforts.

Greg Pohll; Jenny Chapman

2010-01-01T23:59:59.000Z

100

New particle transport diagnostics with tracer-encapsulated solid pellet  

Science Journals Connector (OSTI)

A new diagnostic method for local particle transport, which is based on injection of the tracer-encapsulated solid pellet (TESPEL), was applied for the first time in experiments on the CHS device. Such a configuration of the pellet allows the lithium hydride tracer to reach the core plasma region and be deposited within a few centimetres in the radial direction, which was confirmed by measurements with photomultipliers and CCD imaging. The radial diffusion of the fully ionized tracer is observed by means of charge exchange recombination spectroscopy with the heating neutral beam as a source. The local tracer deposition and complete ionization of the tracer greatly simplify the transport analysis and allow the use of analytic expressions for deriving the diffusion coefficient, D. With this procedure, the diffusion coefficient was determined for various plasma conditions and was found to be larger for discharges with higher electron temperature. An impurity transport code was also applied to the experimental data, which allowed more precise calculation of the transport coefficients including the pinch velocity, V. It is expected that a higher accuracy will be achieved for the case of TESPEL injection into a larger-scale plasma.

K Khlopenkov; S Sudo

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

CERCA LEU fuel assemblies testing in Maria Reactor - safety analysis summary and testing program scope.  

SciTech Connect

The presented paper contains neutronic and thermal-hydraulic (for steady and unsteady states) calculation results prepared to support annex to Safety Analysis Report for MARIA reactor in order to obtain approval for program of testing low-enriched uranium (LEU) lead test fuel assemblies (LTFA) manufactured by CERCA. This includes presentation of the limits and operational constraints to be in effect during the fuel testing investigations. Also, the scope of testing program (which began in August 2009), including additional measurements and monitoring procedures, is described.

Pytel, K.; Mieleszczenko, W.; Lechniak, J.; Moldysz, A.; Andrzejewski, K.; Kulikowska, T.; Marcinkowska, A.; Garner, P. L.; Hanan, N. A.; Nuclear Engineering Division; Institute of Atomic Energy (Poland)

2010-03-01T23:59:59.000Z

102

Hydrological Tracers Using Nanobiotechnology: Proof of Concept  

Science Journals Connector (OSTI)

This new tracer is composed of polylactic acid (PLA) microspheres into which short strands of synthetic DNA and paramagnetic iron oxide nanoparticles are incorporated. ... The synthetic DNA serves as the label or tag in our tracers that allow us to distinguish one tracer from another, and paramagnetic iron oxide nanoparticles are included in the tracer to facilitate magnetic concentration of the tracers in potentially dilute water samples. ... Mahler et al.(30) attached synthetic DNA strands to silica and montmorillonite clay and measured the DNA concentration on the particles and in the supernatant over a three week period. ...

Asha N. Sharma; Dan Luo; M. Todd Walter

2012-07-25T23:59:59.000Z

103

Hydrogen Storage Testing and Analysis R&D | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

DOE R&D Activities Hydrogen Storage Testing and Analysis R&D Hydrogen Storage Testing and Analysis R&D DOE's hydrogen storage R&D activities include testing, analysis, and...

104

Test result analysis and validation of test verdicts G. v. Bochmann, D. Desbiens, M. Dubuc, D. Ouimet and F. Saba  

E-Print Network (OSTI)

Test result analysis and validation of test verdicts G. v. Bochmann, D. Desbiens, M. Dubuc, D's) are useful in the protocol development cycle, particulary in the conformance testing area. In this paper, we present TETRA, a test and trace analysis tool based on the LOTOS FDT which can be used to automatically

von Bochmann, Gregor

105

E-Print Network 3.0 - analysis production test Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

production test Search Powered by Explorit Topic List Advanced Search Sample search results for: analysis production test Page: << < 1 2 3 4 5 > >> 1 Building Reusable Testing...

106

Simulation and Analysis of Converging Shock Wave Test Problems  

SciTech Connect

Results and analysis pertaining to the simulation of the Guderley converging shock wave test problem (and associated code verification hydrodynamics test problems involving converging shock waves) in the LANL ASC radiation-hydrodynamics code xRAGE are presented. One-dimensional (1D) spherical and two-dimensional (2D) axi-symmetric geometric setups are utilized and evaluated in this study, as is an instantiation of the xRAGE adaptive mesh refinement capability. For the 2D simulations, a 'Surrogate Guderley' test problem is developed and used to obviate subtleties inherent to the true Guderley solution's initialization on a square grid, while still maintaining a high degree of fidelity to the original problem, and minimally straining the general credibility of associated analysis and conclusions.

Ramsey, Scott D. [Los Alamos National Laboratory; Shashkov, Mikhail J. [Los Alamos National Laboratory

2012-06-21T23:59:59.000Z

107

An Electrical Analogue for Analysis of Tracer Distribution Kinetics in Biological Systems Author(s): J. R. MacDonald, E. G. Perry, L. L. Madison, D. W. Seldin  

E-Print Network (OSTI)

(s): J. R. MacDonald, E. G. Perry, L. L. Madison, D. W. Seldin Source: Radiation Research, Vol. 6, No. 5 of Tracer Distribution Kinetics in Biological Systems1 J. R. MACDONALD AND E. G. PERRY Research Division

Macdonald, James Ross

108

Prototype spent-fuel canister design, analysis, and test  

SciTech Connect

Sandia National Laboratories was asked by the US Energy Research and Development Administration (now US Department of Energy) to design the spent fuel shipping cask system for the Clinch River Breeder Reactor Plant (CRBRP). As a part of this task, a canister which holds liquid sodium and the spent fuel assembly was designed, analyzed, and tested. The canister body survived the regulatory Type-B 9.1-m (30-ft) drop test with no apparent leakage. However, the commercially available metal seal used in this design leaked after the tests. This report describes the design approach, analysis, and prototype canister testing. Recommended work for completing the design, when funding is available, is included.

Leisher, W.B.; Eakes, R.G.; Duffey, T.A.

1982-03-01T23:59:59.000Z

109

Wear Measurement of Highly Cross-linked UHMWPE using a 7Be Tracer Implantation Technique  

SciTech Connect

The very low wear rates achieved with the current highly cross-linked ultrahigh molecular weight polyethylenes (UHMWPE) used in joint prostheses have proven to be difficult to measure accurately by gravimetry. Tracer methods are there- fore being explored. The purpose of this study was to perform a proof-of-concept experiment on the use of the radioactive tracer beryllium-7 (7Be) for the determination of in vitro wear in a highly cross-linked orthopedic UHMWPE. Three cross-linked and four conventional UHMWPE pins made from compression- molded GUR 1050, were activated with 109 to 1010 7Be nuclei using a new implantation setup that produced a homogenous distribution of implanted nuclei up to 8.5 lm below the surface. The pins were tested for wear in a six-station pin-on-flat appara- tus for up to 7.1 million cycles (178 km). A Germanium gamma detector was employed to determine activity loss of the UHMWPE pins at preset intervals during the wear test. The wear of the cross-linked UHMWPE pins was readily detected and esti- mated to be 17 6 3 lg per million cycles. The conventional-to- cross-linked ratio of the wear rates was 13.1 6 0.8, in the expected range for these materials. Oxidative degradation dam- age from implantation was negligible; however, a weak depend- ence of wear on implantation dose was observed limiting the number of radioactive tracer atoms that can be introduced. Future applications of this tracer technology may include the analysis of location-specific wear, such as loss of material in the post or backside of a tibial insert.

Wimmer, Markus A. [Rush Uniiv. Medical Center; Laurent, Michael P. [Rush Univ. Medical Center; Dwivedi, Yasha [Rush Univ. Medical Center; Gallardo, Luis A. [Rush Univ. Medical Center; Chipps, K. [Colorado School of Mines, Golden; Blackmon, Jeffery C [Louisiana State University; Kozub, R. L. [Tennessee Technological University; Bardayan, Daniel W [ORNL; Gross, Carl J [ORNL; Stracener, Daniel W [ORNL; Smith, Michael Scott [ORNL; Nesaraja, Caroline D [ORNL; Erikson, Luke [Colorado School of Mines, Golden; Patel, Nidhi [Colorado School of Mines, Golden; Rehm, Karl E. [Argonne National Laboratory (ANL); Ahmad, Irshad [Argonne National Laboratory (ANL); Greene, John P. [Argonne National Laboratory (ANL); Greife, Uwe [Colorado School of Mines, Golden

2013-01-01T23:59:59.000Z

110

Identification and characterization of conservative organic tracers for use as hydrologic tracers for the Yucca Mountain Site Characterization Study; Progress report, January 1, 1991--June 30, 1991  

SciTech Connect

Studies continue on the use of organic acids as tracers in hydrology studies of Yucca Mountain. Work performed during this time period has been concentrated in three main areas: the familiarization with, and optimization of, the LC-MS hardware and data system; the initial development of soil column test procedures, which are used for evaluation of both the columns themselves and the tracer compounds; and continuation of the batch sorption and degradation studies for the potential tracers. All three of these tasks will continue, as the addition of new tracer compounds, analytical information, and equipment will necessitate further evaluation of existing methods and procedures. Also included in this report is the final report on an information system.

Stetzenbach, K.J.

1991-12-31T23:59:59.000Z

111

Proc. of the ACM Int'l. Symp on Softw. Testing and Analysis, Seattle, WA, August 1994, pages 169184. Selecting Tests and Identifying Test Coverage Requirements for  

E-Print Network (OSTI)

of structural coverage crite­ ria. Our technique partitions an existing test suite into two subsets: testsProc. of the ACM Int'l. Symp on Softw. Testing and Analysis, Seattle, WA, August 1994, pages 169­184. Selecting Tests and Identifying Test Coverage Requirements for Modified Software* Gregg Rothermel and Mary

Rothermel, Gregg

112

Environmental Assessment LEAD TEST ASSEMBLY IRRADIATION AND ANALYSIS  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

10 10 Environmental Assessment LEAD TEST ASSEMBLY IRRADIATION AND ANALYSIS WATTS BAR NUCLEAR PLANT, TENNESSEE AND HANFORD SITE, RICHLAND, WASHINGTON U. S. DEPARTMENT OF ENERGY RICHLAND OPERATIONS OFFICE COOPERATING AGENCY: TENNESSEE VALLEY AUTHORITY July 1997 ~~~~ Portions o f this dorunrat may be iIlegiile in electronic image products. Images are produced from the best available original doaxnenL DOE/EA-12 10 Environmental Assessment LEAD TEST ASSEMBLY IRRADIATION AND ANALYSIS WATTS BAR NUCLEAR PLANT, TENNESSEE AND HANFORD SITE, RICHLAND, WASHINGTON U. S. DEPARTMENT OF ENERGY RICHLAND OPERATIONS OFFICE COOPERATING AGENCY: TENNESSEE VALLEY AUTHORITY July 1997 U.S. Department of Energy ALARA ANL-W BWR CFR CEDE CEQ Ci CLWR DOE DOT EA EDE EFPD EIS FFTF

113

Analysis and testing of multilayer and aerogel insulation configurations  

SciTech Connect

Multilayer insulation systems that have robust operational characteristics have long been a goal of many research projects. Such thermal insulation systems may need to offer some degree of structural support and/or mechanical integrity during loss of vacuum scenarios while continuing to provide insulative value to the vessel. Aerogel-based composite blankets can be the best insulation materials in ambient pressure environments; in high vacuum, the thermal performance of aerogel improves by about one order of magnitude. Standard multilayer insulation (MLI) is typically 50% worse at ambient pressure and at soft vacuum, but as much as two or three orders of magnitude better at high vacuum. Different combinations of aerogel blanket and multilayer insulation materials have been tested at the Cryogenics Test Laboratory of NASA Kennedy Space Center. Analysis performed at Oak Ridge National Laboratory showed an importance to the relative location of the MLI and aerogel blankets. Apparent thermal conductivity testing under cryogenicvacuum conditions was performed to verify the analytical conclusion. Tests results are shown to be in agreement with the analysis which indicated that the best performance is obtained with aerogel layers located in the middle of the blanket insulation system.

Johnson, W L [NASA Kennedy Space Center, Kennedy Space Center, Florida; Demko, Jonathan A [ORNL; Fesmire, J. E. [NASA Kennedy Space Center, Kennedy Space Center, Florida

2010-01-01T23:59:59.000Z

114

Conductivity tracer studies for a fluidized-bed bioreactor  

SciTech Connect

An automated conductivity tracer test was developed to measure the residence time distribution (RTD) of a cometabolic fluidized-bed bioreactor (FBBR). The FBBR contained sand-core bioparticles grown with phenol and it provided high (70% to 80%) removal of trichloroethene (TCE) at short (3 minute) detention times. The tracer test apparatus was constructed with off-the-shelf components controlled with a PC-based data acquisition system. Non-disruptive hydrodynamic testing was obtained during normal operation of the FBBR. The conductivity of injected brine pulses was monitored at the reactor inlet and outlet. Dispersion numbers and detention times were computed by fitting the advection-dispersion model to the tracer curves. Typical dispersion numbers attributed to the fluidized-bed of bioparticles ranged from 0.07 to 0.11. In simplified modeling of the FBBR, dispersion was found to have little effect on TCE removal. Based on the dispersion of brine pulses, it was determined that phenol feed pulses injected at inhibitory concentrations over 2 g/L would be rapidly dispersed in the biological bed to non-inhibitory concentrations.

Leung, S.Y.; Segar, R.L. Jr. [Univ. of Missouri, Columbia, MO (United States). Dept. of Civil Engineering

1997-12-31T23:59:59.000Z

115

Microseismic Tracer Particles for Hydraulic Fracturing  

NLE Websites -- All DOE Office Websites (Extended Search)

Microseismic Tracer Particles for Hydraulic Fracturing Microseismic Tracer Particles for Hydraulic Fracturing Microseismic Tracer Particles for Hydraulic Fracturing Scientists at Los Alamos National Laboratory have developed a method by which microseismic events can be discriminated/detected that correspond to only the portion of the hydraulic fracture that contains the proppant material and can be expected to be conductive to the flow of oil and gas. July 3, 2013 Microseismic Tracer Particles for Hydraulic Fracturing Figure 1: A graph of ionic conductivity as a function of temperature for the anti-perovskite Li3OCl. Available for thumbnail of Feynman Center (505) 665-9090 Email Microseismic Tracer Particles for Hydraulic Fracturing Applications: Oil and gas production Geophysical exploration Benefits: Tracks the disposition of material in a hydraulic fracturing

116

Building, Testing, and Post Test Analysis of Durability Heat Pipe No.6  

SciTech Connect

The Solar Thermal Program at Sandia supports work developing dish/Stirling systems to convert solar energy into electricity. Heat pipe technology is ideal for transferring the energy of concentrated sunlight from the parabolic dish concentrators to the Stirling engine heat tubes. Heat pipes can absorb the solar energy at non-uniform flux distributions and release this energy to the Stirling engine heater tubes at a very uniform flux distribution thus decoupling the design of the engine heater head from the solar absorber. The most important part of a heat pipe is the wick, which transports the sodium over the heated surface area. Bench scale heat pipes were designed and built to more economically, both in time and money, test different wicks and cleaning procedures. This report covers the building, testing, and post-test analysis of the sixth in a series of bench scale heat pipes. Durability heat pipe No.6 was built and tested to determine the effects of a high temperature bakeout, 950 C, on wick corrosion during long-term operation. Previous tests showed high levels of corrosion with low temperature bakeouts (650-700 C). Durability heat pipe No.5 had a high temperature bakeout and reflux cleaning and showed low levels of wick corrosion after long-term operation. After testing durability heat pipe No.6 for 5,003 hours at an operating temperature of 750 C, it showed low levels of wick corrosion. This test shows a high temperature bakeout alone will significantly reduce wick corrosion without the need for costly and time consuming reflux cleaning.

MOSS, TIMOTHY A.

2002-03-01T23:59:59.000Z

117

Analysis of household refrigerators for different testing standards  

SciTech Connect

This study highlights the salient differences among various testing standards for household refrigerator-freezers and proposes a methodology for predicting the performance of a single evaporator-based vapor-compression refrigeration system (either refrigerator or freezer) from one test standard (where the test data are available-the reference case) to another (the alternative case). The standards studied during this investigation include the Australian-New Zealand Standard (ANZS), the International Standard (ISO), the American National Standard (ANSI), the Japanese Industrial Standard (JIS), and the Chinese National Standard (CNS). A simple analysis in conjunction with the BICYCLE model (Bansal and Rice 1993) is used to calculate the energy consumption of two refrigerator cabinets from the reference case to the alternative cases. The proposed analysis includes the effect of door openings (as required by the JIS) as well as defrost heaters. The analytical results are found to agree reasonably well with the experimental observations for translating energy consumption information from one standard to another.

Bansal, P.K. [Univ. of Auckland (New Zealand). Dept. of Mechanical Engineering; McGill, I. [Fischer and Paykel Ltd., Auckland (New Zealand)

1995-08-01T23:59:59.000Z

118

Tracer Methods for Characterizing Fracture Creation in Enhanced...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Tracer Methods for Characterizing Fracture Creation in Enhanced Geothermal Systems; 2010 Geothermal Technology Program Peer Review Report Tracer Methods for Characterizing Fracture...

119

Tracer Methods for Characterizing Fracture Stimulation in Enhanced...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Tracer Methods for Characterizing Fracture Stimulation in Enhanced Geothermal Systems (EGS); 2010 Geothermal Technology Program Peer Review Report Tracer Methods for Characterizing...

120

Quantum Dot Tracers for Use in Engineered Geothermal | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

tracerspeer2013.pdf More Documents & Publications Tracer Methods for Characterizing Fracture Stimulation in Engineered Geothermal Systems (EGS) Quantum Dot Tracers for Use in...

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Application of failure assessment diagrams to proof test analysis  

SciTech Connect

Failure Assessment Diagrams (FADs) are constructed which are applicable to a proof test analysis. The FADs are based on failure curves derived from published elastic-plastic J solutions for a wide range of structural features (e.g., structural geometries, crack shapes and sizes, and applied loads) and strain hardening rates. It is shown how failure curves can be constructed which are relatively how failure curves can be constructed which are relatively insensitive to detailed structural features. These are utilized in the construction of failure curves for use in determining the maximum construction of failure curves for use in determining the maximum flaw sizes that could just survive a proof test overload, and the critical crack size under service conditions. The application of the derived failure curves to determining the flaw screening capability conferred by proof testing is discussed. The concepts behind the developed failure curves are being incorporated into a ``state-of-the-art`` proof test guidelines handbook being developed for NASA.

Chell, G.G.; McClung, R.C. [Southwest Research Institute, San Antonio, TX (United States); Russell, D.A. [Rockwell International Corp., Canoga Park, CA (United States). Rocketdyne Division

1995-11-01T23:59:59.000Z

122

Effect of room air recirculation delay on the decay rate of tracer gas  

NLE Websites -- All DOE Office Websites (Extended Search)

Effect of room air recirculation delay on the decay rate of tracer gas Effect of room air recirculation delay on the decay rate of tracer gas Title Effect of room air recirculation delay on the decay rate of tracer gas Publication Type Conference Proceedings Year of Publication 2004 Authors Kristoffersen, Astrid H., Ashok J. Gadgil, and David M. Lorenzetti Conference Name 9th International Conference on Air Distribution in Rooms - RoomVent 2004, Pagination pp 6 Date Published September 5-8, 2 Conference Location Coimbra, Portugal Abstract Tracer gas measurements are commonly used to estimate the fresh air exchange rate in a room or building. Published tracer decay methods account for fresh air supply, infiltration, and leaks in ductwork. However, the time delay associated with a ventilation system recirculating tracer back to the room also affects the decay rate. We present an analytical study of tracer gas decay in a well-mixed, mechanically-ventilated room with recirculation. The analysis shows that failing to account for delays can lead to under- or over-estimates of the fresh air supply, depending on whether the decay rate calculation includes the duct volume

123

Fast Flux Test Facility final safety analysis report. Amendment 73  

SciTech Connect

This report provides Final Safety Analysis Report (FSAR) Amendment 73 for incorporation into the Fast Flux Test Facility (FFTR) FSAR set. This page change incorporates Engineering Change Notices (ECNs) issued subsequent to Amendment 72 and approved for incorparoration before May 6, 1993. These changes include: Chapter 3, design criteria structures, equipment, and systems; chapter 5B, reactor coolant system; chapter 7, instrumentation and control systems; chapter 9, auxiliary systems; chapter 11, reactor refueling system; chapter 12, radiation protection and waste management; chapter 13, conduct of operations; chapter 17, technical specifications; chapter 20, FFTF criticality specifications; appendix C, local fuel failure events; and appendix Fl, operation at 680{degrees}F inlet temperature.

Gantt, D.A.

1993-08-01T23:59:59.000Z

124

USED FUEL RAIL SHOCK AND VIBRATION TESTING OPTIONS ANALYSIS  

SciTech Connect

The objective of the rail shock and vibration tests is to complete the framework needed to quantify loads of fuel assembly components that are necessary to guide materials research and establish a technical basis for review organizations such as the U.S. Nuclear Regulatory Commission (NRC). A significant body of experimental and numerical modeling data exists to quantify loads and failure limits applicable to normal conditions of transport (NCT) rail transport, but the data are based on assumptions that can only be verified through experimental testing. The test options presented in this report represent possible paths for acquiring the data that are needed to confirm the assumptions of previous work, validate modeling methods that will be needed for evaluating transported fuel on a case-by-case basis, and inform material test campaigns on the anticipated range of fuel loading. The ultimate goal of this testing is to close all of the existing knowledge gaps related to the loading of used fuel under NCT conditions and inform the experiments and analysis program on specific endpoints for their research. The options include tests that would use an actual railcar, surrogate assemblies, and real or simulated rail transportation casks. The railcar carrying the cradle, cask, and surrogate fuel assembly payload would be moved in a train operating over rail track modified or selected to impart shock and vibration forces that occur during normal rail transportation. Computer modeling would be used to help design surrogates that may be needed for a rail cask, a casks internal basket, and a transport cradle. The objective of the design of surrogate components would be to provide a test platform that effectively simulates responses to rail shock and vibration loads that would be exhibited by state-of-the-art rail cask, basket, and/or cradle structures. The computer models would also be used to help determine the placement of instrumentation (accelerometers and strain gauges) on the surrogate fuel assemblies, cask and cradle structures, and the railcar so that forces and deflections that would result in the greatest potential for damage to high burnup and long-cooled UNF can be determined. For purposes of this report we consider testing on controlled track when we have control of the track and speed to facilitate modeling.

Ross, Steven B.; Best, Ralph E.; Klymyshyn, Nicholas A.; Jensen, Philip J.; Maheras, Steven J.

2014-09-29T23:59:59.000Z

125

E-Print Network 3.0 - advanced test-analysis model Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

test-analysis model Search Powered by Explorit Topic List Advanced Search Sample search results for: advanced test-analysis model Page: << < 1 2 3 4 5 > >> 1 Advanced Vehicle...

126

Post-Test Analysis of Lithium-Ion Battery Materials at Argonne...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Test Analysis of Lithium-Ion Battery Materials at Argonne National Laboratory Post-Test Analysis of Lithium-Ion Battery Materials at Argonne National Laboratory 2013 DOE Hydrogen...

127

Chelated Indium Activable Tracers for Geothermal Reservoirs  

E-Print Network (OSTI)

SGP-TR-99 Chelated Indium Activable Tracers for Geothermal Reservoirs Constantinos V. Chrysikopoulos Paul Kruger June 1986 Financial support was provided through the Stanford Geothermal Program under University Stanford Geothermal Program Interdisciplinary Research in Engineering and Earth Sciences STANFORD

Stanford University

128

CO2 tracer gas concentration decay method for measuring air change rate  

Science Journals Connector (OSTI)

Abstract The measure of air change rate (ACR) in building is a difficult and usually expensive task. The tracer gas method is the reference technique but its implementation is difficult and the interpretation of results is not straightforward. In the present work, the concentration decay method by multiple CO2 transmitters is experimentally validated in the case of cross-ventilation. It is observed that in-situ CO2 transmitters lead to ACR values in good agreement with reference measurements obtained from mechanically controlled values. Whereas multiple transmitters in different sampling positions show the imperfect mixing, a sensor located at the outlet or an averaged value of all sensors can provide an accurate measure of the ACR. Moreover, the spatial variation of CO2 concentration can be used to assess the ventilation efficiency in the test chamber. Different measures and calculation methods are discussed, and the uncertainty analysis of each method is carried out.

Shuqing Cui; Michal Cohen; Pascal Stabat; Dominique Marchio

2015-01-01T23:59:59.000Z

129

Proceedings of the 1st workshop on Constraints in Software Testing, Verification and Analysis  

E-Print Network (OSTI)

Proceedings of the 1st workshop on Constraints in Software Testing, Verification and Analysis in Software Testing, Verifi- cation and Analysis (CSTVA'06), a workshop of the twelfth International interest in the application of constraint solving techniques to the field of testing and analysis

130

Flux Measurements of Volatile Organic Compounds from an Urban Tower Platform in Houston, Texas: Trends and Tracers  

E-Print Network (OSTI)

and traffic counts except during variable working hours. To assign measured fluxes to local sources, we tested a bulk flux footprint model (Kormann and Meixner model) designed for uniform emission surface areas in this urban, heterogeneous landscape. Tracer...

Hale, Martin C

2014-05-08T23:59:59.000Z

131

Tracer-encapsulated cryogenic pellet production for particle transport diagnostics  

Science Journals Connector (OSTI)

A device for producing a tracer-encapsulated cryogenic pellet is constructed for an accurate transport diagnostic system to measure particle transport both parallel and perpendicular to the magnetic-field lines in magnetic confinementdevices. As for the typical configuration of the tracer-encapsulated pellet it is proposed that a 50250 ?m diam tracer made of a light atom such as lithium carbon etc. is encapsulated in the center of a 13 mm diam cylindrical pellet of hydrogen. For demonstration of the device operation a 240 ?m diam carbon sphere is encapsulated in the center of a 3 mm diam cylindrical pellet of hydrogen and accelerated by a light gas gun to velocities of 400800 m/s in a test chamber. The pellet has been photographed simultaneously from two directions and the two two-dimensional images are reconstructed to a three-dimensional image. Thus the proof of principle of the device operation has been demonstrated.

S. Sudo; H. Itoh; K. Khlopenkov

1997-01-01T23:59:59.000Z

132

Scaling analysis for a reactor vessel mixing test  

SciTech Connect

The Westinghouse AP600 advanced pressurized water reactor design uses a gravity-forced safety injection system with two nozzles in the reactor vessel downcomer. In the event of a severe overcooling transient such as a steam-line break, this system delivers boron to the core to offset positive reactivity introduced by the negative moderator defect. To determine if the system design is capable of successfully terminating this type of reactivity transient, a test of the system has been initiated. The test will utilize a 1:9 scale model of the reactor vessel and cold legs. The coolant will be modeled with air, while the safety injection fluid will be simulated with a dense gas. To determine the necessary parameters for this model, a scaling analysis was performed. The continuity, diffusion, and axial Navier-Stokes equations for the injected fluid were converted into dimensionless form. A Boussinesq formulation for turbulent viscosity was applied in these equations. This procedure identified the Richardson, mixing Reynolds, diffusion Fourier, and Euler numbers as dimensionless groups of interest. Order-of-magnitude evaluation was used to determine that the Richardson and mixing Reynolds numbers were the most significant parameters to match for a similar experiment.

Radcliff, T.D.; Parsons, J.R.; Johnson, W.S. (Univ. of Tennessee, Knoxville, TN (United States)); Ekeroth, D.E. (Westinghouse Electric Corp., Pittsburgh, PA (United States))

1993-01-01T23:59:59.000Z

133

Transient Signal Analysis is a digital device testing method that is based on the analysis of voltage transients at multi-  

E-Print Network (OSTI)

-free and defective devices in both simulations and hardware. 1.0 Introduction Transient Signal Analysis (TSAAbstract Transient Signal Analysis is a digital device testing method that is based on the analysis of voltage transients at multi- ple test points. The power supply transient signals of an 8-bit multiplier

Plusquellic, James

134

A formal analysis of requirements-based testing  

Science Journals Connector (OSTI)

The aim of requirements-based testing is to generate test cases from a set of requirements for a given system or piece of software. In this paper we propose a formal semantics for the generation of test cases from requirements by revising and extending ... Keywords: coverage metrics, requirements-based testing

Charles Pecheur; Franco Raimondi; Guillaume Brat

2009-07-01T23:59:59.000Z

135

Saturated Zone In-Situ Testing  

SciTech Connect

The purpose of this scientific analysis is to document the results and interpretations of field experiments that have been conducted to test and validate conceptual flow and radionuclide transport models in the saturated zone (SZ) near Yucca Mountain. The test interpretations provide estimates of flow and transport parameters that are used in the development of parameter distributions for Total System Performance Assessment (TSPA) calculations. These parameter distributions are documented in the revisions to the SZ flow model report (BSC 2003 [ 162649]), the SZ transport model report (BSC 2003 [ 162419]), the SZ colloid transport report (BSC 2003 [162729]), and the SZ transport model abstraction report (BSC 2003 [1648701]). Specifically, this scientific analysis report provides the following information that contributes to the assessment of the capability of the SZ to serve as a barrier for waste isolation for the Yucca Mountain repository system: (1) The bases for selection of conceptual flow and transport models in the saturated volcanics and the saturated alluvium located near Yucca Mountain. (2) Results and interpretations of hydraulic and tracer tests conducted in saturated fractured volcanics at the C-wells complex near Yucca Mountain. The test interpretations include estimates of hydraulic conductivities, anisotropy in hydraulic conductivity, storativities, total porosities, effective porosities, longitudinal dispersivities, matrix diffusion mass transfer coefficients, matrix diffusion coefficients, fracture apertures, and colloid transport parameters. (3) Results and interpretations of hydraulic and tracer tests conducted in saturated alluvium at the Alluvium Testing Complex (ATC), which is located at the southwestern corner of the Nevada Test Site (NTS). The test interpretations include estimates of hydraulic conductivities, storativities, total porosities, effective porosities, longitudinal dispersivities, matrix diffusion mass transfer coefficients, and colloid transport parameters. (4) Comparisons of sorption parameter estimates for a reactive solute tracer (lithium ion) derived from both the C-wells field tracer tests and laboratory tests using C-wells core samples. (5) Sorption parameter estimates for lithium ion derived from laboratory tests using alluvium samples from NC-EWDP-19D1 (one of the wells at the ATC) so that a comparison of laboratory- and field-derived sorption parameters can be made in saturated alluvium if cross-hole tracer tests are conducted at the ATC.

P. W. Reimus; M. J. Umari

2003-12-23T23:59:59.000Z

136

SATURATED ZONE IN-SITU TESTING  

SciTech Connect

The purpose of this scientific analysis is to document the results and interpretations of field experiments that test and validate conceptual flow and radionuclide transport models in the saturated zone (SZ) near Yucca Mountain, Nevada. The test interpretations provide estimates of flow and transport parameters used in the development of parameter distributions for total system performance assessment (TSPA) calculations. These parameter distributions are documented in ''Site-Scale Saturated Zone Flow Model (BSC 2004 [DIRS 170037]), Site-Scale Saturated Zone Transport'' (BSC 2004 [DIRS 170036]), Saturated Zone Colloid Transport (BSC 2004 [DIRS 170006]), and ''Saturated Zone Flow and Transport Model Abstraction'' (BSC 2004 [DIRS 170042]). Specifically, this scientific analysis contributes the following to the assessment of the capability of the SZ to serve as part of a natural barrier for waste isolation for the Yucca Mountain repository system: (1) The bases for selection of conceptual flow and transport models in the saturated volcanics and the saturated alluvium located near Yucca Mountain. (2) Results and interpretations of hydraulic and tracer tests conducted in saturated fractured volcanics at the C-wells complex near Yucca Mountain. The test interpretations include estimates of hydraulic conductivities, anisotropy in hydraulic conductivity, storativities, total porosities, effective porosities, longitudinal dispersivities, matrix diffusion mass transfer coefficients, matrix diffusion coefficients, fracture apertures, and colloid transport parameters. (3) Results and interpretations of hydraulic and tracer tests conducted in saturated alluvium at the Alluvial Testing Complex (ATC) located at the southwestern corner of the Nevada Test Site (NTS). The test interpretations include estimates of hydraulic conductivities, storativities, total porosities, effective porosities, longitudinal dispersivities, matrix diffusion mass transfer coefficients, and colloid transport parameters. (4) Comparisons of sorption parameter estimates for a reactive solute tracer (lithium ion) derived from the C-wells field tracer tests and laboratory tests using C-wells core samples. (5) Sorption parameter estimates for lithium ion derived from laboratory tests using alluvium samples from ATC well NC-EWDP-19D. These estimates will allow a comparison of laboratory- and field-derived sorption parameters to be made in saturated alluvium if cross-hole tracer tests are conducted at the ATC.

P.W. REIMUS

2004-11-08T23:59:59.000Z

137

Materials Transportation Testing & Analysis at Sandia National Laboratories  

NLE Websites -- All DOE Office Websites (Extended Search)

Testing Testing Carlos Lopez, (505) 845-9545 Packages transporting the larger "Type B" quantities of radioactive materials must be qualified and certified under Title 10, Code of Federal Regulations, Part 71, or under the equivalent international standard ST-1 issued by the International Atomic Energy Agency. The principal thermal qualification test is the 30 minute pool fire. As part of the National Transportation Program, the Transportation Risk & Packaging Program at Sandia can plan and conduct these tests for DOE and other package suppliers. Test Plans, QA plans and other necessary test documents can be prepared for customer and regulatory approval. Tests may be conducted with a variety of available facilities at Sandia, including large pools, an indoor fire facility, and a radiant heat test

138

Method of dispersing particulate aerosol tracer  

DOE Patents (OSTI)

A particulate aerosol tracer which comprises a particulate carrier of sheet silicate composition having a particle size up to one micron, and a cationic dopant chemically absorbed in solid solution in the carrier. The carrier is preferably selected from the group consisting of natural mineral clays such as bentonite, and the dopant is selected from the group consisting of rare earth elements and transition elements. The tracers are dispersed by forming an aqueous salt solution with the dopant present as cations, dispersing the carriers in the solution, and then atomizing the solution under heat sufficient to superheat the solution droplets at a level sufficient to prevent reagglomeration of the carrier particles.

O'Holleran, Thomas P. (Belleville, MI)

1988-01-01T23:59:59.000Z

139

Wavelet analysis in ecology and epidemiology: impact of statistical tests  

Science Journals Connector (OSTI)

...and epidemiology: impact of statistical tests Bernard Cazelles 1 2 Kevin Cazelles 1 Mario...epidemiological time series. Statistical hypothesis tests are conducted on associated wavelet quantities...illustrates the need for the adequate statistical test of the wavelet spectrum before extracting...

2014-01-01T23:59:59.000Z

140

Nonparametric and semiparametric regression analysis of group testing samples  

E-Print Network (OSTI)

the assumption that the group testing result is positive if at least one individual sample in the corresponding designs in attempt to find optimal group size which minimizes the total number of tests under various and Verstraeten [13] suggested that testing pools can lower false positive and false negative rates in low

Xie, Minge

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

FINAL REPORT: EDDY-COVARIANCE FLUX TOWER AND TRACER TECHNOLOGY SUPPORT FOR THE UNIVERSITY OF GEORGIA PROPOSAL: FROM TOWER TO PIXEL: INTEGRATION OF PATCH-SIZE NEE USING EXPERIMENTAL MODELING FOOTPRINT ANALYSIS.  

SciTech Connect

Brookhaven National Laboratory has been funded since October of 2000 to provide assistance to the University of Georgia in conducting footprint analyses of individual towers based on meteorology and trace gas measurements. Brookhaven researchers conducted air flow measurements using perfluorocarbon tracers and meteorological instrumentation for three experimental campaigns at an AmeriFlux research site maintained by Dr. Monique Leclerc near Gainesville, FL. In addition, BNL provided assistance with remote data collection and distribution from remote field sites operated by Dr. John Hom of the US Forest Service in the Pine Barrens of New Jersey and at FACE research sites in North Carolina and Wisconsin.

LEWIN,K.F.; NAGY, J.; WATSON, T.B.

2007-09-01T23:59:59.000Z

142

USV test flight by stratospheric balloon: Preliminary mission analysis  

Science Journals Connector (OSTI)

The Unmanned Space Vehicle test flights will use a 7m 1300kg aircraft. The first three launches will take place at the Italian Space Agency ASI base in TrapaniMilo, Sicily, through a stratospheric balloon that will drop the aircraft at a predefined height. After free fall acceleration to transonic velocities, the parachute deployment will allow a safe splash down in the central Mediterranean Sea. The goal of this article is to show the preliminary analysis results for the first USV flight. We carried out a statistical study for the year 20002003, evaluating the typical summer and winter launch windows of the TrapaniMilo base. First, in the center Mediterranean, we define safe recovery areas. They cannot be reached during the balloon ascending phase so, after a sufficiently long floating part able to catch the open sea, the balloon will go down to the release height (24km). The simulation foresees a 400,000m3 balloon and 3 valves for the altitude transfer. A safe splash down must occur far enough from the nearest coast: the minimum distance is considered around 25km. The vehicle should be released at a distance, from the nearest coast, greater than this minimum amount plus the USV model maximum horizontal translation, during its own trajectory from balloon separation to splash down. In this way we define safe release areas for some possible translations. Winter stratospheric winds are less stable. The winter average flight duration is 7h and it is probably too long for the diurnal recovery requirement and its scheduled procedures. Comparing past stratospheric balloons flights and trajectories computed using measured meteorological data (analysis), with their predictions made using forecast models and soundings, we obtain the standard deviation of the trajectory forecast uncertainty at the balloonaircraft separation. Two cases are taken into account: predictions made 24 and 6h before the launch. Assuming a Gaussian latitudinal uncertainty distribution for the prediction 6h before the launch, we are able to identify the forecast trajectories that have a probability greater than 97% to reach the safe release areas. Simulating the summer windows trajectories for the years from 2000 to 2003 and for the favorable ground wind days, we obtain the number of trajectories with the desired forecast probabilities.

A. Cardillo; I. Musso; R. Ibba; O. Cosentino

2006-01-01T23:59:59.000Z

143

ANALYSIS OF THE EFFECTIVENESS OF STUDENTS' TEST DATA C. Stringfellow, Z. Kurunthottical  

E-Print Network (OSTI)

ANALYSIS OF THE EFFECTIVENESS OF STUDENTS' TEST DATA C. Stringfellow, Z. Kurunthottical Department.stringfellow@mwsu.edu, zenink@hotmail.com ABSTRACT One of the challenges for students is to come up with appropriate test cases to test the applications they develop. The challenge for instructors is to come up with a small test suite

Stringfellow, Catherine V.

144

Accelerated life testing : Analysis and optimization Seyyedeh zohreh Fatemi, Fabrice Guerin, Laurent Saintis  

E-Print Network (OSTI)

Accelerated life testing : Analysis and optimization Seyyedeh zohreh Fatemi, Fabrice Guerin to conduct a sequential test defined by an optimal accelerated testing plan. This test plan is based of reliability function, scale and shape parameters ...) and acceleration model (choice of model, model

Boyer, Edmond

145

Materials Transportation Testing & Analysis at Sandia National Laboratories  

NLE Websites -- All DOE Office Websites (Extended Search)

Testing Testing Doug Ammerman, (505) 845-8158 Type B packages that transport radioactive materials must survive a sequence of full-scale (actual physical size) impact, puncture, fire, and immersion tests designed to replicate transportation accident conditions. The Hypothetical Accident Conditions (six tests as defined in 10 CFR Part 71.73) tests 1 through 4 (Drop, Crush, Puncture and Fire) are sequential, test 5 (Immersion) is performed on either a previously tested or untested package. Free Drop Test Crush Test Puncture Test Thermal Test Immersion Test [drop] Click to view picture [crush] Click to view picture [puncture] Click to view picture [thermal] Click to view picture [immersion] Click to view picture Dropping a package from 30 feet onto an unyielding target. (the unyielding target forces all of the deformation to be in the package, none in the target). The speed on impact is 44 feet per second or 30 miles per hour. Dropping a 1100 pound steel plate from 30 feet onto a package. This test is only required for packages weighing less than 1100 pounds. The speed on impact is 44 feet per second or 30 miles per hour. Dropping a package from 40 inches onto a welded, 6 inch diameter, steel spike. The speed on impact is 14.6 feet per second or 10 miles per hour. Placing a package 40 inches above a pool of burning fuel for 30 minutes at 800 degrees Celsius (1475 degrees Fahrenheit). Placing a package under 50 feet of water for 8 hours. Fissile material packages are also immersed under 3 feet of water for 8 hours sequentially after tests 1 through 4

146

Systems and Controls Analysis and Testing; Harvesting More Wind Energy with Advanced Controls Technology (Fact Sheet)  

SciTech Connect

This fact sheet outlines the systems and controls analysis and testing that takes place at the NWTC on the Controls Advanced Research Turbines.

Not Available

2010-01-01T23:59:59.000Z

147

Post-Test Analysis of Lithium-Ion Battery Materials at Argonne...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

not contain any proprietary, confidential, or otherwise restricted information Post-test Analysis of Lithium-Ion Battery Materials at Argonne National Laboratory Overview...

148

Post-Test Analysis of Lithium-Ion Battery Materials at Argonne...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DC This presentation contains no proprietary information. Project ID: ES166 Post-test Analysis of Lithium-Ion Battery Materials at Argonne National Laboratory Overview...

149

Analysis of Well ER-6-2 Testing, Yucca Flat FY 2004 Testing Program, Nevada Test Site, Nye County, Nevada, Rev. No.: 0  

SciTech Connect

This report documents the analysis of data collected for Well ER-6-2 during fiscal year (FY) 2004 Yucca Flat well development and testing program (herein referred to as the ''testing program''). Participants in Well ER-6-2 field development and hydraulic testing activities were: Stoller-Navarro Joint Venture (SNJV), Bechtel Nevada (BN), Desert Research Institute (DRI), Los Alamos National Laboratory (LANL), Lawrence Livermore National Laboratory (LLNL), U.S. Geological Survey (USGS), and the University of Nevada, Las Vegas-Harry Reid Center (UNLV-HRC). The analyses of data collected from the Well ER-6-2 testing program were performed by the SNJV.

Greg Ruskauff

2005-07-01T23:59:59.000Z

150

Thermo-mechanical analysis of a DEMO divertor under the EFREMOV test conditions  

E-Print Network (OSTI)

Thermo-mechanical analysis of a DEMO divertor under the EFREMOV test conditions Igor Simonovski as a boundary condition in a thermo-mechanical analysis of the divertor. The analysis is performed for a number to Fusion Engineering and Design May 11, 2009 #12;Key words: thermo-mechanical analysis, divertor, He

Cizelj, Leon

151

Prototype dish testing and analysis at Sandia National Laboratories  

SciTech Connect

During the past year, Sandia National Laboratories performed on-sun testing of several dish concentrator concepts. These tests were undertaken at the National Solar Thermal Test Facility (NSTTF). Two of the tests were performed in support of the DOE Concentrator Receiver Development Program. The first was on-sun testing of the single-element stretched-membrane dish; this 7-meter diameter dish uses a single preformed metal membrane with an aluminized polyester optical surface and shows potential for future dish-Stirling systems. The next involved two prototype facets from the Faceted Stretched-Membrane Dish Program. These facets, representing competitive design concepts, are closest to commercialization. Five 1-meter triangular facets were tested on-sun as part of the development program for a solar dynamic system on Space Station Freedom. While unique in character, all the tests utilized the Beam Characterization System (BCS) as the main measurement tool and all were analyzed using the Sandia-developed CIRCE2 computer code. The BCS is used to capture and digitize an image of the reflected concentrator beam that is incident on a target surface. The CIRCE2 program provides a computational tool, which when given the geometry of the concentrator and target as well as other design parameters will predict the flux distribution of the reflected beam. One of these parameters, slope error, is the variable that has a major effect in determining the quality of the reflected beam. The methodology used to combine these two tools to predict uniform slope errors for the dishes is discussed in this document. As the Concentrator Development Programs continue, Sandia will test and evaluate two prototype dish systems. The first, the faceted stretched-membrane dish, is expected to be tested in 1992, followed by the full-scale single-element stretched-membrane dish in 1993. These tests will use the tools and methodology discussed in this document. 14 refs., 10 figs., 5 tabs.

Grossman, J.W.; Houser, R.M.; Erdman, W.W.

1991-01-01T23:59:59.000Z

152

Analysis of components from drip tests with ATM-10 glass  

SciTech Connect

Waste package assemblies consisting of actinide-doped West Valley ATM-10 reference glass and sensitized 304L stainless steel have been reacted with simulated repository groundwater using the Unsaturated Test Method. Analyses of surface corrosion and reaction products resulting from tests that were terminated at scheduled intervals between 13 and 52 weeks are reported. Analyses reveal complex interactions between the groundwater, the sensitized stainless steel waste form holder, and the glass. Alteration phases form that consist mainly of smectite clay, brockite, and an amorphous thorium iron titanium silicate, the latter two incorporating thorium, uranium, and possibly transuranics. The results from the terminated tests, combined with data from tests that are still ongoing, will help determine the suitability of glass waste forms in the proposed high-level repository at the Yucca Mountain Site.

Fortner, J.A.; Bates, J.K.; Gerding, T.J.

1996-09-01T23:59:59.000Z

153

Collection and Analysis of Reservoir Data from Testing and Operation...  

Open Energy Info (EERE)

Reservoir Data from Testing and Operation of the Raft River 5 MW Power Plant Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: Collection...

154

commentary and analysis: The Insignificance of Significance Testing  

Science Journals Connector (OSTI)

Null hypothesis significance testing (NHST) is commonplace in atmospheric research, despite the many criticisms that have been leveled against its use in other fields of research. NHST is used, in papers in almost every issue of the Society's ...

Neville Nicholls

2001-05-01T23:59:59.000Z

155

Thermal-hydraulic analysis of TFE verification test UFAC-1  

SciTech Connect

The Experimental Breeder Reactor No. II (EBR-II) irradiation test Uninstrumented Fueled Accelerated (UFAC)-1 of seven encapsulated thermionic test pins was analyzed with the code COBRA-SFS. The model predicted coolant and material temperatures for three conditions of interest: steady state full power, response to the unlikely loss of flow transient, and decay heat cooling by forced down flow of argon. Modeling assumptions and a summary of results are included. 1 ref., 12 figs., 3 tabs.

McWethy, L.M.; Pearce, K.L.; Rector, D.R.

1988-09-01T23:59:59.000Z

156

Identification and characterization of conservative organic tracers for use as hydrologic tracers for the Yucca Mountain site characterization project: Quality Assurance Project Plan, Revision 1; Quarterly progress report, October 1, 1993--December 31, 1993  

SciTech Connect

The purpose of this work is to identify and characterize candidate conservative organic tracers for use as hydrologic tracers for experiments to be conducted at the Yucca Mountain C-well complex. During this quarter the main effort was directed towards rewriting the quality assurance program in preparation for a review and audit by the USGS. However, due to budget constraints the review and audit were not carried out. The tracer QA plan and standard operating procedures (SOPs) were revised and copies are included in the report. Instrumental problems were encountered and corrected with the addition of new integration and sample control software. In the sampling, there was an unexplained peak in the chromatograms of the tracers being tested in the light tuff. This was not correctable and these experiments will be repeated in the next quarter.

Stetzenbach, K.J.

1993-12-13T23:59:59.000Z

157

Enthalpy and mass flowrate measurements for two-phase geothermal production by Tracer dilution techniques  

SciTech Connect

A new technique has been developed for the measurement of steam mass flowrate, water mass flowrate and total enthalpy of two-phase fluids produced from geothermal wells. The method involves precisely metered injection of liquid and vapor phase tracers into the two-phase production pipeline and concurrent sampling of each phase downstream of the injection point. Subsequent chemical analysis of the steam and water samples for tracer content enables the calculation of mass flowrate for each phase given the known mass injection rates of tracer. This technique has now been used extensively at the Coso geothermal project, owned and operated by California Energy Company. Initial validation of the method was performed at the Roosevelt Hot Springs geothermal project on wells producing to individual production separators equipped with orificeplate flowmeters for each phase.

Hirtz, Paul; Lovekin, Jim; Copp, John; Buck, Cliff; Adams, Mike

1993-01-28T23:59:59.000Z

158

Asymptotic Analysis of Cross-Hole Hydraulic Tests in Fractured Granite  

E-Print Network (OSTI)

Asymptotic Analysis of Cross-Hole Hydraulic Tests in Fractured Granite by Walter A. Illman1 hydraulic conductivity and specific storage. Introduction Well test analyses in porous and fractured for the interpretation of three-dimensional pneumatic well tests conducted in porous or fractured geologic media, which

Daniels, Jeffrey J.

159

Prioritizing JUnit Test Cases: An Empirical Assessment and Cost-Benefits Analysis  

E-Print Network (OSTI)

Prioritizing JUnit Test Cases: An Empirical Assessment and Cost-Benefits Analysis Hyunsook Do - Lincoln {dohy,grother,akinneer}@cse.unl.edu August 2, 2005 Abstract Test case prioritization provides a way to run test cases with the highest priority earliest. Numerous empirical studies have shown

Rothermel, Gregg

160

A power analysis and data acquisition system for ocean wave energy device testing  

Science Journals Connector (OSTI)

In the testing of ocean wave energy devices, the demand for a portable and robust data acquisition and electrical loading system has become apparent. This paper investigates the development of a 30kW inclusive system combining loading capabilities, real-time power analysis, and data acquisition for the testing of deployed ocean wave energy devices. Hardware results for ocean testing are included.

Ean Amon; Ted K.A. Brekken; Annette von Jouanne

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Thermal Analysis and Test Results for the Overpack of a Typical Radioactive Materials Package  

SciTech Connect

In the course of the development and certification of the 9975 Package, extensive thermal analyses were performed and the package subjected to the regulatory HAC thermal test. The results of the thermal analysis and materials tests of the cane fiberboard overpack material were evaluated in comparison with the package HAC thermal test results. The evaluation confirmed that the thermal analysis correctly predicted the performance of the 9975 in the HAC fire test. The post test examination revealed that the heat affected region of the Celotex(R) overpack correlated well with the calculated temperature distribution

Smith, A.C.

2003-05-06T23:59:59.000Z

162

Improvement of SRAM-based failure analysis calibrated IDDQ testing  

E-Print Network (OSTI)

the methodology and detail procedure of simulation based failure analysis t, echnique is explained. Chapter IV discusses the implementation of Iddq current calibration. Chapter V provides some examples supporting the failure analysis methodology . Conclusion... method that is often used to localize surface defects is by examining the hot emission spots. This process functions by detecting the excessive heat generated by the defective neighborhood during device operation. Heat sensitive liquid crystal...

Balachandran, Hariharan

1996-01-01T23:59:59.000Z

163

Materials Transportation Testing & Analysis at Sandia National Laboratories  

NLE Websites -- All DOE Office Websites (Extended Search)

Materials Characterization Materials Characterization Paul McConnell, (505) 844-8361 The purpose of hazardous and radioactive materials, i.e., mixed waste, packaging is to enable this waste type to be transported without posing a threat to the health or property of the general public. To achieve this goal, regulations have been written establishing general design requirement for such packagings. Based on these regulatory requirements, a Mixed Waste Chemical Compatibility Testing Program is intended to assure regulatory bodies that the issue of packaging compatibility towards hazardous and radioactive materials has been addressed. Such a testing program has been developed in the Transportation Systems Department at Sandia National Laboratories. Materials Characterization Capabilities

164

Advancing Reactive Tracer Methods for Measurement of Thermal Evolution in Geothermal Reservoirs: Final Report  

SciTech Connect

The injection of cold fluids into engineered geothermal system (EGS) and conventional geothermal reservoirs may be done to help extract heat from the subsurface or to maintain pressures within the reservoir (e.g., Rose et al., 2001). As these injected fluids move along fractures, they acquire heat from the rock matrix and remove it from the reservoir as they are extracted to the surface. A consequence of such injection is the migration of a cold-fluid front through the reservoir (Figure 1) that could eventually reach the production well and result in the lowering of the temperature of the produced fluids (thermal breakthrough). Efficient operation of an EGS as well as conventional geothermal systems involving cold-fluid injection requires accurate and timely information about thermal depletion of the reservoir in response to operation. In particular, accurate predictions of the time to thermal breakthrough and subsequent rate of thermal drawdown are necessary for reservoir management, design of fracture stimulation and well drilling programs, and forecasting of economic return. A potential method for estimating migration of a cold front between an injection well and a production well is through application of reactive tracer tests, using chemical whose rate of degradation is dependent on the reservoir temperature between the two wells (e.g., Robinson 1985). With repeated tests, the rate of migration of the thermal front can be determined, and the time to thermal breakthrough calculated. While the basic theory behind the concept of thermal tracers has been understood for some time, effective application of the method has yet to be demonstrated. This report describes results of a study that used several methods to investigate application of reactive tracers to monitoring the thermal evolution of a geothermal reservoir. These methods included (1) mathematical investigation of the sensitivity of known and hypothetical reactive tracers, (2) laboratory testing of novel tracers that would improve method sensitivity, (3) development of a software tool for design and interpretation of reactive tracer tests and (4) field testing of the reactive tracer temperature monitoring concept.

Mitchell A. Plummer; Carl D. Palmer; Earl D. Mattson; Laurence C. Hull; George D. Redden

2011-07-01T23:59:59.000Z

165

Passive Tracer Gas Methods to Measure  

NLE Websites -- All DOE Office Websites (Extended Search)

Experiments to Evaluate and Implement Experiments to Evaluate and Implement Passive Tracer Gas Methods to Measure Ventilation Rates in Homes Melissa Lunden, David Faulkner, Elizabeth Heredia, Sebastian Cohn, Darryl Dickerhoff, Federico Noris, Jennifer Logue, Toshifumi Hotchi, Brett Singer and Max H. Sherman Environmental Energy Technologies Division October 2012 LBNL-5984E 2 Disclaimer: This document was prepared as an account of work sponsored by the United States

166

ANALYSIS OF SOLVENT RECOVERED FROM WRIGHT INDUSTRIES, INCORPORATED TESTING  

SciTech Connect

Washington Savannah River Company (WSRC) began designing and building a Modular Caustic Side Solvent Extraction (CSSX) Unit (MCU) at the Savannah River Site (SRS) to process liquid waste for an interim period. The MCU Project Team conducted testing of the contactors, coalescers, and decanters at Wright Industries, Incorporated (WII) in Nashville, Tennessee. That testing used MCU solvent and simulated SRS dissolved salt. Because of the value of the solvent, the MCU Project wishes to recover it for use in the MCU process in the H-Tank Farm. Following testing, WII recovered approximately 62 gallons of solvent (with entrained aqueous) and shipped it to SRS. The solvent arrived in two stainless steel drums. The MCU Project requested SRNL to analyze the solvent to determine whether it is suitable for use in the MCU Process. SRNL analyzed the solvent for Isopar{reg_sign} L by Gas Chromatography--Mass Spectroscopy (GC-MS), for Modifier and BOBCalixC6 by High Pressure Liquid Chromatography (HPLC), and for Isopar{reg_sign} L-to-Modifier ratio by Fourier-Transform Infrared (FTIR) spectroscopy. They also measured the solvent density gravimetrically and used that measurement to calculate the Isopar{reg_sign} L and Modifier concentration. The conclusions from this work are: (1) The constituents of the used WII solvent are collectively low in Isopar{reg_sign} L, most likely due to evaporation. This can be easily corrected through the addition of Isopar{reg_sign} L. (2) Compared to a sample of the WII Partial Solvent (without BOBCalixC6) archived before transfer to WII, the Reworked WII Solvent showed a significant improvement (i.e., nearly doubling) in the dispersion numbers for tests with simulated salt solution and with strip acid. Hence, the presence of the plasticizer impurity has no detrimental impact on phase separation. While there are no previous dispersion tests using the exact same materials, the results seem to indicate that the washing of the solvent gives a dispersion benefit. (3) WII Solvent that underwent a cleaning cycle provides an acceptable set of cesium distribution (i.e., D) values when used in a standard Extraction, Scrub, and Strip (ESS) test.

Poirier, M; Thomas Peters, T; Fernando Fondeur, F; Samuel Fink, S

2007-01-11T23:59:59.000Z

167

Applications of radioactive tracer technology in the real-time measurement of wear and corrosion  

Science Journals Connector (OSTI)

Radioactive tracer technology has been used for many years as a tool to make highly sensitive real-time measurements of wear and corrosion. With this technique, the material of interest is tagged with radioactive isotopes through either direct activation of a relatively small number of atoms in the component itself, or implantation of radioactive isotopes. As the component wears or corrodes under test, radioactive atoms are transported from the surface in the form of wear particles or corrosion products. Wear or corrosion is measured in real-time through either interrogation of the buildup of radioactivity in the transport fluid, or by the reduction in activity of the labeled wear component. The process involves selection of an appropriate labeling technique, labeling of a component or components of interest, calibration, testing and data reduction and analysis. Although the majority of the work performed has been in the automotive engine and lubricant industry, Southwest Research Institute has recently extended the application into other fields, such as hydraulic pump wear, prosthetic hip joint wear, wear in marine engines and crude oil corrosivity. This paper discusses the various techniques employed to label components of interest, the advantages of the techniques, and gives several examples of current applications of this technology.

D.C. Eberle; C.M. Wall; M.B. Treuhaft

2005-01-01T23:59:59.000Z

168

The Thermal Test and Analysis of Envelope in Existing Buildings  

E-Print Network (OSTI)

). The thickness of polystyrene slab is in Tab .3. ICEBO2006, Shenzhen, China Building Commissioning for Energy Efficiency and Comfort, Vol. VI-5-2 The temperature and the heat flux distributing of wall are shown in Fig.2 and Fig.3. Tab. 2... The temperature distributing of wall ICEBO2006, Shenzhen, China Building Commissioning for Energy Efficiency and Comfort, Vol. VI-5-2 Fig3. The heat flux distributing of wall 5 CONCLUSIONS Through the thermal testing, calculation...

Liu, X.; Li, X.; Sun, J.; Wang, Z.

2006-01-01T23:59:59.000Z

169

Collection and Analysis of Reservoir Data from Testing and Operation of the  

Open Energy Info (EERE)

Collection and Analysis of Reservoir Data from Testing and Operation of the Collection and Analysis of Reservoir Data from Testing and Operation of the Raft River 5 MW Power Plant Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Collection and Analysis of Reservoir Data from Testing and Operation of the Raft River 5 MW Power Plant Details Activities (1) Areas (1) Regions (0) Abstract: The Raft River 5 MW power plant will be on-line some time this spring. During testing of the supply and injection system prior to plant start-up and during testing of the plant itself, data can be collected and used to calibrate computer models, refine predicted drawdowns and interference effects, monitor changing temperatures, and recalculate reservoir parameters. Analytic methods have been used during reservoir testing at Raft River to calculate reservoir coefficients. However,

170

Testing the Results of Static Worst-Case Execution-Time Analysis P. Puschner and R. Nossaly  

E-Print Network (OSTI)

Testing the Results of Static Worst-Case Execution-Time Analysis P. Puschner and R. Nossaly provided by the user. This pa- per presents a method for testing the results of static WCET analysis. The proposed test method is a black- box test method that uses a genetic algorithm (GA) for test

171

Materials Transportation Testing & Analysis at Sandia National Laboratories  

NLE Websites -- All DOE Office Websites (Extended Search)

Transportation Risk & Packaging Contacts Transportation Risk & Packaging Contacts Ken Sorenson Program Manager (505) 844-0074 kbsoren@sandia.gov David Miller Operations Manager (505) 284-2574 drmille@sandia.gov Administrative Assistant Pat Tode (505) 845-8339, 845-7800 pprippl@sandia.gov Financial Analyst Laurel Taylor (505) 845-8598 ljtaylo@sandia.gov Risk Assessment Ruth Weiner (505) 284-8406 rfweine@sandia.gov Jeremy Sprung (505) 844-0314 jlsprun@sandia.gov Doug Osborn (505) 284-6416 dosborn@sandia.gov RADTRAN Ruth Weiner (505) 284-8406 rfweine@sandia.gov GIS Mapping Doug Osborn (505) 284-6416 dosborn@sandia.gov Structural Analysis Doug Ammerman (505) 845-8158 djammer@sandia.gov Bob Kalan (505) 844-0244 rjkalan@sandia.gov Jeff Smith (505) 845-0299 jasmith@sandia.gov Thermal Analysis Carlos Lopez

172

Transient Signal Analysis (TSA) is a parametric device testing technique based on the analysis of dynamic (transient) current  

E-Print Network (OSTI)

such as primary outputs or scan-latches. Third, the supply transients potentially provide a rich source of parametAbstract Transient Signal Analysis (TSA) is a parametric device testing technique based on the analysis of dynamic (transient) current (iDDT) drawn by the core logic from the power supply pads in a CMOS

Plusquellic, James

173

Analysis of nuclear test TRINITY radiological and meteorological data  

SciTech Connect

This report describes the Weather Service Nuclear Support Office (WSNSO) analyses of the radiological and meteorological data collected for the TRINITY nuclear test. Inconsistencies in the radiological data and their resolution are discussed. The methods of normalizing the radiological data to a standard time and estimating fallout-arrival times are presented. The meteorological situations on event day and the following day are described. Comparisons of the WSNSO fallout analyses with analyses performed in the 1940s are presented. The radiological data used to derive the WSNSO 1987 fallout patterns are tabulated in appendices.

Quinn, V.E.

1987-09-01T23:59:59.000Z

174

W-1 SLSF post-test data analysis. Part 1. Thermal hydraulic analysis. [LMFBR  

SciTech Connect

Four types of tests were performed: (1) a decay heat transient test, (2) Loss-of-Piping-Integrity (LOPI) tests, (3) Boiling Window Tests (BWT), and (4) a fuel pin dryout and failure test. In addition, preliminary tests were run to check systems performance, instrumentation performance and test section heat balance. The objective of the decay heat test was to determine the decay heat transfer characteristics of fresh fuel pins with subcooled sodium. The objective of the LOPI experiments was to test the thermal behavior of fuel pins with four different fuel conditions subjected to the same transient. The transient was designed to simulate a rapid flow decrease as a result of pipe rupture followed by a reactor scram. The objective of the Boiling Window Tests was to study boiling initiation and progression of boiling within the fuel pin bundle.

Knight, D.D.

1980-10-01T23:59:59.000Z

175

Cost-effectiveness analysis of genetic testing for familial long QT syndrome in symptomatic index cases  

E-Print Network (OSTI)

Cost-Effectiveness Analysis of Genetic Testing for FamilialJ, Russell L, Weinstein M. Cost-effectiveness in health andSakowski J: An introduction to cost- effectiveness and cost-

Phillips, Kathryn A; Ackerman, M J; Sakowski, J; Berul, C I

2005-01-01T23:59:59.000Z

176

Multispecies Reactive Tracer Test in a Sand and  

E-Print Network (OSTI)

of water quality in public water systems; remediation of contaminated sites, sediments and ground water Subsurface Protection and Remediation Division National Risk Management Research Laboratory Ada, OK 74820 Agency is charged by Congress with protecting the Nation's land, air, and water resources. Under

177

Systematic Software Testing using VeriSoft: An Analysis of the 4ESS  

E-Print Network (OSTI)

Systematic Software Testing using VeriSoft: An Analysis of the 4ESS Heart­Beat Monitor P. Godefroid; Systematic Software Testing using VeriSoft: An Analysis of the 4ESS Heart­Beat Monitor Patrice Godefroid Bell­fledged programming lan­ guages such as C or C++. We report in this paper our anal­ ysis with VeriSoft of the 4ESS

Godefroid, Patrice

178

Testing the quasi-absolute method in photon activation analysis  

SciTech Connect

In photon activation analysis (PAA), relative methods are widely used because of their accuracy and precision. Absolute methods, which are conducted without any assistance from calibration materials, are seldom applied for the difficulty in obtaining photon flux in measurements. This research is an attempt to perform a new absolute approach in PAA - quasi-absolute method - by retrieving photon flux in the sample through Monte Carlo simulation. With simulated photon flux and database of experimental cross sections, it is possible to calculate the concentration of target elements in the sample directly. The QA/QC procedures to solidify the research are discussed in detail. Our results show that the accuracy of the method for certain elements is close to a useful level in practice. Furthermore, the future results from the quasi-absolute method can also serve as a validation technique for experimental data on cross sections. The quasi-absolute method looks promising.

Sun, Z. J. [Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave., Argonne, IL 60439 (United States); Wells, D. [Physics Department, South Dakota School of Mines and Technology, 501 E. Saint Joseph St. Rapid City, SD 57701 (United States); Starovoitova, V.; Segebade, C. [Idaho Accelerator Center, Idaho State University, 921 S. 8th Ave. Pocatello, ID 83209 (United States)

2013-04-19T23:59:59.000Z

179

Finite Element Analysis of a Composite Semi-Span Test Article With and Without Discrete Damage  

Science Journals Connector (OSTI)

AS&M, Inc. performed finite element analysis, with and without discrete damage, of a composite semi-span test article that represents the Boeing 220-passenger transport aircraft composite semi-span test article. A NASTRAN bulk data file and drawings ...

Lovejoy Andrew E.

2000-08-01T23:59:59.000Z

180

Using Thermally-Degrading, Partitioning, and Nonreactive Tracers...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Partitioning, and Nonreactive Tracers to Determine Temperature Distribution and FractureHeat Transfer Surface Area in Geothermal Reservoirs Using Thermally-Degrading,...

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Integrated Approach to Use Natural Chemical and Isotopic Tracers...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Integrated Approach to Use Natural Chemical and Isotopic Tracers to Estimate Fracture Spacing and Surface Area in EGS Systems Integrated Approach to Use Natural Chemical and...

182

Using Thermally-Degrading, Partitioning, and Nonreactive Tracers...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Partitioning, and Nonreactive Tracers to Determine Temperature Distribution and FractureHeat Transfer Surface Area in Geothermal Reservoirs Track Name May 19, 2010 This...

183

Use of Tracers to Characterize Fractures in Engineered Geothermal...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Fractures in Engineered Geothermal Systems Project Objectives: Measure interwell fracture surface area and fracture spacing using sorbing tracers; measure fracture surface...

184

Tracer Methods for Characterizing Fracture Creation in Enhanced...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

75 4.6.6 Tracer Methods for Characterizing Fracture Creation in Enhanced Geothermal Systems Presentation Number: 033 Investigator: Rose, Peter (University of Utah) Objectives: To...

185

Quantum Dot Tracers for Use in Engineered Geothermal  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

tracers, colloidal quantum dots, that offer great promise for use in characterizing fracture networks in EGS reservoirs. Since the wavelength of fluorescence (color) of these...

186

Verification of Geothermal Tracer Methods in Highly Constrained...  

Open Energy Info (EERE)

tracers of varying rates of molecular diffusion. Exchange of heat energy between fracture and bulk rock (matrix) behaves in the same manner as the exchange of dissolved mass....

187

Tracer Methods for Characterizing Fracture Stimulation in Enhanced...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

80 4.6.7 Tracer Methods for Characterizing Fracture Stimulation in Enhanced Geothermal Systems (EGS) Presentation Number: 034 Investigator: Pruess, Karsten (Lawrence Berkeley...

188

Integrated Approach to Use Natural Chemical and Isotopic Tracers...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Approach to Use Natural Chemical and Isotopic Tracers to Estimate Fracture Spacing and Surface Area in EGS Systems B. Mack Kennedy (Presenter) and H. H. Liu Lawrence Berkeley...

189

Tracer Methods for Characterizing Fracture Stimulation in Engineered...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Tracer Methods for Characterizing Fracture Stimulation in Engineered Geothermal Systems (EGS) Karsten Pruess Lawrence Berkeley National Lab. May 19, 2010 This presentation does not...

190

Novel Multidimensional Tracers for Geothermal Inter-Well Diagnostics  

Energy.gov (U.S. Department of Energy (DOE))

Novel Multidimensional Tracers for Geothermal Inter-Well Diagnostics presentation at the April 2013 peer review meeting held in Denver, Colorado.

191

Analysis of ER-12-3 FY 2005 Hydrologic Testing, Nevada Test Site, Nye County, Nevada, Rev. No.: 0  

SciTech Connect

This report documents the analysis of data collected for ER-12-3 during the fiscal year (FY) 2005 Rainier Mesa/Shoshone Mountain well development and hydraulic testing program (herein referred to as the ''testing program''). Well ER-12-3 was constructed and tested as a part of the Corrective Action Unit (CAU) 99, Rainier Mesa/Shoshone Mountain, Phase I drilling program during FY 2005. These activities were conducted on behalf of the U.S. Department of Energy (DOE), National Nuclear Security Administration Nevada Site Office (NNSA/NSO) for the Underground Test Area (UGTA) Project. As shown on Figure 1-1, ER-12-3 is located in central Rainier Mesa, in Area 12 of the Nevada Test Site (NTS). Figure 1-2 shows the well location in relation to the tunnels under Rainier Mesa. The well was drilled to a total depth (TD) of 4,908 feet (ft) below ground surface (bgs) (surface elevation 7,390.8 ft above mean sea level [amsl]) in the area of several tunnels mined into Rainier Mesa that were used historically for nuclear testing (NNSA/NSO, 2006). The closest nuclear test to the well location was YUBA (U-12b.10), conducted in the U-12b Tunnel approximately 1,529 ft northeast of the well site. The YUBA test working point elevation was located at approximately 6,642 ft amsl. The YUBA test had an announced yield of 3.1 kilotons (kt) (SNJV, 2006b). The purpose of this hydrogeologic investigation well is to evaluate the deep Tertiary volcanic section below the tunnel level, which is above the regional water table, and to provide information on the section of the lower carbonate aquifer-thrust plate (LCA3) located below the Tertiary volcanic section (SNJV, 2005b). Details on the drilling and completion program are presented in the ''Completion Report for Well ER-12-3 Corrective Action Unit 99: Rainier Mesa - Shoshone Mountain'' (NNSA/NSO, 2006). Development and hydraulic testing of ER-12-3 took place between June 3 and July 22, 2005. The development objectives included removing residual drilling fluids and improving the hydraulic connection of the well within the lower carbonate aquifer (LCA). The hydraulic testing objectives focused on obtaining further hydrogeologic, geochemical, and radiochemical data for the site. Details on the data collected during the testing program are presented in the report ''Rainier Mesa Well ER-12-3 Data Report for Well Development and Hydraulic Testing'' (SNJV, 2006b). Participants in ER-12-3 testing activities were: Stoller-Navarro Joint Venture (SNJV), Bechtel Nevada (BN), Desert Research Institute (DRI), Los Alamos National Laboratory (LANL), Lawrence Livermore National Laboratory (LLNL), and the U.S. Geological Survey (USGS). Stoller-Navarro Joint Venture served as the lead contractor responsible for providing site supervision, development and testing services, and waste management services; BN provided construction and engineering support services; DRI provided well logging services and participated in groundwater sampling and laboratory analyses; LANL and LLNL participated in groundwater sampling and laboratory analyses; and the USGS performed laboratory analyses. Analyses of data from the ER-12-3 testing program presented in this document were performed by SNJV except as noted.

Bill Fryer

2006-07-01T23:59:59.000Z

192

Statistical Analysis of Spatial Point Patterns on Deep Seismic Reflection Data: A Preliminary Test  

E-Print Network (OSTI)

Statistical Analysis of Spatial Point Patterns on Deep Seismic Reflection Data: A Preliminary Test analysis may provide a new tool for analysing spatial variations in reflection data. Key Words: Deep The purpose of this paper is to present spatial point pattern analyses of seismic reflection data in an effort

Schmidt, Volker

193

An Empirical Framework for Comparing Effectiveness of Testing and Property-Based Formal Analysis  

E-Print Network (OSTI)

and practise of formal analysis and on the other hand, by a need for improved quality assurance techniques. 1. INTRODUCTION Testing and formal analysis are two complementary qual- ity assurance techniques-condition, a loop invariant, a class representation invariant, an interface us- age rule, or a temporal property

Bradbury, Jeremy S.

194

An Empirical Framework for Comparing Effectiveness of Testing and Property-Based Formal Analysis  

E-Print Network (OSTI)

in the theory and practise of formal analysis and on the other hand, by a need for improved quality assurance. 1. INTRODUCTION Testing and formal analysis are two complementary qual- ity assurance techniques of a method pre-condition, a loop invariant, a class representation invariant, an interface us- age rule

Cordy, James R.

195

Coupled Analysis of Change in Fracture Permeability during the Cooling Phase of the Yucca Mountain Drift Scale Test  

E-Print Network (OSTI)

mechanical analysis of the Yucca Mountain Drift Scale Test scale heater test at Yucca Mountain, Nevada, USA. In.t J.and Cooling at the Yucca Mountain Drift Scale Test. In.t J.

Rutqvist, J.

2008-01-01T23:59:59.000Z

196

ANALYSIS OF SAFETY RELIEF VALVE PROOF TEST DATA TO OPTIMIZE LIFECYCLE MAINTENANCE COSTS  

SciTech Connect

Proof test results were analyzed and compared with a proposed life cycle curve or hazard function and the limit of useful life. Relief valve proof testing procedures, statistical modeling, data collection processes, and time-in-service trends are presented. The resulting analysis of test data allows for the estimation of the PFD. Extended maintenance intervals to the limit of useful life as well as methodologies and practices for improving relief valve performance and reliability are discussed. A generic cost-benefit analysis and an expected life cycle cost reduction concludes that $90 million maintenance dollars might be avoided for a population of 3000 valves over 20 years.

Gross, Robert; Harris, Stephen

2007-08-01T23:59:59.000Z

197

Elastic-plastic failure analysis of pressure burst tests of thin toroidal shells  

SciTech Connect

This paper provides a comparison between test and analysis results for bursting of thin toroidal shells. Testing was done by pressurizing two toroidal shells until failure by bursting. An analytical criterion for bursting is developed based on good agreement between structural instability predicted by large strain-large displacement elastic-plastic finite element analysis and observed burst pressure obtained from test. The failures were characterized by loss of local stability of the membrane section of the shells consistent with the predictions from the finite element analysis. Good agreement between measured and predicted burst pressure suggests that incipient structural instability as calculated by an elastic-plastic finite element analysis is a reasonable way to calculate the bursting pressure of thin membrane structures.

Jones, D.P.; Holliday, J.E.; Larson, L.D. [Bechtel Bettis, Inc., West Mifflin, PA (United States). Bettis Atomic Power Lab.

1999-05-01T23:59:59.000Z

198

Hypothetical accident condition thermal analysis and testing of a Type B drum package  

SciTech Connect

A thermophysical property model developed to analytically determine the thermal response of cane fiberboard when exposed to temperatures and heat fluxes associated with the 10 CFR 71 hypothetical accident condition (HAC) has been benchmarked against two Type B drum package fire test results. The model 9973 package was fire tested after a 30 ft. top down drop and puncture, and an undamaged model 9975 package containing a heater (21W) was fire tested to determine content heat source effects. Analysis results using a refined version of a previously developed HAC fiberboard model compared well against the test data from both the 9973 and 9975 packages.

Hensel, S.J.; Alstine, M.N. van; Gromada, R.J. [Westinghouse Savannah River Co., Aiken, SC (United States)

1995-11-01T23:59:59.000Z

199

Hypothetical accident condition thermal analysis and testing of a Type B drum package  

SciTech Connect

A thermophysical property model developed to analytically determine the thermal response of cane fiberboard when exposed to temperatures and heat fluxes associated with the 10 CFR 71 hypothetical accident condition (HAC) has been benchmarked against two Type B drum package fire test results. The model 9973 package was fire tested after a 30 ft. top down drop and puncture, and an undamaged model 9975 package containing a heater (21W) was fire tested to determine content heat source effects. Analysis results using a refined version of a previously developed HAC fiberboard model compared well against the test data from both the 9973 and 9975 packages.

Hensel, S.J.; Alstine, M.N. Van; Gromada, R.J.

1995-07-01T23:59:59.000Z

200

Preliminary Investigation of Tracer Gas Reaeration Method for Shallow Bays  

E-Print Network (OSTI)

was used with propane for the tracer gas and Rhodamine-WT, a fluorescent dye, for the "conservative" tracer. The propane was injected through porous tile diffusers, and the dye was released simultaneously. The propane acts as a model for the surface...

Baker, Sarah H.; Holley, Edward R.

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Parallel Finite Element Simulation of Tracer Injection in Oil Reservoirs  

E-Print Network (OSTI)

Parallel Finite Element Simulation of Tracer Injection in Oil Reservoirs Alvaro L.G.A. Coutinho In this work, parallel finite element techniques for the simulation of tracer injection in oil reservoirs. Supercomputers have made it possible to consider global reservoir effects which can not be represented using

Coutinho, Alvaro L. G. A.

202

MIPAS observations of organic tracers for biomass burning and intercontinental transport  

E-Print Network (OSTI)

MIPAS observations of organic tracers for biomass burning and intercontinental transport observations of organic tracers for biomass burning and intercontinental transport Introduction Suite - Oxford - September 2009 #12;MIPAS observations of organic tracers for biomass burning

203

Methods and systems using encapsulated tracers and chemicals for reservoir interrogation and manipulation  

DOE Patents (OSTI)

An apparatus, method, and system of reservoir interrogation. A tracer is encapsulating in a receptacle. The receptacle containing the tracer is injected into the reservoir. The tracer is analyzed for reservoir interrogation.

Roberts, Jeffery; Aines, Roger D; Duoss, Eric B; Spadaccini, Christopher M

2014-11-04T23:59:59.000Z

204

Standard test methods for chemical, mass spectrometric, spectrochemical, nuclear, and radiochemical analysis of uranium hexafluoride  

E-Print Network (OSTI)

1.1 These test methods cover procedures for subsampling and for chemical, mass spectrometric, spectrochemical, nuclear, and radiochemical analysis of uranium hexafluoride UF6. Most of these test methods are in routine use to determine conformance to UF6 specifications in the Enrichment and Conversion Facilities. 1.2 The analytical procedures in this document appear in the following order: Note 1Subcommittee C26.05 will confer with C26.02 concerning the renumbered section in Test Methods C761 to determine how concerns with renumbering these sections, as analytical methods are replaced with stand-alone analytical methods, are best addressed in subsequent publications. Sections Subsampling of Uranium Hexafluoride 7 - 10 Gravimetric Determination of Uranium 11 - 19 Titrimetric Determination of Uranium 20 Preparation of High-Purity U3O 8 21 Isotopic Analysis 22 Isotopic Analysis by Double-Standard Mass-Spectrometer Method 23 - 29 Determination of Hydrocarbons, Chlorocarbons, and Partially Substitut...

American Society for Testing and Materials. Philadelphia

2011-01-01T23:59:59.000Z

205

Full-length high-temperature severe fuel damage test No. 2. Final safety analysis  

SciTech Connect

Hazardous conditions associated with performing the Full-Length High- Temperature (FLHT). Severe Fuel Damage Test No. 2 experiment have been analyzed. Major hazards that could cause harm or damage are (1) radioactive fission products, (2) radiation fields, (3) reactivity changes, (4) hydrogen generation, (5) materials at high temperature, (6) steam explosion, and (7) steam pressure pulse. As a result of this analysis, it is concluded that with proper precautions the FLHT- 2 test can be safely conducted.

Hesson, G.M.; Lombardo, N.J.; Pilger, J.P.; Rausch, W.N.; King, L.L.; Hurley, D.E.; Parchen, L.J.; Panisko, F.E.

1993-09-01T23:59:59.000Z

206

Novel Multi-dimensional Tracers for Geothermal Inter-wall Diagnostics...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Partitioning, and Nonreactive Tracers to Determine Temperature Distribution and FractureHeat Transfer Surface Area in Geothermal Reservoirs Use of Tracers to Characterize...

207

Design and analysis of experiments testing for biodiversity effects in ecology  

E-Print Network (OSTI)

Design and analysis of experiments testing for biodiversity effects in ecology R. A. Baileya is that a nested family of plausible models is fitted. The results of three experiments suggest that biodiversity are discussed. Keywords: Biodiversity, Design of experiments, Family of models, Hasse diagram 2008 MSC: 62K99

208

ANALYSIS OF HIGH PRESSURE TESTS ON WET GAS FLOW METERING WITH A VENTURI METER  

E-Print Network (OSTI)

ANALYSIS OF HIGH PRESSURE TESTS ON WET GAS FLOW METERING WITH A VENTURI METER P. Gajan , Q, 64018 Pau cedex, France pierre.gajan@onera.fr Abstract This work deals with the flow metering of wet gas on the CEESI facilities are presented. They are performed at 75 bars with 0.6 beta ratio Venturi meter

209

Computational Analysis of a 3D Hypersonic Intake for Experimental Testing at Mach 8  

E-Print Network (OSTI)

as computational analysis of a complete scramjet demonstrator model has been initiated. The experimental tests technology concerning design and overall vehicle concept. In this context only the use of a scramjet within the German Research Training Group "Aerothermodynamic Design of a Scramjet Engine for Future Space

210

Tracer Gas Transport under Mixed Convection Conditions in an Experimental  

NLE Websites -- All DOE Office Websites (Extended Search)

Tracer Gas Transport under Mixed Convection Conditions in an Experimental Tracer Gas Transport under Mixed Convection Conditions in an Experimental Atrium: Comparison Between Experiments and CFD Predictions Title Tracer Gas Transport under Mixed Convection Conditions in an Experimental Atrium: Comparison Between Experiments and CFD Predictions Publication Type Journal Article Year of Publication 2006 Authors Jayaraman, Buvaneswari, Elizabeth U. Finlayson, Michael D. Sohn, Tracy L. Thatcher, Phillip N. Price, Emily E. Wood, Richard G. Sextro, and Ashok J. Gadgil Journal Atmospheric Environment Volume 40 Start Page Chapter Pagination 5236-5250 Keywords airflow and pollutant transport group, atria, indoor airflow and pollutant transport, indoor environment department, indoor pollutant dispersion, mixed convection, turbulence model

211

Uncertainties in Air Exchange using Continuous-Injection, Long-Term Sampling Tracer-Gas Methods  

SciTech Connect

The PerFluorocarbon Tracer (PFT) method is a low-cost approach commonly used for measuring air exchange in buildings using tracer gases. It is a specific application of the more general Continuous-Injection, Long-Term Sampling (CILTS) method. The technique is widely used but there has been little work on understanding the uncertainties (both precision and bias) associated with its use, particularly given that it is typically deployed by untrained or lightly trained people to minimize experimental costs. In this article we will conduct a first-principles error analysis to estimate the uncertainties and then compare that analysis to CILTS measurements that were over-sampled, through the use of multiple tracers and emitter and sampler distribution patterns, in three houses. We find that the CILTS method can have an overall uncertainty of 10-15percent in ideal circumstances, but that even in highly controlled field experiments done by trained experimenters expected uncertainties are about 20percent. In addition, there are many field conditions (such as open windows) where CILTS is not likely to provide any quantitative data. Even avoiding the worst situations of assumption violations CILTS should be considered as having a something like a ?factor of two? uncertainty for the broad field trials that it is typically used in. We provide guidance on how to deploy CILTS and design the experiment to minimize uncertainties.

Sherman, Max H.; Walker, Iain S.; Lunden, Melissa M.

2013-12-01T23:59:59.000Z

212

Primordial black holes as biased tracers  

E-Print Network (OSTI)

Primordial black holes (PBHs) are theoretical black holes which may be formed during the radiation dominant era and, basically, caused by the gravitational collapse of radiational overdensities. It has been well known that in the context of the structure formation in our Universe such collapsed objects, e.g., halos/galaxies, could be considered as bias tracers of underlying matter fluctuations and the halo/galaxy bias has been studied well. Employing a peak-background split picture which is known to be a useful tool to discuss the halo bias, we consider the large scale clustering behavior of the PBH and propose an almost mass-independent constraint to the scenario that dark matters (DMs) consist of PBHs. We consider the case where the statistics of the primordial curvature perturbations is almost Gaussian, but with small local-type non-Gaussianity. If PBHs account for the DM abundance, such a large scale clustering of PBHs behaves as nothing but the matter isocurvature perturbation and constrained strictly by...

Tada, Yuichiro

2015-01-01T23:59:59.000Z

213

Tracer stirring around a meddy: The formation of layering  

Science Journals Connector (OSTI)

The dynamics of the formation of layering surrounding meddy-like vortex lenses is investigated using Primitive Equation (PE), Quasi Geostrophic (QG) and tracer advection models. Recent in situ data inside a meddy confirmed the formation of highly ...

Thomas Meunier; Claire Mnesguen; Richard Schopp; Sylvie Le Gentil

214

Tracer method in numerical simulation of combustion processes  

Science Journals Connector (OSTI)

Fuel-rich laminar flat hydrogen-methane-air flames are studied numerically using the tracer method. It is found that, in the near-limit mixture, hydrogen has an advantage in the oxidation by oxygen. As the sto...

V. A. Bunev; A. V. Baklanov; I. G. Namyatov

2007-11-01T23:59:59.000Z

215

The bias of the submillimetre galaxy population: SMGs are poor tracers of the most massive structures in the z ~ 2 Universe  

E-Print Network (OSTI)

It is often claimed that overdensities of (or even individual bright) submillimetre-selected galaxies (SMGs) trace the assembly of the most-massive dark matter structures in the Universe. We test this claim by performing a counts-in-cells analysis of mock SMG catalogues derived from the Bolshoi cosmological simulation to investigate how well SMG associations trace the underlying dark matter structure. We find that SMGs exhibit a relatively complex bias: some regions of high SMG overdensity are underdense in terms of dark matter mass, and some regions of high dark matter overdensity contain no SMGs. Because of their rarity, Poisson noise causes scatter in the SMG overdensity at fixed dark matter overdensity. Consequently, rich associations of less-luminous, more-abundant galaxies (i.e. Lyman-break galaxy analogues) trace the highest dark matter overdensities much better than SMGs. Even on average, SMG associations are relatively poor tracers of the most significant dark matter overdensities because of `downsiz...

Miller, Tim B; Chapman, Scott C; Behroozi, Peter S

2015-01-01T23:59:59.000Z

216

Resuspension rates from aged inert-tracer sources  

SciTech Connect

Wind-caused particle resuspension rates were investigated with molybdenum tracers at two circular resuspension sites in the Hanford area. The tracer particles were calcium molybdate. The radii of each circular tracer-source area were 22.9 m and 29.9 m respectively for tracer deposited on 2 October 1973 and 29 May 1979. Resuspension rates were investigated by sampling resuspended tracer with air sampling equipment mounted as a function of height on a centrally located sampling tower at each site. Sampling equipment was operated as a function of wind speed increments in order to investigate resuspension rates, wind speed dependencies of resuspension rates, and for subsequent comparisons of resuspension rate changes as a function of time for constant wind speed ranges. Experimental results are reported for measurements over several years. Resuspension rates ranged from about 10/sup -13/ to 10/sup -6/ fraction of the tracer source resuspended per second. Resuspension rates tended to increase with increasing wind speed. At one investigation site, resuspension rates were nearly constant, except for seasonal variations, for a four-year time period. Resuspension rates appear higher in the autumn than in the spring and summer.

Sehmel, G.A.

1982-11-01T23:59:59.000Z

217

SAFETY ANALYSIS FOR TANK 241-AZ-101 MIXER PUMP PROCESS TEST  

SciTech Connect

This document contains the completed safety analysis which establishes the safety envelope for performing the mixer pump process test in Tank 241-AZ-101. This process test is described in TF-210-OTP-001. All equipment necessary for the mixer pump test has been installed by Project W-151. The purpose of this document is to describe and analyze the mixer pump test for Aging Waste Facility (AWF) Tank 241-AZ-101 and to address the 'yes/maybe' responses marked for evaluation questions identified in Unreviewed Safety Question Evaluation (USQE) TF-94-0266. The scope of this document is limited to the performance of the mixer pump test for Tank 241-AZ-101. Unreviewed Safety Question Determination (USQD) TF-96-0018 verified that the installation of two mixer pumps into Tank 241-AZ-101 was within the current Tank Waste Remediation System (TWRS) Authorization Basis. USQDs TF-96-0461, TF-96-0448, and TF-96-0805 verified that the installation of the in-tank video camera, thermocouples, and Ultrasonic Interface Level Analyzer (URSILLA), respectively, were within the current TWRS Authorization Basis. USQD TF-96-1041 verified that the checkout testing of the installed equipment was within the current TWRS Authorization Basis. Installation of the pumps and equipment has been completed. An evaluation of safety considerations associated with operation of the mixer pumps for the mixer pump test is provided in this document. This document augments the existing AWF authorization basis as defined in the Interim Safety Basis (Stahl 1997), and as such, will use the existing Interim Operational Safety Requirements (IOSRs) of Heubach 1996 to adequately control the mixer pump test. The hazard and accident analysis is limited to the scope and impact of the mixer pump test, and therefore does not address hazards already addressed by the current AWF authorization basis. This document does not evaluate removal of the mixer pumps. Safety considerations for removal of the pumps will be addressed by separate safety documentation once that portion of the mission is defined. The mixer pump test has been evaluated to cover the use of either the existing ventilation system (241-A-702) or the ventilation system upgrade provided by Project W-030. Analysis of Project W-030 is outside of the scope of this document and is addressed in HNF-SD-WM-SARR-039 (Draft) which, should the W-030 system be in service at the time of the mixer pump test, will have been approved and made a part of the TWRS authorization basis. The test will use two high-capacity mixer pumps in various configurations and modes to demonstrate solids mobilization of waste in Tank 241-AZ-101. The information and experience gained during the test will provide data for comparison with sludge mobilization prediction models; provide data to estimate the number, location, and cycle times of the mixer pumps; and provide indication of the effects of mixer pump operation on the AWF tank systems and components. The slurry produced will be evaluated for future pretreatment processing. This process test does not transfer waste from the tank; the waste is mixed and confined within the existing system. At the completion of the mixer pump test, the mixer pumps will be stopped and normal tank operations, maintenance, and surveillance will continue. Periodic rotation of the mixer pumps and motor shafts, along with bearing greasing, is required to maintain the pumps following the mixer pump test.

HAMMOND DM; HARRIS JP; MOUETTE P

1997-06-09T23:59:59.000Z

218

Performance testing and economic analysis of a photovoltaic flywheel energy storage and conversion system  

SciTech Connect

A subscale prototype of a flywheel energy storage and conversion system for use with photovoltaic power systems of residential and intermediate load-center size has been designed, built and tested by MIT Lincoln Laboratory. System design, including details of such key components as magnetic bearings, motor generator, and power conditioning electronics, is described. Performance results of prototype testing are given and indicate that this system is the equal of or superior to battery-inverter systems for the same application. Results of cost and user-worth analysis show that residential systems are economically feasible in stand-alone and in some utility-interactive applications.

Hay, R.D.; Millner, A.R.; Jarvinen, P.O.

1980-01-01T23:59:59.000Z

219

Transient Signal Analysis is a digital device testing method that is based on the analysis of volt-age transients at multiple test points. In this paper, the power supply transient signals from sim-  

E-Print Network (OSTI)

in 8-bit Multiplier Simulation Experiments Investigating the Use of Power Supply Transient SigAbstract Transient Signal Analysis is a digital device testing method that is based on the analysis of volt- age transients at multiple test points. In this paper, the power supply transient signals from

Plusquellic, James

220

Analysis of Operation TEAPOT nuclear test BEE radiological and meteorological data  

SciTech Connect

This report describes the Weather Service Nuclear Support Office (WSNSO) analyses of the radiological and meteorological data collected for the BEE nuclear test of Operation TEAPOT. Inconsistencies in the radiological data and their resolution are discussed. The methods of normalizing the radiological data to a standard time and estimating fallout-arrival times are presented. The meteorological situations on event day and the following day are described. A comparison of the WSNSO fallout analysis with an analysis performed in the 1950's is presented. The radiological data used to derive the WSNSO fallout pattern are tabulated in an appendix.

Quinn, V.E.

1986-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Analysis of operation TEAPOT nuclear test ZUCCHINI radiological and meterological data  

SciTech Connect

This report describes the Weather Service Nuclear Support Office (WSNSO) analyses of the radiological and meteorological data collected for the ZUCCHINI nuclear test of Operation TEAPOT. Inconsistencies in the radiological data and their resolution are discussed. The methods of normalizing the radiological data to a standard time and estimating fallout-arrival times are presented. The meteorological situations on event day and the following day are described. A comparison of the WSNSO fallout analysis with an analysis performed in the 1950's is presented. The radiological data used to derive the WSNSO 1986 fallout pattern are tabulated in an appendix.

Quinn, V.E.

1987-03-01T23:59:59.000Z

222

NREL: Photovoltaics Research - Testing and Analysis to Advance R&D  

NLE Websites -- All DOE Office Websites (Extended Search)

Testing and Analysis to Advance R&D Testing and Analysis to Advance R&D Get the Adobe Flash Player to see this video. Text Alternative NREL has capabilities and experts in measurements, characterization, reliability, engineering, scientific computing, and theory to support photovoltaic (PV) research and development (R&D) across a range of conversion technologies and scales. Conversion technologies include the primary areas of silicon, polycrystalline thin films (cadmium telluride [CdTe], copper indium gallium diselenide [CIGS]), III-V-based multijunctions, and organic PV. And scales of interest range from materials, to cells, modules, and systems. Measurements and Characterization Photo of a hand holding tweezers pinching a square wafer that is striped gold and black. We provide a huge range of techniques for measuring and characterizing PV

223

Time series analysis of AERI radiances for GCM testing and improvement  

NLE Websites -- All DOE Office Websites (Extended Search)

Time series analysis of AERI radiances for GCM testing and improvement Time series analysis of AERI radiances for GCM testing and improvement Dykema, John Harvard University Leroy, Stephen Harvard University Anderson, James Harvard University Tobin, David University of Wisconsin-Madison Knuteson, Robert University Of Wisconsin Revercomb, Henry University of Wisconsin-Madison Category: Radiation High resolution infrared radiances measured by the Atmospheric Emitted Radiance Interferometer (AERI) contained detailed information about the structure and dynamics of temperature, water vapor, and clouds below 3 km. Infrared radiances also contain the signature of radiative forcing by well-mixed gases that constitutes the greenhouse effect. Direct comparison of these radiance observations to similar radiances calculated from output

224

Tank 241-AZ-101 Mixer Pump Test Vapor Sampling and Analysis Plan  

SciTech Connect

This sampling and analysis plan (SAP) identifies characterization objectives pertaining to sample collection, laboratory analytical evaluation, and reporting requirements for vapor samples obtained during the operation of mixer pumps in tank 241-AZ-101. The primary purpose of the mixer pump test (MPT) is to demonstrate that the two 300 horsepower mixer pumps installed in tank 241-AZ-101 can mobilize the settled sludge so that it can be retrieved for treatment and vitrification Sampling will be performed in accordance with Tank 241-AZ-101 Mixer Pump Test Data Quality Objective (Banning 1999) and Data Quality Objectives for Regulatory Requirements for Hazardous and Radioactive Air Emissions Sampling and Analysis (Mulkey 1999). The sampling will verify if current air emission estimates used in the permit application are correct and provide information for future air permit applications.

TEMPLETON, A.M.

2000-01-31T23:59:59.000Z

225

HP-41CV program eases IPR (inflow performance relationship) test analysis  

SciTech Connect

The inflow performance relationship (IPR) of a flowing or pumping well relates the down-hole pressure to the flow rate. The calculator program discussed, IPR, will simplify the analysis of the collected data and produce an IPR curve. Such analysis can then be used to (1) establish the effective reservoir pressure for the well without the costly shut-in time required for a buildup test; (2) establish the well's maximum production rate and thereby determine the need to improve the well's inflow capability or upgrade its production equipment; (3) evaluate the effectiveness of a stimulation treatment independent of down-hole equipment; (4) establish design criteria for the tubing string, down-hole pump, and surface production equipment; and (5) identify certain complex reservoir conditions such as high pressure water stringers, with simple inexpensive tests.

Fox, M.J.

1984-07-09T23:59:59.000Z

226

Results of the analysis of the blood lymphocyte proliferation test data from the National Jewish Center  

SciTech Connect

A new approach to the analysis of the blood beryllium lymphocyte proliferation test (LPT) was presented to the Committee to Accredit Beryllium Sensitization Testing-Beryllium Industry Scientific Advisory Committee in April, 1994. Two new outlier resistant methods were proposed for the analysis of the blood LPT and compared with the approach then in use by most labs. The National Jewish Center (NJC) agreed to provide data from a study that was underway at that time. Three groups of LPT data are considered: (1) a sample of 168 beryllium exposed (BE) workers and 20 nonexposed (NE) persons; (2) 25 unacceptable LPTs, and (3) 32 abnormal LPTs for individuals known to have chronic beryllium disease (CBD). The LAV method described in ORNL-6818 was applied to each LPT. Graphical and numerical summaries similar to those presented for the ORISE data are given. Three methods were used to identify abnormal LPTs. All three methods correctly identified the 32 known CBD cases as abnormal.

From, E.L. [Oak Ridge National Lab., TN (United States). Mathematical Sciences Section; Newman, L.S.; Mroz, M.M. [National Jewish Center for Immunology and Respiratory Medicine, Denver, CO (United States)

1997-03-01T23:59:59.000Z

227

Testing and analysis of the Semiscale Mod-1 heater rod design  

SciTech Connect

The use of electrically heated nuclear fuel rod simulators in the Semiscale Program is traced from a historical viewpoint. The design of the Semiscale Mod-1 electrical heater rod and core simulator is discussed. Heater rod thermal response during transient thermal-hydraulic depressurization experiments conducted in the Mod-1 system, and analysis techniques and tests conducted to help quantify heater rod characteristics and behavior are presented.

Larson, T.K.

1980-01-01T23:59:59.000Z

228

Statistical Analysis of Transient Cycle Test Results in a 40 CFR Part 1065 Engine Dynamometer Test Cell  

Energy.gov (U.S. Department of Energy (DOE))

Effects of "new" engine testing procedures (40 CFR Part 1065) with respect to repeatability of transient engine dynamometer tests were examined as well as the effects of calibration and measurement methods

229

Fabrication, testing, and analysis of anisotropic carbon/glass hybrid composites: volume 1: technical report.  

SciTech Connect

Anisotropic carbon/glass hybrid composite laminates have been fabricated, tested, and analyzed. The laminates have been fabricated using vacuum-assisted resin transfer molding (VARTM). Five fiber complexes and a two-part epoxy resin system have been used in the study to fabricate panels of twenty different laminate constructions. These panels have been subjected to physical testing to measure density, fiber volume fraction, and void fraction. Coupons machined from these panels have also been subjected to mechanical testing to measure elastic properties and strength of the laminates using tensile, compressive, transverse tensile, and in-plane shear tests. Interlaminar shear strength has also been measured. Out-of-plane displacement, axial strain, transverse strain, and inplane shear strain have also been measured using photogrammetry data obtained during edgewise compression tests. The test data have been reduced to characterize the elastic properties and strength of the laminates. Constraints imposed by test fixtures might be expected to affect measurements of the moduli of anisotropic materials; classical lamination theory has been used to assess the magnitude of such effects and correct the experimental data for the same. The tensile moduli generally correlate well with experiment without correction and indicate that factors other than end constraints dominate. The results suggest that shear moduli of the anisotropic materials are affected by end constraints. Classical lamination theory has also been used to characterize the level of extension-shear coupling in the anisotropic laminates. Three factors affecting the coupling have been examined: the volume fraction of unbalanced off-axis layers, the angle of the off-axis layers, and the composition of the fibers (i.e., carbon or glass) used as the axial reinforcement. The results indicate that extension/shear coupling is maximized with the least loss in axial tensile stiffness by using carbon fibers oriented 15{sup o} from the long axis for approximately two-thirds of the laminate volume (discounting skin layers), with reinforcing carbon fibers oriented axially comprising the remaining one-third of the volume. Finite element analysis of each laminate has been performed to examine first ply failure. Three failure criteria--maximum stress, maximum strain, and Tsai-Wu--have been compared. Failure predicted by all three criteria proves generally conservative, with the stress-based criteria the most conservative. For laminates that respond nonlinearly to loading, large error is observed in the prediction of failure using maximum strain as the criterion. This report documents the methods and results in two volumes. Volume 1 contains descriptions of the laminates, their fabrication and testing, the methods of analysis, the results, and the conclusions and recommendations. Volume 2 contains a comprehensive summary of the individual test results for all laminates.

Wetzel, Kyle K. (Wetzel Engineering, Inc. Lawrence, Kansas); Hermann, Thomas M. (Wichita state University, Wichita, Kansas); Locke, James (Wichita state University, Wichita, Kansas)

2005-11-01T23:59:59.000Z

230

Rotor dynamic analysis of GCEP (Gas Centrifuge Enrichment Plant) Tails Withdrawal Test Facility AC-12 compressor  

SciTech Connect

The reliable operation of the centrifugal compressors utilized in the gaseous diffusion process is of great importance due to the critical function of these machines in product and tails withdrawal, cascade purge and evacuation processes, the purge cascade and product booster applications. The same compressors will be used in equally important applications within the Gas Centrifuge Enrichment Plant (GCEP). In response to concern over the excessive vibration exhibited by the AC-12 compressor in the No. 3 position of the GCEP Tails Withdrawal Test Facility, a rotor-bearing dynamic analysis was performed on the compressor. This analysis included the acquisition and reduction of compressor vibration data, characterization and modeling of the rotorbearing system, a computer dynamic study, and recommendations for machine modification. The compressor dynamic analysis was performed for rotor speeds of 9000 rpm and 7200 to 7800 rpm, which includes all possible opreating speeds of the compressor in the GCEP Test Facility. While the analysis was performed on this particular AC-12 compressor, the results should be pertinent to other AC-12 applications as well. Similar diagnostic and analytical techniques can be used to evaluate operation of other types of centrifugal compressors.

Spencer, J.W.

1982-01-22T23:59:59.000Z

231

Abstract 1360: DNA methylation analysis in self-sampled material as a triage test in hrHPV positive women  

Science Journals Connector (OSTI)

...in self-sampled material as a triage test in hrHPV positive women Aniek Boers 1 Remko...DNA methylation analysis as a triage test in hrHPV positive women outperformed cytology...in self-sampled material as a triage test in hrHPV positive women. [abstract...

Aniek Boers; Remko P. Bosgraaf; Roland W. van Leeuwen; Ed Schuuring; Leon FAG Massuger; Johan Bulten; Willem J. Melchers; Ate GJ van der Zee; Ruud L. Bekkers; Bea Wisman

2014-10-01T23:59:59.000Z

232

Testing the plutonium isotopic analysis code FRAM with various CdTe detectors.  

SciTech Connect

The isotopic analysis code Fixed-energy Response-function Analysis with Multiple efficiency (FRAM)1,2 has been proven to successfully analyze plutonium spectra taken with a portable CdTe detector with Peltier cooling, the first results of this kind for a noncryogenic detector.3 These are the first wide-range plutonium gamma-ray isotopics analysis results obtained with other than Ge spectrometers. The CdTe spectrometer measured small plutonium reference samples in reasonable count times, covering the range from low to high burnup. This paper describes further testing of FRAM with two CdTe detectors of different sizes and resolutions using different analog and digital, portable multichannel analyzers (MCAs).

Vo, Duc T.; Russo, P. A. (Phyllis A.)

2002-01-01T23:59:59.000Z

233

Analysis of thermal properties of basalt from heater Test No. 2 experiment  

SciTech Connect

Rockwell Hanford Operations is conducting a series of full-scale in situ tests at the Near Surface Test Facility (NSTF) near Richland, Washington as an integral part of the Basalt Waste isolation project. An objective of the Phase I tests, which include Main Heater Test No. 2, is to provide data for determination the material properties necessary for predicting the response of a repository system at depth. During the first 90 days Heater Test No. 2 represents the near-field response of a high-level waste canister which generates 1 kW of heat energy. The analysis of the thermal response of basalt from data collected during this initial heating period is described in this report. Values of thermal conductivity and heat capacity for basalt are determined using three methods referred to as type curve matching, Jacob's straight line method, and the Gauss-Newton parameter optimization method. Results indicate that the type curve and the Gauss-Newton methods give values which correspond relatively closely to those measured in the laboratory.

Huyakorn, P.; Williams, J.R.; Thomas, S. (GeoTrans, Inc., Reston, VA (USA); Applied Mechanics, Inc., Grand Junction, CO (USA); GeoTrans, Inc., Reston, VA (USA))

1981-10-04T23:59:59.000Z

234

Design, analysis and testing of a parallel-kinematic high-bandwidth XY nanopositioning stage  

SciTech Connect

This paper presents the design, analysis, and testing of a parallel-kinematic high-bandwidth XY nanopositioning stage driven by piezoelectric stack actuators. The stage is designed with two kinematic chains. In each kinematic chain, the end-effector of the stage is connected to the base by two symmetrically distributed flexure modules, respectively. Each flexure module comprises a fixed-fixed beam and a parallelogram flexure serving as two orthogonal prismatic joints. With the purpose to achieve high resonance frequencies of the stage, a novel center-thickened beam which has large stiffness is proposed to act as the fixed-fixed beam. The center-thickened beam also contributes to reducing cross-coupling and restricting parasitic motion. To decouple the motion in two axes totally, a symmetric configuration is adopted for the parallelogram flexures. Based on the analytical models established in static and dynamic analysis, the dimensions of the stage are optimized in order to maximize the first resonance frequency. Then finite element analysis is utilized to validate the design and a prototype of the stage is fabricated for performance tests. According to the results of static and dynamic tests, the resonance frequencies of the developed stage are over 13.6 kHz and the workspace is 11.2??m 11.6??m with the cross-coupling between two axes less than 0.52%. It is clearly demonstrated that the developed stage has high resonance frequencies, a relatively large travel range, and nearly decoupled performance between two axes. For high-speed tracking performance tests, an inversion-based feedforward controller is implemented for the stage to compensate for the positioning errors caused by mechanical vibration. The experimental results show that good tracking performance at high speed is achieved, which validates the effectiveness of the developed stage.

Li, Chun-Xia; Gu, Guo-Ying; Yang, Mei-Ju; Zhu, Li-Min, E-mail: zhulm@sjtu.edu.cn [State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240 (China)] [State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240 (China)

2013-12-15T23:59:59.000Z

235

DOE/MSU composite material fatigue database: Test methods, materials, and analysis  

SciTech Connect

This report presents a detailed analysis of the results from fatigue studies of wind turbine blade composite materials carried out at Montana State University (MSU) over the last seven years. It is intended to be used in conjunction with the DOE/MSU composite Materials Fatigue Database. The fatigue testing of composite materials requires the adaptation of standard test methods to the particular composite structure of concern. The stranded fabric E-glass reinforcement used by many blade manufacturers has required the development of several test modifications to obtain valid test data for materials with particular reinforcement details, over the required range of tensile and compressive loadings. Additionally, a novel testing approach to high frequency (100 Hz) testing for high cycle fatigue using minicoupons has been developed and validated. The database for standard coupon tests now includes over 4,100 data points for over 110 materials systems. The report analyzes the database for trends and transitions in static and fatigue behavior with various materials parameters. Parameters explored are reinforcement fabric architecture, fiber content, content of fibers oriented in the load direction, matrix material, and loading parameters (tension, compression, and reversed loading). Significant transitions from good fatigue resistance to poor fatigue resistance are evident in the range of materials currently used in many blades. A preliminary evaluation of knockdowns for selected structural details is also presented. The high frequency database provides a significant set of data for various loading conditions in the longitudinal and transverse directions of unidirectional composites out to 10{sup 8} cycles. The results are expressed in stress and strain based Goodman Diagrams suitable for design. A discussion is provided to guide the user of the database in its application to blade design.

Mandell, J.F.; Samborsky, D.D. [Montana State Univ., Bozeman, MT (United States). Dept. of Chemical Engineering

1997-12-01T23:59:59.000Z

236

Analysis of Devonian shale multiwell interference tests in Meigs County, Ohio. Final report  

SciTech Connect

The Offset Well Test Program completed in 1981 was undertaken in order to investigate the production characteristics of Devonian shale reservoirs. The investigation involved a study of gas flow through natural fractures, the orientation and distribution of these fractures, and the gas storage/release mechanism and its effect on production. An experiment was designed to test the reservoir under strictly controlled conditions. Interference tests were conducted in Meigs County, Ohio on two wells drilled in the expected maximum and minimum permeability directions from a producing well with known completion and production history. Analysis of the test results indicate that the Devonian shale formation in the Meigs County, Ohio, area is an anisotropic, layered reservoir system. Flow characteristics indicate that the Meigs County reservoir is naturally fractured, may be represented as a dual porosity system, and may be modeled using pseudo-steady-state gas transfer from the matrix to the fracture system. The orientation of the natural fracture system was established through core observation and well test analysis as S65/sup 0/W. The maximum to minimum permeability ratio in the direction of the natural fracture system was calculated to be 8.3. Three distinct zones with independent flow characteristics were identified. The bottom zone, with permeability values significantly higher than the upper two zones, is highly fractured and is a major contributor to the gas production of Well 10056. The pressure profiles of the bottom zones relative to the upper zones were significantly different, indicating minimal communication between the layers. The knowledge of these parameters should have a significant impact on future development of shale reservoirs, through optimization of well spacing and choice of stimulation treatment to enhance gas production.

Alam, J.; Horan, K.; Lee, B.; Sawyer, W.

1982-02-23T23:59:59.000Z

237

Identification of Friction Parameters from the Inverse Analysis of a Direct Extrusion Test  

SciTech Connect

This work proposes to use a special upsetting test and an optimal direct extrusion one performed to identify the constitutive equation of the material behavior and the friction coefficients directly from the load-stroke curves. The proposed friction test has the advantage to permit to take into account contact phenomena corresponding to new specimen surfaces created during a real bulk cold forming process. A lot of numerical simulations are made with the commercial software FORGE2 in order to study the influence of some design and process parameters. Different friction laws will be identified starting from the classical Coulomb and Tresca ones. All the parameter identifications are made using the Inverse Analysis principle.

Adinel, Gavrus; Thien, Pham Duc [LGCGM Laboratory, EA 3913, INSA de RENNES, UEB, CS70839, F-35708, Rennes-Cedex 7 (France); Henri, Francillette [SCR/CM, UMR 6226, INSA de RENNES, UEB, CS70839, F-35708, Rennes-Cedex 7 (France)

2011-01-17T23:59:59.000Z

238

Multi-phase flow well test analysis in multi-layer reservoirs  

SciTech Connect

This paper investigates the performance of an oil well under multi-phase flow test conditions when the reservoir pressure falls below the bubble point pressure and is correspond with the performance of dissolved gas reservoirs. The model reservoir comprises two commingled layer, where a well test is conducted on a fully perforated interval. The water phase is assumed immobile. The main objective of this work is to interpret the flowing well pressure response and to predict reservoir characteristics based on its performance. The work presented is based on a constant terminal rate analysis, but it can also applied to constant bottomhole pressure and can be used to predict the Inflow Performance Relationship (IPR).

Jatmiko, W.; Archer, J.S. [Imperial College, London (United Kingdom); Daltaban, T.S.

1996-12-31T23:59:59.000Z

239

Sampling and Analysis Procedures for Gas, Condensate, Brine, and Solids: Pleasant Bayou Well Test, 1988-Present  

SciTech Connect

This section covers analyses performed on gas. Chemical analyses can only be related to well performance if the quantity of the various fluids are known. The IGT on-line data computer system measures the flowrate, the pressures, and the temperatures every 10 seconds. These values are automatically recorded over operator selected intervals both on magnetic media and on paper. This allows review of samples versus operating conditions. This paper covers analyses performed on gas, including: An approximate sampling schedule during flow tests; On-site sample handling and storage of gas samples; Addresses of laboratories that perform off site analyses; Sample shipping instructions; Data archiving; and Quality Control/Quality Assurance. It is expected that the above procedures will change as the flow test progresses, but deviations from the written procedures should be approved by C. Hayden of IGT and noted on the results of the analysis.

Hayden, Chris

1988-01-01T23:59:59.000Z

240

Analysis of Tracer Dispersion During a Prescribed Forest Burn  

E-Print Network (OSTI)

become a method to manage forest health, while preventing uncontrolled wild land fire. Low intensity, prescribed burns release less carbon dioxide than wildfires of the same size and may be used as a strategy. The ultimate goal of the project is to use the data from the burn, along with modeling techniques to improve

Collins, Gary S.

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
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241

Appearedin Proc. ACM Software Testing Analysis and Veri cation Symp. TAV3-SIGSOFT89, pp. 179-186, Dec. 1989. 1 Estimating the Number of Test Cases Required to Satisfy the All-du-paths  

E-Print Network (OSTI)

discriminating structural testing crite- ria are based on data ow analysis. Rapps and Weyuker de ne a familyAppearedin Proc. ACM Software Testing Analysis and Veri cation Symp. TAV3-SIGSOFT89, pp. 179-186, Dec. 1989. 1 Estimating the Number of Test Cases Required to Satisfy the All-du-paths Testing

Bieman, James M.

242

Standard test methods for chemical, mass spectrometric, and spectrochemical analysis of nuclear-grade boron carbide  

E-Print Network (OSTI)

1.1 These test methods cover procedures for the chemical, mass spectrometric, and spectrochemical analysis of nuclear-grade boron carbide powder and pellets to determine compliance with specifications. 1.2 The analytical procedures appear in the following order: Sections Total Carbon by Combustion and Gravimetry 7-17 Total Boron by Titrimetry 18-28 Isotopic Composition by Mass Spectrometry 29-38 Chloride and Fluoride Separation by Pyrohydrolysis 39-45 Chloride by Constant-Current Coulometry 46-54 Fluoride by Ion-Selective Electrode 55-63 Water by Constant-Voltage Coulometry 64-72 Impurities by Spectrochemical Analysis 73-81 Soluble Boron by Titrimetry 82-95 Soluble Carbon by a Manometric Measurement 96-105 Metallic Impurities by a Direct Reader Spectrometric Method 106-114

American Society for Testing and Materials. Philadelphia

2004-01-01T23:59:59.000Z

243

HRI catalytic two-stage liquefaction (CTSL) process materials: chemical analysis and biological testing  

SciTech Connect

This report presents data from the chemical analysis and biological testing of coal liquefaction materials obtained from the Hydrocarbon Research, Incorporated (HRI) catalytic two-stage liquefaction (CTSL) process. Materials from both an experimental run and a 25-day demonstration run were analyzed. Chemical methods of analysis included adsorption column chromatography, high-resolution gas chromatography, gas chromatography/mass spectrometry, low-voltage probe-inlet mass spectrometry, and proton nuclear magnetic resonance spectroscopy. The biological activity was evaluated using the standard microbial mutagenicity assay and an initiation/promotion assay for mouse-skin tumorigenicity. Where applicable, the results obtained from the analyses of the CTSL materials have been compared to those obtained from the integrated and nonintegrated two-stage coal liquefaction processes. 18 refs., 26 figs., 22 tabs.

Wright, C.W.; Later, D.W.

1985-12-01T23:59:59.000Z

244

Microsoft Word - S04040_tracer.doc  

Office of Legacy Management (LM)

Dispersivity Testing of Zero-Valent Iron Dispersivity Testing of Zero-Valent Iron Treatment Cells: Monticello, Utah November 2005 Through February 2008 April 2008 DOE LM/1587 2008 - - ESL RPT 2008 02 - - - Work Performed nder DOE Contract No. for the U.S. Department of Energy Office of Legacy Management. by the S.M. Stoller Corporation u DE AM01 07LM00060 - - Approved for public release; distribution is unlimited. This page intentionally left blank DOE-LM/1587-2007 ESL-RPT-2008-02 Dispersivity Testing of Zero-Valent Iron Treatment Cells: Monticello, Utah, November 2005 Through February 2008 April 2008 Work Performed by S.M. Stoller Corporation under DOE Contract No. DE-AM01-07LM00060 for the U.S. Department of Energy Office of Legacy Management, Grand Junction, Colorado This page intentionally left blank

245

Microsoft Word - S04040_tracer.doc  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Dispersivity Testing of Zero-Valent Iron Dispersivity Testing of Zero-Valent Iron Treatment Cells: Monticello, Utah November 2005 Through February 2008 April 2008 DOE LM/1587 2008 - - ESL RPT 2008 02 - - - Work Performed nder DOE Contract No. for the U.S. Department of Energy Office of Legacy Management. by the S.M. Stoller Corporation u DE AM01 07LM00060 - - Approved for public release; distribution is unlimited. This page intentionally left blank DOE-LM/1587-2007 ESL-RPT-2008-02 Dispersivity Testing of Zero-Valent Iron Treatment Cells: Monticello, Utah, November 2005 Through February 2008 April 2008 Work Performed by S.M. Stoller Corporation under DOE Contract No. DE-AM01-07LM00060 for the U.S. Department of Energy Office of Legacy Management, Grand Junction, Colorado This page intentionally left blank

246

Analysis of the KROTOS KFC test by coupling X-Ray image analysis and MC3D calculations  

SciTech Connect

During a hypothetical severe accident sequence in a Pressurized Water Reactor (PWR), the hot molten materials (corium) issuing from the degraded reactor core may generate a steam explosion if they come in contact with water and may damage the structures and threaten the reactor integrity. The SERENA program is an international OECD project that aims at helping the understanding of this phenomenon also called Fuel Coolant Interaction (FCI) by providing data. CEA takes part in this program by performing tests in its KROTOS facility where steam explosions using prototypic corium can be triggered. Data about the different phases in the premixing are extracted from the KROTOS X-Ray radioscopy images by using KIWI software (KROTOS Image analysis of Water-corium Interaction) currently developed by CEA. The MC3D code, developed by IRSN, is a thermal-hydraulic multiphase code mainly dedicated to FCI studies. It is composed of two applications: premixing and explosion. An overall FCI calculation with MC3D requires a premixing calculation followed by an explosion calculation. The present paper proposes an alternative approach in which all the features of the premixing are extracted from the X-Ray pictures using the KIWI software and transferred to an MC3D dataset for a direct simulation of the explosion. The main hypothesis are discussed as well as the first explosion results obtained with MC3D for the KROTOS KFC test. These results are rather encouraging and are analyzed on the basis of comparisons with the experimental data. (authors)

Brayer, C.; Charton, A.; Grishchenko, D.; Fouquart, P.; Bullado, Y.; Compagnon, F.; Correggio, P.; Cassiaut-Louis, N.; Piluso, P. [Commissariat a l'Energie Atomique et Aux Energies Alternatives, CEA Cadarache, DEN, F-13108 Saint-Paul-Les-Durance (France)

2012-07-01T23:59:59.000Z

247

Vehicle Technologies Office Merit Review 2014: Overview and Progress of the Battery Testing, Design and Analysis Activity  

Energy.gov (U.S. Department of Energy (DOE))

Presentation given by the Department of Energy's Energy Storage area at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about the battery testing, design, and analysis activity.

248

CACI: The Cesium-137 Agricultural Commodities Irradiator. Final design report: Volume 7, Safety analysis, thermal analysis, and thermal testing  

SciTech Connect

This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE`s Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the 137 Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site. The CACI final design is described in eight volumes. This volume, Volume VII, describes Safety Analysis, Thermal Analysis, and Thermal Testing.

Not Available

1986-12-19T23:59:59.000Z

249

Wind-electric icemaking project: Analysis and dynamometer testing. Volume 1  

SciTech Connect

The wind/hybrid systems group at the National Renewable Energy Laboratory has been researching the most practical and cost-effective methods for producing ice from off-grid wind-electric power systems. The first phase of the project, conducted in 1993--1994, included full-scale dynamometer and field testing of two different electric ice makers directly connected to a permanent magnet alternator. The results of that phase were encouraging and the second phase of the project was launched in which steady-state and dynamic numerical models of these systems were developed and experimentally validated. The third phase of the project was the dynamometer testing of the North Star ice maker, which is powered by a 12-kilowatt Bergey Windpower Company, Inc., alternator. This report describes both the second and third project phases. Also included are detailed economic analyses and a discussion of the future prospects of wind-electric ice-making systems. The main report is contained in Volume 1. Volume 2 consists of the report appendices, which include the actual computer programs used in the analysis and the detailed test results.

Holz, R.; Gervorgian, V.; Drouilhet, S.; Muljadi, E.

1998-07-01T23:59:59.000Z

250

Strategic Petroleum Reserve (SPR) oil storage cavern sulphur mines 2-4-5 certification tests and analysis. Part I: 1981 testing. Part II: 1982 testing  

SciTech Connect

Well leak tests and a cavern pressure were conducted in June through December 1981, and are described in Part I. The tests did not indicate conclusively that there was no leakage from the cavern, but the data indicate that cavern structural failure during oil storage is unlikely. The test results indicated that retesting and well workover were desirable prior to making a decision on the cavern use. Well leak tests were conducted in March through May 1982, and are described in Part II. The tests indicated that there was no significant leakage from wells 2 and 4 but that the leakage from wells 2A and 5 exceeded the DOE criterion. Because of the proximity of cavern 2-4-5 to the edge of the salt, this cavern should be considered for only one fill/withdrawal cycle prior to extensive reevaluation. 57 figures, 17 tables.

Beasley, R.R.

1982-12-01T23:59:59.000Z

251

Internal Technical Report, Hydrothermal Injection Program - East Mesa 1983-84 Test Data  

SciTech Connect

This report presents a test data index and a data plots for a series of 12 drawdown and tracer injection-withdrawal tests in porous-media aquifers at the East Mesa Geothermal Field located in the Imperial Valley near El Centro, California. Test and instrumentation summaries are also provided. The first 10 of these tests were completed during July and August 1983. The remaining 2 tests were completed in February 1984, after a 6-month quiescent period, in which tracers were left in the reservoir. The test wells used were 56-30 and 56-19, with 38-30 supplying water for the injection phase and 52-29 used as a disposal well during the backflowing of the test wells. Six other wells in the surrounding area were measured periodically for possible hydrologic effects during testing. It is not the intent of this report to supply analyzed data, but to list the uninterpreted computer stored data available for analysis. The data have been examined only to the extent to ensure that they are reasonable and internally consistent. This data is stored on permanent files at the Idaho National Engineering Laboratory (INEL) Cyber Computer Complex. The main processors for this complex are located at the Computer Science Center (CSC) in Idaho Falls, Idaho. The Hydrothermal Injection Test program, funded by the Department of Energy, was a joint effort between EG and G Idaho, Inc., the University of Utah Research Institute (UURI) and Republic Geothermal, Inc. (RGI) of Santa Fe Springs, California.

Freiburger, R.M.

1984-09-01T23:59:59.000Z

252

RADIOGENIC ISOTOPES: TRACERS OF PAST OCEAN CIRCULATION AND EROSIONAL INPUT  

E-Print Network (OSTI)

in the ocean has varied as a function of changes in paleocircu- lation, source provenances, style and intensity-established paleoceano- graphic tracers such as carbon isotopes. INDEX TERMS: 1040 Geochemistry: Isotopic composition Atlantic Deep Water (NADW) according to latest estimates based on results of the World Ocean Circulation

Jellinek, Mark

253

DIVISION S-3-NOTES HYDROLOGIC TRACER EFFECTS ON SOIL  

E-Print Network (OSTI)

and denitrification (the conversion of NOf to N gas)can be important to the fate of NOf and organic pollutants on microbial activity. These effects could be important whentracers areused instudies of the fate and transport of pollutants in the environment. In such studies, it is important to determine if tracer compounds affect

Gold, Art

254

Standard test methods for chemical, mass spectrometric, spectrochemical, nuclear, and radiochemical analysis of nuclear-grade plutonium nitrate solutions  

E-Print Network (OSTI)

1.1 These test methods cover procedures for the chemical, mass spectrometric, spectrochemical, nuclear, and radiochemical analysis of nuclear-grade plutonium nitrate solutions to determine compliance with specifications. 1.2 The analytical procedures appear in the following order: Sections Plutonium by Controlled-Potential Coulometry Plutonium by Amperometric Titration with Iron(II) Plutonium by Diode Array Spectrophotometry Free Acid by Titration in an Oxalate Solution 8 to 15 Free Acid by Iodate Precipitation-Potentiometric Titration Test Method 16 to 22 Uranium by Arsenazo I Spectrophotometric Test Method 23 to 33 Thorium by Thorin Spectrophotometric Test Method 34 to 42 Iron by 1,10-Phenanthroline Spectrophotometric Test Method 43 to 50 Impurities by ICP-AES Chloride by Thiocyanate Spectrophotometric Test Method 51 to 58 Fluoride by Distillation-Spectrophotometric Test Method 59 to 66 Sulfate by Barium Sulfate Turbidimetric Test Method 67 to 74 Isotopic Composition by Mass Spectrom...

American Society for Testing and Materials. Philadelphia

2010-01-01T23:59:59.000Z

255

Analysis of Thermally Induced Changes in Fractured Rock Permeability during Eight Years of Heating and Cooling at the Yucca Mountain Drift Scale Test  

E-Print Network (OSTI)

and Cooling at the Yucca Mountain Drift Scale Test J.mechanical analysis of the Yucca Mountain Drift Scale Test scale heater test at Yucca Mountain, Nevada, USA. Int J Rock

Rutqvist, J.

2008-01-01T23:59:59.000Z

256

Standard test methods for chemical and mass spectrometric analysis of nuclear-grade gadolinium oxide (Gd2O3) powder  

E-Print Network (OSTI)

1.1 These test methods cover procedures for the chemical and mass spectrometric analysis of nuclear-grade gadolinium oxide powders to determine compliance with specifications. 1.2 The analytical procedures appear in the following order: Sections Carbon by Direct CombustionThermal Conductivity C1408 Test Method for Carbon (Total) in Uranium Oxide Powders and Pellets By Direct Combustion-Infrared Detection Method Total Chlorine and Fluorine by Pyrohydrolysis Ion Selective Electrode C1502 Test Method for Determination of Total Chlorine and Fluorine in Uranium Dioxide and Gadolinium Oxide Loss of Weight on Ignition 7-13 Sulfur by CombustionIodometric Titration Impurity Elements by a Spark-Source Mass Spectrographic C761 Test Methods for Chemical, Mass Spectrometric, Spectrochemical,Nuclear, and Radiochemical Analysis of Uranium Hexafluoride C1287 Test Method for Determination of Impurities In Uranium Dioxide By Inductively Coupled Plasma Mass Spectrometry Gadolinium Content in Gadolinium Oxid...

American Society for Testing and Materials. Philadelphia

2006-01-01T23:59:59.000Z

257

Data Analysis Methods for Testing Alternative Theories of Gravity with LISA Pathfinder  

E-Print Network (OSTI)

In this paper we present a data analysis approach applicable to the potential saddle-point fly-by mission extension of LISA Pathfinder (LPF). At the peak of its sensitivity, LPF will sample the gravitational field in our Solar System with a precision of several $\\text{fm/s}^2/\\sqrt{\\text{Hz}}$ at frequencies around $1\\,\\text{mHz}$. Such an accurate accelerometer will allow us to test alternative theories of gravity that predict deviations from Newtonian dynamics in the non-relativistic limit. As an example, we consider the case of the Tensor-Vector-Scalar theory of gravity and calculate, within the non-relativistic limit of this theory, the signals that anomalous tidal stresses generate in LPF. We study the parameter space of these signals and divide it into two subgroups, one related to the mission parameters and the other to the theory parameters that are determined by the gravity model. We investigate how the mission parameters affect the signal detectability concluding that these parameters can be determined with the sufficient precision from the navigation of the spacecraft and fixed during our analysis. Further, we apply Bayesian parameter estimation and determine the accuracy to which the gravity theory parameters may be inferred. We evaluate the portion of parameter space that may be eliminated in case of no signal detection and estimate the detectability of signals as a function of parameter space location. We also perform a first investigation of non-Gaussian "noise-glitches" that may occur in the data. The analysis we develop is universal and may be applied to anomalous tidal stress induced signals predicted by any theory of gravity.

Natalia Korsakova; Chris Messenger; Francesco Pannarale; Martin Hewitson; Michele Armano

2014-08-21T23:59:59.000Z

258

Neural network approaches to tracer identification as related to PIV research  

SciTech Connect

Neural networks have become very powerful tools in many fields of interest. This thesis examines the application of neural networks to another rapidly growing field flow visualization. Flow visualization research is used to experimentally determine how fluids behave and to verify computational results obtained analytically. A form of flow visualization, particle image velocimetry (PIV). determines the flow movement by tracking neutrally buoyant particles suspended in the fluid. PIV research has begun to improve rapidly with the advent of digital imagers, which can quickly digitize an image into arrays of grey levels. These grey level arrays are analyzed to determine the location of the tracer particles. Once the particles positions have been determined across multiple image frames, it is possible to track their movements, and hence, the flow of the fluid. This thesis explores the potential of several different neural networks to identify the positions of the tracer particles. Among these networks are Backpropagation, Kohonen (counter-propagation), and Cellular. Each of these algorithms were employed in their basic form, and training and testing were performed on a synthetic grey level array. Modifications were then made to them in attempts to improve the results.

Seeley, C.H. Jr.

1992-12-01T23:59:59.000Z

259

Mixing properties in the advection of passive tracers via recurrences and extreme value theory  

E-Print Network (OSTI)

In this paper we characterize the mixing properties in the advection of passive tracers by exploiting the extreme value theory for dynamical systems. With respect to classical techniques directly related to the Poincar\\'e recurrences analysis, our method provides reliable estimations of the characteristic mixing times and distinguishes between barriers and unstable fixed points. The method is based on a check of convergence for extreme value laws on finite datasets. We define the mixing times in terms of the shortest time intervals such that extremes converge to the asymptotic (known) parameters of the Generalized Extreme Value distribution. Our technique is suitable for applications in the analysis of other systems where mixing time scales need to be determined and limited datasets are available.

Davide Faranda; Xavier Leoncini; Sandro Vaienti

2014-02-16T23:59:59.000Z

260

Cost analysis of Hybrid LFSR as deterministic and pseudorandom test pattern generator.  

E-Print Network (OSTI)

??Hybrid Linear Feedback Shift Register (HLFSR) is a new Built-in Self Test (BIST) pattern generator that can generate a set of deterministic test patterns followed (more)

Utama, Peter

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

An investigation of radial tracer flow in naturally fractured reservoirs  

SciTech Connect

This study presents a general solution for the radial flow of tracers in naturally fractured reservoirs. Continuous and finite step injection of chemical and radioactive tracers are considered. The reservoir is treated as being composed of two regions: a mobile region where longitudinal dispersion and convection take place and a stagnant region where only diffusion and adsorption are allowed. Radioactive decay is considered in both regions. The model of this study is thoroughly compared to those previously presented in literature by Moench and Ogata, Tang et al., Chen et al., and Hsieh et al. The solution is numerically inverted by means of the Crump algorithm. A detailed validation of the model with respect to solutions previously presented and/or simplified physical conditions solutions (i.e., homogeneous case) or limit solutions (i.e., for short times) was carried out. The influence of various dimensionless parameters that enter into the solution was investigated. A discussion of results obtained through the Crump and Stehfest algorithm is presented, concluding that the Crump method provides more reliable tracer concentrations.

Jetzabeth, Ramirez-Sabag; Fernando, Samaniego V.; Jesus, Rivera R.; Fernando Rodriguez

1991-01-01T23:59:59.000Z

262

Seismic fragility evaluation of a piping system in a nuclear power plant by shaking table test and numerical analysis  

SciTech Connect

In this study, a seismic fragility evaluation of the piping system in a nuclear power plant was performed. For the evaluation of seismic fragility of the piping system, this research was progressed as three steps. At first, several piping element capacity tests were performed. The monotonic and cyclic loading tests were conducted under the same internal pressure level of actual nuclear power plants to evaluate the performance. The cracks and wall thinning were considered as degradation factors of the piping system. Second, a shaking tale test was performed for an evaluation of seismic capacity of a selected piping system. The multi-support seismic excitation was performed for the considering a difference of an elevation of support. Finally, a numerical analysis was performed for the assessment of seismic fragility of piping system. As a result, a seismic fragility for piping system of NPP in Korea by using a shaking table test and numerical analysis. (authors)

Kim, M. K.; Kim, J. H.; Choi, I. K. [Korea Atomic Energy Research Inst., Daedeok-daero 989-111, Yuseong-gu, Daejeon, 305-353 (Korea, Republic of)

2012-07-01T23:59:59.000Z

263

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, What is the skill of ocean tracers in reducing uncertainties  

E-Print Network (OSTI)

in current Earth system models and (ii) imperfect knowledge of model parameters. Ocean tracers observa- tions

Haran, Murali

264

LoanSTAR Monitoring and Analysis Program: Presentation Summary of the State Capitol Complex Building Operation and Maintenance Field Test  

E-Print Network (OSTI)

requests, only 58% to 95% of AHUs identified in earlier report were shut off S. F. Austin Whole Building Electricity & Chilled Water Consumption Over 600 kW reduction when AHUs and lights turned off L.B. Johnson Whole Building Electricity & Chilled Water...LoanSTAR Monitoring and Analysis Program Presentation Summary of the State Capitol Complex Building Operation and Maintenance Field Test Presented to the State Purchasing and General Services Commission By the Monitoring Analysis Task E Dr. W. D...

Turner, W. D.; Houcek, J. K.; Liu, M.; Claridge, D. E.

1993-01-01T23:59:59.000Z

265

Summer 2012 Testing and Analysis of the Chemical Mixture Methodology -- Part I  

SciTech Connect

This report presents the key findings made by the Chemical Mixture Methodology (CMM) project team during the first stage of their summer 2012 testing and analysis of the CMM. The study focused on answering the following questions: o What is the percentage of the chemicals in the CMM Rev 27 database associated with each Health Code Number (HCN)? How does this result influence the relative importance of acute HCNs and chronic HCNs in the CMM data set? o What is the benefit of using the HCN-based approach? Which Modes of Action and Target Organ Effects tend to be important in determining the HCN-based Hazard Index (HI) for a chemical mixture? o What are some of the potential issues associated with the current HCN-based approach? What are the opportunities for improving the performance and/or technical defensibility of the HCN-based approach? How would those improvements increase the benefit of using the HCN-based approach? o What is the Target Organ System Effect approach and how can it be used to improve upon the current HCN-based approach? How does the benefits users would derive from using the Target Organ System Approach compare to the benefits available from the current HCN-based approach?

Glantz, Clifford S.; Yu, Xiao-Ying; Coggin, Rebekah L.; Ponder, Lashaundra A.; Booth, Alexander E.; Petrocchi, Achille J.; Horn, Sarah M.; Yao, Juan

2012-07-01T23:59:59.000Z

266

E-Print Network 3.0 - air inleakage test Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

inleakage test Search Powered by Explorit Topic List Advanced Search Sample search results for: air inleakage test Page: << < 1 2 3 4 5 > >> 1 INFORMAL REPORT MULTI-TRACER CONTROL...

267

A Principal Components Analysis of Executive Processes: Exploring the Structure of Executive Functions using Neuropsychological Tests  

E-Print Network (OSTI)

, Dual-Tasking and Planning) and their relationship to Intelligence. The separability of these executive functions was explored. Ten neuropsychological tests were administered to young and healthy participants (N =103). Correlations between tests...

Maner, Safir

2011-11-23T23:59:59.000Z

268

Design of a non-contact vibration measurement and analysis system for electronic board testing  

E-Print Network (OSTI)

Traditional vibration measurement methods involve placing accelerometers at discrete locations on a test object. In cases where the test specimen is small in mass, the addition of these measurement transducers can alter ...

Arn, Krissa Elizabeth, 1980-

2004-01-01T23:59:59.000Z

269

Numerical analysis of thermal-hydrological conditions in the single heater test at Yucca Mountain  

E-Print Network (OSTI)

Single Heater Test at Yucca Mountain, LBNL-39789, E.O. LawSingle Heater Test at Yucca Mountain Jens T. Birkholzer andwaste repository at Yucca Mountain. The heating phase of the

Birkholzer, Jens T.; Tsang, Yvonne W.

1998-01-01T23:59:59.000Z

270

Thermodynamic and heat transfer analysis of heat recovery from engine test cell by Organic Rankine Cycle  

Science Journals Connector (OSTI)

During manufacture of engines, evaluation of engine performance is essential. This is accomplished in test cells. During the test, a significant portion of heat energy released by the fuel is wasted. In this stud...

Naser Shokati; Farzad Mohammadkhani; Navid Farrokhi

2014-12-01T23:59:59.000Z

271

RAMI Analysis Program Design and Research for CFETR (Chinese Fusion Engineering Testing Reactor) Tokamak Machine  

Science Journals Connector (OSTI)

Chinese Fusion Engineering Testing Reactor (CFETR) is a test reactor which shall be constructed by National Integration Design Group for Magnetic Confinement Fusion Reactor of China with an ambitious scientific ...

Shijun Qin; Yuntao Song; Damao Yao; Yuanxi Wan; Songtao Wu

2014-10-01T23:59:59.000Z

272

Post-test analysis of dryout test 7B' of the W-1 Sodium Loop Safety Facility Experiment with the SABRE-2P code. [LMFBR  

SciTech Connect

An understanding of conditions that may cause sodium boiling and boiling propagation that may lead to dryout and fuel failure is crucial in liquid-metal fast-breeder reactor safety. In this study, the SABRE-2P subchannel analysis code has been used to analyze the ultimate transient of the in-core W-1 Sodium Loop Safety Facility experiment. This code has a 3-D simple nondynamic boiling model which is able to predict the flow instability which caused dryout. In other analyses dryout has been predicted for out-of-core test bundles and so this study provides additional confirmation of the model.

Rose, S.D.; Dearing, J.F.

1981-01-01T23:59:59.000Z

273

Department of Mechanical and Nuclear Engineering Spring 2012 Heavy-Duty Diesel Engine Friction Reduction Testing and Analysis  

E-Print Network (OSTI)

PENNSTATE Department of Mechanical and Nuclear Engineering Spring 2012 Heavy-Duty Diesel Engine Friction Reduction Testing and Analysis Overview Volvo Group Powertrain Engineering is interested will need to be constructed that can motor the engine and measure power losses using a torque sensor built

Demirel, Melik C.

274

Comparison of uptake of colorectal cancer screening based on faecal immunochemical testing (FIT) in males and females: A systematic review and meta-analysis  

Science Journals Connector (OSTI)

...mortality. Internationally, faecal immunochemical testing (FIT) is increasingly being recommended as the primary screening test. This systematic review and meta-analysis aimed to determine if uptake of FIT screening differs between men than women. Methods...

Nicholas Clarke; Linda Sharp; Aoife Osborne; Patricia M. Kearney

275

Performance testing and Bayesian Reliability Analysis of small diameter, high power electric heaters for the simulation of nuclear fuel rod temperatures  

E-Print Network (OSTI)

proposed full test using prototypic mixed-oxide fuel (MOX) containing plutonium from converted nuclear weapons. Bayesian reliability analysis methods were used to determine the expected heater failure rate because of the expected short test duration...

O'Kelly, David Sean

2012-06-07T23:59:59.000Z

276

Analysis of FY 2005/2006 Hydrologic Testing and Sampling Results for Well ER-12-4, Nevada Test Site, Nye County, Nevada, Rev. No.: 0  

SciTech Connect

This report documents the analysis of data collected for ER-12-4 during the fiscal year (FY) 2005 Rainier Mesa/Shoshone Mountain well development and hydraulic testing program (herein referred to as the ''testing program'') and hydraulic response data from the FY 2006 Sampling Program. Well ER-12-4 was constructed and tested as a part of the Corrective Action Unit (CAU) 99, Rainier Mesa/Shoshone Mountain, Phase I drilling program during FY 2005. These activities were conducted on behalf of the U.S. Department of Energy (DOE), National Nuclear Security Administration Nevada Site Office (NNSA/NSO) for the Underground Test Area (UGTA) Subproject. As shown on Figure 1-1, ER-12-4 is located in central Rainier Mesa, in Area 12 of the Nevada Test Site (NTS). Figure 1-2 shows the well location in relation to the tunnels under Rainier Mesa. The well was drilled to a total depth (TD) of 3,715 feet (ft) below ground surface (bgs) (surface elevation 6,883.7 ft above mean sea level [amsl]) in the area of several tunnels mined into Rainier Mesa that were used historically for nuclear testing (NNSA/NSO, 2006). The closest nuclear test to the well location was MIGHTY OAK (U-12t.08), conducted in the U-12t Tunnel approximately 475 ft north of the well site. The MIGHTY OAK test working point elevation was located at approximately 5,620 ft amsl. The MIGHTY OAK test had an announced yield of ''less than 20 kilotons'' (DOE/NV, 2000). The purpose of this hydrogeologic investigation well is to evaluate the deep Tertiary volcanic section below the tunnel level, which is above the regional water table, and to provide information on the section of the lower carbonate aquifer - thrust plate (LCA3), located below the Tertiary volcanic section (SNJV, 2005b). Details on the drilling and completion program are presented in the ''Completion Report for Well ER-12-4 Corrective Action Unit 99: Rainier Mesa-Shoshone Mountain'' (NNSA/NSO, 2006). Participants in ER-12-4 testing activities were: Stoller-Navarro Joint Venture (SNJV), Bechtel Nevada (BN), Desert Research Institute (DRI), Los Alamos National Laboratory (LANL), Lawrence Livermore National Laboratory (LLNL), and the U.S. Geological Survey (USGS). Stoller-Navarro Joint Venture served as the lead contractor responsible for providing site supervision, development and testing services, and waste management services; BN provided construction and engineering support services; DRI provided well logging services and participated in groundwater sampling and laboratory analyses; LANL and LLNL participated in groundwater sampling and laboratory analyses; and the USGS performed laboratory analyses. Analyses of data from the ER-12-4 testing program presented in this document were performed by SNJV except as noted. These same contractors participated in the FY 2006 Sampling Program.

Bill Fryer

2006-09-01T23:59:59.000Z

277

Standard test method for isotopic abundance analysis of uranium hexa?uoride and uranyl nitrate solutions by multi-collector, inductively coupled plasma-mass spectrometry  

E-Print Network (OSTI)

Standard test method for isotopic abundance analysis of uranium hexa?uoride and uranyl nitrate solutions by multi-collector, inductively coupled plasma-mass spectrometry

American Society for Testing and Materials. Philadelphia

2008-01-01T23:59:59.000Z

278

Characterization of four potential laser-induced fluorescence tracers for diesel engine applications  

Science Journals Connector (OSTI)

Four potential laser-induced fluorescence (LIF) tracers, 1-phenyloctane, 1-phenyldecane, 1-methylnaphthalene, and 2-methylnaphthalene, are characterized for diesel engine applications....

Trost, Johannes; Zigan, Lars; Leipertz, Alfred; Sahoo, Dipankar; Miles, Paul C

2013-01-01T23:59:59.000Z

279

Novel Multi-dimensional Tracers for Geothermal Inter-wall Diagnostics  

Energy.gov (U.S. Department of Energy (DOE))

DOE Geothermal Peer Review 2010 - Presentation. The objective of this project is to develop a matrix of the smart geothermal tracer and its interpretation tools.

280

Calcium translocation and whole plant transpiration: spatial and temporal measurements using radio-Strontium as tracer  

E-Print Network (OSTI)

comparison with zinc, strontium and rubidium. Annals of783- Wasserman RH. 1998. Strontium as a tracer for calciumor inapplicable. As Strontium (Sr) was found to behave in

Seligmann, Ron; Wengrowicz, Udi; Tirosh, Danny; Yermiyahu, Uri; Bar-Tal, Asher; Schwartz, Amnon

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

E-Print Network 3.0 - atmospheric tracer experiments Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

of Summary: for incorporating Lagrangian tracer positions into a model of flows (such as ocean currents). Such models... are important in understanding the behaviour of...

282

E-Print Network 3.0 - activity optimal tracers Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

AND AMOC Abstract Current projections of the oceanic response... in current Earth system models and (ii) imperfect knowledge of model parameters. Ocean tracers observa- tions...

283

Planning, Execution, and Analysis of the Meridian UAS Flight Test Program Including System and Parameter Identification  

E-Print Network (OSTI)

is delayed until the wind speeds are within the appropriate limits. Storm Systems The UAV only operates in Visual Flight Rules conditions. Flights are delayed until such conditions are present. 3.2 Phase II: Line-of-Sight Autonomous Flight Test....1.5 Emergency Procedures ........................................................................... 22 3.2 Phase II: Line-of-Sight Autonomous Flight Test .............................................. 24 3.2.1 Flight Test Objectives...

Tom, Jonathan

2010-04-27T23:59:59.000Z

284

Analysis of the ANL Test Method for 6CVS Containment Vessels  

SciTech Connect

In the fall of 2010, Argonne National Laboratory (ANL) contracted with vendors to design and build 6CVS containment vessels as part of their effort to ship Fuel Derived Mixed Fission Product material. The 6CVS design is based on the Savannah River National Laboratory's (SRNL) design for 9975 and 9977 six inch diameter containment vessels. The main difference between the designs is that the 6CVS credits the inner O-ring seal as the containment boundary while the SRNL design credits the outer O-ring seal. Since the leak test must be done with the inner O-ring in place, the containment vessel does not have a pathway for getting the helium into the vessel during the leak test. The leak testing contractor was not able to get acceptable leak rates with the specified O-ring, but they were able to pass the leak test with a slightly larger O-ring. ANL asked the SRNL to duplicate the leak test vendor's method to determine the cause of the high leak rates. The SRNL testing showed that the helium leak indications were caused by residual helium left within the 6CVS Closure Assembly by the leak test technique, and by helium permeation through the Viton O-ring seals. After SRNL completed their tests, the leak testing contractor was able to measure acceptable leak rates by using the slightly larger O-ring size, by purging helium from the lid threads, and by being very quick in getting the bell jar under a full vacuum. This paper describes the leak test vendor's test technique, and other techniques that could be have been used to successfully leak test the 6CVS's.

Trapp, D.; Crow, G.

2011-06-06T23:59:59.000Z

285

Dusts resuspension Test in the STARDUST Facility: Experimental and CFD Analysis.  

E-Print Network (OSTI)

??This thesis is related to the application of the CFD FLUENT code to the dust resuspension tests performed inside the STARDUST (Small Tank for Aerosol (more)

FREDIANI, FRANCESCO

2009-01-01T23:59:59.000Z

286

An Empirical Analysis of Gas Well Design and Pumping Tests for Retrofitting Landfill Gas Collection.  

E-Print Network (OSTI)

??Retrofitting a landfill with a gas collection system is an expensive and time consuming endeavor. Such an undertaking usually consists of longer-term extraction testing programs (more)

Stevens, Derek

2013-01-01T23:59:59.000Z

287

Safety analysis for tank 241-AZ-101 mixer pump process test  

SciTech Connect

This document establishes the safety envelope for Project W-151,the process test of two mixer pumps in AWF waste tank 241-AZ-101.

Milliken, N.J., Westinghouse Hanford

1996-08-01T23:59:59.000Z

288

Presymptomatic Testing for Adult-onset Neurological Disorders: An Analysis of Practice.  

E-Print Network (OSTI)

??Adult-onset neurological disorders (AONDs) are a heterogeneous group of neurodegenerative conditions which result in significant morbidity and mortality. With the availability of presymptomatic testing, the (more)

Fairbrother, Laura

2012-01-01T23:59:59.000Z

289

Estimation of tracer diffusion coefficients of ions in aqueous solution  

SciTech Connect

Equations are given for estimating tracer diffusion coefficients D/sub i//sup 0/ of ions at infinite dilution in terms of limiting ionic conductances ..lambda../sub i//sup 0/. Also given are generalized Nernst-Hartley equations for binary and multicomponent diffusion coefficients D/sup 0/ and D/sub ij//sup 0/, respectively, at infinite dilution. Data, estimates, and correlations for ..lambda../sub i//sup 0/ at 25/sup 0/C and other temperatures are discussed. Estimated values of ..lambda../sub i//sup 0/ are tabulated from 0-300/sup 0/C for ions of waste isolation interest and for ions of economic interest in geothermal brines. Estimates of their tracer diffusion coefficients at infinite dilution are tabulated. A rule of thumb, good to a factor of 2, is presented. Very limited data (available only at 25/sup 0/C) indicate that D/sub i//D/sub i//sup 0/ generally declines as the concentration of salt or supporting electrolyte increases. 6 figures, 2 tables.

Miller, D.G.

1982-09-07T23:59:59.000Z

290

Leak test adapter for containers  

DOE Patents (OSTI)

An adapter is provided for facilitating the charging of containers and leak testing penetration areas. The adapter comprises an adapter body and stem which are secured to the container's penetration areas. The container is then pressurized with a tracer gas. Manipulating the adapter stem installs a penetration plug allowing the adapter to be removed and the penetration to be leak tested with a mass spectrometer. Additionally, a method is provided for using the adapter.

Hallett, Brian H. (Elizabeth, PA); Hartley, Michael S. (Canonsburg, PA)

1996-01-01T23:59:59.000Z

291

Scoping analysis of the Advanced Test Reactor using SN2ND  

SciTech Connect

A detailed set of calculations was carried out for the Advanced Test Reactor (ATR) using the SN2ND solver of the UNIC code which is part of the SHARP multi-physics code being developed under the Nuclear Energy Advanced Modeling and Simulation (NEAMS) program in DOE-NE. The primary motivation of this work is to assess whether high fidelity deterministic transport codes can tackle coupled dynamics simulations of the ATR. The successful use of such codes in a coupled dynamics simulation can impact what experiments are performed and what power levels are permitted during those experiments at the ATR. The advantages of the SN2ND solver over comparable neutronics tools are its superior parallel performance and demonstrated accuracy on large scale homogeneous and heterogeneous reactor geometries. However, it should be noted that virtually no effort from this project was spent constructing a proper cross section generation methodology for the ATR usable in the SN2ND solver. While attempts were made to use cross section data derived from SCALE, the minimal number of compositional cross section sets were generated to be consistent with the reference Monte Carlo input specification. The accuracy of any deterministic transport solver is impacted by such an approach and clearly it causes substantial errors in this work. The reasoning behind this decision is justified given the overall funding dedicated to the task (two months) and the real focus of the work: can modern deterministic tools actually treat complex facilities like the ATR with heterogeneous geometry modeling. SN2ND has been demonstrated to solve problems with upwards of one trillion degrees of freedom which translates to tens of millions of finite elements, hundreds of angles, and hundreds of energy groups, resulting in a very high-fidelity model of the system unachievable by most deterministic transport codes today. A space-angle convergence study was conducted to determine the meshing and angular cubature requirements for the ATR, and also to demonstrate the feasibility of performing this analysis with a deterministic transport code capable of modeling heterogeneous geometries. The work performed indicates that a minimum of 260,000 linear finite elements combined with a L3T11 cubature (96 angles on the sphere) is required for both eigenvalue and flux convergence of the ATR. A critical finding was that the fuel meat and water channels must each be meshed with at least 3 'radial zones' for accurate flux convergence. A small number of 3D calculations were also performed to show axial mesh and eigenvalue convergence for a full core problem. Finally, a brief analysis was performed with different cross sections sets generated from DRAGON and SCALE, and the findings show that more effort will be required to improve the multigroup cross section generation process. The total number of degrees of freedom for a converged 27 group, 2D ATR problem is {approx}340 million. This number increases to {approx}25 billion for a 3D ATR problem. This scoping study shows that both 2D and 3D calculations are well within the capabilities of the current SN2ND solver, given the availability of a large-scale computing center such as BlueGene/P. However, dynamics calculations are not realistic without the implementation of improvements in the solver.

Wolters, E.; Smith, M. (NE NEAMS PROGRAM); ( SC)

2012-07-26T23:59:59.000Z

292

Using CO2 Lidar for Standoff Detection of a Perfluorocarbon Tracer in Air  

SciTech Connect

The Tag, Track and Location System Program (TTL) is investigating the use of PFTs as tracers for tagging and tracking items of interest or fallen soldiers. In order for the tagging and tracking to be valuable there must be a location system that can detect the PFTs. This report details the development of an infrared lidar platform for standoff detection of PFTs released into the air from a tagged object or person. Furthering work performed using a table top lidar system in an indoor environment; a mobile mini lidar platform was assembled using an existing Raman lidar platform, a grating tunable CO{sub 2} IR laser, Judson HgCdTe detector and miscellaneous folding optics and electronics. The lidar achieved {approx}200 ppb-m sensitivity in laboratory and indoor testing and was then successfully demonstrated at an outdoor test. The lidar system was able to detect PFTs released into a vehicle from a distance of 100 meters. In its final, fully optimized configuration the lidar was capable of repeatedly detecting PFTs in the air released from tagged vehicles. Responses were immediate and clear. This report details the results of a proof-of-concept demonstration for standoff detection of a perfluorocarbon tracer (PFT) using infrared lidar. The project is part of the Tag, Track and Location System Program and was performed under a contract with Tracer Detection Technology Corp. with funding from the Office of Naval Research. A lidar capable of detecting PFT releases at distance was assembled by modifying an existing Raman lidar platform by incorporating a grating tunable CO{sub 2} IR laser, Judson HgCdTe detector and miscellaneous folding optics and electronics. The lidar achieved {approx}200 ppb-m sensitivity in laboratory and indoor testing and was successfully demonstrated at an outdoor test. The demonstration test (scripted by the sponsor) consisted of three parked cars, two of which were tagged with the PFT. The cars were located 70 (closest) to 100 meters (farthest) from the lidar (the lidar beam path was limited by site constraints and was {approx}100 meters). When one door of each of the cars was opened (sequentially), the lidar was clearly able to determine which vehicles had been tagged and which one was not. The lidar is probably capable of greater than 0.5 kilometer standoff distances based on the extreme amount of signal return achieved (so much that the system had to be de-tuned). The BNL lidar system, while optimized to the extent possible with available parts and budget, was not as sensitive as it could be. Steps to improve the lidar are detailed in this report and include using a better laser system (for more stable power output), dual wavelengths (to improve the sensitivity and allow common mode noise reduction and to allow the use of the lidar in a scanning configuration), heterodyning (for range resolved PFT detection) and an off-axis optical configuration (for improved near field sensitivity).

Heiser,J.H.; Smith, S.; Sedlacek, A.

2008-02-06T23:59:59.000Z

293

Standard test method for isotopic analysis of uranium hexafluoride by double standard single-collector gas mass spectrometer method  

E-Print Network (OSTI)

1.1 This is a quantitative test method applicable to determining the mass percent of uranium isotopes in uranium hexafluoride (UF6) samples with 235U concentrations between 0.1 and 5.0 mass %. 1.2 This test method may be applicable for the entire range of 235U concentrations for which adequate standards are available. 1.3 This test method is for analysis by a gas magnetic sector mass spectrometer with a single collector using interpolation to determine the isotopic concentration of an unknown sample between two characterized UF6 standards. 1.4 This test method is to replace the existing test method currently published in Test Methods C761 and is used in the nuclear fuel cycle for UF6 isotopic analyses. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appro...

American Society for Testing and Materials. Philadelphia

2010-01-01T23:59:59.000Z

294

Standard Test Method for Isotopic Analysis of Uranium Hexafluoride by Single-Standard Gas Source Multiple Collector Mass Spectrometer Method  

E-Print Network (OSTI)

1.1 This test method is applicable to the isotopic analysis of uranium hexafluoride (UF6) with 235U concentrations less than or equal to 5 % and 234U, 236U concentrations of 0.0002 to 0.1 %. 1.2 This test method may be applicable to the analysis of the entire range of 235U isotopic compositions providing that adequate Certified Reference Materials (CRMs or traceable standards) are available. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety health practices and determine the applicability of regulatory limitations prior to use.

American Society for Testing and Materials. Philadelphia

2011-01-01T23:59:59.000Z

295

Targeted hepatitis C antibody testing interventions: a systematic review and meta-analysis  

Science Journals Connector (OSTI)

Testing for hepatitis C virus (HCV) infection may reduce the risk of liver-related morbidity, by facilitating earlier access to treatment and care. This review investigated the effectiveness of targeted testin...

Esther Jane Aspinall; Joseph Samuel Doyle

2014-11-01T23:59:59.000Z

296

Design and safety analysis of an in-flight, test airfoil  

E-Print Network (OSTI)

of the airfoil. With some areas of aerodynamic research choosing to utilize flight testing over wind tunnels the need to design and certify safe and reliable designs is a necessity. Commercially available codes have routinely demonstrated an ability to simulate...

McKnight, Christopher William

2006-10-30T23:59:59.000Z

297

Failure Analysis of Power Battery Under High Environment Temperatures in Impact Test  

Science Journals Connector (OSTI)

The impact tests of the power battery were performed at 40 and 65C ... circuit, the heat can accumulate inside the battery, and those accumulated heat can lead to thermal runaway and even battery burning and ex...

Hongwei Wang; Haiqing Xiao; Yanling Fu

2013-01-01T23:59:59.000Z

298

Guide to ASTM test methods for the analysis of coal and coke  

SciTech Connect

The guide includes brief descriptions of all 56 ASTM test methods that cover the physical, chemical, and spectroscopic analytical techniques to qualitatively and quantitatively identify over 40 chemical and physical properties of coal, coke, their products, and by-products.

R.A. Kishore Nadkarni (ed.)

2008-07-01T23:59:59.000Z

299

Improving the accuracy of SRAM-based failure analysis using IDDQ testing  

E-Print Network (OSTI)

the accuracy of SRAM-based defect diagnosis using calibrated IDDQ testing by including mode realistic bridging resistance distributions, and taking open defects into consideration. The outcome is better sampling efficiency, by predicting the likely defect type...

Nugroho, Setyo

2012-06-07T23:59:59.000Z

300

Systematic Software Testing using VeriSoft: An Analysis of the 4ESS HeartBeat Monitor  

E-Print Network (OSTI)

Systematic Software Testing using VeriSoft: An Analysis of the 4ESS Heart­Beat Monitor Patrice­fledged programming lan­ guages such as C or C++. We report in this paper our anal­ ysis with VeriSoft of the 4ESS. The 4ESS HBM plays an important role in the routing of data in the switch, and can significantly im

Godefroid, Patrice

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

System design, test results, and economic analysis of a flywheel energy storage and conversion system for photovoltaic applications  

SciTech Connect

MIT Lincoln Laboratory is developing a flywheel interface and storage system for use with photovoltaic power sources. Test data on the performance of components built to investigate the feasibility of such a system, and the results of economic studies of the system showing user-worth analysis and manufacturing-cost estimates, are presented. The system has magnetic bearings, a maximum-power-point tracker, DC input, and cycloconverter output from an ironless-armature motor-generator.

Millner, A.R.; Dinwoodie, T.

1980-01-01T23:59:59.000Z

302

Strategic Petroleum Reserve (SPR) oil storage cavern sulfur mines 7. Certification tests and analysis  

SciTech Connect

Cavern 7 at the Sulphur Mines, Louisiana SPR oil storage site was certified for oil storage on December 17, 1977. The Dowell Sonar caliper survey taken November 29, 1977, indicated a total cavern volume of 5.60 x 10/sup 6/ bbls. The surveys taken December 19, 1979, and June 10, 1981, indicated a total cavern volume of 6.33 x 10/sup 6/ and 6.36 x 10/sup 6/ bbls respectively. This volume increase was a result of continued brining, prior to June 10, 1981, to get brine enrichment for PPG. A well leak test in May 1981 indicated some well leakage. Well workover actions to repair well and wellhead leaks were taken by Texas Brine Corp/Dravo Utility Constructors, Inc. (TBC/DUCI). Testing was restarted in June 1981 using test procedures which were developed in conjunction with the procedures and testing of West Hackberry cavern 6. This report includes a general history of the cavern and a description of the certification testing, analyses, conclusions, and recommendations. The data from cavern 7 and 6 indicate no fluid communication between caverns. Cavern 7 is about 160 ft from the dome edge. The pressure data at maximum operating pressure is comparable to the data from both West Hackberry cavern 6 and Sulphur Mines cavern 6. Therefore, it is considered unlikely that there is a leak to the dome edge. The well test data indicates leaks in the well casing seat area are approximately 100 bbls/yr.

Beasley, R.R.

1982-05-01T23:59:59.000Z

303

SAND TRACER MOVEMENT MEASURED IN A STRONG RIP CURRENT Nicholas C. Kraus  

E-Print Network (OSTI)

exceeding 50 cm/sec in areas where instruments could be placed. Three colors of sand tracer were injected the diver's signal, a float tied to the diver's wrist was released and allowed to flow with the current because of the cold water, placed instruments, injected the tracer, and sampled the bottom with ropes tied

US Army Corps of Engineers

304

IAEA-CN-80/66 ISOTOPE TRACERS IN GLOBAL WATER AND CLIMATE STUDIES  

E-Print Network (OSTI)

comprehensive source of data for evaluating the modern global isotope field generated by atmospheric generalIAEA-CN-80/66 ISOTOPE TRACERS IN GLOBAL WATER AND CLIMATE STUDIES OF THE PAST AND PRESENT T Agency, Wagramer Strasse 5, P.O. Box 100, A-1400 Vienna, AUSTRIA Abstract ISOTOPE TRACERS IN GLOBAL WATER

Edwards, Thomas W.D.

305

Globally synchronous ice core volcanic tracers and abrupt cooling during the last glacial period  

E-Print Network (OSTI)

Globally synchronous ice core volcanic tracers and abrupt cooling during the last glacial period R (2006), Globally synchronous ice core volcanic tracers and abrupt cooling during the last glacial period histories from ice coring of Greenland and Antarctica over the period 2 to 45 ka, using SO4 anomalies

Price, P. Buford

306

Heat as a tracer to determine streambed water exchanges Jim Constantz1  

E-Print Network (OSTI)

Heat as a tracer to determine streambed water exchanges Jim Constantz1 Received 13 March 2008 of heat as a tracer of shallow groundwater movement and describes current temperature-based approaches relying on traditional observation wells, and remote sensing and other large-scale advanced temperature

307

Testing and Analysis for Lifetime Prediction of Crystalline Silicon PV Modules Undergoing Degradation by System Voltage Stress: Preprint  

SciTech Connect

Acceleration factors are calculated for crystalline silicon PV modules under system voltage stress by comparing the module power during degradation outdoors to that in accelerated testing at three temperatures and 85% relative humidity. A lognormal analysis is applied to the accelerated lifetime test data considering failure at 80% of the initial module power. Activation energy of 0.73 eV for the rate of failure is determined, and the probability of module failure at an arbitrary temperature is predicted. To obtain statistical data for multiple modules over the course of degradation in-situ of the test chamber, dark I-V measurements are obtained and transformed using superposition, which is found well suited for rapid and quantitative evaluation of potential-induced degradation. It is determined that shunt resistance measurements alone do not represent the extent of power degradation. This is explained with a two-diode model analysis that shows an increasing second diode recombination current and ideality factor as the degradation in module power progresses. Failure modes of the modules stressed outdoors are examined and compared to those stressed in accelerated tests.

Hacke, P.; Smith, R.; Terwiliger, K.; Glick, S.; Jordan, D.; Johnston, S.; Kempe, M.; Kurtz, S.

2012-07-01T23:59:59.000Z

308

Abstract 3076: A fully automated q-PCR-based circulating tumor cell analysis using the Alere TM q-Analyzer test platform  

Science Journals Connector (OSTI)

...analysis using the Alere TM q-Analyzer test platform Stephan Hubold 1 Ivan Loncarevic...patients. Material and Methods: The CTC test platform consists of the portable q-Analyzer instrument and a disposable test-specific cartridge accommodating all...

Stephan Hubold; Ivan Loncarevic; Jana Thiele; Maren Bredemeier; Heidi Klemm; Heike Klabunde; Danny Michel; Rainer Kimmig; Siegfried Hauch; Bahriye Aktas; Eugen Ermantraut; Sabine Kasimir-Bauer

2014-10-01T23:59:59.000Z

309

Verification Testing Test Driven Development Testing with JUnit Verification  

E-Print Network (OSTI)

Verification Testing Test Driven Development Testing with JUnit Verification Any activity should be verified. #12;Verification Testing Test Driven Development Testing with JUnit Approaches to verification 1 Testing 2 Static Analysis · Peer review · Insepction/Walk-through/Structured review · Formal

Peters, Dennis

310

Analysis of fractures in volcanic cores from Pahute Mesa, Nevada Test Site  

SciTech Connect

The Nevada Test Site (NTS), located in Nye County, southern Nevada, was the location of 828 announced underground nuclear tests, conducted between 1951 and 1992. Approximately one-third of these tests were detonated near or below the water table. An unavoidable consequence of these testing activities was introducing radionuclides into the subsurface environment, impacting groundwater. Groundwater flows beneath the NTS almost exclusively through interconnected natural fractures in carbonate and volcanic rocks. Information about these fractures is necessary to determine hydrologic parameters for future Corrective Action Unit (CAU)-specific flow and transport models which will be used to support risk assessment calculations for the U.S. Department of Energy, Nevada Operations Office (DOE/NV) Underground Test Area (UGTA) remedial investigation. Fracture data are critical in reducing the uncertainty of the predictive capabilities of CAU-specific models because of their usefulness in generating hydraulic conductivity values and dispersion characteristics used in transport modeling. Specifically, fracture aperture and density (spacing) are needed to calculate the permeability anisotropy of the formations. Fracture mineralogy information is used qualitatively to evaluate diffusion and radionuclide retardation potential in transport modeling. All these data can best be collected through examination of core samples.

Drellack, S.L. Jr.; Prothro, L.B.; Roberson, K.E. [and others

1997-09-01T23:59:59.000Z

311

Thermal drawdown analysis of the Hijiori HDR 90-day circulation test  

SciTech Connect

The Hijiori 90-day circulation test is unique in the development of HDR technology in that it was the first (and thus far the only) multiproduction well test run for a sufficient production period to obtain observed cooldown curves at multiple production horizons in the stimulated reservoir volume. The experimental data have been analyzed by the SGP 1-D linear heat sweep model to examine the extent of thermal cooldown in this relatively small, multi-well, multi-zone reservoir. Although changes in production flow were carried out in specific wells at specific times during the 90 days of circulation, matching of the observed cooldown curves in conjunction with the structural and temperature logging data allows estimation of the reservoir volume and the mean fracture spacing between rock blocks for heat extraction during the 90-day test.

Kruger, Paul; Yamaguchi, Tsutomu

1993-01-28T23:59:59.000Z

312

Strategic Petroleum Reserve oil-storage cavern: West Hackberry 6 recertification tests and analysis  

SciTech Connect

The final cavern pressure test and well leak test made in June-July 1981 indicated combined oil leakage from the three cavern entry wells will be well within the DOE leak rate criterion of 100 bbls/y per cavern at the most severe design operating conditions of the cavern. The tests did not indicate conclusively that there was no leakage from the cavern other than from the wells. However, they did give a positive indication of no leakage to cavern 9, the nearest cavern about 200 feet away. It is believed that serious structural failure of the cavern is unlikely during long term oil storage at normal pressures, or during accidental depressurization to oil head pressures.

Goin, K.L.

1982-03-01T23:59:59.000Z

313

Analysis of the FLECHT SEASET unblocked bundle steam-cooling and boiloff tests. [PWR  

SciTech Connect

A series of forced convection steam cooling tests at low Reynolds numbers and bundle boiloff tests were conducted in the unblocked bundle task of the FLECHT SEASET program. The COBRA-IV-I computer code was utilized to simulate the steam cooling tests, so that the effects of the housing, disconnected heater rods in the bundle, and subchannel mixing were accurately accounted for. After careful data screening, a steady-state forced convection steam cooling heat transfer correlation was developed using the measured heater rod power, heater rod surface temperatures calculated from the measured cladding inner surface temperature by an inverse conduction code, and the vapor temperatures at various subchannels calculated by the COBRA-IV-I code The new correlation was found to give higher heat transfer than the conventional Dittus-Boelter correlation in the low Reynolds number region. At higher Reynolds numbers, the data begin to merge with the Dittus-Boelter correlation.

Wong, S.; Hochreiter, L.E.

1981-05-01T23:59:59.000Z

314

Finite Element Analysis of the Amontons-Coulomb's Model using Local and Global Friction Tests  

SciTech Connect

In spite of the abundant number of experimental friction tests that have been reported, the contact with friction modeling persists to be one of the factors that determine the effectiveness of sheet metal forming simulation. This difficulty can be understood due to the nature of the friction phenomena, which comprises the interaction of different factors connected to both sheet and tools' surfaces. Although in finite element numerical simulations friction models are commonly applied at the local level, they normally rely on parameters identified based on global experimental tests results. The aim of this study is to analyze the applicability of the Amontons-Coulomb's friction coefficient identified using complementary tests: (i) load-scanning, at the local level and (ii) draw-bead, at the global level; to the numerical simulation of sheet metal forming processes.

Oliveira, M. C.; Menezes, L. F.; Ramalho, A. [CEMUC, Department of Mechanical Engineering, University of Coimbra, Polo II, Rua Luis Reis Santos, Pinhal de Marrocos, 3030-788 Coimbra (Portugal); Alves, J. L. [Department of Mechanical Engineering, University of Minho, Campus de Azurem, 4800-058, Guimaraes (Portugal)

2011-05-04T23:59:59.000Z

315

RETRAN-02 analysis of loss-of-fluid test experiments L9-3 and L9-4  

SciTech Connect

Two simulations of pressurized water reactor (PWR) anticipated transient without scram (ATWS) sequences were performed in the loss-of-fluid test (LOFT) facility. These were designated as tests L9-3 and L9-4. Test L9-3 is a loss-of-feedwater transient, while L9-4 simulates an ATWS accompanied by loss of off-site power. In the latter case, the main steam valve and primary circulation pumps are tripped at the beginning of the experiment, along with the steam generator feedwater flow. The behavior of these experiments was analyzed with the RETRAN-02 computer code in order to evaluate the capability of the code to predict ATWS behavior against the experimental evidence exhibited by LOFT. The complex sequence of events, which occurs in L9-3, creates a difficult system modeling problem. The primary influence on the entire system response is the steam generator heat transfer rate (given core power as a boundary condition). Results of the analysis demonstrate how the course of the computer calculation is influenced by the steam generator model and its initial conditions. Test L9-4 does not contain the thermal-hydraulic complexity of test L9-3 due to the immediate isolation of the steam generator. Nonetheless, it reinforces the general conclusion that RETRAN-02 will produce an adequate simulation of PWR ATWS behavior if the initial and boundary conditions are completely defined.

Farman, R.F.; Chao, J.; Hendrix, C.E.

1985-07-01T23:59:59.000Z

316

Strategic petroleum reserve (SPR): oil-storage cavern, Sulphur Mines 6 certification tests and analysis. [Louisiana  

SciTech Connect

Well leak tests and a cavern pressure test were conducted in June and July 1981 and indicated that oil leakage from the cavern is unlikely to exceed the DOE criterion if oil is stored at near atmospheric wellhead brine pressures and higher pressures are only used for short periods of oil fill and withdrawal. The data indicate that cavern structural failure during oil storage is unlikely and that there was no leakage from cavern 6 to the adjacent cavern 7. Because of the proximity of cavern 6 to cavern 7, it is recommended that a similar type of oil be stored in these two caverns.

Beasley, R.R.

1982-04-01T23:59:59.000Z

317

Electric coheating as a means to test duct efficiency: A review and analysis of the literature  

SciTech Connect

Recent published literature on electric coheating was reviewed in order to assess its suitability for use in a method of test for the efficiency of residential duct systems. Electric coheating is the research use of electric heaters within the heated space to assess the thermal integrity of the building envelope. Information was sought in two primary areas: (1) experimental methodology and (2) accuracy of the coheating method. A variety of experimental variations was found, and the method was judged, on the basis of published data, to be capable of sufficient accuracy for use in duct testing.

Andrews, J.W.

1995-08-01T23:59:59.000Z

318

Vortex Diode Analysis and Testing for Fluoride Salt-Cooled High-Temperature Reactors  

SciTech Connect

Fluidic diodes are presently being considered for use in several fluoride salt-cooled high-temperature reactor designs. A fluidic diode is a passive device that acts as a leaky check valve. These devices are installed in emergency heat removal systems that are designed to passively remove reactor decay heat using natural circulation. The direct reactor auxiliary cooling system (DRACS) uses DRACS salt-to-salt heat exchangers (DHXs) that operate in a path parallel to the core flow. Because of this geometry, under normal operating conditions some flow bypasses the core and flows through the DHX. A flow diode, operating in reverse direction, is-used to minimize this flow when the primary coolant pumps are in operation, while allowing forward flow through the DHX under natural circulation conditions. The DRACSs reject the core decay heat to the environment under loss-of-flow accident conditions and as such are a reactor safety feature. Fluidic diodes have not previously been used in an operating reactor system, and therefore their characteristics must be quantified to ensure successful operation. This report parametrically examines multiple design parameters of a vortex-type fluidic diode to determine the size of diode needed to reject a particular amount of decay heat. Additional calculations were performed to size a scaled diode that could be tested in the Oak Ridge National Laboratory Liquid Salt Flow Loop. These parametric studies have shown that a 152.4 mm diode could be used as a test article in that facility. A design for this diode is developed, and changes to the loop that will be necessary to test the diode are discussed. Initial testing of a scaled flow diode has been carried out in a water loop. The 150 mm diode design discussed above was modified to improve performance, and the final design tested was a 171.45 mm diameter vortex diode. The results of this testing indicate that diodicities of about 20 can be obtained for diodes of this size. Experimental results show similar trends as the computational fluid dynamics (CFD) results presented in this report; however, some differences exist that will need to be assessed in future studies. The results of this testing will be used to improve the diode design to be tested in the liquid salt loop system.

Yoder Jr, Graydon L [ORNL; Elkassabgi, Yousri M. [Texas A& M University, Kingsville; De Leon, Gerardo I. [Texas A& M University, Kingsville; Fetterly, Caitlin N. [Texas A& M University, Kingsville; Ramos, Jorge A. [Texas A& M University, Kingsville; Cunningham, Richard Burns [University of Tennessee, Knoxville (UTK)

2012-02-01T23:59:59.000Z

319

Using Uncertainty Analysis to Guide the Development of Accelerated Stress Tests (Presentation)  

SciTech Connect

Extrapolation of accelerated testing to the long-term results expected in the field has uncertainty associated with the acceleration factors and the range of possible stresses in the field. When multiple stresses (such as temperature and humidity) can be used to increase the acceleration, the uncertainty may be reduced according to which stress factors are used to accelerate the degradation.

Kempe, M.

2014-03-01T23:59:59.000Z

320

Performance Test and Energy Saving Analysis of a Heat Pipe Dehumidifier  

E-Print Network (OSTI)

Heat pipe technology applied to ventilation, dryness, and cooling and heating radiator in a building is introduced in this paper. A new kind of heat pipe dehumidifier is designed and tested. The energy-saving ratio with the heat pipe dehumidifier...

Zhao, X.; Li, Q.; Yun, C.

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Mapping subsurface radionuclide migration and groundwater flow with organic tracers. [Shallow-land burial  

SciTech Connect

At Pacific Northwest Laboratory we have had the opportunity to study the subsurface migration of radionuclides at the Maxey Flats burial site. We constructed an experimental study area adjacent to one of the waste-filled trenches at the site. In this report we describe some preliminary results of organic research currently underway at Maxey Flats. This research is aimed at: (1) elucidating the role of organic species in the subsurface migration of radionuclides; and (2) testing the usefulness of artificial and in situ organic groundwater tracers for mapping radionuclide migration and groundwater flow. We also describe two analytical procedures developed for this research. First, as part of a survey study of organics in Maxey Flats groundwater we have developed a procedure for the isolation and characterization of trace levels of organics in radioactive groundwaters. Second, for a detailed chemical speciation study we developed a procedure based on steric exclusion chromatography for testing whether or not organics are chelated to radionuclides. 1 figure, 1 table.

Toste, A.P.; Kirby, L.J.; Pahl, T.R.; Myers, R.B.

1983-10-01T23:59:59.000Z

322

Coupled Analysis of Change in Fracture Permeability during the Cooling Phase of the Yucca Mountain Drift Scale Test  

SciTech Connect

This paper presents results from a coupled thermal, hydrological and mechanical analysis of thermally-induced permeability changes during heating and cooling of fractured volcanic rock at the Drift Scale Test at Yucca Mountain, Nevada. The analysis extends the previous analysis of the four-year heating phase to include newly available data from the subsequent four year cooling phase. The new analysis of the cooling phase shows that the measured changes in fracture permeability follows that of a thermo-hydro-elastic model on average, but at several locations the measured permeability indicates (inelastic) irreversible behavior. At the end of the cooling phase, the air-permeability had decreased at some locations (to as low as 0.2 of initial), whereas it had increased at other locations (to as high as 1.8 of initial). Our analysis shows that such irreversible changes in fracture permeability are consistent with either inelastic fracture shear dilation (where permeability increased) or inelastic fracture surface asperity shortening (where permeability decreased). These data are important for bounding model predictions of potential thermally-induced changes in rock-mass permeability at a future repository at Yucca Mountain.

Rutqvist, Jonny; Rutqvist, J.; Freifeld, B.; Tsang, Y.W.; Min, K.B.; Elsworth, D.

2008-06-01T23:59:59.000Z

323

Analysis of molten debris freezing and wall erosion during a severe RIA test. [PWR; BWR  

SciTech Connect

A one-dimensional physical model was developed to study the transient freezing of the molten debris layer (a mixture of UO/sub 2/ fuel and zircaloy cladding) produced in a severe reactivity initiated accident in-pile test and deposited on the inner surface of the test shroud wall. The wall had a finite thickness and was cooled along its outer surface by coolant bypass flow. Analyzed are the effects of debris temperature, radiation cooling at the debris layer surface, zircaloy volume ratio within the debris, and initial wall temperature on the transient freezing of the debris layer and the potential melting of the wall. The governing equations of this two-component, simultaneous freezing and melting problem in a finite geometry were solved using a one-dimensional finite element code based on the method of weighted residuals.

El-Genk, M.S.; Moore, R.L.

1980-01-01T23:59:59.000Z

324

Analysis of Sandwich Shells with Metallic Foam Cores based on the Uniaxial Tensile Test  

SciTech Connect

On this work, the authors present the development and evaluation of an innovative system able to perform reliable panels of sandwich sheets with metallic foam cores for industrial applications, especially in automotive and aeronautical industries. This work is divided into two parts; in the first part the mathematical model used to describe the behavior of sandwich shells with metal cores form is presented and some numerical examples are presented. In the second part of this work, the numerical results are validated using the experimental results obtained from the mechanical experiments. Using the isotropic hardening crushable foam constitutive model, available on ABAQUS, a set of different mechanical tests were simulated. The isotropic hardening model available uses a yield surface that is an ellipse centered at the origin in the p-q stress plane. Using this constitutive model, the uniaxial tensile test for this material was simulated, and a comparison with the experimental results was made.

Mata, H.; Fernandes, A. A.; Parente, M. P. L.; Jorge, R. Natal [IDMEC-FEUP, Rua Dr. Roberto Frias, 4200-465, Porto (Portugal); Santos, A. [INEGI, Rua Dr. Roberto Frias, 4200-465, Porto (Portugal); Valente, R. A. F. [Universidade de Aveiro, Campus Universitario de Santiago, 3810-193, Aveiro (Portugal)

2011-05-04T23:59:59.000Z

325

Spent fuel sabotage test program, characterization of aerosol dispersal : technical review and analysis supplement.  

SciTech Connect

This project seeks to provide vital data required to assess the consequences of a terrorist attack on a spent fuel transportation cask. One such attack scenario involves the use of conical shaped charges (CSC), which are capable of damaging a spent fuel transportation cask. In the event of such an attack, the amount of radioactivity that may be released as respirable aerosols is not known with great certainty. Research to date has focused on measuring the aerosol release from single short surrogate fuel rodlets subjected to attack by a small CSC device in various aerosol chamber designs. The last series of three experiments tested surrogate fuel rodlets made with depleted uranium oxide ceramic pellets in a specially designed double chamber aerosol containment apparatus. This robust testing apparatus was designed to prevent any radioactive release and allow high level radioactive waste disposal of the entire apparatus following testing of actual spent fuel rodlets as proposed. DOE and Sandia reviews of the project to date identified a number of issues. The purpose of this supplemental report is to address and document the DOE review comments and to resolve the issues identified in the Sandia technical review.

Durbin, Samuel G.; Lindgren, Eric Richard

2009-07-01T23:59:59.000Z

326

Effect of room air recirculation delay on the decay rate of tracer gas  

NLE Websites -- All DOE Office Websites (Extended Search)

Effect of room air recirculation delay on the decay rate of tracer gas Effect of room air recirculation delay on the decay rate of tracer gas concentration Title Effect of room air recirculation delay on the decay rate of tracer gas concentration Publication Type Journal Article Year of Publication 2007 Authors Lorenzetti, David M., Astrid H. Kristoffersen, and Ashok J. Gadgil Journal Indoor Air Pagination 7 Keywords recirculating ventilation, tracer decay rate Abstract Tracer gas measurements are used to estimate the flow rate of fresh air into a room or building. These methods commonly account for the decay of tracer gas concentration as the result of ventilation air supply and infiltration, using a well-mixed model of the space. Some researchers also have considered the effect of leakage in the ventilation ductwork. This paper considers the effect of recirculation through ventilation ducts on the calculated fresh air supply rate. Transport delay in the ducts can significantly alter the time evolution of tracer concentration, and hence alter the estimated air change rate.

327

Fault degradation assessment of water hydraulic motor by impulse vibration signal with Wavelet Packet Analysis and KolmogorovSmirnov Test  

Science Journals Connector (OSTI)

The machinery fault diagnosis is important for improving reliability and performance of systems. Many methods such as Time Synchronous Average (TSA), Fast Fourier Transform (FFT)-based spectrum analysis and short-time Fourier transform (STFT) have been applied in fault diagnosis and condition monitoring of mechanical system. The above methods analyze the signal in frequency domain with low resolution, which is not suitable for non-stationary vibration signal. The KolmogorovSmirnov (KS) test is a simple and precise technique in vibration signal analysis for machinery fault diagnosis. It has limited use and advantage to analyze the vibration signal with higher noise directly. In this paper, a new method for the fault degradation assessment of the water hydraulic motor is proposed based on Wavelet Packet Analysis (WPA) and KS test to analyze the impulsive energy of the vibration signal, which is used to detect the piston condition of water hydraulic motor. WPA is used to analyze the impulsive vibration signal from the casing of the water hydraulic motor to obtain the impulsive energy. The impulsive energy of the vibration signal can be obtained by the multi-decomposition based on Wavelet Packet Transform (WPT) and used as feature values to assess the fault degradation of the pistons. The kurtosis of the impulsive energy in the reconstructed signal from the Wavelet Packet coefficients is used to extract the feature values of the impulse energy by calculating the coefficients of the WPT multi-decomposition. The KS test is used to compare the kurtosis of the impulse energy of the vibration signal statistically under the different piston conditions. The results show the applicability and effectiveness of the proposed method to assess the fault degradation of the pistons in the water hydraulic motor.

H.X. Chen; Patrick S.K. Chua; G.H. Lim

2008-01-01T23:59:59.000Z

328

Variable rate analysis of transient well test data using semi-analytical methods  

E-Print Network (OSTI)

. 4. 2. 1 Fetkovich and Vienot Data. . 4. 2. 2 Streltsova Data . 4. 2. 3 Low Productivity Gas Well DS-1 4. 2. 4 Low Productivity Gas Well CSW-1. 4. 2. 5 Low Productivity Gas Well AC-6. . 4. 2. 6 Low Productivity Gas Well TGA-21 4. 2. 7 Low... with the Material Balance Deconvolution Method and Calculated Sandface Rates . . . . . . . . . . . . . . . . . . 75 4. 1 Reservoir and Fluid Properties and Comparison of Analysis Results for Rate Normalization and Material Balance Deconvolution - Fetkovich...

Johnston, Jennifer L.

1992-01-01T23:59:59.000Z

329

An Inverse Finite Element Analysis and A Parametric Study of Small Punch Tests  

E-Print Network (OSTI)

-displacement curve of 40CrNi2Mo alloy steel (Guan et al., 2011) ....... 21 Fig. 2.8 Estimate of the first step displacement ........................................................... 22 Fig. 2.9 FE simulation results with ? = 800 MPa at ? = 0...-strain curve of 40CrNi2Mo alloy steel from the inverse FE x analysis of the SPT ......................................................................................... 28 Fig. 2.18 1.25Cr0.5Mo alloy steel elastic modulus and yield...

Xu, Zhenzhen

2012-02-14T23:59:59.000Z

330

Engineering Evaluation/Cost Analysis for Decommissioning of the Engineering Test Reactor Complex  

SciTech Connect

Preparation of this Engineering Evaluation/Cost Analysis is consistent with the joint U.S. Department of Energy and U.S. Environmental Protection Agency Policy on Decommissioning of Department of Energy Facilities Under the Comprehensive Environmental Response, Compensation, and Liability Act, which establishes the Comprehensive Environmental Response, Compensation, and Liability Act non-time-critical removal action (NTCRA) process as an approach for decommissioning.

A. B. Culp

2006-10-01T23:59:59.000Z

331

Standard test methods for chemical, mass spectrometric, spectrochemical, nuclear, and radiochemical analysis of nuclear-grade uranyl nitrate solutions  

E-Print Network (OSTI)

1.1 These test methods cover procedures for the chemical, mass spectrometric, spectrochemical, nuclear, and radiochemical analysis of nuclear-grade uranyl nitrate solution to determine compliance with specifications. 1.2 The analytical procedures appear in the following order: Sections Determination of Uranium 7 Specific Gravity by Pycnometry 15-20 Free Acid by Oxalate Complexation 21-27 Determination of Thorium 28 Determination of Chromium 29 Determination of Molybdenum 30 Halogens Separation by Steam Distillation 31-35 Fluoride by Specific Ion Electrode 36-42 Halogen Distillate Analysis: Chloride, Bromide, and Iodide by Amperometric Microtitrimetry 43 Determination of Chloride and Bromide 44 Determination of Sulfur by X-Ray Fluorescence 45 Sulfate Sulfur by (Photometric) Turbidimetry 46 Phosphorus by the Molybdenum Blue (Photometric) Method 54-61 Silicon by the Molybdenum Blue (Photometric) Method 62-69 Carbon by Persulfate Oxidation-Acid Titrimetry 70 Conversion to U3O8 71-74 Boron by ...

American Society for Testing and Materials. Philadelphia

1999-01-01T23:59:59.000Z

332

An analysis of test effectiveness via surrogate simulation of a commercial IC  

E-Print Network (OSTI)

calculations for both test sets 23 LIST OF FIGURES FIGURE Page An arbitrary circuit with points P and Q inside Example of the detection of a stuck-at fault Example of the detection of two bridging surrogates . General usage of FastScan+~ Flow chart... of bridging surrogate simulation 21 Defective part level prediction using stuck-at faults DO-RE-ME bridging detections and ATPG stuck-at detections Matching the MPG-D prediction to briclging detections . Cumulat&ve defective part level contribution of each...

Wicker, Jason David

2001-01-01T23:59:59.000Z

333

Tracers for monitoring the activity of sodium/glucose cotransporters in health and disease  

DOE Patents (OSTI)

Radiolabeled tracers for sodium/glucose cotransporters (SGLTs), their synthesis, and their use are provided. The tracers are methyl or ethyl pyranosides having an equatorial hydroxyl group at carbon-2 and a C 1 preferred conformation, radiolabeled with .sup.18F, .sup.123I, or .sup.124I, or free hexoses radiolabeled with .sup.18F, .sup.123I, or .sup.124. Also provided are in vivo and in vitro techniques for using these and other tracers as analytical and diagnostic tools to study glucose transport, in health and disease, and to evaluate therapeutic interventions.

Wright, Ernest M; Barrio, Jorge R; Hirayama, Bruce A; Kepe, Vladimir

2014-09-30T23:59:59.000Z

334

FEMCAM Analysis of SULTAN Test Results for ITER Nb3SN Cable-conduit Conductors  

SciTech Connect

Performance degradation due to filament fracture of Nb3 Sn cable-in-conduit conductors (CICCs) is a critical issue in large-scale magnet designs such as ITER which is currently being constructed in the South of France. The critical current observed in most SULTAN TF CICC samples is significantly lower than expected and the voltage-current characteristic is seen to have a much broader transition from a single strand to the CICC. Moreover, most conductors exhibit the irreversible degradation due to filament fracture and strain relaxation under electromagnetic cyclic loading. With recent success in monitoring thermal strain distribution and its evolution under the electromagnetic cyclic loading from in situ measurement of critical temperature, we apply FEMCAM which includes strand filament breakage and local current sharing effects to SULTAN tested CICCs to study Nb3 Sn strain sensitivity and irreversible performance degradation. FEMCAM combines the thermal bending effect during cool down and the EM bending effect due to locally accumulating Lorentz force during magnet operation. It also includes strand filament fracture and related local current sharing for the calculation of cable n value. In this paper, we model continuous performance degradation under EM cyclic loading based on strain relaxation and the transition broadening upon cyclic loading to the extreme cases seen in SULTAN test data to better quantify conductor performance degradation.

Yuhu Zhai, Pierluigi Bruzzone, Ciro Calzolaio

2013-03-19T23:59:59.000Z

335

Perform Tests and Document Results and Analysis of Oxide Layer Effects and Comparisons  

SciTech Connect

During the initial feasibility test using actual used nuclear fuel (UNF) cladding in FY 2012, an incubation period of 3045 minutes was observed in the initial dry chlorination. The cladding hull used in the test had been previously oxidized in a dry air oxidation pretreatment prior to removal of the fuel. The cause of this incubation period was attributed to the resistance to chlorination of an oxide layer imparted by the dry oxidation pretreatment on the cladding. Subsequently in 2013, researchers at the Korea Atomic Energy Institute (KAERI) reported on their chlorination study [R1] on ~9-gram samples of unirradiated ZirloTM cladding tubes that had been previously oxidized in air at 500oC for various time periods to impart oxide layers of varying thickness. In early 2014, discussions with Indefinite Delivery, Indefinite Quantity (IDIQ) contracted technical consultants from Westinghouse described their previous development (and patents) [R2] on methods of chemical washing to remove some or all of the hydrous oxide layer imparted on UNF cladding during irradiation in light water reactors (LWRs) . Thus, the Oak Ridge National Laboratory (ORNL) study, described herein, was planned to extend the KAERI study on the effects of anhydrous oxide layers, but on larger ~100-gram samples of unirradiated zirconium alloy cladding tubes, and to investigate the effects of various methods of chemical pretreatment prior to chlorination with 100% chlorine on the average reaction rates and Cl2 usage efficiencies.

Collins, E. D. [ORNL; DelCul, G. D. [ORNL; Spencer, B. B. [ORNL; Hunt, R. D. [ORNL; Ausmus, C. [ORNL

2014-08-30T23:59:59.000Z

336

Experimental investigation of direct injection charge cooling in optical GDI engine using tracer-based PLIF technique  

Science Journals Connector (OSTI)

Abstract Investigation of direct injection charge cooling effects is indispensable in design and development of new combustion systems for Gasoline Direct Injection (GDI) engines. The charge cooling can be utilized to increase engine volumetric efficiency or compression ratio. It can be employed to suppress pre-ignition of highly boosted downsized engines or knocking combustion of naturally aspirated engines. The main purpose of this work was to develop an experimental setup for quantitative measurements of charge cooling during fuel injection process inside the combustion chamber of a GDI engine with optical access. For this purpose a tracer-based two-line Planar Laser Induced Fluorescence (PLIF) technique was implemented for the measurements. A specially designed Constant Volume Chamber (CVC) was utilized for quasi in situ calibration measurement so in-cylinder charge temperature measurements can be achieved independent of the photophysical model of dopant tracer. The thermometry technique was evaluated by measurements of average in-cylinder charge temperature during compression stroke for both motoring and firing cycles and comparing the results with temperature values calculated from in-cylinder pressure data assuming a polytropic compression. The PLIF technique was successfully utilized to quantify the extend of global temperature decrease as a result of direct injection charge cooling of two injection timings of 90 and 250CA ATDC and two injection quantities of 10 and 30mg/cycle. Test results demonstrated the capability of the two-line PLIF thermometry technique in quantitative study of direct injection charge cooling effects.

Mohammadreza Anbari Attar; Mohammad Reza Herfatmanesh; Hua Zhao; Alasdair Cairns

2014-01-01T23:59:59.000Z

337

Analysis of molybdenum-99 production capability in the materials test station  

SciTech Connect

The United States of America currently relies on foreign suppliers to meet all of it needs for molybdenum-99 (Mo-99) used in medical diagnostic procedures. The current US demand is at least 5000 six-day curies per week. Neutronics calculations have been performed to assess whether the proposed Materials Test Station (MTS) could potentially generate Mo-99. Two target material options have been explored for Mo-99 production in the MTS: low enriched uranium (LEU) and Tc-99. For LEU, scoping calculations indicate that MTS can supply nearly half of the current US demand with only minor neutronic impact on the MTS primary mission. For the Tc-99 option, the MTS could produce about one-tenth of the US demand.

Pitcher, Eric J [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

338

Analysis of relative permeability effects upon the results from drillstem tests  

E-Print Network (OSTI)

in this investigation is Table 1. Table 1 GRID SPACING USED TO SIMULATE A DRILLSTEM TEST Grid Block No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Grid Spacing Used in Original Study8 (Ft) 0. 001 0. 0026 0. 0417 0. 0833 0. 1667 0. 25... Hours of Imbibition Cadomin Formation, Base Case lp' 10 5 10 m 1P Formation Penleabi I i ty 0. 01 ad + 0. 1 rrd 0 1. 0 ml 4 10. 0 ml IM. O ml ip 2 i3 1P UJ -100 10 1 0 2 10 " 10 ' 10 7 INE, days 10 Fig. 8-Water-Gas Ratio Curves...

Peterson, Susan Kathleen

1985-01-01T23:59:59.000Z

339

Project definition study for the National Biomedical Tracer Facility  

SciTech Connect

The University of Alabama at Birmingham (UAB) has conducted a study of the proposed National Biomedical Tracer Facility (NBTF). In collaboration with General Atomics, RUST International, Coleman Research Corporation (CRC), IsoMed, Ernst and Young and the advisory committees, they have examined the issues relevant to the NBTF in terms of facility design, operating philosophy, and a business plan. They have utilized resources within UAB, CRC and Chem-Nuclear to develop recommendations on environmental, safety and health issues. The Institute of Medicine Panel`s Report on Isotopes for Medicine and the Life Sciences took the results of prior workshops further in developing recommendations for the mission of the NBTF. The IOM panel recommends that the NBTF accelerator have the capacity to accelerate protons to 80 MeV and a minimum of 750 microamperes of current. The panel declined to recommend a cyclotron or a linac. They emphasized a clear focus on research and development for isotope production including target design, separation chemistry and generator development. The facility needs to emphasize education and training in its mission. The facility must focus on radionuclide production for the research and clinical communities. The formation of a public-private partnership resembling the TRIUMF-Nordion model was encouraged. An advisory panel should assist with the NBTF operations and prioritization.

Roozen, K.

1995-02-15T23:59:59.000Z

340

Tracer diffusion in compacted, water-saturated bentonite  

SciTech Connect

Compacted Na-bentonite clay barriers, widely used in theisolation of solid-waste landfills and other contaminated sites, havebeen proposed for a similar use in the disposal of high-level radioactivewaste. Molecular diffusion through the pore space in these barriers playsa key role in their performance, thus motivating recent measurements ofthe apparent diffusion coefficient tensor of water tracers in compacted,water-saturated Na-bentonites. In the present study, we introduce aconceptual model in which the pore space of water-saturated bentonite isdivided into 'macropore' and 'interlayer nanopore' compartments. Withthis model we determine quantitatively the relative contributions ofpore-network geometry (expressed as a geometric factor) and of thediffusive behavior of water molecules near montmorillonite basal surfaces(expressed as a contristivity factor) to the apparent diffusioncoefficient tensor. Our model predicts, in agreement with experiment,that the mean principal value of the apparent diffusion coefficienttensor follows a single relationship when plotted against the partialmontmorillonite dry density (mass of montmorillonite per combined volumeof montmorillonite and pore space). Using a single fitted parameter, themean principal geometric factor, our model successfully describes thisrelationship for a broad range of bentonite-water system, from dilute gelto highly-compacted bentonite with 80 percent of its pore water ininterlayer nanopores.

Bourg, Ian C.; Sposito, Garrison; Bourg, Alain C.M.

2005-08-04T23:59:59.000Z

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Processing and geologic analysis of conventional cores from well ER-20-6 No. 1, Nevada Test Site  

SciTech Connect

In 1996, Well Cluster ER-20-6 was drilled on Pahute Mesa in Area 20, in the northwestern corner of the Nevada Test Site (NTS). The three wells of the cluster are located from 166 to 296 meters (m) (544 to 971 feet [ft]) southwest of the site of the underground nuclear test code-named BULLION, conducted in 1990 in Emplacement Hole U-20bd. The well cluster was planned to be the site of a forced-gradient experiment designed to investigate radionuclide transport in groundwater. To obtain additional information on the occurrence of radionuclides, nature of fractures, and lithology, a portion of Well ER-20-6 No. 1, the hole closest to the explosion cavity, was cored for later analysis. Bechtel Nevada (BN) geologists originally prepared the geologic interpretation of the Well Cluster ER-20-6 site and documented the geology of each well in the cluster. However, the cores from Well ER-20-6 No. 1 were not accessible at the time of that work. As the forced-gradient experiment and other radio nuclide migration studies associated with the well cluster progressed, it was deemed appropriate to open the cores, describe the geology, and re-package the core for long-term air-tight storage. This report documents and describes the processing, geologic analysis, and preservation of the conventional cores from Well ER20-6 No. 1.

Prothro, L.B., Townsend, M.J.; Drellack, S.L. Jr. [and others

1997-09-01T23:59:59.000Z

342

Carbon sequestration and estimated carbon credit values as measured using 13C labelling and analysis by means of an optical breath test analyser  

Science Journals Connector (OSTI)

Recent developments in optical systems (isotope-selective non-dispersive infrared spectrometry) for breath testing have provided a robust, low-cost option for undertaking 13C analysis. Although these systems were...

R. C. Hood; M. Khan; A. Haque; M. Khadir

2004-05-01T23:59:59.000Z

343

Recovery Act:Direct Confirmation of Commercial Geothermal Resources in Colorado Using Remoter Sensing and On-Site Exploration, Testing and Analysis  

Energy.gov (U.S. Department of Energy (DOE))

Recovery Act:Direct Confirmation of Commercial Geothermal Resources in Colorado Using Remoter Sensing and On-Site Exploration, Testing and Analysis presentation at the April 2013 peer review meeting held in Denver, Colorado.

344

Wintertime Dispersion in a Mountainous Basin at Roanoke, Virginia: Tracer Study  

Science Journals Connector (OSTI)

During January 1989, five nighttime SF6 tracer experiments were conducted in Roanoke, Virginia. The experiments were designed to help identify and understand the dispersion characteristics of a basin atmosphere during winter stagnation ...

K. Jerry Allwine; Brian K. Lamb; Robert Eskridge

1992-11-01T23:59:59.000Z

345

Overview of New Tools to Perform Safety Analysis: BWR Station Black Out Test Case  

SciTech Connect

Dynamic Probabilistic Risk Assessment (DPRA) methodologies couple system simulator codes (e.g., RELAP, MELCOR) with simulation controller codes (e.g., RAVEN, ADAPT). While system simulator codes accurately model system dynamics deterministically, simulation controller codes introduce both deterministic (e.g., system control logic, operating procedures) and stochastic (e.g., component failures, parameter uncertainties) elements into the simulation. Typically, a DPRA is performed by: 1) sampling values of a set of parameters from the uncertainty space of interest (using the simulation controller codes), and 2) simulating the system behavior for that specific set of parameter values (using the system simulator codes). For complex systems, one of the major challenges in using DPRA methodologies is to analyze the large amount of information (i.e., large number of scenarios ) generated, where clustering techniques are typically employed to allow users to better organize and interpret the data. In this paper, we focus on the analysis of a nuclear simulation dataset that is part of the Risk Informed Safety Margin Characterization (RISMC) Boiling Water Reactor (BWR) station blackout (SBO) case study. We apply a software tool that provides the domain experts with an interactive analysis and visualization environment for understanding the structures of such high-dimensional nuclear simulation datasets. Our tool encodes traditional and topology-based clustering techniques, where the latter partitions the data points into clusters based on their uniform gradient flow behavior. We demonstrate through our case study that both types of clustering techniques complement each other in bringing enhanced structural understanding of the data.

D. Mandelli; C. Smith; T. Riley; J. Nielsen; J. Schroeder; C. Rabiti; A. Alfonsi; Cogliati; R. Kinoshita; V. Pasucci; B. Wang; D. Maljovec

2014-06-01T23:59:59.000Z

346

Watts Bar Unit 1 Cycle Zero Power Physics Tests Analysis with VERA-CS  

SciTech Connect

The Consortium for Advanced Simulation of Light Water Reactors (CASL) is developing a collection of methods and software products known as VERA, the Virtual Environment for Reactor Applications, including a core simulation capability called VERA-CS. A key milestone for this endeavor is to validate VERA against measurements from operating nuclear power reactors. The first step in validation against plant data is to determine the ability of VERA to accurately simulate the initial startup physics tests for Watts Bar Nuclear Power Station, Unit 1 (WBN1) cycle 1. VERA-CS calculations were performed with the Insilico code developed at ORNL using cross section processing from the SCALE system and the transport capabilities within the Denovo transport code using the SPN method. The calculations were performed with ENDF/B-VII.0 cross sections in 252 groups (collapsed to 23 groups for the 3D transport solution). The key results of the comparison of calculations with measurements include initial criticality, control rod worth critical configurations, control rod worth, differential boron worth, and isothermal temperature reactivity coefficient (ITC). The VERA results for these parameters show good agreement with measurements, with the exception of the ITC, which requires additional investigation. Results are also compared to those obtained with Monte Carlo methods and a current industry core simulator.

Gehin, Jess C [ORNL; Godfrey, Andrew T [ORNL; Evans, Thomas M [ORNL; Hamilton, Steven P [ORNL; Francheschini, F. [Westinghouse Electric Company, Cranberry Township

2014-01-01T23:59:59.000Z

347

Chemical analysis and biological testing of materials from the EDS coal liquefaction process: a status report  

SciTech Connect

Representative process materials were obtained from the EDS pilot plant for chemical and biological analyses. These materials were characterized for biological activity and chemical composition using a microbial mutagenicity assay and chromatographic and mass spectrometric analytical techniques. The two highest boiling distillation cuts, as well as process solvent (PS) obtained from the bottoms recycle mode operation, were tested for initiation of mouse skin tumorigenicity. All three materials were active; the crude 800/sup 0 +/F cut was substantially more potent than the crude bottoms recycle PS or 750 to 800/sup 0/F distillate cut. Results from chemical analyses showed the EDS materials, in general, to be more highly alkylated and have higher hydroaromatic content than analogous SRC II process materials (no in-line process hydrogenation) used for comparison. In the microbial mutagenicity assays the N-PAC fractions showed greater activity than did the aliphatic hydrocarbon, hydroxy-PAH, or PAH fractions, although mutagenicity was detected in certain PAH fractions by a modified version of the standard microbial mutagenicity assay. Mutagenic activities for the EDS materials were lower, overall, than those for the corresponding materials from the SRC II process. The EDS materials produced under different operational modes had distinguishable differences in both their chemical constituency and biological activity. The primary differences between the EDS materials studied here and their SRC II counterparts used for comparison are most likely attributable to the incorporation of catalytic hydrogenation in the EDS process. 27 references, 28 figures, 27 tables.

Later, D.W.; Pelroy, R.A.; Wilson, B.W.

1984-05-01T23:59:59.000Z

348

Rationale for the H-19 and H-11 tracer tests at the WIPP site  

SciTech Connect

The Waste Isolation Pilot Plant (WIPP) is a repository for transuranic wastes constructed in bedded Permian-age halite in the Delaware Basin, a sedimentary basin in southeastern New Mexico, USA. A drilling scenario has been identified during performance assessment (PA) that could lead to the release of radionuclides to the Culebra Dolomite Member of the Rustler Formation, the most transmissive water-saturated unit above the repository horizon. Were this to occur, the radionuclides would need to be largely contained within the Culebra (or neighboring strata) within the WIPP-site boundary through the period lasting for 10,000 years after repository closure for WIPP to remain in compliance with applicable regulations on allowable releases. Thus, processes affecting transport of radionuclides within the Culebra are of importance to PA.

Beauheim, R.L.; Meigs, L.C.; Davies, P.B.

1996-12-31T23:59:59.000Z

349

Testing the Efficiency of a Stormwater Runoff Treatment Structure with Anthropogenic Tracers  

Science Journals Connector (OSTI)

...widespread application of agrochemicals-clearly impinges on the...1985) studied the chemical composition of stormwater runoff from...1 represented the average composition of the sediment removed by...and determination of the composition of the solids that settle...

THOMAS B. BOVING; KEVIN NEARY

350

Composite Analysis for the Area 5 Radioactive Waste Management Site at the Nevada Test Site, Nye County, Nevada  

SciTech Connect

This report summarizes the results of a Composite Analysis (CA) for the Area 5 Radioactive Waste Management Site (RWMS). The Area 5 RWMS is a US Department of Energy (DOE)-operated low-level radioactive waste (LLW) management site located in northern Frenchman Flat on the Nevada Test Site (NTS). The Area 5 RWMS has disposed of low-level radioactive waste in shallow unlined pits and trenches since 1960. Transuranic waste (TRU) and high-specific activity waste was disposed in Greater Confinement Disposal (GCD) boreholes from 1983 to 1989. The purpose of this CA is to determine if continuing operation of the Area 5 RWMS poses an acceptable or unacceptable risk to the public considering the total waste inventory and all other interacting sources of radioactive material in the vicinity. Continuing operation of the Area 5 RWMS will be considered acceptable if the total effective dose equivalent (TEDE) is less than 100 mrem in a year. If the TEDE exceeds 30 mrem in a year, a cost-benefit options analysis must be performed to determine if cost-effective management options exist to reduce the dose further. If the TEDE is found to be less than 30 mrem in a year, an analysis may be performed if warranted to determine if doses are as low as reasonably achievable (ALARA).

V. Yucel

2001-09-01T23:59:59.000Z

351

Tests of Cs-137 removal from DWPF samples prior to analysis  

SciTech Connect

The Defense Waste Processing Facility (DWPF) will be used to encapsulate high-level radioactive waste into borosilicate glass at the Savannah River Site. To ensure that the process streams will be blended in the right proportions to produce durable glass, process control analyses will be performed in a laboratory in the DWPF. The high radioactivity of DWPF samples will require that sample preparation, including dissolution and dilution of samples, be performed in shielded cells. However the final analyses will be made with instruments and spectrometers contained in unshielded fume hoods. The primary radiation concern is the exposure to y-rays from the decay of Cs-137 after samples are removed from the shielded cells. Since there are several methods available for removing Cs-137 from samples, investigations were made into removing Cs-137 from DWPF samples prior to analysis in order to reduce worker exposure. Results are presented of the efficiency of various Cs-137 removal techniques and the effects of these techniques on analytical precision and accuracy.

Dewberry, R.A.; Coleman, C.J.

1994-11-10T23:59:59.000Z

352

Test Automation Test Automation  

E-Print Network (OSTI)

Test Automation Test Automation Mohammad Mousavi Eindhoven University of Technology, The Netherlands Software Testing 2013 Mousavi: Test Automation #12;Test Automation Outline Test Automation Mousavi: Test Automation #12;Test Automation Why? Challenges of Manual Testing Test-case design: Choosing inputs

Mousavi, Mohammad

353

Uncertainty analysis for an updated dose assessment for a US nuclear test site: Bikini Atoll  

SciTech Connect

A detailed analysis of uncertainty and interindividual variability in estimated doses was conducted for a rehabilitation scenario for Bikini Island at Bikini Atoll, in which the top 40 cm of soil would be removed in the housing and village area, and the rest of the island is treated with potassium fertilizer, prior to an assumed resettlement date of 1999. Predicted doses were considered for the following fallout-related exposure pathways: ingested Cesium-137 and Strontium-90, external gamma exposure, and inhalation and ingestion of Americium-241 + Plutonium-239+240. Two dietary scenarios were considered: (1) imported foods are available (IA), and (2) imported foods are unavailable (only local foods are consumed) (IUA). Corresponding calculations of uncertainty in estimated population-average dose showed that after {approximately}5 y of residence on Bikini, the upper and lower 95% confidence limits with respect to uncertainty in this dose are estimated to be approximately 2-fold higher and lower than its population-average value, respectively (under both IA and IUA assumptions). Corresponding calculations of interindividual variability in the expected value of dose with respect to uncertainty showed that after {approximately}5 y of residence on Bikini, the upper and lower 95% confidence limits with respect to interindividual variability in this dose are estimated to be approximately 2-fold higher and lower than its expected value, respectively (under both IA and IUA assumptions). For reference, the expected values of population-average dose at age 70 were estimated to be 1.6 and 5.2 cSv under the IA and IUA dietary assumptions, respectively. Assuming that 200 Bikini resettlers would be exposed to local foods (under both IA and IUA assumptions), the maximum 1-y dose received by any Bikini resident is most likely to be approximately 2 and 8 mSv under the IA and IUA assumptions, respectively.

Bogen, K.T.; Conrado, C.L.; Robison, W.L.

1995-11-01T23:59:59.000Z

354

Kruskal-Wallis test: BASIC computer program to perform nonparametric one-way analysis of variance and multiple comparisons on ranks of several independent samples  

Science Journals Connector (OSTI)

Multiple t tests at a fixed p level are frequently used to analyse biomedical data where analysis of variance followed by multiple comparisons or the adjustment of the p values according to Bonferroni would be more appropriate. The Kruskal-Wallis test is a nonparametric analysis of variance which may be used to compare several independent samples. The present program is written in an elementary subset of BASIC and will perform Kruskal-Wallis test followed by multiple comparisons between the groups on practically any computer programmable in BASIC.

Elvar Theodorsson-Norheim

1986-01-01T23:59:59.000Z

355

Assessment of hydrologic transport of radionuclides from the Gnome underground nuclear test site, New Mexico  

SciTech Connect

The U.S. Department of Energy (DOE) is operating an environmental restoration program to characterize, remediate, and close non-Nevada Test Site locations that were used for nuclear testing. Evaluation of radionuclide transport by groundwater from these sites is an important part of the preliminary site risk analysis. These evaluations are undertaken to allow prioritization of the test areas in terms of risk, provide a quantitative basis for discussions with regulators and the public about future work at the sites, and provide a framework for assessing data needs to be filled by site characterization. The Gnome site in southeastern New Mexico was the location of an underground detonation of a 3.5-kiloton nuclear device in 1961, and a hydrologic tracer test using radionuclides in 1963. The tracer test involved the injection of tritium, {sup 90}Sr, and {sup 137}Cs directly into the Culebra Dolomite, a nine to ten-meter-thick aquifer located approximately 150 in below land surface. The Gnome nuclear test was carried out in the Salado Formation, a thick salt deposit located 200 in below the Culebra. Because salt behaves plastically, the cavity created by the explosion is expected to close, and although there is no evidence that migration has actually occurred, it is assumed that radionuclides from the cavity are released into the overlying Culebra Dolomite during this closure process. Transport calculations were performed using the solute flux method, with input based on the limited data available for the site. Model results suggest that radionuclides may be present in concentrations exceeding drinking water regulations outside the drilling exclusion boundary established by DOE. Calculated mean tritium concentrations peak at values exceeding the U.S. Environmental Protection Agency drinking water standard of 20,000 pCi/L at distances of up to almost eight kilometers west of the nuclear test.

Earman, S.; Chapman, J.; Pohlmann, K.; Andricevic, R.

1996-09-01T23:59:59.000Z

356

Value of information analysis for Corrective Action Unit Nos. 101 and 102: Central and western Pahute Mesa, Nevada Test Site, Nevada  

SciTech Connect

The purpose of this report is to describe the basis for and present the results of a value of information analysis (VOIA) for the Pahute Mesa underground test area of the Nevada Test Site (NTS), one of several areas of the Nevada Test Site used for underground nuclear testing in the past. The value of information analysis was used to evaluate and compare potential characterization options at the Pahute Mesa underground test area for site remediation purposes. Thirty six characterization options were evaluated, ranging from a single, inexpensive study using existing data and intended to address a single question or uncertainty, to a forty-million-dollar suite of activities designed to collect and analyze new information to address multiple uncertainties. The characterization options were compared and ranked based on how effective the experts though the information collection would be in reducing uncertainties, how this effected the distance to contaminant boundary, and the cost of the option.

NONE

1998-09-01T23:59:59.000Z

357

REAL-TIME TRACER MONITORING OF RESERVOIR STIMULATION PROCEDURES  

SciTech Connect

Ongoing Phase 2 work comprises the development and field-testing of a real-time reservoir stimulation diagnostic system. Phase 3 work commenced in June 2001, and involved conducting research, development and field-testing of real-time enhanced dual-fluid stimulation processes. Experimental field-testing to date includes three well tests. Application of these real-time stimulation processes and diagnostic technologies has been technically successful with commercial production from the ''marginal'' reservoirs in the first two well tests. The third well test proved downhole-mixing is an efficient process for acid stimulation of a carbonate reservoir that produced oil and gas with 2200 psi bottomhole reservoir pressure, however, subsequent shut-in pressure testing indicated the reservoir was characterized by low-permeability. Realtimezone continues to seek patent protection in foreign markets to the benefit of both RTZ and NETL. Realtimezone and the NETL have licensed the United States patented to Halliburton Energy Services (HES). Ongoing Phase 2 and Phase 3 field-testing continues to confirm applications of both real-time technologies, from well testing conducted over the last 12-month work period and including well test scheduled for year-end of 2002. Technical data transfer to industry is ongoing via Internet tech-transfer, public presentations and industry publications. Final Phase 3 test work will be focused on further field-testing the innovational process of blending stimulation fluids downhole. This system provides a number of advantages in comparison to older industry fracturing techniques and allows the operator to control reservoir fracture propagation and concentrations of proppant placed in the reservoir, in real-time. Another observed advantage is that lower friction pressures result, which results in lower pump treating pressures and safer reservoir hydraulic fracturing jobs.

George Scott III

2002-08-01T23:59:59.000Z

358

Mirror Fusion Test Facility-B (MFTF-B) axicell configuration: NbTi magnet system. Design and analysis summary. Volume 1  

SciTech Connect

This report summarizes the designs and analyses produced by General Dynamics Convair for the four Axicell magnets (A1 and A20, east and west), the four Transition magnets (T1 and T2, east and west), and the twelve Solenoid magnets (S1 through S6, east and west). Over four million drawings and specifications, in addition to detailed stress analysis, thermal analysis, electrical, instrumentation, and verification test reports were produced as part of the MFTF-B design effort. Significant aspects of the designs, as well as key analysis results, are summarized in this report. In addition, drawing trees and lists off detailed analysis and test reports included in this report define the locations of the detailed design and analysis data.

Heathman, J.H.; Wohlwend, J.W.

1985-05-01T23:59:59.000Z

359

TESTING AND ANALYSIS OF CAP CONCRETE STRESS AND STRAIN DUE TO SHRINKAGE, CREEP, AND EXPANSION FINAL REPORT  

SciTech Connect

In-situ decommissioning of Reactors P- and R- at the Savannah River Site will require filling the reactor vessels with a special concrete based on materials such as magnesium phosphate, calcium aluminate or silica fume. Then the reactor vessels will be overlain with an 8 ft. thick layer of Ordinary Portland Cement (OPC) steel reinforced concrete, called the 'Cap Concrete'. The integrity of this protective layer must be assured to last for a sufficiently long period of time to avoid ingress of water into the reactor vessel and possible movement of radioactive contamination into the environment. During drying of this Cap Concrete however, shrinkage strains are set up in the concrete as a result of diffusion and evaporation of water from the top surface. This shrinkage varies with depth in the poured slab due to a non-uniform moisture distribution. This differential shrinkage results in restraint of the upper layers with larger shrinkage by lower layers with lesser displacements. Tensile stresses can develop at the surface from the strain gradients in the bulk slab, which can lead to surface cracking. Further, a mechanism called creep occurs during the curing period or early age produces strains under the action of restraining forces. To investigate the potential for surface cracking, an experimental and analytical program was started under TTQAP SRNL-RP-2009-01184. Slab sections made of Cap Concrete mixture were instrumented with embedded strain gages and relative humidity sensors and tested under controlled environmental conditions of 23 C and relative humidities (RH) of 40% and 80% over a period of 50 days. Calculation methods were also developed for predictions of stress development in the full-scale concrete placement over the reactor vessels. These methods were evaluated by simulating conditions for the test specimens and the calculation results compared to the experimental data. A closely similar test with strain gages was performed by Kim and Lee for a concrete mixture that did not employ humidity sensors and the admixtures used in this program. Yuan and Wan tried to predict the shrinkage strains and stresses in the Kim and Lee experiment, but did not include a creep analysis. Grasley and Lange conducted full restraint load tests on a concrete prism instrumented with humidity sensors over a 7 day curing period. The hypothetical case of full-scale placement of the Cap Concrete was also analyzed using the developed analytical methods. The calculation performed in this report is for scoping purposes only.

Guerrero, H.; Restivo, M.

2011-08-01T23:59:59.000Z

360

Production and acceleration of tracer encapsulated solid pellets for particle transport diagnostics  

Science Journals Connector (OSTI)

A new method for producing a tracer-encapsulated solid pellet (TESPEL) has been developed for a local deposition of the tracer ions in the core plasma and an accurate measurement of the particle transport. The method allows manufacturing of TESPELs in the form of polystyrene shells containing lithium hydride inside as a tracer. The TESPEL acceleration has been successfully performed and photos of the pellets in flight confirmed the TESPEL integrity. For the pellets with diameter 300400 ? m and wall thickness 4050 ? m the pellet fragility becomes insignificant. Calculation of the TESPEL ablation rate has showed that the achieved pellet velocities and sizes are appropriate for the injection into a medium size plasma. It was proposed to fractionate the tracer contents in order to provide better localization of the deposited tracer ions in the plasma. The data obtained in these experiments have proved that injection of the TESPEL made from the plastic shells can be a promising tool for the particle transport diagnostics.

K. V. Khlopenkov; S. Sudo

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Advancing reactive tracer methods for measuring thermal evolution in CO2-and water-based geothermal reservoirs  

Energy.gov (U.S. Department of Energy (DOE))

DOE Geothermal Peer Review 2010 - Presentation. This project aims to develop reactive tracer method for monitoring thermal drawdown in enhanced geothermal systems.

362

Analysis of removal alternatives for the Heavy Water Components Test Reactor at the Savannah River Site. Revision 1  

SciTech Connect

This engineering study evaluates different alternatives for decontamination and decommissioning of the Heavy Water Components Test Reactor (HWCTR). Cooled and moderated with pressurized heavy water, this uranium-fueled nuclear reactor was designed to test fuel assemblies for heavy water power reactors. It was operated for this purpose from march of 1962 until December of 1964. Four alternatives studied in detail include: (1) dismantlement, in which all radioactive and hazardous contaminants would be removed, the containment dome dismantled and the property restored to a condition similar to its original preconstruction state; (2) partial dismantlement and interim safe storage, where radioactive equipment except for the reactor vessel and steam generators would be removed, along with hazardous materials, and the building sealed with remote monitoring equipment in place to permit limited inspections at five-year intervals; (3) conversion for beneficial reuse, in which most radioactive equipment and hazardous materials would be removed and the containment building converted to another use such as a storage facility for radioactive materials, and (4) entombment, which involves removing hazardous materials, filling the below-ground structure with concrete, removing the containment dome and pouring a concrete cap on the tomb. Also considered was safe storage, but this approach, which has, in effect, been followed for the past 30 years, did not warrant detailed evaluation. The four other alternatives were evaluate, taking into account factors such as potential effects on the environment, risks, effectiveness, ease of implementation and cost. The preferred alternative was determined to be dismantlement. This approach is recommended because it ranks highest in the comparative analysis, would serve as the best prototype for the site reactor decommissioning program and would be most compatible with site property reuse plans for the future.

Owen, M.B.

1997-04-01T23:59:59.000Z

363

Summary of micrographic analysis of fracture coating phases on drill cores from Pahute Mesa, Nevada Test Site. Revision 1  

SciTech Connect

The flow path between Pahute Mesa and the groundwater discharge area in Oasis Valley (approximately 18 miles to the southwest) is of concern due to the relatively short travel distance between a recharge area where underground nuclear testing has been conducted and the off-site water users. Groundwater flow and transport modeling by IT Corporation (IT) has shown rapid tritium transport in the volcanic rock aquifers along this flow path. The resultant estimates of rapid transport were based on water level data, limited hydraulic conductivity data, estimates of groundwater discharge rates in Oasis Valley, assumed porosities, and estimated retardation rates. Many of these parameters are poorly constrained and may vary considerably. Sampling and analytical techniques are being applied as an independent means to determine transport rates by providing an understanding of the geochemical processes that control solute movement along the flow path. As part of these geochemical investigations, this report summarizes the analysis of fracture coating mineral phases from drill core samples from the Pahute mesa area of the Nevada Test Site (NTS). Archived samples were collected based on the presence of natural fractures and on the types and abundance of secondary mineral phases present on those fracture surfaces. Mineral phases present along fracture surfaces are significant because, through the process of water-rock interaction, they can either contribute (as a result of dissolution) or remove (as a result of precipitation or adsorption) constituents from solution. Particular attention was paid to secondary calcite occurrences because they represent a potential source of exchangeable carbon and can interact with groundwater resulting in a modified isotopic signature and apparent water age.

NONE

1998-12-01T23:59:59.000Z

364

USE OF NATURALLY-OCCURRING TRACERS TO MONITOR TWO-PHASE CONDITIONS IN THE  

Open Energy Info (EERE)

NATURALLY-OCCURRING TRACERS TO MONITOR TWO-PHASE CONDITIONS IN THE NATURALLY-OCCURRING TRACERS TO MONITOR TWO-PHASE CONDITIONS IN THE COSO EGS PROJECT Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: USE OF NATURALLY-OCCURRING TRACERS TO MONITOR TWO-PHASE CONDITIONS IN THE COSO EGS PROJECT Details Activities (1) Areas (1) Regions (0) Abstract: A dramatic decrease in the ratio of chloride to boron was observed in the liquid discharge of a well proposed for EGS development in the Coso geothermal field. The decrease appears to be related to the transformation of some feed zones in the well from liquid-dominated to vapor-dominated. High concentrations of boron are transported to the wellbore in the steam, where it fractionates to the liquid phase flowing in from liquid-dominated feed zones. The high-boron steam is created when the

365

The Elemental Composition of High-Energy Cosmic Rays: Measurements with TRACER  

E-Print Network (OSTI)

TRACER ('Transition Radiation Array for Cosmic Energetic Radiation') is a balloon borne instrument that has been developed to directly measure the composition and energy spectra of individual heavy elements up to 10^15 eV per particle. TRACER achieves a large geometric factor (5 m^2 sr) through the use of a Transition Radiation Detector utilizing arrays of single wire proportional tubes. TRACER has measured the energy spectra of the elements O, Ne, Mg, Si, S, Ar, Ca, and Fe. The energy spectra reach energies in excess of 10^14 eV per particle and exhibit nearly the same spectral index (2.65 +/- 0.05) for all elements.

P. J. Boyle

2008-10-16T23:59:59.000Z

366

Tracer transport in the Greenland Ice Sheet: constraints on ice cores and glacial history  

Science Journals Connector (OSTI)

The climate history and dynamics of the Greenland Ice Sheet are studied using a coupled model of the depositional provenance and transport of glacier ice, allowing simultaneous prediction of the detailed isotopic stratigraphy of ice cores at all the major Greenland sites. Adopting a novel method for reconstructing the agedepth relationship, we greatly improve the accuracy of semi-Lagrangian tracer tracking schemes and can readily incorporate an age-dependent ice rheology. The larger aim of our study is to impose new constraints on the glacial history of the Greenland Ice Sheet. Leading sources of uncertainty in the climate and dynamic history are encapsulated in a small number of parameters: the temperature and elevation isotopic sensitivities, the glacialinterglacial precipitation contrast and the effective viscosity of ice in the flow law. Comparing predicted and observed ice layering at ice core sites, we establish plausible ranges for the key model parameters, identify climate and dynamic histories that are mutually consistent and recover the past depositional elevation of ice cores to ease interpretation of their climatic records. With the coupled three-dimensional model of ice dynamics and provenance transport we propose a method to place all the ice core records on a common time scale and use discrepancies to adjust the reconstructed climate history. Analysis of simulated GRIP ice layering and borehole temperature profiles confirms that the GRIP record is sensitive to the dynamic as well as to the climatic history, but not enough to strongly limit speculation on the state of the Greenland Ice Sheet during the Eemian. In contrast, our study indicates that the Dye 3 and Camp Century ice cores are extremely sensitive to ice dynamics and greatly constrain Eemian ice sheet reconstructions. We suggest that the maximum Eemian sea-level contribution of the ice sheet was in the range of 3.54.5m.

Nicolas Lhomme; Garry K.C. Clarke; Shawn J. Marshall

2005-01-01T23:59:59.000Z

367

Isotopic Tracers for Biogeochemical Processes and Contaminant Transport: Hanford, Washington  

SciTech Connect

Our goal is to use isotopic measurements to understand how contaminants are introduced to and stored in the vadose zone, and what processes control migration from the vadose zone to groundwater and then to surface water. We have been using the Hanford Site in south-central Washington as our field laboratory, and our investigations are often stimulated by observations made as part of the groundwater monitoring program and vadose zone characterization activities. Understanding the transport of contaminants at Hanford is difficult due to the presence of multiple potential sources within small areas, the long history of activities, the range of disposal methods, and the continuing evolution of the hydrological system. Observations often do not conform to simple models, and cannot be adequately understood with standard characterization approaches, even though the characterization activities are quite extensive. One of our objectives is to test the value of adding isotopic techniques to the characterization program, which has the immediate potential benefit of addressing specific remediation issues, but more importantly, it allows us to study fundamental processes at the scale and in the medium where they need to be understood. Here we focus on two recent studies at the waste management area (WMA) T-TX-TY, which relate to the sources and transport histories of vadose zone and groundwater contamination and contaminant fluid-sediment interaction. The WMA-T and WMA-TX-TY tank farms are located within the 200 West Area in the central portion of the Hanford Site (Fig. 2). They present a complicated picture of mixed groundwater plumes of nitrate, {sup 99}Tc, Cr{sup 6+}, carbon tetrachloride, etc. and multiple potential vadose zone sources such as tank leaks and disposal cribs (Fig. 3). To access potential vadose zone sources, we analyzed samples from cores C3832 near tank TX-104 and from C4104 near tank T-106. Tank T-106 was involved in a major event in 1973 in which 435,000 L of high activity waste leaked to the vadose zone over a seven-week period. Other nearby tanks (T-103 and T-101) are also suspected of having leaked or overfilled. Pore water from these cores was analyzed for U and Sr isotopic compositions. Increasing {sup 99}Tc concentration in monitoring well 299-W11-39 (to 27,000 pCi/L in 2005) near the northeast corner of the WMA-T area prompted the emplacement of a series of new wells, 299-W11-25B, W11-45 (down gradient), and W11-47 (Fig. 3), during which depth discrete samples were collected below the groundwater surface. The depth profile from W11-25B revealed high {sup 99}Tc concentrations peaking at 182,000 pCi/L at {approx}10 m below the water table (Dresel et al. 2006). We obtained aliquots for isotopic analysis of groundwater samples produced by purge-and-pump sampling during the drilling of W11-25B, -45 and -47. In addition we have analyzed groundwater samples from monitoring wells in the vicinity of WMA T-TX-TY.

Donald J. DePaolo; John N. Christensen; Mark E. Conrad; and P. Evan Dresel

2007-04-19T23:59:59.000Z

368

An Analysis of Performance of ESL Students on Various Social Studies Objectives and Test Items on the Texas Assessment of Knowledge and Skills (TAKS) Test  

E-Print Network (OSTI)

Excellence Indicator System ESL English as a Second Language LEP Limited English Proficiency NCLB No Child Left Behind SES Social Economic Status TAAS Texas Assessment of Academic Skills TAKS Texas Assessment of Knowledge and Skills TEA Texas Education.... ................................................................................................. 57 Table 7 Gender, Ethnicity, and SES of Participants in the ESL Program Completing the Social Studies TAKS Test in Total. ............................................................ 61 Table 8 Gender, Ethnicity, and ESL Status of 8th Grade...

Musa, Ahlam

2013-03-27T23:59:59.000Z

369

TESTING AND PERFORMANCE ANALYSIS OF NASA 5 CM BY 5 CM BI-SUPPORTED SOLID OXIDE ELECTROLYSIS CELLS OPERATED IN BOTH FUEL CELL AND STEAM ELECTROLYSIS MODES  

SciTech Connect

A series of 5 cm by 5 cm bi-supported Solid Oxide Electrolysis Cells (SOEC) were produced by NASA for the Idaho National Laboratory (INL) and tested under the INL High Temperature Steam Electrolysis program. The results from the experimental demonstration of cell operation for both hydrogen production and operation as fuel cells is presented. An overview of the cell technology, test apparatus and performance analysis is also provided. The INL High Temperature Steam Electrolysis laboratory has developed significant test infrastructure in support of single cell and stack performance analyses. An overview of the single cell test apparatus is presented. The test data presented in this paper is representative of a first batch of NASA's prototypic 5 cm by 5 cm SOEC single cells. Clearly a significant relationship between the operational current density and cell degradation rate is evident. While the performance of these cells was lower than anticipated, in-house testing at NASA Glenn has yielded significantly higher performance and lower degradation rates with subsequent production batches of cells. Current post-test microstructure analyses of the cells tested at INL will be published in a future paper. Modification to cell compositions and cell reduction techniques will be altered in the next series of cells to be delivered to INL with the aim to decrease the cell degradation rate while allowing for higher operational current densities to be sustained. Results from the testing of new batches of single cells will be presented in a future paper.

R. C. O'Brien; J. E. O'Brien; C. M. Stoots; X. Zhang; S. C. Farmer; T. L. Cable; J. A. Setlock

2011-11-01T23:59:59.000Z

370

Design and fabrication of a bending rotation fatigue test rig for in situ electrochemical analysis during fatigue testing of NiTi shape memory alloy wires  

Science Journals Connector (OSTI)

The current investigation proposes a novel method for simultaneous assessment of the electrochemical and structural fatigue properties of nickel-titanium shape memory alloy (NiTi SMA) wires. The design and layout of an in situ electrochemical cell in a custom-made bending rotation fatigue (BRF) test rig is presented. This newly designed test rig allows performing a wide spectrum of experiments for studying the influence of fatigue on corrosion and vice versa. This can be achieved by performing ex situ and/or in situ measurements. The versatility of the combined electrochemical/mechanical test rig is demonstrated by studying the electrochemical behavior of NiTi SMA wires in 0.9% NaCl electrolyte under load. The ex situ measurements allow addressing various issues for example the influence of pre-fatigue on the localized corrosion resistance or the influence of hydrogen on fatigue life. Ex situ experiments showed that a pre-fatigued wire is more susceptible to localized corrosion. The synergetic effect can be concluded from the polarization studies and specifically from an in situ study of the open circuit potential (OCP) transients which sensitively react to the elementary repassivation events related to the local failure of the oxide layer. It can also be used as an indicator for identifying the onset of the fatigue failure.

Jenni Kristin Zglinski; Matthias Frotscher

2013-01-01T23:59:59.000Z

371

Design and fabrication of a bending rotation fatigue test rig for in situ electrochemical analysis during fatigue testing of NiTi shape memory alloy wires  

SciTech Connect

The current investigation proposes a novel method for simultaneous assessment of the electrochemical and structural fatigue properties of nickel-titanium shape memory alloy (NiTi SMA) wires. The design and layout of an in situ electrochemical cell in a custom-made bending rotation fatigue (BRF) test rig is presented. This newly designed test rig allows performing a wide spectrum of experiments for studying the influence of fatigue on corrosion and vice versa. This can be achieved by performing ex situ and/or in situ measurements. The versatility of the combined electrochemical/mechanical test rig is demonstrated by studying the electrochemical behavior of NiTi SMA wires in 0.9% NaCl electrolyte under load. The ex situ measurements allow addressing various issues, for example, the influence of pre-fatigue on the localized corrosion resistance, or the influence of hydrogen on fatigue life. Ex situ experiments showed that a pre-fatigued wire is more susceptible to localized corrosion. The synergetic effect can be concluded from the polarization studies and specifically from an in situ study of the open circuit potential (OCP) transients, which sensitively react to the elementary repassivation events related to the local failure of the oxide layer. It can also be used as an indicator for identifying the onset of the fatigue failure.

Neelakantan, Lakshman [Ruhr-Universitaet Bochum, Institute for Materials, 44801 Bochum (Germany); Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, 600 036 Chennai (India); Zglinski, Jenni Kristin; Eggeler, Gunther [Ruhr-Universitaet Bochum, Institute for Materials, 44801 Bochum (Germany); Frotscher, Matthias [Ruhr-Universitaet Bochum, Institute for Materials, 44801 Bochum (Germany); CORTRONIK GmbH, 18119 Rostock-Warnemuende (Germany)

2013-03-15T23:59:59.000Z

372

Analysis of historical seismogramsroot mean square Lg magnitudes, yields and depths of explosions at the Semipalatinsk Test Range  

Science Journals Connector (OSTI)

......Geology of NRDC Seismic Station Sites in Eastern Kazakhstan, USSR US...1986b. Yield estimates of Nevada test site explosions obtained from seismic...I9Xhb. Yield estimates o l Nevada test site explosions obtained from seismic......

Hans Israelsson

1994-06-01T23:59:59.000Z

373

Tritium production analysis and management strategies for a Fluoride-salt-cooled high-temperature test reactor (FHTR)  

E-Print Network (OSTI)

The Fluoride-salt-cooled High-temperature Test Reactor (FHTR) is a test reactor concept that aims to demonstrate the neutronics, thermal-hydraulics, materials, tritium management, and to address other reactor operational ...

Rodriguez, Judy N

2013-01-01T23:59:59.000Z

374

Junior QA Engineer Intern -14895BR -EH QA Engineers are responsible for facilitating the analysis, evaluation, and testing of firmware across multiple platforms.  

E-Print Network (OSTI)

Junior QA Engineer Intern - 14895BR - EH QA Engineers are responsible for facilitating the analysis, evaluation, and testing of firmware across multiple platforms. · Develop, implement, review ­ C, Java, or other object-oriented programming language acceptable. · Networking experience (L2/L3

Ravikumar, B.

375

INFORMAL REPORT MULTI-TRACER CONTROL ROOM AIR INLEAKAGE PROTOCOL  

E-Print Network (OSTI)

For discussion with the Nuclear Power Plant Industry January 2002 Research by BNL investigators was performed and tested to handle the unusually large flowrates in a number of HVAC zones in power stations. A review of the plans of a particular nuclear power plant and subsequent simulations of the tagging and sampling results

376

In-situ model analysis of STARS missile flight data and comparison to per-flight predictions from test-reconciled models  

SciTech Connect

The Natural Excitation Technique (NExT) was used to analyze STARS launch data during first and second stage flight using telemetered acceleration data. A continuous track of modal frequencies and modal damping was acquired for the first and second elastic modes of the system during first stage flight and for the first mode during second stage flight. Generally, the first mode was predicted to be lower than seen in actual flight. The second mode predictions were very close to those seen in flight. Damping values were found to be within the range estimated by ground testing or slightly less. The results from this modal analysis of launch data allowed a final quantification of the inherent bias errors which resulted from the STARS ground-based modal tests as well as pointing out structures which were in need of further test/analysis correlation.

James, G.H.; Carne, T.G.; Marek, E.L.

1994-08-01T23:59:59.000Z

377

Biological testing and chemical analysis of process materials from an integrated two stage coal liquefaction: a status report  

SciTech Connect

Samples for chemical characterization and biological testing were obtained from ITSL runs 3LCF7, 3LCF8 and 3LCF9. Chemical analysis of these materials showed that SCT products were composed of fewer compounds than analogous materials from Solvent Refined Coal (SRC) processes. Major components in the SCT materials were three-, four-, five- and six-ring neutral polycyclic aromatic hydrocarbons (PAH). Methyl(C/sub 1/) and C/sub 2/ homologs of these compounds were present in relatively low concentrations, compared to their non-alkylated homologs. Organic nitrogen was primarily in the form of tertiary polycyclic aromatic nitrogen heterocycles and carbazoles. Little or no amino PAH (APAH) or cyano PAH were detected in samples taken during normal PDU operations, however, mutagenic APAH were produced during off-normal operation. Microbial mutagenicity appeared to be due mainly to the presence of APAH which were probably formed in the LC finer due to failure of the catalyst to promote deamination following carbon-nitrogen bond scission of nitrogen-containing hydroaromatics. This failure was observed for the off-normal runs where it was likely that the catalyst had been deactivated. Carcinogenic activity of ITSL materials as assessed by (tumors per animal) in the initiation/promotion mouse skin painting assay was slightly reduced for materials produced with good catalyst under normal operation compared to those collected during recycle of the LC Finer feed. Initiation activity of the latter samples did not appear to be significantly different from that of other coal derived materials with comparable boiling ranges. The observed initiation activity was not unexpected, considering analytical data which showed the presence of four-, five- and six-ring PAH in ITSL materials.

Wilson, B.W.; Buhl, P.; Moroni, E.C.

1983-07-01T23:59:59.000Z

378

Using Thermally-Degrading, Partitioning, and Nonreactive Tracers to Determine Temperature Distribution and Fracture/Heat Transfer Surface Area in Geothermal Reservoirs  

Energy.gov (U.S. Department of Energy (DOE))

DOE Geothermal Peer Review 2010 - Project Summary. The goal of this project is to provide integrated tracer and tracer interpretation tools to facilitate quantitative characterization of temperature distributions and surface area available for heat transfer in EGS.

379

ADVANCES IN ATMOSPHERIC SCIENCES, VOL. 25, NO. 5, 2008, 805814 Diagnosing Ocean Tracer Transport from Sellafield  

E-Print Network (OSTI)

DRANGE1,2,3,4 , and Eric DELEERSNIJDER5 1 Nansen Environmental and Remote Sensing Center, Bergen, Norway applications thereof, idealized releases of passive tracers from the nuclear fuel reprocessing plants­814, doi: 10.1007/s00376-008-0805-y. 1. Introduction Estimating the integrated effect of processes acting

Drange, Helge

380

Project EARTH-14-SHELLDP1: Developing Metal Isotope Tracers for Understanding Sediment Depositional Environments  

E-Print Network (OSTI)

Project EARTH-14-SHELLDP1: Developing Metal Isotope Tracers for Understanding Sediment Depositional and the mechanisms behind temporal and spatial variations in organic matter quantity and quality. The project work will involve becoming proficient in clean room procedures, chemical separation techniques

Henderson, Gideon

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Lignin biomarkers as tracers of mercury sources in lakes water column  

E-Print Network (OSTI)

Lignin biomarkers as tracers of mercury sources in lakes water column Jean-Franc¸ois Ouellet ? Marc the autochthonous from the allochthonous organic matter (OM), lignin derived biomarker signa- tures [Lambda, S/V, C/V, P/(V ? S), 3,5-Bd/V and (Ad/Al)v] were used. Since lignin is exclusively produced by terrigenous

Long, Bernard

382

USING LIDAR TO MEASURE PERFLUOROCARBON TRACERS FOR THE VERIFICATION AND MONITORING  

E-Print Network (OSTI)

USING LIDAR TO MEASURE PERFLUOROCARBON TRACERS FOR THE VERIFICATION AND MONITORING OF CAP AND COVER to detect PMCH (perfluoromethylcyclohexane, one of a group of PFTs used at BNL). Laboratory measurements then measured down to 1 ppb-m. These results are very promising and show great potential for monitoring

383

New Tracers Identify Hydraulic Fracturing Fluids and Accidental Releases from Oil and Gas Operations  

E-Print Network (OSTI)

New Tracers Identify Hydraulic Fracturing Fluids and Accidental Releases from Oil and Gas fingerprints of fluids that return to the surface after high volume hydraulic fracturing of unconventional oil the hydraulic fracturing process, resulting in the relative enrichment of boron and lithium in HFFF

Jackson, Robert B.

384

Physical causes and modeling challenges of anomalous diffusion of sediment tracers  

E-Print Network (OSTI)

Physical causes and modeling challenges of anomalous diffusion of sediment tracers Douglas Jerolmack Earth & Environmental Science, UPenn [sediment@sas.upenn.edu] "Bridging the Gap", Princeton U., 2" describable by: 1. Particle volume, v [L3 ]. 2.Average velocity, us , of bed load sediment [L/T]. 3. Surface

385

Ca and 87/86 Sr isotopes as tracers of silicate weathering in small  

E-Print Network (OSTI)

44/40 Ca and 87/86 Sr isotopes as tracers of silicate weathering in small catchments of the Massif, Laboratory Division, Orléans, France 2 U.S. Geological Survey, Water Resources Division, Menlo Park, CA 94025).Measurements of 44/40 Ca isotope ratios (44/40 Ca measured by the double spike method on TIMS and normalized

Paris-Sud XI, Université de

386

Evaluating the ability of a numerical weather prediction model to forecast tracer concentrations during ETEX 2  

E-Print Network (OSTI)

Evaluating the ability of a numerical weather prediction model to forecast tracer concentrations an operational numerical weather prediction model to forecast air quality are also investigated. These potential a numerical weather prediction (NWP) model independently of the CTM. The NWP output is typically archived

Dacre, Helen

387

An Improved Gas Chromatographic Method for the Determination of Perfluorocarbon Tracers in the Atmosphere  

Science Journals Connector (OSTI)

......U.S. Department of Energy, New York, New York...U.S. Department of Energy, New York, New York...quantity, hence the cost, of the tracer required...experiments in the geysers geothermal area. RH. Gudiksen...U. S. Department of Energy, New York, NY(1991......

Raymond J. Lagomarsino

1996-09-01T23:59:59.000Z

388

Seasonal Variation in Monthly Average Air Change Rates Using Passive Tracer Gas Measurements  

E-Print Network (OSTI)

of indoor air pollution sources. Concurrently, great efforts are made to make buildings energy efficient 1970s, while less attention has been paid to IAQ. Insufficient venting of indoor air pollutantsSeasonal Variation in Monthly Average Air Change Rates Using Passive Tracer Gas Measurements Marie

Hansen, René Rydhof

389

Supporting BioMedical Information Retrieval: The BioTracer Approach  

E-Print Network (OSTI)

Supporting BioMedical Information Retrieval: The BioTracer Approach Heri Ramampiaro1 and Chen Li2 1 biomedical in- formation has put a high demand on existing search systems. Such a tool should be able the relevant ones the highest rank- ing. Focusing on biomedical information, this work investigates how

Li, Chen

390

ORIGINAL PAPER Evaluating sedimentary geochemical lake-level tracers  

E-Print Network (OSTI)

Walker Lake has been generated through analysis of total inorganic car- bon (TIC), total organic carbon (TOC), and oxy- gen and carbon isotope ratios (d18 O and d13 C) of both downcore bulk TIC and ostracods in %TIC, %TOC, and d13 C and d18 O of TIC and ostracods are all associated to varying degrees with changes

Linsley, Braddock K.

391

Addendum 1 Composite Analysis for the Area 5 Radioactive Waste Management Site at the Nevada Test Site, Nye County, Nevada  

SciTech Connect

A disposal authorization statement (DAS) was issued by the U.S. Department of Energy/Headquarters (DOE/HQ) on December 5, 2000, authorizing the DOE's National Nuclear Security Administration Nevada Operations Office to continue the operation of the Area 5 Radioactive Waste Management Site (RWMS) at the Nevada Test Site for the disposal of low-level waste and mixed low-level waste. Prior to the issuance of the DAS, the Low-Level Waste Disposal Facility Federal Review Group (LFRG) had conducted reviews of the performance assessment (PA) and the composite analysis (CA) for the Area 5 RWMS, in accordance with the requirements of the DOE Radioactive Waste Management Order DOE O 435.1. A brief history of the reviews is as follows. (The reviews were conducted by independent review teams chartered by the LFRG; the review findings and recommendations were issued in review team reports to the LFRG.) The LFRG accepted the initial PA, with conditions, on August 30, 1996. Revision 2.1 to the PA was issued in January 1998, implementing the conditions of acceptance of the 1996 PA. The LFRG reviewed Revision 2.1 as part of the Area 5 RWMS CA review during 2000, and found it acceptable. The CA and the Supplemental Information provided in response to issues identified during the initial review of the CA were accepted by the LFRG. The Supplemental Information (including the responses to four key issues) is included in the Review Team Report to the LFRG, which recommends that it be incorporated into the CA and issued to all known holders of the CA. The Area 5 RWMS DAS requires that the Supplemental Information generated during the DOE/HQ review of the CA be incorporated into the CA within one year of the date of issuance of the DAS. This report, the first addendum to the Area 5 CA, is prepared to fulfill that requirement. The Supplemental Information includes the following: Issues Identified in the Review Team Report; Crosswalk Presentation; and Maintaining Doses As Low As Reasonably Achievable. A summary of this information is included in this report, with the complete text presented in the appendices.

Vefa Yucel

2001-11-01T23:59:59.000Z

392

An Analysis Tool for Coupling-based Integration Testing A. Jefferson Offutt, Aynur Abdurazik and Roger T. Alexander  

E-Print Network (OSTI)

of the most common methods for assuring quality of complex computer software systems. To be confident in the program and providing greater assurance that the software is of high quality and reliability. This paper be satisfied or covered during testing. A testing criterion is a rule or col- lection of rules that impose

Alexander, Roger T.

393

An Analysis Tool for Couplingbased Integration Testing \\Lambda A. Jefferson Offutt, Aynur Abdurazik and Roger T. Alexander  

E-Print Network (OSTI)

of the most common methods for assuring quality of complex computer software systems. To be confident in the program and providing greater assurance that the software is of high quality and reliability. This paper be satisfied or covered during testing. A testing criterion is a rule or col­ lection of rules that impose

Offutt, Jeff

394

Overview of SIMS-Based Experimental Studies of Tracer Diffusion in Solids and Application to Mg Self-Diffusion  

SciTech Connect

Tracer diffusivities provide the most fundamental information on diffusion in materials and are the foundation of robust diffusion databases. Compared to traditional radiotracer techniques that utilize radioactive isotopes, the secondary ion mass spectrometry (SIMS) based thin-film technique for tracer diffusion is based on the use of enriched stable isotopes that can be accurately profiled using SIMS. Experimental procedures & techniques that are utilized for the measurement of tracer diffusion coefficients are presented for pure magnesium, which presents some unique challenges due to the ease of oxidation. The development of a modified Shewmon-Rhines diffusion capsule for annealing Mg and an ultra-high vacuum (UHV) system for sputter deposition of Mg isotopes are discussed. Optimized conditions for accurate SIMS depth profiling in polycrystalline Mg are provided. An automated procedure for the correction of heat-up and cool-down times during tracer diffusion annealing is discussed. The non-linear fitting of a SIMS depth profile data using the thin film Gaussian solution to obtain the tracer diffusivity along with the background tracer concentration and tracer film thickness is discussed. An Arrhenius fit of the Mg self-diffusion data obtained using the low-temperature SIMS measurements from this study and the high-temperature radiotracer measurements of Shewmon and Rhines (1954) was found to be a good representation of both types of diffusion data that cover a broad range of temperatures between 250 - 627 C (523 900 K).

Kulkarni, Nagraj S [ORNL; Warmack, Robert J Bruce [ORNL; Radhakrishnan, Balasubramaniam [ORNL; HunterJr., Jerry [Virginia Polytechnic Institute and State University; Sohn, Yong Ho [University of Central Florida; Coffey, Kevin [University of Central Florida; Murch, Prof. Graeme [University of Newcastle, NSW, Australia; Belova, Irina [University of Newcastle, NSW, Australia

2014-01-01T23:59:59.000Z

395

Experiences with aquifer testing and analysis in fractured low-permeability sedimentary rocks exhibiting nonradial pumping response  

SciTech Connect

Multiple-well aquifer pumping tests have been used successfully to measure the bulk hydraulic properties of limestone and shale formations of the Conasauga Group of East Tennessee and to define directional components in transmissivity associated with joints and small-scale folds. This experience demonstrates that multiple-well pumping tests can be used to measure the characteristics of low-permeability fractured rocks, and it illustrates the application of data interpretation techniques that are based on models of nonradial aquifer pumping response. Analytical models that have been used to interpret pumping test data include models for simple anisotropic response and for complex pumping response in an anisotropic aquifer intersected by a single high-conductivity vertical fracture. Comparisons of results obtained using nonradial flow methods with those obtained using traditional (radial flow) analytical methods indicate that the error from radial flow methods is generally less than an order of magnitude, an insignificant error in most low-permeability settings. However, the nonradial flow methods provide much more information on structural controls on groundwater movement. Special challenges encountered in conducting aquifer pumping tests in this hydrogeologic environment include selecting a pumping rate that can be sustained after fracture storage is depleted and laying out a test configuration that is consistent with the test geometry required by the nonradial flow interpretive models. Effective test design and data interpretation thus require extensive insight into site geology.

Smith, E.D.; Vaughan, N.D.

1985-01-01T23:59:59.000Z

396

Analysis of the Variability of Classsified and Unclassified Radiological Source term Inventories in the Frenchman Flat Area, Nevada test Site  

SciTech Connect

It has been proposed that unclassified source terms used in the reactive transport modeling investigations at NTS CAUs should be based on yield-weighted source terms calculated using the average source term from Bowen et al. (2001) and the unclassified announced yields reported in DOE/NV-209. This unclassified inventory is likely to be used in unclassified contaminant boundary calculations and is, thus, relevant to compare to the classified inventory. They have examined the classified radionuclide inventory produced by 10 underground nuclear tests conducted in the Frenchman Flat (FF) area of the Nevada Test Site. The goals were to (1) evaluate the variability in classified radiological source terms among the 10 tests and (2) compare that variability and inventory uncertainties to an average unclassified inventory (e.g. Bowen 2001). To evaluate source term variability among the 10 tests, radiological inventories were compared on two relative scales: geometric mean and yield-weighted geometric mean. Furthermore, radiological inventories were either decay corrected to a common date (9/23/1992) or the time zero (t{sub 0}) of each test. Thus, a total of four data sets were produced. The date of 9/23/1992 was chosen based on the date of the last underground nuclear test at the Nevada Test Site.

Zhao, P; Zavarin, M

2008-06-04T23:59:59.000Z

397

Vehicle Technologies Office Merit Review 2014: Post-Test Analysis of Lithium-Ion Battery Materials at Argonne National Laboratory  

Energy.gov (U.S. Department of Energy (DOE))

Presentation given by Argonne National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about post-test...

398

A Multi-Trait Multi-Method Analysis of the Bayesian Screening Instrument and Test Battery for LD Adolescents  

E-Print Network (OSTI)

Component Disability Instrument was investigated. The reliability and validity of the Modified Component Disability Checklist and Secondary Test battery were investigated in the third study (Research Report No. 11)....

Alley, Gordon R.; Deshler, Donald D.; Mellard, Daryl F.; Warner, Michael M.

1980-01-01T23:59:59.000Z

399

Uptake, Translocation, and Elimination in Sediment-Rooted Macrophytes: A Model-Supported Analysis of Whole Sediment Test Data  

Science Journals Connector (OSTI)

Understanding bioaccumulation in sediment-rooted macrophytes is crucial for the development of sediment toxicity tests using macrophytes. Here, we explore bioaccumulation in sediment-rooted macrophytes by tracking and modeling chemical flows of ...

Nol J. Diepens; Gertie H. P. Arts; Andreas Focks; Albert A. Koelmans

2014-09-24T23:59:59.000Z

400

Laboratory tests, statistical analysis and correlations for regained permeability and breakthrough time in unconsolidated sands for improved drill-in fluid cleanup practices  

E-Print Network (OSTI)

LABORATORY TESTS) STATISTICAL ANALYSIS AND CORRELATIONS FOR REGAINED PERMEABILITY AND BREAKTHROUGH TIME IN UNCONSOLIDATED SANDS FOR IMPROVED DRILL-IN FLUID CLEANUP PRACTICES A Thesis GERARDO ENRIQUE SERRANO Submitted to the Office of Graduate... AND BREAKTHROUGH TIME IN UNCONSOLIDATED SANDS FOR IMPROVED DRILL-IN FLUID CLEANUP PRACTICES A Thesis by GERARDO ENRIQUE SERRANO Submitted to Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved...

Serrano, Gerardo Enrique

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Subcontracted R and D final report: analysis of samples obtained from GKT gasification test of Kentucky coal. Nonproprietary version  

SciTech Connect

A laboratory test program was performed to obtain detailed compositional data on the Gesellshaft fuer Kohle-Technologie (GKT) gasifier feed and effluent streams. GKT performed pilot gasification tests with Kentucky No. 9 coal and collected various samples which were analyzed by GKT and the Radian Corporation, Austin, Texas. The coal chosen had good liquefaction characteristics and a high gasification reactivity. No organic priority pollutants or PAH compounds were detected in the wash water, and solid waste leachates were within RCRA metals limits.

Raman, S.V.

1983-09-01T23:59:59.000Z

402

A semi-analytical model for heat and mass transfer in geothermal reservoirs to estimate fracture surface-are-to-volume ratios and thermal breakthrough using thermally-decaying and diffusing tracers  

SciTech Connect

A semi-analytical model was developed to conduct rapid scoping calculations of responses of thermally degrading and diffusing tracers in multi-well tracer tests in enhanced geothermal systems (EGS). The model is based on an existing Laplace transform inversion model for solute transport in dual-porosity media. The heat- and mass-transfer calculations are decoupled and conducted sequentially, taking advantage of the fact that heat transfer between fractures and the rock matrix is much more rapid than mass transfer and therefore mass transfer will effectively occur in a locally isothermal system (although the system will be nonisothermal along fracture flow pathways, which is accounted for by discretizing the flow pathways into multiple segments that have different temperature histories). The model takes advantage of the analogies between heat and mass transfer, solving the same governing equations with k{sub m}/({rho}C{sub p}){sub w} being substituted for {phi}D{sub m} in the equation for fracture transport and k{sub m}/({rho}C{sub p}){sub m} being subsituted for D{sub m} in the equation for matrix transport; where k = thermal conductivity (cal/cm-s-K), {rho} = density (g/cm{sup 3}), C{sub p} = heat capacity (at constant pressure) (cal/g-K), {phi} = matrix porosity, and D = tracer diffusion coefficient (cm{sup 2}/s), with the subscripts w and m referring to water and matrix, respectively. A significant advantage of the model is that it executes in a fraction of second on a single-CPU personal computer, making it very amenable for parameter estimation algorithms that involve repeated runs to find global minima. The combined thermal-mass transport model was used to evaluate the ability to estimate when thermal breakthrough would occur in a multi-well EGS configuration using thermally degrading tracers. Calculations were conducted to evaluate the range of values of Arrhenius parameters, A and E{sub {alpha}} (pre-exponential factor, 1/s, and activation energy, cal/mol) required to obtain interpretable responses of thermally-degrading tracers that decay according to the rate constant k{sub d} = Ae{sup -E{sub {alpha}}/RT}, where k{sub d} = decay rate constant (1/s), R = ideal gas constant (1.987 cal/mol-K), and T = absolute temperature (K). It is shown that there are relatively narrow ranges of A and E{sub {alpha}} that will result in readily interpretable tracer responses for any given combination of ambient reservoir temperature and working fluid residence time in a reservoir. The combined model was also used to simulate the responses of conservative tracers with different diffusion coefficients as a way of estimating fracture surface-area-to-volume ratios (SA/V) in multi-well EGS systems. This method takes advantage of the fact that the differences in breakthrough curves of tracers with different matrix diffusion coefficients are a function of SA/V. The model accounts for differences in diffusion coefficients as a function of temperature so that tracer responses obtained at different times can be used to obtain consistent estimates of SA/V as the reservoir cools down. Some single-well applications of this approach are simulated with a numerical model to demonstrate the potential to evaluate the effectiveness of EGS stimulations before a second well is drilled.

Reimus, Paul W [Los Alamos National Laboratory

2010-12-08T23:59:59.000Z

403

TRACER DETECTION TECHNOLOGY CORP. PRODUCTS AND SERVICES FOR CORPORATE AND GOVERNMENT SECURITY  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

TRACER DETECTION TECHNOLOGY CORP. TRACER DETECTION TECHNOLOGY CORP. PRODUCTS AND SERVICES FOR CORPORATE AND GOVERNMENT SECURITY 3463 MAGIC DRIVE, SUITE T-19 SAN ANTONIO, TX 78229 March 29, 2009 Office of the Assistant General Counsel for Technology Transfer and Intellectual Property U.S. Department of Energy 1000 Independence Ave., SW. Washington, DC 20585. GC-62@hq.doe.gov ATTN: TECHNOLOGY TRANSFER QUESTIONS. Response to Request for Information - Federal Register "The Costs and Benefits of Dealing with Federal Laboratories" This "white paper" is intended to deal constructively with issues relating to technology transfer and interaction of small businesses with federal laboratories, and should be considered a response to #6 (other). As a small businessman and entrepreneur engaged in the

404

TRACER DETECTION TECHNOLOGY CORP. PRODUCTS AND SERVICES FOR CORPORATE AND GOVERNMENT SECURITY  

NLE Websites -- All DOE Office Websites (Extended Search)

TRACER DETECTION TECHNOLOGY CORP. TRACER DETECTION TECHNOLOGY CORP. PRODUCTS AND SERVICES FOR CORPORATE AND GOVERNMENT SECURITY 3463 MAGIC DRIVE, SUITE T-19 SAN ANTONIO, TX 78229 March 29, 2009 Office of the Assistant General Counsel for Technology Transfer and Intellectual Property U.S. Department of Energy 1000 Independence Ave., SW. Washington, DC 20585. GC-62@hq.doe.gov ATTN: TECHNOLOGY TRANSFER QUESTIONS. Response to Request for Information - Federal Register "The Costs and Benefits of Dealing with Federal Laboratories" This "white paper" is intended to deal constructively with issues relating to technology transfer and interaction of small businesses with federal laboratories, and should be considered a response to #6 (other). As a small businessman and entrepreneur engaged in the

405

Evaluation of Tracers for Use in the International Field Experiment on CO2 Ocean Sequestration  

NLE Websites -- All DOE Office Websites (Extended Search)

Tracers for Use in the International Field Experiment Tracers for Use in the International Field Experiment on CO 2 Ocean Sequestration E. Eric Adams (eeadams@mit.edu; 617-253-6595) Dept. of Civil and Environmental Engineering Massachusetts Institute of Technology Cambridge, MA 02139 USA Introduction An international field experiment is scheduled to take place off of the west coast of the big island of Hawaii during the second half of 2001 (Adams, et al., 1999; Herzog, et al., 2000). Scientists representing some dozen institutions in five countries on four continents are expected to participate. The experiment will involve several sub-experiments in which CO 2 will be released at a depth of 800 m as a buoyant liquid at rates of 0.1 to 1.0 kg/s. The releases will each be made for a duration of about one hour using nozzles with differing diameters and numbers of ports.

406

Method and apparatus for container leakage testing  

DOE Patents (OSTI)

An apparatus for use in one-hundred percent leak testing of food containers used in conjunction with a tracer gas. The apparatus includes a shell with entrance and exit air locks to create a controlled atmosphere through which a series of containers is conveyed by a conveyor belt. The pressure in the shell is kept lower than the pressure in the containers and the atmosphere is made to flow with the containers so that a tracer gas placed in the packages before sealing them will leak more readily, but the leaked tracer gas will remain associated with the leaking package as it moves through the shell. The leaks are detected with a sniffer probe in fluid communication with a gas chromatograph. The gas chromatograph issues a signal when it detects a leak to an ejector that will eject the leaking container from the conveyor. The system is timed so that the series of containers can move continuously into and out of the shell, past the probe and the ejector, without stopping, yet each package is tested for leaks and removed if leaking.

Kronberg, James W. (Aiken, SC)

1995-01-01T23:59:59.000Z

407

Failure analysis of pinch-torsion tests as a thermal runaway risk evaluation method of Li-Ion Cells  

SciTech Connect

Recently a pinch-torsion test is developed for safety testing of Li-ion batteries (Ren et al., J. Power Source, 2013). It has been demonstrated that this test can generate small internal short-circuit spots in the separator in a controllable and repeatable manner. In the current research, the failure mechanism is examined by numerical simulations and comparisons to experimental observations. Finite element models are developed to evaluate the deformation of the separators under both pure pinch and pinch-torsion loading conditions. It is discovered that the addition of the torsion component significantly increased the maximum principal strain, which is believed to induce the internal short circuit. In addition, the applied load in the pinch-torsion test is significantly less than in the pure pinch test, thus dramatically improving the applicability of this method to ultra-thick batteries which otherwise require heavy load in excess of machine capability. It is further found that the separator failure is achieved in the early stage of torsion (within a few degree of rotation). Effect of coefficient of friction on the maximum principal strain is also examined.

Xia, Yuzhi [University of Tennessee, Knoxville (UTK); Li, Dr. Tianlei [Florida State University, Tallahassee; Ren, Prof. Fei [Temple University; Gao, Yanfei [ORNL; Wang, Hsin [ORNL

2014-01-01T23:59:59.000Z

408

Integrated Approach to Use Natural Chemical and Isotopic Tracers to Estimate Fracture Spacing and Surface Area in EGS Systems  

Energy.gov (U.S. Department of Energy (DOE))

DOE Geothermal Peer Review 2010 - Presentation. This objective of this project is to develop an innovative approach to estimate fracture surface area and spacing through interpretation of signals of natural chemical and isotopic tracers.

409

Field studies of streamflow generation using natural and injected tracers on Bickford and Walker Branch Watersheds  

SciTech Connect

Field studies of streamflow generation were undertaken on two forested watersheds, the West Road subcatchment of Bickford Watershed in central Massachusetts and the West Fork of Walker Branch Watershed in eastern Tennessee. A major component of the research was development of a two-stage methodology for the use of naturally-occurring {sup 222}Rn as a tracer. The first of the two stages was solving a mass-balance equation for {sup 222}Rn around a stream reach of interest in order to calculate Rn{sub q}, the {sup 222}Rn content of the lateral inflow to the reach; a conservative tracer (chloride) and a volatile tracer (propane) were injected into the study stream to account for lateral inflow to, and volatilization from, the study reach. The second stage involved quantitative comparison of Rn{sub q} to the measured {sup 222}Rn concentrations of different subsurface waters in order to assess how important these waters were in contributing lateral inflow to the stream reach.

Genereux, D.; Hemond, H. (Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Civil Engineering); Mulholland, P. (Oak Ridge National Lab., TN (United States))

1992-05-01T23:59:59.000Z

410

High-resolution stratospheric tracer fields estimated from satellite observations using Lagrangian trajectory calculations  

SciTech Connect

A technique is introduced by which high-resolution tracer fields may be constructed from low-resolution satellite observations. The technique relies upon the continual cascade of tracer variance from large to small scales and makes use of wind fields generated by a data assimilation scheme. To demonstrate its usefulness, the technique has been applied in a study of isentropic distributions of nitrous oxide in the winter midstratosphere, using measurements made by the Improved Stratospheric and Mesospheric Sounder (ISAMS) instrument on the Upper Atmosphere Research Satellite (UARS). The results show that the high-resolution fields significantly increase the amount of information that is available from the satellite observations. The fields give insights into the characteristic structure and evolution of tracer distributions at scales that are normally obscured from view. Two results are particularly noteworthy. First, at the interface between low and middle latitudes there is evidence of active mixing. This mixing occurs on the eastern, equatorward side of air that is being drawn toward high latitudes around the polar vortex. Second, in the anticyclone, a complex pattern of transport is revealed. Air drawn in from low latitudes spirals together with ambient midlatitude air. Small scales are generated relatively slowly in the organized flow, and persistent filamentary structures, with transverse scales of hundreds of kilometers or greater, are seen.

Sutton, R.T.; Maclean, H.; Swinbank, R.; O`Neill, A.; Taylor, F.W. [Oxford Univ., Oxford (United Kingdom)] [Oxford Univ., Oxford (United Kingdom); [Meteorological Office, Bracknell, Berkshire (United Kingdom); [Univ. of Reading, Reading (United Kingdom)

1994-10-01T23:59:59.000Z

411

Standard test method for analysis of isotopic composition of uranium in nuclear-grade fuel material by quadrupole inductively coupled plasma-mass spectrometry  

E-Print Network (OSTI)

1.1 This test method is applicable to the determination of the isotopic composition of uranium (U) in nuclear-grade fuel material. The following isotopic weight percentages are determined using a quadrupole inductively coupled plasma-mass spectrometer (Q-ICP-MS): 233U, 234U, 235U, 236U, and 238U. The analysis can be performed on various material matrices after acid dissolution and sample dilution into water or dilute nitric (HNO3) acid. These materials include: fuel product, uranium oxide, uranium oxide alloys, uranyl nitrate (UNH) crystals, and solutions. The sample preparation discussed in this test method focuses on fuel product material but may be used for uranium oxide or a uranium oxide alloy. Other preparation techniques may be used and some references are given. Purification of the uranium by anion-exchange extraction is not required for this test method, as it is required by other test methods such as radiochemistry and thermal ionization mass spectroscopy (TIMS). This test method is also described i...

American Society for Testing and Materials. Philadelphia

2000-01-01T23:59:59.000Z

412

Cost analysis of revisions to 10 CFR Part 50, Appendix J, leak tests for primary and secondary containments of light-water-cooled nuclear power plants  

SciTech Connect

The report examines the differences between the existing and proposed Appendix J and identifies eleven substantive areas where quantifiable impacts will likely result. The analysis indicated that there are four areas of change which tend to dominate all others in terms of cost impacts. The applicable paragraph numbers from Draft E2 of the Appendix J revision and the nature of the change follows: III.A(4) and III.A(6) - Test Pressure and Testing at Reduced Pressure No Longer Allowed; III.A(7)(b)(i) Acceptance Criteria 1.0 L/sub a/ Acceptable ''As Found'' Leakage; III.A(8)(2) Retesting Following Failure of ''As Found'' Type A Test - Corrective Action Plan, and III.A(8)(b)(ii) Option To Do More Frequent Type B and C Testing Rather Than More Type A Penalty Tests. The best estimate is that the proposed Appendix J would result in a cost savings ranging from about $100 million to $160 million, and increase routing occupational exposure on the order of 10,000 person-rem. These estimates capture the total impact to industry and the NRC over the assumed operating life of all existing and planned future power reactors. All dollar impacts projected to occur in future years have been present worthed at discount rates ranging from 5% to 10%.

Sciacca, F.; Nelson, W.; Simpkins, B.; Riordan, B.; Godfrey, P.; Cohen, S.; Beal, S.; Goldin, D.

1985-09-01T23:59:59.000Z

413

Construction and Test of Low Cost X-Ray Tomography Scanner for Physical-Chemical Analysis and Nondestructive Inspections  

SciTech Connect

X-ray computed tomography (CT) refers to the cross-sectional imaging of an object measuring the transmitted radiation at different directions. In this work, we describe the development of a low cost micro-CT X-ray scanner that is being developed for nondestructive testing. This tomograph operates using a microfocus X-ray source and contains a silicon photodiode as detectors. The performance of the system, by its spatial resolution, has been estimated through its Modulation Transfer Function-MTF and the obtained value at 10% of MTF is 661 {mu}m. It was built as a general purpose nondestructive testing device.

Oliveira, Jose Martins Jr. de [Universidade de Sorocaba-UNISO, Campus Seminario, Caixa Postal 578, Av. Dr. Eugenio Salermo, 100, Centro, 18035-430, Sorocaba, SP (Brazil); Martins, Antonio Cesar Germano [Universidade Estadual Paulista Julio de Mesquita Filho-UNESP, GASI, Av. 3 de Marco, 511, Alto da Boa Vista, 18087-180, Sorocaba, SP (Brazil)

2009-06-03T23:59:59.000Z

414

Design and Analysis of a Test Rig for Modeling the Bit/Formation Interface in Petroleum Drilling Applications  

E-Print Network (OSTI)

and horizontal wells and measuring the effects of various factors on the stability of perturbations on the system. A test rig concept has been developed to accurately measure the interaction forces and torques between the bit, formation and fluids during drilling...

Wilson, Joshua Kyle

2013-04-11T23:59:59.000Z

415

Quantification of multiple methane emission sources at landfills using a double tracer technique  

SciTech Connect

Research highlights: > Precise and reliable measurements of emissions from landfills are needed. > A tracer technique involving simultaneous release of two tracers was proven successful. > Measurements to be performed at times with low changing trends in barometric pressure. - Abstract: A double tracer technique was used successfully to quantify whole-site methane (CH{sub 4}) emissions from Fakse Landfill. Emissions from different sections of the landfill were quantified by using two different tracers. A scaled-down version of the tracer technique measuring close-by to localized sources having limited areal extent was also used to quantify emissions from on-site sources at the landfill facility, including a composting area and a sewage sludge storage pit. Three field campaigns were performed. At all three field campaigns an overall leak search showed that the CH{sub 4} emissions from the old landfill section were localized to the leachate collection wells and slope areas. The average CH{sub 4} emissions from the old landfill section were quantified to be 32.6 {+-} 7.4 kg CH{sub 4} h{sup -1}, whereas the source at the new section was quantified to be 10.3 {+-} 5.3 kg CH{sub 4} h{sup -1}. The CH{sub 4} emission from the compost area was 0.5 {+-} 0.25 kg CH{sub 4} h{sup -1}, whereas the carbon dioxide (CO{sub 2}) and nitrous oxide (N{sub 2}O) flux was quantified to be in the order of 332 {+-} 166 kg CO{sub 2} h{sup -1} and 0.06 {+-} 0.03 kg N{sub 2}O h{sup -1}, respectively. The sludge pit located west of the compost material was quantified to have an emission of 2.4 {+-} 0.63 kg h{sup -1} CH{sub 4}, and 0.03 {+-} 0.01 kg h{sup -1} N{sub 2}O.

Scheutz, C., E-mail: chs@env.dtu.dk [Department of Environmental Engineering, Technical University of Denmark, Miljovej, Building 113, 2800 Kongens Lyngby (Denmark); Samuelsson, J., E-mail: jerker.samuelsson@fluxsense.se [Chalmers University of Technology/FluxSense AB, SE-412 96 Goeteborg (Sweden); Fredenslund, A.M., E-mail: amf@env.dtu.dk [Department of Environmental Engineering, Technical University of Denmark, Miljovej, Building 113, 2800 Kongens Lyngby (Denmark); Kjeldsen, P., E-mail: pk@env.dtu.dk [Department of Environmental Engineering, Technical University of Denmark, Miljovej, Building 113, 2800 Kongens Lyngby (Denmark)

2011-05-15T23:59:59.000Z

416

TYBO/BENHAM: Model Analysis of Groundwater Flow and Radionuclide Migration from Underground Nuclear Tests in Southwestern Pahute Mesa, Nevada  

SciTech Connect

Recent field studies have led to the discovery of trace quantities of plutonium originating from the BENHAM underground nuclear test in two groundwater observation wells on Pahute Mesa at the Nevada Test Site. These observation wells are located 1.3 km from the BENHAM underground nuclear test and approximately 300 m from the TYBO underground nuclear test. In addition to plutonium, several other conservative (e.g. tritium) and reactive (e.g. cesium) radionuclides were found in both observation wells. The highest radionuclide concentrations were found in a well sampling a welded tuff aquifer more than 500m above the BENHAM emplacement depth. These measurements have prompted additional investigations to ascertain the mechanisms, processes, and conditions affecting subsurface radionuclide transport in Pahute Mesa groundwater. This report describes an integrated modeling approach used to simulate groundwater flow, radionuclide source release, and radionuclide transport near the BENHAM and TYBO underground nuclear tests on Pahute Mesa. The components of the model include a flow model at a scale large enough to encompass many wells for calibration, a source-term model capable of predicting radionuclide releases to aquifers following complex processes associated with nonisothermal flow and glass dissolution, and site-scale transport models that consider migration of solutes and colloids in fractured volcanic rock. Although multiple modeling components contribute to the methodology presented in this report, they are coupled and yield results consistent with laboratory and field observations. Additionally, sensitivity analyses are conducted to provide insight into the relative importance of uncertainty ranges in the transport parameters.

Andrew Wolfsberg; Lee Glascoe; Guoping Lu; Alyssa; Olson; Peter Lichtner; Maureen McGraw; Terry Cherry; ,; Guy Roemer

2002-09-01T23:59:59.000Z

417

Irrigation Pump Testing  

NLE Websites -- All DOE Office Websites (Extended Search)

Toolkit The Benefits of Irrigation Pump Testing & System Analysis Almost all irrigation pumps use an "impeller" to provide the centrifugal force to distribute water. Pumps with...

418

Standard test method for isotopic analysis of hydrolyzed uranium hexafluoride and uranyl nitrate solutions by thermal ionization mass spectrometry  

E-Print Network (OSTI)

1.1 This method applies to the determination of isotopic composition in hydrolyzed nuclear grade uranium hexafluoride. It covers isotopic abundance of 235U between 0.1 and 5.0 % mass fraction, abundance of 234U between 0.0055 and 0.05 % mass fraction, and abundance of 236U between 0.0003 and 0.5 % mass fraction. This test method may be applicable to other isotopic abundance providing that corresponding standards are available. 1.2 This test method can apply to uranyl nitrate solutions. This can be achieved either by transforming the uranyl nitrate solution to a uranyl fluoride solution prior to the deposition on the filaments or directly by depositing the uranyl nitrate solution on the filaments. In the latter case, a calibration with uranyl nitrate standards must be performed. 1.3 This test method can also apply to other nuclear grade matrices (for example, uranium oxides) by providing a chemical transformation to uranyl fluoride or uranyl nitrate solution. 1.4 This standard does not purport to address al...

American Society for Testing and Materials. Philadelphia

2005-01-01T23:59:59.000Z

419

COBRA-WC pretest predictions and post-test analysis of the FOTA temperature distribution during FFTF natural-circulation transients  

SciTech Connect

The natural circulation tests of the Fast Flux Test Facility (FFTF) demonstrated a safe and stable transition from forced convection to natural convection and showed that natural convection may adequately remove decay heat from the reactor core. The COBRA-WC computer code was developed by the Pacific Northwest laboratory (PNL) to account for buoyancy-induced coolant flow redistribution and interassembly heat transfer, effects that become important in mitigating temperature gradients and reducing reactor core temperatures when coolant flow rate in the core is low. This report presents work sponsored by the US Department of Energy (DOE) with the objective of checking the validity of COBRA-WC during the first 220 seconds (sec) of the FFTF natural-circulation (plant-startup) tests using recorded data from two instrumented Fuel Open Test Assemblies (FOTAs). Comparison of COBRA-WC predictions of the FOTA data is a part of the final confirmation of the COBRA-WC methodology for core natural-convection analysis.

Khan, E.U.; George, T.L.; Rector, D.R.

1982-06-23T23:59:59.000Z

420

EVALUATION OF CORE PHYSICS ANALYSIS METHODS FOR CONVERSION OF THE INL ADVANCED TEST REACTOR TO LOW-ENRICHMENT FUEL  

SciTech Connect

Computational neutronics studies to support the possible conversion of the ATR to LEU are underway. Simultaneously, INL is engaged in a physics methods upgrade project to put into place modern computational neutronics tools for future support of ATR fuel cycle and experiment analysis. A number of experimental measurements have been performed in the ATRC in support of the methods upgrade project, and are being used to validate the new core physics methods. The current computational neutronics work is focused on performance of scoping calculations for the ATR core loaded with a candidate LEU fuel design. This will serve as independent confirmation of analyses that have been performed previously, and will evaluate some of the new computational methods for analysis of a candidate LEU fuel for ATR.

Mark DeHart; Gray S. Chang

2012-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Evaluation of core physics analysis methods for conversion of the INL advanced test reactor to low-enrichment fuel  

SciTech Connect

Computational neutronics studies to support the possible conversion of the ATR to LEU are underway. Simultaneously, INL is engaged in a physics methods upgrade project to put into place modern computational neutronics tools for future support of ATR fuel cycle and experiment analysis. A number of experimental measurements have been performed in the ATRC in support of the methods upgrade project, and are being used to validate the new core physics methods. The current computational neutronics work is focused on performance of scoping calculations for the ATR core loaded with a candidate LEU fuel design. This will serve as independent confirmation of analyses that have been performed previously, and will evaluate some of the new computational methods for analysis of a candidate LEU fuel for ATR. (authors)

DeHart, M. D.; Chang, G. S. [Idaho National Laboratory, 2525 Fremont Street, Idaho Falls, ID 83415-3870 (United States)

2012-07-01T23:59:59.000Z

422

The spatial analysis of a prehistoric hunting adaptation: model development and testing for the Noble-Wieting site (ML 28), McLean County, Illinois  

E-Print Network (OSTI)

denuded of firewood and plant foods for a distance of nearly 1. 5 miles (Tindale 1972:241). Eventually, when a catchment is hunted without fulfilling marginal energy requirements, it is necessary to move the habitation site to a new location... DESCRIPTIVE STATISTICS FOR THE ISOLATED SAMPLE . . 145 VITA 146 LIST OF TABLES TABLE Page 1 Stepwise discriminant analysis results 2 K-S Test Results 82 89 xi LIST OF FIGURES FIGURE Page 1 The research area. 2 1824 vegetation in the research area...

Coleman, Roger Eugene

1984-01-01T23:59:59.000Z

423

Using the BEopt Automated Residential Simulation Test Suite to Enable Comparative Analysis Between Energy Simulation Engines: Preprint  

SciTech Connect

Verification and validation are crucial software quality control procedures when developing and implementing models. This is particularly important as a variety of stakeholders rely on accurate predictions from building simulation programs. This study uses the BEopt Automated Residential Simulation Test Suite (BARTS) to facilitate comparison of two energy simulation engines across various building components and includes models that isolate the impacts of specific building components on annual energy consumption. As a case study, BARTS has been used to identify important discrepancies between the engines for several components of the building models; these discrepancies are caused by differences in the models used by the engines or coding errors.

Tabares-Velasco, P. C.; Maguire, J.; Horowitz, S.; Christensen, C.

2014-09-01T23:59:59.000Z

424

Experimental analysis of control loops with different delay times in the supply air system of a radiator test rig  

Science Journals Connector (OSTI)

The test rig of low-temperature hot-water radiator is a typical multi-input multi-output (MIMO) thermal system with large time delay. Aiming at the control of the supply air temperature and the temperature of the environmental chamber in the test rig, the paper carries out the fuzzy control experiments and PI control experiments based on adjusting the electric heater in the supply air system, in which there are two control loops with various delay time. The experiments researched two types of fuzzy control methods which are the basic fuzzy control (BFC), and the self-organizing rules fuzzy control (SORFC) with zero initial control rules. For the control loop of supply air temperature with short delay time, PI control performs better with fast convergence speed and small overshoot than the BFC and the SORFC. The convergence speed of the BFC method is lower than other two control methods. For the control loop of chamber temperature with long delay time, the SORFC has a satisfied control performance with less overshoot and stable error than the BFC and PI control.

Yongpan Chen; Jili Zhang; Zhen Lu; Tianyi Zhao; Hui Liu

2011-01-01T23:59:59.000Z

425

TIGER: A data analysis pipeline for testing the strong-field dynamics of general relativity with gravitational wave signals from coalescing compact binaries  

E-Print Network (OSTI)

The direct detection of gravitational waves with upcoming second-generation gravitational wave detectors such as Advanced LIGO and Virgo will allow us to probe the genuinely strong-field dynamics of general relativity (GR) for the first time. We present a data analysis pipeline called TIGER (Test Infrastructure for GEneral Relativity), which is designed to utilize detections of compact binary coalescences to test GR in this regime. TIGER is a model-independent test of GR itself, in that it is not necessary to compare with any specific alternative theory. It performs Bayesian inference on two hypotheses: the GR hypothesis $\\mathcal{H}_{\\rm GR}$, and $\\mathcal{H}_{\\rm modGR}$, which states that one or more of the post-Newtonian coefficients in the waveform are not as predicted by GR. By the use of multiple sub-hypotheses of $\\mathcal{H}_{\\rm modGR}$, in each of which a different number of parameterized deformations of the GR phase are allowed, an arbitrarily large number of 'testing parameters' can be used without having to worry about a model being insufficiently parsimonious if the true number of extra parameters is in fact small. TIGER is well-suited to the regime where most sources have low signal-to-noise ratios, again through the use of these sub-hypotheses. Information from multiple sources can trivially be combined, leading to a stronger test. We focus on binary neutron star coalescences, for which sufficiently accurate waveform models are available that can be generated fast enough on a computer to be fit for use in Bayesian inference. We show that the pipeline is robust against a number of fundamental, astrophysical, and instrumental effects, such as differences between waveform approximants, a limited number of post-Newtonian phase contributions being known, the effects of neutron star spins and tidal deformability on the orbital motion, and instrumental calibration errors.

Michalis Agathos; Walter Del Pozzo; Tjonnie G. F. Li; Chris Van Den Broeck; John Veitch; Salvatore Vitale

2013-11-03T23:59:59.000Z

426

Film Deposition, Cryogenic RF Testing and Materials Analysis of a Nb/Cu Single Cell SRF Cavity  

SciTech Connect

In this study, we present preliminary results on using a cathodic-arc-discharge Nb plasma ion source to establish a Nb film-coated single-cell Cu cavity for SRF research. The polycrystalline Cu cavity was fabricated and mirror-surface-finished by a centrifugal barrel polishing (CBP) process at Jefferson Lab. Special pre-coating processes were conducted, in order to create a template-layer for follow-on Nb grain thickening. A sequence of cryogenic RF testing demonstrated that the Nb film does show superconductivity. But the quality factor of this Nb/Cu cavity is low as a result of high residual surface resistance. We are conducting a thorough materials characterization to explore if some microstructural defects or hydrogen impurities, led to such a low quality factor.

Zhao, Xin [JLAB; Geng, Rongli [JLAB; Palczerski, Ari [JLAB; Li, Yongming [Peking

2013-09-01T23:59:59.000Z

427

Comparison and Analysis of Twist Pitch Length Test Methods for ITER Nb3Sn and NbTi Strands  

E-Print Network (OSTI)

A twisted multifilamentary structure is needed for Nb3Sn and NbTi strands to be used in the International Thermonuclear Experimental Reactor (ITER) magnets. As important parameters for the superconducting strands design and production, the twist pitch length and direction of strands must meet the requirements according to ITER Procurement Arrangement (PA) and this must be verified. The technical requirements are 15mm+/-2mm for twist pitch length and right hand twist for direction. The strand twist pitch and the twist direction can be measured on straight sections of strand, which is recognized by the repetition of filament bundles or by the angle of the filaments. Several test methods and results are described and compared in this paper. The accuracy, uncertainty and feasibility of different methods are analyzed and recommended measurement methods are proposed for ITER strands verification.

Fang Liu; Feng Long; Chao Chen; Bo Liu; Yu Wu; Huajun Liu

2013-05-08T23:59:59.000Z

428

Linear Collider Test Facility: Twiss Parameter Analysis at the IP/Post-IP Location of the ATF2 Beam Line  

SciTech Connect

At the first stage of the ATF2 beam tuning, vertical beam size is usually bigger than 3 {micro}m at the IP. Beam waist measurements using wire scanners and a laser wire are usually performed to check the initial matching of the beam through to the IP. These measurements are described in this paper for the optics currently used ({beta}{sub x} = 4cm and {beta}{sub y} = 1mm). Software implemented in the control room to automate these measurements with integrated analysis is also described. Measurements showed that {beta} functions and emittances were within errors of measurements when no rematching and coupling corrections were done. However, it was observed that the waist in the horizontal (X) and vertical (Y) plane was abnormally shifted and simulations were performed to try to understand these shifts. They also showed that multiknobs are needed in the current optics to correct simultaneously {alpha}{sub x}, {alpha}{sub y} and the horizontal dispersion (D{sub x}). Such multiknobs were found and their linearity and orthogonality were successfully checked using MAD optics code. The software for these multiknobs was implemented in the control room and waist scan measurements using the {alpha}{sub y} knob were successfully performed.

Bolzon, Benoit; /Annecy, LAPP; Jeremie, Andrea; /Annecy, LAPP; Bai, Sha; /Beijing, Inst. High Energy Phys.; Bambade, Philip; /KEK, Tsukuba; White, Glen; /SLAC

2012-07-02T23:59:59.000Z

429

Rate-limited U(VI) desorption during a small-scale tracer test in a hetereogeneous uranium contaminated aquifer  

E-Print Network (OSTI)

of Contaminants in the Hanford Vadose Zone, Vadose Zone J. ,transport in a contaminated Hanford sediment, Environ. Sci.of U(VI) observed in Hanford sediment column experiments. A

Fox, P.M.

2013-01-01T23:59:59.000Z

430

Thermal single-well injection-withdrawal tracer tests for determining fracture-matrix heat transfer area  

E-Print Network (OSTI)

rates of rocks- to-fluid heat transfer, and thereby thesurface for heat transfer to injected fluids circulating influids, and thereby increase the overall rate of heat transfer

Pruess, K.

2011-01-01T23:59:59.000Z

431

Tracer testing using naphthalene disulfonate compounds at Soultz-sous-Forts (France) 1 EC Contract ENK5-2000-00301  

E-Print Network (OSTI)

- Location map and profiles of the geothermal wells (from Gentier et al., 2003a and b). Figure 2b - Geological cross-section between the geothermal wells (from Gentier et al., 2003b). The hot fluid produced

Paris-Sud XI, Université de

432

Coaxial test fixture  

DOE Patents (OSTI)

This invention pertains to arrangements for performing electrical tests on contact material samples, and in particular for testing contact material test samples in an evacuated environment under high current loads. Frequently, it is desirable in developing high-current separable contact material, to have at least a preliminary analysis of selected candidate conductor materials. Testing of material samples will hopefully identify materials unsuitable for high current electrical contact without requiring incorporation of the materials into a completed and oftentimes complex structure.

Praeg, W.F.

1984-03-30T23:59:59.000Z

433

Adaptive Test Cost and Quality Optimization Through An Effective Yet Efficient Delivery of Chip Specific Tests /  

E-Print Network (OSTI)

S. Ha, "On the Generation of Test Patterns for CombinationalDesign, Implementation and Analysis of Test Experiments,"in International Test Conference, 2006. P. Nigh, W. Needham,

Arslan, Baris

2013-01-01T23:59:59.000Z

434

Comparison of the optoacoustic and Hg tracer methods for the study of energy-transfer processes in gas mixtures  

SciTech Connect

Rates of energy transfer from vibrationally excited SF/sub 6/ and pentafluorobenzene to argon in the gas phase have been studied by using the Hg tracer technique and time-resolved optoacoustics. These two techniques which rely on fundamentally different physical principles were found to give equivalent results. The implications for the study of energy-transfer processes in gas mixtures are discussed.

Wallington, T.J.; Braun, W.; Beck, K.M.; Gordon, R.J.

1988-06-30T23:59:59.000Z

435

{sup 41}Ca as a tracer for calcium uptake and deposition in heart tissue during ischemia and reperfusion  

SciTech Connect

We have developed techniques and are commencing experiments using enriched {sup 41}Ca as a tracer in isolated rabbit heart preparations. The aims of the study are to measure calcium uptake and deposition in response to cardiac ischemia and reperfusion, and to investigate events and mechanism leading to irreversible myocyte injury.

Southon, J.R. [Lawrence Livermore National Lab., CA (United States); Bishop, M.S.; Kost, G.J. [California Univ., Davis, CA (United States). Dept. of Medical Pathology and Biomedical Engineering

1993-09-17T23:59:59.000Z

436

lrgpr: interactive linear mixed model analysis of genome-wide association studies with composite hypothesis testing and regression diagnostics in R  

Science Journals Connector (OSTI)

......studies (GWAS). Current implementations test the effect of one or more genetic markers...model that allows composite hypothesis tests to consider genotype interactions with...genome-wide association studies (GWAS) test statistics and can lead to a substantial......

Gabriel E. Hoffman; Jason G. Mezey; Eric E. Schadt

2014-11-01T23:59:59.000Z

437

Geotechnical characterization of mixed sandy and silty soils using piezocone tests: Analysis of partial drainage phenomena and rate effects on the experimental soil response.  

E-Print Network (OSTI)

??The cone penetration test (CPT), together with its recent variation (CPTU), has become the most widely used in-situ testing technique for soil profiling and geotechnical (more)

Garcia Martinez, Maria Fernanda and#60;1986and#62

2014-01-01T23:59:59.000Z

438

3D MHD leadlithium liquid metal flow analysis and experiments in a Test-Section of multiple rectangular bends at moderate to high Hartmann numbers  

Science Journals Connector (OSTI)

Abstract Experiments with liquid leadlithium (PbLi) were carried out in a stainless steel (SS) Test Section (TS) consisting of multiple 90 bends for various flow rates and applied magnetic fields of up to 4T. Characteristic MHD flow parameter Hartmann number, Ha ( = B 0 a ? / ? , Ha2 is the ratio of electromagnetic force to viscous force) and interaction parameter, N ( = ? a B 0 2 / ? U , N is the ratio of electromagnetic force to inertial force) of these experiments were varied from Ha=515 to 2060 and N=25 to 270 by changing the applied magnetic field and flow rates respectively. Three dimensional numerical simulations have been carried out using MHD module of FLUENT code. The measured Hartmann and side wall electric potential distribution at various locations of the Test Section have been compared with the numerical simulation results for different Hartmann numbers and interaction parameters (Ha=1030, N=25, 40, 67 for B=2T and Ha=2060, N=129, 161, 270 for B=4T). The numerical predictions based on laminar flow model are matching well with the measured values at all locations including bend regions for high magnetic field and low flow rates. However, at higher flow rates and lower magnetic fields (smaller Ha/Re values), the agreement was not good near the bend regions. This may be attributed to the significant presence of turbulence that was not accounted in the present simulation. The core velocity, estimated from the measured Hartmann wall potential at the locations far away from the bends, matched well with the numerical results. The analysis indicates that the flow distribution becomes rapidly symmetric when it turns at the bend where both the legs are perpendicular to the applied magnetic field. In contrast, flow distribution remains asymmetric for a longer distance when it turns from parallel to perpendicular direction of the applied field. The code is predicting reasonably well for MHD parameters relevant to Blanket Modules for single channel flows with bends.

P.K. Swain; P. Satyamurthy; R. Bhattacharyay; A. Patel; A. Shishko; E. Platacis; A. Ziks; S. Ivanov; A.V. Despande

2013-01-01T23:59:59.000Z

439

Analysis of Thermally Induced Changes in Fractured Rock Permeability during Eight Years of Heating and Cooling at the Yucca Mountain Drift Scale Test  

SciTech Connect

We analyzed a data set of thermally induced changes in fractured rock permeability during a four-year heating (up to 200 C) and subsequent four-year cooling of a large volume, partially saturated and highly fractured volcanic tuff at the Yucca Mountain Drift Scale Test, in Nevada, USA. Permeability estimates were derived from about 700 pneumatic (air-injection) tests, taken periodically at 44 packed-off borehole intervals during the heating and cooling cycle from November 1997 through November 2005. We analyzed air-permeability data by numerical modeling of thermally induced stress and moisture movements and their impact on air permeability within the highly fractured rock. Our analysis shows that changes in air permeability during the initial four-year heating period, which were limited to about one order of magnitude, were caused by the combined effects of thermal-mechanically-induced stress on fracture aperture and thermal-hydrologically-induced changes in fracture moisture content. At the end of the subsequent four-year cooling period, air-permeability decreases (to as low as 0.2 of initial) and increases (to as high as 1.8 of initial) were observed. By comparison to the calculated thermo-hydro-elastic model results, we identified these remaining increases or decreases in air permeability as irreversible changes in intrinsic fracture permeability, consistent with either inelastic fracture shear dilation (where permeability increased) or inelastic fracture surface asperity shortening (where permeability decreased). In this paper, we discuss the possibility that such fracture asperity shortening and associated decrease in fracture permeability might be enhanced by dissolution of highly stressed surface asperities over years of elevated stress and temperature.

Rutqvist, J.; Freifeld, B.; Min, K.-B.; Elsworth, D.; Tsang, Y.

2008-06-01T23:59:59.000Z

440

Diesel Engine Idling Test  

SciTech Connect

In support of the Department of Energys FreedomCAR and Vehicle Technology Program Office goal to minimize diesel engine idling and reduce the consumption of millions of gallons of diesel fuel consumed during heavy vehicle idling periods, the Idaho National Laboratory (INL) conducted tests to characterize diesel engine wear rates caused by extended periods of idling. INL idled two fleet buses equipped with Detroit Diesel Series 50 engines, each for 1,000 hours. Engine wear metals were characterized from weekly oil analysis samples and destructive filter analyses. Full-flow and the bypass filter cartridges were removed at four stages of the testing and sent to an oil analysis laboratory for destructive analysis to ascertain the metals captured in the filters and to establish wear rate trends. Weekly samples were sent to two independent oil analysis laboratories. Concurrent with the filter analysis, a comprehensive array of other laboratory tests ascertained the condition of the oil, wear particle types, and ferrous particles. Extensive ferrogram testing physically showed the concentration of iron particles and associated debris in the oil. The tests results did not show the dramatic results anticipated but did show wear trends. New West Technologies, LLC, a DOE support company, supplied technical support and data analysis throughout the idle test.

Larry Zirker; James Francfort; Jordon Fielding

2006-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "analysis tracer testing" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Analysis  

NLE Websites -- All DOE Office Websites (Extended Search)

Analysis Analysis of Short-Bunch Production with the APS Booster and a Bunch Compressor Michael Borland, AOD/OAG ∗ August 8, 2003 1 Abstract There is significant interest among x-ray scientists in short-pulse x-rays. The x-rays from the APS ring, although very bright, are produced by an electron bunch with an rms length of more than 30 ps. Typically, it is only a linear accelerator that can produce a very short bunch. An idea was brought to my attention by Glenn Decker that might allow us to produce a short bunch using the APS booster. This idea involves extracting the beam from the booster at 3 to 4 GeV, while it is still relatively short, then compressing it with a magnetic bunch compressor. In this note, we present a preliminary analysis of this idea, along with the related idea of using a nonequilibrium beam from the APS photoinjector. 2 Background We will begin with an examination of the ideal result

442

Standard test methods for chemical, mass spectrometric, and spectrochemical analysis of nuclear-grade aluminum oxide and aluminum oxide-boron carbide composite pellets  

E-Print Network (OSTI)

1.1 These test methods cover procedures for the chemical, mass spectrometric, and spectrochemical analysis of nuclear-grade aluminum oxide and aluminum oxide-boron carbide composite pellets to determine compliance with specifications. 1.2 The analytical procedures appear in the following order: Sections Boron by Titrimetry 7 to 13 Separation of Boron for Mass Spectrometry 14 to 19 Isotopic Composition by Mass Spectrometry 20 to 23 Separation of Halides by Pyrohydrolysis 24 to 27 Fluoride by Ion-Selective Electrode 28 to 30 Chloride, Bromide, and Iodide by Amperometric Microtitrimetry 31 to 33 Trace Elements by Emission Spectroscopy 34 to 46 1.3 The values stated in SI units are to be regarded as the standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. (F...

American Society for Testing and Materials. Philadelphia

1994-01-01T23:59:59.000Z

443

Quantitative determination of collateral anterior olfactory nucleus projections using a fluorescent tracer with an algebraic solution to the problem of double retrograde labeling  

Science Journals Connector (OSTI)

The bilateral projections of the rat anterior olfactory nucleus (AON) were evaluated using retrograde fluorescent tracers. Competitive effects of these tracers led to severe underestimation of bilaterally projecting neurons, when double-labeled cells were counted. The underestimate was corrected using a numerical approach, which is of general utility for problems in double labeling and requires only a single tracer. With this method we estimated that approximately 63% of AON neurons project bilaterally to the olfactory bulbs, except for the external part which projects exclusively to the contralateral olfactory bulb. No other AON neurons project only to the contralateral bulb.

George F. Alheid; Jrn Carlsen; Jose de Olmos; Lennart Heimer

1984-01-01T23:59:59.000Z

444

Random Testing versus Partition Testing.  

E-Print Network (OSTI)

?? The difference between Partition Testing and Random Testing has been thoroughlyinvestigated theoretically. In this thesis we present a practical study ofthe differences between random (more)

Oftedal, Kristian

2011-01-01T23:59:59.000Z

445

Sample Proficiency Test exercise  

SciTech Connect

The current format of the OPCW proficiency tests has multiple sets of 2 samples sent to an analysis laboratory. In each sample set, one is identified as a sample, the other as a blank. This method of conducting proficiency tests differs from how an OPCW designated laboratory would receive authentic samples (a set of three containers, each not identified, consisting of the authentic sample, a control sample, and a blank sample). This exercise was designed to test the reporting if the proficiency tests were to be conducted. As such, this is not an official OPCW proficiency test, and the attached report is one method by which LLNL might report their analyses under a more realistic testing scheme. Therefore, the title on the report ''Report of the Umpteenth Official OPCW Proficiency Test'' is meaningless, and provides a bit of whimsy for the analyses and readers of the report.

Alcaraz, A; Gregg, H; Koester, C

2006-02-05T23:59:59.000Z

446

Summary of micrographic analysis of selected core samples from Well ER-20-6{number_sign}1 in support of matrix diffusion testing  

SciTech Connect

ER-20-6{number_sign}1 was cored to determine fracture and lithologic properties proximal to the BULLION test cavity. Selected samples from ER-20-6{number_sign}1 were subjected to matrix and/or fracture diffusion experiments to assess solute movement in this environment. Micrographic analysis of these samples suggests that the similarity in bulk chemical composition results in very similar mineral assemblages forming along natural fractures. These samples are all part of the mafic-poor Calico Hills Formation and exhibit fracture-coating mineral assemblages dominated by mixed illite/smectite clay and illite, with local opaline silica (2,236 and 2, 812 feet), and zeolite (at 2,236 feet). Based on this small sample population, the magnitude to which secondary phases have formed on fracture surfaces bears an apparently inverse relationship to the competency of the host lithology, reflected by variations in the degree of fracturing and the development of secondary phases on fracture surfaces. In the flow breccia at 2,851 feet, thinly developed, localized coatings are developed along persistent open fracture apertures in this competent rock type. Fractures in the devitrified lava from 2,812 feet are irregular, and locally blocked by secondary mineral phases. Natural fractures on the zeolitized tuff from 2,236 feet are discontinuous and irregular and typically obstructed with secondary mineral phases. There are also a second set of clean fractures in the 2,236 foot sample which lack secondary mineral phases and are interpreted to have been induced by the BULLION test. Based on these results, it is expected that matrix diffusion will be enhanced in samples where potentially transmissive fractures exhibit the greatest degree of obstruction (2,236>2,812=2,835>2,851). It is unclear what influence the induced fractures observed at 2,236 feet may have on diffusion given the lack of knowledge on their extent. It is assumed that the bulk matrix diffusion characteristics of the sample at 2,835 feet will be equivalent to the unfractured characteristics of the sample at 2,812 feet.

IT Corporation, Las Vegas

1998-09-25T23:59:59.000Z

447

Spectroscopic diagnostics for ablation cloud of tracer-encapsulated solid pellet in LHD  

SciTech Connect

In the Large Helical Device (LHD), various spectroscopic diagnostics have been applied to study the ablation process of an advanced impurity pellet, tracer-encapsulated solid pellet (TESPEL). The total light emission from the ablation cloud of TESPEL is measured by photomultipliers equipped with individual interference filters, which provide information about the TESPEL penetration depth. The spectra emitted from the TESPEL ablation cloud are measured with a 250 mm Czerny-Turner spectrometer equipped with an intensified charge coupled device detector, which is operated in the fast kinetic mode. This diagnostic allows us to evaluate the temporal evolution of the electron density in the TESPEL ablation cloud. In order to gain information about the spatial distribution of the cloud parameters, a nine image optical system that can simultaneously acquire nine images of the TESPEL ablation cloud has recently been developed. Several images of the TESPEL ablation cloud in different spectral domains will give us the spatial distribution of the TESPEL cloud density and temperature.

Tamura, N.; Kalinina, D. V.; Sato, K.; Sudo, S. [National Institute for Fusion Science, 322-6, Oroshi-cho, Toki-City, Gifu 509-5292 (Japan); Sergeev, V. Yu.; Miroshnikov, I. V.; Sharov, I. A.; Bakhareva, O. A.; Ivanova, D. M.; Timokhin, V. M. [State Polytechnical University, Politechnicheskaya 29, St. Petersburg 195251 (Russian Federation); Kuteev, B. V. [Nuclear Fusion Institute, RRC 'Kurchatov Institute', Kurchatov square 1, Moscow 123182 (Russian Federation)

2008-10-15T23:59:59.000Z

448

Tracer method to measure landfill gas emissions from leachate collection systems  

Science Journals Connector (OSTI)

This paper describes a method developed for quantification of gas emissions from the leachate collection system at landfills and present emission data measured at two Danish landfills with no landfill gas collection systems in place: Fakse landfill and AV Milj. Landfill top covers are often designed to prevent infiltration of water and thus are made from low permeable materials. At such sites a large part of the gas will often emit through other pathways such as the leachate collection system. These point releases of gaseous constituents from these locations cannot be measured using traditional flux chambers, which are often used to measure gas emissions from landfills. Comparing tracer measurements of methane (CH4) emissions from leachate systems at Fakse landfill and AV Milj to measurements of total CH4 emissions, it was found that approximately 47% (351kg CH4 d?1) and 27% (211kg CH4 d?1), respectively, of the CH4 emitting from the sites occurred from the leachate collection systems. Emission rates observed from individual leachate collection wells at the two landfills ranged from 0.1 to 76kg CH4 d?1. A strong influence on emission rates caused by rise and fall in atmospheric pressure was observed when continuously measuring emission from a leachate well over a week. Emission of CH4 was one to two orders of magnitude higher during periods of decreasing pressure compared to periods of increasing pressure.

Anders M. Fredenslund; Charlotte Scheutz; Peter Kjeldsen

2010-01-01T23:59:59.000Z

449

129 Iodine: A New Hydrologic Tracer for Aquifer Recharge Conditions Influenced by River Flow Rate and Evapotranspiration  

E-Print Network (OSTI)

County using boron isotopes and general geochemistry, In Lawrence Livermore National Laboratory UCRL-ID-133529 (pp. 44). ? Davisson, M.L., Hudson, G.B., Herndon, R., & Woodside, G. (1999b). Report on isotope tracer investigations in the Forebay... of the Orange County Groundwater Basin: Fiscal years 1996 and 1997, In Lawrence Livermore National Laboratory UCRL-ID- 133531 (pp. 44). ? Dissanayake, C.B. & Chandrajith, R. (1999). Medical geochemistry of tropical environments. Earth-Science Reviews 47, 219...

Schwehr, K. A.; Santschi, P. H.; Moran, J. E.

2003-01-01T23:59:59.000Z

450

Analysis of core samples from the BPXA-DOE-USGS Mount Elbert gas hydrate stratigraphic test well: Insights into core disturbance and handling  

SciTech Connect

Collecting and preserving undamaged core samples containing gas hydrates from depth is difficult because of the pressure and temperature changes encountered upon retrieval. Hydrate-bearing core samples were collected at the BPXA-DOE-USGS Mount Elbert Gas Hydrate Stratigraphic Test Well in February 2007. Coring was performed while using a custom oil-based drilling mud, and the cores were retrieved by a wireline. The samples were characterized and subsampled at the surface under ambient winter arctic conditions. Samples thought to be hydrate bearing were preserved either by immersion in liquid nitrogen (LN), or by storage under methane pressure at ambient arctic conditions, and later depressurized and immersed in LN. Eleven core samples from hydrate-bearing zones were scanned using x-ray computed tomography to examine core structure and homogeneity. Features observed include radial fractures, spalling-type fractures, and reduced density near the periphery. These features were induced during sample collection, handling, and preservation. Isotopic analysis of the methane from hydrate in an initially LN-preserved core and a pressure-preserved core indicate that secondary hydrate formation occurred throughout the pressurized core, whereas none occurred in the LN-preserved core, however no hydrate was found near the periphery of the LN-preserved core. To replicate some aspects of the preservation methods, natural and laboratory-made saturated porous media samples were frozen in a variety of ways, with radial fractures observed in some LN-frozen sands, and needle-like ice crystals forming in slowly frozen clay-rich sediments. Suggestions for hydrate-bearing core preservation are presented.

Kneafsey, Timothy J.; Lu, Hailong; Winters, William; Boswell, Ray; Hunter, Robert; Collett, Timothy S.

2009-09-01T23:59:59.000Z

451

Characterization of volatile organic compounds (VOCs) in Asian and north American pollution plumes during INTEX-B: identification of specific Chinese air mass tracers  

E-Print Network (OSTI)

coal and biofuel combustion and biomass burning (Khalil andcombustion products ethyne and benzene, and of the biomass/combustion tracer ethyne, the industrial solvent CH 2 Cl 2 , and the two coal/biomass

2009-01-01T23:59:59.000Z

452

A method for activation analysis of ruthenium in sea water  

E-Print Network (OSTI)

of these isotopes in the marine environment, it is essential that a method for the analysis of trace amounts of stable ruthenium be developed, and applied to the study of the chemical and physical dis- tribution of ruthenium in sea water, marine biota... 100 27. 2 82 34. 8 100 30. 2 91 30. 6 92 26. 9 81 8 (Tracer Only) 34. 5 100 Standard 33. 3 Average Counting time ? Eorty minutes 103 Tracer ? Ru 93 Stable ruthenium added ? 0. Z6 ug 14 TABLE 4 Nuclear Data for Ruthenium Isotope Per Cent...

Dixon, Bryan William

2012-06-07T23:59:59.000Z

453

Mobile Testing  

Science Journals Connector (OSTI)

Mobile apps are everywhere. Some apps entertain and others enable business transactions. Apps increasingly interact with complex IT landscapes. For example, a banking app on a mobile device acts as a front end that invokes services on a back-end server ... Keywords: mobile apps, mobile devices, software quality management, software testing, test automation, test strategy

Klaus Haller

2013-11-01T23:59:59.000Z

454

Modeling The GRB Host Galaxy Mass Distribution: Are GRBs Unbiased Tracers of Star Formation?  

SciTech Connect

We model the mass distribution of long gamma-ray burst (GRB) host galaxies given recent results suggesting that GRBs occur in low metallicity environments. By utilizing measurements of the redshift evolution of the mass-metallicity (M-Z) relationship for galaxies, along with a sharp host metallicity cut-off suggested by Modjaz and collaborators, we estimate an upper limit on the stellar mass of a galaxy that can efficiently produce a GRB as a function of redshift. By employing consistent abundance indicators, we find that sub-solar metallicity cut-offs effectively limit GRBs to low stellar mass spirals and dwarf galaxies at low redshift. At higher redshifts, as the average metallicity of galaxies in the Universe falls, the mass range of galaxies capable of hosting a GRB broadens, with an upper bound approaching the mass of even the largest spiral galaxies. We compare these predicted limits to the growing number of published GRB host masses and find that extremely low metallicity cut-offs of 0.1 to 0.5 Z{sub {circle_dot}} are effectively ruled out by a large number of intermediate mass galaxies at low redshift. A mass function that includes a smooth decrease in the efficiency of producing GRBs in galaxies of metallicity above 12+log(O/H){sub KK04} = 8.7 can, however, accommodate a majority of the measured host galaxy masses. We find that at z {approx} 1, the peak in the observed GRB host mass distribution is inconsistent with the expected peak in the mass of galaxies harboring most of the star formation. This suggests that GRBs are metallicity biased tracers of star formation at low and intermediate redshifts, although our model predicts that this bias should disappear at higher redshifts due to the evolving metallicity content of the universe.

Kocevski, Daniel; /KIPAC, Menlo Park; West, Andrew A.; /UC, Berkeley, Astron. Dept. /MIT, MKI; Modjaz, Maryam; /UC, Berkeley, Astron. Dept.

2009-08-03T23:59:59.000Z

455

Stress Test | Open Energy Information  

Open Energy Info (EERE)

Stress Test Stress Test Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Stress Test Details Activities (1) Areas (1) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: Well Testing Techniques Parent Exploration Technique: Well Testing Techniques Information Provided by Technique Lithology: Stratigraphic/Structural: Fracture distribution and ambient tectonic stresses Hydrological: Fluid flow direction Thermal: Dictionary.png Stress Test: A geologic stress analysis based on images of a borehole wall and hydraulic fracturing tests to characterize fracture orientations and stress magnitudes in order to identify stress planes and zones of potential permeability. Other definitions:Wikipedia Reegle

456

PHIL Inverter Test Report: Analysis of High-Penetration Levels of PV into the Distribution Grid in California, March 12 - March 16, 2012  

SciTech Connect

This report describes power hardware-in-the-loop simulation testing of a 500 kW Satcon photovoltaic inverter, conducted at the Center for Advanced Power Systems at Florida State University from March 12th through March 16th, 2012. Testing was led by a team from the National Renewable Energy Laboratory. The report reviews the results of data captured during the course of testing. The tests were used to demonstrate operation of and gather data from the inverter in a simulated operational environment. Testing demonstrated the ability of the inverter to operate in either a Power Factor Control Mode or a Reactive Power Command Mode, and to respond to real power limits.

Kromer, M.

2013-06-01T23:59:59.000Z

457

OIL ANALYSIS LAB TRIVECTOR ANALYSIS  

E-Print Network (OSTI)

OIL ANALYSIS LAB TRIVECTOR ANALYSIS This test method is a good routine test for the overall condition of the oil, the cleanliness, and can indicate the presence of wear metals that could be coming of magnetic metal particles within the oil. This may represent metals being worn from components (i

458

Analysis of the Variability of Classified and Unclassified Radiological Source term Inventories in the Rainier Mesa/Shoshone Mountain Area, Nevada Test Site  

SciTech Connect

It has been proposed that unclassified source terms used in RM/SM reactive transport modeling investigations should be based on yield-weighted source terms calculated using the RM/SM average source term from Bowen et al. (2001) and the unclassified announced yields reported in DOE/NV-209. This unclassified inventory is likely to be used in unclassified contaminant boundary calculations and is, thus, relevant to compare to the classified inventory. They have examined the classified radionuclide inventory produced by 73 underground nuclear tests conducted in the Rainier Mesa/Shoshone Mountain (RM/SM) area of the Nevada Test Site. The goals were to (1) evaluate the variability in classified radiological source terms among the 73 tests and (2) and compare that variability and inventory uncertainties to an average unclassified inventory (e.g. Bowen 2001). To evaluate source term variability among the 73 tests, radiological inventories were compared on two relative scales: geometric mean and yield-weighted geometric mean. Furthermore, radiological inventories were either decay corrected to a common date (9/23/1992) or the time zero (t{sub 0}) of each test. Thus, a total of four data sets were produced. The date of 9/23/1992 was chosen based on the date of the last underground nuclear test at the Nevada Test Site.

Zhao, P; Zavarin, M

2008-06-04T23:59:59.000Z

459

Evaluation of the Repeatability of the Delta Q Duct Leakage Testing TechniqueIncluding Investigation of Robust Analysis Techniques and Estimates of Weather Induced Uncertainty  

SciTech Connect

The DeltaQ test is a method of estimating the air leakage from forced air duct systems. Developed primarily for residential and small commercial applications it uses the changes in blower door test results due to forced air system operation. Previous studies established the principles behind DeltaQ testing, but raised issues of precision of the test, particularly for leaky homes on windy days. Details of the measurement technique are available in an ASTM Standard (ASTM E1554-2007). In order to ease adoption of the test method, this study answers questions regarding the uncertainty due to changing weather during the test (particularly changes in wind speed) and the applicability to low leakage systems. The first question arises because the building envelope air flows and pressures used in the DeltaQ test are influenced by weather induced pressures. Variability in wind induced pressures rather than temperature difference induced pressures dominates this effect because the wind pressures change rapidly over the time period of a test. The second question needs to answered so that DeltaQ testing can be used in programs requiring or giving credit for tight ducts (e.g., California's Building Energy Code (CEC 2005)). DeltaQ modeling biases have been previously investigated in laboratory studies where there was no weather induced changes in envelope flows and pressures. Laboratory work by Andrews (2002) and Walker et al. (2004) found biases of about 0.5% of forced air system blower flow and individual test uncertainty of about 2% of forced air system blower flow. The laboratory tests were repeated by Walker and Dickerhoff (2006 and 2008) using a new ramping technique that continuously varied envelope pressures and air flows rather than taking data at pre-selected pressure stations (as used in ASTM E1554-2003 and other previous studies). The biases and individual test uncertainties for ramping were found to be very close (less than 0.5% of air handler flow) to those found in for the pressure station approach. Walker and Dickerhoff also included estimates of DeltaQ test repeatability based on the results of field tests where two houses were tested multiple times. The two houses were quite leaky (20-25 Air Changes per Hour at 50Pa (0.2 in. water) (ACH50)) and were located in the San Francisco Bay area. One house was tested on a calm day and the other on a very windy day. Results were also presented for two additional houses that were tested by other researchers in Minneapolis, MN and Madison, WI, that had very tight envelopes (1.8 and 2.5 ACH50). These tight houses had internal duct systems and were tested without operating the central blower--sometimes referred to as control tests. The standard deviations between the multiple tests for all four houses were found to be about 1% of the envelope air flow at 50 Pa (0.2 in. water) (Q50) that led to the suggestion of this as a rule of thumb for estimating DeltaQ uncertainty. Because DeltaQ is based on measuring envelope air flows it makes sense for uncertainty to scale with envelope leakage. However, these tests were on a limited data set and one of the objectives of the current study is to increase the number of tested houses. This study focuses on answering two questions: (1) What is the uncertainty associated with changes in weather (primarily wind) conditions during DeltaQ testing? (2) How can these uncertainties be reduced? The first question is addressing issues of repeatability. To study this five houses were tested as many times as possible over a day. Weather data was recorded on-site--including the local windspeed. The result from these five houses were combined with the two Bay Area homes from the previous studies. The variability of the tests (represented by the standard deviation) is the repeatability of the test method for that house under the prevailing weather conditions. Because the testing was performed over a day a wide range of wind speeds was achieved following typical diurnal variations of low wind in the early morning and greatest winds in the late afternoon/early

Dickerhoff, Darryl; Walker, Iain

2008-08-01T23:59:59.000Z

460

RMOTC - Testing - Exploration  

NLE Websites -- All DOE Office Websites (Extended Search)

Exploration Helicopter flying over RMOTC testing facility for leak detection survey test Notice: As of July 15th 2013, the Department of Energy announced the intent to sell Naval Petroleum Reserve Number 3 (NPR3). The sale of NPR-3 will also include the sale of all equipment and materials onsite. A decision has been made by the Department of Energy to complete testing at RMOTC by July 1st, 2014. RMOTC will complete testing in the coming year with the currently scheduled testing partners. For more information on the sale of NPR-3 and sale of RMOTC equipment and materials please join our mailing list here. RMOTC's extensive exploration-related data sets, including 3D and 2D seismic, wells and logging data, and cores - both physical core samples, stored in Casper, and core analysis data and reports - provide a great

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461

Sensitivity analysis for joint inversion of ground-penetrating radar and thermal-hydrological data from a large-scale underground heater test  

E-Print Network (OSTI)

investigations at Yucca Mountain, Nevada, the potentialin the Unsaturated Zone, Yucca Mountain, Nevada, U.S. Geol.with the Drift Scale Test at Yucca Mountain, Nevada, J. of

Kowalsky, M.B.; Birkholzer, J.; Peterson, J.; Finsterle, S.; Mukhopadhya y, S.; Tsang, Y.T.

2008-01-01T23:59:59.000Z

462

An analysis of the reliability and validity of the Naglieri Nonverbal Ability Test (NNAT) with English language Learner (ELL) Mexican American children  

E-Print Network (OSTI)

The purpose of this study was to investigate the reliability and validity of the results of the Naglieri Nonverbal Ability Test (NNAT; Naglieri, 1997a) with a sample of English Language Learner (ELL) Mexican American children and to compare...

Villarreal, Carlo Arlan

2006-08-16T23:59:59.000Z

463