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Note: This page contains sample records for the topic "upper air measurements" 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.


1

Upper-ocean variability in Drake Passage and the Weddell Sea : Measuring the oceanic response to air-sea and ice-ocean interactions  

E-Print Network [OSTI]

remote-sensing observations of SST to an upper-ocean heatremote-sensing and reanalysis products provide estimates of the net heat

Stephenson, Gordon Ronald

2012-01-01T23:59:59.000Z

2

Radar Measurement of the Upper Atmosphere  

Science Journals Connector (OSTI)

...of the Upper Atmosphere James C. G...two decades large radars have...of the upper atmosphere. These radars...ionospheric plasma, all as functions...ionospheric plasma by detection...is wasted. Atmospheric radar scientists...305 m and an area of 73,000...frequency of 430 MHz. The radar...

James C. G. Walker

1979-10-12T23:59:59.000Z

3

Influence Of Upper Air Conditions On The Patagonia Icefields L. A. Rasmussen, H. Conway, C. F. Raymond  

E-Print Network [OSTI]

Influence Of Upper Air Conditions On The Patagonia Icefields L. A. Rasmussen, H. Conway, C. F, Second Fig ABSTRACT. Upper-air conditions archived in the NCEP-NCAR Reanalysis have been used cannot be determined, so the investigation is limited to examining relative changes in those upper air

Rasmussen, L.A.

4

AT 560 (2 Credits) Air Pollution Measurement  

E-Print Network [OSTI]

AT 560 (2 Credits) Air Pollution Measurement Spring 2013 Instructor: Jeff Collett, 491 Resolution and Student Conduct Services." #12;ATS 560 - Air Pollution Measurement Spring 2013 Schedule Useful. 11, 13 Atmospheric Aero- sols/Sampling Lab #2: Aerosol and trace gas sampling; 5 Feb. 18, 20 Intro

5

Evaluation of Polar WRF forecasts on the Arctic System Reanalysis domain: Surface and upper air analysis  

E-Print Network [OSTI]

analyses of regional mod- eling with Polar WRF have been performed with results compared to selected localEvaluation of Polar WRF forecasts on the Arctic System Reanalysis domain: Surface and upper air.1.1 of the Weather Research and Forecasting model (WRF), a highresolution regional scale model, is used to simulate

Howat, Ian M.

6

Measurement of particulate densities in air  

Science Journals Connector (OSTI)

Clean air is one of the most important issues that govern the health of all live forms. However presently there are not many quick and simple methods for measuring impurities like particulates in air. These impurities have an enormous diversity in their physical and chemical structure. They may be unburned carbon particles from a diesel engine exhaust and chimney pollen grains in the spring air or asbestos in a factory. This paper shows that changes in the composition of the air cause a change in the speed of sound. Therefore by measuring the change in the speed of sound it is possible to monitor the density of particulates in the air. Preliminary tests are conducted on various smoke–air mixtures. The results demonstrate that this methodology is very sensitive to any changes in the composition of the air. Its implementation is very simple and efficient and costs much less than the conventional method currently used in the auto industry. This technique will be used to calculate the mass density of the particulates resulting from a diesel engine and results thus obtained will be compared with those calculated using other methods.

2001-01-01T23:59:59.000Z

7

REVIEW OF AIR FLOW MEASUREMENT TECHNIQUES  

Office of Scientific and Technical Information (OSTI)

9747 9747 Review of Airflow Measurement Techniques Jennifer McWilliams Energy Performance of Buildings Group Environmental Energy Technologies Division Lawrence Berkeley National Laboratory Berkeley, CA 94720 December 1, 2002 Abstract Airflow measurement techniques are necessary to determine the most basic of indoor air quality questions: "Is there enough fresh air to provide a healthy environment for the occupants of the building?" This paper outlines airflow measurement techniques, but it does not make recommendations for techniques that should be used. The airflows that will be discussed are those within a room or zone, those between rooms or zones, such as through doorways (open or closed) or passive vents, those between the building and

8

Knowledge Partnership for Measuring Air Pollution and Greenhouse...  

Open Energy Info (EERE)

Measuring Air Pollution and Greenhouse Gas Emissions in Asia Jump to: navigation, search Name Knowledge Partnership for Measuring Air Pollution and Greenhouse Gas Emissions in Asia...

9

Model sensitivity and uncertainty analysis using roadside air quality measurements  

E-Print Network [OSTI]

Model sensitivity and uncertainty analysis using roadside air quality measurements Sotiris, a probabilistic methodology for assessing urban air quality was proposed. Keywords: Air pollution; Model 535265 1. Introduction Mathematical modelling has been widely used for assessing ambient air quality

Paris-Sud XI, Université de

10

Measuring air pollution using a mobile, bicycle-based platform  

E-Print Network [OSTI]

Measuring air pollution using a mobile, bicycle-based platform Steve Hankey University-walkability Physical activity Air pollution 2 #12;Approach: Mobile, bicycle-based sampling Air pollution measurements

Minnesota, University of

11

Hazard Assessment of Chemical Air Contaminants Measured in Residences  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Hazard Assessment of Chemical Air Contaminants Measured in Residences Hazard Assessment of Chemical Air Contaminants Measured in Residences Title Hazard Assessment of Chemical Air Contaminants Measured in Residences Publication Type Journal Article LBNL Report Number LBNL-3650E Year of Publication 2011 Authors Logue, Jennifer M., Thomas E. McKone, Max H. Sherman, and Brett C. Singer Journal Indoor Air Volume 21 Start Page 92 Issue 2 Pagination 92-109 Date Published 04/2011 Keywords resave Abstract Identifying air pollutants that pose a potential hazard indoors can facilitate exposure mitigation. In this study, we compiled summary results from 77 published studies reporting measurements of chemical pollutants were representative of concentrations in residences in the United States. These data were used to calculate representative mid-range and upper bound concentrations relevant to chronic exposures for 267 pollutants and representative peak concentrations relevant to acute exposures for 5 activity-associated pollutants. Representative concentrations are compared to available chronic and acute health standards for 97 pollutants. Fifteen pollutants are identified as contaminants of concern for chronic health effects in a large fraction of homes. Nine pollutants are identified as potential chronic health hazards in a substantial minority of homes and an additional nine are identified as potential hazards in a very small percentage of homes. Nine pollutants are identified as priority hazards based on robustness of reported concentration data and fraction of residences that appear to be impacted: acetaldehyde; acrolein; benzene; 1,3- butadiene; 1,4-dichlorobenzene; formaldehyde; naphthalene; nitrogen dioxide; and PM2.5. Activity-based emissions are shown to pose potential acute health hazards for PM2.5, formaldehyde, CO, chloroform, and NO2.

12

Measure Guideline: Guide to Attic Air Sealing  

SciTech Connect (OSTI)

The Guide to Attic Air Sealing was completed in 2010 and although not in the standard Measure Guideline format, is intended to be a Measure Guideline on Attic Air Sealing. The guide was reviewed during two industry stakeholders meetings held on December 18th, 2009 and January 15th, 2010, and modified based on the comments received. Please do not make comments on the Building America format of this document. The purpose of the Guide to Attic Air Sealing is to provide information and recommendations for the preparation work necessary prior to adding attic insulation. Even though the purpose of this guide is to save energy - health, safety and durability should not be compromised by energy efficiency. Accordingly, combustion safety and ventilation for indoor air quality are addressed first. Durability and attic ventilation then follow. Finally, to maximize energy savings, air sealing is completed prior to insulating. The guide is intended for home remodelers, builders, insulation contractors, mechanical contractors, general contractors who have previously done remodeling and homeowners as a guide to the work that needs to be done.

Lstiburek, J.

2014-09-01T23:59:59.000Z

13

inAir: Sharing Indoor Air Quality Measurements and Visualizations  

E-Print Network [OSTI]

evidence has indicated that indoor air pollution within homes and other buildings can be worse than the outdoor air pollution in even the largest and most industrialized cities. For example, the California Air Resources Board estimates that indoor air pollutant levels are 25-62% greater than outside levels [4

Mankoff, Jennifer

14

Quality-Controlled Upper-Air Sounding Dataset for DYNAMO/CINDY/AMIE: Development and Corrections  

SciTech Connect (OSTI)

The upper-air sounding network for DYNAMO (Dynamics of the Madden-Julian Oscillation or MJO) has provided an unprecedented set of observations for studying the MJO over the Indian Ocean (IO) where coupling of this oscillation with deep convection first occurs. With 72 sounding sites and dropsonde data from 13 aircraft mission, the sonde network covers the tropics from Eastern African to the West Pacific. In total nearly 26,000 sondes were collected from this network during the experiment’s 6-month extended observing period (from October 2011 to March 2012). Slightly more than half of the sondes, collected from 33 sites, are at high vertical resolution. Rigorous post-field phase processing of the sonde data included several levels of quality checks and a variety of corrections which address a number of issues (e.g., daytime dry bias, baseline surface data errors, ship deck-heating effects, artificial dry spikes in slow ascent sondes). Because of the importance of an accurate description of the moisture field in meeting the scientific goals of the experiments, particular attention is given to humidity correction and its validation. The humidity corrections, though small relative to some previous field campaigns, produced high fidelity moisture analyses in which sonde precipitable water compared well with independent estimates. An assessment of model operational analyses moisture using corrected sonde data shows an overall good agreement with the exception at upper-levels where model moisture and clouds are more abundant than the sounding data would indicate.

Ciesielski, Paul; Yu, Hungjui; Johnson, Richard; Yoneyama, Kunio; Katsumata, Masaki; Long, Charles N.; Wang, Junhong; Loehrer, Scot; Young, Kate; Williams, S.; Brown, William; Braun, John; Van Hove, Terese

2014-04-01T23:59:59.000Z

15

PFT Air Infiltration Measurement Technique | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

PFT Air Infiltration Measurement Technique PFT Air Infiltration Measurement Technique PFT Air Infiltration Measurement Technique April 2, 2012 - 3:11pm Addthis The Brookhaven National Laboratory developed the PFT (PerFluorocarbon tracer gas) technique to measure changes over time when determining a building's air-infiltration rate. The Brookhaven National Laboratory developed the PFT (PerFluorocarbon tracer gas) technique to measure changes over time when determining a building's air-infiltration rate. What does this mean for me? You can save 5%-30% on your energy bill by making upgrades following a home energy assessment. A professional energy auditor may use the PFT air infiltration measurement technique to find out where your home has air leaks, though a blower door test is more commonly used.

16

Requirements for Determining Refrigerant Charge Residential Air Conditioning Measures  

E-Print Network [OSTI]

Requirements for Determining Refrigerant Charge Residential Air Conditioning Measures Improved Refrigerant Charge Purpose Component packages require in some climate zones that split system air refrigerant charge. For the performance method, the proposed design is modeled with less efficiency

17

Calibration of NASA Turbulent Air Motion Measurement System  

Science Journals Connector (OSTI)

A turbulent air motion measurement system (TAMMS) was integrated onboard the Lockheed 188 Electra airplane (designated NASA 429) based at the Wallops Flight Facility in support of the NASA role in global tropospheric research. The system provides air ...

Barrick John D. W.; Ritter John A.; Watson Catherine E.; Wynkoop Mark W.; Quinn John K.

1996-12-01T23:59:59.000Z

18

Positive ion composition measurements and acetonitrile in the upper stratosphere  

Science Journals Connector (OSTI)

... a mass spectrometer that was flown on 23 September 1982 on a 1,000,000m3 stratospheric balloon from the CNES launching base of Aire-sur-1'Adour (44 N). Also ...

E. Arijs; D. Nevejans; J. Ingels

1983-05-26T23:59:59.000Z

19

Detecting discontinuities in time series of upper air data: Demonstration of an adaptive filter technique  

SciTech Connect (OSTI)

The issue of global climate change due to increased anthropogenic emissions of greenhouse gases in the atmosphere has gained considerable attention and importance. Climate change studies require the interpretation of weather data collected in numerous locations and/or over the span of several decades. Unfortunately, these data contain biases caused by changes in instruments and data acquisition procedures. It is essential that biases are identified and/or removed before these data can be used confidently in the context of climate change research. The purpose of this paper is to illustrate the use of an adaptive moving average filter and compare it with traditional parametric methods. The advantage of the adaptive filter over traditional parametric methods is that it is less effected by seasonal patterns and trends. The filter has been applied to upper air relative humidity and temperature data. Applied to generated data, the filter has a root mean squared error accuracy of about 600 days when locating changes of 0.1 standard deviations and about 20 days for changes of 0.5 standard deviations. In some circumstances, the accuracy of location estimation can be improved through parametric techniques used in conjunction with the adaptive filter.

Zurbenko, I.; Chen, J.; Rao, S.T. [State Univ. of New York, Albany, NY (United States)] [and others

1997-11-01T23:59:59.000Z

20

Hazard Assessment of Chemical Air Contaminants Measured in Residences  

SciTech Connect (OSTI)

Identifying air pollutants that pose a potential hazard indoors can facilitate exposure mitigation. In this study, we compiled summary results from 77 published studies reporting measurements of chemical pollutants in residences in the United States and in countries with similar lifestyles. These data were used to calculate representative mid-range and upper bound concentrations relevant to chronic exposures for 267 pollutants and representative peak concentrations relevant to acute exposures for 5 activity-associated pollutants. Representative concentrations are compared to available chronic and acute health standards for 97 pollutants. Fifteen pollutants appear to exceed chronic health standards in a large fraction of homes. Nine other pollutants are identified as potential chronic health hazards in a substantial minority of homes and an additional nine are identified as potential hazards in a very small percentage of homes. Nine pollutants are identified as priority hazards based on the robustness of measured concentration data and the fraction of residences that appear to be impacted: acetaldehyde; acrolein; benzene; 1,3-butadiene; 1,4-dichlorobenzene; formaldehyde; naphthalene; nitrogen dioxide; and PM{sub 2.5}. Activity-based emissions are shown to pose potential acute health hazards for PM{sub 2.5}, formaldehyde, CO, chloroform, and NO{sub 2}.

Logue, J.M.; McKone, T.E.; Sherman, M. H.; Singer, B.C.

2010-05-10T23:59:59.000Z

Note: This page contains sample records for the topic "upper air measurements" 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

Review of air flow measurement techniques  

E-Print Network [OSTI]

static pressure distributions were measured in the duct and HVACstatic pressure distributions were measured in the duct and HVACstatic pressure distributions were measured in the duct and HVAC

McWilliams, Jennifer

2002-01-01T23:59:59.000Z

22

Measured Impacts of Air Conditioner Condenser Shading  

E-Print Network [OSTI]

reaching the expansion valve. In theory, the efficiency of vapor compression air conditioning can be improved through two primary mechanisms associated with condenser shading: Direct shading. Incident solar radiation can pose approximately a 1,000 w...]: IEYPERAlURL COUPARlSOn A/C SHADING DP. 1 (Some): SOUR RADlAllON COUPARISON I=AYEI[Nl KYP orq=82.1 , mu=87.(22 Z=CONDEHSIR ARU AIR lEYP orq=83.8 , mox=02.858 TIME OF DAY, (hr) 9 12 15 TIME OF DAY, (hr) Figure 3. Sample daily 15-minute data for June 21...

Parker, D. S.; Barkaszi, S. F.; Sonne, J. K.

1996-01-01T23:59:59.000Z

23

Relationship between Warm Air Mass Transport into the Upper Polar Atmosphere and Cold Air Outbreaks in Winter  

Science Journals Connector (OSTI)

This study investigates dominant patterns of daily surface air temperature anomalies in winter (November to February) and their relationship with the meridional mass circulation variability using the daily ECMWF Interim reanalysis in 1979–2011. ...

Yueyue Yu; Ming Cai; Rongcai Ren; Huug M. van den Dool

24

Clinical Reality of Measuring Upper-Limb Ability in Neurologic Conditions: A Systematic Review  

Science Journals Connector (OSTI)

Connell LA, Tyson SF. Clinical reality of measuring upper-limb ability in neurologic conditions: a systematic review. Objective To review the psychometric properties and clinical utility of upper-limb measurement tools in people with neurologic conditions to provide recommendations for practice. Data Sources MEDLINE, CINAHL, EMBASE, PEDro, and AMED. Study Selection Independent reviewers searched, selected, and extracted data from articles that assessed reliability, validity, ability to detect change, and clinical utility of measures of the upper limb in adult neurologic conditions. Data Extraction Measures with good psychometrics and 8 or higher (out of 10) clinical utility scores were recommended. Data Synthesis The searches identified 31 measures of the upper limb. However, only 2 measures fulfilled all of the psychometric and clinical utility criteria; the Box and Block Test and the Action Research Arm Test. Conclusions The Box and Block and the Action Research Arm Tests produce robust data and are feasible for use in clinical practice. Future development of new or existing measures should ensure the construct and content validity of the measure is clearly identified, standardized guidelines are easily available, and ensure that it is individualized and contemporary. Attention to measures of upper-limb activity for people who are unable to grip objects is also needed.

Louise A. Connell; Sarah F. Tyson

2012-01-01T23:59:59.000Z

25

Analysis of Air Leakage Measurements from Residential  

E-Print Network [OSTI]

that are rated for energy efficiency have normalized leakage values that are, on average, 30% lower than non% of the total energy consumption by US households, and air leakage is estimated to account for 30 to 50 homes. This work enables software tools such as Home Energy Saver to more reliably predict the energy

26

Measure Guideline: Air Sealing Attics in Multifamily Buildings  

SciTech Connect (OSTI)

This Building America Measure Guideline is intended for owners, builders, contractors, homeowners, and other stakeholders in the multifamily building industry, and focuses on challenges found in existing buildings for a variety of housing types. It explains why air sealing is desirable, explores related health and safety issues, and identifies common air leakage points in multifamily building attics. In addition, it also gives an overview of materials and techniques typically used to perform air sealing work.

Otis, C.; Maxwell, S.

2012-06-01T23:59:59.000Z

27

Measuring Bicyclists' Uptake of Traffic-Related Air Pollution  

E-Print Network [OSTI]

doses 4.Health effects 4Urban Bicyclists' Pollution Uptake #12;Bicyclists' Exposure to Air Pollution 5Measuring Bicyclists' Uptake of Traffic-Related Air Pollution Alex Bigazzi PSU Transportation Uptake 1 #12;Bicycle & Health Promotion Public Health Exercise CrashesPollution Emissions Exposure/ Dose

Bertini, Robert L.

28

Automatic Continuous Commissioning of Measurement Instruments in Air Handling Units  

E-Print Network [OSTI]

This paper presents a robust strategy based on a condition-based adaptive statistical method for automatic commissioning of measurement instruments typically employed in air-handling units (AHU). The multivariate statistic method, principal...

Xiao, F.; Wang, S.

2006-01-01T23:59:59.000Z

29

Knowledge Partnership for Measuring Air Pollution and Greenhouse Gas  

Open Energy Info (EERE)

Measuring Air Pollution and Greenhouse Gas Measuring Air Pollution and Greenhouse Gas Emissions in Asia Jump to: navigation, search Name Knowledge Partnership for Measuring Air Pollution and Greenhouse Gas Emissions in Asia Agency/Company /Organization Clean Air Asia Partner World Bank Development Grant Facility (DGF), Asian Development Bank (ADB), the German Development Cooperation (GiZ), Energy Foundation, Institute for Global Environmental Strategies (IGES), Institute for Transport Policy Studies (ITPS), Institute for Transportation and Development Policy (ITDP), Transport Research Laboratory (TRL), United Nations Centre for Regional Development (UNCRD), Veolia Energy Sector Climate, Energy, Land Focus Area Greenhouse Gas, Transportation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, Low emission development planning, -LEDS, -NAMA, -TNA, Pathways analysis, Policies/deployment programs

30

Analysis of Air Leakage Measurements of US Houses  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Air Leakage Measurements of US Houses Air Leakage Measurements of US Houses Title Analysis of Air Leakage Measurements of US Houses Publication Type Journal Article Year of Publication 2013 Authors Chan, Wanyu R., Jeffrey Joh, and Max H. Sherman Journal Energy and Buildings Start Page 616 Pagination 616-625 Date Published 08/2013 Abstract Building envelope airtightness is important for residential energy use, occupant health and comfort. Weanalyzed the air leakage measurements of 134,000 single-family detached homes in US, using normalizedleakage (NL) as the metric. Weatherization assistance programs (WAPs) and residential energy efficiencyprograms contributed most of the data. We performed regression analyses to examine the relationshipbetween NL and various house characteristics. Explanatory variables that are correlated with NL includeyear built, climate zone, floor area, house height, and whether homes participated in WAPs or if theyare energy efficiency rated homes. Foundation type and whether ducts are located outside or inside theconditioned space are also found to be useful parameters for predicting NL. We developed a regressionmodel that explains approximately 68% of the observed variability across US homes. Of these variablesconsidered, year built and climate zone are the two that have the largest influence on NL. The regressionmodel can be used to predict air leakage values for individual homes, and distributions for groups ofhomes, based on their characteristics. Using RECS 2009 data, the regression model predicts 90% of UShouses have NL between 0.22 and 1.95, with a median of 0.67.

31

Energy Dependence of Air Fluorescence Yield measured by AIRFLY  

E-Print Network [OSTI]

In the fluorescence detection of ultra high energy (> 10**18 eV) cosmic rays, the number of emitted fluorescence photons is assumed to be proportional to the energy deposited in air by shower particles. We have performed measurements of the fluorescence yield in atmospheric gases excited by electrons over energies ranging from keV to hundreds of MeV in several accelerators. We found that within the measured energy ranges the proportionality holds at the level of few %.

M. Ave

2007-11-28T23:59:59.000Z

32

Front surface thermal property measurements of air plasma spray coatings  

SciTech Connect (OSTI)

A front-surface measurement for determining the thermal properties of thermal barrier coatings has been applied to air plasma spray coatings. The measurement is used to determine all independent thermal properties of the coating simultaneously. Furthermore, with minimal requirements placed on the sample and zero sample preparation, measurements can be made under previously impossible conditions, such as on serviceable engine parts. Previous application of this technique was limited to relatively thin coatings, where a one-dimensional heat transfer model is applied. In this paper, the influence of heat spreading on the measurement of thicker coatings is investigated with the development of a two-dimensional heat transfer model.

Bennett, Ted; Kakuda, Tyler [University of California, Santa Barbara, California 93106-5070 (United States); Kulkarni, Anand [Siemens Energy, Orlando, Florida 32826-2399 (United States)

2009-04-15T23:59:59.000Z

33

Measurement Methods to Determine Air Leakage Between Adjacent Zones  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Measurement Methods to Determine Air Leakage Between Adjacent Zones Measurement Methods to Determine Air Leakage Between Adjacent Zones Title Measurement Methods to Determine Air Leakage Between Adjacent Zones Publication Type Report LBNL Report Number LBNL-5887E Year of Publication 2012 Authors Hult, Erin L., Darryl J. Dickerhoff, and Phillip N. Price Date Published 09/2012 Keywords infiltration, leakage, residential ventilation Abstract Air leakage between adjacent zones of a building can lead to indoor air quality and energy efficiency concerns, however there is no existing standard for measuring inter-zonal leakage.In this study, synthesized data and field measurements are analyzed in order to explore the uncertainty associated with different methods for collecting and analyzing fan pressurization measurements to calculate inter- zone leakage. The best of the measurement and analysis methods was a method that uses two blower doors simultaneously based on the methods of Herrlin and Modera (1988) to determine the inter-zone leakage to within 16% of the inter-zone leakage flow at 4Pa, over the range of expected conditions for a house and attached garage. Methods were also identified that use a single blower door to determine the inter-zone leakage to within 30% of its value. The test configuration selected can have a large impact on the uncertainty of the results and there are testing configurations and methods that should definitely be avoided. The most rigorous calculation method identified assumes a fixed value for the pressure exponent for the interface between the two zones (rather than determining the interface pressure exponent from the measured data) and then uses an optimization routine to fit a single set of air leakage coefficients and pressure exponents for each of three wall interfaces using both pressurization and depressurization data. Multiple pressure station tests have much less uncertainty than single pressure station approaches. Analyses of field data sets confirm a similar level of variation between test methods as was expected from the analysis of synthesized data sets and confirm the selection of specific test methods to reduce experimental uncertainty.

34

E-Print Network 3.0 - air showers measured Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

air shower speeds... Introduction Electromagnetic air showers are known to travel at the speed of light. However, no measurement... other assumptions are made in this ... Source:...

35

E-Print Network 3.0 - air shower measurements Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

air shower speeds... Introduction Electromagnetic air showers are known to travel at the speed of light. However, no measurement... other assumptions are made in this ... Source:...

36

INDOOR AIR QUALITY MEASUREMENTS IN ENERGY EFFICIENT BUILDINGS  

E-Print Network [OSTI]

of Engineering, Coordinating Committee of Air QualityStandards: Air Quality and Automobile Emission Control, Vol.of ilitrogen Dioxide Air Quality Standards. Paper tlo. 76-

Hollowell, C.D.

2011-01-01T23:59:59.000Z

37

Beyond Density: Measuring Neighborhood Form in New England's Upper Connecticut River Valley  

E-Print Network [OSTI]

in New England’s Upper Connecticut River Valley by Peterin New England’s Upper Connecticut River Valley by Peterof New England’s Upper Connecticut River Valley encompassing

Owens, Peter Marshall

2005-01-01T23:59:59.000Z

38

SAGE II long-term measurements of stratospheric and upper tropospheric aerosols  

SciTech Connect (OSTI)

The Stratospheric Aerosol and Gas Experiment (SAGE) II solar occultation instrument has been making measurements on stratospheric aerosols and gases continually since October 1984. Observations from the SAGE II instrument provide a valuable long-term data set for study of the aerosol in the stratosphere and aerosol and cloud in the upper troposphere. The period of observation covers the decay phase of material injected by the El Chichon volcanic eruption in 1982, the years 1988--1990 when stratospheric aerosol levels approached background levels, and the period after the eruption of Mount Pinatubo in 1991. The Mount Pinatubo eruption caused the largest perturbation in stratospheric aerosol loading in this century, with effects on stratospheric dynamics and chemistry. The SAGE II data sequence shows the global dispersion of aerosols following the Mount Pinatubo eruption, as well as the changes occurring in stratospheric aerosol mass and surface area. The downward transfer of stratospheric aerosols into the upper troposphere following the earlier eruption of El Chichon is clearly visible. Estimates have been made of the amount of volcanic material lying in the upper troposphere and the way in which this varies with latitude and season.

Wang, P.H.; Kent, G.S. [Science and Technology Corp., Hampton, VA (United States); McCormick, M.P.; Thomason, L.W. [NASA Langley Research Center, Hampton, VA (United States). Atmospheric Sciences Div.

1995-12-31T23:59:59.000Z

39

Analysis of air leakage measurements of US houses  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Buildings 66 (2013) 616-625 Buildings 66 (2013) 616-625 Contents lists available at ScienceDirect Energy and Buildings j o u r n a l h o m e p a g e : w w w . e l s e v i e r . c o m / l o c a t e / e n b u i l d Analysis of air leakage measurements of US houses Wanyu R. Chan ∗ , Jeffrey Joh, Max H. Sherman Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, One Cyclotron Road, Mailstop 90R3058, Berkeley, CA 94720, USA a r t i c l e i n f o Article history: Received 8 November 2012 Received in revised form 4 March 2013 Accepted 16 July 2013 Keywords: Blower door Fan pressurization test Normalized leakage Air infiltration Building envelope airtightness a b s t r a c t Building envelope airtightness is important for residential energy use, occupant health and comfort. We analyzed the air leakage measurements of 134,000 single-family detached homes in US, using normalized

40

INDOOR AIR QUALITY MEASUREMENTS IN ENERGY EFFICIENT BUILDINGS  

E-Print Network [OSTI]

the effect of air pollution on human health, 2) the designgenerated indoor air pollution on human health; and if borneAir Pollution Control Association, Portland, Oregon (June 27-July 1, 1976). vJorld Health

Hollowell, C.D.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "upper air measurements" 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

Computer simulations and experimental measurements of air distributions in buildings: past, present, and future  

E-Print Network [OSTI]

1 Computer simulations and experimental measurements of air distributions in buildings: past, sustainable, and safe building, it is important to know the distributions of air velocity, air temperature, and liquid droplet contaminants. (hereafter referred as air distribution) in the building. Due to rapid

Chen, Qingyan "Yan"

42

Shear viscosity measurements in the binary mixture butyl cellosolve-water near its upper and lower critical consolute points  

E-Print Network [OSTI]

has been measured for a two-component critical liquid system, butyl cellosolve-water, in the region to report measurements of the shear viscosity of critical binary mixture butyl cello- solve (2-n353 Shear viscosity measurements in the binary mixture butyl cellosolve-water near its upper

Boyer, Edmond

43

Air toxics being measured more accurately, controlled more effectively  

SciTech Connect (OSTI)

In response to the directives of the Clean Air Act Amendments, Argonne National Laboratory is developing new or improved pollutant control technologies for industries that burn fossil fuels. This research continues Argonne`s traditional support for the US DOE Flue Gas Cleanup Program. Research is underway to measure process emissions and identify new and improved control measures. Argonne`s emission control research has ranged from experiments in the basic chemistry of pollution-control systems, through laboratory-scale process development and testing to pilot-scale field tests of several technologies. Whenever appropriate, the work has emphasized integrated or combined control systems as the best approach to technologies that offer low cost and good operating characteristics.

NONE

1995-04-01T23:59:59.000Z

44

Satellite Measurement of Upper Tropospheric Water Vapor: Development and Applications and Applications for the ARM Program  

SciTech Connect (OSTI)

Upper tropospheric humidity (UTH) measurements from the 6.7 micron channel on GOES (8, 9, 12) and GMS-5 satellites were employed to develop a near real-time UTH product that is now available from the ARM External Data Center (XDC). The UTH product is available in either gridded format (2.0 x 2.0 lat-lon resolution), full-disk pixel resolution, or individual pixel resolution for both the SGP and TWP sites. This product provides the basis for the instrument intercomparison and validation activities (Section 0.2), diurnal analysis and model evaluation (0.3), and cloud lifecycle studies (0.5); and is also an important component of the research proposed here. Full details regarding the retrieval algorithm for the ARM sites can be found in Soden et al. (2004a) and references therein.

Brian J. Soden

2005-01-11T23:59:59.000Z

45

A Specific Multi-channel Photon-Counting Unit for Air-Pollution Measurement  

E-Print Network [OSTI]

A Specific Multi-channel Photon-Counting Unit for Air-Pollution Measurement Papageorgas P.1.g. confocal microscopy), air pollution optical measurements, laser sounding of the atmosphere for the in situ quantitative monitoring of up to five air pollutants simultaneously and one calibration channel

Athens, University of

46

Analysis of air leakage measurements of US houses  

Science Journals Connector (OSTI)

Abstract Building envelope airtightness is important for residential energy use, occupant health and comfort. We analyzed the air leakage measurements of 134,000 single-family detached homes in US, using normalized leakage (NL) as the metric. Weatherization assistance programs (WAPs) and residential energy efficiency programs contributed most of the data. We performed regression analyses to examine the relationship between NL and various house characteristics. Explanatory variables that are correlated with NL include year built, climate zone, floor area, house height, and whether homes participated in \\{WAPs\\} or if they are energy efficiency rated homes. Foundation type and whether ducts are located outside or inside the conditioned space are also found to be useful parameters for predicting NL. We developed a regression model that explains approximately 68% of the observed variability across US homes. Of these variables considered, year built and climate zone are the two that have the largest influence on NL. The regression model can be used to predict air leakage values for individual homes, and distributions for groups of homes, based on their characteristics. Using RECS 2009 data, the regression model predicts 90% of US houses have NL between 0.22 and 1.95, with a median of 0.67.

Wanyu R. Chan; Jeffrey Joh; Max H. Sherman

2013-01-01T23:59:59.000Z

47

Species measurements in a hypersonic, hydrogen-air, combustion wake  

SciTech Connect (OSTI)

A continuously sampling, time-of-flight mass spectrometer has been used to measure relative species concentrations in a two-dimensional, hydrogen-air combustion wake at mainstream Mach numbers exceeding 5. The experiments, in a free piston shock tunnel, yielded distributions of hydrogen, oxygen, nitrogen, water, and nitric oxide at stagnation enthalpies ranging from 5.6 MJ/kg to 12.2 MJ/kg and at a distance of approximately 100s times the thickness of the initial hydrogen jet. The amount of hydrogen mixed in stoichiometric proportions was approximately independent of the stagnation enthalpy, despite the fact that the proportion of hydrogen in the wake was increased with stagnation enthalpy. Roughly 50% of the mixed hydrogen underwent combustion at the highest enthalpy. The proportion of hydrogen reacting to water could be approximately predicted using reaction rates based on mainstream temperatures.

Skinner, K.A.; Stalker, R.J. [Univ. of Queensland, Brisbane, Queensland (Australia)] [Univ. of Queensland, Brisbane, Queensland (Australia)

1996-09-01T23:59:59.000Z

48

inAir: A Longitudinal study of Indoor Air Quality Measurements and Visualizations  

E-Print Network [OSTI]

pollutants are colorless and odorless, while many activities are inconspicuous and routine. We implemented inAir. Among those, air pollution and its effects on health have been researched extensively over past several decades [13]. In particular, the health effects of air pollution cover a wide variety of respiratory

Mankoff, Jennifer

49

Measurement-while-drilling (MWD) development for air drilling  

SciTech Connect (OSTI)

The objective of this program is to tool-harden and make commercially available an existing wireless MWD tool to reliably operate in an air, air-mist, or air-foam environment during Appalachian Basin oil and gas directional drilling operations in conjunction with downhole motors and/or (other) bottom-hole assemblies. The application of this technology is required for drilling high angle (holes) and horizontal well drilling in low-pressure, water sensitive, tight gas formations that require air, air-mist, and foam drilling fluids. The basic approach to accomplishing this objective was to modify GEC`s existing electromagnetic (e-m) ``CABLELESS``{trademark} MWD tool to improve its reliability in air drilling by increasing its tolerance to higher vibration and shock levels (hardening). Another important aim of the program is to provide for continuing availability of the resultant tool for use on DOE-sponsored, and other, air-drilling programs.

Rubin, L.A.; Harrison, W.H.

1992-06-01T23:59:59.000Z

50

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

51

THE FILTERING OF OZONE CONCENTRATION MEASUREMENTS COLLECTED IN A TURBULENT AIR STREAM USING BAYESIAN MODELS  

E-Print Network [OSTI]

; Fast response (O 3 ) gas analyzers are widely used to monitor (O 3 ) concentration in air pollution is becom­ ing increasingly important in air pollution science and boundary layer meteorology. For exampleTHE FILTERING OF OZONE CONCENTRATION MEASUREMENTS COLLECTED IN A TURBULENT AIR STREAM USING

West, Mike

52

E-Print Network 3.0 - air type measurement Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Collection: Environmental Sciences and Ecology 7 Connectable solar air collectors Solar Energy Centre Denmark Summary: .7. The measured total pressure drop across the three...

53

Upper Air Wind Measurements by Weather Radar Iwan Holleman, Henk Benschop, and Jitze van der Meulen  

E-Print Network [OSTI]

or assimilated into numerical weather prediction (NWP) models. Un- der the assumption of a linear wind field background statistics of the weather radar wind profiles against the Hirlam NWP model are at least as good of the VVP wind profiles against the Hirlam NWP model demonstrate the high quality of weather radar wind

Stoffelen, Ad

54

Direct measurements of the mean flow and eddy kinetic energy structure of the upper ocean circulation in the NE Atlantic  

E-Print Network [OSTI]

Direct measurements of the mean flow and eddy kinetic energy structure of the upper ocean, University of Bergen, Bergen, Norway Tom Rossby Graduate School of Oceanography, University of Rhode Island and variable wind-forcing, and strong and variable deep currents that lead to large uncertainties in the use

55

Measure Guideline: Air Sealing Mechanical Closets in Slab-On-Grade Homes  

SciTech Connect (OSTI)

This measure guideline describes covers two fundamental retrofit strategies for air sealing around air handling systems that are located within the living space in an enclosed closet: one in which all of the equipment is removed and being replaced, and a closet where the equipment is to remain and existing conditions are sealed. It includes the design and installation details necessary to effectively seal the air handler closet and central return system to maximize the efficiency and safety of the space conditioning system.

Dickson, B.

2012-02-01T23:59:59.000Z

56

Parallel air temperature measurements at the KNMI observatory in De Bilt (the  

E-Print Network [OSTI]

in De Bilt (the Netherlands) May 2003 - June 2005 | March 14, 2011 Page 6 of 56 #12;nal | Parallel air at the KNMI observatory in De Bilt (the Netherlands) May 2003 - June 2005 | March 14, 2011 Page 8 of 56 #12Parallel air temperature measurements at the KNMI observatory in De Bilt (the Netherlands) May 2003

Brandsma, Theo

57

Measures against the adverse impact of natural wind on air-cooled condensers in power plant  

Science Journals Connector (OSTI)

The natural wind plays disadvantageous roles in the operation of air-cooled steam condensers in power plant. It is of use to take various measures against the adverse effect of wind for the performance improvemen...

LiJun Yang; XiaoZe Du; YongPing Yang

2010-05-01T23:59:59.000Z

58

Ship-based measurement of air-sea CO 2 exchange by eddy covariance  

E-Print Network [OSTI]

al. , 2004]. 2.4.2. Ship Heave Effects on CO 2 Measurement [the effect of heave-induced pressure fluctuations on ship-effect of pressure on air density, the accelerations caused by ship

Miller, Scott D; Marandino, Christa A; Saltzman, Eric S

2010-01-01T23:59:59.000Z

59

Constraints and measurements of hadronic interactions in extensive air showers with the Pierre Auger Observatory  

E-Print Network [OSTI]

The characteristics of extensive air showers are sensitive to the details of hadronic interactions at energies and in kinematic regions beyond those tested by human-made accelerators. Uncertainties on extrapolations of the hadronic interaction models in these regions hamper the interpretation of the ultra high energy cosmic ray data in terms of primary mass composition. We report on how the Pierre Auger Observatory is able to constrain the hadronic interaction models by measuring the muon content and muon production depth of air showers and also by measuring the proton-air cross section for particle production at a center-of-mass energy per nucleon of 57 TeV.

L. Cazon

2014-05-20T23:59:59.000Z

60

Constraints and measurements of hadronic interactions in extensive air showers with the Pierre Auger Observatory  

E-Print Network [OSTI]

The characteristics of extensive air showers are sensitive to the details of hadronic interactions at energies and in kinematic regions beyond those tested by human-made accelerators. Uncertainties on extrapolations of the hadronic interaction models in these regions hamper the interpretation of the ultra high energy cosmic ray data in terms of primary mass composition. We report on how the Pierre Auger Observatory is able to constrain the hadronic interaction models by measuring the muon content and muon production depth of air showers and also by measuring the proton-air cross section for particle production at a center-of-mass energy per nucleon of 57 TeV.

,

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "upper air measurements" 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

New sensor for measurement of low air flow velocity. Phase I final report  

SciTech Connect (OSTI)

The project described here is the Phase I feasibility study of a two-phase program to integrate existing technologies to provide a system for determining air flow velocity and direction in radiation work areas. Basically, a low air flow sensor referred to as a thermocouple flow sensor has been developed. The sensor uses a thermocouple as its sensing element. The response time of the thermocouple is measured using an existing in-situ method called the Loop Current Step Response (LCSR) test. The response time results are then converted to a flow signal using a response time-versus-flow correlation. The Phase I effort has shown that a strong correlation exists between the response time of small diameter thermocouples and the ambient flow rate. As such, it has been demonstrated that thermocouple flow sensors can be used successfully to measure low air flow rates that can not be measured with conventional flow sensors. While the thermocouple flow sensor developed in this project was very successful in determining air flow velocity, determining air flow direction was beyond the scope of the Phase I project. Nevertheless, work was performed during Phase I to determine how the new flow sensor can be used to determine the direction, as well as the velocity, of ambient air movements. Basically, it is necessary to use either multiple flow sensors or move a single sensor in the monitoring area and make flow measurements at various locations sweeping the area from top to bottom and from left to right. The results can then be used with empirical or physical models, or in terms of directional vectors to estimate air flow patterns. The measurements can be made continuously or periodically to update the flow patterns as they change when people and objects are moved in the monitoring area. The potential for using multiple thermocouple flow sensors for determining air flow patterns will be examined in Phase II.

Hashemian, H.M.; Hashemian, M.; Riggsbee, E.T. [Analysis and Measurement Services Corp., Knoxville, TN (United States)

1995-08-01T23:59:59.000Z

62

Measurements of electron avalanche formation time in W-band microwave air breakdown  

SciTech Connect (OSTI)

We present measurements of formation times of electron avalanche ionization discharges induced by a focused 110 GHz millimeter-wave beam in atmospheric air. Discharges take place in a free volume of gas, with no nearby surfaces or objects. When the incident field amplitude is near the breakdown threshold for pulsed conditions, measured formation times are {approx}0.1-2 {mu}s over the pressure range 5-700 Torr. Combined with electric field breakdown threshold measurements, the formation time data shows the agreement of 110 GHz air breakdown with the similarity laws of gas discharges.

Cook, Alan M.; Hummelt, Jason S.; Shapiro, Michael A.; Temkin, Richard J. [Plasma Science and Fusion Center, Massachusetts Institute of Technology, 167 Albany St., Cambridge, Massachusetts 02139 (United States)

2011-08-15T23:59:59.000Z

63

The statistical nature of the upper continental crystalline crust derived from in situ seismic measurements  

Science Journals Connector (OSTI)

......crystalline crust. A recent large-scale geoscientific...German continental deep drilling project (KTB). It...in central Europe. A large program of seismic and...undertaken around the drilling location near Windischeschenbach...were measurements in the borehole, namely vertical seismic......

Guido Kneib

1995-09-01T23:59:59.000Z

64

Two-phase air-water stratified flow measurement using ultrasonic techniques  

SciTech Connect (OSTI)

In this paper, a time resolved ultrasound system was developed for investigating two-phase air-water stratified flow. The hardware of the system includes a pulsed wave transducer, a pulser/receiver, and a digital oscilloscope. The time domain cross correlation method is used to calculate the velocity profile along ultrasonic beam. The system is able to provide velocities with spatial resolution of around 1mm and the temporal resolution of 200?s. Experiments were carried out on single phase water flow and two-phase air-water stratified flow. For single phase water flow, the flow rates from ultrasound system were compared with those from electromagnetic flow (EM) meter, which showed good agreement. Then, the experiments were conducted on two-phase air-water stratified flow and the results were given. Compared with liquid height measurement from conductance probe, it indicated that the measured velocities were explainable.

Fan, Shiwei; Yan, Tinghu; Yeung, Hoi [School of Engineering, Cranfield University, Cranfield, Bedfordshire MK43 0AL (United Kingdom)

2014-04-11T23:59:59.000Z

65

Proceedings of ICRC 2001: 1488 c Copernicus Gesellschaft 2001 Measuring air shower speeds with the HiRes Fluorescence Detectors  

E-Print Network [OSTI]

Introduction Electromagnetic air showers are known to travel at the speed of light. However, no measurementProceedings of ICRC 2001: 1488 c Copernicus Gesellschaft 2001 ICRC 2001 Measuring air shower speeds the shower is traveling at c. Since speed is not a constraint, it can be measured. The method can be tested

66

Measuring Short-term Air Conditioner Demand Reductions for Operations and  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Measuring Short-term Air Conditioner Demand Reductions for Operations and Measuring Short-term Air Conditioner Demand Reductions for Operations and Settlement Title Measuring Short-term Air Conditioner Demand Reductions for Operations and Settlement Publication Type Report LBNL Report Number LBNL-5330E Year of Publication 2012 Authors Bode, Josh, Michael J. Sullivan, and Joseph H. Eto Pagination 120 Date Published 01/2012 Publisher LBNL City Berkeley Keywords consortium for electric reliability technology solutions (certs), electricity markets and policy group, energy analysis and environmental impacts department Abstract Several recent demonstrations and pilots have shown that air conditioner (AC) electric loads can be controlled during the summer cooling season to provide ancillary services and improve the stability and reliability of the electricity grid. A key issue for integration of air conditioner load control into grid operations is how to accurately measure shorter-term (e.g., ten's of minutes to a couple of hours) demand reductions from AC load curtailments for operations and settlement. This report presents a framework for assessing the accuracy of shorter-term AC load control demand reduction measurements. It also compares the accuracy of various alternatives for measuring AC reductions - including methods that rely on regression analysis, load matching and control groups - using feeder data, household data and AC end-use data. A practical approach is recommended for settlement that relies on set of tables, updated annually, with pre-calculated load reduction estimates. The tables allow users to look up the demand reduction per device based on the daily maximum temperature, geographic region and hour of day and simplify the settlement process.

67

Measure Guideline: Combustion Safety for Natural Draft Appliances Using Indoor Air  

SciTech Connect (OSTI)

This measure guideline covers how to assess and carry out the combustion safety procedures for appliances and heating equipment that uses indoor air for combustion in low-rise residential buildings. Only appliances installed in the living space, or in an area freely communicating with the living space, vented alone or in tandem with another appliance are considered here. A separate measure guideline addresses combustion appliances located either within the living space in enclosed closets or side rooms or outside the living space in an adjacent area like an attic or garage that use outdoor air for combustion. This document is for inspectors, auditors, and technicians working in homes where energy upgrades are being conducted whether or not air infiltration control is included in the package of measures being applied. In the indoor combustion air case, guidelines summarized here are based on language provided in several of the codes to establish minimum requirements for the space using simplified prescriptive measures. In addition, building performance testing procedures are provided by testing agencies. The codes in combination with the test procedures offer comprehensive combustion safety coverage to address safety concerns, allowing inexperienced residential energy retrofit inspectors to effectively address combustion safety issues and allow energy retrofits to proceed.

Brand, L.

2014-04-01T23:59:59.000Z

68

Experimental measurements of multiphoton enhanced air breakdown by a subthreshold intensity excimer laser  

E-Print Network [OSTI]

laser Jesse Way,a Jason Hummelt, and John Scharer Department of Electrical and Computer Engineering measurements of laser induced breakdown plasma in atmospheric air by subthreshold intensity 5.5 109 W/cm2 193 nm laser radiation. Using molecular spectroscopy and two-wavelength interferometry, it is shown

Scharer, John E.

69

Shipboard Measurements and Estimations of AirSea Fluxes in the Western Tropical Pacific Ocean  

E-Print Network [OSTI]

Ship­board Measurements and Estimations of Air­Sea Fluxes in the Western Tropical Pacific Ocean E dur­ ing the Tropical Ocean Global Atmosphere (TOGA) Coupled Ocean and Atmospheric Response of the surface­layer turbulence properties are compared with those from previous land and ocean results. Momentum

California at Irvine, University of

70

De Bilt, 2011 | Scientific report; WR 2011-01 Parallel air temperature measurements  

E-Print Network [OSTI]

at the KNMI observatory in De Bilt (the Netherlands) May 2003 - June 2005 | March 14, 2011 Page 6 of 56 #12 observatory in De Bilt (the Netherlands) May 2003 - June 2005 Theo Brandsma #12;#12;Parallel air temperature measurements at the KNMI observatory in De Bilt (the Netherlands) May 2003 - June 2005 Version 1.0 Date March

Haak, Hein

71

Measurements of air contaminants during the Cerro Grande fire at Los Alamos National Laboratory  

SciTech Connect (OSTI)

Ambient air sampling for radioactive air contaminants was continued throughout the Cerro Grande fire that burned part of Los Alamos National Laboratory. During the fire, samples were collected more frequently than normal because buildup of smoke particles on the filters was decreasing the air flow. Overall, actual sampling time was 96% of the total possible sampling time for the May 2000 samples. To evaluate potential human exposure to air contaminants, the samples were analyzed as soon as possible and for additional specific radionuclides. Analyses showed that the smoke from the fire included resuspended radon decay products that had been accumulating for many years on the vegetation and the forest floor that burned. Concentrations of plutonium, americium, and depleted uranium were also measurable, but at locations and concentrations comparable to non-fire periods. A continuous particulate matter sampler measured concentrations that exceeded the National Ambient Air Quality Standard for PM-10 (particles less than 10 micrometers in diameter). These high concentrations were caused by smoke from the fire when it was close to the sampler.

Eberhart, Craig

2010-08-01T23:59:59.000Z

72

Compressed Air  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

BPA Utility Reimbursement Programs for Compressed Air Projects Customer Proposal Template Measurement & Verification Plan for Compressed Air CA 2006-15 A template for utilities to...

73

Spectroscopic temperature measurements of air breakdown plasma using a 110 GHz megawatt gyrotron beam  

SciTech Connect (OSTI)

Temperature measurements are presented of a non-equilibrium air breakdown plasma using optical emission spectroscopy. A plasma is created with a focused 110 GHz 3 {mu}s pulse gyrotron beam in air that produces power fluxes exceeding 1 MW/cm{sup 2}. Rotational and vibrational temperatures are spectroscopically measured over a pressure range of 1-100 Torr as the gyrotron power is varied above threshold. The temperature dependence on microwave field as well as pressure is examined. Rotational temperature measurements of the plasma reveal gas temperatures in the range of 300-500 K and vibrational temperatures in the range of 4200-6200 K. The vibrational and rotational temperatures increase slowly with increasing applied microwave field over the range of microwave fields investigated.

Hummelt, J. S.; Shapiro, M. A.; Temkin, R. J. [Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

2012-12-15T23:59:59.000Z

74

Measuring the Muon Content of Air Showers with IceTop  

E-Print Network [OSTI]

IceTop, the surface component of the IceCube detector, has been used to measure the energy spectrum of cosmic ray primaries in the range between 1.58 PeV and 1.26 EeV. It can also be used to study the low energy muons in air showers by looking at large distances (> 300m) from the shower axis. We will show the muon lateral distribution function at large lateral distances as measured with IceTop and discuss the implications of this measurement. We also discuss the prospects for low energy muon studies with IceTop.

Gonzalez, Javier G

2015-01-01T23:59:59.000Z

75

Ten Years of Measurements of Tropical Upper-Tropospheric Water Vapor by MOZAIC. Part I: Climatology, Variability, Transport, and Relation to  

E-Print Network [OSTI]

the International Satellite Cloud Climatology Project (ISCCP). 1. Introduction Water vapor is the key atmosphericTen Years of Measurements of Tropical Upper-Tropospheric Water Vapor by MOZAIC. Part I: Climatology, Variability, Transport, and Relation to Deep Convection ZHENGZHAO LUO, DIETER KLEY,* AND RICHARD H. JOHNSON

Lombardi, John R.

76

Upper Limit on a Stochastic Background of Gravitational Waves from Seismic Measurements in the Range 0.05 Hz to 1 Hz  

E-Print Network [OSTI]

In this paper, we present an upper limit of $\\Omega_{\\rm GW}<1.2\\times 10^{8}$ on an isotropic stochastic gravitational-wave (GW) background integrated over a year in the frequency range 0.05 Hz - 1 Hz, which improves current upper limits from high-precision laboratory experiments by about 9 orders of magnitude. The limit is obtained using the response of Earth itself to GWs via a free-surface effect described more than 40 years ago by F.J. Dyson. The response was measured by a global network of broadband seismometers selected to maximize the sensitivity.

Michael Coughlin; Jan Harms

2014-01-13T23:59:59.000Z

77

Measure Guideline: Wall Air Sealing and Insulation Methods in Existing Homes; An Overview of Opportunity and Process  

SciTech Connect (OSTI)

This guide provides renovators and retrofit contractors an overview of considerations when including wall air sealing and insulation in an energy retrofit project. It also outlines the potential project risks, various materials for insulating, possible field inspections needed, installation procedures, as well as the benefits and drawbacks. The purpose of this document is to provide the outline of the overview and process of insulating and air sealing walls so that home retrofit professionals can identify approaches to air sealing and insulation measures.

Roberts, S.; Stephenson, R.

2012-09-01T23:59:59.000Z

78

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; Michaël Cohen; Pascal Stabat; Dominique Marchio

2015-01-01T23:59:59.000Z

79

ARMlUnmanned Air VehiclelSatelites The Atmospheric Radiation Measurement  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ARMlUnmanned Air VehiclelSatelites ARMlUnmanned Air VehiclelSatelites The Atmospheric Radiation Measurement Unmanned Aerospace Vehicle Program: An Overview P. A. Crowley Environmental Sciences Division U.S. Department of Energy Washington, D.C. J. Vitko, Jr. Sandia National Laboratories Livermore, CA 94550 Introduction for leased UA V operation over the next year. Examples include, but are not limited to, the existing Gnat 750-45, with its 7-8 km ceiling, as well as the planned FY93 demonstration of two 20 km capable UA Vs-the Perseus- B and the Raptor. Thus the funding of some initial flights and the availability of leased UAVs will enable us to start up the ARM-UAV program. Additional funding will be required to continue this program. Interim Science Team This paper and the one that follows describe the start-up

80

Pulsed quantum cascade laser instrument with compact design for rapid, high sensitivity measurements of trace gases in air  

Science Journals Connector (OSTI)

We have developed a compact instrument for sensitive, rapid and continuous measurement of trace gases in air, with results presented here for methane (CH4), nitric oxide (NO), nitrous oxide (N2O) and ammonia (NH3

J.B. McManus; J.H. Shorter; D.D. Nelson; M.S. Zahniser; D.E. Glenn…

2008-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "upper air measurements" 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

Upper-mantle anisotropy beneath the Cameroon Volcanic Line and Congo Craton from shear wave splitting measurements  

Science Journals Connector (OSTI)

......material from a large rising thermal anomaly beneath southern Ethiopia...Central Africa from Angola to Sudan. In the Archaean, the Gabon-Cameroon...attributed to convection driven by thermal gradients between the asthenosphere...upper-mantle LPO due to the thermal gradient at the edge of the......

Franklin W. Koch; Douglas A. Wiens; Andrew A. Nyblade; Patrick J. Shore; Rigobert Tibi; B. Ateba; C.T. Tabod; J. M. Nnange

2012-07-01T23:59:59.000Z

82

Parallel air temperature measurements at the KNMI-terrain in De Bilt (the Netherlands) May 2003 April 2005  

E-Print Network [OSTI]

measurements at the KNMI-terrain in De Bilt (the Netherlands) Page 2 #12;Interim report Page 3 Table measurements at the KNMI-terrain in De Bilt (the Netherlands) Page 4 Foreword From May 2003 through April 2005Parallel air temperature measurements at the KNMI-terrain in De Bilt (the Netherlands) May 2003

Stoffelen, Ad

83

Measuring perceived air quality and intensity by a Sensor System, the European Project SysPAQ  

E-Print Network [OSTI]

as it is perceived by humans to be used as a control device for indoor air quality. KEYWORDS Perceived air quality;because of the unmatched sensitivity to many odorous indoor air pollutants. One of the reasons indoor air pollutants that trigger human sensory response. The SysPAQ project builds upon current

Paris-Sud XI, Université de

84

J. Air & Waste Manage. Assoc., vol 58, 2008, p. 45-54 On-board emission measurement of high loaded light duty vehicles in Algeria  

E-Print Network [OSTI]

; Nejjari et al., 2003, Atek et al., 2004). As a result, many stations of air pollution measurement and Boukadoum, 2005). Vehicle pollutant emissions constitute not only a problem of air quality in big citiesJ. Air & Waste Manage. Assoc., vol 58, 2008, p. 45-54 On-board emission measurement of high loaded

Boyer, Edmond

85

Experimental measurements of multiphoton enhanced air breakdown by a subthreshold intensity excimer laser  

SciTech Connect (OSTI)

This work presents density, spectroscopic temperature, and shockwave measurements of laser induced breakdown plasma in atmospheric air by subthreshold intensity (5.5x10{sup 9} W/cm{sup 2}) 193 nm laser radiation. Using molecular spectroscopy and two-wavelength interferometry, it is shown that substantial ionization (>10{sup 16} cm{sup -3}) occurs that is not predicted by collisional cascade (CC) breakdown theory. While the focused laser irradiance is three orders of magnitude below the theoretical collisional breakdown threshold, the substantial photon energy at 193 nm (6.42 eV/photon) compared with the ionization potential of air (15.6 eV) significantly increases the probability of multiphoton ionization effects. By spectroscopically monitoring the intensity of the N{sub 2}{sup +} first negative system (B {sup 2}SIGMA{sub u}{sup +}-X {sup 2}SIGMA{sub g}{sup +}) vibrational bandhead (v{sup '}=0,v{sup ''}=0) at low pressure (20 Torr) where multiphoton effects are dominant, it is shown that two photon excitation, resonant enhanced multiphoton ionization is the primary mechanism for quantized ionization of N{sub 2} to the N{sub 2}{sup +}(B {sup 2}SIGMA{sub u}{sup +}) state. This multiphoton effect then serves to amplify the collisional breakdown process at higher pressures by electron seeding, thereby reducing the threshold intensity from that required via CC processes for breakdown and producing high density laser formed plasmas.

Way, Jesse; Hummelt, Jason; Scharer, John [Department of Electrical and Computer Engineering, University of Wisconsin, Madison, Wisconsin 53706 (United States)

2009-10-15T23:59:59.000Z

86

Measuring Short-term Air Conditioner Demand Reductions for Operations and Settlement  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

330E 330E Measuring Short-term Air Conditioner Demand Reductions for Operations and Settlement Josh Bode, Michael Sullivan, Joseph H. Eto January 2012 The work described in this report was funded by the Office of Electricity Delivery and Energy Reliability of the U.S. Department of Energy under Contract No. DE-AC02- 05CH11231. ERNEST ORLANDO LAWRENCE BERKELEY NATIONAL LABORATORY Disclaimer This document was prepared as an account of work sponsored by the United States Government. While this document is believed to contain correct information, neither the United States Government nor any agency thereof, nor The Regents of the University of California, nor any of their employees, makes any warranty, express or implied, or assumes any legal responsibility for the accuracy, completeness, or

87

CFD Simulation and Measurement Validation of Air Distribution at the Hunan International Exhibition Center  

E-Print Network [OSTI]

The Hunan International Exhibition Center (HIEC) is a large space building. A stratified air-conditioning system on the second floor of the building has been adopted. Due to some problems with the air supply jet diffuser, CFD simulations were...

Deng, T.; Zhang, Q.; Zhang, G.; Yuan, H.

2006-01-01T23:59:59.000Z

88

Measuring Welfare Loss Caused by Air Pollution in Europe: A CGE Analysis  

E-Print Network [OSTI]

To evaluate the socio-economic impacts of air pollution, we develop an integrated approach based on computable general equilibrium (CGE). Applying our approach to Europe shows that even there, where air quality is relatively ...

Paltsev, Sergey

89

Measuring Diversity on a Low-Altitude UAV in a Ground-to-Air Wireless 802.11 Mesh Network  

E-Print Network [OSTI]

Measuring Diversity on a Low-Altitude UAV in a Ground-to-Air Wireless 802.11 Mesh Network H. T ground node and receivers on a small, low-altitude unmanned aerial vehicle (UAV) in a 802.11 wireless as well. I. INTRODUCTION Small, low-altitude unmanned aerial vehicles (UAVs) have reached a development

Kung, H. T.

90

Abstract We present an inertial sensor based moni-toring system for measuring upper limb movements in  

E-Print Network [OSTI]

on the inertial mea- surements of the wrist motion. An efficient simulated annealing optimisation method to be quantified, and hence appropriate instruments for quantitative measurements are desirable to capture motion

Hu, Huosheng

91

Deformation of Upper Carboniferous coal measures in the Sydney Basin: evidence for late Alleghanian tectonism in Atlantic Canada  

Science Journals Connector (OSTI)

...minimum (Rmin) presque perpendiculaires au litage et se dispersant en travers des axes de plis. Ce patron implique que la plus...effects of rifting on the onshore Nova Scotian margin, Canada. Nuclear Tracks and Radiation Measurements, 17, 373-378. Robb...

M.R. Gibling; W. Langenberg; W.D. Kalkreuth; J.W.F. Waldron; R. Courtney; J. Paul; A.M. Grist

92

Air/water subchannel measurements of the equilibrium quality and mass-flux distribution in a rod bundle. [BWR  

SciTech Connect (OSTI)

Subchannel measurements were performed in order to determine the equilibrium quality and mass flux distribution in a four rod bundle, using air/water flow. An isokinetic technique was used to sample the flow in the center, side and corner subchannels of this test section. Flow rates of the air and water in each sampled subchannel were measured. Experiments were performed for two test-section-average mass fluxes (0.333x10/sup 6/ and 0.666x10/sup 6/ lb/sub m//h-ft/sup 2/), and the test-section-average quality was varied from 0% to 0.54% for each mass flux. Single-phase liquid, bubbly, slug and churn-turbulent two-phase flow regimes were achieved. The observed data trends agreed with previous diabatic measurements in which the center subchannel had the highest quality and mass flux, while the corner subchannel had the lowest.

Sterner, R.W.; Lahey, R.T. Jr.

1983-07-01T23:59:59.000Z

93

Fault detection methods for vapor-compression air conditioners using electrical measurements  

E-Print Network [OSTI]

(cont.) This method was experimentally tested and validated on a commercially available air handler and duct system. In the second class of faults studied, liquid refrigerant, rather than vapor, enters the cylinder of a ...

Laughman, Christopher Reed.

2008-01-01T23:59:59.000Z

94

upper (hydroelectric) development  

Science Journals Connector (OSTI)

upper (hydroelectric) development, upper (hydroelectric) station, upstream (hydroelectric) development, upstream (hydroelectric) station ? Oberstufe f, oberes Wasserkraftwerk n, Oberliegerkraftwerk

2014-08-01T23:59:59.000Z

95

A Laboratory Method For Measuring The Ozone Emission From In-duct Air Cleaners.  

E-Print Network [OSTI]

: Emission rate, HVAC air cleaners, electrostatic precipitators, coronas, standard test method 1 Introduction and to ozone byproducts. Currently there are standards and regulations that limit ozone emissions from portable cleaners (i.e., Viner et al., 1992), are generally exempt from standards and regulations because

Siegel, Jeffrey

96

E-Print Network 3.0 - air fluorescence measurements Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

naphthalene with laser-induced fluorescence M. Martinez... and Physics Discussions Measuring ... Source: Ecole Polytechnique, Centre de mathmatiques Collection:...

97

Interpretation of the depths of maximum of extensive air showers measured by the Pierre Auger Observatory  

SciTech Connect (OSTI)

To interpret the mean depth of cosmic ray air shower maximum and its dispersion, we parametrize those two observables as functions of the first two moments of the ln A distribution. We examine the goodness of this simple method through simulations of test mass distributions. The application of the parameterization to Pierre Auger Observatory data allows one to study the energy dependence of the mean ln A and of its variance under the assumption of selected hadronic interaction models. We discuss possible implications of these dependences in term of interaction models and astrophysical cosmic ray sources.

Collaboration: Pierre Auger Collaboration

2013-02-01T23:59:59.000Z

98

O{sub 2} rotational temperature measurements in an atmospheric air microdischarge by radar resonance-enhanced multiphoton ionization  

SciTech Connect (OSTI)

Nonintrusive spatially resolved rotational temperature measurements in an atmospheric air microdischarge are presented. The measurements were based on coherent microwave Rayleigh scattering (Radar) from resonance-enhanced multiphoton ionization of molecular oxygen. The open air DC microdischarge source operated in a stable 'normal-glow' mode and pin-to-pin electrodes spaced 1.3 mm apart. The second harmonic of a tunable dye laser beam was focused between the two electrodes and scanned between 286 and 288 nm. Coherent microwave Rayleigh scattering was used to collect the two-photon rotational spectra of O{sub 2} at C{sup 3}{Pi}(v = 2) Leftwards-Arrow X{sup 3}{Sigma}(v Prime = 0) transitions. The Boltzmann plots from analyses of the O{sub 2} rotational lines determined local rotational temperatures at various axial locations between the electrodes. The molecular oxygen rotational temperature varied from {approx}1150 K to {approx}1350 K within the discharge area. The measurements had an accuracy of {approx}{+-}50 K.

Sawyer, Jordan; Wu, Yue; Zhang, Zhili [Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee, Knoxville Tennessee 37996 (United States)] [Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee, Knoxville Tennessee 37996 (United States); Adams, Steven F. [Air Force Research Laboratory (AFRL/RQQE), Wright-Patterson AFB, Ohio 45433-7919 (United States)] [Air Force Research Laboratory (AFRL/RQQE), Wright-Patterson AFB, Ohio 45433-7919 (United States)

2013-06-21T23:59:59.000Z

99

Thermodynamics of SiO2H2O uid near the upper critical end point from quartz solubility measurements at 10 kbar  

E-Print Network [OSTI]

fundamental implications for uid-rock interaction in the lower crust and upper mantle (Manning, 2004; Hack et systems may exhibit critical end points on their hydrous melting curves (e.g., Hack et al., 2007a

Manning, Craig

100

Muons in air showers at the Pierre Auger Observatory: Measurement of atmospheric production depth  

E-Print Network [OSTI]

The surface detector array of the Pierre Auger Observatory provides information about the longitudinal development of the muonic component of extensive air showers. Using the timing information from the flash analog-to-digital converter traces of surface detectors far from the shower core, it is possible to reconstruct a muon production depth distribution. We characterize the goodness of this reconstruction for zenith angles around 60 deg. and different energies of the primary particle. From these distributions we define X(mu)max as the depth along the shower axis where the production of muons reaches maximum. We explore the potentiality of X(mu)max as a useful observable to infer the mass composition of ultrahigh-energy cosmic rays. Likewise, we assess its ability to constrain hadronic interaction models.

Pierre Auger Collaboration

2014-07-22T23:59:59.000Z

Note: This page contains sample records for the topic "upper air measurements" 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

A Prototype Passive Air Sampler for Measuring Dry Deposition of Polycyclic Aromatic Hydrocarbons  

Science Journals Connector (OSTI)

(6, 11) The use of the Pas-DD collector to collect PAH dry deposition data at a high spatial resolution to generate deposition maps is analogous to the way that mosses, lichens, and other biomonitors are used to map spatial deposition, but overcoming some of the inconsistency and interpretation challenges associated with biomonitoring. ... Approximately 36% of the PUF disk total outer surface area is covered by the open plate and perforated support that holds the PUF disk in place; countering reduction in sampling for the Pas-DD collector is the higher wind speed through the Pas-DD collector plates that will reduce air-side mass transfer resistance and enhance chemical sampling rates. ... using models that account for particle size distribution show that the results are extremely sensitive to the mass of large particles and that large particles control dry deposition flux due to their high deposition velocities. ...

Anita Eng; Tom Harner; Karla Pozo

2013-09-19T23:59:59.000Z

102

Cloud Model Evaluation Using Radiometric Measurements from the Airborne Multiangle Imaging Spectroradiometer (AirMISR)  

SciTech Connect (OSTI)

Detailed information on cloud properties is needed to vigorously test retrieval algorithms for satellite and ground-based remote sensors. The inherent complexity of clouds makes this information difficult to obtain from observations alone and cloud resolving models are often used to generating synthetic datasets that can be used as proxies for real data. We test the ability of a cloud resolving model to reproduce cloud structure in a case study of low-level clouds observed by the Earth Observing System (EOS) validation program in north central Oklahoma on March 3, 2000. A three-dimensional radiative transfer model is applied to synthetic cloud properties generated by a high-resolution three-dimensional cloud model in order to simulate the top of atmosphere radiances. These synthetic radiances are then compared with observations from the airborne Multiangle Imaging SpectroRadiometer (AirMISR), flown on the NASA ER-2 high-altitude aircraft.

Ovtchinnikov, Mikhail; Marchand, Roger T.

2007-03-01T23:59:59.000Z

103

E-Print Network 3.0 - air ballot measures Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

audits Risk-Limiting Audits Summary: Ideas Pilot audits Ballot-level audits 2008 Yolo County, CA Measure W Audit 12;Goal of auditing Big... Goal of auditing Big Ideas Pilot...

104

Intensity clamping measurement of laser filaments in air at 400 and 800 nm  

SciTech Connect (OSTI)

Molecular N{sub 2} fluorescence excited by laser filaments formed from laser pulses at 400 and 800 nm propagating in air is investigated. A comparison showed that, when excited with 400 nm photons, the fluorescence from the first negative band of N{sub 2}{sup +} was enhanced by a factor of 6.4 while that of the second positive band of neutral N{sub 2} remained relatively constant. The enhanced N{sub 2}{sup +} signal is attributed to a more efficient inner-shell multiphoton process (to the B{sup 2{Sigma}}{sub u}{sup +} state) at 400 nm leaving a larger population of N{sub 2}{sup +} ions in the excited state. On the other hand, the stable fluorescence from neutral N{sub 2} is due to the fact that the plasma density is more or less the same at both wavelengths. Using these results, a theoretical model is developed to determine the clamped intensities of the laser filaments at 400 and 800 nm.

Daigle, J.-F.; Hosseini, S.; Wang, T.-J.; Kamali, Y.; Chin, S. L. [Centre d'Optique, Photonique et Laser (COPL) and Departement de Physique, de Genie Physique et d'Optique, Universite Laval, Quebec, Quebec G1V 0A6 (Canada); Jaron-Becker, A.; Becker, A. [JILA and Department of Physics, University of Colorado, Boulder, Colorado 80309-0440 (United States); Roy, G. [Defence Research and Development Canada-Valcartier, 2459 Pie-XI Boulevard North, Quebec, Quebec G3J 1X5 (Canada)

2010-08-15T23:59:59.000Z

105

Estimating Air Chemical Emissions from Research Activities Using Stack Measurement Data  

SciTech Connect (OSTI)

Current methods of estimating air emissions from research and development (R&D) activities use a wide range of release fractions or emission factors with bases ranging from empirical to semi-empirical. Although considered conservative, the uncertainties and confidence levels of the existing methods have not been reported. Chemical emissions were estimated from sampling data taken from four research facilities over ten years. The approach was to use a Monte Carlo technique to create distributions of annual emission estimates for target compounds detected in source test samples. Distributions were created for each year and building sampled for compounds with sufficient detection frequency to qualify for the analysis. The results using the Monte Carlo technique without applying a filter to remove negative emission values showed almost all distributions spanning zero, and forty percent of the distributions having a negative mean. This indicates that emissions are so low as to be indistinguishable from building background. Application of a filter to allow only positive values in the distribution provided a more realistic value for emissions and increased the distribution mean by an average of sixteen percent. Release fractions were calculated by dividing the emission estimates by a building chemical inventory quantity. Two variations were used for this quantity: chemical usage, and chemical usage plus one-half standing inventory. Filters were applied so that only release fraction values from zero to one were included in the resulting distributions. Release fractions had a wide range among chemicals and among data sets for different buildings and/or years for a given chemical. Regressions of release fractions to molecular weight and vapor pressure showed weak correlations. Similarly, regressions of mean emissions to chemical usage, chemical inventory, molecular weight and vapor pressure also gave weak correlations. These results highlight the difficulties in estimating emissions from R&D facilities using chemical inventory data.

Ballinger, Marcel Y.; Duchsherer, Cheryl J.; Woodruff, Rodger K.; Larson, Timothy V.

2013-02-15T23:59:59.000Z

106

Time-resolved measurements of plasma-induced momentum in air and nitrogen under dielectric barrier discharge actuation  

SciTech Connect (OSTI)

There has been much recent interest in boundary layer (BL) actuation by offset surface dielectric barrier discharges (SDBD). These discharges either act directly on the gas momentum through the mechanism of charge separation or they increase the flow stability through the creation of disturbances to the BL at a particular frequency. The objective of the work reported here is to clarify the physical mechanism of plasma-flow interaction. Two problems are considered in detail: the exact spatial/temporal distribution of the plasma-related force, and the specific role of negative ions in the net force budget. The experiments were made with an offset electrode configuration of SDBD at voltage amplitude U{<=}12 kV and frequency f=0.02-2 kHz. The main data were obtained by time-resolved Pitot tube pressure measurements in air and nitrogen at atmospheric pressure. Three main features of SDBD behavior were considered. First, the strong inhomogeneity in the spatial distribution of the plasma-induced flow were detected. Second, the principal role of negative ions in plasma-induced flow generation was established. Third, the two types of gas disturbances were observed: the thermal effect and momentum transfer effect (ion wind). To explain the aforementioned features of SDBD behavior in air and nitrogen the results of numerical simulation have been used.

Leonov, Sergey [Joint Institute for High Temperature, RAS, Moscow 125412 (Russian Federation); Opaits, Dmitry; Miles, Richard [Princeton University, Princeton, New Jersey 08544 (United States); Soloviev, Victor [Moscow Institute of Physics and Technology, Dolgoprudnyi, Moscow Region 141700 (Russian Federation)

2010-11-15T23:59:59.000Z

107

Air fluorescence measurements in the spectral range 300-420 nm using a 28.5 GeV electron beam  

E-Print Network [OSTI]

Measurements are reported of the yield and spectrum of fluorescence, excited by a 28.5 GeV electron beam, in air at a range of pressures of interest to ultra-high energy cosmic ray detectors. The wavelength range was 300 - 420 nm. System calibration has been performed using Rayleigh scattering of a nitrogen laser beam. In atmospheric pressure dry air at 304 K the yield is 20.8 +/- 1.6 photons per MeV.

R. Abbasi; T. Abu-Zayyad; K. Belov; J. Belz; Z. Cao; M. Dalton; Y. Fedorova; P. Huentemeyer; B. F. Jones; C. C. H. Jui; E. C. Loh; N. Manago; K. Martens; J. N. Matthews; M. Maestas; J. Smith; P. Sokolsky; R. W. Springer; J. Thomas; S. Thomas; P. Chen; C. Field; C. Hast; R. Iverson; J. S. T. Ng; A. Odian; K. Reil; D. Walz; D. R. Bergman; G. Thomson; A. Zech; F-Y. Chang; C-C. Chen; C-W. Chen; M. A. Huang; W-Y. P. Hwang; G-L. Lin

2007-08-23T23:59:59.000Z

108

Upper-ocean variability in Drake Passage and the Weddell Sea : Measuring the oceanic response to air-sea and ice-ocean interactions  

E-Print Network [OSTI]

blocks melting into a salinity gradient. J. Fluid Mech. ,with depth, but a salinity gradient near the surface is notW) (Fig. 2.4d-f), the salinity gradient is much weaker, and

Stephenson, Gordon Ronald

2012-01-01T23:59:59.000Z

109

Pion Production Cross-section Measurements in p+C Collisions at the CERN SPS for Understanding Extensive Air Showers  

E-Print Network [OSTI]

An important approach to studying high-energy cosmic rays is the investigation of the properties of extensive air showers; however, the lateral distribution of particles in simulations of such showers strongly depends on the applied model of low-energy hadronic interactions. It has been shown that many constraints to be applied to these models can be obtained by studying identified-particle spectra from accelerator collisions, in the energy range of the CERN Super Proton Synchrotron. Here we present measurements of the pion production cross-section obtained by the NA61/SHINE experiment at the SPS, in proton-carbon collisions at the beam energy of 31 GeV from the year 2007. Further analyses of identified-particle yields in SHINE, in particular with a pion beam, are in preparation.

Marek Szuba; for the NA61/SHINE Collaboration

2010-09-16T23:59:59.000Z

110

A passive measurement of dissociated atom densities in atmospheric pressure air discharge plasmas using vacuum ultraviolet self-absorption spectroscopy  

SciTech Connect (OSTI)

We demonstrate a method for determining the dissociation degree of atmospheric pressure air discharges by measuring the self-absorption characteristics of vacuum ultraviolet radiation from O and N atoms in the plasma. The atom densities are determined by modeling the amount of radiation trapping present in the discharge, without the use of typical optical absorption diagnostic techniques which require external sources of probing radiation into the experiment. For an 8.0?mm spark discharge between needle electrodes at atmospheric pressure, typical peak O atom densities of 8.5?×?10{sup 17}?cm{sup ?3} and peak N atom densities of 9.9?×?10{sup 17}?cm{sup ?3} are observed within the first ?1.0?mm of plasma near the anode tip by analyzing the OI and NI transitions in the 130.0–132.0?nm band of the vacuum ultraviolet spectrum.

Laity, George [Center for Pulsed Power and Power Electronics, Department of Electrical and Computer Engineering and Department of Physics, Texas Tech University, Lubbock, Texas 79409 (United States); Applied Science and Technology Maturation Department, Sandia National Laboratories, Albuquerque, New Mexico 87123 (United States); Fierro, Andrew; Dickens, James; Neuber, Andreas [Center for Pulsed Power and Power Electronics, Department of Electrical and Computer Engineering and Department of Physics, Texas Tech University, Lubbock, Texas 79409 (United States); Frank, Klaus [Erlangen Centre for Astroparticle Physics, Department of Physics, Friedrich–Alexander University at Erlangen-Nürnberg, 91058 Erlangen (Germany)

2014-03-28T23:59:59.000Z

111

Air Shower Measurements in the Primary Energy Range from PeV to EeV  

E-Print Network [OSTI]

Recent results of advanced experiments with sophisticated measurements of cosmic rays in the energy range of the so called knee at a few PeV indicate a distinct knee in the energy spectra of light primary cosmic rays and an increasing dominance of heavy ones towards higher energies. This leads to the expectation of knee-like features of the heavy primaries at around 100 PeV. To investigate in detail this energy region several new experiments are or will be devised.

Andreas Haungs

2006-10-23T23:59:59.000Z

112

Measurements of air-sea gas exchange at high wind speeds in the Southern Ocean: Implications for global parameterizations  

E-Print Network [OSTI]

August 2006. [1] The SOLAS Air-Sea Gas Exchange (SAGE) Experiment was conducted in the western Pacific of air-sea gas exchange. Globally, the dominant control of air-sea gas exchange is turbulent energy as the primary source of energy for the atmospheric and oceanic molecular boundary layers have been derived from

Ho, David

113

113 air quality control station [n  

Science Journals Connector (OSTI)

envir. (Facility for measurement of air pollution; ? air quality network/system );s estación [f] de medición de la calidad del aire (? red de ev...

2010-01-01T23:59:59.000Z

114

Apparatus for measuring the decontamination factor of a multiple filter air-cleaning system  

DOE Patents [OSTI]

An apparatus for measuring the overall decontamination factors of first and second filters located in a plenum. The first filter separates the plenum's upstream and intermediate chambers. The second filter separates the plenum's intermediate and downstream chambers. The apparatus comprises an aerosol generator that generates a challenge aerosol. An upstream collector collects unfiltered aerosol which is piped to first and second dilution stages and then to a laser aerosol spectrometer. An intermediate collector collects challenge aerosol that penetrates the first filter. The filtered aerosol is piped to the first dilution stage, diluted, and then piped to the laser aerosol spectrometer which detects single particles. A downstream collector collects challenge aerosol that penetrates both filters. The twice-filtered aerosol is piped to the aerosol spectrometer. A pump and several valves control the movement of aerosol within the apparatus.

Ortiz, J.P.

1985-07-03T23:59:59.000Z

115

Energy savings and cost-effectiveness of heat exchanger use as an indoor air quality mitigation measure in the BPA weatherization program  

Science Journals Connector (OSTI)

The Bonneville Power Administration (BPA) has proposed a ten year program to encourage the weatherization of electrically heated homes in the Pacific Northwest. The purpose of this program is to reduce residential electrical energy demand for space heating. If air infiltration rates are reduced by employing house tightening measures, indoor air quality mitigation measures may be required in residences with significant sources of indoor air contaminants. The use of residential air-to-air heat exchangers has been proposed as a possible strategy to assure that indoor air quality is not substantially degraded by house tightening. We examine the energy impact and cost effectiveness of heat exchanger utilization in tightened homes in the BPA region. Significant energy savings are predicted if homes are tightened and heat exchangers are utilized. From the homeowner's perspective, the results of our economic analysis indicate that, at the relatively low residential electric rates in the BPA region, the use of heat exchangers in existing homes that are tightened is not economically viable. On the other hand, from the utility perspective, it may be cost effective to use heat exchangers in the weatherization program if the marginal cost to the utility is compared with the cost of conserved energy.

Isaac Turiel; William J. Fisk; Mark Seedall

1983-01-01T23:59:59.000Z

116

The Impact of Refrigerant Charge, Air Flow and Expansion Devices on the Measured Performance of an Air-Source Heat Pump Part I  

SciTech Connect (OSTI)

This paper describes extensive tests performed on a 3-ton R-22 split heat pump in heating mode. The tests contain 150 steady-state performance tests, 18 cyclic tests and 18 defrost tests. During the testing work, the refrigerant charge level was varied from 70 % to 130% relative to the nominal value; the outdoor temperature was altered by three levels at 17 F (-8.3 C), 35 F (1.7 C) and 47 F (8.3 C); indoor air flow rates ranged from 60% to 150% of the rated air flow rate; and the expansion device was switched from a fixed-orifice to a thermal expansion value. Detailed performance data from the extensive steady state cyclic and defrost testing performed were presented and compared.

Shen, Bo [ORNL

2011-01-01T23:59:59.000Z

117

Measurements of Ice Crystal Growth Rates in Air at -5C and -10C K. G. Libbrecht and H. M. Arnold  

E-Print Network [OSTI]

Measurements of Ice Crystal Growth Rates in Air at -5C and -10C K. G. Libbrecht and H. M. Arnold to: kgl@caltech.edu Abstract. We present experiments investigating the growth of ice crystals from produce large morphological changes at all scales. One popular example of this phenomenon is the formation

Libbrecht, Kenneth G.

118

Measurement of gas species, temperatures, coal burnout, and wall heat fluxes in a 200 MWe lignite-fired boiler with different overfire air damper openings  

SciTech Connect (OSTI)

Measurements were performed on a 200 MWe, wall-fired, lignite utility boiler. For different overfire air (OFA) damper openings, the gas temperature, gas species concentration, coal burnout, release rates of components (C, H, and N), furnace temperature, and heat flux and boiler efficiency were measured. Cold air experiments for a single burner were conducted in the laboratory. The double-swirl flow pulverized-coal burner has two ring recirculation zones starting in the secondary air region in the burner. As the secondary air flow increases, the axial velocity of air flow increases, the maxima of radial velocity, tangential velocity and turbulence intensity all increase, and the swirl intensity of air flow and the size of recirculation zones increase slightly. In the central region of the burner, as the OFA damper opening widens, the gas temperature and CO concentration increase, while the O{sub 2} concentration, NOx concentration, coal burnout, and release rates of components (C, H, and N) decrease, and coal particles ignite earlier. In the secondary air region of the burner, the O{sub 2} concentration, NOx concentration, coal burnout, and release rates of components (C, H, and N) decrease, and the gas temperature and CO concentration vary slightly. In the sidewall region, the gas temperature, O{sub 2} concentration, and NOx concentration decrease, while the CO concentration increases and the gas temperature varies slightly. The furnace temperature and heat flux in the main burning region decrease appreciably, but increase slightly in the burnout region. The NOx emission decreases from 1203.6 mg/m{sup 3} (6% O{sub 2}) for a damper opening of 0% to 511.7 mg/m{sup 3} (6% O{sub 2}) for a damper opening of 80% and the boiler efficiency decreases from 92.59 to 91.9%. 15 refs., 17 figs., 3 tabs.

Jianping Jing; Zhengqi Li; Guangkui Liu; Zhichao Chen; Chunlong Liu [Harbin Institute of Technology, Harbin (China). School of Energy Science and Engineering

2009-07-15T23:59:59.000Z

119

p-air cross-section measurement at 1018.5 for the High Resolution Fly's Eye (HiRes) Collaboration.  

E-Print Network [OSTI]

-section measurements using cos- mic ray data. The ultra-high energy cosmic ray flux inten- sity is very low and cosmic-section measurement using cosmic ray data was done us- ing an analysis of the form of the distribution of air showerRes) Collaboration. a Department of Physics, University of Utah, 201 JFB 115 S 1400 E, Salt Lake City, Utah, 84112

120

The Upper Atmosphere Observatory  

Science Journals Connector (OSTI)

...with *the plasma frethe progress...explorcreated an even larger number of...the upper atmosphere and ionosphere...the upper atmosphere. For this...ionospheric plasma motion simul-taneously...field is large, the horizontal...resolved. The atmospheric gravity waves...simul-taneously at a large number of...two regions plasma drifts separated...

J. V. Evans

1972-05-05T23:59:59.000Z

Note: This page contains sample records for the topic "upper air measurements" 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

Air Conditioning  

Science Journals Connector (OSTI)

Air Conditioning ... CHEMISTS and engineers use air conditioning as a valuable tool in more than two hundred industries. ... Air conditioning is a tool with many facets. ...

MARGARET INGELS

1938-02-10T23:59:59.000Z

122

Laser Spark Ignition of Premixed Methane-Air Mixtures: Parameter Measurements and Determination of Key Factors for Ultimate Ignition Results  

Science Journals Connector (OSTI)

In this study, we present an experimental investigation of the parameters of the laser spark ignition of premixed methane-air mixtures and the determination of the key factors for the...

Li, Xiaohui; Smith, Benjamin W; Omenetto, Nicoló

2014-01-01T23:59:59.000Z

123

A New Method to Reconstruct the Energy and Determine the Composition of Cosmic Rays from the Measurement of Cherenkov Light and Particle Densities in Extensive Air Showers  

E-Print Network [OSTI]

A Monte-Carlo study to reconstruct energy and mass of cosmic rays with energies above 300 TeV using ground based measurements of the electromagnetic part of showers initiated in the atmosphere is presented. The shower properties determined with two detector arrays measuring the air Cherenkov light and the particle densities as realized at the HEGRA experiment are processed to determine the energy of the primary particle without the need of any hypothesis concerning its mass. The mass of the primary particle is reconstructed coarsely from the same observables in parallel to the energy determination.

A. Lindner

1998-01-15T23:59:59.000Z

124

The energy spectrum of cosmic rays above 10^15 eV as derived from air Cherenkov light measurements in Yakutsk  

E-Print Network [OSTI]

The Yakutsk array observes the Cherenkov light emitted by UHECR in atmosphere. Recently, an autonomous subarray is added consisting of photomultipliers to measure the showers in the knee region. Our aim is to analyze the combined data set in order to derive the cosmic ray spectrum in the energy range as wide as possible using the same technique. The advantage of the air Cherenkov light measurement is the model independent estimation of the EAS primary energy using the total light flux emitted in the atmosphere. A set of the light lateral distributions observed in the extended energy range is presented also.

A. A. Ivanov; S. P. Knurenko; I. Ye. Sleptsov

2003-05-05T23:59:59.000Z

125

A direct method for air kerma–length product measurement in CT for verification of dose display calibrations  

Science Journals Connector (OSTI)

......kerma-length product measurement in CT for verification of dose display calibrations...kerma-length product measurement in CT for verification of dose display calibrations...practice, this means doing measurements in the standard phantoms......

Katja Merimaa; Hannu Järvinen; Mika Kortesniemi; Juhani Karppinen

2010-08-01T23:59:59.000Z

126

Measurements of Fission Products from the Fukushima Daiichi Incident in San Francisco Bay Area Air Filters, Automobile Filters, Rainwater, and Food  

E-Print Network [OSTI]

A variety of environmental media were analyzed for fallout radionuclides resulting from the Fukushima nuclear accident by the Low Background Facility (LBF) at the Lawrence Berkeley National Laboratory (LBNL) in Berkeley, CA. Monitoring activities in air and rainwater began soon after the onset of the March 11, 2011 tsunami and are reported here through the end of 2012. Observed fallout isotopes include $^{131}$I, $^{132}$I,$^{132}$Te,$^{134}$Cs, $^{136}$Cs, and $^{137}$Cs. Isotopes were measured on environmental air filters, automobile filters, and in rainwater. An additional analysis of rainwater in search of $^{90}$Sr is also presented. Last, a series of food measurements conducted in September of 2013 are included due to extended media concerns of $^{134, 137}$Cs in fish. Similar measurements of fallout from the Chernobyl disaster at LBNL, previously unpublished publicly, are also presented here as a comparison with the Fukushima incident. All measurements presented also include natural radionuclides found in the environment to provide a basis for comparison.

A. R. Smith; K. J. Thomas; E. B. Norman; D. L. Hurley; B. T. Lo; Y. D. Chan; P. V. Guillaumon; B. G. Harvey

2013-12-27T23:59:59.000Z

127

New indicator approaches for effective urban air quality management  

Science Journals Connector (OSTI)

Measurements of urban air quality at monitoring stations in developed countries have frequently involved the criteria gaseous pollutants, particulates, hazardous air pollutants, perceived air quality and relev...

Peter J. Peterson; W. Peter Williams

1999-12-01T23:59:59.000Z

128

The Upper Atmosphere Observatory  

Science Journals Connector (OSTI)

...DATA, JOURNAL OF ATMOSPHERIC AND TERRESTRIAL...IN NEAR-EARTH PLASMA, SPACE SCIENCE...INVESTIGATION OF WHISTLING ATMOSPHERICS, PHILOSOPHICAL...TRANSPOLAR EXOSPHERIC PLASMA .1. PLASMASPHERE...dynamics of the upper atmosphere. For this purpose...the ionospheric plasma motion simul-taneously...

J. V. Evans

1972-05-05T23:59:59.000Z

129

Detection of $^{133}$Xe from the Fukushima nuclear power plant in the upper troposphere above Germany  

E-Print Network [OSTI]

After the accident in the Japanese Fukushima Dai-ichi nuclear power plant in March 2011 large amounts of radioactivity were released and distributed in the atmosphere. Among them were also radioactive noble gas isotopes which can be used as tracers to test global atmospheric circulation models. This work presents unique measurements of the radionuclide $^{133}$Xe from Fukushima in the upper troposphere above Germany. The measurements involve air sampling in a research jet aircraft followed by chromatographic xenon extraction and ultra-low background gas counting with miniaturized proportional counters. With this technique a detection limit of the order of 100 $^{133}$Xe atoms in litre-scale air samples (corresponding to about 100 mBq/m$^3$) is achievable. Our results provide proof that the $^{133}$Xe-rich ground level air layer from Fukushima was lifted up to the tropopause and distributed hemispherically. Moreover, comparisons with ground level air measurements indicate that the arrival of the radioactive plume at high altitude over Germany occurred several days before the ground level plume.

Hardy Simgen; Frank Arnold; Heinfried Aufmhoff; Robert Baumann; Florian Kaether; Sebastian Lindemann; Ludwig Rauch; Hans Schlager; Clemens Schlosser; Ulrich Schumann

2014-12-05T23:59:59.000Z

130

Pre-clinical Measures of Eye Damage (Lens Opacity), Case-control Study of Tuberculosis, and Indicators of Indoor Air Pollution from Biomass Smoke  

E-Print Network [OSTI]

K.R. , Biofuels, Air Pollution and Health: A Global Review.K.R. , Biofuels, Air Pollution and Health: A Global Review.K.R. , Biofuels, Air Pollution and Health: A Global Review.

Pokhrel, Amod Kumar

2010-01-01T23:59:59.000Z

131

A Flux-Gradient System for Simultaneous Measurement of the CH4, CO2, and H2O Fluxes at a Lake–Air Interface  

Science Journals Connector (OSTI)

This study aims to test the performance of a flux-gradient system for simultaneous measurement of the fluxes of water vapor, CO2, and CH4 at a lake–air interface. ... The K parametrization(32) has been successfully deployed for flux observations in terrestrial ecosystems,(33) but to the best of the authors’ knowledge, extensive testing of this method for lake systems has not yet been reported in the published literature. ... This correction procedure has been thoroughly tested by the manufacturer up to a water vapor concentration of 1 %v. ...

Wei Xiao; Shoudong Liu; Hanchao Li; Qitao Xiao; Wei Wang; Zhenghua Hu; Cheng Hu; Yunqiu Gao; Jing Shen; Xiaoyan Zhao; Mi Zhang; Xuhui Lee

2014-11-07T23:59:59.000Z

132

OPERATIONAL LIMITATIONS FOR DEMOLITION OF A HIGHLY ALPHA CONTAMINATED BUILDING MODLES VERSUS MEASURED AIR & SURFACE ACTIVITY CONCENTRATIONS  

SciTech Connect (OSTI)

The demolition of a facility historically used for processing and handling transuranic materials is considered. Residual alpha emitting radionuclide contamination poses an exposure hazard if released to the local environment during the demolition. The process of planning for the demolition of this highly alpha contaminated building, 232-Z, included a predemolition modeling analysis of potential exposures. Estimated emission rates were used as input to an air dispersion model to estimate frequencies of occurrence of peak air and surface exposures. Postdemolition modeling was also conducted, based on the actual demolition schedule and conditions. The modeling results indicated that downwind deposition is the main operational limitation for demolition of a highly alpha-contaminated building. During the demolition of 232-Z, airborne radiation and surface contamination were monitored. The resultant non-detect monitoring results indicate a significant level of conservatism in the modeled results. This comparison supports the use of more realistic assumption in the estimating emission rates. The resultant reduction in modeled levels of potential exposures has significant implications in terms of the projected costs of demolition of such structures.

LLOYD, E.R.

2006-11-02T23:59:59.000Z

133

Upper East Fork Poplar Creek  

Broader source: Energy.gov [DOE]

This document explains the cleanup activities and any use limitations for the land surrounding the Upper East Fork Poplar Creek.

134

Air Quality  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

What We Monitor & Why » What We Monitor & Why » Air Quality Air Quality To preserve our existing wilderness-area air quality, LANL implements a conscientious program of air monitoring. April 12, 2012 Real-time data monitoring for particulate matter An air monitoring field team member tests one of LANL's tapered element oscillating microbalance samplers, which collects real-time particulate matter data. Contact Environmental Communication & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email LANL monitors air quality 24 hours a day, 365 days a year. Why we monitor air LANL monitors many different pathways in order to assess their impact on workers, the public, animals, and plants. We monitor the air around the Laboratory to ensure our operations are not affecting the air of nearby

135

ON COMPUTING UPPER LIMITS TO SOURCE INTENSITIES  

SciTech Connect (OSTI)

A common problem in astrophysics is determining how bright a source could be and still not be detected in an observation. Despite the simplicity with which the problem can be stated, the solution involves complicated statistical issues that require careful analysis. In contrast to the more familiar confidence bound, this concept has never been formally analyzed, leading to a great variety of often ad hoc solutions. Here we formulate and describe the problem in a self-consistent manner. Detection significance is usually defined by the acceptable proportion of false positives (background fluctuations that are claimed as detections, or Type I error), and we invoke the complementary concept of false negatives (real sources that go undetected, or Type II error), based on the statistical power of a test, to compute an upper limit to the detectable source intensity. To determine the minimum intensity that a source must have for it to be detected, we first define a detection threshold and then compute the probabilities of detecting sources of various intensities at the given threshold. The intensity that corresponds to the specified Type II error probability defines that minimum intensity and is identified as the upper limit. Thus, an upper limit is a characteristic of the detection procedure rather than the strength of any particular source. It should not be confused with confidence intervals or other estimates of source intensity. This is particularly important given the large number of catalogs that are being generated from increasingly sensitive surveys. We discuss, with examples, the differences between these upper limits and confidence bounds. Both measures are useful quantities that should be reported in order to extract the most science from catalogs, though they answer different statistical questions: an upper bound describes an inference range on the source intensity, while an upper limit calibrates the detection process. We provide a recipe for computing upper limits that applies to all detection algorithms.

Kashyap, Vinay L.; Siemiginowska, Aneta [Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138 (United States); Van Dyk, David A.; Xu Jin [Department of Statistics, University of California, Irvine, CA 92697-1250 (United States); Connors, Alanna [Eureka Scientific, 2452 Delmer Street, Suite 100, Oakland, CA 94602-3017 (United States); Freeman, Peter E. [Department of Statistics, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213 (United States); Zezas, Andreas, E-mail: vkashyap@cfa.harvard.ed, E-mail: asiemiginowska@cfa.harvard.ed, E-mail: dvd@ics.uci.ed, E-mail: jinx@ics.uci.ed, E-mail: aconnors@eurekabayes.co, E-mail: pfreeman@cmu.ed, E-mail: azezas@cfa.harvard.ed [Physics Department, University of Crete, P.O. Box 2208, GR-710 03, Heraklion, Crete (Greece)

2010-08-10T23:59:59.000Z

136

Pilot Implementation of a Field Study Design to Evaluate the Impact of Source Control Measures on Indoor Air Quality in High Performance Homes  

SciTech Connect (OSTI)

To improve the indoor air quality in new, high performance homes, a variety of standards and rating programs have been introduced to identify building materials that are designed to have lower emission rates of key contaminants of concern and a number of building materials are being introduced that are certified to these standards. For example, the U.S. Department of Energy (DOE) Zero Energy Ready Home program requires certification under the U.S. Environmental Protection Agency (EPA) Indoor airPLUS (IaP) label, which requires the use of PS1 or PS2 certified plywood and OSB; low-formaldehyde emitting wood products; low- or no-VOC paints and coatings as certified by Green Seal Standard GS-11, GreenGuard, SCS Indoor Advantage Gold Standard, MPI Green Performance Standard, or another third party rating program; and Green Label-certified carpet and carpet cushions. However, little is known regarding the efficacy of the IAP requirements in measurably reducing contaminant exposures in homes. The goal of this project is to develop a robust experimental approach and collect preliminary data to support the evaluation of indoor air quality (IAQ) measures linked to IAP-approved low-emitting materials and finishes in new residential homes. To this end, the research team of Pacific Northwest National Laboratory (PNNL) and Lawrence Berkeley National Laboratory (LBNL) developed a detailed experimental plan to measure IAQ constituents and other parameters, over time, in new homes constructed with materials compliant with IAP’s low-emitting material and ventilation requirements (i.e., section 6.1, 6.2, 6.3, and 7.2) and similar homes constructed to the state building code with conventional materials. The IAQ in IAP and conventional homes of similar age, location, and construction style is quantified as the differences in the speciated VOC and aldehyde concentrations, normalized to dilution rates. The experimental plan consists of methods to evaluate the difference between low-emitting and “conventional” materials as installed in newly constructed residential homes using both (1) highly controlled, short-term active samples to precisely characterize the building-related chemical emissions and building contents and (2) a week-long passive sample designed to capture the impact of occupant behavior and related activities on measured IAQ contaminant levels indoors. The combination of detailed short-term measurements with the home under controlled/consistent conditions during pre- and post-occupancy and the week-long passive sampling data provide the opportunity to begin to separate the different emission sources and help isolate and quantify variability in the monitored homes. Between April and August 2014, the research team performed pre-occupancy and post-occupancy sampling in one conventional home and two homes built with low-emitting materials that were generally consistent with EPA’s Indoor airPLUS guidelines. However, for a number of reasons, the full experimental plan was not implemented. The project was intended to continue for up to three years to asses long-term changes in IAQ but the project was limited to one calendar year. As a result, several of the primary research questions related to seasonal impacts and the long-term trends in IAQ could not be addressed. In addition, there were several unexpected issues related to recruiting, availability of home types, and difficulty coordinating with builders/realtors/homeowners. Several field monitoring issues also came up that provide “lessons learned” that led to improvements to the original monitoring plan. The project produced a good experimental plan that is expected to be be useful for future efforts collecting data to support answering these same or similar research questions.

Widder, Sarah H.; Chamness, Michele A.; Petersen, Joseph M.; Singer, Brett C.; Maddalena, Randy L.; Destaillats, Hugo

2014-10-20T23:59:59.000Z

137

The multi-scale character of air pollution: impact of local measures in relation to European and regional policies - a case study in Antwerp, Belgium  

Science Journals Connector (OSTI)

This paper describes a multi-scale modelling approach designed to assess the impact of policy plans at various decision making levels (European, regional and local). The modelling framework is applied for a case study in Antwerp, Belgium. Various tunnel options and traffic management plans for the Antwerp ring road are evaluated with respect to their impact on air quality in 2020 and 2025. The modelling approach takes into account those local action plans as well as regional and European policies for these time horizons. It has been shown that reduction of traffic intensity is one of the most important measures, without which it is unlikely that current European limit values will be attained in the near future at all locations near the Antwerp ring road.

Stijn Janssen; Wouter Lefebvre; Clemens Mensink; Bart Degraeuwe

2014-01-01T23:59:59.000Z

138

The Energy Spectrum of TeV Gamma-Rays from the Crab Nebula as measured by the HEGRA system of imaging air Cherenkov telescopes  

E-Print Network [OSTI]

The Crab Nebula has been observed by the HEGRA (High-Energy Gamma-Ray Astronomy) stereoscopic system of imaging air Cherenkov telescopes (IACTs) for a total of about 200 hrs during two observational campaigns: from September 1997 to March 1998 and from August 1998 to April 1999. The recent detailed studies of system performance give an energy threshold and an energy resolution for gamma-rays of 500 GeV and ~ 18%, respectively. The Crab energy spectrum was measured with the HEGRA IACT system in a very broad energy range up to 20 TeV, using observations at zenith angles up to 65 degrees. The Crab data can be fitted in the energy range from 1 to 20 TeV by a simple power-law, which yields dJg/dE = (2.79+/-0.02 +/- 0.5) 10^{-7} E^{-2.59 +/- 0.03 +/- 0.05}, ph m^{-2} s^{-1} TeV^{-1} The Crab Nebula energy spectrum, as measured with the HEGRA IACT system, agrees within 15% in the absolute scale and within 0.1 units in the power law index with the latest measurements by the Whipple, CANGAROO and CAT groups, consistent within the statistical and systematic errors quoted by the experiments. The pure power-law spectrum of TeV gamma-rays from the Crab Nebula constrains the physics parameters of the nebula environment as well as the models of photon emission.

F. Aharonian; The HEGRA Collaboration

2000-03-13T23:59:59.000Z

139

Response of upper ocean currents to typhoons at two ADCP moorings west of the Luzon Strait  

Science Journals Connector (OSTI)

We deployed two ADCP mooring systems west of the Luzon Strait in August 2008, and measured the upper ocean currents at high frequency. Two typhoons passed over ... , we studied the response of the upper ocean to ...

Fei Chen ??; Yan Du ??; Li Yan ??…

2010-09-01T23:59:59.000Z

140

Meeting the Air Leakage  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Meeting the Air Leakage Meeting the Air Leakage Requirements of the 2012 IECC The U.S. Department of Energy (DOE) recognizes the enormous potential that exists for improving the energy efficiency, safety and comfort of homes. The newest edition of the International Energy Conservation Code ® (IECC) (2012) sets the bar higher for energy efficiency, and new air sealing requirements are one of the key new provisions. This guide is a resource for understanding the new air leakage requirements in the 2012 IECC and suggestions on how these new measures can be met. It also provides information from Building America's Air Sealing Guide, Best Practices and case studies on homes that are currently meeting the provisions. The 2012 IECC and a few International Residential Code (IRC) requirements are referenced throughout the guide.

Note: This page contains sample records for the topic "upper air measurements" 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

Upper Los Alamos Canyon Cleanup  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Upper Los Alamos Canyon Cleanup Upper Los Alamos Canyon Cleanup Upper Los Alamos Canyon Cleanup The Upper Los Alamos Canyon Project involves cleaning up hazardous materials left over from some of the Laboratory's earliest activities. Contact Environmental Communication & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email Located along Los Alamos Canyon from 7th Street to the Pajarito Ski Hill, the Upper Los Alamos Canyon Project involves examining sites in present and former Laboratory technical areas to see if any further environmental cleanup actions are needed. If not, the Laboratory can apply to have these sites removed permanently from LANL's Hazardous Waste Permit, meaning that no further actions are needed at those sites. Among the 115 sites included in the Upper LA Canyon Project, 54 have been

142

Upper Los Alamos Canyon Cleanup  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

septic tanks, sanitary and industrial waste lines, storm drains, incinerators, transformer sites, and areas in which soil has been contaminated. The Upper Los Alamos Canyon...

143

Estimates of Radioxenon Released from Southern Hemisphere Medical isotope Production Facilities Using Measured Air Concentrations and Atmospheric Transport Modeling  

SciTech Connect (OSTI)

Abstract The International Monitoring System (IMS) of the Comprehensive-Nuclear-Test-Ban-Treaty monitors the atmosphere for radioactive xenon leaking from underground nuclear explosions. Emissions from medical isotope production represent a challenging background signal when determining whether measured radioxenon in the atmosphere is associated with a nuclear explosion prohibited by the treaty. The Australian Nuclear Science and Technology Organisation (ANSTO) operates a reactor and medical isotope production facility in Lucas Heights, Australia. This study uses two years of release data from the ANSTO medical isotope production facility and Xe-133 data from three IMS sampling locations to estimate the annual releases of Xe-133 from medical isotope production facilities in Argentina, South Africa, and Indonesia. Atmospheric dilution factors derived from a global atmospheric transport model were used in an optimization scheme to estimate annual release values by facility. The annual releases of about 6.8×1014 Bq from the ANSTO medical isotope production facility are in good agreement with the sampled concentrations at these three IMS sampling locations. Annual release estimates for the facility in South Africa vary from 1.2×1016 to 2.5×1016 Bq and estimates for the facility in Indonesia vary from 6.1×1013 to 3.6×1014 Bq. Although some releases from the facility in Argentina may reach these IMS sampling locations, the solution to the objective function is insensitive to the magnitude of those releases.

Eslinger, Paul W.; Friese, Judah I.; Lowrey, Justin D.; McIntyre, Justin I.; Miley, Harry S.; Schrom, Brian T.

2014-04-06T23:59:59.000Z

144

Pre-clinical Measures of Eye Damage (Lens Opacity), Case-control Study of Tuberculosis, and Indicators of Indoor Air Pollution from Biomass Smoke  

E-Print Network [OSTI]

air pollution from biomass combustion and acute respiratoryparticulate matter from combustion of biomass fuels in ruralcountries where combustion of biomass and kerosene is common

Pokhrel, Amod Kumar

2010-01-01T23:59:59.000Z

145

Air Pollution  

Science Journals Connector (OSTI)

Both natural processes and human activities contribute to air pollution, with the combustion of fossil fuels being the largest anthropogenic source of air pollutants. Adverse health effects (above all respiratory and cardiovascular complications), damage to crops, natural vegetation and materials, reduced visibility and changed radiation balance of the atmosphere are the major consequences of high concentrations of air pollutants. Technical fixes can sharply reduce emissions from large stationary sources and lower the rates of automotive emissions, but the rising number of vehicles and longer time spent on the road will call for more radical solutions to traffic-generated photochemical smog now present in all major urban areas.

V. Smil

2001-01-01T23:59:59.000Z

146

Chapter 22: Compressed Air Evaluation Protocol  

SciTech Connect (OSTI)

Compressed-air systems are used widely throughout industry for many operations, including pneumatic tools, packaging and automation equipment, conveyors, and other industrial process operations. Compressed-air systems are defined as a group of subsystems composed of air compressors, air treatment equipment, controls, piping, pneumatic tools, pneumatically powered machinery, and process applications using compressed air. A compressed-air system has three primary functional subsystems: supply, distribution, and demand. Air compressors are the primary energy consumers in a compressed-air system and are the primary focus of this protocol. The two compressed-air energy efficiency measures specifically addressed in this protocol are: high-efficiency/variable speed drive (VSD) compressor replacing modulating compressor; compressed-air leak survey and repairs. This protocol provides direction on how to reliably verify savings from these two measures using a consistent approach for each.

Benton, N.

2014-11-01T23:59:59.000Z

147

Bos > AIR  

E-Print Network [OSTI]

The advent of air travel has produced a building typology completely new to the 20th century. The outdated planning of regions for airports render most existing airports as isolated, autonomous instances in the urban ...

Lee, Kevin Young

2014-01-01T23:59:59.000Z

148

air_water.cdr  

Office of Legacy Management (LM)

12/2011 12/2011 Air Monitoring Groundwater Monitoring Surface Water Monitoring A continuously operating air monitoring network was in place from 1986 through 2000 for the Weldon Spring Site Remedial Action Project (WSSRAP) to measure levels of gamma radiation, radioactive dust particles, radon gas, and asbestos. With remediation of contaminated materials essentially complete and measurements indistinguishable from background, the U.S. Department of Energy (DOE) ceased perimeter and offsite air monitoring as of December 31, 2000. Groundwater has been routinely monitored at the site since 1986. Separate groundwater monitoring programs were established for the Chemical Plant and Quarry sites because of geographic separation and differences in the hydrogeologic features that influence

149

Evaluation of beta partical densitometry for determination of self-absorption factors in gross alpha and gross beta radioactivity measurements on air particulate filter samples  

E-Print Network [OSTI]

Alpha and beta particles emitted from radioactive material collected on an air filter may be significantly attenuated by the mass (thickness) of collected dust. In this study, we determined the mass or thickness of the simulated dust deposit...

Breida, Margaret A

2012-06-07T23:59:59.000Z

150

Pre-clinical Measures of Eye Damage (Lens Opacity), Case-control Study of Tuberculosis, and Indicators of Indoor Air Pollution from Biomass Smoke  

E-Print Network [OSTI]

Indoor air pollution from biomass fuels and respiratoryTuberculosis and Indoor Biomass and Kerosene Use in Nepal: AR.D. Retherford, and K.R. Smith, Biomass cooking fuels and

Pokhrel, Amod Kumar

2010-01-01T23:59:59.000Z

151

Indoor Air Pollution and Its Control in China  

Science Journals Connector (OSTI)

The status of indoor air pollution and its control in China are reviewed by introducing the pollution characteristics of major indoor air pollutants, the strategies and measures adopted to control indoor air pollution

Jiming Hao; Tianle Zhu; Xing Fan

2014-01-01T23:59:59.000Z

152

Air Resources: Prevention and Control of Air Contamination and Air  

Broader source: Energy.gov (indexed) [DOE]

Air Resources: Prevention and Control of Air Contamination and Air Air Resources: Prevention and Control of Air Contamination and Air Pollution, Air Quality Classifications and Standards, and Air Quality Area Classifications (New York) Air Resources: Prevention and Control of Air Contamination and Air Pollution, Air Quality Classifications and Standards, and Air Quality Area Classifications (New York) < Back Eligibility Agricultural Fuel Distributor Industrial Institutional Investor-Owned Utility Local Government Multi-Family Residential Municipal/Public Utility Nonprofit Rural Electric Cooperative Schools State/Provincial Govt Transportation Tribal Government Utility Program Info State New York Program Type Environmental Regulations Provider NY Department of Environmental Conservation These regulations establish emissions limits and permitting and operational

153

Detecting Air Leaks | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Detecting Air Leaks Detecting Air Leaks Detecting Air Leaks September 27, 2012 - 6:39pm Addthis For a thorough and accurate measurement of air leakage in your home, hire a qualified technician to conduct an energy assessment, particularly a blower door test. For a thorough and accurate measurement of air leakage in your home, hire a qualified technician to conduct an energy assessment, particularly a blower door test. You may already know where some air leakage occurs in your home, such as an under-the-door draft, but you'll need to find the less obvious gaps to properly air seal your home. For a thorough and accurate measurement of air leakage in your home, hire a qualified technician to conduct an energy assessment, particularly a blower door test. A blower door test, which depressurizes a home, can

154

Measurement  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

localization that limits the present measurements. The knowledge thus gained will have input not only to fusion research, but to may ques- tions of basic plasma physics....

155

Measurement  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

in the Department of Physics & Astronomy. Chapel Hill 2005 Approved: A. E. Champagne, Advisor J. C. Blackmon, Reader C. Iliadis, Reader ABSTRACT Ryan P. Fitzgerald: Measurement of...

156

Evaluation of the Indoor Air Quality Procedure for Use in Retail Buildings  

E-Print Network [OSTI]

indoor pollutant source control measures and air cleaningof indoor pollutant source control measures or gas phase aircontrol indoor pollutants, by allowing lower energy costs from reduced outdoor air

Dutton, Spencer M.

2014-01-01T23:59:59.000Z

157

Li et al., Aerosol and Air Quality Research, Vol. 6, No. 4, pp. 418-429, 2006 UV-Absorption-Based Measurements of Ozone and Mercury  

E-Print Network [OSTI]

interferences. For example, CMMs based on atomic absorption spectrometry (AAS) are subject to interferences of the Hg detection technique. Atomic absorption spectrometry (AAS) is one of the major techniques appliedLi et al., Aerosol and Air Quality Research, Vol. 6, No. 4, pp. 418-429, 2006 UV-Absorption

Li, Ying

158

Regulations for Air Quality (Quebec, Canada)  

Broader source: Energy.gov [DOE]

This Regulation establishes emission standards for particulates and gases, emission opacity standards, standards of air quality and control measures to prevent, eliminate or reduce the emission of...

159

NETL: Ambient Monitoring - Upper Ohio River Valley Project  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Upper Ohio River Valley Project Upper Ohio River Valley Project In cooperation with key stakeholders including EPA, local and state environmental agencies, industry, and academia, the U.S. Department of Energy (DOE) has established the Upper Ohio River Valley Project (UORVP), a network for monitoring and characterizing PM2.5 in the Upper Ohio River Valley. This region was chosen because it has a high density of coal-fired electric utilities, heavy industries (e.g. coke and steel making), light industry, and transportation emission sources. It is also ideally situated to serve as a platform for the study of interstate pollution transport issues. This region, with its unique topography (hills and river valleys) as well as a good mix of urban and rural areas, has a high population of elderly who are susceptible to health impacts of fine particulate as well as other related environmental issues (e.g., acid rain, Hg deposition, ozone). A world-class medical research/university system is also located in the region, which will facilitate the subsequent use of the air quality data in studies of PM2.5 health effects.

160

Air Cooling Technology for Power Electronic Thermal Control  

Broader source: Energy.gov (indexed) [DOE]

Characterization Platform * Air flow rate control * High accuracy heat transfer measurement * Velocity field characterization * Automated control and data acquisition...

Note: This page contains sample records for the topic "upper air measurements" 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

Air Corrosivity in U.S. Outdoor-Air-Cooled Data Centers is Similar to That  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Air Corrosivity in U.S. Outdoor-Air-Cooled Data Centers is Similar to That Air Corrosivity in U.S. Outdoor-Air-Cooled Data Centers is Similar to That in Conventional Data Centers Title Air Corrosivity in U.S. Outdoor-Air-Cooled Data Centers is Similar to That in Conventional Data Centers Publication Type Report LBNL Report Number LBNL-4951E Year of Publication 2011 Authors Coles, Henry C., Tae Won Han, Phillip N. Price, Ashok J. Gadgil, and William F. Tschudi Date Published 03/2011 Abstract There is a concern that environmental-contamination caused corrosion may negatively affect Information Technology (IT) equipment reliability. Nineteen data centers in the United States and two in India were evaluated using Corrosion Classification Coupons (CCC) to assess environmental air quality as it may relate IT equipment reliability. The data centers were of two basic types: "closed" and outside-air cooled. A closed data center provides cool air to the IT equipment using air conditioning in which only a small percentage of the recirculation air is "make-up" air continuously supplied from outside to meet human health requirements. An outside-air cooled data center uses outside air directly as the primary source for IT equipment cooling. Corrosion measuring coupons containing copper and silver metal strips were placed in both "closed" and outside-air cooled data centers. The coupons were placed at each data center (closed and outside-air cooled types) with the location categorized into three groups:

162

Experimental measurements and modeling prediction of flammability limits of binary hydrocarbon mixtures  

E-Print Network [OSTI]

of methane in air using thermal criterion?????..50 4.8 Determination of LFL of ethylene in air using thermal criterion???...??..51 4.9 Lower flammability limits of methane and n-butane mixtures in air at standard conditions...????????????????????..56 4.14 Upper flammability limits of methane and n-butane mixtures in air at standard conditions?????????????..???????57 4.15 Upper flammability limits of methane and ethylene mixtures in air at standard conditions...

Zhao, Fuman

2009-05-15T23:59:59.000Z

163

Air Leakage of Furnaces and Air Handlers  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Air Leakage of Furnaces and Air Handlers Air Leakage of Furnaces and Air Handlers Title Air Leakage of Furnaces and Air Handlers Publication Type Journal Article LBNL Report Number LBNL-5553E Year of Publication 2010 Authors Walker, Iain S., Mile Lubliner, Darryl J. Dickerhoff, and William W. Delp Journal 2010 ACEEE Summer Study on Energy Efficiency in Buildings The Climate for efficiency is now Date Published 08/2010 Abstract In recent years, great strides have been made in reducing air leakage in residential and to a lesser extent small commercial forced air duct systems. Several authorities have introduced low leakage limits for thermal distribution systems; for example, the State of California Energy Code for Buildings gives credit for systems that leak less than 6% of the total air flow at 25 Pa.

164

RESIDENTIAL LOCATION CHOICE AND TRAVEL BEHAVIOR: IMPLICATIONS FOR AIR QUALITY  

E-Print Network [OSTI]

RESIDENTIAL LOCATION CHOICE AND TRAVEL BEHAVIOR: IMPLICATIONS FOR AIR QUALITY UC Davis-Caltrans Air Avenue Davis, CA 95616 Prepared for The California Department of Transportation Mike Brady, Air Quality control measure. #12;RESIDENTIAL LOCATION CHOICE AND TRAVEL BEHAVIOR: IMPLICATIONS FOR AIR QUALITY

Levinson, David M.

165

Global empirical wind model for the upper mesosphere/lower thermosphere. I. Prevailing wind  

E-Print Network [OSTI]

Global empirical wind model for the upper mesosphere/lower thermosphere. I. Prevailing wind Y. I. An updated empirical climatic zonally aver- aged prevailing wind model for the upper mesosphere/ lower of monthly mean winds from meteor radar and MF radar measurements at more than 40 stations, well distributed

Paris-Sud XI, Université de

166

Long-Term Sediment Generation Rates for the Upper Rio Chagres Basin: Implications for Panama  

E-Print Network [OSTI]

Chapter 19 Long-Term Sediment Generation Rates for the Upper Rio Chagres Basin: Implications: We measured in situ-produced cosmogenic 10 Be in 17 sand-sized sediment samples (0.25 to 0.85 mm) to estimate the rate and distribution of sediment generation in the upper Chagres watershed over the last 10

Nichols, Kyle K.

167

Metal-Air Batteries  

SciTech Connect (OSTI)

Metal-air batteries have much higher specific energies than most currently available primary and rechargeable batteries. Recent advances in electrode materials and electrolytes, as well as new designs on metal-air batteries, have attracted intensive effort in recent years, especially in the development of lithium-air batteries. The general principle in metal-air batteries will be reviewed in this chapter. The materials, preparation methods, and performances of metal-air batteries will be discussed. Two main metal-air batteries, Zn-air and Li-air batteries will be discussed in detail. Other type of metal-air batteries will also be described.

Zhang, Jiguang; Bruce, Peter G.; Zhang, Gregory

2011-08-01T23:59:59.000Z

168

Altering heavy vehicle air suspension dynamic forces by modifying air lines  

Science Journals Connector (OSTI)

An experimental programme in 2007 used three air-suspended Heavy Vehicles (HVs) travelling over typical urban roads to determine whether dynamic axle-to-chassis forces could be reduced by using larger-than-standard diameter longitudinal air lines. This paper presents methodology, interim analysis and partial results from that program. Alterations to dynamic measures derived from axle-to-chassis forces with standard-sized longitudinal air lines vs. larger longitudinal air lines fitted are presented and discussed.

Lloyd Davis; Jonathan Bunker

2011-01-01T23:59:59.000Z

169

A New Method to Reconstruct the Energy and Determine the Composition of Cosmic Rays from the Measurement of Cherenkov Light and Particle Densities in Extended Air Showers  

E-Print Network [OSTI]

A Monte-Carlo study is presented using ground based measurements of the electromagnetic part of showers initiated in the atmosphere by high energetic cosmic rays to reconstruct energy and mass of primary particles with energies above 300 TeV. With two detector arrays measuring Cherenkov light and particle densities as realized in the HEGRA experiment shower properties are reconstructed and interpreted to determine energy and energy per nucleon of the primary particle.

A. Lindner

1996-11-21T23:59:59.000Z

170

Air Pollution Control  

Science Journals Connector (OSTI)

Petroleum and chemical processes are responsible for many emissions both into the air. Most relevant emissions into the air are nitrous oxides (NOx), sulfur oxides ... compounds (VOC).The major cause of all air pollution

Alireza Bahadori

2014-01-01T23:59:59.000Z

171

Hickam Air Force Base  

Broader source: Energy.gov [DOE]

Hickam Air Force Base spans 2,850 acres in Honolulu, Hawaii. The military base is home to the 15th Airlift Wing, the Hawaii Air National Guard, and the Pacific Air Forces headquarters.

172

OLYMPIC AIR QUALITY QUESTIONABLE  

Science Journals Connector (OSTI)

OLYMPIC AIR QUALITY QUESTIONABLE ... Athletes GOING FOR GOLD worry about Beijing’s air ... Atmospheric chemists say the air quality during the Beijing Games literally rests on which direction the winds blow. ...

RACHEL PETKEWICH

2008-07-28T23:59:59.000Z

173

Air Quality and Pollution  

Science Journals Connector (OSTI)

Air quality refers to the physical, chemical, and biological characteristics of air, both in outside space and in enclosed ... other non?industrial working places, and residencies. Air pollution is the abnormal ...

Zoran Marmut

2008-01-01T23:59:59.000Z

174

Safeguarding indoor air quality  

SciTech Connect (OSTI)

California has created and implemented the first state program devoted exclusively to the investigation of nonindustrial indoor air quality. The program is responsible for promoting and conducting research on the determining factors of healthful indoor environments and is structured to obtain information about emission sources, ventilation effects, indoor concentrations, human activity patterns, exposures, health risks, control measures and public policy options. Data are gathered by a variety of methods, including research conducted by staff members, review of the available scientific literature, participation in technical meetings, contractual agreements with outside agencies, cooperative research projects with other groups and consultation with experts. 23 references, 1 figure, 1 table.

Sexton, K.; Wesolowski, J.J.

1985-01-01T23:59:59.000Z

175

Industrial Compressed Air System Energy Efficiency Guidebook.  

SciTech Connect (OSTI)

Energy efficient design, operation and maintenance of compressed air systems in industrial plants can provide substantial reductions in electric power and other operational costs. This guidebook will help identify cost effective, energy efficiency opportunities in compressed air system design, re-design, operation and maintenance. The guidebook provides: (1) a broad overview of industrial compressed air systems, (2) methods for estimating compressed air consumption and projected air savings, (3) a description of applicable, generic energy conservation measures, and, (4) a review of some compressed air system demonstration projects that have taken place over the last two years. The primary audience for this guidebook includes plant maintenance supervisors, plant engineers, plant managers and others interested in energy management of industrial compressed air systems.

United States. Bonneville Power Administration.

1993-12-01T23:59:59.000Z

176

Primary zone air proportioner  

DOE Patents [OSTI]

An air proportioner is provided for a liquid hydrocarbon fueled gas turbine of the type which is convertible to oil gas fuel and to coal gas fuel. The turbine includes a shell for enclosing the turbine, an air duct for venting air in said shell to a gasifier, and a fuel injector for injecting gasified fuel into the turbine. The air proportioner comprises a second air duct for venting air from the air duct for mixing with fuel from the gasifier. The air can be directly injected into the gas combustion basket along with the fuel from the injector or premixed with fuel from the gasifier prior to injection by the fuel injector.

Cleary, Edward N. G. (San Diego, CA)

1982-10-12T23:59:59.000Z

177

E-Print Network 3.0 - air study 1999-2001 Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

& Department of Mechanical and Aerospace Engineering, University of Dayton Collection: Energy Storage, Conversion and Utilization 33 inAir: Measuring and Visualizing Indoor Air...

178

E-Print Network 3.0 - air system workshop Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Storage, Conversion and Utilization 11 inAir: Measuring and Visualizing Indoor Air Quality Sunyoung Kim & Eric Paulos Summary: visualization to be more user-intuitive. SYSTEM...

179

The role of air quality monitoring networks in supporting health research and legislation  

Science Journals Connector (OSTI)

Pollutants in the ambient air result in personal exposure, target tissue exposure and health responses. Ambient air quality measurement using various indicators is important in exposure assessment. Establishment ...

Harish Phuleria

2013-08-01T23:59:59.000Z

180

UW-Madison Youth Programs Air Quality Guidelines  

E-Print Network [OSTI]

of Public Health Engineering -- 3 0.0 CEE 423 Air Pollution Effects, Measurement and Control Senior Status 3-Gel Chemistry Instructor consent 1-3 0.0 CEE 609 Special Topics: The Chemistry of Air Pollution Instructor

Wisconsin at Madison, University of

Note: This page contains sample records for the topic "upper air measurements" 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

Distributed GIS for Monitoring and Modeling Urban Air Quality  

E-Print Network [OSTI]

The progress of technology has made the measurement of air quality and the simulation of complex air pollution models both feasible and cost-effective. However, there is a long way to go in terms of facilitating widespread ...

Yeang, Chen-Hsiang, 1969-

182

Paleotectonic controls on deposition of upper Upper Jurassic La Casita Formation, east-central Chihuahua, Mexico  

SciTech Connect (OSTI)

Surface mapping of the basal Mesozoic La Casita Formation (upper Upper Jurassic) in east-central Chihuahua, Mexico, indicates initial Mesozoic sedimentation occurred in a segmented, interconnected subbasin of the Chihuahua trough. La Casite Formation (1200 m thick) is a tectonostratigraphic unit resting with angular unconformity on the Lower Permian Plomosas Formation. It consists primarily of siliciclastic material with sporadic interbedded limestones. The dominant lithofacies, approximately 1000 m thick, consists of turbiditic sandstone units (10-20 m) alternating with thicker, monotonous shale sequences. In the mapped area (approximately 30 km/sup 2/), flute cast measurements indicate flows from both the northeast (N20/degree/E) and southwest (S58/degree/W). Turbiditic sandstone units appear to pinch out and/or interfinger as they extend from the north and south into the central portion of the area. The initial opening of the Chihuahua trough is often associated with Late Jurassic block faulting, related to development of the ancestral Gulf of Mexico. Synrift depositional sequences of a similar age have been described in southern Coahuila, northern Zacatecas, and western Chiapas, Mexico. The subbasin (graben ) examined here may be ascribed a paleoposition near the western edge of the early Chihuahua trough. The western boundary of the early trough may have comprised a series of these subbasins, forming a cuspate or serrated coastline. Late Jurassic ammonites recovered from this and other localities along the length of the Chihuahua trough suggest that the subbasins were interconnected by means of an eastern continuous seaway.

Roberts, D.C.

1989-03-01T23:59:59.000Z

183

Air Pollution Spring 2010  

E-Print Network [OSTI]

and control. 6. Examine regional and global air pollution issues. Prerequisite: CHEM 113 and (MATH 261 or MATHATS 555 Air Pollution Spring 2010 T Th 11:00 ­ 12:15, NESB 101 Instructor: Prof. Sonia Kreidenweis an understanding of types and sources of air pollution. 2. Examine concentrations of air pollutants

184

Upper White River Watershed Alliance Upper White River Watershed Alliance (UWRWA)  

E-Print Network [OSTI]

Upper White River Watershed Alliance Upper White River Watershed Alliance (UWRWA) P.O. Box 2065 integrity of the White River ecosystem. To successfully accomplish the vision of UWRWA, a 16-county was formed. It exists to improve and protect water quality on a watershed basis in the larger Upper White

185

National Emission Standards for Hazardous Air Pollutants for Major Sources: Industrial, Commercial, and Institutional Boilers; Guidance for Calculating Emission Credits Resulting from Implementation of Energy Conservation Measures  

SciTech Connect (OSTI)

The purpose of this document is to provide guidance for developing a consistent approach to documenting efficiency credits generated from energy conservation measures in the Implementation Plan for boilers covered by the Boiler MACT rule (i.e., subpart DDDDD of CFR part 63). This document divides Boiler System conservation opportunities into four functional areas: 1) the boiler itself, 2) the condensate recovery system, 3) the distribution system, and 4) the end uses of the steam. This document provides technical information for documenting emissions credits proposed in the Implementation Plan for functional areas 2) though 4). This document does not include efficiency improvements related to the Boiler tune-ups.

Cox, Daryl [ORNL; Papar, Riyaz [Hudson Technologies; Wright, Dr. Anthony [ALW Consulting

2012-07-01T23:59:59.000Z

186

Source Term Estimation of Radioxenon Released from the Fukushima Dai-ichi Nuclear Reactors Using Measured Air Concentrations and Atmospheric Transport Modeling  

SciTech Connect (OSTI)

Systems designed to monitor airborne radionuclides released from underground nuclear explosions detected radioactive fallout from the Fukushima Daiichi nuclear accident in March 2011. Atmospheric transport modeling (ATM) of plumes of noble gases and particulates were performed soon after the accident to determine plausible detection locations of any radioactive releases to the atmosphere. We combine sampling data from multiple International Modeling System (IMS) locations in a new way to estimate the magnitude and time sequence of the releases. Dilution factors from the modeled plume at five different detection locations were combined with 57 atmospheric concentration measurements of 133-Xe taken from March 18 to March 23 to estimate the source term. This approach estimates that 59% of the 1.24×1019 Bq of 133-Xe present in the reactors at the time of the earthquake was released to the atmosphere over a three day period. Source term estimates from combinations of detection sites have lower spread than estimates based on measurements at single detection sites. Sensitivity cases based on data from four or more detection locations bound the source term between 35% and 255% of available xenon inventory.

Eslinger, Paul W. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Biegalski, S. [Univ. of Texas at Austin, TX (United States); Bowyer, Ted W. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Cooper, Matthew W. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Haas, Derek A. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Hayes, James C. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Hoffman, Ian [Radiation Protection Bureau, Health Canada, Ottawa, ON (Canada); Korpach, E. [Radiation Protection Bureau, Health Canada, Ottawa, ON (Canada); Yi, Jing [Radiation Protection Bureau, Health Canada, Ottawa, ON (Canada); Miley, Harry S. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Rishel, Jeremy P. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Ungar, R. Kurt [Radiation Protection Bureau, Health Canada, Ottawa, ON (Canada); White, Brian [Radiation Protection Bureau, Health Canada, Ottawa, ON (Canada); Woods, Vincent T. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

2014-01-01T23:59:59.000Z

187

Optimising the Fresh Air Economiser  

E-Print Network [OSTI]

Optimising the Fresh Air Economiser Rob Bishop Technical Director Energy Solutions Ltd. Wellington New Zealand ABSTRACT This paper proposes using measurements of CO2 to infer the amount of Outside Air (OA) ventilation delivered to a... and the number of occupants only, but since 2004 has also included a value based on the floor area of the space. In New Zealand, the ventilation code is based on ASHRAE Standard 62:1989 (with local amendments), and has not been updated to include the area...

Biship, R.

2013-01-01T23:59:59.000Z

188

Demonstration abstract: airfeed: indoor real time interactive air quality monitoring system  

Science Journals Connector (OSTI)

Solutions to outdoor air pollution require societal changes; however, we focus on indoor home air quality to allow for individual control over the breathing environment. We present AirFeed: a real time air quality monitoring system that provides measurements ... Keywords: air quality, human activity, monitoring, real time

Kyeong T. Min, Andrzej Forys, Thomas Schmid

2014-04-01T23:59:59.000Z

189

Economizer Control Using Mixed Air Enthalpy  

E-Print Network [OSTI]

Enthalpy economizer can theoretically save more energy than temperature based economizer. However, the requirement of outdoor air humidity measurement in the traditional enthalpy economizer control made it impossible. A novel control sequence using...

Feng, J.; Liu, M.; Pang, W.

2007-01-01T23:59:59.000Z

190

NETL: Ambient Monitoring - Air Quality Database and Analytical Tool  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Database and Analytical Tool for Air Quality in the Upper Ohio River Valley Database and Analytical Tool for Air Quality in the Upper Ohio River Valley Advanced Technology Systems, Inc. with Ohio University and Texas A&M University - Kingsville as subcontractors, will develop a state-of-the-art, scalable and robust computer application for NETL to manage the extensive data sets resulting from the DOE-sponsored ambient air monitoring programs in the upper Ohio River valley region. Efforts will be made to include, to the greatest extent possible, ambient air data collected by other agencies in the upper Ohio River valley region, such as U.S. EPA, Pennsylvania Department of Environmental Protection (PA-DEP), West Virginia Division of Environmental Protection (WV-DEP), Ohio EPA, and the Allegheny County Health Department (ACHD). Although emphasis will be placed on data collected in the upper Ohio River valley region, the computer application developed under this Agreement will be designed, to the greatest extent possible, to access data collected at NETL-sponsored ambient air monitoring sites outside the region, such as sites operated by the Tennessee Valley Authority in the Great Smoky Mountains (under DOE Interagency Agreement DE-AI26-98FT40406) and by Southern Research Institute in North Birmingham, AL (under DOE Cooperative Agreement DE-FC26-00NT40770). The data base and analytical tool development effort will also be coordinated, to the greatest extent possible, with similar tools being developed for use by U.S. EPA. This will ensure that the database and analytical tools produced under this Agreement will be readily accessible to a wide variety of stakeholders.

191

Upper Scioto Valley School | Open Energy Information  

Open Energy Info (EERE)

Valley School Valley School Jump to: navigation, search Name Upper Scioto Valley School Facility Upper Scioto Valley School Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Upper Scioto Valley Schools Energy Purchaser Upper Scioto Valley Schools Location McGuffey OH Coordinates 40.691542°, -83.786353° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.691542,"lon":-83.786353,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

192

Tensor rank : some lower and upper bounds  

E-Print Network [OSTI]

The results of Strassen [25] and Raz [19] show that good enough tensor rank lower bounds have implications for algebraic circuit/formula lower bounds. We explore tensor rank lower and upper bounds, focusing on explicit ...

Forbes, Michael Andrew

2011-01-01T23:59:59.000Z

193

Residential Forced Air System Cabinet Leakage and Blower Performance  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Residential Forced Air System Cabinet Leakage and Blower Performance Residential Forced Air System Cabinet Leakage and Blower Performance Title Residential Forced Air System Cabinet Leakage and Blower Performance Publication Type Report LBNL Report Number LBNL-3383E Year of Publication 2010 Authors Walker, Iain S., Darryl J. Dickerhoff, and William W. Delp Publisher Lawrence Berkeley National Laboratory City Berkeley Keywords air flow measurement, air leakage, blower power measurement, blowers, energy performance of buildings group, forced air systems, furnaces, indoor environment department, other, public interest energy research (pier) program, residential hvac Abstract This project evaluated the air leakage and electric power consumption of Residential HVAC components, with a particular focus on air leakage of furnace cabinets. Laboratory testing of HVAC components indicated that air leakage can be significant and highly variable from unit to unit - indicating the need for a standard test method and specifying maximum allowable air leakage in California State energy codes. To further this effort, this project provided technical assistance for the development of a national standard for Residential HVAC equipment air leakage. This standard is being developed by ASHRAE and is called "ASHRAE Standard 193P - Method of test for Determining the Air Leakage Rate of HVAC Equipment". The final part of this project evaluated techniques for measurement of furnace blower power consumption. A draft test procedure for power consumption was developed in collaboration with the Canadian General Standards Board: CSA 823 "Performance Standard for air handlers in residential space conditioning systems".

194

Healthy Air Act (Maryland)  

Broader source: Energy.gov [DOE]

The Maryland Healthy Air Act was developed with the purpose of bringing Maryland into attainment with the National Ambient Air Quality Standards (NAAQS) for ozone and fine particulate matter by the...

195

Air and Water Pollution  

Science Journals Connector (OSTI)

Air Pollution.... Many pollutants enter our bodies through the air we breathe at 13,000 l/day ... to quantitatively understand the basic environmental physics of pollution. This chapter covers the foll...

David Hafemeister

2014-01-01T23:59:59.000Z

196

Aesculap, Inc. Air Products  

E-Print Network [OSTI]

Aesculap, Inc. Air Products Air Products Foundation Alaric Compliance Services, LLC Alvin H. Butz & Herger, Inc. Sodexo Campus Services Sodexo Inc. and Affiliates Stupp Bros., Inc. Sugarbush Products, Inc

Napier, Terrence

197

Minimize Compressed Air Leaks  

Broader source: Energy.gov [DOE]

This tip sheet outlines a strategy for compressed air leak detection and provides a formula for cost savings calculations.

198

Air Products effective way  

E-Print Network [OSTI]

PE O A e s a b O T A O ENNST Overview Air Products effective way standard me Departm Shipping has recently y of shipping eans. Air Pro ontainer that es of this pro onduct mark eep accelera eep the cost tilize widely a earch and m m visited Air er needs wer model was cr m approache ms

Demirel, Melik C.

199

Evaluating the Vertical Distribution of Ozone and Its Relationship to Pollution Events in Air Quality Models Using Satellite Data  

Science Journals Connector (OSTI)

Most regional scale models that are used for air quality forecasts and ozone source attribution do not adequately capture the distribution of ozone in the mid- and upper troposphere, but it is unclear how this...

Jessica L. Neu; Gregory Osterman…

2014-01-01T23:59:59.000Z

200

GIZ Sourcebook Module 5a: Air Quality | Open Energy Information  

Open Energy Info (EERE)

and their advisers in developing countries to determine the best measures to abate air pollution with limited information. The material presented draws upon knowledge gained...

Note: This page contains sample records for the topic "upper air measurements" 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

Intrinsic Chirality and Prochirality at Air/R-(+)- and S-(-)...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

at AirR-(+)- and S-(-)-Limonene Interfaces: Spectral Signatures with Interference Chiral Abstract: We report in this work detailed measurements on the chiral and achiral...

202

EML Surface Air Sampling Program, 1989 data  

SciTech Connect (OSTI)

Measurements of the concentrations of specific atmospheric radionuclides in air filter samples collected for the Environmental Measurements Laboratory's Surface Air Sampling Program (SASP) during 1989 indicate that anthropogenic radionuclides, in both hemispheres, were at or below the lower limits of detection for the analytical and sampling techniques that were used to measure them. During 1989, the occasional detection of {sup 137}Cs in some air filter samples may have resulted from resuspension of previously deposited debris. The naturally occurring radioisotopes that we measure, {sup 7}Be and {sup 210}Pb, continue to be detected in most air filter samples. The 1989 annual mean concentrations of {sup 7}Be at many of the sites were lower than those previously reported during the last decade. Possible changes in the atmospheric production of {sup 7}Be, variations in atmospheric circulation and precipitation patterns, as well as modifications to our sampling procedure many all have contributed to this observed trend. Short-term variations in the concentrations of {sup 7}Be and {sup 210}Pb continued to be observed at many sites at which weekly air filter samples were analyzed. These short-term fluctuations probably resulted from variations in meteorological factors. The data from our quality control samples indicate that the reliability of the air filter measurements are acceptable for their intended application.

Larsen, R.J.; Sanderson, C.G.

1991-08-01T23:59:59.000Z

203

EML Surface Air Sampling Program, 1989 data  

SciTech Connect (OSTI)

Measurements of the concentrations of specific atmospheric radionuclides in air filter samples collected for the Environmental Measurements Laboratory`s Surface Air Sampling Program (SASP) during 1989 indicate that anthropogenic radionuclides, in both hemispheres, were at or below the lower limits of detection for the analytical and sampling techniques that were used to measure them. During 1989, the occasional detection of {sup 137}Cs in some air filter samples may have resulted from resuspension of previously deposited debris. The naturally occurring radioisotopes that we measure, {sup 7}Be and {sup 210}Pb, continue to be detected in most air filter samples. The 1989 annual mean concentrations of {sup 7}Be at many of the sites were lower than those previously reported during the last decade. Possible changes in the atmospheric production of {sup 7}Be, variations in atmospheric circulation and precipitation patterns, as well as modifications to our sampling procedure many all have contributed to this observed trend. Short-term variations in the concentrations of {sup 7}Be and {sup 210}Pb continued to be observed at many sites at which weekly air filter samples were analyzed. These short-term fluctuations probably resulted from variations in meteorological factors. The data from our quality control samples indicate that the reliability of the air filter measurements are acceptable for their intended application.

Larsen, R.J.; Sanderson, C.G.

1991-08-01T23:59:59.000Z

204

High Energy Efficiency Air Conditioning  

SciTech Connect (OSTI)

This project determined the performance of a new high efficiency refrigerant, Ikon B, in a residential air conditioner designed to use R-22. The refrigerant R-22, used in residential and small commercial air conditioners, is being phased out of production in developed countries beginning this year because of concerns regarding its ozone depletion potential. Although a replacement refrigerant, R-410A, is available, it operates at much higher pressure than R-22 and requires new equipment. R-22 air conditioners will continue to be in use for many years to come. Air conditioning is a large part of expensive summer peak power use in many parts of the U.S. Previous testing and computer simulations of Ikon B indicated that it would have 20 - 25% higher coefficient of performance (COP, the amount of cooling obtained per energy used) than R-22 in an air-cooled air conditioner. In this project, a typical new R-22 residential air conditioner was obtained, installed in a large environmental chamber, instrumented, and run both with its original charge of R-22 and then with Ikon B. In the environmental chamber, controlled temperature and humidity could be maintained to obtain repeatable and comparable energy use results. Tests with Ikon B included runs with and without a power controller, and an extended run for several months with subsequent analyses to check compatibility of Ikon B with the air conditioner materials and lubricant. Baseline energy use of the air conditioner with its original R-22 charge was measured at 90 deg F and 100 deg F. After changeover to Ikon B and a larger expansion orifice, energy use was measured at 90 deg F and 100 deg F. Ikon B proved to have about 19% higher COP at 90 deg F and about 26% higher COP at 100 deg F versus R-22. Ikon B had about 20% lower cooling capacity at 90 deg F and about 17% lower cooling capacity at 100 deg F versus R-22 in this system. All results over multiple runs were within 1% relative standard deviation (RSD). All of these values agree well with previous results and computer simulations of Ikon B performance versus R-22. The lower cooling capacity of Ikon B is not a concern unless a particular air conditioner is near its maximum cooling capacity in application. Typically, oversized A/C systems are installed by contractors to cover contingencies. In the extended run with Ikon B, which lasted about 4.5 months at 100 deg F ambient temperature and 68% compressor on time, the air conditioner performed well with no significant loss of energy efficiency. Post-run analysis of the refrigerant, compressor lubricant oil, compressor, compressor outlet tubing, and the filter/dryer showed minor effects but nothing that was considered significant. The project was very successful. All objectives were achieved, and the performance of Ikon B indicates that it can easily be retrofitted into R-22 air conditioners to give 15 - 20% energy savings and a 1 - 3 year payback of retrofit costs depending on location and use. Ikon B has the potential to be a successful commercial product.

Edward McCullough; Patrick Dhooge; Jonathan Nimitz

2003-12-31T23:59:59.000Z

205

The Effect of Reduced Evaporator Air Flow on the Performance of a Residential Central Air Conditioner  

E-Print Network [OSTI]

This paper discusses the measured degradation in performance of a residential air conditioning system operating under reduced evaporator air flow. Experiments were conducted using a R-22 three-ton split-type cooling system with a short-tube orifice...

Palani, M.; O'Neal, D.; Haberl, J.

206

The Many Faces of a Compressed Air Audit  

E-Print Network [OSTI]

cost of audit with 1-2 year pay back. The same scope as Strategic Audit, but with a 3-8 day evaluation plus trended measurement needed for air systems with multiple compressor sites, centrifugal units, or for metering for utility funding... the largest electric load may be air compressors. 1 Summary Compressed air systems represent a unique opportunity for the development of energy savings programs. Compressed air is one of the largest energy users in industrial plants and represents a...

Kemp, H. L.

2006-01-01T23:59:59.000Z

207

Determining the Right Air Quality for Your Compressed Air System  

Broader source: Energy.gov [DOE]

This tip sheet outlines the main factors for determining the right air quality for compressed air systems.

208

Thin Air Breathing  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Thin Air Breathing Thin Air Breathing Name: Amy Location: N/A Country: N/A Date: N/A Question: Why is it hard to breathe in thin air? What health dangers do mountain climbers face at high altitudes? Replies: Among the obvious dangers of losing ones footing, the oxygen available in the air is considerable less at higher altitudes. If I recall correctly, 21% of the atmosphere at standard temperature and pressure at sea level is composed of oxygen. This is less at higher altitudes. One can lose consciousness and even die in an oxygen deficient environment with changes from oxygen content to lower than 19.5%. This can unfortunate effect can occur within minutes. Dr. Myron The air is not really thin at high altitudes. The problem is that air pressure is lower. As altitude increases, air pressure decreases. In order for your lungs to fill with air, the air pressure in your lungs has to be less than the pressure of the air outside your lungs. Air moves from areas of higher pressure to lower pressure. As your diaphragm (the muscle that separates your chest cavity from your abdominal cavity) moves downward, the size of your chest cavity increases. This decreases the pressure in your chest and air flows in. When the diaphragm is up, it puts pressure on the chest cavity and the pressure in the lungs is greater than outside the lungs. Air flows out. This is an example of Boyle's Law. The movement of the diaphragm is controlled by the brainstem. Anyway-the reason that it is harder for some people to breathe at higher altitudes is that the air pressure differences aren't as great between the inside of the lungs and outside.

209

Evaluation of AirGIS: a GIS-based air pollution and human exposure modelling system  

Science Journals Connector (OSTI)

This study describes in brief the latest extensions of the Danish Geographic Information System (GIS)-based air pollution and human exposure modelling system (AirGIS), which has been developed in Denmark since 2001 and gives results of an evaluation with measured air pollution data. The system shows, in general, a good performance for both long-term averages (annual and monthly averages), short-term averages (hourly and daily) as well as when reproducing spatial variation in air pollution concentrations. Some shortcomings and future perspectives of the system are discussed too.

Matthias Ketzel; Ruwim Berkowicz; Martin Hvidberg; Steen Solvang Jensen; Ole Raaschou-Nielsen

2011-01-01T23:59:59.000Z

210

A Method to Estimate the Chronic Health Impact of Air Pollutants in U.S.  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

A Method to Estimate the Chronic Health Impact of Air Pollutants in U.S. A Method to Estimate the Chronic Health Impact of Air Pollutants in U.S. Residences Title A Method to Estimate the Chronic Health Impact of Air Pollutants in U.S. Residences Publication Type Journal Article Refereed Designation Refereed LBNL Report Number LBNL-5267E Year of Publication 2011 Authors Logue, Jennifer M., Phillip N. Price, Max H. Sherman, and Brett C. Singer Journal Environmental Health Perspectives Volume 120 Start Page 216 Pagination 216-222 Date Published 11/2011 Keywords air toxics, criteria pollutants, DALYs, exposure, impact assessment, indoor air pollutants, indoor air quality Abstract Background: Indoor air pollutants (IAPs) cause multiple health impacts. Prioritizing mitigation options that differentially impact individual pollutants and comparing IAPs to other environmental health hazards requires a common metric of harm. Objectives: The objective was to demonstrate a methodology to quantify and compare health impacts from IAPs. The methodology is needed to assess population health impacts of large-scale initiatives - including energy efficiency upgrades and ventilation standards - that affect indoor air quality (IAQ). Methods: Available disease incidence and disease impact models for specific pollutant-disease combinations were synthesized with data on measured concentrations to estimate the chronic heath impact, in Disability Adjusted Life Years (DALYs), due to inhalation of a subset of IAPs in U.S. residences. Model results were compared to independent estimates of DALYs lost due to disease. Results: PM2.5, acrolein, and formaldehyde accounted for the vast majority of DALY losses caused by IAPs considered in this analysis, with impacts on par or greater than estimates for secondhand tobacco smoke and radon. Confidence intervals of DALYs lost derived from epidemiology-based response functions are tighter than those derived from toxicology-based, inter-species extrapolations. Statistics on disease incidence in the US indicate that the upper-bound confidence interval for aggregate IAP harm is implausibly high. Conclusions: The demonstrated approach may be used to assess regional and national initiatives that impact IAQ at the population level. Cumulative health impacts from inhalation in U.S. residences of the IAPs assessed in this study are estimated at 400-1100 DALYs annually per 100,000 people.

211

Air Quality Responses to Changes in Black Carbon and Nitrogen Oxide Emissions  

E-Print Network [OSTI]

Measurements of total nitrate and ammonia were made during the Pittsburgh Air Quality Study using a steam

Millstein, Dev

2009-01-01T23:59:59.000Z

212

Survey of Techniques for Measuring Currents near the Ocean Surface  

Science Journals Connector (OSTI)

Air-sea interaction studies of momentum, heat, and salt fluxes in the upper ocean require detailed knowledge of the mean and ... motions, however, make the slowly varying mean current component difficult to measu...

J. R. McCullough

1980-01-01T23:59:59.000Z

213

Environmental Quality: Air (Louisiana)  

Broader source: Energy.gov [DOE]

The Department of Environmental Quality regulates air quality in Louisiana. The Department has an established a fee system for funding the monitoring, investigation and other activities required...

214

Air-Quality Regulations  

Science Journals Connector (OSTI)

n...Federal, state and/or local regulations constructed for the purpose of protecting air quality, e.g., low volatile organic compounds...

Jan W. Gooch

2011-01-01T23:59:59.000Z

215

Air-quality regulations  

Science Journals Connector (OSTI)

n....Federal, state and/or local regulations constructed for the purpose of protecting air quality, e.g., low volatile organic compounds...

2007-01-01T23:59:59.000Z

216

Upper San Juan Basin Biological Assessment  

E-Print Network [OSTI]

the biological assessment. The Colorado Natural Heritage Program began its research by updating its BiologicalUpper San Juan Basin Biological Assessment Colorado State University 8002 Campus Delivery Fort Collins, CO 80523-8002 June 2003 Colorado Natural Heritage Program #12;Southwest Land Alliance Pagosa

217

Total Particulate Matter Air Sampling Data (TEOM) from Los Alamos National Laboratory  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

LANL measures the total particulate mass concentration in the air on a routine basis as well as during incidents that may affect ambient air. The collected data is added to the Air Quality Index (AQI). AQI is an index for reporting daily air quality. It tells you how clean or polluted your air is, and what associated health effects might be a concern for you. The AQI focuses on health effects you may experience within a few hours or days after breathing polluted air. EPA calculates the AQI for five major air pollutants regulated by the Clean Air Act.

218

The curvature of the wind profile as a factor in the formation of clear-air turbulence  

E-Print Network [OSTI]

Establishment Technical Report No. 68096, 38 pp. Corby, G. A. , and J. S. Sawyer, 1958: The air flow over a ridge the effects of the upper boundary and high level conditions. Quart. J. ~Ro . Meteor. Soc , 84, 5-37. G. A. , and C. E. Wallington3 1956: Air...

Possiel, Norman Charles

2012-06-07T23:59:59.000Z

219

Decadal variations of the relationship between the summer North Atlantic Oscillation and middle East Asian air temperature  

E-Print Network [OSTI]

East Asian air temperature Jianqi Sun,1 Huijun Wang,1 and Wei Yuan2 Received 20 November 2007; revised., 1998]. In turn, it affects upper ocean currents, distribution of sea surface temperature, and strength the summer (July­September) North Atlantic Oscillation (SNAO) and simultaneous East Asian air temperature

220

International MODIS and AIRS processing package: AIRS products and applications  

E-Print Network [OSTI]

International MODIS and AIRS processing package: AIRS products and applications Elisabeth Weisz presented and discussed in this paper demonstrate that the IMAPP AIRS retrieval product is rigorously parameters from the operational AIRS L2 product and data from other instruments. Keywords: AIRS, IMAPP

Li, Jun

Note: This page contains sample records for the topic "upper air measurements" 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

Clean air act and National Ambient Air Quality Standards (NAAQS)  

E-Print Network [OSTI]

Clean air act and National Ambient Air Quality Standards (NAAQS) Ozone: Sources/Environmental Effects Particulates (PM): Sources/Environmental Effects #12;National Ambient Air Quality Standards (NAAQS) The Clean Air Act requires EPA to set National Ambient Air Quality Standards for pollutants considered

Weber, Rodney

222

Performance of Supply Airflow Entrainment for Particles in an Underfloor Air Distribution System  

E-Print Network [OSTI]

air measurement campaign in Helsinki, Finland 1999?the effect of outdoor air pollution on indoor air. Atmospheric Environment [J].2001;35: 1465?77. [6] C.Y.H. Chao, M.P. Wan. Airflow and air temperature distribution in the occupied region...

Li, C.; Li, N.

2006-01-01T23:59:59.000Z

223

Automatic calibration of an ensemble for uncertainty estimation and probabilistic forecast: Application to air quality  

E-Print Network [OSTI]

: Application to air quality D. Garaud1 and V. Mallet2 Received 8 February 2011; revised 25 May 2011; accepted: Application to air quality, J. Geophys. Res., 116, D19304, doi:10.1029/2011JD015780. 1. Introduction [2] Air concentrations measures the simulations uncertainties. This approach has been applied for air quality simulations

Paris-Sud XI, Université de

224

Compressed Air System Optimization  

E-Print Network [OSTI]

Several years ago I went to a gas station and noticed that my car's tires were low on air. I saw the gas station had an air compressor, but it cost a quarter to use the compressor. I paid my quarter and used the compressor. I realized...

Aegerter, R.

225

Recirculating electric air filter  

DOE Patents [OSTI]

An electric air filter cartridge has a cylindrical inner high voltage electrode, a layer of filter material, and an outer ground electrode formed of a plurality of segments moveably connected together. The outer electrode can be easily opened to remove or insert filter material. Air flows through the two electrodes and the filter material and is exhausted from the center of the inner electrode.

Bergman, W.

1985-01-09T23:59:59.000Z

226

Portable oven air circulator  

DOE Patents [OSTI]

A portable air circulating apparatus for use in cooking ovens which is used to create air currents in the oven which transfer heat to cooking foodstuffs to promote more rapid and more uniform cooking or baking, the apparatus including a motor, fan blade and housing of metallic materials selected from a class of heat resistant materials.

Jorgensen, Jorgen A. (Bloomington, MN); Nygren, Donald W. (Minneapolis, MN)

1983-01-01T23:59:59.000Z

227

E-Print Network 3.0 - air station usa Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and WALD, Lucien. Adding virtual measuring stations to a network for urban air pollution Summary: , and WALD, Lucien. Adding virtual measuring stations to a network for...

228

Air Handling Unit Supply Air Temperature Optimization During Economizer Cycles  

E-Print Network [OSTI]

Air Handling Unit Supply Air Temperature Optimization during Economizer Cycles Gang Wang, Zhan Wang, Ke Xu and Mingsheng Liu University of Nebraska – Lincoln Omaha, Nebraska, USA ABSTRACT Most air handling units (AHUs) in commercial...

Xu, K.; Liu, M.; Wang, G.; Wang, Z.

2007-01-01T23:59:59.000Z

229

Air transducers with high acoustic impedance  

Science Journals Connector (OSTI)

High?Z air transducers evolved from several industrial transducers. These predecessors include (a) acoustic emission and angle?beam NDT contact transducers; (b) flowmeter transducers for high?pressure methane hot refinery gases and corrosive flare gases; and (c) transducer arrays for monitoring hot corrosive gases flowing at Mach 0.1 in smokestacks of ?3–13 m. This peculiar ancestry accounts for their unusual high?acoustic?impedance construction. By not employing low?Z air?backed radiating membranes transducer bandwidth response time and sensitivity are sacrificed. The solid robust construction however offers some compensating features: tolerance to wide ranges in pressure and temperature including rapid rates of change (thermal shock depressurization); corrosion resistance; operable with standard lab equipment without bias voltage; mounting options where the transducer forms part of the pressure boundary or where it is outside the pressure boundary. Clamp?on air flow applications at one bar include small wind tunnels and plastic pipes. Acoustically isolated pairs measure secondary flow components (crossflow circulation) in a plane perpendicular to the pipe axis. Flow applications include gases such as air mild steam (pending) or other hot pressurized or corrosive fluids. Air?coupled measurements of transmission characteristics of wood or other low?density solids and air?ranging are readily demonstrated with the low?Z transducers.

Lawrence C. Lynnworth

1998-01-01T23:59:59.000Z

230

Sedimentary parameters of upper Barataria Bay, Louisiana  

E-Print Network [OSTI]

upon oonditions of sedimentation is exerted by currents set in motion 'by oceanic tides. Tidal activity causes sediment to be introduced into the upper bay and controls its distribution. A modifying influence i. s exerted by the influx of fresh... Classification and Distribution of Sediment Types Anomalous Areas CONDITIONS OF SEDIMENTATION Bathymetry Signifioance of Parameter Distribution Patterns Marginal areas Central bay Marginal embayments . ~ Environments of Deposition . CONCLUSIONS...

Siegert, Rudolf B

2012-06-07T23:59:59.000Z

231

Air ejector augmented compressed air energy storage system  

DOE Patents [OSTI]

Energy is stored in slack demand periods by charging a plurality of underground reservoirs with air to the same peak storage pressure, during peak demand periods throttling the air from one storage reservoir into a gas turbine system at a constant inlet pressure until the air pressure in the reservoir falls to said constant inlet pressure, thereupon permitting air in a second reservoir to flow into said gas turbine system while drawing air from the first reservoir through a variable geometry air ejector and adjusting said variable geometry air ejector, said air flow being essentially at the constant inlet pressure of the gas turbine system.

Ahrens, Frederick W. (Naperville, IL); Kartsounes, George T. (Naperville, IL)

1980-01-01T23:59:59.000Z

232

Abatement of Air Pollution: Prohibition of Air Pollution (Connecticut)  

Broader source: Energy.gov [DOE]

All air pollution not otherwise covered by these regulations is prohibited. Stationary sources which cause air pollution must be operated in accordance with all applicable emissions standards and...

233

Air Pollution and Health Effects  

Science Journals Connector (OSTI)

The quality of the air we breathe is still a major concern to human health. Notwithstanding the air pollution mitigation efforts that have been pursued since ... be attributed to the effects of urban outdoor air

Ana Isabel Miranda; Joana Valente…

2014-01-01T23:59:59.000Z

234

Air Quality (Nova Scotia, Canada)  

Broader source: Energy.gov [DOE]

Nova Scotia Environment is responsible for monitoring the air quality in the province, as well as administering fines and permits relating to air quality. The Air Quality Regulations state...

235

Global air quality and climate  

E-Print Network [OSTI]

CRITICAL REVIEW Global air quality and climatewz Arlene M.determine regional air quality and can alter climate.to-continental scale air quality. Reducing the O 3 precursor

2012-01-01T23:59:59.000Z

236

Impact of aircraft emissions on air quality in the vicinity of airports. Volume I. Recent airport measurement programs, data analyses, and sub-model development. Final report Jan78-Jul 80  

SciTech Connect (OSTI)

This report documents the results of the Federal Aviation Administration (FAA)/Environmental Protection Agency (EPA) air quality study which has been conducted to assess the impact of aircraft emissions of carbon monoxide (CO), hydrocarbons (HC), and oxides of nitrogen (NOx) in the vicinity of airports. This assessment includes the results of recent modeling and monitoring efforts at Washington National (DCA), Los Angeles International (LAX), Dulles International (IAD), and Lakeland, Florida airports and an updated modeling of aircraft generated pollution at LAX, John F. Kennedy (JFK) and Chicago O'Hare (ORD) airports. The Airport Vicinity Air Pollution (AVAP) model which was designed for use at civil airports was used in this assessment. In addition the results of the application of the military version of the AVAP model the Air Quality Assessment Model (AQAM), are summarized.

Yamartino, R.J.; Smith, D.G.; Bremer, S.A.; Heinold, D.; Lamich, D.

1980-07-01T23:59:59.000Z

237

Air heating system  

DOE Patents [OSTI]

A self-starting, fuel-fired, air heating system including a vapor generator, a turbine, and a condenser connected in a closed circuit such that the vapor output from the vapor generator is conducted to the turbine and then to the condenser where it is condensed for return to the vapor generator. The turbine drives an air blower which passes air over the condenser for cooling the condenser. Also, a condensate pump is driven by the turbine. The disclosure is particularly concerned with the provision of heat exchanger and circuitry for cooling the condensed fluid output from the pump prior to its return to the vapor generator.

Primeau, John J. (19800 Seminole Rd., Euclid, OH 44117)

1983-03-01T23:59:59.000Z

238

Maintaining System Air Quality | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Maintaining System Air Quality Maintaining System Air Quality This tip sheet discusses how to maintain air quality in compressed air systems through proper use of equipment....

239

Compressed Air Systems | Department of Energy  

Energy Savers [EERE]

Maintenance Strategies for Compressed Air Systems Remove Condensate with Minimal Air Loss Stabilizing System Pressure Compressed Air Training Compressed Air Systems Tools...

240

Compressed Air Storage Strategies | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Storage Strategies Compressed Air Storage Strategies This tip sheet briefly discusses compressed air storage strategies. COMPRESSED AIR TIP SHEET 9 Compressed Air Storage...

Note: This page contains sample records for the topic "upper air measurements" 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.


241

HVAC Radial Air Bearing Heat Exchangers Research Project | Department of  

Broader source: Energy.gov (indexed) [DOE]

Radial Air Bearing Heat Exchangers Radial Air Bearing Heat Exchangers Research Project HVAC Radial Air Bearing Heat Exchangers Research Project The U.S. Department of Energy is currently conducting research into heating, ventilation, and air conditioning (HVAC) radial air bearing heat exchangers. Rotary air bearing heat exchanger technology simultaneously solves four long standing problems of conventional "fan-plus-finned-heat-sink" heat exchangers. Project Description This project seeks to design, fabricate, and test successive generations of prototype radial air bearing heat exchanger devices based on lessons learned and further insights into device optimization, computational fluid dynamic studies for parametric optimization and determination of scaling laws, and laboratory measurement of flow field and heat transfer

242

Sources for Pu in near surface air  

SciTech Connect (OSTI)

This paper provides evidence that most of the Pu in the near surface air today is due to resuspension. Vertical and particle size distribution in near surface air over a period of three years were measured. The seasonal variations of Pu in air and the influence of meteorological parameters on these variations are shown. Samples were taken before the Chernobyl accident in an area where only Pu fallout from the atmospheric nuclear tests of the early sixties occurs. The comparison of the behavior of Pu with other trace elements, which were also measured, showed similar behavior of Pu and elements like Ca, Ti and Fe in near surface air. This confirms that most Pu is resuspended because the main source for these elements in air is the soil surface. Resuspension factors and resuspension rate are estimated for all measured elements. A resuspension factor of 0.8 X 10(-8) m-1 and a resuspension rate of 0.09 X 10(-9) s-1 is calculated for Pu.

Hartmann, G.; Thom, C.; Baechmann, K.

1989-01-01T23:59:59.000Z

243

Air Quality Rules (North Carolina)  

Broader source: Energy.gov [DOE]

This is a comprehensive air quality rule for North Carolina that includes ambient air quality standards, emission control standards, monitoring and reporting requirements, and permitting procedures...

244

Ambient Air Quality Standards (Iowa)  

Broader source: Energy.gov [DOE]

These regulations set statewide ambient air quality standards for various contaminants. The state code follows the regulations set forth in the National Primary and Secondary Ambient Air Quality...

245

Padding with Compressed Air  

E-Print Network [OSTI]

We commonly find plants using padding to transport liquids or light solids short distances from tankers into storage tanks. Padding can wreck havoc in compressed air systems with limited storage, undersized cleanup equipment (dryers and filters...

Beals, C.

2004-01-01T23:59:59.000Z

246

Traffic air quality index  

Science Journals Connector (OSTI)

Abstract Vehicle emissions are responsible for a considerable share of urban air pollution concentrations. The traffic air quality index (TAQI) is proposed as a useful tool for evaluating air quality near roadways. The TAQI associates air quality with the equivalent emission from traffic sources and with street structure (roadway structure) as anthropogenic factors. The paper presents a method of determining the TAQI and defines the degrees of harmfulness of emitted pollution. It proposes a classification specifying a potential threat to human health based on the TAQI value and shows an example of calculating the TAQI value for real urban streets. It also considers the role that car traffic plays in creating a local UHI.

Zbigniew Bagie?ski

2015-01-01T23:59:59.000Z

247

Real-time Air Quality Monitoring Through Mobile Sensing in Metropolitan Areas  

E-Print Network [OSTI]

. General Terms Measurement, Design, Experimentation, Human Factors. Keywords Air Quality, Pollution, Urban levels in the urban and suburban settings. According to the US EPA [3], the six common air pollutants. These are called the criteria pollutants and thus are required to be measured to tell us how healthy the air

Iftode, Liviu

248

Ventilation Air Preconditioning Systems  

E-Print Network [OSTI]

Ventilation Air Preconditioning Systems Mukesh Khattar Michael J. Brandemuehl Manager, Space Conditioning and Refrigeration Associate Professor Customer Systems Group Joint Center for Energy Management Electric Power Research Institute Campus... costs, the small, modular nature of the system allows great flexibility for fitting into retrofit geometries and saves space in new construction. Moreover, a single chiller can serve multiple air-handling units-in stark contrast to packaged...

Khattar, M.; Brandemuehl, M. J.

1996-01-01T23:59:59.000Z

249

Dispersion relation for magnetosonic waves within the upper atmospheric plasma  

Science Journals Connector (OSTI)

The dispersion relation for magnetosonic waves within the upper atmospheric plasma has been derived. The result can be...

S. S. De; Bithika Ghosh; Manasi Mal; B. Ghosh

1990-01-01T23:59:59.000Z

250

Effect of Return Air Leakage on Air Conditioner Performance in Hot/Humid Climates  

E-Print Network [OSTI]

provided rebates to residential customers for purchasing high efficiency air conditioners and heat pumps. The rebates have helped increase the demand for higher efficiency air conditioning units. However, even the most efficient system will not perform... of supply ducts (Table 1). The predominance of return duct leakage over supply duct leakage confirmed the investigators' theory that installers were more careful to seal seams on supply ducts (Robison and Lambert, 1989). Table 1 - Measured Leakage...

O'Neal, D. L.; Rodriguez, A.; Davis, M.; Kondepudi, S.

1996-01-01T23:59:59.000Z

251

Air Cooling | Open Energy Information  

Open Energy Info (EERE)

Cooling Cooling Jump to: navigation, search Dictionary.png Air Cooling: Air cooling is commonly defined as rejecting heat from an object by flowing air over the surface of the object, through means of convection. Air cooling requires that the air must be cooler than the object or surface from which it is expected to remove heat. This is due to the second law of thermodynamics, which states that heat will only move spontaneously from a hot reservoir (the heat sink) to a cold reservoir (the air). Other definitions:Wikipedia Reegle Air Cooling Air Cooling Diagram of Air Cooled Condenser designed by GEA Heat Exchangers Ltd. (http://www.gea-btt.com.cn/opencms/opencms/bttc/en/Products/Air_Cooled_Condenser.html) Air cooling is limited on ambient temperatures and typically require a

252

ARM - Campaign Instrument - rad-air  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

govInstrumentsrad-air govInstrumentsrad-air Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Airborne Radiometers (RAD-AIR) Instrument Categories Radiometric, Airborne Observations Campaigns Indirect and Semi-Direct Aerosol Campaign (ISDAC) [ Download Data ] North Slope Alaska, 2008.04.01 - 2008.04.30 Routine AAF CLOWD Optical Radiative Observations (RACORO) [ Download Data ] Southern Great Plains, 2009.01.22 - 2009.06.30 Routine AAF CLOWD Optical Radiative Observations (RACORO) [ Download Data ] Southern Great Plains, 2009.01.22 - 2009.06.30 Routine AAF CLOWD Optical Radiative Observations (RACORO) [ Download Data ] Southern Great Plains, 2009.01.22 - 2009.06.30 Primary Measurements Taken The following measurements are those considered scientifically relevant.

253

A Survey: Indoor Air Quality in Schools  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 3 A Survey: Indoor Air Quality in Schools We recently undertook a survey and critical review of the published literature on indoor air quality (IAQ), ventilation, and IAQ- and building-related health problems in schools, particularly those in the state of California. The survey's objectives included identifying the most commonly reported building-related health symptoms involving schools, and assembling and evaluating existing measurement data on key indoor air pollutants most likely to be related to these symptoms. The review also summarizes existing measurements of ventilation rates in schools and information on the causes of IAQ and health problems in schools. Most of the literature we reviewed (more than 450 articles and reports) dealt with complaint or problem schools. Among the papers were

254

East Mountain Area 1995 air sampling results  

SciTech Connect (OSTI)

Ambient air samples were taken at two locations in the East Mountain Area in conjunction with thermal testing at the Lurance Canyon Burn Site (LCBS). The samples were taken to provide measurements of particulate matter with a diameter less than or equal to 10 micrometers (PM{sub 10}) and volatile organic compounds (VOCs). This report summarizes the results of the sampling performed in 1995. The results from small-scale testing performed to determine the potentially produced air pollutants in the thermal tests are included in this report. Analytical results indicate few samples produced measurable concentrations of pollutants believed to be produced by thermal testing. Recommendations for future air sampling in the East Mountain Area are also noted.

Deola, R.A. [Sandia National Labs., Albuquerque, NM (United States). Air Quality Dept.

1996-09-01T23:59:59.000Z

255

AIR SEALING Seal air leaks and save energy!  

E-Print Network [OSTI]

AIR SEALING Seal air leaks and save energy! W H A T I S A I R L E A K A G E ? Ventilation is fresh at stopping air leakage. It is critical to seal all holes and seams between these sheet goods with durable air that enters a house in a controlled manner to exhaust excess moisture and reduce odors

Oak Ridge National Laboratory

256

Air Quality: Air Pollutants, SLAC Emissions Sources, and Regulatory Reference  

E-Print Network [OSTI]

permit regulations are designed to track, record, and control air pollutants belonging to severalAir Quality: Air Pollutants, SLAC Emissions Sources, and Regulatory Reference Department: Chemical on chemical classifications. This reference outlines major categories of air pollutants found at SLAC

Wechsler, Risa H.

257

Upper bounds on the photon mass  

SciTech Connect (OSTI)

The effects of a nonzero photon rest mass can be incorporated into electromagnetism in a simple way using the Proca equations. In this vein, two interesting implications regarding the possible existence of a massive photon in nature, i.e., tiny alterations in the known values of both the anomalous magnetic moment of the electron and the gravitational deflection of electromagnetic radiation, are utilized to set upper limits on its mass. The bounds obtained are not as stringent as those recently found; nonetheless, they are comparable to other existing bounds and bring new elements to the issue of restricting the photon mass.

Accioly, Antonio [Laboratorio de Fisica Experimental (LAFEX), Centro Brasileiro de Pesquisas Fisicas (CBPF), Rua Dr. Xavier Sigaud 150, Urca, 22290-180, Rio de Janeiro, RJ (Brazil); Group of Field Theory from First Principles, Sao Paulo State University (UNESP), Rua Dr. Bento Teobaldo Ferraz 271, Bl. II-Barra Funda, 01140-070 Sao Paulo, SP (Brazil); Instituto de Fisica Teorica (IFT), Sao Paulo State University (UNESP), Rua Dr. Bento Teobaldo Ferraz 271, Bl. II-Barra Funda, 01140-070 Sao Paulo, SP (Brazil); Helayeel-Neto, Jose [Laboratorio de Fisica Experimental (LAFEX), Centro Brasileiro de Pesquisas Fisicas (CBPF), Rua Dr. Xavier Sigaud 150, Urca, 22290-180, Rio de Janeiro, RJ (Brazil); Group of Field Theory from First Principles, Sao Paulo State University (UNESP), Rua Dr. Bento Teobaldo Ferraz 271, Bl. II-Barra Funda, 01140-070 Sao Paulo, SP (Brazil); Scatena, Eslley [Instituto de Fisica Teorica (IFT), Sao Paulo State University (UNESP), Rua Dr. Bento Teobaldo Ferraz 271, Bl. II-Barra Funda, 01140-070 Sao Paulo, SP (Brazil); Group of Field Theory from First Principles, Sao Paulo State University (UNESP), Rua Dr. Bento Teobaldo Ferraz 271, Bl. II-Barra Funda, 01140-070 Sao Paulo, SP (Brazil)

2010-09-15T23:59:59.000Z

258

Quantitative imaging of the air-water flow fields formed by unsteady breaking waves  

E-Print Network [OSTI]

An experimental method for simultaneously measuring the velocity fields on the air and water side of unsteady breaking waves is presented. The method is applied to breaking waves to investigate the physics of the air and ...

Belden, Jesse (Jesse Levi)

2009-01-01T23:59:59.000Z

259

Laboratory Test Report for ThermaStor Ultra-Aire XT150H Dehumidifier  

SciTech Connect (OSTI)

This report documents the performance of the ThermaStor Ultra-Aire XT150H Dehumidifier. Its performance was measured across a wide range of inlet air conditions and fit to a numerical model.

Christensen, D.; Winkler, J.

2009-12-01T23:59:59.000Z

260

PERFORMANCE EVALUATION OF AN AIR-TO-AIR HEAT PUMP COUPLED WITH TEMPERATE AIR-SOURCES INTEGRATED INTO A DWELLING  

E-Print Network [OSTI]

PERFORMANCE EVALUATION OF AN AIR-TO-AIR HEAT PUMP COUPLED WITH TEMPERATE AIR-SOURCES INTEGRATED.peuportier@mines-paristech.fr, Tel.: +33 1 40 51 91 51 ABSTRACT An inverter-driven air-to-air heat pump model has been developped capacity air-to-air heat pump coupled with temperate air sources (crawlspace, attic, sunspace, heat

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "upper air measurements" 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

Upper bounds on sparticle masses from muon g-2 and the Higgs mass and the complementarity of future colliders  

E-Print Network [OSTI]

Supersymmetric (SUSY) explanation of the discrepancy between the measurement of $(g-2)_\\mu$ and its SM prediction puts strong upper bounds on the chargino and smuon masses. At the same time, lower experimental limits on the chargino and smuon masses, combined with the Higgs mass measurement, lead to an upper bound on the stop masses. The current LHC limits on the chargino and smuon masses (for not too compressed spectrum) set the upper bound on the stop masses of about 10 TeV. The discovery potential of the future lepton and hadron colliders should lead to the discovery of SUSY if it is responsible for the explanation of the $(g-2)_\\mu$ anomaly. This conclusion follows from the fact that the upper bound on the stop masses decreases with the increase of the lower experimental limit on the chargino and smuon masses.

Badziak, Marcin; Lewicki, Marek; Olechowski, Marek; Pokorski, Stefan

2014-01-01T23:59:59.000Z

262

Upper Cumberland EMC - Energy Efficiency Rebate Programs | Department of  

Broader source: Energy.gov (indexed) [DOE]

Upper Cumberland EMC - Energy Efficiency Rebate Programs Upper Cumberland EMC - Energy Efficiency Rebate Programs Upper Cumberland EMC - Energy Efficiency Rebate Programs < Back Eligibility Commercial Construction Residential Savings Category Heating & Cooling Home Weatherization Construction Commercial Weatherization Commercial Heating & Cooling Design & Remodeling Heat Pumps Appliances & Electronics Water Heating Program Info State Tennessee Program Type Utility Rebate Program Rebate Amount Residential Heat Pump: $150 per unit Commercial Heat Pump: $150 per three tons Water Heater: $100 Provider Upper Cumberland Electric Membership Corporation Upper Cumberland Electric Membership Corporation (UCEMC), in collaboration with the Tennessee Valley Authority, offers incentives for its customers to purchase and install energy efficient equipment through the Energy Right

263

Air Corrosivity in U.S. Outdoor-Air-Cooled Data Centers is Similar to That in Conventional Data Centers  

SciTech Connect (OSTI)

There is a concern that environmental-contamination caused corrosion may negatively affect Information Technology (IT) equipment reliability. Nineteen data centers in the United States and two in India were evaluated using Corrosion Classification Coupons (CCC) to assess environmental air quality as it may relate IT equipment reliability. The data centers were of two basic types: closed and outside-air cooled. A closed data center provides cool air to the IT equipment using air conditioning in which only a small percent age of the recirculation air is make-up air continuously supplied from outside to meet human health requirements. An outside-air cooled data center uses outside air directly as the primary source for IT equipment cooling. Corrosion measuring coupons containing copper and silver metal strips were placed in both closed and outside-air cooled data centers. The coupons were placed at each data center (closed and outside-air cooled types) with the location categorized into three groups: (1) Outside - coupons sheltered, located near or at the supply air inlet, but located before any filtering, (2) Supply - starting just after initial air filtering continuing inside the plenums and ducts feeding the data center rooms, and (3) Inside located inside the data center rooms near the IT equipment. Each coupon was exposed for thirty days and then sent to a laboratory for a corrosion rate measurement analysis. The goal of this research was to investigate whether gaseous contamination is a concern for U.S. data center operators as it relates to the reliability of IT equipment. More specifically, should there be an increased concern if outside air for IT equipment cooling is used To begin to answer this question limited exploratory measurements of corrosion rates in operating data centers in various locations were undertaken. This study sought to answer the following questions: (1) What is the precision of the measurements (2) What are the approximate statistical distributions of copper and silver corrosion rates in the sampled data centers(3) To what extent are copper and silver corrosion measurements related (4) What is the relationship of corrosion rate measurements between outside-air cooled data centers compared to closed data centers (5) How do corrosivity measurements relate to IT equipment failure rates The data from our limited sample size suggests that most United States data center operators should not be concerned with environmental gaseous contamination causing high IT equipment failure rates even when using outside-air cooling. The research team recommends additional basic research on how environmental conditions, specifically gaseous contamination, affect electronic equipment reliability.

Coles, Henry C.; Han, Taewon; Price, Phillip N.; Gadgil, Ashok J.; Tschudi, William F.

2011-07-17T23:59:59.000Z

264

EMISSIONS TO AIR OPERATIONAL PROCEDURE  

E-Print Network [OSTI]

EMISSIONS TO AIR OPERATIONAL PROCEDURE Swansea University Estates Services Singleton Park Swansea to Air Department: Estates and Facilities Site: All Author: Ambreen Jahangir Approved by: Mark Durdin PURPOSE: To minimise emissions and discharges to air from boilers, fume cupboards, air conditioning

Harman, Neal.A.

265

Air Quality | Open Energy Information  

Open Energy Info (EERE)

Retrieved from "http:en.openei.orgwindex.php?titleAirQuality&oldid612070" Category: NEPA Resources...

266

Pollutant measurements Nils Mole, Finn Palmgren & Hao Zhang  

E-Print Network [OSTI]

as the only/main tool for control of com- pliance with limit values; but air pollution measure- ments we deal with measurement techniques and strategies appropriate to major pollutants in both air and water, and also with the effects of unavoidable measurement errors. Pollutant Measurements in Air

Mole, Nils

267

Hadronic multiparticle production in extensive air showers and accelerator experiments  

E-Print Network [OSTI]

Using CORSIKA for simulating extensive air showers, we study the relation between the shower characteristics and features of hadronic multiparticle production at low energies. We report about investigations of typical energies and phase space regions of secondary particles which are important for muon production in extensive air showers. Possibilities to measure relevant quantities of hadron production in existing and planned accelerator experiments are discussed.

C. Meurer; J. Bluemer; R. Engel; A. Haungs; M. Roth

2005-06-30T23:59:59.000Z

268

Residential HVAC Indoor Air Quality(ASHRAE 62.2)  

E-Print Network [OSTI]

Residential HVAC && Indoor Air Quality(ASHRAE 62.2) Tav Commins #12;Contact Information · Energy construction, Additions /Alterations · Nonresidential and Residential #12;Residential HVAC && Indoor Air Quality(ASHRAE 62.2) ·HVAC EfficiencyHVAC Efficiency ·Quality Installation (HERS Measures) S li b HERS R t

269

Improved Air Volume Control Logic for VAV Systems  

E-Print Network [OSTI]

In a VAV (variable air volume) system, the set point of the static pressure (usually measured at 213 downstream of the main supply air duct) is maintained by modulating the fan speed or inlet guide vane position. The set point of the static pressure...

Wei, G.; Claridge, D. E.; Sakuri, Y.; M. Liu

2000-01-01T23:59:59.000Z

270

17th DOE nuclear air cleaning conference: proceedings. Volume 2  

SciTech Connect (OSTI)

Volume 2 contains papers presented at the following sessions: adsorption; noble gas treatment; personnel education and training; filtration and filter testing; measurement and instrumentation; air cleaning equipment response to accident related stress; containment venting air cleaning; and an open end session. Twenty-eight papers were indexed separately for inclusion in the Energy Data Base. Ten papers had been entered earlier.

First, M.W. (ed.)

1983-02-01T23:59:59.000Z

271

Compressed air energy storage system  

DOE Patents [OSTI]

An internal combustion reciprocating engine is operable as a compressor during slack demand periods utilizing excess power from a power grid to charge air into an air storage reservoir and as an expander during peak demand periods to feed power into the power grid utilizing air obtained from the air storage reservoir together with combustible fuel. Preferably the internal combustion reciprocating engine is operated at high pressure and a low pressure turbine and compressor are also employed for air compression and power generation.

Ahrens, Frederick W. (Naperville, IL); Kartsounes, George T. (Naperville, IL)

1981-01-01T23:59:59.000Z

272

Air Charter Services  

Broader source: Energy.gov (indexed) [DOE]

42.2 (April 2012) 42.2 (April 2012) 1 Documentation and Approval of Federally Funded International Travel (Fly America Act-Open Skies Agreement) Overview This section provides guidance to DOE Contracting Officers, Contracting Officer Representatives, and Program Officials on documentation and approval of federally funded international travel by Federal contractors and subcontractors in accordance with FAR 52.247-63 PREFERENCE FOR U.S.-FLAG AIR CARRIERS (JUNE 2003), 49 U.S.C. §40118 (Fly America Act) and the Open Skies Agreements as amended. Background Contracts that include FAR clause 52.247-63, PREFERENCE FOR U.S.-FLAG AIR CARRIERS (JUNE 2003) as prescribed in FAR 47.405 require that, if available, the Contractor (and subcontractors), in performing work under the contract, shall use U.S.-flag air carriers for

273

New facts about muon production in Extended Air Shower simulations  

E-Print Network [OSTI]

Whereas air shower simulations are very valuable tools for interpreting cosmic ray data, there is a long standing problem: is seems to be impossible to accommodate at the same time the longitudinal development of air showers and the number of muons measured at ground. Using a new hadronic interaction model (EPOS) in air shower simulations produces considerably more muons, in agreement with results from the HiRes-MIA experiment. We find that this is mainly due to a better description of baryon-antibaryon production in hadronic interactions. This is a new aspect of air shower physics which has never been considered so far.

T. Pierog; K. Werner

2006-11-09T23:59:59.000Z

274

The CitiSense Air Quality Monitoring Mobile Sensor Node Piero Zappi, Elizabeth Bales, Jing Hong Park, William Griswold and Tajana Simuni Rosing  

E-Print Network [OSTI]

conditions than the national ambient air quality standard [1]. Current air pollutant measurement networks. For example, The San Diego Air Pollution Control District (SDAPCD) maintains only five air pollutant samplingThe CitiSense Air Quality Monitoring Mobile Sensor Node Piero Zappi, Elizabeth Bales, Jing Hong

Simunic, Tajana

275

ACCURATE TEMPERATURE MEASUREMENTS IN A NATURALLY-ASPIRATED RADIATION SHIELD  

SciTech Connect (OSTI)

Experiments and calculations were conducted with a 0.13 mm fine wire thermocouple within a naturally-aspirated Gill radiation shield to assess and improve the accuracy of air temperature measurements without the use of mechanical aspiration, wind speed or radiation measurements. It was found that this thermocouple measured the air temperature with root-mean-square errors of 0.35 K within the Gill shield without correction. A linear temperature correction was evaluated based on the difference between the interior plate and thermocouple temperatures. This correction was found to be relatively insensitive to shield design and yielded an error of 0.16 K for combined day and night observations. The correction was reliable in the daytime when the wind speed usually exceeds 1 m s{sup -1} but occasionally performed poorly at night during very light winds. Inspection of the standard deviation in the thermocouple wire temperature identified these periods but did not unambiguously locate the most serious events. However, estimates of sensor accuracy during these periods is complicated by the much larger sampling volume of the mechanically-aspirated sensor compared with the naturally-aspirated sensor and the presence of significant near surface temperature gradients. The root-mean-square errors therefore are upper limits to the aspiration error since they include intrinsic sensor differences and intermittent volume sampling differences.

Kurzeja, R.

2009-09-09T23:59:59.000Z

276

Upper Peninsula Power Co | Open Energy Information  

Open Energy Info (EERE)

Peninsula Power Co Peninsula Power Co Jump to: navigation, search Name Upper Peninsula Power Co Place Michigan Utility Id 19578 Utility Location Yes Ownership I NERC Location RFC NERC RFC Yes Operates Generating Plant Yes Activity Generation Yes Activity Buying Transmission Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] Energy Information Administration Form 826[2] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png A-1 - Residential Seasonal Service Power Supply Service Residential A-1 - Residential Service Seasonal Residential A-2 - Residential Service Seasonal Residential Capacity Buyback Rider CP-IB

277

Building Energy Code Resource Guide: Air Leakage Guide | Building Energy  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Air Leakage Guide Air Leakage Guide The U.S. Department of Energy (DOE) recognizes the enormous potential that exists for improving the energy efficiency, safety and comfort of homes. The 2012 International Energy Conservation Code (IECC) sets the bar for energy efficiency, and air sealing requirements are one of the key provisions. This guide is a resource for understanding the air leakage requirements in the 2012 IECC and suggestions on how these measures can be met. It also provides information from Building America's Air Sealing Guide, best Practices and case studies on homes that are currently meeting the provisions. The 2012 IECC and a few International Residential Code requirements are referenced throughout the guide. Publication Date: Friday, September 30, 2011 BECP_Buidling Energy Code Resource Guide Air Leakage

278

List of Duct/Air sealing Incentives | Open Energy Information  

Open Energy Info (EERE)

Duct/Air sealing Incentives Duct/Air sealing Incentives Jump to: navigation, search The following contains the list of 580 Duct/Air sealing Incentives. CSV (rows 1-500) CSV (rows 501-580) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active AEP (Central and North) - Residential Energy Efficiency Programs (Texas) Utility Rebate Program Texas Construction Installer/Contractor Multi-Family Residential Building Insulation Caulking/Weather-stripping Comprehensive Measures/Whole Building Custom/Others pending approval Duct/Air sealing Unspecified technologies Yes AEP (Central and SWEPCO) - Coolsaver A/C Tune Up (Texas) Utility Rebate Program Texas Commercial Installer/Contractor Residential Central Air conditioners Custom/Others pending approval Duct/Air sealing

279

A diffusion approximation approach to stochastic modeling of air conditioning type loads  

E-Print Network [OSTI]

that the air conditioning unit is on and off. In the followino equations, TNIN and TNAX are the lower and upper limit temperatures of the thermostat deadband and To is the outside temperature. Gi 2Gw To Tw Cw Ci $ QeXt To - outside temperature Tw - wall... temperature Ti - inside temperature Gw ? thermal conductance of wall Gi - thermal conductance of air Cw - thermal capacitance of wall Ci ? thermal capacitance of air Qe - rated capacity of cooling unit Xt - zero-one process describing the switching...

Roy, Teresa Henryka

1981-01-01T23:59:59.000Z

280

Development and Analysis of Desiccant Enhanced Evaporative Air...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

a minimum of 11.2 for a 10-ton commercially packaged air-cooled unit (ASHRAE 2010). Energy savings are expected to be greater than indicated by the IEER effective measurement,...

Note: This page contains sample records for the topic "upper air measurements" 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

Air Pollution Health Effects: Toward an Integrated Assessment  

E-Print Network [OSTI]

Scientists and policy makers have become increasingly aware of the need to jointly study climate change and air pollution because of the interactions among policy measures and in the atmospheric chemistry that creates the ...

Yang, Trent.

282

Sticking with air  

SciTech Connect (OSTI)

A decision to replace more than 300 aging damper actuators at Independence Plant in Newark, Arkensas forced Entergy to make a choice between pneumatic and electric actuator designs. The dampers route air flow through separate dedicated compartments to ensure proper firing of pulverised coal. The reasons that pneumatics was chosen are discussed in this article. 4 figs.

Coker, S.N. [Entergy (US). Independence Plant

2005-06-01T23:59:59.000Z

283

The air plasma spraying  

Science Journals Connector (OSTI)

The air plasma spraying is characterized by using of a compressed air as a plasma forming gas. Here is shown the application of benefits of the present technology compared with other spraying process. The creation of the present process was possible due to a reliable plasma torch and certain condition of heating and deposition of powder materials on a work. Plasma torch develops a power up to 50 kW and can work during 14 hours without replacement of a cathode and during 25 hours as for an anode what is acceptable for industrial application. When spraying of coatings a minimum waste of alloying elements is attained with slight increase of oxygen in coating which is comparable with argon plasma spraying in the open. In certain cases the air plasma spraying allows to obtain more perfect coatings and at high performance. The present method finds large application at restoration and strengthening of machine parts, at forming of components etc. The air plasma spraying provides high quality coatings at low cost of components.

Valery S. Klubnikin

1993-01-01T23:59:59.000Z

284

Canned Air in China  

E-Print Network [OSTI]

Broadcast Transcript: Not that long ago, coal smoke made the air here in Beijing so caustic that your nasal passages were seared with each breath. Those were the good old days: Car ownership was limited to government officials and the rest...

Hacker, Randi

2013-10-23T23:59:59.000Z

285

Density measurements Viscosity measurements  

E-Print Network [OSTI]

Density measurements Viscosity measurements Temperature measurements Pressure measurements Flow rate measurements Velocity measurements Sensors How to measure fluid flow properties ? Am´elie Danlos Ravelet Experimental methods for fluid flows: an introduction #12;Density measurements Viscosity

Ravelet, Florent

286

Industrial HVAC Air-to-Air Energy Recovery Retrofit Economics  

E-Print Network [OSTI]

Retrofitting air-to-air energy recovery equipment is relatively simply to design and easy to install. Additionally, HVAC energy recovery is almost risk free when compared to process retrofit. Life cycle cost analysis is the best way to illustrate...

Graham, E. L.

1980-01-01T23:59:59.000Z

287

Compressed Air 101: Getting Compressed Air to Work  

E-Print Network [OSTI]

"Air compressors are a significant industrial energy user. Based on a survey (conducted by Oregon State University and the Bonneville Power Administration) of energy audit reports from 125 plants, air compressors account for roughly 10% of total...

Burke, J. J.; Bessey, E. G.

288

Vermont Air Pollution Control Regulations, Ambient Air Quality Standards (Vermont)  

Broader source: Energy.gov [DOE]

The ambient air quality standards are based on the national ambient air quality standards. The Vermont standards are classified as primary and secondary standards and judged adequate to protect...

289

Dispersion modeling of selected \\{PAHs\\} in urban air: A new approach combining dispersion model with GIS and passive air sampling  

Science Journals Connector (OSTI)

Abstract This study introduces a new combined air concentration measurement and modeling approach that we propose can be useful in medium and long term air quality assessment. A dispersion study was carried out for four high molecular weight polycyclic aromatic hydrocarbons (PAHs) in an urban area with industrial, traffic and domestic heating sources. A geographic information system (GIS) was used both for processing of input data as well as visualization of the modeling results. The outcomes of the dispersion model were compared to the results of passive air sampling (PAS). Despite discrepancies between measured and modeled concentrations, an approach combining the two techniques is promising for future air quality assessment. Differences between measured and modeled concentrations, in particular when measured values exceed the modeled concentrations, are indicative of undocumented, sporadic pollutant sources. Thus, these differences can also be useful for assessing and refining emission inventories.

Ond?ej Sá?ka; Lisa Melymuk; Pavel ?upr; Alice Dvorská; Jana Klánová

2014-01-01T23:59:59.000Z

290

A spectral light absorption meter for measurements in the sea  

Science Journals Connector (OSTI)

Dec 17, 1974 ... the measuring period, that the horizontal di- ... ance in the upper few meters at high solar ... area of the spherical collector and the ratio.

2000-01-04T23:59:59.000Z

291

Environmental Pollution Air Pollution Dispersion Practical Air Pollution Dispersion  

E-Print Network [OSTI]

Environmental Pollution Air Pollution Dispersion 1 of 5 Practical ­ Air Pollution Dispersion in the lectures how such models can be used to explain observed concentrations of air pollutants in an area and to test `what-if' scenarios for pollution control and reduction. You will use the Gaussian Plume Model

Moncrieff, John B.

292

Characterization of a geothermal system in the Upper Arkansas...  

Open Energy Info (EERE)

Paper: Characterization of a geothermal system in the Upper Arkansas Valley Authors T. Blum, K. van Wijk, L. Liberty, M. Batzle, R. Krahenbuhl, A. Revil and R. Reynolds...

293

Upper crustal structure of an obliquely extending orogen, central...  

Open Energy Info (EERE)

eastern California Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: Upper crustal structure of an obliquely extending orogen, central...

294

Schlumberger soundings in the Upper Raft River and Raft River...  

Open Energy Info (EERE)

Schlumberger soundings in the Upper Raft River and Raft River Valleys, Idaho and Utah Abstract In 1975, the U.S. Geological Survey made seventy Schlumberger resistivity...

295

Air Conditioning | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Conditioning Conditioning Air Conditioning July 1, 2012 - 6:28pm Addthis Air conditioners cost U.S. homeowners more than $11 billion each year, and regular maintenance can keep your air conditioner running efficiently. | Photo courtesy of ©iStockphoto/JaniceRichard Air conditioners cost U.S. homeowners more than $11 billion each year, and regular maintenance can keep your air conditioner running efficiently. | Photo courtesy of ©iStockphoto/JaniceRichard How does it work? An air conditioner uses energy -- usually electricity -- to transfer heat from the interior of your home to the relatively warm outside environment. Two-thirds of all homes in the United States have air conditioners. Air conditioners use about 5% of all the electricity produced in the United States, at an annual cost of more than $11 billion to homeowners. As a

296

Louisiana Air Control Law (Louisiana)  

Broader source: Energy.gov [DOE]

This law states regulations for air quality control and states the powers and duties of the secretary of environmental quality. It provides information about permits and licenses, air quality...

297

Air Pollution Indicator: PM10  

Science Journals Connector (OSTI)

As one of natural elements, clean air is essential to human beings’ survival. ... , almost all economic and social activities emit air pollutants, especially such sectors as power and ... and international commun...

Hezhong Tian; Yimeng Liu

2014-01-01T23:59:59.000Z

298

Air Liquide- Biogas & Fuel Cells  

Broader source: Energy.gov [DOE]

Presentation about Air Liquide's biogas technologies and integration with fuel cells. Presented by Charlie Anderson, Air Liquide, at the NREL/DOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado.

299

Solar Heating and Air Conditioning  

Science Journals Connector (OSTI)

...given of the status of solar fired air conditioning...to an approach to cool storage in solar air conditioning systems...an assessment of cool storage for reducing peak electrical...rolling cylinder thermal energy storage device for compact...

1980-01-01T23:59:59.000Z

300

Compressed Air Audits using AIRMaster  

E-Print Network [OSTI]

Air compressors are a significant industrial energy user and therefore a prime target for industrial energy audits. The project goal was to develop a software tool, AIRMaster, and supporting methodology for performing compressed air system audits...

Wheeler, G. M.; McGill, R. D.; Bessey, E. G.; Vischer, K.

Note: This page contains sample records for the topic "upper air measurements" 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

Fundamentals of Compressed Air Systems  

Broader source: Energy.gov [DOE]

Find out how a compressed air system works and the benefits of optimal compressed air system performance. This initial class demonstrates how to compute the current cost of your plant's compressed...

302

Roadway tunnel air quality models  

Science Journals Connector (OSTI)

Roadway tunnel air quality models ... Analysis of 13 tunnel studies quantifies the decline since 1961 in benzo[a]pyrene emitted into the air per km of travel by U.S. road vehicles. ...

Tai Y. Chang; Sara J. Rudy

1990-05-01T23:59:59.000Z

303

Compressed Air System Control Strategies  

Broader source: Energy.gov [DOE]

This tip sheet briefly discusses compressed air system control strategies as a means to improving and maintaining system performance.

304

Compressed Air Energy Storage System  

E-Print Network [OSTI]

/expanders are crucial for the economical viability of a Compressed Air Energy Storage (CAES) system such as the

Farzad A. Shirazi; Mohsen Saadat; Bo Yan; Perry Y. Li; Terry W. Simon

305

Analyzing Your Compressed Air System  

Broader source: Energy.gov [DOE]

This tip sheet outlines the process to analyze industrial compressed air systems and ensure proper system configuration.

306

Air Leaks in Unexpected Places  

Broader source: Energy.gov [DOE]

Sealing air leaks will help to decrease heating and cooling costs and make your home more comfortable.

307

AIR QUALITY REPORT SPARKS CONTROVERSY  

Science Journals Connector (OSTI)

AIR QUALITY REPORT SPARKS CONTROVERSY ... The National Commission on Air Quality delivered its eagerly awaited report to Congress today, and reaction from industry and environmental groups is expected to be both swift and sharp. ... Created under the 1977 Clean Air Act, the commission was charged with assessing the effectiveness of the law, and recommending changes where the law falls short of achieving the goal of improving the nation's air quality. ...

1981-03-02T23:59:59.000Z

308

Air-Lift design theory  

Science Journals Connector (OSTI)

1. Employing graphical relationships between height of lift of the emulsion, depth of shaft, and specific air ra...

P. R. Khlopenkov

1970-10-01T23:59:59.000Z

309

Session 3: Past, current and future exposure to air pollutants and its  

E-Print Network [OSTI]

measurements and model to evaluate spatial and temporal trends in air pollution exposure and resulting health Examine health effects of this long-term exposure #12;Air pollution trends- past and future We can useSession 3: Past, current and future exposure to air pollutants and its effects Chris Dibben, Tom

310

The Viscosity of Air  

Science Journals Connector (OSTI)

The viscosity of air has been remeasured with the rotating cylinder apparatus used by Day and Bleakney. All of the constants have been redetermined, and especial attention has been given to the corrections to the simple theory. The value obtained at 22°C is ?=1.8243±0.0045 c.g.s. units. This raises the oil drop value of e to 4.796 e.s.u. It is shown in the appendix that a correction must be applied for the opening between the suspended cylinder and the guard cylinders, and also a correction must be applied for the moment of inertia of the air carried around by the cylinder when determining its moment of inertia. Neglect of these corrections has introduced some additional uncertainty into other work.

W. V. Houston

1937-10-01T23:59:59.000Z

311

FLUIDIC: Metal Air Recharged  

SciTech Connect (OSTI)

Fluidic, with the help of ARPA-E funding, has developed and deployed the world's first proven high cycle life metal air battery. Metal air technology, often used in smaller scale devices like hearing aids, has the lowest cost per electron of any rechargeable battery storage in existence. Deploying these batteries for grid reliability is competitive with pumped hydro installations while having the advantages of a small footprint. Fluidic's battery technology allows utilities and other end users to store intermittent energy generated from solar and wind, as well as maintain reliable electrical delivery during power outages. The batteries are manufactured in the US and currently deployed to customers in emerging markets for cell tower reliability. As they continue to add customers, they've gained experience and real world data that will soon be leveraged for US grid reliability.

Friesen, Cody

2014-03-07T23:59:59.000Z

312

FLUIDIC: Metal Air Recharged  

ScienceCinema (OSTI)

Fluidic, with the help of ARPA-E funding, has developed and deployed the world's first proven high cycle life metal air battery. Metal air technology, often used in smaller scale devices like hearing aids, has the lowest cost per electron of any rechargeable battery storage in existence. Deploying these batteries for grid reliability is competitive with pumped hydro installations while having the advantages of a small footprint. Fluidic's battery technology allows utilities and other end users to store intermittent energy generated from solar and wind, as well as maintain reliable electrical delivery during power outages. The batteries are manufactured in the US and currently deployed to customers in emerging markets for cell tower reliability. As they continue to add customers, they've gained experience and real world data that will soon be leveraged for US grid reliability.

Friesen, Cody

2014-04-02T23:59:59.000Z

313

Air Pollution & Health in Rapidly Developing Countries  

E-Print Network [OSTI]

For example, “Air Pollution and Health – Studies in theAssessment of Air Pollution and Health” is illustrative inReview: Air Pollution & Health in Rapidly Developing

Bucher, Scott

2005-01-01T23:59:59.000Z

314

California Air Resources Board | Open Energy Information  

Open Energy Info (EERE)

Air Resources Board Jump to: navigation, search Logo: California Air Resources Board Name: California Air Resources Board Place: Sacramento, California Website: http:...

315

Observations of Upper Ocean Currents at DOMES Sites A,B, and C in the Tropical Central North Pacific Ocean During 1975 and 1976  

Science Journals Connector (OSTI)

The time and space (vertical) scales of the upper ocean current field are described from moored current measurements made at 20 m, 50 m ... C was within the westward-flowing North Equatorial Current. At Sites A a...

David Halpern

1979-01-01T23:59:59.000Z

316

ORIGINAL ARTICLE Ambient Air Pollution  

E-Print Network [OSTI]

supporting an association between am- bient air pollution and cardiovascular health, much re- mains health effects of ambient air pollution in Atlanta being undertaken by this Emory investi- gative teamORIGINAL ARTICLE Ambient Air Pollution and Cardiovascular Emergency Department Visits Kristi Busico

Mulholland, James A.

317

Integrated Solar Upper Stage (ISUS) mission trades  

SciTech Connect (OSTI)

Solar thermal propulsion and propulsion/power systems were recently identified as key technologies in the Operational Effectiveness and Cost Comparison Study (OECS) sponsored by Phillips Laboratory (PL). These technologies were found to be pervasively cost effective with short transfer times and very good performance across a wide range of missions. The on-going Integrated Solar Upper Stage (ISUS) Program sponsored by PL represents development of a solar thermal propulsion/power (bimodal) system. As part of this effort, mission trades are being conducted to further define the ISUS system for geosynchronous equatorial orbit (GEO), high Earth orbit (HEO-Molniya class), and mid Earth orbit (MEO-GPS class) missions. These trades will consider launch vehicles ranging in size from a LLV3 to an Atlas IIAS that insert the ISUS into low Earth orbit (LEO). These trades will be used to define the ISUS system for the planned Engine Ground Demonstration, a space demonstration mission, and as a future operational system.

Frye, P. [Rockwell Aerospace, Canoga Park, CA (United States). Rocketdyne Div.

1996-12-31T23:59:59.000Z

318

E-Print Network 3.0 - air flow excitation Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the upstream air pressure does not change the Mach number but does increase the mass flow rate through the wind... measurable penetration of helium ... Source: Buckley, Steven G. -...

319

E-Print Network 3.0 - air-borne power ultrasonic Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

search results for: air-borne power ultrasonic Page: << < 1 2 3 4 5 > >> 1 Center for Industrial Sensors and Measurements Department Materials Science & Engineering Summary:...

320

E-Print Network 3.0 - air-water bubbly flow Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

; Chemistry 6 Hydrodynamic and statistical parameters of slug flow Lev Shemer * Summary: identification from dynamic void fraction measurements in vertical air-water flows. Int....

Note: This page contains sample records for the topic "upper air measurements" 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

E-Print Network 3.0 - air quality agreement Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

- a Focus on Algorithm Refinement... on the understanding of the retrieval quality from satellite measurements through validation and intercomparison - AIRS... designed to...

322

E-Print Network 3.0 - aspirated nasal air Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

. These include nasal air pressure (Weiss, 1954; Shelton et al., 1967); nasal vibration (Stevens et al., 1975... Measurement of vowel nasalization by multi-dimensional...

323

Air Pollution Control Regulations: No. 22 - Air Toxics (Rhode Island) |  

Broader source: Energy.gov (indexed) [DOE]

Air Pollution Control Regulations: No. 22 - Air Toxics (Rhode Air Pollution Control Regulations: No. 22 - Air Toxics (Rhode Island) Air Pollution Control Regulations: No. 22 - Air Toxics (Rhode Island) < Back Eligibility Commercial Industrial Investor-Owned Utility Municipal/Public Utility Rural Electric Cooperative Utility Program Info State Rhode Island Program Type Siting and Permitting Provider Department of Environmental Management Permits are required to construct, install, or modify any stationary source which has the potential to increase emissions of a listed toxic air contaminant by an amount greater than the minimum quantity for that contaminant. Minimum quantities are specified in Table III of these regulations. Permits will be granted based in part on the impact of the projected emissions of the stationary source on acceptable ambient levels

324

Integrated Technology Air Cleaners (ITAC): Design and Evaluation  

SciTech Connect (OSTI)

The primary objective of this project was to design, build, and test an air cleaner for residential use with the potential to substantially improve indoor air quality, or maintain indoor air quality unchanged, when outdoor air ventilation rates are reduced to save energy. Two air cleaners were designed and fabricated. The design targets for airflow rate, fan power, and projected cost were met. In short term laboratory studies, both units performed as expected; however, during field studies in homes, the formaldehyde removal performance of the air cleaners was much lower than expected. In subsequent laboratory studies, incomplete decomposition of some indoor air volatile organic compounds, with formaldehyde as a product of partial decomposition of volatile organic compounds, was confirmed as the explanation for the poor formaldehyde removal performance in the field studies. The amount of formaldehyde produced per unit of decomposition of other volatile organic compounds was substantially diminished by increasing the amount of catalyst on the filter and also by decreasing the air velocity. Together, these two measures reduced formaldehyde production, per unit destruction of other volatile organic compounds, by a factor of four, while increasing the removal efficiency of volatile organic compounds by a factor of 1.4. A company with a southern California office is conducting studies in conjunction with Lawrence Berkeley National Laboratory, with the goal of incorporating the ITAC catalytic air cleaning technology in their future commercial products.

Fisk, William J.; Cohn, Sebastian; Destaillats, Hugo; Henzel, Victor; Sidheswaran, Meera; Sullivan, Douglas P.

2013-09-13T23:59:59.000Z

325

Air Risk Information Support Center  

SciTech Connect (OSTI)

The Air Risk Information Support Center (Air RISC) was initiated in early 1988 by the US Environmental Protection Agency`s (EPA) Office of Health and Environmental Assessment (OHEA) and the Office of Air Quality Planning and Standards (OAQPS) as a technology transfer effort that would focus on providing information to state and local environmental agencies and to EPA Regional Offices in the areas of health, risk, and exposure assessment for toxic air pollutants. Technical information is fostered and disseminated by Air RISCs three primary activities: (1) a {open_quotes}hotline{close_quotes}, (2) quick turn-around technical assistance projects, and (3) general technical guidance projects. 1 ref., 2 figs.

Shoaf, C.R.; Guth, D.J. [Environmental Protection Agency, Washington, DC (United States)

1990-12-31T23:59:59.000Z

326

Diversity in the upper management of leading Texas contractors  

E-Print Network [OSTI]

of the overall sample, Gender, Position, or Ethnicity categories. It was found that the Ethnic make up of upper management is not representative of the Ethnic make up of the Texas or national construction workforces, while the Gender make up of upper management...

Lawrence, Anne Nicole

2003-01-01T23:59:59.000Z

327

Managing Upper extremity Fx's Sweden 10-Managing Pediatric  

E-Print Network [OSTI]

Managing Upper extremity Fx's Sweden 10- 05 1 Managing Pediatric Fractures Andrew Pennock, M extremity Fx's Sweden 10- 05 2 Children Are Not Miniature Adults! · Open Growth Plates · Remodeling is Changing "Citius, Altius, Fortius" - Faster, Higher, Stronger #12;Managing Upper extremity Fx's Sweden 10

Squire, Larry R.

328

Solubility and freezing effects of Fe2+ solutions representative of upper tropospheric and lower  

E-Print Network [OSTI]

determined the total equilibrium metal solubility ([Fe2+ ]T and [Mg2+ ]T) in 20­90 wt % sulfuric acidSolubility and freezing effects of Fe2+ and Mg2+ in H2SO4 solutions representative of upper solutions over the temperature range 200­300 K. We have measured solubilities using samples of MgSO4, FeSO4Á

329

AIRMaster: Compressed air system audit software  

SciTech Connect (OSTI)

The project goal was to develop a software tool, AIRMaster, and a methodology for performing compressed air system audits. AIRMaster and supporting manuals are designed for general auditors or plant personnel to evaluate compressed air system operation with simple instrumentation during a short-term audit. AIRMaster provides a systematic approach to compressed air system audits, analyzing collected data, and reporting results. AIRMaster focuses on inexpensive Operation and Maintenance (O and M) measures, such as fixing air leaks and improving controls that can significantly improve performance and reliability of the compressed air system, without significant risk to production. An experienced auditor can perform an audit, analyze collected data, and produce results in 2--3 days. AIRMaster reduces the cost of an audit, thus freeing funds to implement recommendations. The AIRMaster package includes an Audit Manual, Software and User's manual, Analysis Methodology Manual, and a Case Studies summary report. It also includes a Self-Guided Tour booklet to help users quickly screen a plant for efficiency improvement potentials, and an Industrial Compressed Air Systems Energy Efficiency Guidebook. AIRMaster proved to be a fast and effective audit tool. In sever audits AIRMaster identified energy savings of 4,056,000 kWh, or 49.2% of annual compressor energy use, for a cost savings of $152,000. Total implementation costs were $94,700 for a project payback period of 0.6 years. Available airflow increased between 11% and 51% of plant compressor capacity, leading to potential capital benefits from 40% to 230% of first year energy savings.

Wheeler, G.M.; Bessey, E.G.; McGill, R.D.; Vischer, K.

1997-07-01T23:59:59.000Z

330

UN PROCD DE DOSAGE CONTINU DU RADON DANS L'AIR ATMOSPHRIQUE. APPLICATION A LA PROSPECTION DE L'URANIUM  

E-Print Network [OSTI]

: it permits measurement of the activity of radioactive products of radon in air ; the air permits pass through176 UN PROC�D� DE DOSAGE CONTINU DU RADON DANS L'AIR ATMOSPH�RIQUE. APPLICATION A LA PROSPECTION DE radon de l'air atmo- sphérique. Une pompe à grand débit aspire l'air à analyser à travers un papier

Boyer, Edmond

331

Urban and Regional Air Quality  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

equipment equipment Urban and Regional Air Quality Research in this area is concerned with regional air quality issues such as: Controlling nitrogen oxides (NOx) and volatile organic compounds, to manage tropospheric ozone pollution. Hazardous air pollutants: using science to base standards on rigorously studied risks. Air quality and climate: how does climate influence air quality at a regional or local level? Current modeling practices often do not capture variations in pollutants such as ozone-they represent a limited sample of the diverse meteorology and human behavior that affect air pollution. Improved modeling of regional air quality will help understand variability, reveal patterns of behavior, and pollutant transport issues. Controlled experiments in lab and field can help validate improved models.

332

Clean Air Act | Department of Energy  

Office of Environmental Management (EM)

Clean Air Act Clean Air Act The primary law governing the Department of Energy (DOE) air pollution control activities is the Clean Air Act (CAA). This law defines the role of the...

333

NETL: Ambient Monitoring - Steubenville Comprehensive Air Monitoring  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Steubenville Comprehensive Air Monitoring Project (SCAMP) Steubenville Comprehensive Air Monitoring Project (SCAMP) The National Ambient Air Quality Standards for airborne fine particles (PM2.5) are based on the mass of PM2.5 measured at outdoor monitoring stations; however, most people spend the majority of their time indoors. In order to fully understand the relationship between ambient PM2.5 and human health effects, it is important to define how ambient PM2.5 concentrations and compositions compare to those actually breathed by humans during normal daily activities. The objective of SCAMP is to measure the concentrations of PM2.5 and other potential air pollutants at ambient monitoring stations in and around Steubenville, OH, and relate them to the pollutant concentrations in air that is actually breathed by people living in the area. Steubenville was chosen by DOE for this study because of the ability to integrate its results with those of the UORVP, and also because Steubenville was one of the six cities where correlations between ambient PM2.5 mass and adverse health effects had been noted. These correlations had been cited by EPA as one of the primary justifications for its 1997 ambient PM2.5 standards. Complete characterization of the relationships between ambient PM2.5 and human exposure, including the chemical components of PM2.5 at various locations, will provide a comprehensive database for use in subsequent epidemiological studies, long-range transport studies, and State Implementation Program development. CONSOL Energy is the primary performer of SCAMP, and will provide the necessary coordination and data integration between the various components of the study.

334

Entanglement Cost of Nonlocal Measurements  

E-Print Network [OSTI]

For certain joint measurements on a pair of spatially separated particles, we ask how much entanglement is needed to carry out the measurement exactly. For a class of orthogonal measurements on two qubits with partially entangled eigenstates, we present upper and lower bounds on the entanglement cost. The upper bound is based on a recent result by D. Berry [Phys. Rev. A 75, 032349 (2007)]. The lower bound, based on the entanglement production capacity of the measurement, implies that for almost all measurements in the class we consider, the entanglement required to perform the measurement is strictly greater than the average entanglement of its eigenstates. On the other hand, we show that for any complete measurement in d x d dimensions that is invariant under all local Pauli operations, the cost of the measurement is exactly equal to the average entanglement of the states associated with the outcomes.

Somshubhro Bandyopadhyay; Gilles Brassard; Shelby Kimmel; William K. Wootters

2008-09-12T23:59:59.000Z

335

Entanglement cost of nonlocal measurements  

SciTech Connect (OSTI)

For certain joint measurements on a pair of spatially separated particles, we ask how much entanglement is needed to carry out the measurement exactly. For a class of orthogonal measurements on two qubits with partially entangled eigenstates, we present upper and lower bounds on the entanglement cost. The upper bound is based on a recent result by Berry [Phys. Rev. A 75, 032349 (2007)]. The lower bound, based on the entanglement production capacity of the measurement, implies that for almost all measurements in the class we consider, the entanglement required to perform the measurement is strictly greater than the average entanglement of its eigenstates. On the other hand, we show that for any complete measurement in dxd dimensions that is invariant under all local generalized Pauli operations, the cost of the measurement is exactly equal to the average entanglement of the states associated with the outcomes.

Bandyopadhyay, Somshubhro; Brassard, Gilles [Departement IRO, Universite de Montreal, Montreal, Quebec, H3C 3J7 (Canada); Kimmel, Shelby; Wootters, William K. [Department of Physics, Williams College, Williamstown, Massachusetts 01267 (United States)

2009-07-15T23:59:59.000Z

336

Electrocatalysts for Nonaqueous Lithium–Air Batteries:...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Electrocatalysts for Nonaqueous Lithium–Air Batteries: Status, Challenges, and Perspective. Electrocatalysts for Nonaqueous Lithium–Air Batteries: Status, Challenges,...

337

Remove Condensate with Minimal Air Loss  

Broader source: Energy.gov [DOE]

This tip sheet outlines several condensate removal methods as part of maintaining compressed air system air quality.

338

Discussion of Air-Conditioning Energy-Savings in Hot-Summer and Cold-Winter Regions  

E-Print Network [OSTI]

Introducing several kinds of air-conditioning systems energy conservation measures, and according to the climate of the hot-summer and cold-winter region in China, this paper puts forward an overall conception for air-conditioning energy...

Zheng, W.; Gong, F.; Lou, X.; Cheng, J.

2006-01-01T23:59:59.000Z

339

EML Surface Air Sampling Program, 1990--1993 data  

SciTech Connect (OSTI)

Measurements of the concentrations of specific atmospheric radionuclides in air filter samples collected for the Environmental Measurements Laboratory`s Surface Air Sampling Program (SASP) during 1990--1993, with the exception of April 1993, indicate that anthropogenic radionuclides, in both hemispheres, were at or below the lower limits of detection for the sampling and analytical techniques that were used to collect and measure them. The occasional detection of {sup 137}Cs in some air filter samples may have resulted from resuspension of previously deposited debris. Following the April 6, 1993 accident and release of radionuclides into the atmosphere at a reprocessing plant in the Tomsk-7 military nuclear complex located 16 km north of the Siberian city of Tomsk, Russia, weekly air filter samples from Barrow, Alaska; Thule, Greenland and Moosonee, Canada were selected for special analyses. The naturally occurring radioisotopes that the authors measure, {sup 7}Be and {sup 210}Pb, continue to be detected in most air filter samples. Variations in the annual mean concentrations of {sup 7}Be at many of the sites appear to result primarily from changes in the atmospheric production rate of this cosmogenic radionuclide. Short-term variations in the concentrations of {sup 7}Be and {sup 210}Pb continued to be observed at many sites at which weekly air filter samples were analyzed. The monthly gross gamma-ray activity and the monthly mean surface air concentrations of {sup 7}Be, {sup 95}Zr, {sup 137}Cs, {sup 144}Ce, and {sup 210}Pb measured at sampling sites in SASP during 1990--1993 are presented. The weekly mean surface air concentrations of {sup 7}Be, {sup 95}Zr, {sup 137}Cs, {sup 144}Ce, and {sup 210}Pb for samples collected during 1990--1993 are given for 17 sites.

Larsen, R.J.; Sanderson, C.G.; Kada, J.

1995-11-01T23:59:59.000Z

340

COMPARATIVE EVALUATION OF AMBIENT FINE PARTICULATE MATTER (PM2.5)DATA OBTAINED FROM URBAN AND RURAL MONITORING SITES ALONG THE UPPER OHIO RIVER VALLEY  

SciTech Connect (OSTI)

Advanced Technology Systems, Inc. (ATS), with Desert Research Institute (DRI) and Ohio University as subcontractors, was contracted by the NETL in September 1998 to manage the Upper Ohio River Valley Project (UORVP), with a goal of characterizing the ambient fine particulate in this region, including examination of urban/rural variations, correlations between PM{sub 2.5} and gaseous pollutants, and influences of artifacts on PM{sub 2.5} measurements in this region. Two urban and two rural monitoring sites were included in the UORVP. The four sites selected were all part of existing local and/or state air quality programs. One urban site was located in the Lawrenceville section of Pittsburgh, Pennsylvania at an air quality monitoring station operated by the Allegheny County Health Department. A second urban site was collocated at a West Virginia Division of Environmental Protection (WVDEP) monitoring station at the airport in Morgantown, West Virginia. One rural site was collocated with the Pennsylvania Department of Environmental Protection (PADEP) at a former NARSTO-Northeast site near Holbrook, Greene County, Pennsylvania. The other rural site was collocated at a site operated by the Ohio Environmental Protection Agency (OHEPA) and managed by the Ohio State Forestry Division in Gifford State Forest near Athens, Ohio. Analysis of data collected to date show that: (1) the median mass and composition of PM{sub 2.5} are similar for both Lawrenceville and Holbrook, suggesting that the sites are impacted more by the regional than by local effects; (2) there was no significant differences in the particulate trending and levels observed at both sites within seasons; (3) sulfate levels predominate at both sites, and (4) PM{sub 2.5} and PM{sub 10} mass concentration levels are consistently higher in summer than in winter, with intermediate levels being observed in the fall and spring. Data analysis focusing on relating the aerometric measurements to local and regional scale emissions of sources of primary and secondary fine particles using receptor-based air quality models will follow.

Robinson P. Khosah; John P. Shimshock

2003-04-30T23:59:59.000Z

Note: This page contains sample records for the topic "upper air measurements" 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

Abatement of Air Pollution: Hazardous Air Pollutants (Connecticut)  

Broader source: Energy.gov [DOE]

These regulations describe maximum allowable stack concentrations and hazard limiting values for the emission of hazardous air pollutants. The regulations also discuss sampling procedures for...

342

Air pollution study of Laredo Customs Station  

E-Print Network [OSTI]

the accuracy of the scaled model with that of the actual station a complete survey of veloc1ty, pressure, temperature and video tape recordings were taken in Laredo. These results were then compared with those simulated in the wind tunnel. Good correlation... Circuitry for Model Ventilation System. . . 3-14 Instrumentation in the Control Room. . 22 24 25 26 27 28 31 32 4-1 Existing Forced Air System. 4-2 Video Taping at Laredo. 4-3 Exhaust Fan Velocity Measurement. 4-4 Wind Velocity Measurement...

Welling, Vidyadhar Yeshwant

2012-06-07T23:59:59.000Z

343

Ventilation System Effectiveness and Tested Indoor Air Quality Impacts  

SciTech Connect (OSTI)

Ventilation system effectiveness testing was conducted at two unoccupied, single-family, detached lab homes at the University of Texas - Tyler. Five ventilation system tests were conducted with various whole-building ventilation systems. Multizone fan pressurization testing characterized building and zone enclosure leakage. PFT testing showed multizone air change rates and interzonal airflow. Cumulative particle counts for six particle sizes, and formaldehyde and other Top 20 VOC concentrations were measured in multiple zones. The testing showed that single-point exhaust ventilation was inferior as a whole-house ventilation strategy. It was inferior because the source of outside air was not direct from outside, the ventilation air was not distributed, and no provision existed for air filtration. Indoor air recirculation by a central air distribution system can help improve the exhaust ventilation system by way of air mixing and filtration. In contrast, the supply and balanced ventilation systems showed that there is a significant benefit to drawing outside air from a known outside location, and filtering and distributing that air. Compared to the Exhaust systems, the CFIS and ERV systems showed better ventilation air distribution and lower concentrations of particulates, formaldehyde and other VOCs. System improvement percentages were estimated based on four System Factor Categories: Balance, Distribution, Outside Air Source, and Recirculation Filtration. Recommended System Factors could be applied to reduce ventilation fan airflow rates relative to ASHRAE Standard 62.2 to save energy and reduce moisture control risk in humid climates. HVAC energy savings were predicted to be 8-10%, or $50-$75/year.

Rudd, A.; Bergey, D.

2014-02-01T23:59:59.000Z

344

Air quality modelling as a supplementary assessment method in the framework of the European Air Quality Directive  

Science Journals Connector (OSTI)

According to the European Air Quality (AQ) Directive, member states must annually report their AQ to the European Commission (EC). This report can be based on modelling data if the concentration levels do not exceed the established lower assessment thresholds (LAT), or on combined data from modelling and monitoring systems (supplementary assessment methods) if concentrations levels are below the upper assessment threshold (UAT). This work presents and applies a methodology that combines air pollutant concentration values from monitored data and from a numerical modelling system to deliver AQ information for Portugal in 2010. This methodology produces improved information, especially for areas where the amount of fixed monitoring stations is sparse or non-existent, allowing obtaining a better and broader overview of the AQ in Portugal to support AQ reporting to the European Commission.

I. Ribeiro; A. Monteiro; A.P. Fernandes; A.C. Monteiro; M. Lopes; C. Borrego; A.I. Miranda

2014-01-01T23:59:59.000Z

345

Hadronic multiparticle production at ultrahigh energies and extensive air showers  

SciTech Connect (OSTI)

Studies of the nature of cosmic ray particles at the highest energies are based on the measurement of extensive air showers. Most cosmic ray properties can therefore be obtained only from the interpretation of air shower data and are thus dependent on predictions of hadronic interaction models at ultrahigh energies. We discuss different scenarios of model extrapolations from accelerator data to air shower energies and investigate their impact on the corresponding air shower predictions. To explore the effect of different extrapolations by hadronic interaction models we developed an ad hoc model. This model is based on the modification of the output of standard hadronic interaction event generators within the air shower simulation process and allows us to study the impact of changing interaction features on the air shower development. In a systematic study we demonstrate the resulting changes of important air shower observables and also discuss them in terms of the predictions of the Heitler model of air shower cascades. It is found that the results of our ad hoc modifications are, to a large extent, independent of the choice of the underlying hadronic interaction model.

Ulrich, Ralf; Engel, Ralph; Unger, Michael [Pennsylvania State University, Center for Particle Astrophysics, 104 Davey Laboratory, University Park, Pennsylvania 16802 (United States); Karlsruhe Institute of Technology (KIT), Institut fuer Kernphysik, P.O. Box 3640, 76021 Karlsruhe (Germany)

2011-03-01T23:59:59.000Z

346

Modeling of a Signal Processing System for Aircraft Air Data  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Modeling of a Signal Processing System for Aircraft Air Data Modeling of a Signal Processing System for Aircraft Air Data Instrumentation Speaker(s): Thomas John Rohloff Date: September 21, 1998 - 12:00pm Location: 90-3148 Seminar Host/Point of Contact: Joan M. Daisey The velocity, attitude and altitude of flight vehicles have typically been measured with booms that extend from the vehicle surface out into the flow field. However, this arrangement was found to be unacceptable for certain flight applications. Instrumentation was therefore developed by other researchers to measure the flight parameters using an array of pressure measurements located on the surface of the vehicle. The relationship between these pressure measurements and the air data is a complex non-linear function that is not easily described with simple aerodynamic

347

A Simple Oxygen Detector Using Zinc–Air Battery  

Science Journals Connector (OSTI)

Elementary/Middle School Science; High School/Introductory Chemistry; Demonstrations; Hands-On Learning/Manipulatives; Gases; Laboratory Equipment/Apparatus ... Therefore, Faraday’s law can be confirmed by measuring the change in the volume of O2 consumed or the gained mass of the zinc–air battery with increasing quantity of electricity in a circuit using the zinc–air battery as the power source. ... (2-4) At the operating voltage of the zinc–air battery (1.4 V), the electric current in a circuit, with a small resistance, linearly changes with respect to the atmospheric O2 concentration. ...

Yoong Kin Hooi; Masayoshi Nakano; Nobuyoshi Koga

2013-12-24T23:59:59.000Z

348

Prediction of Room Air Diffusion for Reduced Diffuser Flow Rates  

E-Print Network [OSTI]

modeling at the air supply device (ASHRAE Research Project RP -1009, ?Simplified Diffuser Boundary Conditions for Numerical Room Airflow Models, 2001) 2.2.4 Box model Nielsen (1989, 1992) proposed the box method with an imaginary box near.... Nielsen (1989, 13 1992). Results obtained from the box method are in good agreement with the measured data. Figure 5 Methods for momentum modeling in front of an air supply device (ASHRAE RP -1009, ?Simplified Diffuser Boundary Conditions...

Gangisetti, Kavita

2011-02-22T23:59:59.000Z

349

Implementation of the Laboratory Air Handling Unit Systems (LAHU)  

E-Print Network [OSTI]

Implementation of the Laboratory Air Handling Unit Systems (LAHU) Y. Cui Graduate Student Energy Systems Laboratory University of Nebraska-Lincoln Omaha, NE, USA M. Liu, Ph.D., P.E. Associate Professor Energy Systems Laboratory...-around coils [18, 19], the variable air volume (VAV) fume hoods [8-16] and the usage-based control devices (UBC) [17]. These measures have effectively reduced the cooling energy, preheat energy and fan power consumption, and sometime, improved indoor...

Cui, Y.; Liu, M.; Conger, K.

2003-01-01T23:59:59.000Z

350

Air Liquide - Biogas & Fuel Cells  

Broader source: Energy.gov (indexed) [DOE]

Liquide - Biogas & Fuel Cells Hydrogen Energy Biogas Upgrading Technology 12 June 2012 Charlie.Anderson@airliquide.com 2 Air Liquide, world leader in gases for industry,...

351

Nebraska Air Quality Regulations (Nebraska)  

Broader source: Energy.gov [DOE]

These regulations, promulgated by the Department of Environmental Quality, contain provisions pertaining to ambient air quality standards, pollution source operating permits, emissions reporting,...

352

Global air quality and climate  

E-Print Network [OSTI]

Chemistry and Climate Model Intercomparison Project (ACCMIP;of chemistry–climate models with RCP emissions thus projectto project air quality responses to future climate change

2012-01-01T23:59:59.000Z

353

Air Force Renewable Energy Programs  

Broader source: Energy.gov [DOE]

Presentation covers Air Force Renewable Energy Programs and is given at the Spring 2011 Federal Utility Partnership Working Group (FUPWG) meeting.

354

Reduce Air Infiltration in Furnaces  

Broader source: Energy.gov [DOE]

This tip sheet describes how to save process heating energy and costs by reducing air infiltration in industrial furnaces; tips include repairing leaks and increasing insulation.

355

Reactive Air Aluminization  

SciTech Connect (OSTI)

Ferritic stainless steels and other alloys are of great interest to SOFC developers for applications such as interconnects, cell frames, and balance of plant components. While these alloys offer significant advantages (e.g., low material and manufacturing cost, high thermal conductivity, and high temperature oxidation resistance), there are challenges which can hinder their utilization in SOFC systems; these challenges include Cr volatility and reactivity with glass seals. To overcome these challenges, protective coatings and surface treatments for the alloys are under development. In particular, aluminization of alloy surfaces offers the potential for mitigating both evaporation of Cr from the alloy surface and reaction of alloy constituents with glass seals. Commercial aluminization processes are available to SOFC developers, but they tend to be costly due to their use of exotic raw materials and/or processing conditions. As an alternative, PNNL has developed Reactive Air Aluminization (RAA), which offers a low-cost, simpler alternative to conventional aluminization methods.

Choi, Jung-Pyung; Chou, Y. S.; Stevenson, Jeffry W.

2011-10-28T23:59:59.000Z

356

Upper Hot Creek Ranch Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Upper Hot Creek Ranch Geothermal Area Upper Hot Creek Ranch Geothermal Area (Redirected from Upper Hot Creek Ranch Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Upper Hot Creek Ranch Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (2) 10 References Area Overview Geothermal Area Profile Location: Nevada Exploration Region: Northern Basin and Range Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure

357

Upper bound analysis for drag anchors in soft clay  

E-Print Network [OSTI]

This study presents an upper bound plastic limit analysis for predicting drag anchor trajectory and load capacity. The shank and fluke of the anchor are idealized as simple plates. The failure mechanism involves the motion of the anchor about a...

Kim, Byoung Min

2007-04-25T23:59:59.000Z

358

Wave-forced resuspension of upper Chesapeake Bay muds  

Science Journals Connector (OSTI)

Moored instruments were used to make observations of near bottom currents, waves, temperature, salinity, and turbidity at shallow (3.5 m and 5.5 m depth) dredged sediment disposal sites in upper Chesapeake Bay du...

Lawrence P. Sanford

1994-03-01T23:59:59.000Z

359

Buoyancy of the continental upper mantle Robyn K. Kelly  

E-Print Network [OSTI]

Buoyancy of the continental upper mantle Robyn K. Kelly Department of Geology and Geophysics, MIT). Received 21 June 2002; Revised 11 October 2002; Accepted 15 October 2002; Published 18 February 2003. Kelly

360

Upper-tropospheric moistening in response to anthropogenic warming  

Science Journals Connector (OSTI)

Upper-tropospheric moistening in response to anthropogenic warming 10.1073/pnas.1409659111 Eui-Seok Chung Brian Soden B. J. Sohn Lei Shi aRosenstiel School of Marine and Atmospheric Science, University of Miami, Miami...

Eui-Seok Chung; Brian Soden; B. J. Sohn; Lei Shi

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "upper air measurements" 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

Improvable upper bounds to the piezoelectric polaron ground state energy  

E-Print Network [OSTI]

It was shown that an infinite sequence of improving non-increasing upper bounds to the ground state energy (GSE) of a slow-moving piezoeletric polaron can be devised.

A. V. Soldatov

2014-12-31T23:59:59.000Z

362

Infiltration in the Upper Río Chagres Basin, Panama  

Science Journals Connector (OSTI)

Annual runoff hydrographs recorded by the Panama Canal Authority in the upper Río Chagres...Curve Number’ (CN) methodology. Specifically, variation curve of the CN was analyzed using rainfall and runoff observati...

Lucas E. Calvo; Fred L. Ogden; Jan M.H. Hendrickx

2005-01-01T23:59:59.000Z

363

Characterization of Sea Turtle Nesting on the Upper Texas Coast  

E-Print Network [OSTI]

Nearly annual record Kemp’s ridley sea turtle (Lepidochelys kempii) nesting activity on the upper Texas coast (UTC; defined as beaches from Sabine Pass to Matagorda Peninsula), where scientifically verifiable nesting commenced in 2002, has occurred...

Hughes, Christi Lynn

2014-05-06T23:59:59.000Z

364

August 24, 2010 11:3 B-936 b936-ch03 Air-Sea Interactions in Tropical Cyclones  

E-Print Network [OSTI]

, in the western parts of the oceanic basins where the ocean state is not at rest, strong currents (e.g., Kuroshio ocean current shears do not necessarily develop as in regions with shallow ocean mixed layers where made in the area of upper ocean responses and air-sea interactions during the passage of tropical

Miami, University of

365

Technology Solutions for New and Existing Homes: Air Leakage and Air Transfer Between Garage and Living Space  

Broader source: Energy.gov [DOE]

In this project, Building Science Corporation worked with production home builder K. Hovnanian to conduct testing at a single-family home in Waldorf, Maryland, constructed in accordance with the 2009 International Residential Code. The team used automated fan pressurization and pressure monitoring techniques to conduct a series of 25 tests to measure the garage and house air leakage and pressure relationships and the garage-to-house air leakage.

366

Building America Technology Solutions for New and Existing Homes: Air Leakage and Air Transfer Between Garage and Living Space  

Broader source: Energy.gov [DOE]

In this project, Building Science Corporation worked with production home builder K. Hovnanian to conduct testing at a single-family home in Waldorf, Maryland, constructed in accordance with the 2009 International Residential Code. The team used automated fan pressurization and pressure monitoring techniques to conduct a series of 25 tests to measure the garage and house air leakage and pressure relationships and the garage-to-house air leakage.

367

An upper bound for the proton temperature anisotrophy  

SciTech Connect (OSTI)

This tutorial describes recent research concerning the upper bound on the hot proton temperature anisotropy imposed by wave-particle scattering due to enhanced fluctuations from the electromagnetic proton cyclotron anisotropy instability. This upper bound, which has been observed in both the magnetosheath and the outer magnetosphere, represents a limited closure relation for the equations of anisotropic magnetohydrodynamics. Such a closure relation has the potential to improve the predictive capability of large-scale anisotropic models of the magnetosphere.

Gary, S.P.

1994-11-01T23:59:59.000Z

368

An air line carries air at 800 kPa and 80C. An Air line ~ O O C insulated tank initially contains 20C air at a  

E-Print Network [OSTI]

An air line carries air at 800 kPa and 80°C. An Air line ~ O O C insulated tank initially contains 20°C air at a pressure of 90kPa. The valve is opened, and air flows into the tank. Determine the final temperature of the air in the tank and the mass of air that enters the tank if the valve is left

Huang, Haimei

369

Diurnal cycle of air pollution in the Kathmandu Valley, Nepal: Observations  

E-Print Network [OSTI]

During the dry season of 2004–2005 we carried out field measurements of air pollution and meteorology in the Kathmandu Valley, Nepal, a bowl-shaped urban basin in the Himalayan foothills of Nepal. We measured the trace ...

Panday, Arnico K.

370

Inhalation intake of ambient air pollution in California's South Coast Air Basin  

E-Print Network [OSTI]

the impacts on air pollution and health of urban areaas a proxy for air pollution health effects (Bennett etFuel combustion, air pollution exposure, and health: The

Marshall, Julian D.; Granvold, Patrick W.; Hoats, Abigail S.; McKone, Thomas E.; Deakin, Elizabeth; Nazaroff, William W.

2006-01-01T23:59:59.000Z

371

Switching Surges and Air Insulation  

Science Journals Connector (OSTI)

...research-article Switching Surges and Air Insulation B. Jones Some thirteen years ago...reduction was noticed in the strength of air insulation when subjected to slowly rising positive...collected in high voltage laboratories. Insulation against switching surges is now seen...

1973-01-01T23:59:59.000Z

372

Protective supplied breathing air garment  

DOE Patents [OSTI]

A breathing air garment for isolating a wearer from hostile environments containing toxins or irritants includes a suit and a separate head protective enclosure or hood engaging a suit collar in sealing attachment. The hood and suit collar are cylindrically shaped and dimensioned to enable the wearer to withdraw his hands from the suit sleeves to perform manual tasks within the hood interior. Breathing air is supplied from an external air line with an air delivery hose attached to the hood interior. The hose feeds air into an annular halo-like fiber-filled plenum having spaced discharge orifices attached to the hood top wall. A plurality of air exhaust/check valves located at the suit extremities cooperate with the hood air delivery system to provide a cooling flow of circulating air from the hood throughout the suit interior. A suit entry seal provided on the suit rear torso panel permits access into the suit and is sealed with an adhesive sealing flap.

Childers, Edward L. (Lakewood, CO); von Hortenau, Erik F. (Golden, CO)

1984-07-10T23:59:59.000Z

373

Protective supplied breathing air garment  

DOE Patents [OSTI]

A breathing air garment is disclosed for isolating a wearer from hostile environments containing toxins or irritants includes a suit and a separate head protective enclosure or hood engaging a suit collar in sealing attachment. The hood and suit collar are cylindrically shaped and dimensioned to enable the wearer to withdraw his hands from the suit sleeves to perform manual tasks within the hood interior. Breathing air is supplied from an external air line with an air delivery hose attached to the hood interior. The hose feeds air into an annular halo-like fiber-filled plenum having spaced discharge orifices attached to the hood top wall. A plurality of air exhaust/check valves located at the suit extremities cooperate with the hood air delivery system to provide a cooling flow of circulating air from the hood throughout the suit interior. A suit entry seal provided on the suit rear torso panel permits access into the suit and is sealed with an adhesive sealing flap. 17 figs.

Childers, E.L.; Hortenau, E.F. von.

1984-07-10T23:59:59.000Z

374

High Efficiency Particulate Air Filters  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

High Efficiency Particulate Air (HEPA) Filters High Efficiency Particulate Air (HEPA) Filters Home Standards DOE Workshops Nuclear Air Cleaning Conference Proceedings Qualified Filter List News Items Related Sites HEPA Related Lessons Learned Contact Us HSS Logo High Efficiency Particulate Air Filters The HEPA Filter web site provides a forum for informing and reporting department-wide activities related to filtration and ventilation issues with special reference to the High Efficiency Particulate Air (HEPA) Filters' use, inspection, and testing. This site contains essentials of DOE HEPA filter test program, procedures, requirements and quality assurance aspects applicable to HEPA filters used in DOE facilities. This site contains information about the DOE-accepted Filter Test Facility and its management, operation and quality assuranceprogram.

375

NETL: IEP - Air Quality Research  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Home > Technologies > Coal & Power Systems > Innovations for Existing Plants > Air Quality Research Home > Technologies > Coal & Power Systems > Innovations for Existing Plants > Air Quality Research Innovations for Existing Plants Air Quality Research Ambient Monitoring Emissions Characterization Predictive Modeling & Evaluation Health Effects Regulatory Drivers Air Quality Research Reference Shelf The NETL Air Quality Research program is designed to resolve the scientific uncertainties associated with the atmospheric formation, distribution, and chemical transformation of pollutant emissions from today's coal-fired power plants, and to obtain a realistic assessment of the human health impacts of these emissions. Results of this research will help the DOE Office of Fossil Energy address policy questions regarding coal plant emissions and provide guidance for future emissions control R&D programs at

376

air conditioner | OpenEI  

Open Energy Info (EERE)

air conditioner air conditioner Dataset Summary Description View 2010 energy efficiency data from AeroSys Inc, Coaire, Cold Point, First Operations, LG Electronics, Nordyne, and Quietside manufacturers. Data includes cooling capacity, cooling performance, heating capacity, and heating performance. Spreadsheet was created by combining the tables in pdf files that are included in the zip file. Source Energy Applicance Data - United States Federal Trade Commission, www.ftc.gov Date Released Unknown Date Updated Unknown Keywords air conditioner central air conditioner efficiency efficient energy heat pump Data application/vnd.ms-excel icon 2010_CentralAC_All.xls (xls, 82.4 KiB) application/zip icon 2010CentralAirConditioner.zip (zip, 398.2 KiB) Quality Metrics Level of Review Some Review

377

Air Force Renewable Energy Programs  

Broader source: Energy.gov (indexed) [DOE]

1 1 Ken Gray P.E. HQ AFCESA /CENR Air Force Renewable Energy Programs April, 2011 FUPWG "Make Energy a Consideration in All We Do" I n t e g r i t y - S e r v i c e - E x c e l l e n c e THINK GREEN, BUILD GREEN, Topics  Air Force Energy Use  Air Force Facility Energy Center  Current RE Generation  Project Development System  Programmed RE Generation FY11-13  Goal Achievement 2 I n t e g r i t y - S e r v i c e - E x c e l l e n c e THINK GREEN, BUILD GREEN, Air Force 2010 Energy Use The Air Force spent approximately $8.2 billion for energy in 2010; an increase of 22% from 2009 Energy Cost and Consumption Trends Energy Cost Breakdown Aviation 79% Facilities 17% 3 Aviation 84% Facilities 12% Vehicles & Equipment

378

Dispersion models and air quality data for population exposure assessment to air pollution  

Science Journals Connector (OSTI)

Evaluating the extent of exposure to chemicals in absence of continuous measurements of their concentration in air and direct measures of personal exposure is crucial for epidemiological studies. Dispersion models can be a useful tool for reproducing spatio-temporal distribution of contaminants emitted by a specific source. However, they cannot easily be applied to short-term epidemiological studies because they require precise information on daily emission scenarios for a long time, which are generally not available. The aim of this study was to better assess the exposure in the industrial area of Brindisi, which suffers from various critical epidemiological situations, by integrating air pollution concentration data, emissions and model simulations concerning a specific point source. The results suggest that in the absence of direct exposure data and detailed information on specific pollutants associated to an emission, population exposure may be better assessed by taking into account proxy pollutants and the wind (direction and speed) as a potential health effects modifier.

Cristina Mangia; Marco Cervino; Emilio Antonio Luca Gianicolo

2014-01-01T23:59:59.000Z

379

Air Leakage and Air Transfer Between Garage and Living Space  

SciTech Connect (OSTI)

This research project focused on evaluation of air transfer between the garage and living space in a single-family detached home constructed by a production homebuilder in compliance with the 2009 International Residential Code and the 2009 International Energy Conservation Code. The project gathered important information about the performance of whole-building ventilation systems and garage ventilation systems as they relate to minimizing flow of contaminated air from garage to living space. A series of 25 multi-point fan pressurization tests and additional zone pressure diagnostic testing characterized the garage and house air leakage, the garage-to-house air leakage, and garage and house pressure relationships to each other and to outdoors using automated fan pressurization and pressure monitoring techniques. While the relative characteristics of this house may not represent the entire population of new construction configurations and air tightness levels (house and garage) throughout the country, the technical approach was conservative and should reasonably extend the usefulness of the results to a large spectrum of house configurations from this set of parametric tests in this one house. Based on the results of this testing, the two-step garage-to-house air leakage test protocol described above is recommended where whole-house exhaust ventilation is employed. For houses employing whole-house supply ventilation (positive pressure) or balanced ventilation (same pressure effect as the Baseline condition), adherence to the EPA Indoor airPLUS house-to-garage air sealing requirements should be sufficient to expect little to no garage-to-house air transfer.

Rudd, A.

2014-09-01T23:59:59.000Z

380

Benthic Assemblage Variability in the Upper San Francisco Estuary: A 27-Year Retrospective  

E-Print Network [OSTI]

and sediments along a salinity gradient in the upper Forthalong estuarine salinity gradients. Journal of Marinestations located along a salinity gradient in the upper San

Peterson, Heather A; Vayssieres, Marc

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "upper air measurements" 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

Implications of the UHECRs penetration depth measurements  

E-Print Network [OSTI]

The simple interpretation of PAO's UHECRs' penetration depth measurements suggests a transition at the energy range $1.1 - 35 \\cdot 10^{18} $ eV from protons to heavier nuclei. A detailed comparison of this data with air shower simulations reveals strong restrictions on the amount of light nuclei (protons and He) in the observed flux. We find a robust upper bound on the observed proton fraction of the UHECRs flux and we rule out a composition dominated by protons and He. Acceleration and propagation effects lead to an observed composition that is different from the one at the source. Using a simple toy model that take into account these effects, we show that the observations requires an extreme metallicity at the sources with metals to protons mass ratio of 1:1, a ratio that is larger by a factor of a hundred than the solar abundance. This composition imposes an almost impossible constraint on all current astrophysical models for UHECRs accelerators. This may provide a first hint towards new physics that emerges at $\\sim 100$ TeV and leads to a larger proton cross section at these energies.

Nimrod Shaham; Tsvi Piran

2012-04-06T23:59:59.000Z

382

Advanced chemistry-transport modeling and observing systems allow daily air quality observations, short-term forecasts, and real-time analyses of air quality at the global and  

E-Print Network [OSTI]

Advanced chemistry-transport modeling and observing systems allow daily air quality observations, short-term forecasts, and real-time analyses of air quality at the global and European scales control measures that could be taken for managing such episodes, European-scale air quality forecasting

Paris-Sud XI, Université de

383

Analysis of a Dedicated Outdoor Air System and Low Temperature Supply Air Conditioning System  

E-Print Network [OSTI]

This paper presents the principles and the characteristics of a dedicated outdoor air system (DOAS) and low temperature supply air system. DOAS is offered based on the demands of indoor air quality and the low temperature supply air system...

Guang, L.; Li, R.

2006-01-01T23:59:59.000Z

384

Radiative Heating of the ISCCP Upper Level Cloud Regimes and its Impact on the Large-scale Tropical Circulation  

SciTech Connect (OSTI)

Radiative heating profiles of the International Satellite Cloud Climatology Project (ISCCP) cloud regimes (or weather states) were estimated by matching ISCCP observations with radiative properties derived from cloud radar and lidar measurements from the Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) sites at Manus, Papua New Guinea, and Darwin, Australia. Focus was placed on the ISCCP cloud regimes containing the majority of upper level clouds in the tropics, i.e., mesoscale convective systems (MCSs), deep cumulonimbus with cirrus, mixed shallow and deep convection, and thin cirrus. At upper levels, these regimes have average maximum cloud occurrences ranging from 30% to 55% near 12 km with variations depending on the location and cloud regime. The resulting radiative heating profiles have maxima of approximately 1 K/day near 12 km, with equal heating contributions from the longwave and shortwave components. Upper level minima occur near 15 km, with the MCS regime showing the strongest cooling of 0.2 K/day and the thin cirrus showing no cooling. The gradient of upper level heating ranges from 0.2 to 0.4 K/(day?km), with the most convectively active regimes (i.e., MCSs and deep cumulonimbus with cirrus) having the largest gradient. When the above heating profiles were applied to the 25-year ISCCP data set, the tropics-wide average profile has a radiative heating maximum of 0.45Kday-1 near 250 hPa. Column-integrated radiative heating of upper level cloud accounts for about 20% of the latent heating estimated by the Tropical Rainfall Measuring Mission (TRMM) Precipitation Radar (PR). The ISCCP radiative heating of tropical upper level cloud only slightly modifies the response of an idealized primitive equation model forced with the tropics-wide TRMM PR latent heating, which suggests that the impact of upper level cloud is more important to large-scale tropical circulation variations because of convective feedbacks rather than direct forcing by the cloud radiative heating profiles. However, the height of the radiative heating maxima and gradient of the heating profiles are important to determine the sign and patterns of the horizontal circulation anomaly driven by radiative heating at upper levels.

Li, Wei; Schumacher, Courtney; McFarlane, Sally A.

2013-01-31T23:59:59.000Z

385

List of Room Air Conditioners Incentives | Open Energy Information  

Open Energy Info (EERE)

Conditioners Incentives Conditioners Incentives Jump to: navigation, search The following contains the list of 112 Room Air Conditioners Incentives. CSV (rows 1 - 112) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active AEP Ohio - Commercial New Construction Energy Efficiency Rebate Program (Ohio) Utility Rebate Program Ohio Commercial Industrial Local Government Municipal Utility Nonprofit Schools State Government Central Air conditioners Chillers Comprehensive Measures/Whole Building Custom/Others pending approval Energy Mgmt. Systems/Building Controls Heat pumps Lighting Lighting Controls/Sensors Motor VFDs Motors Water Heaters Commercial Cooking Equipment Commercial Refrigeration Equipment Room Air Conditioners Yes Alexandria Light and Power - Residential Energy Efficiency Rebate Program (Minnesota) Utility Rebate Program Minnesota Residential Central Air conditioners

386

List of Central Air conditioners Incentives | Open Energy Information  

Open Energy Info (EERE)

Central Air conditioners Incentives Central Air conditioners Incentives Jump to: navigation, search The following contains the list of 1032 Central Air conditioners Incentives. CSV (rows 1-500) CSV (rows 501-1000) CSV (rows 1001-1032) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active AEP (Central and North) - CitySmart Program (Texas) Utility Rebate Program Texas Commercial Industrial Institutional Local Government Schools Boilers Central Air conditioners Chillers Comprehensive Measures/Whole Building Custom/Others pending approval Energy Mgmt. Systems/Building Controls Furnaces Heat pumps Lighting Lighting Controls/Sensors Motor VFDs Motors Roofs Windows Yes AEP (Central and SWEPCO) - Coolsaver A/C Tune Up (Texas) Utility Rebate Program Texas Commercial Installer/Contractor

387

From Borne On Air: Essays by Idaho Writers, Mary Clearman Blew and Phil Druker, eds. (Cheney, WA: Eastern  

E-Print Network [OSTI]

, it becomes steam, then smoke, then fire, then sky, and then the heavens themselves. As air becomes condensed Anaximander's challenge to Thales head-on: all elements of the universe display the qualities of air determined that air is a god and that it comes to be and is without measure, infinite and always in motion

Nelson, Michael P.

388

In-Vehicle Exposures to Particulate Air Pollution in Canadian Metropolitan Areas: The Urban Transportation Exposure Study  

Science Journals Connector (OSTI)

In-Vehicle Exposures to Particulate Air Pollution in Canadian Metropolitan Areas: The Urban Transportation Exposure Study ... Commuters may be exposed to increased levels of traffic-related air pollution owing to close proximity to traffic-emissions. ... We collected in-vehicle and roof-top air pollution measurements over 238 commutes in Montreal, Toronto, and Vancouver, Canada between 2010 and 2013. ...

Scott Weichenthal; Keith Van Ryswyk; Ryan Kulka; Liu Sun; Lance Wallace; Lawrence Joseph

2014-12-03T23:59:59.000Z

389

Matroidal structure of covering-based rough sets through the upper approximation number  

Science Journals Connector (OSTI)

Covering-based rough set theory is a generalisation of rough set theory. Matroids are based on linear algebra and graph theory, and have a variety of applications in many fields. In this paper, we introduce matroid theory to covering-based rough sets, and explore the matroidal structure and properties of covering-based rough sets. Specifically, we define the upper approximation number to establish the matroidal structure of covering-based rough sets. So many important concepts and methods in matroid theory can be employed to investigate covering-based rough sets. The rank plays a very important role in a matrix, so we use the rank function of the matroid induced by a covering to measure the covering. With the rank function, a pair of approximation operators, namely, matroid approximation operators, are constructed. This type of approximation operators not only inherits the properties of those traditional ones which are defined from the perspective of set theory, but also presents some new properties. Finally, the matroid upper approximations are compared with the second upper approximations in covering-based rough sets.

Shiping Wang; William Zhu

2011-01-01T23:59:59.000Z

390

Supply Fan Control for Constant Air Volume Air Handling Units  

E-Print Network [OSTI]

Since terminal boxes do not have a modulation damper in constant volume (CV) air handling unit (AHU) systems, zone reheat coils have to be modulated to maintain the space temperature with constant supply airflow. This conventional control sequence...

Cho, Y.; Wang, G.; Liu, M.

2007-01-01T23:59:59.000Z

391

2011 Air Quality Regulations Report | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Air Quality Regulations Report 2011 Air Quality Regulations Report 2011 Air Quality Regulations Report120111.pdf More Documents & Publications 2011:...

392

Central Air Conditioning | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Central Air Conditioning Central Air Conditioning Central Air Conditioning May 30, 2012 - 8:01pm Addthis Central air conditioners circulate cool air through a system of supply and return ducts. | Photo courtesy of ©iStockphoto/DonNichols. Central air conditioners circulate cool air through a system of supply and return ducts. | Photo courtesy of ©iStockphoto/DonNichols. What does this mean for me? Central air conditioning systems are thermostatically controlled and convenient to use. Central air conditioning systems must be installed properly to operate efficiently. Central air conditioning systems can share ductwork with your heating system. Central air conditioners circulate cool air through a system of supply and return ducts. Supply ducts and registers (i.e., openings in the walls,

393

Tips: Sealing Air Leaks | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Sealing Air Leaks Sealing Air Leaks Tips: Sealing Air Leaks May 16, 2013 - 5:03pm Addthis Sources of Air Leaks in Your Home. Areas that leak air into and out of your home cost you a lot of money. The areas listed in the illustration are the most common sources of air leaks. Sources of Air Leaks in Your Home. Areas that leak air into and out of your home cost you a lot of money. The areas listed in the illustration are the most common sources of air leaks. Air leaks can waste a lot of your energy dollars. One of the quickest energy-- and money-saving tasks you can do is caulk, seal, and weather strip all seams, cracks, and openings to the outside. Tips for Sealing Air Leaks Test your home for air tightness. On a windy day, carefully hold a lit incense stick or a smoke pen next to your windows, doors, electrical

394

Tips: Sealing Air Leaks | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Tips: Sealing Air Leaks Tips: Sealing Air Leaks Tips: Sealing Air Leaks May 16, 2013 - 5:03pm Addthis Sources of Air Leaks in Your Home. Areas that leak air into and out of your home cost you a lot of money. The areas listed in the illustration are the most common sources of air leaks. Sources of Air Leaks in Your Home. Areas that leak air into and out of your home cost you a lot of money. The areas listed in the illustration are the most common sources of air leaks. Air leaks can waste a lot of your energy dollars. One of the quickest energy-- and money-saving tasks you can do is caulk, seal, and weather strip all seams, cracks, and openings to the outside. Tips for Sealing Air Leaks Test your home for air tightness. On a windy day, carefully hold a lit incense stick or a smoke pen next to your windows, doors, electrical

395

Room Air Conditioners | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Room Air Conditioners Room Air Conditioners Room Air Conditioners July 1, 2012 - 5:35pm Addthis A window air conditioner is one solution to cooling part of a house. | Photo courtesy of ©iStockphoto/kschulze. A window air conditioner is one solution to cooling part of a house. | Photo courtesy of ©iStockphoto/kschulze. What does this mean for me? Room air conditioners are less expensive and disruptive to install than central air conditioning systems. Room air conditioners can be a cost-effective alternative to central air conditioning systems. How does it work? Room air conditioners work by cooling one part of your home. Room or window air conditioners cool rooms rather than the entire home or business. If they provide cooling only where they're needed, room air conditioners are less expensive to operate than central units, even though

396

Air Pollution and Epigenetics: Recent Findings  

Science Journals Connector (OSTI)

The health effects of ambient air pollution are well-described, but less is known ... , microRNA, and DNA methylation; along with air pollutant keywords: air pollution, benzo[a]pyrene, nitrogen dioxide, ozone...1

Carrie V. Breton; Amy N. Marutani

2014-03-01T23:59:59.000Z

397

DunoAir | Open Energy Information  

Open Energy Info (EERE)

DunoAir Jump to: navigation, search Name: DunoAir Place: Hessen, Germany Zip: 6865 VX Sector: Wind energy Product: Doorwerth-based wind project developer. References: DunoAir1...

398

Inertial impaction air sampling device  

DOE Patents [OSTI]

An inertial impactor to be used in an air sampling device for collection of respirable size particles in ambient air which may include a graphite furnace as the impaction substrate in a small-size, portable, direct analysis structure that gives immediate results and is totally self-contained allowing for remote and/or personal sampling. The graphite furnace collects suspended particles transported through the housing by means of the air flow system, and these particles may be analyzed for elements, quantitatively and qualitatively, by atomic absorption spectrophotometry. 3 figs.

Dewhurst, K.H.

1987-12-10T23:59:59.000Z

399

ENVITEC shows off air technologies  

SciTech Connect (OSTI)

The ENVITEC International Trade Fair for Environmental Protection and Waste Management Technologies, held in June in Duesseldorf, Germany, is the largest air pollution exhibition in the world and may be the largest environmental technology show overall. Visitors saw thousands of environmental solutions from 1,318 companies representing 29 countries and occupying roughly 43,000 square meters of exhibit space. Many innovations were displayed under the category, ``thermal treatment of air pollutants.`` New technologies include the following: regenerative thermal oxidizers; wet systems for removing pollutants; biological scrubbers;electrostatic precipitators; selective adsorption systems; activated-coke adsorbers; optimization of scrubber systems; and air pollution monitors.

McIlvaine, R.W.

1995-08-01T23:59:59.000Z

400

Inertial impaction air sampling device  

DOE Patents [OSTI]

An inertial impactor to be used in an air sampling device for collection of respirable size particles in ambient air which may include a graphite furnace as the impaction substrate in a small-size, portable, direct analysis structure that gives immediate results and is totally self-contained allowing for remote and/or personal sampling. The graphite furnace collects suspended particles transported through the housing by means of the air flow system, and these particles may be analyzed for elements, quantitatively and qualitatively, by atomic absorption spectrophotometry.

Dewhurst, Katharine H. (13150 Wenonah SE. Apt. 727, Albuquerque, NM 87123)

1990-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "upper air measurements" 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

Inertial impaction air sampling device  

DOE Patents [OSTI]

An inertial impactor is designed which is to be used in an air sampling device for collection of respirable size particles in ambient air. The device may include a graphite furnace as the impaction substrate in a small-size, portable, direct analysis structure that gives immediate results and is totally self-contained allowing for remote and/or personal sampling. The graphite furnace collects suspended particles transported through the housing by means of the air flow system, and these particles may be analyzed for elements, quantitatively and qualitatively, by atomic absorption spectrophotometry. 3 figs.

Dewhurst, K.H.

1990-05-22T23:59:59.000Z

402

Air pollution kills. So what? Air quality engineering to improve public health  

E-Print Network [OSTI]

9/14/12 1 Air pollution kills. So what? Air quality engineering to improve public health;9/14/12 5 Health benefits from reducing PM2.5 "Each 10 µg m-3 elevation in fine particle air pollution;9/14/12 2 Air Quality Engineering H Air Quality Engineering H #12;9/14/12 3 Really? Air pollution

Levinson, David M.

403

WearAir: Expressive T-shirts for Air Quality Sensing Sunyoung Kim and Eric Paulos  

E-Print Network [OSTI]

are less proactively concerned with air quality. AIR POLLUTANT: VOLATILE ORGANIC COMPOUNDS Different types of air pollutants contribute to air quality in different locations: Ozone, CO, NOx and VOCs are major contributors to outdoor air pollution; and particulate matters, VOCs, carbon monoxide and lead are common air

Mankoff, Jennifer

404

Thermal and air quality acceptability in buildings that reduce energy by reducing minimun airflow from overhead diffusers  

E-Print Network [OSTI]

energy measurement meters in all air conditioning units ofmeasurement .. 83 Energy Savings Analysis . 85 Method 85 Extrapolated gas energy savings 90 Extrapolated annual AC unit

2012-01-01T23:59:59.000Z

405

Non-doubling Ahlfors measures, Perimeter measures, and the ...  

E-Print Network [OSTI]

The X-perimeter of a C1,1 domain is an upper 1-Ahlfors measure. 39 ... Failure of the 1-Ahlfors condition for the X-perimeter of C1,? domains 55. Chapter 7. ...... + mr the topological dimension of G. The notation {ej,1, ..., ej,mj }, j = 1, ..., r, will.

2005-11-29T23:59:59.000Z

406

Measurement-Measurement-  

E-Print Network [OSTI]

Internet Measurement- System A Measurement- System B Control System GPS Satellite GPS Satellite GPS Receiver GPS Receiver 2) measurement 3) data1) command Methodology for One-way IP Performance Measurement This paper proposes a methodology for measurement of one-way IP performance metrics such as one-way delay

Jeong, Jaehoon "Paul"

407

Degradation characteristics of air cathode in zinc air fuel cells  

Science Journals Connector (OSTI)

Abstract The zinc air fuel cell (ZAFC) is a promising candidate for electrical energy storage and electric vehicle propulsion. However, its limited durability has become a major obstacle for its successful commercialization. In this study, 2-cell stacks, 25 cm² cells and three-electrode half-cells are constructed to experimentally investigate the degradation characteristics of the air cathode. The results of electrochemical tests reveal that the peak power density for the 25 cm2 cell with a new air cathode is 454 mW cm?2, which is twice as the value of the used air cathode. The electrochemical impedance analysis shows that both the charge transfer resistance and the mass transfer resistance of the used air cathodes have increased, suggesting that the catalyst surface area and gas diffusion coefficient have decreased significantly. Additionally, the microstructure and morphology of the catalytic layer (CL) and gas diffusion layer (GDL) are characterized by scanning electron microscopes (SEM). SEM results confirm that the micropores in CL and GDL of the used air cathode are seriously clogged, and many catalyst particles are lost. Therefore, the performance degradation is mainly due to the clogging of micropores and loss of catalyst particles. Furthermore, hypotheses of degradation mechanism and mitigation strategies for GDL and CL are discussed briefly.

Ze Ma; Pucheng Pei; Keliang Wang; Xizhong Wang; Huachi Xu; Yongfeng Liu; Guanlin peng

2015-01-01T23:59:59.000Z

408

Generation of concentration density maxima of small dispersive coal dust particles in horizontal iodine air filter at air-dust aerosol blow  

E-Print Network [OSTI]

The spatial distributions of the small dispersive coal dust particles with the nano and micro sizes in the granular filtering medium with the cylindrical coal granules in the absorber in the horizontal iodine air filter during its long term operation at the nuclear power plant are researched. It is shown that the concentration density maxima of the small dispersive coal dust particles appear in the granular filtering medium with the cylindrical coal absorbent granules in the horizontal iodine air filter at an action by the air dust aerosol blow. The comparison of the measured aerodynamic resistances of the horizontal and vertical iodine air filters is conducted. The main conclusion is that the magnitude of the aerodynamic resistance of the horizontal iodine air filters is much smaller in comparison with the magnitude of the aerodynamic resistance of the vertical iodine air filters at the same loads of the air dust aerosol volumes. It is explained that the direction of the air dust aerosol blow and the direction of the gravitation force in the horizontal iodine air filter are orthogonal, hence the effective accumulation of the small dispersive coal dust particles takes place at the bottom of absorber in the horizontal iodine air filter. It is found that the air dust aerosol stream flow in the horizontal iodine air filter is not limited by the appearing structures, made of the precipitated small dispersive coal dust particles, in distinction from the vertical iodine air filter, in the process of long term operation of the iodine air filters at the nuclear power plant.

I. M. Neklyudov; O. P. Ledenyov; L. I. Fedorova; P. Ya. Poltinin

2013-06-11T23:59:59.000Z

409

Integrated Technology Air Cleaners (ITAC): Design and Evaluation  

E-Print Network [OSTI]

of particle air filtration technologies." Indoor Air 12(4):2011a). New air cleaning technologies for reduced commercialnumber 2 Integrated technology air cleaner High efficiency

Fisk, William J.

2014-01-01T23:59:59.000Z

410

Are Ventilation Filters Degrading Indoor Air Quality in California Classrooms?  

E-Print Network [OSTI]

air conditioning  IAQ: Indoor air quality  LBNL: Lawrence Degrading Indoor Air Quality in California Classrooms? HDEGRADING INDOOR AIR QUALITY IN CALIFORNIA CLASSROOMS?

Fisk, Michael G. Apte and William J.

2009-01-01T23:59:59.000Z

411

Air Monitoring of Emissions from the Fukushima Daiichi Reactor  

SciTech Connect (OSTI)

In response to the disasters in Japan on March 11, 2011, and the subsequent emissions from Fukushima-Daiichi, we monitored the air near Los Alamos using four air-monitoring systems: the standard AIRNET samplers, the standard rad-NESHAP samplers, the NEWNET system, and high-volume air samplers. Each of these systems has advantages and disadvantages. In combination, they provide a comprehensive set of measurements of airborne radionuclides near Los Alamos during the weeks following March 11. We report air-monitoring measurements of the fission products released from the Fukushima-Daiichi nuclear-power-plant accident in 2011. Clear gamma-spectrometry peaks were observed from Cs-134, Cs-136, Cs-137, I-131, I132, Te-132, and Te-129m. These data, together with measurements of other radionuclides, are adequate for an assessment and assure us that radionuclides from Fukushima Daiichi did not present a threat to human health at or near Los Alamos. The data demonstrate the capabilities of the Los Alamos air-monitoring systems.

McNaughton, Michael [Los Alamos National Laboratory; Allen, Shannon P. [Los Alamos National Laboratory; Archuleta, Debra C. [Los Alamos National Laboratory; Brock, Burgandy [Los Alamos National Laboratory; Coronado, Melissa A. [Los Alamos National Laboratory; Dewart, Jean M. [Los Alamos National Laboratory; Eisele, William F. Jr. [Los Alamos National Laboratory; Fuehne, David P. [Los Alamos National Laboratory; Gadd, Milan S. [Los Alamos National Laboratory; Green, Andrew A. [Los Alamos National Laboratory; Lujan, Joan J. [Los Alamos National Laboratory; MacDonell, Carolyn [Los Alamos National Laboratory; Whicker, Jeffrey J. [Los Alamos National Laboratory

2012-06-12T23:59:59.000Z

412

Upper Hot Creek Ranch Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Upper Hot Creek Ranch Geothermal Area Upper Hot Creek Ranch Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Upper Hot Creek Ranch Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (2) 10 References Area Overview Geothermal Area Profile Location: Nevada Exploration Region: Northern Basin and Range Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed.

413

Smart SCADA system for urban air pollution monitoring  

Science Journals Connector (OSTI)

Abstract There are a number of different types of monitoring stations for checking air quality levels in urban environments. These monitoring stations usually just perform data acquisition of the measured values from the sensors and store them in the database. The processing of the measured results as well as the statistical analysis is mainly done in other places where the data come from various communication systems. Acquisition of the measured data is commonly done on-line while the processing and statistical analysis is performed off-line. As opposed to these measurement systems, this implemented device enables the acquisition and statistical processing of the measured data in real time and the results are instantly available to all users. The system indicates the air pollutants using the ARMA model. The transmission of information in the realized smart SCADA system is done by the Modbus protocol using shared variables which gives the whole system a stronger hierarchical structure.

Josif Tomi?; Miodrag Kušljevi?; Milan Vidakovi?; Vladimir Rajs

2014-01-01T23:59:59.000Z

414

Radionuclide Air Emissions Report for 2012  

E-Print Network [OSTI]

Air Emissions Annual Reports for DOE Sites,” memo tooffices providing guidance for report preparation (March 22,470E-2012 Radionuclide Air Emission Report for Prepared by

Wahl, Linnea

2014-01-01T23:59:59.000Z

415

Covered Product Category: Room Air Conditioners | Department...  

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

Specifications website. Buying Energy-Efficient Room Air Conditioners When buying room air conditioners directly from commercial sources, choose models that are ENERGY...

416

Aire Valley Environmental | Open Energy Information  

Open Energy Info (EERE)

search Name: Aire Valley Environmental Place: United Kingdom Product: Leeds-based waste-to-energy project developer. References: Aire Valley Environmental1 This article...

417

Air Quality Modeling's Brave New World  

Science Journals Connector (OSTI)

Air Quality Modeling's Brave New World ... A new generation of software systems is set to tackle regional and multipollutant air quality issues. ...

Elaine L. Appleton

2011-06-07T23:59:59.000Z

418

Colorado Air Pollution Control Division - Construction Permits...  

Open Energy Info (EERE)

Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Colorado Air Pollution Control Division - Construction Permits Forms and Air Pollutant Emission...

419

Energy performance of underfloor air distribution systems  

E-Print Network [OSTI]

loss of control of the supply air temperature from the loss of control of the  supply air temperature from the 

Bauman, Fred; Webster, Tom; Linden, Paul; Buhl, Fred

2007-01-01T23:59:59.000Z

420

Mountain Air | Open Energy Information  

Open Energy Info (EERE)

Air Air Jump to: navigation, search Name Mountain Air Facility Mountain Air Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Terna Energy Developer Terna Energy Energy Purchaser Idaho Power Location Hammett ID Coordinates 42.98719519°, -115.3985024° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.98719519,"lon":-115.3985024,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "upper air measurements" 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

Missouri Air Conservation Law (Missouri)  

Broader source: Energy.gov [DOE]

This law's purpose is to maintain the purity of the air resources of the state to protect the health, general welfare and physical property of the people, maximum employment and the full industrial...

422

Kansas Air Quality Regulations (Kansas)  

Broader source: Energy.gov [DOE]

All new air contaminant emission sources or alterations to emission sources that are required to be reported shall be in compliance with all applicable emission control regulations at the time that...

423

Natural Air-Conditioning Systems  

Science Journals Connector (OSTI)

Recent research in summer air conditioning utilizing natural sources of coolness* are discussed. These systems are classified according to the sources of coolness, the modes of heat transfer and airflow, and t...

Mehdi N. Bahadori

1986-01-01T23:59:59.000Z

424

ARM - Lesson Plans: Air Pressure  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

activity to work. It is important that students work carefully and slowly. A break in the seal between the cup and card allows air into the cup, causing the water to fall. Note: If...

426

Superfilamentation in air  

E-Print Network [OSTI]

The interaction between a large number of laser filaments brought together using weak external focusing leads to the emergence of few filamentary structures reminiscent of standard filaments, but carrying a higher intensity. The resulting plasma is measured to be one order of magnitude denser than for short-scale filaments. This new propagation regime is dubbed superfilamentation. Numerical simulations of a nonlinear envelope equation provide good agreement with experiments.

Point, Guillaume; Houard, Aurélien; Jukna, Vytautas; Milián, Carles; Carbonnel, Jérôme; Liu, Yi; Couairon, Arnaud; Mysyrowicz, André

2014-01-01T23:59:59.000Z

427

Heat balance for two commercial broiler barns with solar preheated ventilation air  

Science Journals Connector (OSTI)

In temperate climatic zones, solar air heaters can reduce heating loads, and increase winter ventilation rates thereby improving inside air quality and livestock performance without additional fuel input. A heat balance was carried out to measure bird heat production under field conditions on two commercial broiler barns to evaluate the impact of solar heated ventilation air on bird performance, and identify strategies to reduce winter heating load. Located 40 km east of Montreal, Canada, the experimental broiler barns were identically built with three floors housing 6500 birds per floor in an all-in all-out fashion. Equipped with solar air pre-heaters over their fresh air inlets, the barns were instrumented to monitor inlet, inside and outside air conditions, ventilation rate and heating system operating time. The effects on bird performance were observed from November 2007 to March 2009 by alternating their operation between the barns. The measured sensible and total heat productions of 4.5 W and 8.4 W, respectively, for 1 kg birds corresponded to laboratory measured values. Bird performance was not affected by the solar air pre-heaters which increased the ventilation rate above normal during only 20% of the daytime period. Room air temperature stratification resulted in 20–40 kW of heat losses during the winter, representing 25% of the total natural gas heat load. Because inside air moved directly to the fans, large and rapid increases in ventilation inlet air temperature, produced by the solar air pre-heaters, resulted in further heat losses equivalent to 15% of the solar energy recovered. Sustainable energy management in livestock barns requiring heating should incorporate an air mixing system to eliminate air temperature stratification and improve fan flows.

Sébastien Cordeau; Suzelle Barrington

2010-01-01T23:59:59.000Z

428

MODELING THE FATE AND TRANSPORT OF ATRAZINE IN THE UPPER CHESAPEAKE BAY  

E-Print Network [OSTI]

for agrochemicals in the Upper Chesapeake Bay. Keywords: Chesapeake Bay, hydrodynamic model, atrazine, photolysis

Frei, Allan

429

Common Air Conditioner Problems | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Common Air Conditioner Problems Common Air Conditioner Problems Common Air Conditioner Problems May 30, 2012 - 6:41pm Addthis A refrigerant leak is one common air conditioning problem. | Photo courtesy of ©iStockphoto/BanksPhotos. A refrigerant leak is one common air conditioning problem. | Photo courtesy of ©iStockphoto/BanksPhotos. What does this mean for me? You can eliminate the most common air conditioner problems before hiring an air conditioning technician. You can do some air conditioner maintenance and repair tasks yourself. One of the most common air conditioning problems is improper operation. If your air conditioner is on, be sure to close your home's windows and outside doors. For room air conditioners, isolate the room or a group of connected rooms as much as possible from the rest of your home.

430

Common Air Conditioner Problems | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Common Air Conditioner Problems Common Air Conditioner Problems Common Air Conditioner Problems May 30, 2012 - 6:41pm Addthis A refrigerant leak is one common air conditioning problem. | Photo courtesy of ©iStockphoto/BanksPhotos. A refrigerant leak is one common air conditioning problem. | Photo courtesy of ©iStockphoto/BanksPhotos. What does this mean for me? You can eliminate the most common air conditioner problems before hiring an air conditioning technician. You can do some air conditioner maintenance and repair tasks yourself. One of the most common air conditioning problems is improper operation. If your air conditioner is on, be sure to close your home's windows and outside doors. For room air conditioners, isolate the room or a group of connected rooms as much as possible from the rest of your home.

431

PROJECT TITLE: Evaluation of Seed and Fertilizer Opener Configurations for Optimizing Seed and Fertilizer Placement in Simultaneous, Single-Pass Operations with Air Drills under  

E-Print Network [OSTI]

to which crop root penetration is achieved. Root penetration measured after harvest for two air drill. These evaluations were conducted using the `Concord' air drill with seeding rate and overall fertilizer rate (70

Maxwell, Bruce D.

432

Large-scale recrystallization of the S-layer of Bacillus coagulans E38-66 at the air/water interface and on lipid films.  

Science Journals Connector (OSTI)

...into two-dimensional arrays either...air/water interface and on lipid...recrystallization at the interface could be monitored by measuring the increase...transfer of two-dimensional crystals from the air/ water interface to specimen...

D Pum; M Weinhandl; C Hödl; U B Sleytr

1993-05-01T23:59:59.000Z

433

The Structure of Idealized Upper-Tropospheric Shear Lines  

Science Journals Connector (OSTI)

The structure of idealized two-dimensional shear lines has been calculated for specified tropopause potential temperature anomalies. A cold anomaly corresponds to an intrusion of stratospheric air into the troposphere. A balanced hydrostatic ...

Martin Juckes

1999-08-01T23:59:59.000Z

434

Hybrid and Advanced Air Cooling Geothermal Lab Call Project | Open Energy  

Open Energy Info (EERE)

and Advanced Air Cooling Geothermal Lab Call Project and Advanced Air Cooling Geothermal Lab Call Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Hybrid and Advanced Air Cooling Project Type / Topic 1 Laboratory Call for Submission of Applications for Research, Development and Analysis of Geothermal Technologies Project Type / Topic 2 Air-Cooling Project Description Many geothermal power plants in the U.S. are air-cooled because of water limitations. NREL has worked with industry to explore various strategies for boosting the performance of air coolers in hot weather. Computer modeling and experimental measurements have been done on the use of evaporative media upstream of the air-cooled condensers at the Mammoth Lakes Power Plant. NREL has also analyzed the use of an air-cooled condenser in series with (i.e., upstream of) a water-cooled condenser and found that this can be beneficial for power cycles requiring desuperheating of the turbine exhaust vapor. Recently, the conventional power industry has developed an interest in operating water- and air-cooled condensers in parallel. This arrangement allows a small water cooler to reduce the heat transfer duty on the air cooler on hot summer days thereby allowing the condensing working fluid to make a much closer approach to the air dry bulb temperature.

435

Measuring Airflows at Registers in Residential Buildings  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Measuring Airflows at Registers in Residential Buildings Measuring Airflows at Registers in Residential Buildings Speaker(s): Cyril Guillot Date: August 29, 2002 - 12:00pm Location: Bldg. 90 Measuring airflows at registers is a central issue in all HVAC (Heating Ventilation and Air Conditioning) studies. It is a basic measurement that is required in many Cooling/Heating systems tests and in air conditioner performance diagnostics. These measurements can, for instance, be used to determine if individual rooms receive adequate airflow in terms of comfort, to estimate total air handler flow and supply/return imbalances, and to assess duct air leakage. First, I calibrated the Minneapolis Duct Blasters, useful in the most accurate flow hood we have, then I worked on an existing project: measuring airflows with laundry baskets. Finally, I

436

Register Closing Effects on Forced Air Heating System Performance  

SciTech Connect (OSTI)

Closing registers in forced air heating systems and leaving some rooms in a house unconditioned has been suggested as a method of quickly saving energy for California consumers. This study combined laboratory measurements of the changes in duct leakage as registers are closed together with modeling techniques to estimate the changes in energy use attributed to closing registers. The results of this study showed that register closing led to increased energy use for a typical California house over a wide combination of climate, duct leakage and number of closed registers. The reduction in building thermal loads due to conditioning only a part of the house was offset by increased duct system losses; mostly due to increased duct leakage. Therefore, the register closing technique is not recommended as a viable energy saving strategy for California houses with ducts located outside conditioned space. The energy penalty associated with the register closing technique was found to be minimized if registers furthest from the air handler are closed first because this tends to only affect the pressures and air leakage for the closed off branch. Closing registers nearer the air handler tends to increase the pressures and air leakage for the whole system. Closing too many registers (more than 60%) is not recommended because the added flow resistance severely restricts the air flow though the system leading to safety concerns. For example, furnaces may operate on the high-limit switch and cooling systems may suffer from frozen coils.

Walker, Iain S.

2003-11-01T23:59:59.000Z

437

LARGE ABUNDANCES OF POLYCYCLIC AROMATIC HYDROCARBONS IN TITAN'S UPPER ATMOSPHERE  

SciTech Connect (OSTI)

In this paper, we analyze the strong unidentified emission near 3.28 {mu}m in Titan's upper daytime atmosphere recently discovered by Dinelli et al. We have studied it by using the NASA Ames PAH IR Spectroscopic Database. The polycyclic aromatic hydrocarbons (PAHs), after absorbing UV solar radiation, are able to emit strongly near 3.3 {mu}m. By using current models for the redistribution of the absorbed UV energy, we have explained the observed spectral feature and have derived the vertical distribution of PAH abundances in Titan's upper atmosphere. PAHs have been found to be present in large concentrations, about (2-3) Multiplication-Sign 10{sup 4} particles cm{sup -3}. The identified PAHs have 9-96 carbons, with a concentration-weighted average of 34 carbons. The mean mass is {approx}430 u; the mean area is about 0.53 nm{sup 2}; they are formed by 10-11 rings on average, and about one-third of them contain nitrogen atoms. Recently, benzene together with light aromatic species as well as small concentrations of heavy positive and negative ions have been detected in Titan's upper atmosphere. We suggest that the large concentrations of PAHs found here are the neutral counterpart of those positive and negative ions, which hence supports the theory that the origin of Titan main haze layer is located in the upper atmosphere.

Lopez-Puertas, M.; Funke, B.; Garcia-Comas, M. [Instituto de Astrofisica de Andalucia (CSIC), E-18080 Granada (Spain); Dinelli, B. M. [ISAC-CNR, I-40129 Bologna (Italy); Adriani, A.; D'Aversa, E. [IAPS-INAF, I-00133 Rome (Italy); Moriconi, M. L. [ISAC-CNR, I-00133 Rome (Italy); Boersma, C.; Allamandola, L. J., E-mail: puertas@iaa.es [NASA Ames Research Center, Moffett Field, CA 94035-1000 (United States)

2013-06-20T23:59:59.000Z

438

Upper Midwest Food, Fuel and Fiber Network Tour  

E-Print Network [OSTI]

2nd Annual Upper Midwest Food, Fuel and Fiber Network Tour Aug. 31 ­ Sept. 2, 2010 #12;Tuesday, fuel, and fiber research. 8:15 p.m. Adjourn to University Plaza Hotel www.uphwl.com #12;Wednesday.m. Controlled Sub-Surface Drainage Dr. Eileen Kladivko, Department of Agronomy 2:00 p.m. Algae Wheel (Sewage

439

Scales and Effects of Fluid Flow in the Upper Crust  

Science Journals Connector (OSTI)

...subsurface reservoirs. The tapping of these reservoirs is the basis...drives the rock cycle and...and a soil porosity of 25...variations in permeability focus or...fracture porosity ofigneous rocks. Fluids...oil reservoirs. ModifiedUpper...can modify permeability and topography...

Lawrence M. Cathles III

1990-04-20T23:59:59.000Z

440

Remark on the coherent information saturating its upper bound  

E-Print Network [OSTI]

Coherent information is a useful concept in quantum information theory. It connects with other notions in data processing. In this short remark, we discuss the coherent information saturating its upper bound. A necessary and sufficient condition for this saturation is derived.

Lin Zhang

2012-08-25T23:59:59.000Z

Note: This page contains sample records for the topic "upper air measurements" 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

An unexpected cooling effect in Saturn's upper atmosphere  

Science Journals Connector (OSTI)

... The upper atmospheres of the four Solar System giant planets exhibit high temperatures that cannot be explained by the absorption of sunlight ... the absorption of sunlight. In the case of Saturn the temperatures predicted by models of solar heating are ?200?K, compared to temperatures of ?400?K observed independently in ...

C. G. A. Smith; A. D. Aylward; G. H. Millward; S. Miller; L. E. Moore

2007-01-25T23:59:59.000Z

442

Scales and Effects of Fluid Flow in the Upper Crust  

Science Journals Connector (OSTI)

...of these reservoirs is the basis...drives the rock cycle and...and a soil porosity of 25...variations in permeability focus or...Mesozoic sandstones, siltstones...fracture porosity ofigneous rocks. Fluids...oil reservoirs. ModifiedUpper...can modify permeability and topography...and water quality), and at...fracture porosity and permeability...

Lawrence M. Cathles III

1990-04-20T23:59:59.000Z

443

Scales and Effects of Fluid Flow in the Upper Crust  

Science Journals Connector (OSTI)

...of these reservoirs is the basis...drives the rock cycle and...and a soil porosity of 25...variations in permeability focus or...fracture porosity ofigneous rocks. Fluids...oil reservoirs. ModifiedUpper...can modify permeability and topography...and water quality), and at...fracture porosity and permeability...

Lawrence M. Cathles III

1990-04-20T23:59:59.000Z

444

Methane-derived hydrocarbons produced under upper-mantle conditions  

SciTech Connect (OSTI)

There is widespread evidence that petroleum originates from biological processes. Whether hydrocarbons can also be produced from abiogenic precursor molecules under the high-pressure, high-temperature conditions characteristic of the upper mantle remains an open question. It has been proposed that hydrocarbons generated in the upper mantle could be transported through deep faults to shallower regions in the Earth's crust, and contribute to petroleum reserves. Here we use in situ Raman spectroscopy in laser-heated diamond anvil cells to monitor the chemical reactivity of methane and ethane under upper-mantle conditions. We show that when methane is exposed to pressures higher than 2 GPa, and to temperatures in the range of 1,000-1,500 K, it partially reacts to form saturated hydrocarbons containing 2-4 carbons (ethane, propane and butane) and molecular hydrogen and graphite. Conversely, exposure of ethane to similar conditions results in the production of methane, suggesting that the synthesis of saturated hydrocarbons is reversible. Our results support the suggestion that hydrocarbons heavier than methane can be produced by abiogenic processes in the upper mantle.

Kolesnikov, Anton; Kutcherov, Vladimir G.; Goncharov, Alexander F.; (CIW); (RITS)

2009-08-13T23:59:59.000Z

445

Simulating Sustainability: Conjunctive Land and Water Management in the Upper  

E-Print Network [OSTI]

Simulating Sustainability: Conjunctive Land and Water Management in the Upper Santa Cruz River Water Issue: Introduction and Context This research project addresses a chronic water management issue in Arizona: management and allocation of water supplies in areas undergoing rapid growth and land use changes

Fay, Noah

446

Combustion Safety for Appliances Using Indoor Air (Fact Sheet)  

SciTech Connect (OSTI)

This measure guideline covers how to assess and carry out the combustion safety procedures for appliances and heating equipment that uses indoor air for combustion in low-rise residential buildings. Only appliances installed in the living space, or in an area freely communicating with the living space, vented alone or in tandem with another appliance are considered here. A separate measure guideline addresses combustion appliances located either within the living space in enclosed closets or side rooms or outside the living space in an adjacent area like an attic or garage that use outdoor air for combustion. This document is for inspectors, auditors, and technicians working in homes where energy upgrades are being conducted whether or not air infiltration control is included in the package of measures being applied. In the indoor combustion air case, guidelines summarized here are based on language provided in several of the codes to establish minimum requirements for the space using simplified prescriptive measures. In addition, building performance testing procedures are provided by testing agencies. The codes in combination with the test procedures offer comprehensive combustion safety coverage to address safety concerns, allowing inexperienced residential energy retrofit inspectors to effectively address combustion safety issues and allow energy retrofits to proceed.

Not Available

2014-05-01T23:59:59.000Z

447

Introduction Air Quality and Nitrogen Dioxide  

E-Print Network [OSTI]

- Global update 2005. Primary sources of air pollutants include combustion products from power generationIntroduction Air Quality and Nitrogen Dioxide Air pollution can be defined as "the presence effects to man and/or the environment". (DEFRA) "Clean air is considered to be a basic requirement

448

INDOOR AIR QUALITY QUESTIONNAIRE HUMAN RESOURCES  

E-Print Network [OSTI]

INDOOR AIR QUALITY QUESTIONNAIRE HUMAN RESOURCES FORM Risk and Compliance | One Washington Square THE AIR QUALITY ISSUE AND LOCATION Name: Date: Department: Phone No: Work Location: Suspected Air Quality, humidity, drafts, stagnant air, odors)? Is there a history of flooding or water damage? If so, please list

Eirinaki, Magdalini

449

AIR QUALITY: Control Enters New Phase  

Science Journals Connector (OSTI)

AIR QUALITY: Control Enters New Phase ... Federal enforcement of air pollution is about to enter a new, more technically sophisticated, phase. ... Now air pollution control moves into the criteria and standards period, when numbers eventually will be the basis for enforcement and the country becomes zoned into 32 air quality regions. ...

1968-08-05T23:59:59.000Z

450

Indoor air quality bill opposed by EPA  

Science Journals Connector (OSTI)

Indoor air quality bill opposed by EPA ... Sen. George J. Mitchell (D.-Me.) has introduced a bill to protect the quality of indoor air. ... According to J. Craig Potter, assistant EPA administrator for air and radiation, the "Indoor Air Quality Act of 1987," S. 1629, is a bill whose time has not yet arrived. ...

LOIS EMBER

1987-12-07T23:59:59.000Z

451

Impacts of Western Area Power Administration`s power marketing alternatives on air quality and noise  

SciTech Connect (OSTI)

The Western Area Power Administration, which is responsible for marketing electricity produced at the hydroelectric power-generating facilities operated by the Bureau of Reclamation on the Upper Colorado River, has proposed changes in the levels of its commitment (sales) of long-term firm capacity and energy to its customers. This report describes (1) the existing conditions of air resources (climate and meteorology, ambient air quality, and acoustic environment) of the region potentially affected by the proposed action and (2) the methodology used and the results of analyses conducted to assess the potential impacts on air resources of the proposed action and the commitment-level alternatives. Analyses were performed for the potential impacts of both commitment-level alternatives and supply options, which include combinations of electric power purchases and different operational scenarios of the hydroelectric power-generating facilities.

Chun, K.C.; Chang, Y.S.; Rabchuk, J.A.

1995-05-01T23:59:59.000Z

452

Tips: Air Ducts | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Air Ducts Air Ducts Tips: Air Ducts June 24, 2013 - 7:23pm Addthis Air Ducts: Out of Sight, Out of Mind. The unsealed ducts in your attic and crawlspaces lose air, and uninsulated ducts lose heat -- wasting energy and money. Air Ducts: Out of Sight, Out of Mind. The unsealed ducts in your attic and crawlspaces lose air, and uninsulated ducts lose heat -- wasting energy and money. Your air ducts are one of the most important systems in your home, and if the ducts are poorly sealed or insulated they are likely contributing to higher energy bills. Your home's duct system is a branching network of tubes in the walls, floors, and ceilings; it carries the air from your home's furnace and central air conditioner to each room. Ducts are made of sheet metal, fiberglass, or other materials.

453

Air Breathing Direct Methanol Fuel Cell  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Air Breathing Direct Methanol Fuel Cell Air Breathing Direct Methanol Fuel Cell Air Breathing Direct Methanol Fuel Cell An air breathing direct methanol fuel cell is provided with a membrane electrode assembly, a conductive anode assembly that is permeable to air and directly open to atmospheric air, and a conductive cathode assembly that is permeable to methanol and directly contacting a liquid methanol source. Available for thumbnail of Feynman Center (505) 665-9090 Email Air Breathing Direct Methanol Fuel Cell An air breathing direct methanol fuel cell is provided with a membrane electrode assembly, a conductive anode assembly that is permeable to air and directly open to atmospheric air, and a conductive cathode assembly that is permeable to methanol and directly contacting a liquid methanol

454

Chapter 3 - The Science of Air Pollution  

Science Journals Connector (OSTI)

Abstract Air pollution is defined in various ways, with an introduction to numerous air pollutants in this chapter. The evolution of air pollution science, engineering, and technologies is discussed. The distinction between particulate matter and gaseous air pollutants is made. Particles are described physically, especially with regard to the importance of aerodynamic diameter in terms of human health effects. Stationary and mobile sources of air pollution are discussed, as well as the physical and chemical processes involved in chemical transformation and environmental fate. Air pollution engineering's evolution is considered. The chapter discusses in detail the development of air quality standards and the emergence of laws and regulations to address air pollution. The chapter concludes with a timeline of how air pollution has been perceived over history and how air pollution may change in the future.

Daniel Vallero

2014-01-01T23:59:59.000Z

455

Proceedings: Indoor Air 2005 REACTIONS BETWEEN OZONE AND BUILDING PRODUCTS: IMPACT ON  

E-Print Network [OSTI]

Proceedings: Indoor Air 2005 2118 REACTIONS BETWEEN OZONE AND BUILDING PRODUCTS: IMPACT ON PRIMARY of reactions of ozone on building products and on their emissions in indoor air. For this purpose, 12 building products were exposed to ozone in a dedicated experimental setup. The measured ozone removal rate

Paris-Sud XI, Université de

456

Experimental investigation of burning velocities of ultra-wet methane-air-steam mixtures  

E-Print Network [OSTI]

Experimental investigation of burning velocities of ultra-wet methane-air-steam mixtures Eric Abstract Global burning velocities of methane-air-steam mixtures are measured on prismatic laminar Bunsen flames and lifted turbulent V-flames for various preheating temperatures, equivalence ratios and steam

Paris-Sud XI, Université de

457

THE MUON CONTENT OF EXTENSIVE AIR SHOWERS WITH E 2 x 10 17  

E-Print Network [OSTI]

HE 3.4-7 THE MUON CONTENT OF EXTENSIVE AIR SHOWERS WITH E 2 x 10 17 EV. G.L. Cassiday, R. Cooper, S and the Michigan muon array are operating in coincidence, simultaneously measuring the energy, depth of shower maximum, and muon content of high energy (E 2 x 10 17 eV) extensive air showers. We present

458

Indoor air quality issues related to the acquisition of conservation in commercial buildings  

SciTech Connect (OSTI)

The quality of indoor air in commercial buildings is dependent on the complex interaction between sources of indoor pollutants, environmental factors within buildings such as temperature and humidity, the removal of air pollutants by air-cleaning devices, and the removal and dilution of pollutants from outside air. To the extent that energy conservation measures (ECMs) may affect a number of these factors, the relationship between ECMs and indoor air quality is difficult to predict. Energy conservation measures may affect pollutant levels in other ways. Conservation measures, such as caulking and insulation, may introduce sources of indoor pollutants. Measures that reduce mechanical ventilation may allow pollutants to build up inside structures. Finally, heating, ventilation, and air-conditioning (HVAC) systems may provide surface areas for the growth of biogenic agents, or may encourage the dissemination of pollutants throughout a building. Information about indoor air quality and ventilation in both new and existing commercial buildings is summarized in this report. Sick building syndrome and specific pollutants are discussed, as are broader issues such as ventilation, general mitigation techniques, and the interaction between energy conservation activities and indoor air quality. Pacific Northwest Laboratory (PNL) prepared this review to aid the Bonneville Power Administration (Bonneville) in its assessment of potential environmental effects resulting from conservation activities in commercial buildings. 76 refs., 2 figs., 19 tabs.

Baechler, M.C.; Hadley, D.L.; Marseille, T.J.

1990-09-01T23:59:59.000Z

459

Modeling of Air-Fuel Ratio Dynamics of Gasoline Combustion Engine with ARX Network  

E-Print Network [OSTI]

DS-06-1351 Modeling of Air-Fuel Ratio Dynamics of Gasoline Combustion Engine with ARX Network Tomás dynamics of gasoline engines during transient operation. With a collection of input-output data measured;Modeling of Air-Fuel Ratio Dynamics of Gasoline Combustion Engine with ARX Network I. INTRODUCTION

Johansen, Tor Arne

460

BP Oil Spill and Air Chemistry Crude oil contains various hydrocarbons  

E-Print Network [OSTI]

BP Oil Spill and Air Chemistry Crude oil contains various hydrocarbons NOAA and CIRES here at CU went to the oil spill in an aircraft that was equipped with instruments to measure the air quality. 1/3 of the oil dissolved into the water column (methane completely, benzene and ethane almost completely) Showed

Toohey, Darin W.

Note: This page contains sample records for the topic "upper air measurements" 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.


461

Production and propagation of heavy hadrons in air-shower simulators  

E-Print Network [OSTI]

Very energetic charm and bottom hadrons may be produced in the upper atmosphere when a primary cosmic ray or the leading hadron in an extensive air shower collide with a nucleon. At $E\\approx 10^8$ GeV their decay length becomes of the order of 10 km, implying that they tend to interact in the air instead of decaying. Since the inelasticity in these collisions is much smaller than the one in proton and pion collisions, there could be rare events where a heavy-hadron component transports a significant amount of energy deep into the atmosphere. We have developed a module for the detailed simulation of these processes and have included it in a new version of the air shower simulator AIRES. We study the frequency, the energy distribution and the depth of charm and bottom production, as well as the depth and the energy distribution of these quarks when they decay. As an illustration, we consider the production and decay of tau leptons (from $D_s$ decays) and the lepton flux at PeV energies from a 30 EeV proton primary. The proper inclusion of charm and bottom hadrons in AIRES opens the possibility to search for air-shower observables that are sensitive to heavy quark effects.

C. A. Garcia Canal; J. I. Illana; M. Masip; S. J. Sciutto

2013-05-01T23:59:59.000Z

462

An application of a meteorological data assimilation system to an air quality simulation  

SciTech Connect (OSTI)

The need to calculate air pollutant exposure metrics for longer time periods, i.e., seasonal and annual, has generated a need to conduct long-term simulations using regional-scale Eulerian air quality models. Hourly-resolved meteorological and micro-meteorological fields for an entire year are required as input to the air quality models. In this paper, the authors describe the application of a meteorological data assimilation system to provide high-quality fields to drive a regional air quality model. The process of assimilation blends multiple data sources (large-scale gridded data, surface and upper air observations, satellite imagery, and radar data) into a unified atmospheric representation. The authors have used an assimilation system developed at the Center for the Analysis and Prediction of Storms at the University of Oklahoma. The modeling domain covers most of North America and 1995 was chosen as the simulation year. The data used in the assimilation include the NCAR/NCEP global reanalysis fields combined with North American surface and radiosonde data. The authors will describe modifications made to the assimilation system to enable estimation of a number of air-quality related quantities not normally calculated, such as Monin-Obhukov length and friction velocity. While the system supports a state-of-the-art three-dimensional cloud and hydrometeor field analysis based on background fields, surface observations, satellite, and radar; a simpler approach was developed in this study to estimate cloud fractional coverage based on the gridded relative humidity values.

Moon, D.; Pai, P.

1999-07-01T23:59:59.000Z

463

Performance of unglazed solar ventilation air pre-heaters for broiler barns  

Science Journals Connector (OSTI)

Solar radiation is an interesting heat source for applications requiring a limited amount of energy, such as pre-heating cold fresh air used in venting livestock barns. The objective of this study was to evaluate the energy recovery efficiency of a solar air pre-heater consisting of an unglazed perforated black corrugated siding where the incoming fresh ventilation air picks up heat from its face and back. Installed on the southeast wall of two broiler barns located 40 km east of Montreal, Canada, the performance of solar air pre-heaters was monitored over 2 years. Sensors inside the barns monitored the temperature of the ambient air, that pre-heated by the solar collector and that exhausted by one of the three operating fans. An on-site weather station measured ambient air temperature, wind direction and velocity and radiation energy absorbed on a vertical plane parallel to the unglazed solar air pre-heaters. The measured vertical solar radiation value was used to evaluate the heat recovery efficiency of the unglazed solar air pre-heaters. Using data from the Varennes Environment Canada weather station located 30 km northwest, the solar sensors were found to measure the absorbed solar radiation with a maximum error of 7%, including differences in exterior air moisture. Unglazed, the efficiency of the solar air pre-heaters reached 65% for wind velocities under 2 m/s, but dropped below 25% for wind velocities exceeding 7 m/s. Nevertheless, the unglazed solar air pre-heaters were able to reduce the heating load especially in March of both years. Over a period starting in November and ending in March, the solar air heaters recovered an energy value equivalent to an annual return on investment of 4.7%.

Sébastien Cordeau; Suzelle Barrington

2011-01-01T23:59:59.000Z

464

Lessons learned in modeling Underfloor Air Distribution system  

E-Print Network [OSTI]

Underfloor Air Distribution (UFAD) Design Guide. Atlanta:for design cooling loads in underfloor air distribution (

Lee, Kwang Ho; Schiavon, Stefano; Webster, Tom; Bauman, Fred; Feng, Jingjuan; Hoyt, Tyler

2011-01-01T23:59:59.000Z

465

AIR-TIGHTNESS OF U.S. DWELLINGS: 0 LBL-35700 AIR-TIGHTNESS OF U.S. DWELLINGS*  

E-Print Network [OSTI]

.S. dwellings over the past decade; LBL has collect- ed the available data into its air leakage database. This report documents what is in that database and then uses that data to determine relevant leakage charac on to summarize the current measurements, it may be instructive to briefly review the history of fan

466

Considering Air Density in Wind Power Production  

E-Print Network [OSTI]

In the wind power production calculations the air density is usually considered as constant in time. Using the CIPM-2007 equation for the density of moist air as a function of air temperature, air pressure and relative humidity, we show that it is worth taking the variation of the air density into account, because higher accuracy can be obtained in the calculation of the power production for little effort.

Farkas, Zénó

2011-01-01T23:59:59.000Z

467

Considering Air Density in Wind Power Production  

E-Print Network [OSTI]

In the wind power production calculations the air density is usually considered as constant in time. Using the CIPM-2007 equation for the density of moist air as a function of air temperature, air pressure and relative humidity, we show that it is worth taking the variation of the air density into account, because higher accuracy can be obtained in the calculation of the power production for little effort.

Zénó Farkas

2011-03-11T23:59:59.000Z

468

Hazard Assessment of Chemical Air Contaminants Measured in Residences  

E-Print Network [OSTI]

Collection Methods, Health Effects Institute, Mickely LelandMatter Species, Health Effects Institute:HEI 130 Pt 2

Logue, J.M.

2010-01-01T23:59:59.000Z

469

Estimates of Uncertainty in multi-zoned air leakage measurements  

E-Print Network [OSTI]

electrically- heated multi- family buildings. Proc. ACEEEEnergy Analysis for Multi-family Buildings: A Case Study.an example of multi-family buildings. Further introductory

Hult, Erin L.

2014-01-01T23:59:59.000Z

470

AN INTERCOMPARISON OF TRACER GASES USED FOR AIR INFILTRATION MEASUREMENTS  

E-Print Network [OSTI]

Janssen, A.N. Pearman, Honeywell, Inc. , Minneapolis, MN,gas. TABLE Z Research Group Honeywell Princeton LBL LBL LBL

Grimsrud, D.T.

2011-01-01T23:59:59.000Z

471

Hazard Assessment of Chemical Air Contaminants Measured in Residences  

E-Print Network [OSTI]

implications for indoor nitrogen dioxide concentrations."concentrations of indoor nitrogen dioxide in Hamburg (westand concentrations of indoor nitrogen dioxide in Barcelona,

Logue, J.M.

2010-01-01T23:59:59.000Z

472

Analysis of Air Leakage Measurements from Residential Diagnostics Database  

E-Print Network [OSTI]

Inspection data entered by energy auditors are used as theefficiency upgrades. Energy auditors who collected thewere contributed mostly by energy auditors who performed the

Chan, W.R.

2014-01-01T23:59:59.000Z

473

Hazard Assessment of Chemical Air Contaminants Measured in Residences  

E-Print Network [OSTI]

defined a generally acceptable cancer risk level for HAPs.levels based on an acceptable level of risk. Thecalculate acceptable exposure concentration for cancer risk

Logue, J.M.

2010-01-01T23:59:59.000Z

474

Analysis of Air Leakage Measurements from Residential Diagnostics Database  

E-Print Network [OSTI]

Score inspection and energy audit data. RECS 2009 States 1.Manufactured Home Energy Audit (MHEA). Oak Ridge NationalHome inspection and energy audit data from the Home Energy

Chan, W.R.

2014-01-01T23:59:59.000Z

475

Hazard Assessment of Chemical Air Contaminants Measured in Residences  

E-Print Network [OSTI]

Conference & Exhibition Healthy Buildings 2009, Syracuse, NYConference & Exhibition Healthy Buildings 2009, Syracuse, NYproceedings from the 2009 Healthy Building Conference held

Logue, J.M.

2010-01-01T23:59:59.000Z

476

The measured energy impact of air leakage on a house  

E-Print Network [OSTI]

MODELS . Approach. Interpretation of the solar aperture Analysis of UAo value for both models. . . . . Results from the synthetic data runs of the STAM program. Network model with infiltration concept V EXPERIMENTAL SETUP Test house description... for differed solar apeiture value 4 2 STAM results using synthetic data with the solar aperture of 5 ma 39 and for differed UA value 40 5 I Channel numbers. 57 6. 1 File information of data set of tests done on the house which was in the original...

Vaidya, Shilpa Arvind

2012-06-07T23:59:59.000Z

477

U.S. Air Force Fact Sheet Air Force Reserve Officer Training Corps  

E-Print Network [OSTI]

for the Air Force. Personnel and Resources Air Force Reserve Officer Training Corps (ROTC) includes fourU.S. Air Force Fact Sheet Air Force Reserve Officer Training Corps Mission Develop Quality Leaders Reserve Officer Training Corps is the largest and oldest source of commissioned officers for the Air Force

Su, Xiao

478

AIRS Version 6 Release Level 2 Product User Guide AIRS/AMSU/HSB Version 6  

E-Print Network [OSTI]

AIRS Version 6 Release Level 2 Product User Guide Page 1 AIRS/AMSU/HSB Version 6 Level 2 Product Questions to: http://airs.jpl.nasa.gov/AskAirs #12;AIRS Version 6 Release Level 2 Product User Guide Page 2............................................................................................. 7 1.1 EXAMPLE: LEVEL 2 PHYSICAL RETRIEVAL PRODUCT FILE NAMES

Waliser, Duane E.

479

NAQSAT National Air Quality Site Assessment Tool NAQSAT National Air Quality Site Assessment Tool  

E-Print Network [OSTI]

NAQSAT National Air Quality Site Assessment Tool NAQSAT National Air Quality Site Assessment Tool Air Quality Assessment Tool For Livestock Producers & Advisors #12;NAQSAT The National Air Quality Dairymen National Air Quality Site Assessment Tool Benefits for Producers · Voluntarily and securely assess

480

Laser sheet light flow visualization for evaluating room air flowsfrom Registers  

SciTech Connect (OSTI)

Forced air heating and cooling systems and whole house ventilation systems deliver air to individual rooms in a house via supply registers located on walls ceilings or floors; and occasionally less straightforward locations like toe-kicks below cabinets. Ideally, the air velocity out of the registers combined with the turbulence of the flow, vectoring of air by register vanes and geometry of register placement combine to mix the supply air within the room. A particular issue that has been raised recently is the performance of multiple capacity and air flow HVAC systems. These systems vary the air flow rate through the distribution system depending on the system load, or if operating in a ventilation rather than a space conditioning mode. These systems have been developed to maximize equipment efficiency, however, the high efficiency ratings do not include any room mixing effects. At lower air flow rates, there is the possibility that room air will be poorly mixed, leading to thermal stratification and reduced comfort for occupants. This can lead to increased energy use as the occupants adjust the thermostat settings to compensate and parts of the conditioned space have higher envelope temperature differences than for the well mixed case. In addition, lack of comfort can be a barrier to market acceptance of these higher efficiency systems To investigate the effect on room mixing of reduced air flow rates requires the measurement of mixing of supply air with room air throughout the space to be conditioned. This is a particularly difficult exercise if we want to determine the transient performance of the space conditioning system. Full scale experiments can be done in special test chambers, but the spatial resolution required to fully examine the mixing problem is usually limited by the sheer number of thermal sensors required. Current full-scale laboratory testing is therefore severely limited in its resolution. As an alternative, we used a water-filled scale model of a room in which whole-field supply air mixing maps of two vertical planes were measured using a Planar Laser-Induced Fluorescence (PLIF) measurement technique. Water marked with fluorescent dye was used to simulate the supply airflow; and the resulting concentrations within the water filled model show how the supply air mixes with the room air and are an analog for temperature (for thermal loads) or fresh air (for ventilation). In addition to performing experiments over a range of flow rates, we also changed register locations and examined the effects for both heating and cooling operation by changing the water density (simulating air density changes due to temperature changes) using dissolved salt.

Walker, Iain S.; Claret, Valerie; Smith, Brian

2006-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "upper air measurements" 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.


481

Numerical Analysis of a Cold Air Distribution System  

E-Print Network [OSTI]

Cold air distribution systems may reduce the operating energy consumption of air-conditioned air supply system and improve the outside air volume percentages and indoor air quality. However, indoor temperature patterns and velocity field are easily...

Zhu, L.; Li, R.; Yuan, D.

2006-01-01T23:59:59.000Z

482

An integrated perspective on assessing agricultural air quality  

E-Print Network [OSTI]

An integrated perspective on assessing agricultural air quality Viney P. Aneja* Department. In this paper, we summarise an integrated assessment framework for studying the agricultural air quality issues air quality; air emissions; air pollution; ammonia; animal feeding operations; biogeochemical cycles

Niyogi, Dev

483

Impact of Uncertainties in Hadron Production on Air-Shower Predictions  

E-Print Network [OSTI]

At high energy, cosmic rays can only be studied by measuring the extensive air showers they produce in the atmosphere of the Earth. Although the main features of air showers can be understood within a simple model of successive interactions, detailed simulations and a realistic description of particle production are needed to calculate observables relevant to air shower experiments. Currently hadronic interaction models are the main source of uncertainty of such simulations. We will study the effect of using different hadronic models available in CORSIKA and CONEX on extensive air shower predictions.

T. Pierog; R. Engel; D. Heck

2006-02-08T23:59:59.000Z

484

Ambient air monitoring for organic compounds, acids, and metals at Los Alamos National Laboratory, January 1991  

SciTech Connect (OSTI)

Los Alamos National Laboratory (LANL) contracted Radian Corporation (Radian) to conduct a short-term, intensive air monitoring program whose goal was to estimate the impact of chemical emissions from LANL on the ambient air environment. A comprehensive emission inventory had identified more than 600 potential air contaminants in LANL's emissions. A subset of specific target chemicals was selected for monitoring: 20 organic vapors, 6 metals and 5 inorganic acid vapors. These were measured at 5 ground level sampling sites around LANL over seven consecutive days in January 1991. The sampling and analytical strategy used a combination of EPA and NIOSH methods modified for ambient air applications.

Williams, C.H. (Radian Corp., Austin, TX (United States)); Eberhart, C.F. (Los Alamos National Lab., NM (United States))

1992-01-01T23:59:59.000Z

485

Ambient air monitoring for organic compounds, acids, and metals at Los Alamos National Laboratory, January 1991  

SciTech Connect (OSTI)

Los Alamos National Laboratory (LANL) contracted Radian Corporation (Radian) to conduct a short-term, intensive air monitoring program whose goal was to estimate the impact of chemical emissions from LANL on the ambient air environment. A comprehensive emission inventory had identified more than 600 potential air contaminants in LANL`s emissions. A subset of specific target chemicals was selected for monitoring: 20 organic vapors, 6 metals and 5 inorganic acid vapors. These were measured at 5 ground level sampling sites around LANL over seven consecutive days in January 1991. The sampling and analytical strategy used a combination of EPA and NIOSH methods modified for ambient air applications.

Williams, C.H. [Radian Corp., Austin, TX (United States); Eberhart, C.F. [Los Alamos National Lab., NM (United States)

1992-10-01T23:59:59.000Z

486

Impact of Vehicle Air-Conditioning on Fuel Economy, Tailpipe Emissions, and Electric Vehicle Range: Preprint  

SciTech Connect (OSTI)

Vehicle air-conditioning can significantly impact fuel economy and tailpipe emissions of conventional and hybrid electric vehicles and reduce electric vehicle range. In addition, a new US emissions procedure, called the Supplemental Federal Test Procedure, has provided the motivation for reducing the size of vehicle air-conditioning systems in the US. The SFTP will measure tailpipe emissions with the air-conditioning system operating. Current air-conditioning systems can reduce the fuel economy of high fuel-economy vehicles by about 50% and reduce the fuel economy of today's mid-sized vehicles by more than 20% while increasing NOx by nearly 80% and CO by 70%.

Farrington, R.; Rugh, J.

2000-09-22T23:59:59.000Z

487

AIR POLLUTION: Diesel Fuel Culprits  

Science Journals Connector (OSTI)

AIR POLLUTION: Diesel Fuel Culprits ... Low-molecular-weight components aren't necessarily the true culprits of diesel fuel pollution, although they do contribute to it, according to Hertha Skala, assistant director of research, and her coworkers F. G. Padrta and P. C. Samson at Universal Oil Products. ... At the first national symposium on heterogeneous catalysis for control of air pollution, sponsored by Philadelphia's Franklin Institute, Mrs. Skala identified five different classes of oxygenated hydrocarbons found over the full molecular-weight range of diesel fuel components. ...

1968-12-02T23:59:59.000Z

488

Measuring in All the Right Places: Themes in International Municipal Eco-City Index Systems  

E-Print Network [OSTI]

lacks measurement units. For instance, energy use intensityEnergy and Climate Water Quality, Avail- ability, and Treatment Air Quality Commonality Secondary Category Example units of measurement

Williams, Christopher

2014-01-01T23:59:59.000Z

489

Hadron Production at Fixed Target Energies and Extensive Air Showers  

E-Print Network [OSTI]

NA61/SHINE is a fixed-target experiment to study hadron production in hadron-nucleus and nucleus-nucleus collisions at the CERN SPS. Due to the very good acceptance and particle identification in forward direction, NA61/SHINE is well suited for measuring particle production to improve the reliability of air shower simulations. Data with proton and pion beams have been taken in 2007 and 2009. First analysis results for the pion yield in proton-carbon interactions at 31 GeV will be shown and compared to predictions from models used in air shower simulations.

M. Unger; for the NA61/SHINE Collaboration

2010-12-12T23:59:59.000Z

490

Upper bounds on parity-violating ?-ray asymmetries in compound nuclei from polarized cold neutron capture  

Science Journals Connector (OSTI)

Parity-odd asymmetries in the electromagnetic decays of compound nuclei can sometimes be amplified above values expected from simple dimensional estimates by the complexity of compound nuclear states. Using a statistical approach, we estimate the root-mean-square of the distribution of expected parity-odd correlations s?n·k??, where s?n is the neutron spin and k?? is the momentum of the ?, in the integrated ? spectrum from the capture of cold polarized neutrons on Al, Cu, and In. We present measurements of the asymmetries in these and other nuclei. Based on our calculations, large enhancements of asymmetries were not predicted for the studied nuclei and the statistical estimates are consistent with our measured upper bounds on the asymmetries.

M. T. Gericke et al. (NPDGamma Collaboration)

2006-12-19T23:59:59.000Z

491

ARM - Measurement - Virtual temperature  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

govMeasurementsVirtual temperature govMeasurementsVirtual temperature ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Virtual temperature The virtual temperature Tv = T(1 + rv/{epsilon}), where rv is the mixing ratio, and {epsilon} is the ratio of the gas constants of air and water vapor ( 0.622). Categories Atmospheric State Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments CO2FLX : Carbon Dioxide Flux Measurement Systems MWRP : Microwave Radiometer Profiler RWP : Radar Wind Profiler

492

Upper Cumberland E M C | Open Energy Information  

Open Energy Info (EERE)

Upper Cumberland E M C Upper Cumberland E M C Place Tennessee Utility Id 19574 Utility Location Yes Ownership C NERC Location SERC NERC SERC Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] Energy Information Administration Form 826[2] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Commercial GSA 1 Commercial Commercial GSA 2 Commercial Commercial GSA 3 Commercial Industrial GSA 1 Industrial Industrial GSA 2 Industrial Industrial GSA 3 Industrial Residential Residential outdoor light(Mercury 175 Watt) Lighting outdoor light(Mercury 400 Watt) Lighting outdoor light(Metal Halide 1000 watt FL) Lighting outdoor light(Metal Halide 250 watt FL) Lighting

493

Air Sealing Your Home | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Air Sealing Your Home Air Sealing Your Home Air Sealing Your Home November 26, 2013 - 6:22pm Addthis Save on heating and cooling costs by checking for air leaks in common trouble spots in your home. Save on heating and cooling costs by checking for air leaks in common trouble spots in your home. What does this mean for me? Save money and energy by air sealing your house. Caulking and weatherstripping are simple, effective ways of sealing air leaks in your home. Reducing the amount of air that leaks in and out of your home is a cost-effective way to cut heating and cooling costs, improve durability, increase comfort, and create a healthier indoor environment. Caulking and weatherstripping are two simple and effective air-sealing techniques that offer quick returns on investment, often one year or less. Caulk is

494

Maintaining Your Air Conditioner | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Maintaining Your Air Conditioner Maintaining Your Air Conditioner Maintaining Your Air Conditioner June 18, 2013 - 6:20pm Addthis Replacing or cleaning air conditioner filters is a critical maintenance task. | Photo courtesy of ©iStockphoto/firemanYU. Replacing or cleaning air conditioner filters is a critical maintenance task. | Photo courtesy of ©iStockphoto/firemanYU. What does this mean for me? Regular maintenance keeps your air conditioner running as efficiently as possible. Maintaining your air conditioner will save you money by extending the unit's life. An air conditioner's filters, coils, and fins require regular maintenance for the unit to function effectively and efficiently throughout its years of service. Neglecting necessary maintenance ensures a steady decline in air conditioning performance while energy use steadily increases.

495

Maintaining Your Air Conditioner | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Maintaining Your Air Conditioner Maintaining Your Air Conditioner Maintaining Your Air Conditioner June 18, 2013 - 6:20pm Addthis Replacing or cleaning air conditioner filters is a critical maintenance task. | Photo courtesy of ©iStockphoto/firemanYU. Replacing or cleaning air conditioner filters is a critical maintenance task. | Photo courtesy of ©iStockphoto/firemanYU. What does this mean for me? Regular maintenance keeps your air conditioner running as efficiently as possible. Maintaining your air conditioner will save you money by extending the unit's life. An air conditioner's filters, coils, and fins require regular maintenance for the unit to function effectively and efficiently throughout its years of service. Neglecting necessary maintenance ensures a steady decline in air conditioning performance while energy use steadily increases.

496

Exergy efficiency of a counterflow air/air heat exchanger with vapour condensation  

Science Journals Connector (OSTI)

The exergy efficiency of a counterflow hot moist air/...?1 for the temperature and humidity ratio of hot moist air respectively are considered. Constant ambient air conditions of 20°C and 0.01 kg·kg?1 were assume...

J. Jilek; J. H. Young

1993-01-01T23:59:59.000Z

497

Review: Clearing the Air: The Health and Economic Damages of Air Pollution in China  

E-Print Network [OSTI]

the assessment of air pollution and its health and economiclargest source of health damages of air pollution in China,to air pollution, and the economic evaluations of health

Lee, Joseph

2009-01-01T23:59:59.000Z

498

Air quality, infant mortality, and the Clean Air Act of 1970  

E-Print Network [OSTI]

We examine the effects of total suspended particulates (TSPs) air pollution on infant health using the air quality improvements induced by the 1970 Clean Air Act Amendments (CAAA). This legislation imposed strict regulations ...

Chay, Kenneth Y.

2003-01-01T23:59:59.000Z

499

Urban Air Quality Management: Detecting and Improving Indoor Ambient Air Quality  

Science Journals Connector (OSTI)

Current air pollution management and air quality control are primarily focused on outdoor and ... which act as public spaces, contaminated indoor air could be public health hazards. In Singapore ... spend a subst...

T. L. Tan; Gissella B. Lebron

2011-01-01T23:59:59.000Z

500

Air toxic emissions from the combustion of coal: Identifying and quantifying hazardous air pollutants from US coals  

SciTech Connect (OSTI)

This report addresses the key air toxic emissions likely to emanate from continued and expanded use of domestic coal. It identifies and quantifies those trace elements specified in the US 1990 Clean Air Act Amendments, by tabulating selected characterization data on various source coals by region, state, and rank. On the basis of measurements by various researchers, this report also identifies those organic compounds likely to be derived from the coal combustion process (although their formation is highly dependent on specific boiler configurations and operating conditions).

Szpunar, C.B.

1992-09-01T23:59:59.000Z