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Note: This page contains sample records for the topic "hydrothermal hot water" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Arnold Schwarzenegger WATER HEATERS AND HOT WATER  

E-Print Network [OSTI]

Arnold Schwarzenegger Governor WATER HEATERS AND HOT WATER DISTRIBUTION SYSTEMS: Lutz J.D. (Lawrence Berkeley National Laboratory). 2008. Water Heaters and Hot Water Distribution

2

Green Systems Solar Hot Water  

E-Print Network [OSTI]

Green Systems Solar Hot Water Heating the Building Co-generation: Heat Recovery System: Solar panels not enough Generates heat energy Captures heat from generator and transfers it to water Stores Thermal Panels (Trex enclosure) Hot Water Storage Tank (TS-5; basement) Hot Water Heaters (HW-1

Schladow, S. Geoffrey

3

Arnold Schwarzenegger WATER HEATERS AND HOT WATER  

E-Print Network [OSTI]

Arnold Schwarzenegger Governor WATER HEATERS AND HOT WATER DISTRIBUTION SYSTEMS;#12;Appendices Appendix A. Multifamily Water Heating Construction Practices, Pricing and Availability Survey Report Appendix B. Multifamily Water Heating Controls Performance Field Report Appendix C. Pipe

4

Modern hot water district heating  

SciTech Connect (OSTI)

The history of district heating in Europe is drastically different from that in the United States. The development of district heating in northern and eastern Europe started in the early 1950s. Hot water rather than steam was used as the transport medium and the systems have proven to be more economical. Recently, the northern European concept has been introduced into two US cities - St. Paul and Willmar, Minnesota. The hot water project in St. Paul started construction and operation in the summer and fall of 1983, respectively. The entire first phase of the St. Paul project will take two summers to construct and will connect approximately 80 buildings for a total of 150 MW(t). The system spans the entire St. Paul business district and includes privately owned offices and retail buildings, city and county government buildings, hospitals, the state Capitol complex, and several industrial customers. The City of Willmar, Minnesota, replaced an old steam system with a modern hot water system in the summer of 1982. The first phase of the hot water system was constructed in the central business district. The system serves a peak thermal load of about 10 MW(t) and includes about 12,000 ft of network. The Willmar system completed the second stage of development in the fall of 1983. These two new systems demonstrate the benefits of the low-temperature hot water district heating technology. The systems are economical to build, have high reliability, and have low maintenance and operating cost.

Karnitz, M.A.; Barnes, M.H.; Kadrmas, C.; Nyman, H.O.

1984-06-01T23:59:59.000Z

5

Stratification in hot water tanks  

SciTech Connect (OSTI)

Stratification in a domestic hot water tank, used to increase system performance by enabling the solar collectors to operate under marginal conditions, is discussed. Data taken in a 120 gallon tank indicate that stratification can be achieved without any special baffling in the tank. (MJF)

Balcomb, J.D.

1982-04-01T23:59:59.000Z

6

Solar Hot Water Market Development in Knoxville, TN | Department...  

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

Information Resources Solar Hot Water Market Development in Knoxville, TN Solar Hot Water Market Development in Knoxville, TN Assessment of local solar hot water markets, market...

7

Solar Works in Seattle: Domestic Hot Water  

Broader source: Energy.gov [DOE]

Seattle's residential solar hot water workshop. Content also covers general solar resource assessment, siting, and financial incentives.

8

Are we putting in hot water?  

E-Print Network [OSTI]

, and habitat loss will increase. And while slightly warmer water may not sound so bad to many of us, its effectAre we putting our fish in hot water? Global warming and the world's fisheries · Hot, hungry, and gasping for air · Shrinking fish and fewer babies? · Global warming puts fish on the run · Warm water

Combes, Stacey A.

9

Monitoring SERC Technologies Solar Hot Water  

Broader source: Energy.gov [DOE]

A webinar by National Renewable Energy Laboratory analyst Eliza Hotchkiss on Solar Hot Water systems and how to properly monitor their installation.

10

Solar Hot Water Resources and Technologies  

Broader source: Energy.gov [DOE]

This page provides a brief overview of solar hot water (SHW) technologies supplemented by specific information to apply SHW within the Federal sector.

11

Disaggregating residential hot water use. Part 2  

SciTech Connect (OSTI)

A major obstacle to gathering detailed data on end-use hot water consumption within residences and commercial buildings is the cost and complexity of the field tests. An earlier study by the authors presented a methodology that could accurately disaggregate hot water consumption into individual end-uses using only information on the flow of hot water from the water heater. The earlier methodology can be extended to a much larger population of buildings, without greatly increasing the cost and complexity of the data collection and analysis, by monitoring the temperature of the hot water lines that go to different parts of the building. For the three residences studied here, thermocouples /monitored the temperatures of four hot water lines at each site. The thermocouple readings provide a positive indication of when hot water starts to flow in a line. Since the end-uses served by each hot water line are known, the uncertainty in assigning a draw to a particular end-use is greatly reduced. Benefits and limitations for the methodology are discussed in the paper. Using the revised methodology, hot water usage in three residences is disaggregated into the following end-uses: showers, baths, clothes washing, dishwashing, kitchen sink, and bathroom sink. For two residences, the earlier methodology--which does not use the thermocouple data--is also used to disaggregate the same draw data.

Lowenstein, A. [AIL Research, Inc., Princeton, NJ (United States); Hiller, C.C. [Electric Power Research Inst., Palo Alto, CA (United States)

1998-10-01T23:59:59.000Z

12

Hot Water DJ: Saving Energy by Pre-mixing Hot Water Md Anindya Prodhan  

E-Print Network [OSTI]

Hot Water DJ: Saving Energy by Pre-mixing Hot Water Md Anindya Prodhan Department of Computer University of Virginia whitehouse@virginia.edu Abstract After space heating and cooling, water heating consumption. Current water heating systems waste up to 20% of their energy due to poor insulation in pipes

Whitehouse, Kamin

13

Disaggregating Hot Water Use and Predicting Hot Water Waste in Five Test Homes  

SciTech Connect (OSTI)

While it is important to make the equipment (or 'plant') in a residential hot water system more efficient, the hot water distribution system also affects overall system performance and energy use. Energy wasted in heating water that is not used is estimated to be on the order of 10 to 30 percent of total domestic hot water (DHW) energy use. This field monitoring project installed temperature sensors on the distribution piping (on trunks and near fixtures) and programmed a data logger to collect data at 5 second intervals whenever there was a hot water draw. This data was used to assign hot water draws to specific end uses in the home as well as to determine the portion of each hot water that was deemed useful (i.e., above a temperature threshold at the fixture). Five houses near Syracuse NY were monitored. Overall, the procedures to assign water draws to each end use were able to successfully assign about 50% of the water draws, but these assigned draws accounted for about 95% of the total hot water use in each home. The amount of hot water deemed as useful ranged from low of 75% at one house to a high of 91% in another. At three of the houses, new water heaters and distribution improvements were implemented during the monitoring period and the impact of these improvements on hot water use and delivery efficiency were evaluated.

Henderson, H.; Wade, J.

2014-04-01T23:59:59.000Z

14

Model Simulating Real Domestic Hot Water Use - Building America...  

Energy Savers [EERE]

Model Simulating Real Domestic Hot Water Use - Building America Top Innovation Model Simulating Real Domestic Hot Water Use - Building America Top Innovation Image of a pipe...

15

Webinar: ENERGY STAR Hot Water Systems for High Performance Homes...  

Energy Savers [EERE]

Webinar: ENERGY STAR Hot Water Systems for High Performance Homes Webinar: ENERGY STAR Hot Water Systems for High Performance Homes This presentation is from the Building America...

16

The Chilled Water and Hot Water Building Differential Pressure Setpoint Calculation - Chilled Water and Hot Water Pump Speed Control  

E-Print Network [OSTI]

A&M University College Station, TX ABSTRACT More and more variable frequency devices (VFD) are being installed on the chilled water and hot water pumps on the TAMU campus. Those pump speeds are varied to maintain chilled water... and the rest 46 buildings are located on the west campus. More and more variable frequency devices (VFD) are installed on chilled water and hot water pumps. The variable speed pump has reduced the over-pressuring of water systems and reduced pump...

Turner, W. D.; Bruner, H., Jr.; Claridge, D.; Liu, C.; Deng, S.

2002-01-01T23:59:59.000Z

17

Continuous Commissioning of a Central Chilled Water & Hot Water System  

E-Print Network [OSTI]

the campus loops and the building loops. Some optimization of the plant chiller 1 boiler operation is also necessary and beneficial. In general, through Continuous Commissioning, chilled water and hot water loop temperature differences will be improved...

Deng, S.; Turner, W. D.; Batten, T.; Liu, M.

2000-01-01T23:59:59.000Z

18

Water Heaters and Hot Water Distribution Systems  

E-Print Network [OSTI]

24 Figure 7. Comparison of Daily Water Heater28 Figure 8. Monitored Field Efficiency of Tankless Water28 Figure 9. Monitored Lab Efficiency of Tankless Water

Lutz, Jim

2012-01-01T23:59:59.000Z

19

Water Heaters and Hot Water Distribution Systems  

E-Print Network [OSTI]

Gas-fired Storage Water Heater .. 418 Assess Californias Small Gas Storage Water Heaters Small Gas Storage Water Heater Market The objective of

Lutz, Jim

2012-01-01T23:59:59.000Z

20

A Sr-Isotopic Comparison Between Thermal Waters, Rocks, And Hydrotherm...  

Open Energy Info (EERE)

Sr-Isotopic Comparison Between Thermal Waters, Rocks, And Hydrothermal Calcites, Long Valley Caldera, California Jump to: navigation, search OpenEI Reference LibraryAdd to library...

Note: This page contains sample records for the topic "hydrothermal hot water" 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

Hot Water Heating System Operation and Energy Conservation  

E-Print Network [OSTI]

Based on an example of the reconstruction of a hot water heating system, this paper provides an analysis and comparison of the operations of hot water heating systems, including supply water temperature adjustment, flow adjustment during each...

Shao, Z.; Chen, H.; Wei, P.

2006-01-01T23:59:59.000Z

22

Water Heaters and Hot Water Distribution Systems  

E-Print Network [OSTI]

heat loss testing; part load performance curves for instantaneous gas water heaters; and pressure loss calculationsheat loss testing; part load performance curves for instantaneous gas water heaters; and pressure loss calculations

Lutz, Jim

2012-01-01T23:59:59.000Z

23

Alternatives for reducing hot-water bills  

SciTech Connect (OSTI)

A two stage approach to reducing residential water heating bills is described. In Stage I, simple conservation measures were included to reduce the daily hot water energy consumption and the energy losses from the water tank. Once these savings are achieved, Stage II considers more costly options for further reducing the water heating bill. Four alternatives are considered in Stage II: gas water heaters; solar water heaters (two types); heat pump water heaters; and heat recovery from a heat pump or air conditioner. To account for variations within the MASEC region, information on water heating in Rapid City, Minneapolis, Chicago, Detroit, and Kansas City is presented in detail. Information on geography, major population centers, fuel prices, climate, and state solar incentives is covered. (MCW)

Bennington, G.E.; Spewak, P.C.

1981-06-01T23:59:59.000Z

24

Hot water bitumen extraction process  

SciTech Connect (OSTI)

This patent describes a method of extracting bitumen oils from tar-sands ore. It includes an initial conditioning step comprising crushing tar-sands ore to yield solid particles of a maximum size required by a log washer conditioner in a second conditioning step; a bitumen extraction step; a bitumen separation step; a solvent recovery step; a sand washing and water clarification step; and a sand solvent recovery step.

Rendall, J.S.

1989-10-24T23:59:59.000Z

25

Solar Hot Water Creates Savings for Homeless Shelters | Department...  

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

Solar Hot Water Creates Savings for Homeless Shelters Solar Hot Water Creates Savings for Homeless Shelters July 15, 2010 - 12:10pm Addthis Kevin Craft What are the key facts?...

26

Microwave vs. Electric Kettle: Which Appliance Is in Hot Water...  

Energy Savers [EERE]

Microwave vs. Electric Kettle: Which Appliance Is in Hot Water in EnergyFaceoff Round 4? Microwave vs. Electric Kettle: Which Appliance Is in Hot Water in EnergyFaceoff Round 4?...

27

High temperature hot water distribution system study  

SciTech Connect (OSTI)

The existing High Temperature Hot Water (HTHW) Distribution System has been plagued with design and construction deficiencies since startup of the HTHW system, in October 1988. In October 1989, after one year of service, these deficiencies were outlined in a technical evaluation. The deficiencies included flooded manholes, sump pumps not hooked up, leaking valves, contaminated HTHW water, and no cathodic protection system. This feasibility study of the High Temperature Hot Water (HTHW) Distribution System was performed under Contract No. DACA0l-94-D-0033, Delivery Order 0013, Modification 1, issued to EMC Engineers, Inc. (EMC), by the Norfolk District Corps of Engineers, on 25 April 1996. The purpose of this study was to determine the existing conditions of the High Temperature Hot Water Distribution System, manholes, and areas of containment system degradation. The study focused on two areas of concern, as follows: * Determine existing conditions and areas of containment system degradation (leaks) in the underground carrier pipes and protective conduit. * Document the condition of underground steel and concrete manholes. To document the leaks, a site survey was performed, using state-of-the-art infrared leak detection equipment and tracer gas leak detection equipment. To document the condition of the manholes, color photographs were taken of the insides of 125 manholes, and notes were made on the condition of these manholes.

NONE

1996-12-01T23:59:59.000Z

28

STATE OF CALIFORNIA SOLAR DOMESTIC HOT WATER SYSTEMS (SDHW)  

E-Print Network [OSTI]

STATE OF CALIFORNIA SOLAR DOMESTIC HOT WATER SYSTEMS (SDHW) CEC- CF-6R-MECH-02 (Revised 08/09) CALIFORNIA ENERGY COMMISSION INSTALLATION CERTIFICATE CF-6R-MECH-02 Solar Domestic Hot Water Systems (SDHW OF CALIFORNIA SOLAR DOMESTIC HOT WATER SYSTEMS (SDHW) CEC- CF-6R-MECH-02 (Revised 08/09) CALIFORNIA ENERGY

29

Hot water can freeze faster than cold?!?  

E-Print Network [OSTI]

We review the Mpemba effect, where intially hot water freezes faster than initially cold water. While the effect appears impossible at first sight, it has been seen in numerous experiments, was reported on by Aristotle, Francis Bacon, and Descartes, and has been well-known as folklore around the world. It has a rich and fascinating history, which culminates in the dramatic story of the secondary school student, Erasto Mpemba, who reintroduced the effect to the twentieth century scientific community. The phenomenon, while simple to describe, is deceptively complex, and illustrates numerous important issues about the scientific method: the role of skepticism in scientific inquiry, the influence of theory on experiment and observation, the need for precision in the statement of a scientific hypothesis, and the nature of falsifiability. We survey proposed theoretical mechanisms for the Mpemba effect, and the results of modern experiments on the phenomenon. Studies of the observation that hot water pipes are more likely to burst than cold water pipes are also described.

Monwhea Jeng

2005-12-29T23:59:59.000Z

30

Solar Hot Water Heater Industry in Barbados  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up from the GridwiseSite Management GuideReliability |WindowsSolarSolarSolar Hot Water

31

Design package for solar domestic hot water system  

SciTech Connect (OSTI)

Information used to evaluate the initial design of the Elcam, Inc., Solar Domestic Hot Water System is presented. Included are such items as the system performance specification, detailed design drawings and other information. Elcam, Inc., has developed two solar heated prototype hot water systems and two heat exchangers. The hot water systems consist of the following subsystems: collector, storage, control, transport, auxiliary energy, and government-furnished Site Data Acquisition. The two systems are installed at Tempe, Arizona, and San Diego, California.

None

1980-09-01T23:59:59.000Z

32

Water Sampling At Mt Princeton Hot Springs Geothermal Area (Olson...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Water Sampling At Mt Princeton Hot Springs Geothermal Area (Olson & Dellechaie, 1976)...

33

Mandating Solar Hot Water by California Local Governments: Legal Issues  

E-Print Network [OSTI]

the legality of solar mandates in California cities andCITIES & CALIFORNIA ENERGY COMMISSION, SOLAR HANDBOOK FORMandating Solar Hot Water By California Local Governments:

Hoffman,, Peter C.

1981-01-01T23:59:59.000Z

34

Interpretation of Water Sample Analysis, Waunita Hot Spring Project...  

Open Energy Info (EERE)

R. H. Carpenter (Colorado Geological Survey in Cooperation with the U.S. Department of Energy). 1981. Interpretation of Water Sample Analysis, Waunita Hot Spring Project,...

35

Influence of the regional topography on the remote emplacement of hydrothermal systems with examples of Ticsani and Ubinas volcanoes, Southern Peru.  

E-Print Network [OSTI]

and temperature of the hot springs together with the water table position given by self-potential data can be used-volcanic hydrothermal systems. Keywords: self-potential mapping, hydrothermal system, hot springs, temperature 1 by fu- marolic activity and hot springs on the flanks of the edifice, high electric conductivity

36

Analysis Model for Domestic Hot Water Distribution Systems: Preprint  

SciTech Connect (OSTI)

A thermal model was developed to estimate the energy losses from prototypical domestic hot water (DHW) distribution systems for homes. The developed model, using the TRNSYS simulation software, allows researchers and designers to better evaluate the performance of hot water distribution systems in homes. Modeling results were compared with past experimental study results and showed good agreement.

Maguire, J.; Krarti, M.; Fang, X.

2011-11-01T23:59:59.000Z

37

Tool for Generating Realistic Residential Hot Water Event Schedules: Preprint  

SciTech Connect (OSTI)

The installed energy savings for advanced residential hot water systems can depend greatly on detailed occupant use patterns. Quantifying these patterns is essential for analyzing measures such as tankless water heaters, solar hot water systems with demand-side heat exchangers, distribution system improvements, and recirculation loops. This paper describes the development of an advanced spreadsheet tool that can generate a series of year-long hot water event schedules consistent with realistic probability distributions of start time, duration and flow rate variability, clustering, fixture assignment, vacation periods, and seasonality. This paper also presents the application of the hot water event schedules in the context of an integral-collector-storage solar water heating system in a moderate climate.

Hendron, B.; Burch, J.; Barker, G.

2010-08-01T23:59:59.000Z

38

Hot Spot Conditions during Cavitation in Water Yuri T. Didenko,  

E-Print Network [OSTI]

Hot Spot Conditions during Cavitation in Water Yuri T. Didenko, William B. McNamara III-13 the effective hot spot temperature during aqueous cavitation remains unresolved. Given the importance of aqueous cavitation (sonography and bioeffects of ultrasound, sonochemical remediation of aqueous pollutants

Suslick, Kenneth S.

39

DOE Zero Energy Ready Home Efficient Hot Water Distribution I...  

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

I -- What's At Stake Webinar (Text Version) DOE Zero Energy Ready Home Efficient Hot Water Distribution I -- What's At Stake Webinar (Text Version) Below is the text version of the...

40

DOE Zero Energy Ready Home Efficient Hot Water Distribution II...  

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

-- How to Get it Right Webinar (Text Version) DOE Zero Energy Ready Home Efficient Hot Water Distribution II -- How to Get it Right Webinar (Text Version) Below is the text...

Note: This page contains sample records for the topic "hydrothermal hot water" 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

DOE ZERH Webinar: Efficient Hot Water Distribution II: How to...  

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

II: How to Get it Right DOE ZERH Webinar: Efficient Hot Water Distribution II: How to Get it Right Watch the video or view the presentation slides below Zero Energy Ready Homes...

42

TYPICAL HOT WATER DRAW PATTERNS BASED ON FIELD DATA  

SciTech Connect (OSTI)

There is significant variation in hot water use and draw patterns among households. This report describes typical hot water use patterns in single-family residences in North America. We found that daily hot water use is highly variable both among residences and within the same residence. We compared the results of our analysis of the field data to the conditions and draw patterns established in the current U.S. Department of Energy (DOE) test procedure for residential water heaters. The results show a higher number of smaller draws at lower flow rates than used in the test procedure. The data from which the draw patterns were developed were obtained from 12 separate field studies. This report describes the ways in which we managed, cleaned, and analyzed the data and the results of our data analysis. After preparing the data, we used the complete data set to analyze inlet and outlet water temperatures. Then we divided the data into three clusters reflecting house configurations that demonstrated small, medium, or large median daily hot water use. We developed the three clusters partly to reflect efforts of the ASHRAE standard project committee (SPC) 118.2 to revise the test procedure for residential water heaters to incorporate a range of draw patterns. ASHRAE SPC 118.2 has identified the need to separately evaluate at least three, and perhaps as many as five, different water heater capacities. We analyzed the daily hot water use data within each cluster in terms of volume and number of hot water draws. The daily draw patterns in each cluster were characterized using distributions for volume of draws, duration of draws, time since previous draw, and flow rates.

Lutz, Jim; Melody, Moya

2012-11-08T23:59:59.000Z

43

Modeling patterns of hot water use in households  

SciTech Connect (OSTI)

This report presents a detailed model of hot water use patterns in individual households. The model improves upon an existing model by including the effects of four conditions that were previously unaccounted for: the absence of a clothes washer; the absence of a dishwasher; a household consisting of seniors only; and a household that does not pay for its own hot water use. Although these four conditions can significantly affect residential hot water use, and have been noted in other studies, this is the first time that they have been incorporated into a detailed model. This model allows detailed evaluation of the impact of potential efficiency standards for water heaters and other market transformation policies.

Lutz, James D.; Liu, Xiaomin; McMahon, James E.; Dunham, Camilla; Shown, Leslie J.; McCure, Quandra T.

1996-01-01T23:59:59.000Z

44

Modeling patterns of hot water use in households  

SciTech Connect (OSTI)

This report presents a detailed model of hot water use patterns in individual household. The model improves upon an existing model by including the effects of four conditions that were previously unaccounted for: the absence of a clothes washer; the absence of a dishwasher; a household consisting of seniors only; and a household that does not pay for its own hot water use. Although these four conditions can significantly affect residential hot water use, and have been noted in other studies, this is the first time that they have been incorporated into a detailed model. This model allows detailed evaluation of the impact of potential efficiency standards for water heaters and other market transformation policies. 21 refs., 3 figs., 10 tabs.

Lutz, J.D.; Liu, Xiaomin; McMahon, J.E. [and others

1996-11-01T23:59:59.000Z

45

STATE OF CALIFORNIA DOMESTIC HOT WATER (DHW)  

E-Print Network [OSTI]

,000 Btu/hr), electric resistance and heat pump water heaters, list Energy Factor (EF). For large gas storage water heaters (rated input of greater than 75,000 Btu/hr), list Recovery Efficiency (RE), Thermal Efficiency, Standby Loss and Rated Input. For instantaneous gas water heaters, list the Thermal Efficiency

46

Lessons and Measures Learned from Continuous Commissioning(SM) of Central Chilled/Hot Water Systems  

E-Print Network [OSTI]

water and hot water system operation. It can be performed before, during, or after building side continuous commissioning. Successful central chilled/hot water system CC not only results in improved production and distribution, but also achieves...

Deng, S.; Turner, W. D.; Claridge, D. E.; Bruner, H.; Chen, H.; Wei, G.

2001-01-01T23:59:59.000Z

47

CPS Energy- Solar Hot Water Rebate Program  

Broader source: Energy.gov [DOE]

As part of a larger program designed to reduce electricity demand within its service territory, CPS Energy now offers rebates for solar water heaters to its customers. In general, any CPS Energy...

48

A Hydrothermal Model of the Roosevelt Hot Springs Area, Utah, USA | Open  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 SouthWater Rights, Substantive(Sichuan, Sw China) |System,onEnergy

49

High temperature hot water systems: A primer  

SciTech Connect (OSTI)

The fundamental principles of high temperature water (HTW) system technology and its advantages for thermal energy distribution are presented. Misconceptions of this technology are also addressed. The paper describes design principles, applications, HTW properties, HTW system advantages, selecting the engineer, load diversification, design temperatures, system pressurization, pump considerations, constant vs. VS pumps, HTW generator types, and burners and controls.

Govan, F.A. [NMD and Associates, Cincinnati, OH (United States)

1998-01-01T23:59:59.000Z

50

Performance Monitoring of Residential Hot Water Distribution Systems  

SciTech Connect (OSTI)

Current water distribution systems are designed such that users need to run the water for some time to achieve the desired temperature, wasting energy and water in the process. We developed a wireless sensor network for large-scale, long time-series monitoring of residential water end use. Our system consists of flow meters connected to wireless motes transmitting data to a central manager mote, which in turn posts data to our server via the internet. This project also demonstrates a reliable and flexible data collection system that could be configured for various other forms of end use metering in buildings. The purpose of this study was to determine water and energy use and waste in hot water distribution systems in California residences. We installed meters at every end use point and the water heater in 20 homes and collected 1s flow and temperature data over an 8 month period. For a typical shower and dishwasher events, approximately half the energy is wasted. This relatively low efficiency highlights the importance of further examining the energy and water waste in hot water distribution systems.

Liao, Anna; Lanzisera, Steven; Lutz, Jim; Fitting, Christian; Kloss, Margarita; Stiles, Christopher

2014-08-11T23:59:59.000Z

51

Pressurized water nuclear reactor system with hot leg vortex mitigator  

DOE Patents [OSTI]

A pressurized water nuclear reactor system includes a vortex mitigator in the form of a cylindrical conduit between the hot leg conduit and a first section of residual heat removal conduit, which conduit leads to a pump and a second section of residual heat removal conduit leading back to the reactor pressure vessel. The cylindrical conduit is of such a size that where the hot leg has an inner diameter D.sub.1, the first section has an inner diameter D.sub.2, and the cylindrical conduit or step nozzle has a length L and an inner diameter of D.sub.3 ; D.sub.3 /D.sub.1 is at least 0.55, D.sub.2 is at least 1.9, and L/D.sub.3 is at least 1.44, whereby cavitation of the pump by a vortex formed in the hot leg is prevented.

Lau, Louis K. S. (Monroeville, PA)

1990-01-01T23:59:59.000Z

52

Water Heating: Energy-efficient strategies for supplying hot water in the home (BTS Technology Fact Sheet)  

SciTech Connect (OSTI)

Fact sheet for homeowners and contractors on how to supply hot water in the home while saving energy.

NAHB Research Center; Southface Energy Institute; U.S. Department of Energy's Oak Ridge Laboratory; U.S. Department of Energy's National Renewable Energy Laboratory

2001-08-15T23:59:59.000Z

53

Evaluation of Residential Hot Water Distribution Ssytems by Numeric Simulation  

SciTech Connect (OSTI)

The objective of this project was to evaluate the performance and economics of various domestic hot water distribution systems in representative California residences. While the greatest opportunities for improved efficiency occur in new construction, significant improvements can also be made in some existing distribution systems. Specific objectives of the project tasks were: (1) Simulate potential energy savings of, perform cost-benefit analyses of, and identify market barriers to alternative new systems. (2) Simulate potential energy savings of, perform cost-benefit analyses of, and identify market barriers to maintenance, repair, and retrofit modifications of existing systems. (3) Evaluate potential impact of adopting alternative hot water distribution systems and report project findings. The outcome of this project is to provide homeowners, homebuilders, systems suppliers, municipal code officials and utility providers (both electric and water/sewer) with a neutral, independent, third party, cost-benefit analysis of alternative hot water distribution systems for use in California. The results will enable these stakeholders to make informed decisions regarding which system is most appropriate for use.

Wendt, ROBERT

2005-08-17T23:59:59.000Z

54

Pilot Phase of a Field Study to Determine Waste of Water and Energy in Residential Hot-Water Distribution Systems  

E-Print Network [OSTI]

end use point, at the water heater in one second intervalsand monitoring at the water heater and hot water end uses.of water at the trunk (water heater) and twigs (individual

Lutz, Jim

2012-01-01T23:59:59.000Z

55

Overheating in Hot Water- and Steam-Heated Multifamily Buildings  

SciTech Connect (OSTI)

Apartment temperature data have been collected from the archives of companies that provide energy management systems (EMS) to multifamily buildings in the Northeast U.S. The data have been analyzed from more than 100 apartments in eighteen buildings where EMS systems were already installed to quantify the degree of overheating. This research attempts to answer the question, 'What is the magnitude of apartment overheating in multifamily buildings with central hot water or steam heat?' This report provides valuable information to researchers, utility program managers and building owners interested in controlling heating energy waste and improving resident comfort. Apartment temperature data were analyzed for deviation from a 70 degrees F desired setpoint and for variation by heating system type, apartment floor level and ambient conditions. The data shows that overheating is significant in these multifamily buildings with both hot water and steam heating systems.

Dentz, J.; Varshney, K.; Henderson, H.

2013-10-01T23:59:59.000Z

56

Heating of Oil Well by Hot Water Circulation  

E-Print Network [OSTI]

When highly viscous oil is produced at low temperatures, large pressure drops will significantly decrease production rate. One of possible solutions to this problem is heating of oil well by hot water recycling. We construct and analyze a mathematical model of oil-well heating composed of three linear parabolic PDE coupled with one Volterra integral equation. Further on we construct numerical method for the model and present some simulation results.

Mladen Jurak; Zarko Prnic

2005-03-04T23:59:59.000Z

57

Design of a high temperature hot water central heating system  

SciTech Connect (OSTI)

The paper reviews the conceptual design of a central heating system at Los Alamos Scientific Laboratory. The resource considered for this heating system design was hot dry rock geothermal energy. Design criteria were developed to ensure reliability of energy supply, to provide flexibility for adaptation to multiple energy resources, to make optimum use of existing equipment and to minimize reinvestment cost. A variable temperature peaking high temperature water system was selected for this purpose.

Beaumont, E.L.; Johnson, R.C.; Weaver, J.M.

1981-11-01T23:59:59.000Z

58

Design manual for high temperature hot water and steam systems  

SciTech Connect (OSTI)

The author presents aspects of high temperature hot water and steam generating systems. It covers all the calculations that must be made for sizing and then selecting the equipment that will make up an energy system. The author provides essential information on loan analysis, types of fuel, storage requirements, handling facilities, waste disposal, HVAC needs, and back-up systems. Also included are the calculations needed for determining the size of compressors, air pollution devices, fans, filters, and other supplementary equipment.

Cofield, R.E. Jr.

1984-01-01T23:59:59.000Z

59

Low rank coal upgrading in a flow of hot water  

SciTech Connect (OSTI)

Simultaneous hydrothermal degradation and extraction at around 350{sup o}C using flowing solvent as a reaction/extraction medium were proposed for upgrading brown coal, more specifically, for converting brown coal into several fractions having different molecular weight and chemical structure under mild conditions. When an Australian brown coal, Loy Yang coal, was treated by water at 350{sup o}C under 18 MPa, the coal was separated into four fractions: gaseous product by 8% yield, water-soluble extract at room temperature (soluble) by 23% yield, extract precipitates as solid at room temperature (deposit) by 23% yield, and residual coal (upgraded coal) by 46% yield on daf basis. The separation was found to be realized by in situ extraction of low-molecular-weight substances released from coal macromolecular structure and/or those generated by hydrothermal decomposition reactions at 350{sup o}C. The solid products obtained, deposit and upgraded coal, were characterized in detail to examine the possibility of their effective utilization as solid fuel and chemical feed stock. The upgraded coal showed higher heating value and higher gasification reactivity than the parent coal, indicating that the upgraded coal can be a better solid fuel than the parent coal. The solid extract, deposit, was found to show thermoplasticity at less than 200{sup o}C, suggesting the possibility of utilizing the deposit as a raw material of high performance carbon materials. Several variables affecting the performance of the proposed method are also examined in detail in this paper. 12 refs., 8 figs., 3 tabs.

Masato Morimoto; Hiroyuki Nakagawa; Kouichi Miura [Kyoto University, Kyoto (Japan). Department of Chemical Engineering

2009-09-15T23:59:59.000Z

60

DOE ZERH Webinar: Efficient Hot Water Distribution II: How to Get it Right  

Broader source: Energy.gov [DOE]

Zero Energy Ready Homes include critical systems to ensure both energy efficiency and performance. Hot water distribution is one of these critical systems affecting energy use , water...

Note: This page contains sample records for the topic "hydrothermal hot water" 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

DOE ZERH Webinar: Efficient Hot Water Distribution I: What's at Stake  

Broader source: Energy.gov [DOE]

Zero Energy Ready Homes include critical systems to ensure both energy efficiency and performance. Hot water distribution is one of these critical systems affecting energy use , water...

62

SYSTEM OPTIMIZTION OF HOT WATER CONCENTRATED SOLAR THERMOELECTRIC GENERATION  

E-Print Network [OSTI]

In this report, we describe the design of a concentrated solar thermoelectric (TE) system which can provide both electricity and hot water. Todays thermoelectric materials have a relatively low efficiency (~6 % for temperature difference across the thermoelement on the order of 300 o C). However since thermoelectrics dont need their cold side to be near room temperature, (in another word, one can chose the particular thermoelectric material to match to the operational temperature) it is possible to use the waste heat to provide hot water and this makes the overall efficiency of the combined system to be quite high. A key factor in the optimization of the thermoelectric module is the thermal impedance matching with the incident solar radiation, and also with the hot water heat exchanger on the cold side of the thermoelectric module. We have developed an analytic model for the whole system and optimized each component in order to minimize the material cost. TE element fill factor is found to be an important parameter to optimize at low solar concentrations (generated per mass of the thermoelectric elements. Similarly the co-optimization of the microchannel heat exchanger and the TE module can be used to minimize the amount of material in the heat exchanger and the pumping power required for forced convection liquid cooling. Changing the amount of solar concentration, changes the input heat flux and this is another parameter that can be optimized in order to reduce the cost of heat exchanger (by size), the tracking requirement and the whole system. A series of design curves for different solar concentration are obtained. It is shown that the overall efficiency of the system can be more than 80 % at 200x concentration which is independent of the material ZT (TE figure-of-merit). For a material with ZThot~0.9, the electrical conversion efficiency is ~10%. For advanced materials with ZThot ~ 2.8, the electrical conversion efficiency could reach ~21%. 1.

Kazuaki Yazawa; Ali Shakouri

63

Solar hot water system installed at Mobile, Alabama. Final report  

SciTech Connect (OSTI)

This final report describes the solar energy hot water system installed at LaQuinta Motor Inn Inc., at Mobile, Alabama. The building is a 122 unit motel. The system consists of six rows of ten collectors and three rows of eleven collectors (1990 square feet) mounted on the roof. Griswald flow control valves were installed to regulate the flow to each row. Two Heliotrope electronic thermometers with a combined capability of measuring the temperatures of 22 different locations were installed for monitoring purposes. Engineering drawings, component specifications, and operator instructions are included.

None

1980-10-01T23:59:59.000Z

64

Reduce Hot Water Use for Energy Savings | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy UsageAUDITVehicles »ExchangeDepartment ofManagementManagementReduce Hot Water Use for

65

Affordable Solar Hot Water and Power LLC | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectricEnergy Information Lightning Dock Area (CunniffAffinity WindHot Water

66

Realistic Hot Water Draw Specification for Rating Solar Water Heaters: Preprint  

SciTech Connect (OSTI)

In the United States, annual performance ratings for solar water heaters are simulated, using TMY weather and specified water draw. A more-realistic ratings draw is proposed that eliminates most bias by improving mains inlet temperature and by specifying realistic hot water use. This paper outlines the current and the proposed draws and estimates typical ratings changes from draw specification changes for typical systems in four cities.

Burch, J.

2012-06-01T23:59:59.000Z

67

Water and Energy Wasted During Residential Shower Events: Findings from a Pilot Field Study of Hot Water Distribution Systems  

E-Print Network [OSTI]

study to determine waste of water and energy in residential30 percent. The average waste of energy in the hot water ispaper examines the waste of water and energy associated with

Lutz, Jim

2012-01-01T23:59:59.000Z

68

Targeted removal of ant colonies in ecological experiments, using hot water  

E-Print Network [OSTI]

. An automobile heater fan powered from a 12-v battery provided a draft. Dual bilge pumps pumped water fromTargeted removal of ant colonies in ecological experiments, using hot water Walter R. Tschinkela ants because such baits are not specific to fire ants, or even to ants. Hot water is an extremely

69

Feasibility study and roadmap to improve residential hot water distribution systems  

SciTech Connect (OSTI)

Residential building practice currently ignores the losses of energy and water caused by the poor design of hot water systems. These losses include: the waste of water while waiting for hot water to get to the point of use; the wasted heat as water cools down in the distribution system after a draw; and the energy to reheat water that was already heated once before. A feasibility study and an action plan for a proposed research project involving residential hot water distribution systems is being developed. The feasibility study will use past work to estimate of hot water and energy loses caused by current hot water distribution systems in residences. Proposed research project, or roadmap, will develop recommendations for improvements to residential hot water distribution systems. The roadmap addresses the technical obstacles and gaps in our knowledge that prevent water and energy reductions and market adoption of water- and energy-efficient technologies. The initial results of the feasibility study are presented here along with a discussion of a roadmap to improve the efficiency of residential hot water distribution systems.

Lutz, James D.

2004-03-31T23:59:59.000Z

70

Recovery of solid fuel from municipal solid waste by hydrothermal treatment using subcritical water  

SciTech Connect (OSTI)

Highlights: Black-Right-Pointing-Pointer Hydrothermal treatment using subcritical water was studied to recover solid fuel from MSW. Black-Right-Pointing-Pointer More than 75% of carbon in MSW was recovered as char. Black-Right-Pointing-Pointer Heating value of char was comparable to that of brown coal and lignite. Black-Right-Pointing-Pointer Polyvinyl chloride was decomposed at 295 Degree-Sign C and 8 MPa and was removed by washing. - Abstract: Hydrothermal treatments using subcritical water (HTSW) such as that at 234 Degree-Sign C and 3 MPa (LT condition) and 295 Degree-Sign C and 8 MPa (HT condition) were investigated to recover solid fuel from municipal solid waste (MSW). Printing paper, dog food (DF), wooden chopsticks, and mixed plastic film and sheets of polyethylene, polypropylene, and polystyrene were prepared as model MSW components, in which polyvinylchloride (PVC) powder and sodium chloride were used to simulate Cl sources. While more than 75% of carbon in paper, DF, and wood was recovered as char under both LT and HT conditions, plastics did not degrade under either LT or HT conditions. The heating value (HV) of obtained char was 13,886-27,544 kJ/kg and was comparable to that of brown coal and lignite. Higher formation of fixed carbon and greater oxygen dissociation during HTSW were thought to improve the HV of char. Cl atoms added as PVC powder and sodium chloride to raw material remained in char after HTSW. However, most Cl originating from PVC was found to converse into soluble Cl compounds during HTSW under the HT condition and could be removed by washing. From these results, the merit of HTSW as a method of recovering solid fuel from MSW is considered to produce char with minimal carbon loss without a drying process prior to HTSW. In addition, Cl originating from PVC decomposes into soluble Cl compound under the HT condition. The combination of HTSW under the HT condition and char washing might improve the quality of char as alternative fuel.

Hwang, In-Hee, E-mail: hwang@eng.hokudai.ac.jp [Laboratory of Solid Waste Disposal Engineering, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo 060 8628 (Japan); Aoyama, Hiroya; Matsuto, Toshihiko; Nakagishi, Tatsuhiro; Matsuo, Takayuki [Laboratory of Solid Waste Disposal Engineering, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo 060 8628 (Japan)

2012-03-15T23:59:59.000Z

71

Instabilities during liquid migration into superheated hydrothermal systems  

SciTech Connect (OSTI)

Hydrothermal systems typically consist of hot permeable rock which contains either liquid or liquid and saturated steam within the voids. These systems vent fluids at the surface through hot springs, fumaroles, mud pools, steaming ground and geysers. They are simultaneously recharged as meteoric water percolates through the surrounding rock or through the active injection of water at various geothermal reservoirs. In a number of geothermal reservoirs from which significant amounts of hot fluid have been extracted and passed through turbines, superheated regions of vapor have developed. As liquid migrates through a superheated region of a hydrothermal system, some of the liquid vaporizes at a migrating liquid-vapor interface. Using simple physical arguments, and analogue laboratory experiments we show that, under the influence of gravity, the liquid-vapor interface may become unstable and break up into fingers.

Fitzgerald, Shaun D.; Woods, Andrew W.

1995-01-26T23:59:59.000Z

72

"Hot Water" in Lassen Volcanic National Park--Fumaroles, Steaming Ground, and Boiling Mudpots  

E-Print Network [OSTI]

"Hot Water" in Lassen Volcanic National Park-- Fumaroles, Steaming Ground, and Boiling Mudpots U, ydrothermal (hot water) and steaming ground. These features are re- lated to active volcanism, the largest fumarole (steam and volcanic-gas vent) in the park. The temperature of the high-velocity steam

Torgersen, Christian

73

Commissioning the Domestic Hot Water System on a Large University Campus: A Case Study  

E-Print Network [OSTI]

was to investigate the causes of these problems and help determine how to best operate the system. It was found that reported problems of low flows, low temperatures and long hot water lag time resulted from reverse flows and no hot water circulation caused by: 1...

Chen, H.; Bensouda, N.; Claridge, D.; Bruner, H.

2004-01-01T23:59:59.000Z

74

Applications of Commercial Heat Pump Water Heaters in Hot, Humid Climates  

E-Print Network [OSTI]

Heat pump water heaters can provide high-efficiency water heating and supplemental space cooling and dehumidification in commercial buildings throughout the United States. They are particularly attractive in hot, humid areas where cooling loads...

Johnson, K. F.; Shedd, A. C.

75

Dynamics of microdroplets over the surface of hot water  

E-Print Network [OSTI]

When drinking a cup of coffee under the morning sunshine, you may notice white membranes of steam floating on the surface of the hot water. They stay notably close to the surface and appear to almost stick to it. Although the membranes whiffle because of the air flow of rising steam, peculiarly fast splitting events occasionally occur. They resemble cracking to open slits approximately 1 mm wide in the membranes, and leave curious patterns. We studied this phenomenon using a microscope with a high-speed video camera and found intriguing details: i) the white membranes consist of fairly monodispersed small droplets of the order of 10 $\\mu\\,{\\rm m}$; ii) they levitate above the water surface by 10$\\sim$100 $\\mu{\\rm m}$; iii) the splitting events are a collective disappearance of the droplets, which propagates as a wave front of the surface wave with a speed of 1$\\sim$2 m/s; and iv) these events are triggered by a surface disturbance, which results from the disappearance of a single droplet.

Takahiro Umeki; Masahiko Ohata; Hiizu Nakanishi; Masatoshi Ichikawa

2015-01-03T23:59:59.000Z

76

Validation of a Hot Water Distribution Model Using Laboratory and Field Data  

SciTech Connect (OSTI)

Characterizing the performance of hot water distribution systems is a critical step in developing best practice guidelines for the design and installation of high performance hot water systems. Developing and validating simulation models is critical to this effort, as well as collecting accurate input data to drive the models. In this project, the ARBI team validated the newly developed TRNSYS Type 604 pipe model against both detailed laboratory and field distribution system performance data. Validation efforts indicate that the model performs very well in handling different pipe materials, insulation cases, and varying hot water load conditions. Limitations of the model include the complexity of setting up the input file and long simulation run times. In addition to completing validation activities, this project looked at recent field hot water studies to better understand use patterns and potential behavioral changes as homeowners convert from conventional storage water heaters to gas tankless units. Based on these datasets, we conclude that the current Energy Factor test procedure overestimates typical use and underestimates the number of hot water draws. This has implications for both equipment and distribution system performance. Gas tankless water heaters were found to impact how people use hot water, but the data does not necessarily suggest an increase in usage. Further study in hot water usage and patterns is needed to better define these characteristics in different climates and home vintages.

Backman, C.; Hoeschele, M.

2013-07-01T23:59:59.000Z

77

Boiling Water at Hot Creek--The Dangerous and Dynamic Thermal Springs in California's Long Valley Caldera  

E-Print Network [OSTI]

). Conditions in Hot Creek can change very quickly. These fish--caught in a burst of high-temperature water" or intermittently spurting very hot, sediment-laden water as high as 6 feet (2 m) above the stream surface. At timesBoiling Water at Hot Creek--The Dangerous and Dynamic Thermal Springs in California's Long Valley

Torgersen, Christian

78

DRILLED HYDROTHERMAL ENERGY Drilling for seawater  

E-Print Network [OSTI]

Energy Hydrothermal Cooling 90% saving over Mechanical cooling Coordination With Offshore OTEC Plant to seep in #12;DRILLED HYDROTHERMAL ENERGY BACKGROUND Not BOTH From the SAME Conduit Investment OFFSHORE Facilities Drilled Hydrothermal Energy Plant Cooling Power Biofuel / H2 Fresh Water DRILLED HYDROTHERMAL

79

Final report : testing and evaluation for solar hot water reliability.  

SciTech Connect (OSTI)

Solar hot water (SHW) systems are being installed by the thousands. Tax credits and utility rebate programs are spurring this burgeoning market. However, the reliability of these systems is virtually unknown. Recent work by Sandia National Laboratories (SNL) has shown that few data exist to quantify the mean time to failure of these systems. However, there is keen interest in developing new techniques to measure SHW reliability, particularly among utilities that use ratepayer money to pay the rebates. This document reports on an effort to develop and test new, simplified techniques to directly measure the state of health of fielded SHW systems. One approach was developed by the National Renewable Energy Laboratory (NREL) and is based on the idea that the performance of the solar storage tank can reliably indicate the operational status of the SHW systems. Another approach, developed by the University of New Mexico (UNM), uses adaptive resonance theory, a type of neural network, to detect and predict failures. This method uses the same sensors that are normally used to control the SHW system. The NREL method uses two additional temperature sensors on the solar tank. The theories, development, application, and testing of both methods are described in the report. Testing was performed on the SHW Reliability Testbed at UNM, a highly instrumented SHW system developed jointly by SNL and UNM. The two methods were tested against a number of simulated failures. The results show that both methods show promise for inclusion in conventional SHW controllers, giving them advanced capability in detecting and predicting component failures.

Caudell, Thomas P. (University of New Mexico, Albuquerque, NM) [University of New Mexico, Albuquerque, NM; He, Hongbo (University of New Mexico, Albuquerque, NM) [University of New Mexico, Albuquerque, NM; Menicucci, David F. (Building Specialists, Inc., Albuquerque, NM) [Building Specialists, Inc., Albuquerque, NM; Mammoli, Andrea A. (University of New Mexico, Albuquerque, NM) [University of New Mexico, Albuquerque, NM; Burch, Jay (National Renewable Energy Laboratory, Golden CO) [National Renewable Energy Laboratory, Golden CO

2011-07-01T23:59:59.000Z

80

Design and Experiments of a Solar Low-temperature Hot Water Floor Radiant Heating System  

E-Print Network [OSTI]

The solar low-temperature hot water floor radiant heating system combines solar energy heating with floor radiant heating. This kind of environmental heating way not only saves fossil resources and reduces pollution, but also makes people feel more...

Wu, Z.; Li, D.

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrothermal hot water" 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

Rock-Water Interactions In Hot Dry Rock Geothermal Systems- Field...  

Open Energy Info (EERE)

Rock-Water Interactions In Hot Dry Rock Geothermal Systems- Field Investigations Of In Situ Geochemical Behavior Jump to: navigation, search OpenEI Reference LibraryAdd to library...

82

Rock-Water Interactions in the Fenton Hill, New Mexico, Hot Dry...  

Open Energy Info (EERE)

to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Rock-Water Interactions in the Fenton Hill, New Mexico, Hot Dry Rock Geothermal Systems I. Fluid...

83

Rock-Water Interactions in the Fenton Hill, New Mexico, Hot Dry...  

Open Energy Info (EERE)

to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Rock-Water Interactions in the Fenton Hill, New Mexico, Hot Dry Rock Geothermal Systems II....

84

TYPICAL HOT WATER DRAW PATTERNS BASED ON FIELD DATA  

E-Print Network [OSTI]

for Rating Residential Water Heaters. Atlanta, GA: ASHRAE,for Residential Water Heaters, Direct Heating Equipment, andthe Energy Consumption of Water Heaters. Title 10 Code of

Lutz, Jim

2014-01-01T23:59:59.000Z

85

Z .Marine Chemistry 64 1999 229252 The chemical composition of shallow-water hydrothermal fluids  

E-Print Network [OSTI]

; accepted 1 September 1998 Abstract Z .Submarine, hydrothermal venting occurs at Tutum Bay in shallow 5­10 m in Tutum Bay, Ambitle Island, Papua New Guinea and their effect on ambient seawater Thomas Pichler a,) , Jan Veizer a,b , Gwendy E.M. Hall c a Ottawa-Carleton Geoscience Centre, Uni?ersity of Ottawa, Ottawa

Pichler, Thomas

86

TYPICAL HOT WATER DRAW PATTERNS BASED ON FIELD DATA  

E-Print Network [OSTI]

gas or electric storage water heaters. The goal was to helpa demand and a storage water heater. For each case ofof natural gas storage and tankless water heaters 24 water

Lutz, Jim

2014-01-01T23:59:59.000Z

87

Recovery of energy from geothermal brine and other hot water sources  

DOE Patents [OSTI]

Process and system for recovery of energy from geothermal brines and other hot water sources, by direct contact heat exchange between the brine or hot water, and an immiscible working fluid, e.g. a hydrocarbon such as isobutane, in a heat exchange column, the brine or hot water therein flowing countercurrent to the flow of the working fluid. The column can be operated at subcritical, critical or above the critical pressure of the working fluid. Preferably, the column is provided with a plurality of sieve plates, and the heat exchange process and column, e.g. with respect to the design of such plates, number of plates employed, spacing between plates, area thereof, column diameter, and the like, are designed to achieve maximum throughput of brine or hot water and reduction in temperature differential at the respective stages or plates between the brine or hot water and the working fluid, and so minimize lost work and maximize efficiency, and minimize scale deposition from hot water containing fluid including salts, such as brine. Maximum throughput approximates minimum cost of electricity which can be produced by conversion of the recovered thermal energy to electrical energy.

Wahl, III, Edward F. (Claremont, CA); Boucher, Frederic B. (San Juan Capistrano, CA)

1981-01-01T23:59:59.000Z

88

Hydrothermal Processing  

SciTech Connect (OSTI)

This chapter is a contribution to a book on Thermochemical Conversion of Biomass being edited by Prof. Robert Brown of Iowa State University. It describes both hydrothermal liquefaction and hydrothermal gasification of biomass to fuels.

Elliott, Douglas C.

2011-03-11T23:59:59.000Z

89

Measured electric hot water standby and demand loads from Pacific Northwest homes  

SciTech Connect (OSTI)

The Bonneville Power Administration began the End-Use Load and Consumer Assessment Program (ELCAP) in 1983 to obtain metered hourly end-use consumption data for a large sample of new and existing residential and commercial buildings in the Pacific Northwest. Loads and load shapes from the first 3 years of data fro each of several ELCAP residential studies representing various segments of the housing population have been summarized by Pratt et al. The analysis reported here uses the ELCAP data to investigate in much greater detail the relationship of key occupant and tank characteristics to the consumption of electricity for water heating. The hourly data collected provides opportunities to understand electricity consumption for heating water and to examine assumptions about water heating that are critical to load forecasting and conservation resource assessments. Specific objectives of this analysis are to: (A) determine the current baseline for standby heat losses by determining the standby heat loss of each hot water tank in the sample, (B) examine key assumptions affecting standby heat losses such as hot water temperatures and tank sizes and locations, (C) estimate, where possible, impacts on standby heat losses by conservation measures such as insulating tank wraps, pipe wraps, anticonvection valves or traps, and insulating bottom boards, (D) estimate the EF-factors used by the federal efficiency standards and the nominal R-values of the tanks in the sample, (E) develop estimates of demand for hot water for each home in the sample by subtracting the standby load from the total hot water load, (F) examine the relationship between the ages and number of occupants and the hot water demand, (G) place the standby and demand components of water heating electricity consumption in perspective with the total hot water load and load shape.

Pratt, R.G.; Ross, B.A.

1991-11-01T23:59:59.000Z

90

Our Environment in Hot Water: Comparing Water Heaters, A Life Cycle Approach Comparing Tank and Tankless Water Heaters in California  

SciTech Connect (OSTI)

Residential water heating is a large source of energy use in California homes. This project took a life cycle approach to comparing tank and tankless water heaters in Northern and Southern California. Information about the life cycle phases was calculated using the European Union?s Methodology study for EcoDesign of Energy-using Products (MEEUP) and the National Renewable Energy Laboratory?s Life Cycle Inventory (NREL LCI) database. In a unit-to-unit comparison, it was found that tankless water heaters would lessen impacts of water heating by reducing annual energy use by 2800 MJ/year (16% compared to tank), and reducing global warming emissions by 175 kg CO2 eqv./year (18% reduction). Overall, the production and combustion of natural gas in the use phase had the largest impact. Total waste, VOCs, PAHs, particulate matter, and heavy-metals-to-air categories were also affected relatively strongly by manufacturing processes. It was estimated that tankless water heater users would have to use 10 more gallons of hot water a day (an increased usage of approximately 20%) to have the same impact as tank water heaters. The project results suggest that if a higher percentage of Californians used tankless water heaters, environmental impacts caused by water heating would be smaller.

Lu, Alison; McMahon, James; Masanet, Eric; Lutz, Jim

2008-08-13T23:59:59.000Z

91

Hydrothermal synthesis of yttria stabilized ZrO{sub 2} nanoparticles in subcritical and supercritical water using a flow reaction system  

SciTech Connect (OSTI)

Yttria stabilized zirconia nanoparticles have been prepared by hydrothermal flow reaction system under subcritical and supercritical conditions. ZrO(NO{sub 3}){sub 2}/Y(NO{sub 3}){sub 3} mixed solutions were used as starting materials. Reaction temperature was 300-400 deg. C. Reaction time was adjusted to 0.17-0.35 s. Based on the residual Zr and Y concentrations, the complete conversion of zirconium was achieved irrespective of pH and hydrothermal temperature, whereas the conversion of yttrium increased with an increase in pH and hydrothermal temperature. Stoichiometric solid solution was achieved at pH>8. XRD results revealed that tetragonal zirconia can be formed regardless of yttrium content, where the tetragonality was confirmed by Raman spectroscopy. The average particle size estimated from BET surface area was around 4-6 nm. Dynamic light scattering particle size increased with the solution pH owing to the aggregation of primary particles. TG-DTA analyses revealed that weight losses for adsorbed water and hydroxyl groups decreased with hydrothermal temperature. - Graphical abstract: Nanoparticles of YSZ can be synthesized in subcritical and supercritical water using a hydrothermal flow reaction system. Given is the TEM image of YSZ nanoparticles.

Hayashi, Hiromichi, E-mail: h-hayashi@aist.go.j [Research Center for Compact Chemical Process, National Institute of Advanced Industrial Science and Technology (AIST), Nigatake 4-2-1, Miyagino-ku, Sendai 983-8551 (Japan); Ueda, Akiko; Suino, Atsuko; Hiro, Kyoko; Hakuta, Yukiya [Research Center for Compact Chemical Process, National Institute of Advanced Industrial Science and Technology (AIST), Nigatake 4-2-1, Miyagino-ku, Sendai 983-8551 (Japan)

2009-11-15T23:59:59.000Z

92

Hot New Advances in Water Heating Technology | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun withconfinement plasmas inPortalAll NERSC userNewhighDiff- EnergyHot New

93

Solar Hot Water Resources and Technologies | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage » SearchEnergyDepartmentScoping Study |4 Solar BackgroundGivesof EnergyHot

94

ENERGY USE AND DOMESTIC HOT WATER CONSUMPTION Final Report  

Office of Scientific and Technical Information (OSTI)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartmentNationalRestart ofMeasuring DopamineEnergy,6.DavidE-print NetworkUSE AND DOMESTIC HOT

95

Cody hydrothermal system  

SciTech Connect (OSTI)

The hot springs of Colter's Hell are the surface manifestations of a much larger hydothermal system. That system has been studied to define its extent, maximum temperature, and mechanism of operation. The study area covers 2700 km/sup 2/ (1040 mi/sup 2/) in northwest Wyoming. Research and field work included locating and sampling the hot springs, geologic mapping, thermal logging of available wells, measuring thermal conductivities, analyzing over 200 oil and gas well bottom-hole temperatures, and compiling and analyzing hydrologic data. These data were used to generate a model for the hydrothermal system.

Heasler, H.P.

1982-01-01T23:59:59.000Z

96

DOE ZERH Webinar: Efficient Hot Water Distribution I: What's...  

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

water plumbing systems including the key performance metrics to understand, and how piping, pumps, and fixtures come together to create a good (or bad) system. View the...

97

Sacramento Ordinance to Waive Fees for Solar Hot Water  

Broader source: Energy.gov [DOE]

An ordinance suspending for the calendar years 2007-2009 all fees related to installations of solar water heaters on existing residences.

98

NV Energy (Northern Nevada)- Solar Hot Water Incentive Program  

Broader source: Energy.gov [DOE]

NV Energy is providing an incentive for its residential customers, small commercial, nonprofit, school and other public customers to install solar water heaters on their homes and facilities. ...

99

Solar Water Heating: What's Hot and What's Not  

E-Print Network [OSTI]

A handful of electric utilities in the United States now pay incentives to their customers to install solar water heaters or are developing programs to do so. The solar water heater incentives are part of a broader utility demand-side management...

Stein, J.

100

Opportunities for utility involvement with solar domestic hot water  

SciTech Connect (OSTI)

Solar water heating is one of a number of options that can be considered under utility demand-side management (DSM) programs. Utilities perceive a range of potential benefits for solar water heating in terms of customer service, energy conservation, load management, environmental enhancement, and public relations. The solar industry may benefit from utility marketing efforts, economies of scale, added credibility, financing options, and long-term maintenance arrangements. This paper covers three topics: (1) the energy and demand impacts of solar water heating on utility load profiles based on the results of four studies in the literature, (2) the results of workshops sponsored by the National Renewable Energy Laboratory (NREL) to identify key issues faced by utilities in considering residential solar water heating as a DSM option, (3) several current or planned utility programs to promote solar water heating. 7 refs.

Carlisle, N.; Christensen, C. (National Renewable Energy Lab., Golden, CO (United States)); Barrett, L. (Barrett Consulting Associates, Inc., Colorado Springs, CO (United States))

1992-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrothermal hot water" 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

Solar heating and hot water system installed at office building, One Solar Place, Dallas, Texas. Final report  

SciTech Connect (OSTI)

This document is the Final Report of the Solar Energy System Installed at the First Solar Heated Office Building, One Solar Place, Dallas, Texas. The Solar System was designed to provide 87 percent of the space heating needs, 100 percent of the potable hot water needs and is sized for future absorption cooling. The collection subsystem consists of 28 Solargenics, series 76, flat plate collectors with a total area of 1596 square feet. The solar loop circulates an ethylene glycol-water solution through the collectors into a hot water system heat exchanger. The hot water storage subsystem consists of a heat exchanger, two 2300 gallon concrete hot water storage tanks with built in heat exchangers and a back-up electric boiler. The domestic hot water subsystem sends hot water to the 10,200 square feet floor area office building hot water fixtures. The building cold water system provides make-up to the solar loop, the heating loop, and the hot water concrete storage tanks. The design, construction, cost analysis, operation and maintenance of the solar system are described. The system became operational July 11, 1979.

Not Available

1980-06-01T23:59:59.000Z

102

New Hampshire Electric Co-Op- Solar Hot Water  

Broader source: Energy.gov [DOE]

New Hampshire Electric Co-Op (NHEC) offers rebates to residential customers who install qualified solar water-heating systems. The rebate is equal to 20% of installed system costs, with a maximum...

103

NV Energy (Southern Nevada)- Solar Hot Water Incentive Program  

Broader source: Energy.gov [DOE]

NV Energy is providing an incentive for its residential customers to install solar water heaters on their homes. As of July 26, 2013, NV Energy electric customers in Southern Nevada who own their...

104

Hot water tank for use with a combination of solar energy and heat-pump desuperheating  

DOE Patents [OSTI]

A water heater or system is described which includes a hot water tank having disposed therein a movable baffle to function as a barrier between the incoming volume of cold water entering the tank and the volume of heated water entering the tank which is heated by the circulation of the cold water through a solar collector and/or a desuperheater of a heat pump so as to optimize the manner in which heat is imparted to the water in accordance to the demand on the water heater or system. A supplemental heater is also provided and it is connected so as to supplement the heating of the water in the event that the solar collector and/or desuperheater cannot impart all of the desired heat input into the water.

Andrews, J.W.

1980-06-25T23:59:59.000Z

105

Hot water tank for use with a combination of solar energy and heat-pump desuperheating  

DOE Patents [OSTI]

A water heater or system which includes a hot water tank having disposed therein a movable baffle to function as a barrier between the incoming volume of cold water entering the tank and the volume of heated water entering the tank which is heated by the circulation of the cold water through a solar collector and/or a desuperheater of a heat pump so as to optimize the manner in which heat is imparted to the water in accordance to the demand on the water heater or system. A supplemental heater is also provided and it is connected so as to supplement the heating of the water in the event that the solar collector and/or desuperheater cannot impart all of the desired heat input into the water.

Andrews, John W. (Sag Harbor, NY)

1983-06-28T23:59:59.000Z

106

Trout in hot water Understanding the effects of climate change on ecosystems is a complex  

E-Print Network [OSTI]

Trout in hot water Understanding the effects of climate change on ecosystems is a complex business as we set out for the Hengill geothermal valley. You might think of Iceland as a cold, dark country up the breakdown of organic matter and nutrients are recycled more quickly, leading to more resources

Brierley, Andrew

107

Comparison Between TRNSYS Software Simulation and F-Chart Program on Solar Domestic Hot Water System  

E-Print Network [OSTI]

This study presents the accuracy test of a TRNSYS Solar Domestic Hot Water (SDHW) System simulation. The testing is based on comparing the results with the F-Chart software. The selected system to carry out the tests was the Active Solar Domestic...

Haberl, J. S.; Baltazar, J. C.; Mao, C.

2012-01-01T23:59:59.000Z

108

Experimental comparison of hot water/propane injection to steam/propane injection for recovery of heavy oil  

E-Print Network [OSTI]

, attempts have been made to inject hot water instead of steam. The results have all been rather poor, the major problem being low sweep efficiency. The hot water just doesn?t enhance oil recovery enough. Adding propane to the steam injected in the reservoir...

Nesse, Thomas

2005-02-17T23:59:59.000Z

109

Water, Vapor, and Salt Dynamics in a Hot Repository  

SciTech Connect (OSTI)

The purpose of this paper is to report the results of a new model study examining the high temperature nuclear waste disposal concept at Yucca Mountain using MULTIFLUX, an integrated in-drift- and mountain-scale thermal-hydrologic model. The results show that a large amount of vapor flow into the drift is expected during the period of above-boiling temperatures. This phenomenon makes the emplacement drift a water/moisture attractor during the above-boiling temperature operation. The evaporation of the percolation water into the drift gives rise to salt accumulation in the rock wall, especially in the crown of the drift for about 1500 years in the example. The deposited salts over the drift footprint, almost entirely present in the fractures, may enter the drift either by rock fall or by water drippage. During the high temperature operation mode, the barometric pressure variation creates fluctuating relative humidity in the emplacement drift with a time period of approximately 10 days. Potentially wet and dry conditions and condensation on salt-laden drift wall sections may adversely affect the storage environment. Salt accumulations during the above-boiling temperature operation must be sufficiently addressed to fully understand the waste package environment during the thermal period. Until the questions are resolved, a below-boiling repository design is favored where the Alloy-22 will be less susceptible to localized corrosion. (authors)

Bahrami, Davood; Danko, George [Department of Mining Engineering, University of Nevada, Reno, 1664 N. Virginia St., Reno, NV, 89557 (United States); Walton, John [Department of Civil Engineering, University of Texas at El Paso, 500 W. University, El Paso, TX, 79968 (United States)

2007-07-01T23:59:59.000Z

110

Promising freeze protection alternatives in solar domestic hot water systems  

SciTech Connect (OSTI)

Since the gains associated with solar thermal energy technologies are comparatively small in relation to the required capital investment, it is vital to maximize conversion efficiency. While providing the necessary function of freeze protection, the heat exchanger commonly included in solar domestic water heating systems represents a system inefficiency. This thesis explores two alternate methods of providing freeze protection without resorting to a heat exchanger. Commonly, collectors are made of rigid copper tubes separated by copper or aluminum fins. Cracking damage can occur when water is allowed to freeze and expand inside the non compliant tubes. The possibility of making collectors out of an elastic material was investigated and shown to be effective. Since unlike copper, elastomers typically have low thermal conductivities, the standard collector performance prediction equations do not apply. Modified thermal performance prediction equations were developed which can be used for both low and high thermal conductivity materials to provide accurate predictions within a limited range of plate geometries. An elastomeric collector plate was then designed and shown to have comparable performance to a copper plate collector whose aperture area is approximately 33% smaller. Another options for providing freeze protection to an SDHW system is to turn it off during the winter. Choosing a three-season operating period means two things. First, the system will have different optimums such as slope and collector area. Second, the wintertime solar energy incident on the collector is unavailable for meeting a heating load. However, the system`s heat exchanger becomes unnecessary and removing it increases the amount of energy that arrives at the storage tank during those periods in which the system is operating.

Bradley, D.E.

1997-12-31T23:59:59.000Z

111

Measure Guideline: Combination Forced-Air Space and Tankless Domestic Hot Water Heating Systems  

SciTech Connect (OSTI)

This document describes design and application guidance for combination space and tankless domestic hot water heating systems (combination systems) used in residential buildings, based on field evaluation, testing, and industry meetings conducted by Building Science Corporation. As residential building enclosure improvements continue to drive heating loads down, using the same water heating equipment for both space heating and domestic water heating becomes attractive from an initial cost and space-saving perspective. This topic is applicable to single- and multi-family residential buildings, both new and retrofitted.

Rudd, A.

2012-08-01T23:59:59.000Z

112

Hot water decontamination of beef carcasses to increase microbiological safety and shelf-life  

E-Print Network [OSTI]

). The spraying system functioned by circulating hot water from the water bath to the spray gun at a given pressure and temperature. The pressure was constantly monitored by a pressure gauge (Marshall Town 88901, USA) installed in the valve junction.... The temperature m the water bath was monitored by a digital thermometer (Tegam 871, Digital Thermometer) with a type K thermocouple sensor. Also, the temperature of the spray coming out of the jet was measured with a thermocouple inserted and sealed in the tip...

Barakate, Michelle Lee

2012-06-07T23:59:59.000Z

113

Sometimes hot water will have a "sour" smell, similar to that of an old damp rag. This smell often  

E-Print Network [OSTI]

. Odor-causing bacteria live and thrive in warm water and can infest the water heater. The problem (approximately 160 degrees F) for 8 hours. This will kill the bacteria. (Caution: Be sure the water heater has#12;Sometimes hot water will have a "sour" smell, similar to that of an old damp rag. This smell

114

Surface water supply for the Clearlake, California Hot Dry Rock Geothermal Project  

SciTech Connect (OSTI)

It is proposed to construct a demonstration Hot Dry Rock (HDR) geothermal plant in the vicinity of the City of Clearlake. An interim evaluation has been made of the availability of surface water to supply the plant. The evaluation has required consideration of the likely water consumption of such a plant. It has also required consideration of population, land, and water uses in the drainage basins adjacent to Clear Lake, where the HDR demonstration project is likely to be located. Five sources were identified that appear to be able to supply water of suitable quality in adequate quantity for initial filling of the reservoir, and on a continuing basis, as makeup for water losses during operation. Those sources are California Cities Water Company, a municipal supplier to the City of Clearlake; Clear Lake, controlled by Yolo County Flood Control and Water Conservation District; Borax Lake, controlled by a local developer; Southeast Regional Wastewater Treatment Plant, controlled by Lake County; and wells, ponds, and streams on private land. The evaluation involved the water uses, water rights, stream flows, precipitation, evaporation, a water balance, and water quality. In spite of California`s prolonged drought, the interim conclusion is that adequate water is available at a reasonable cost to supply the proposed HDR demonstration project.

Jager, A.R.

1996-03-01T23:59:59.000Z

115

Aqueous geochemistry of the Thermopolis hydrothermal system, southern Bighorn Basin, Wyoming, U.S.A.  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

The Thermopolis hydrothermal system is located in the southern portion of the Bighorn Basin, in and around the town of Thermopolis, Wyoming. It is the largest hydrothermal system in Wyoming outside of Yellowstone National Park. The system includes hot springs, travertine deposits, and thermal wells; published models for the hydrothermal system propose the Owl Creek Mountains as the recharge zone, simple conductive heating at depth, and resurfacing of thermal waters up the Thermopolis Anticline. The geochemistry of the thermal waters of three active hot springs, Big Spring, White Sulfur Spring, and Teepee Fountain, is similar in composition; the geochemistry is characteristic of carbonate or carbonate-bearing siliciclastic aquifers. Previous studies of the Thermopolis hydrothermal system postulate that the thermal waters are a mixture of waters from Paleozoic formations. Major element geochemical analyses available for waters from these formations is not of sufficient quality to determine whether the thermal waters are a mixture of the Paleozoic aquifers. In the time frame of this study (1 year), the geochemistry of all three springs was constant through all four seasons, spanning spring snowmelt and recharge as well as late summer and fall dryness. This relationship is consistent with a deep source not influenced by shallow, local hydrogeology. Anomalies are evident in the historic dataset for the geochemistry of Big Spring. We speculate that anomalies occurring between 1906 and 1926 suggest mixing of source waters of Big Spring with waters from a siliciclastic formation, and that anomalies occurring between 1926 and 1933 suggest mixing with waters from a formation containing gypsum or anhydrite. Decreased concentrations measured in our study, relative to concentrations measured between 1933 and 1976, may reflect mixing of thermal waters with more dilute waters. Current data is not sufficient to rigorously test these suggestions, and events of sufficient scale taking place in these timeframes have not been identified.

Kaszuba, John P. [University of Wyoming; Sims, Kenneth W.W. [University of Wyoming; Pluda, Allison R.

2014-03-01T23:59:59.000Z

116

Evaluating Domestic Hot Water Distribution System Options With Validated Analysis Models  

SciTech Connect (OSTI)

A developing body of work is forming that collects data on domestic hot water consumption, water use behaviors, and energy efficiency of various distribution systems. A full distribution system developed in TRNSYS has been validated using field monitoring data and then exercised in a number of climates to understand climate impact on performance. This study builds upon previous analysis modelling work to evaluate differing distribution systems and the sensitivities of water heating energy and water use efficiency to variations of climate, load, distribution type, insulation and compact plumbing practices. Overall 124 different TRNSYS models were simulated. Of the configurations evaluated, distribution losses account for 13-29% of the total water heating energy use and water use efficiency ranges from 11-22%. The base case, an uninsulated trunk and branch system sees the most improvement in energy consumption by insulating and locating the water heater central to all fixtures. Demand recirculation systems are not projected to provide significant energy savings and in some cases increase energy consumption. Water use is most efficient with demand recirculation systems, followed by the insulated trunk and branch system with a central water heater. Compact plumbing practices and insulation have the most impact on energy consumption (2-6% for insulation and 3-4% per 10 gallons of enclosed volume reduced). The results of this work are useful in informing future development of water heating best practices guides as well as more accurate (and simulation time efficient) distribution models for annual whole house simulation programs.

Weitzel, E.; Hoeschele, M.

2014-09-01T23:59:59.000Z

117

A Sr-Isotopic Comparison Between Thermal Waters, Rocks, And Hydrothermal  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 SouthWater Rights, Substantive(Sichuan,FinancialTracer Tests

118

Multielement geochemistry of solid materials in geothermal systems and its applications. Part 1. Hot-water system at the Roosevelt Hot Springs KGRA, Utah  

SciTech Connect (OSTI)

Geochemical studies of the geothermal system at Roosevelt Hot Springs, Utah, have led to development of chemical criteria for recognition of major features of the system and to a three-dimensional model for chemical zoning in the system. Based on this improved level of understanding several new or modified geochemical exploration and assessment techniques have been defined and are probably broadly applicable to evaluation of hot-water geothermal systems. The main purpose of this work was the development or adaptation of solids geochemical exploration techniques for use in the geothermal environment. (MHR)

Bamford, R.W.; Christensen, O.D.; Capuano, R.M.

1980-02-01T23:59:59.000Z

119

The potential for photosynthesis in hydrothermal vents: a new avenue for life in the Universe?  

E-Print Network [OSTI]

We perform a quantitative assessment for the potential for photosynthesis in hydrothermal vents in the deep ocean. The photosynthetically active radiation in this case is from geothermal origin: the infrared thermal radiation emitted by hot water, at temperatures ranging from 473 up to 673 K. We find that at these temperatures the photosynthetic potential is rather low in these ecosystems for most known species. However, species which a very high efficiency in the use of light and which could use infrared photons till 1300nm, could achieve good rates of photosynthesis in hydrothermal vents. These organisms might also thrive in deep hydrothermal vents in other planetary bodies, such as one of the more astrobiologically promising Jupiter satellites: Europa.

Perez, Noel; Martin, Osmel; Leiva-Mora, Michel

2013-01-01T23:59:59.000Z

120

Hydrothermal Circulation At Mount St Helens Determined By Self...  

Open Energy Info (EERE)

of the SP field, low surface recharge rate, and magmatic component to fumarole condensates and thermal waters suggest the hydrothermal system is maintained by water vapor...

Note: This page contains sample records for the topic "hydrothermal hot water" 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

Measured electric hot water standby and demand loads from Pacific Northwest homes. End-Use Load and Consumer Assessment Program  

SciTech Connect (OSTI)

The Bonneville Power Administration began the End-Use Load and Consumer Assessment Program (ELCAP) in 1983 to obtain metered hourly end-use consumption data for a large sample of new and existing residential and commercial buildings in the Pacific Northwest. Loads and load shapes from the first 3 years of data fro each of several ELCAP residential studies representing various segments of the housing population have been summarized by Pratt et al. The analysis reported here uses the ELCAP data to investigate in much greater detail the relationship of key occupant and tank characteristics to the consumption of electricity for water heating. The hourly data collected provides opportunities to understand electricity consumption for heating water and to examine assumptions about water heating that are critical to load forecasting and conservation resource assessments. Specific objectives of this analysis are to: (A) determine the current baseline for standby heat losses by determining the standby heat loss of each hot water tank in the sample, (B) examine key assumptions affecting standby heat losses such as hot water temperatures and tank sizes and locations, (C) estimate, where possible, impacts on standby heat losses by conservation measures such as insulating tank wraps, pipe wraps, anticonvection valves or traps, and insulating bottom boards, (D) estimate the EF-factors used by the federal efficiency standards and the nominal R-values of the tanks in the sample, (E) develop estimates of demand for hot water for each home in the sample by subtracting the standby load from the total hot water load, (F) examine the relationship between the ages and number of occupants and the hot water demand, (G) place the standby and demand components of water heating electricity consumption in perspective with the total hot water load and load shape.

Pratt, R.G.; Ross, B.A.

1991-11-01T23:59:59.000Z

122

Hydrothermal interaction of crushed Topopah Spring tuff and J-13 water at 90, 150, and 250{sup 0}C using Dickson-type, gold-bag rocking autoclaves  

SciTech Connect (OSTI)

As part of the Package Environment subtask of the Waste Package task within the Nevada Nuclear Waste Storage Investigations (NNWSI) Project, experiments were conducted to study the hydrothermal interaction of rock and water representative of a potential high-level waste repository in tuff. These experiments used crushed Topopah Spring tuff from both drillcore and outcrop samples. The data, when considered in conjunction with results from analogous experiments using solid wafers of tuff, define near-field repository conditions and can be used to assess the ability to use "accelerated" tests based on the surface area/volume (SA/V) parameter and temperature; allow the measurement of chemical changes due to reaction in phases present in the tuff before reaction; and permit the identification and chemical analysis of secondary phases resulting from hydrothermal reactions. Some of the results presented in this report have been used to demonstrate the usefulness of geochemical modeling in a repository environment using the EQ3/6 thermodynamic/kinetic geochemical modeling code. The tuff was reacted with a natural ground water in Dickson-type gold-bag rocking autoclaves that were periodically sampled under in situ conditions. Five short-term (<90-day) experiments using crushed tuff were run covering the range 90 to 250{sup 0}C and 50 to 100 bars. This report will focus on the results of experiments with crushed tuff, while a companion report will cover results of analogous short-term experiments run with solid waters of tuff.

Knauss, K.G.; Beiriger, W.J.; Peifer, D.W.

1985-05-01T23:59:59.000Z

123

Our Environment in Hot Water: Comparing Water Heaters, A Life Cycle Approach Comparing Tank and Tankless Water Heaters in California  

E-Print Network [OSTI]

unit*year) Heavy Metals to Water Heavy Metals to Water mg NiMatter Emissions (Water) Heavy Metals mg Hg/20 /unit*yearMatter Mg/year Emissions (Water) Heavy Metals Gg Hg/20 /year

Lu, Alison

2011-01-01T23:59:59.000Z

124

Our Environment in Hot Water: Comparing Water Heaters, A Life Cycle Approach Comparing Tank and Tankless Water Heaters in California  

E-Print Network [OSTI]

than standard storage water heaters [2]. However, they aredown for both storage-type water heaters and tankless water1]. The typical water heater storage tank wastes energy to

Lu, Alison

2011-01-01T23:59:59.000Z

125

One Machine for Heating Cooling & Domestic Hot Water: Multi-Function Heat Pumps to Enable Zero Net Energy Homes  

E-Print Network [OSTI]

advances to commercialize stand-alone electric heat-pump storage hot water heaters. These systems offer design uses multiple systems and fuels to provide thermal services, the emerging generation of heat to experience this change as air-source heat-pump water heaters deliver obvious energy savings over electric

California at Davis, University of

126

LWRS Fuels Pathway: Engineering Design and Fuels Pathway Initial Testing of the Hot Water Corrosion System  

SciTech Connect (OSTI)

The Advanced LWR Nuclear Fuel Development R&D pathway performs strategic research focused on cladding designs leading to improved reactor core economics and safety margins. The research performed is to demonstrate the nuclear fuel technology advancements while satisfying safety and regulatory limits. These goals are met through rigorous testing and analysis. The nuclear fuel technology developed will assist in moving existing nuclear fuel technology to an improved level that would not be practical by industry acting independently. Strategic mission goals are to improve the scientific knowledge basis for understanding and predicting fundamental nuclear fuel and cladding performance in nuclear power plants, and to apply this information in the development of high-performance, high burn-up fuels. These will result in improved safety, cladding, integrity, and nuclear fuel cycle economics. To achieve these goals various methods for non-irradiated characterization testing of advanced cladding systems are needed. One such new test system is the Hot Water Corrosion System (HWCS) designed to develop new data for cladding performance assessment and material behavior under simulated off-normal reactor conditions. The HWCS is capable of exposing prototype rodlets to heated, high velocity water at elevated pressure for long periods of time (days, weeks, months). Water chemistry (dissolved oxygen, conductivity and pH) is continuously monitored. In addition, internal rodlet heaters inserted into cladding tubes are used to evaluate repeated thermal stressing and heat transfer characteristics of the prototype rodlets. In summary, the HWCS provides rapid ex-reactor evaluation of cladding designs in normal (flowing hot water) and off-normal (induced cladding stress), enabling engineering and manufacturing improvements to cladding designs before initiation of the more expensive and time consuming in-reactor irradiation testing.

Dr. John Garnier; Dr. Kevin McHugh

2012-09-01T23:59:59.000Z

127

Proposal for the Purchase, Without a Call for Tenders, of a Medium-Temperature Hot Water Boiler for the 300 GeV Accelerator  

E-Print Network [OSTI]

Proposal for the Purchase, Without a Call for Tenders, of a Medium-Temperature Hot Water Boiler for the 300 GeV Accelerator

1976-01-01T23:59:59.000Z

128

U.S. Marine Corps Base Camp Pendleton: Using The Sun For Hot Water And Electricity, Federal Energy Management Program (FEMP) (Fact Sheet)  

SciTech Connect (OSTI)

Case study overview of integrated solar hot water/photovoltaic systems at the U.S. Marine Corps Camp Pendleton training pools.

Not Available

2009-09-01T23:59:59.000Z

129

American Recovery and Reinvestment Act (ARRA) Federal Energy Management Program Technical Assistance Project 281 Solar Hot Water Application Assessment for U.S. Army IMCOM-Southeast Region  

SciTech Connect (OSTI)

The Energy Independence and Security Act of 2007 requires installations (EISA) to install solar systems of sufficient capacity to provide 30% of service hot water in new construction and renovations where cost-effective. However, installations are struggling with how to implement solar hot water, and while several installations are installing solar hot water on a limited basis, paybacks remain long. Pacific Northwest National Laboratory (PNNL) was tasked to address this issue to help determine how best to implement solar hot water projects. This documents discusses the results of that project.

Russo, Bryan J.; Chvala, William D.

2010-09-30T23:59:59.000Z

130

Our Environment in Hot Water: Comparing Water Heaters, A Life Cycle Approach Comparing Tank and Tankless Water Heaters in California  

E-Print Network [OSTI]

Study on Eco-Design of Water Heaters, Van Holstein en Kemnaon Eco-Design of Water Heaters, Task 5 Report, DefinitionTesting of Tankless Gas Water Heater Performance. Davis

Lu, Alison

2011-01-01T23:59:59.000Z

131

Hot Water Distribution System Program Documentation and Comparison to Experimental Data  

SciTech Connect (OSTI)

In 2003, the California Energy Commission s (CEC s) Public Interest Energy Research (PIER) program funded Oak Ridge National Laboratory (ORNL) to create a computer program to analyze hot water distribution systems for single family residences, and to perform such analyses for a selection of houses. This effort and its results were documented in a report provided to CEC in March, 2004 [1]. The principal objective of effort was to compare the water and energy wasted between various possible hot water distribution systems for various different house designs. It was presumed that water being provided to a user would be considered suitably warm when it reached 105 F. Therefore, what was needed was a tool which could compute the time it takes for water reaching the draw point to reach 105 F, and the energy wasted during this wait. The computer program used to perform the analyses was a combination of a calculational core, produced by Dr. Keith A. Woodbury, Professor of Mechanical Engineering and Director, Alabama Industrial Assessment Center, University of Alabama, and a user interface based on LabVIEW, created by Dr. Roberto Lenarduzzi of ORNL. At that time, the computer program was in a relatively rough and undocumented form adequate to perform the contracted work but not in a condition where it could be readily used by those not involved in its generation. Subsequently, the CEC provided funding through Lawrence Berkeley National Laboratory (LBNL) to improve the program s documentation and user interface to facilitate use by others, and to compare the program s results to experimental data generated by Dr. Carl Hiller. This report describes the program and provides user guidance. It also summarizes the comparisons made to experimental data, along with options built into the program specifically to allow these comparisons. These options were necessitated by the fact that some of the experimental data required options and features not originally included in the program. A more detailed description of these program modifications along with detailed comparisons to the experimental data are provided in a report produced by Dr. Woodbury, which accompanies this report as Appendix H.

Baskin, Evelyn [GE Infrastructure Energy; Craddick, William G [ORNL; Lenarduzzi, Roberto [ORNL; Wendt, Robert L [ORNL; Woodbury, Professor Keith A. [University of Alabama, Tuscaloosa

2007-09-01T23:59:59.000Z

132

Analysis of space heating and domestic hot water systems for energy-efficient residential buildings  

SciTech Connect (OSTI)

An analysis of the best ways of meeting the space heating and domestic hot water (DHW) needs of new energy-efficient houses with very low requirements for space heat is provided. The DHW load is about equal to the space heating load in such houses in northern climates. The equipment options which should be considered are discussed, including new equipment recently introduced in the market. It is concluded that the first consideration in selecting systems for energy-efficient houses should be identification of the air moving needs of the house for heat distribution, heat storage, ventilation, and ventilative cooling. This is followed, in order, by selection of the most appropriate distribution system, the heating appliances and controls, and the preferred energy source, gas, oil, or electricity.

Dennehy, G

1983-04-01T23:59:59.000Z

133

Assembly and comparison of available solar hot water system reliability databases and information.  

SciTech Connect (OSTI)

Solar hot water (SHW) systems have been installed commercially for over 30 years, yet few quantitative details are known about their reliability. This report describes a comprehensive analysis of all of the known major previous research and data regarding the reliability of SHW systems and components. Some important conclusions emerged. First, based on a detailed inspection of ten-year-old systems in Florida, about half of active systems can be expected to fail within a ten-year period. Second, valves were identified as the probable cause of a majority of active SHW failures. Third, passive integral and thermosiphon SHW systems have much lower failure rates than active ones, probably due to their simple design that employs few mechanical parts. Fourth, it is probable that the existing data about reliability do not reveal the full extent of fielded system failures because most of the data were based on trouble calls. Often an SHW system owner is not aware of a failure because the backup system silently continues to produce hot water. Thus, a repair event may not be generated in a timely manner, if at all. This final report for the project provides all of the pertinent details about this study, including the source of the data, the techniques to assure their quality before analysis, the organization of the data into perhaps the most comprehensive reliability database in existence, a detailed statistical analysis, and a list of recommendations for additional critical work. Important recommendations include the inclusion of an alarm on SHW systems to identify a failed system, the need for a scientifically designed study to collect high-quality reliability data that will lead to design improvements and lower costs, and accelerated testing of components that are identified as highly problematic.

Menicucci, David F. (Building Specialists, Inc., Albuquerque, NM)

2009-05-01T23:59:59.000Z

134

Our Environment in Hot Water: Comparing Water Heaters, A Life Cycle Approach Comparing Tank and Tankless Water Heaters in California  

E-Print Network [OSTI]

Diagram 1: A Typical Tank Water Heater Source: http://to-unit comparisons of tank versus tankless water heaters.Energy Use MJ/(unit*year) Tank Tankless MJ/(unit*year) Tank

Lu, Alison

2011-01-01T23:59:59.000Z

135

Performance of a solid oxide fuel cell CHP system coupled with a hot water storage tank for  

E-Print Network [OSTI]

Performance of a solid oxide fuel cell CHP system coupled with a hot water storage tank for single storage tank is studied. Thermal stratification in the tank increases the heat recovery performance of the residence. Two fuels are considered, namely syngas and natural gas. The tank model considers the temperature

Berning, Torsten

136

Performance of a Heat Pump Water Heater in the Hot-Humid Climate, Windermere, Florida (Fact Sheet)  

SciTech Connect (OSTI)

Over recent years, heat pump water heaters (HPWHs) have become more readily available and more widely adopted in the marketplace. For a 6-month period, the Building America team Consortium for Advanced Residential Buildings monitored the performance of a GE Geospring HPWH in Windermere, Florida. The study found that the HPWH performed 144% more efficiently than a traditional electric resistance water heater, saving approximately 64% on water heating annually. The monitoring showed that the domestic hot water draw was a primary factor affecting the system's operating efficiency.

Metzger, C.; Puttagunta, S.; Williamson, J.

2013-11-01T23:59:59.000Z

137

Water and Energy Savings using Demand Hot Water Recirculating Systems in Residential Homes: A Case Study of Five Homes in Palo Alto, California  

SciTech Connect (OSTI)

This report summarizes a preliminary study aimed at estimating the potential of saving potable water, (and the electrical energy used to heat it), that is presently lost directly to the drain while occupants wait for hot water to arrive at the faucet (point of use). Data were collected from five single-family homes in Palo Alto, California. Despite the small sample size in this study, the results make a compelling case for retrofitting homes with hot water recirculation systems to eliminate unnecessary wastage of water at the point of use. Technical as well as behavioral and attitudinal changes towards water conservation are necessary for a fulfilling and successful conservation effort. This report focuses on the technical issues, but behavioral issues are also noted, which may be factored into future studies involving local and state governments and utility companies.

Ally, M.R.

2002-11-14T23:59:59.000Z

138

Improving thermosyphon solar domestic hot water system model performance. Final report, March 1994--February 1995  

SciTech Connect (OSTI)

Data from an indoor solar simulator experimental performance test is used to develop a systematic calibration procedure for a computer model of a thermosyphoning, solar domestic hot water heating system with a tank-in-tank heat exchanger. Calibration is performed using an indoor test with a simulated solar collector to adjust heat transfer in the heat exchanger and heat transfer between adjacent layers of water in the storage tank. An outdoor test is used to calibrate the calculation of the friction drop in the closed collector loop. Additional indoor data with forced flow in the annulus of the heat exchanger leads to improved heat transfer correlations for the inside and outside regions of the tank-in-tank heat exchanger. The calibrated simulation model is compared to several additional outdoor tests both with and without auxiliary heating. Integrated draw energies are predicted with greater accuracy and draw temperature profiles match experimental results to a better degree. Auxiliary energy input predictions improve significantly. 63 figs., 29 tabs.

Swift, T.N.

1996-09-01T23:59:59.000Z

139

Numerical study of hot-leg ECC injection into the upper plenum of a pressurized water reactor  

SciTech Connect (OSTI)

In certain pressurized water reactor (PWR) designs, emergency core coolant (ECC) is injected through the hot legs into the upper plenum. The condensation of steam on this subcooled liquid stream reduces the pressure in the hot legs and upper plenum and thereby affects flow conditions throughout the reactor. In the present study, we examine countercurrent steam-water flow in the hot leg to determine the deceleration of the ECC flow that results from an adverse pressure gradient and from momentum exchange from the steam by interfacial drag and condensation. For the parameters examined in the study, water flow reversal is observed for a pressure drop of 22 to 32 mBar over the 1.5 m hot leg. We have also performed a three-dimensional study of subcooled water injection into air and steam environments of the upper plenum. The ECC water is deflected by an array of cylindrical guide tubes in its passage through the upper plenum. Comparisons of the air-water results with data obtained in a full scale experiment shows reasonable agreement, but indicates that there may be too much resistance to horizontal flow about the columns because of the use of a stair-step representation of the cylindrical guide tube cross section. Calculations of flow past single columns of stair-step, square and circular cross section do indicate excessive water deeentrainment by the noncircular column. This has prompted the use of an arbitrary mesh computational procedure to more accuratey represent the circular cross-section guide tubes. 15 figures.

Daly, B.J.; Torrey, M.D.; Rivard, W.C.

1981-01-01T23:59:59.000Z

140

Our Environment in Hot Water: Comparing Water Heaters, A Life Cycle Approach Comparing Tank and Tankless Water Heaters in California  

E-Print Network [OSTI]

consumer/your_home/water_ heating/index.cfm/mytopic=12980heating is a large source of energy use in California homes.heating is the third largest source of energy use in homes [

Lu, Alison

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrothermal hot water" 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

HOT WATER IN THE INNER 100 AU OF THE CLASS 0 PROTOSTAR NGC 1333 IRAS2A  

SciTech Connect (OSTI)

Evaporation of water ice above 100 K in the inner few 100 AU of low-mass embedded protostars (the so-called hot core) should produce quiescent water vapor abundances of {approx}10{sup -4} relative to H{sub 2}. Observational evidence so far points at abundances of only a few 10{sup -6}. However, these values are based on spherical models, which are known from interferometric studies to be inaccurate on the relevant spatial scales. Are hot cores really that much drier than expected, or are the low abundances an artifact of the inaccurate physical models? We present deep velocity-resolved Herschel-HIFI spectra of the 3{sub 12}-3{sub 03} lines of H{sub 2}{sup 16}O and H{sub 2}{sup 18}O (1097 GHz, E{sub u}/k = 249 K) in the low-mass Class 0 protostar NGC 1333 IRAS2A. A spherical radiative transfer model with a power-law density profile is unable to reproduce both the HIFI data and existing interferometric data on the H{sub 2}{sup 18}O 3{sub 13}-2{sub 20} line (203 GHz, E{sub u}/k = 204 K). Instead, the HIFI spectra likely show optically thick emission from a hot core with a radius of about 100 AU. The mass of the hot core is estimated from the C{sup 18}O J = 9-8 and 10-9 lines. We derive a lower limit to the hot water abundance of 2 Multiplication-Sign 10{sup -5}, consistent with the theoretical predictions of {approx}10{sup -4}. The revised HDO/H{sub 2}O abundance ratio is 1 Multiplication-Sign 10{sup -3}, an order of magnitude lower than previously estimated.

Visser, Ruud; Bergin, Edwin A. [Department of Astronomy, University of Michigan, 500 Church Street, Ann Arbor, MI 48109-1042 (United States); Jorgensen, Jes K. [Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen O (Denmark); Kristensen, Lars E.; Van Dishoeck, Ewine F., E-mail: visserr@umich.edu [Leiden Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden (Netherlands)

2013-05-20T23:59:59.000Z

142

High temperature hot water distribution system study, Directorate of Public Works, Fort Drum, New York; executive summary. Final report  

SciTech Connect (OSTI)

The existing High Temperature Hot Water (HTHW) Distribution System has been plagued with design and construction deficiencies since startup of the HTHW system, in October 1988. In October 1989, after one year of service, these deficiencies were outlined in a technical evaluation. The deficiencies included flooded manholes, sump pumps not hooked up, leaking valves, contaminated HTHW water, and no cathodic protection system. This feasibility study of the High Temperature Hot Water (HTHW) Distribution System was performed under Contract No. DACA01-94-D-0033, Delivery Order 0013, Modification 1, issued to EMC Engineers, Inc. (EMC), by the Norfolk District Corps of Engineers, on 25 April 1996. The purpose of this study was to determine the existing conditions of the High Temperature Hot Water Distribution System, manholes, and areas of containment system degradation. The study focused on two areas of concern, as follows: (1) Determine existing conditions and areas of containment system degradation (leaks) in the underground carrier pipes and protective conduit. (2) Document the condition of underground steel and concrete manholes. To document the leaks, a site survey was performed, using state-of-the-art infrared leak detection equipment and tracer gas leak detection equipment. To document the condition of the manholes, color photographs were taken of the insides of 125 manholes, and notes were made on the condition of these manholes.

NONE

1996-12-01T23:59:59.000Z

143

Hydrothermal Liquefaction of Biomass  

SciTech Connect (OSTI)

Hydrothermal liquefaction technology is describes in its relationship to fast pyrolysis of biomass. The scope of work at PNNL is discussed and some intial results are presented. HydroThermal Liquefaction (HTL), called high-pressure liquefaction in earlier years, is an alternative process for conversion of biomass into liquid products. Some experts consider it to be pyrolysis in solvent phase. It is typically performed at about 350 C and 200 atm pressure such that the water carrier for biomass slurry is maintained in a liquid phase, i.e. below super-critical conditions. In some applications catalysts and/or reducing gases have been added to the system with the expectation of producing higher yields of higher quality products. Slurry agents ('carriers') evaluated have included water, various hydrocarbon oils and recycled bio-oil. High-pressure pumping of biomass slurry has been a major limitation in the process development. Process research in this field faded away in the 1990s except for the HydroThermal Upgrading (HTU) effort in the Netherlands, but has new resurgence with other renewable fuels in light of the increased oil prices and climate change concerns. Research restarted at Pacific Northwest National Laboratory (PNNL) in 2007 with a project, 'HydroThermal Liquefaction of Agricultural and Biorefinery Residues' with partners Archer-Daniels-Midland Company and ConocoPhillips. Through bench-scale experimentation in a continuous-flow system this project investigated the bio-oil yield and quality that could be achieved from a range of biomass feedstocks and derivatives. The project was completed earlier this year with the issuance of the final report. HydroThermal Liquefaction research continues within the National Advanced Biofuels Consortium with the effort focused at PNNL. The bench-scale reactor is being used for conversion of lignocellulosic biomass including pine forest residue and corn stover. A complementary project is an international collaboration with Canada to investigate kelp (seaweed) as a biomass feedstock. The collaborative project includes process testing of the kelp in HydroThermal Liquefaction in the bench-scale unit at PNNL. HydroThermal Liquefaction at PNNL is performed in the hydrothermal processing bench-scale reactor system. Slurries of biomass are prepared in the laboratory from whole ground biomass materials. Both wet processing and dry processing mills can be used, but the wet milling to final slurry is accomplished in a stirred ball mill filled with angle-cut stainless steel shot. The PNNL HTL system, as shown in the figure, is a continuous-flow system including a 1-litre stirred tank preheater/reactor, which can be connected to a 1-litre tubular reactor. The product is filtered at high-pressure to remove mineral precipitate before it is collected in the two high-pressure collectors, which allow the liquid products to be collected batchwise and recovered alternately from the process flow. The filter can be intermittently back-flushed as needed during the run to maintain operation. By-product gas is vented out the wet test meter for volume measurement and samples are collected for gas chromatography compositional analysis. The bio-oil product is analyzed for elemental content in order to calculate mass and elemental balances around the experiments. Detailed chemical analysis is performed by gas chromatography-mass spectrometry and 13-C nuclear magnetic resonance is used to evaluate functional group types in the bio-oil. Sufficient product is produced to allow subsequent catalytic hydroprocessing to produce liquid hydrocarbon fuels. The product bio-oil from hydrothermal liquefaction is typically a more viscous product compared to fast pyrolysis bio-oil. There are several reasons for this difference. The HTL bio-oil contains a lower level of oxygen because of more extensive secondary reaction of the pyrolysis products. There are less amounts of the many light oxygenates derived from the carbohydrate structures as they have been further reacted to phenolic Aldol condensation products. The bio-oil

Elliott, Douglas C.

2010-12-10T23:59:59.000Z

144

Solar process heat technology in action: The process hot water system at the California Correctional Institution at Tehachapi  

SciTech Connect (OSTI)

Solar process heat technology relates to solar thermal energy systems for industry, commerce, and government. Applications include water preheating and heating, steam generation, process hot air, ventilation air heating, and refrigeration. Solar process heat systems are available for commercial use. At the present time, however, they are economically viable only in niche markets. This paper describes a functioning system in one such market. The California Department of Corrections (CDOC), which operates correctional facilities for the state of California, uses a solar system for providing hot water and space heating at the California Correctional Institute at Tehachapi (CCI/Tehachapi). CCI/Tehachapi is a 5100-inmate facility. The CDOC does not own the solar system. Rather, it buys energy from private investors who own the solar system located on CCI/Tehachapi property; this arrangement is part of a long-term energy purchase agreement. United Solar Technologies (UST) of Olympia Washington is the system operator. The solar system, which began operating in the fall of 1990, utilizes 2677 m{sup 2} (28,800 ft{sup 2}) of parabolic through solar concentrators. Thermal energy collected by the system is used to generate hot water for showers, kitchen operations, and laundry functions. Thermal energy collected by the system is also used for space heating. At peak operating conditions, the system is designed to meet approximately 80 percent of the summer thermal load. 4 figs., 4 tabs.

Hewett, R. (National Renewable Energy Lab., Golden, CO (United States)); Gee, R.; May, K. (Industrial Solar Technology, Arvada, CO (United States))

1991-12-01T23:59:59.000Z

145

Solar heating and domestic hot water system installed at Kansas City, Fire Station, Kansas City, Missouri. Final report  

SciTech Connect (OSTI)

This document is the final report of the solar energy heating and hot water system installed at the Kansas City Fire Station, Number 24, 2309 Hardesty Street, Kansas City, Missouri. The solar system was designed to provide 47 percent of the space heating, 8800 square feet area and 75 percent of the domestic hot water (DHW) load. The solar system consists of 2808 square feet of Solaron, model 2001, air, flat plate collector subsystem, a concrete box storage subsystem which contains 1428 cubic feet of 1/2 inch diameter pebbles weighing 71 1/2 tons, a DHW preheat tank, blowers, pumps, heat exchangers, air ducting, controls and associated plumbing. Two 120-gallon electric DHW heaters supply domestic hot water which is preheated by the solar system. Auxiliary space heating is provided by three electric heat pumps with electric resistance heaters and four 30-kilowatt electric unit heaters. There are six modes of system operation. This project is part of the Department of Energy PON-1 Solar Demonstration Program with DOE cost sharing $154,282 of the $174,372 solar system cost. The Final Design Review was held March 1977, the system became operational March 1979 and acceptance test was completed in September 1979.

None

1980-07-01T23:59:59.000Z

146

Report on the analysis of field data relating to the reliability of solar hot water systems.  

SciTech Connect (OSTI)

Utilities are overseeing the installations of thousand of solar hot water (SHW) systems. Utility planners have begun to ask for quantitative measures of the expected lifetimes of these systems so that they can properly forecast their loads. This report, which augments a 2009 reliability analysis effort by Sandia National Laboratories (SNL), addresses this need. Additional reliability data have been collected, added to the existing database, and analyzed. The results are presented. Additionally, formal reliability theory is described, including the bathtub curve, which is the most common model to characterize the lifetime reliability character of systems, and for predicting failures in the field. Reliability theory is used to assess the SNL reliability database. This assessment shows that the database is heavily weighted with data that describe the reliability of SHW systems early in their lives, during the warranty period. But it contains few measured data to describe the ends of SHW systems lives. End-of-life data are the most critical ones to define sufficiently the reliability of SHW systems in order to answer the questions that the utilities pose. Several ideas are presented for collecting the required data, including photometric analysis of aerial photographs of installed collectors, statistical and neural network analysis of energy bills from solar homes, and the development of simple algorithms to allow conventional SHW controllers to announce system failures and record the details of the event, similar to how aircraft black box recorders perform. Some information is also presented about public expectations for the longevity of a SHW system, information that is useful in developing reliability goals.

Menicucci, David F. (Building Specialists, Inc., Albuquerque, NM)

2011-07-01T23:59:59.000Z

147

Water and Energy Wasted During Residential Shower Events: Findings from a Pilot Field Study of Hot Water Distribution Systems  

E-Print Network [OSTI]

of Natural Gas Tankless Water Heaters. Center for Energy andhot water from the water heater to each end-use locationMixed Temperature Water Water Heater Drain Indoor Boundary

Lutz, Jim

2012-01-01T23:59:59.000Z

148

Water as a Reagent for Soil Remediation  

SciTech Connect (OSTI)

SRI International conducted experiments in a two-year, two-phase process to develop and evaluate hydrothermal extraction technology, also known as hot water extraction (HWE) technology, for remediating petroleum-contaminated soils. The bench-scale demonstration of the process has shown great promise, and the implementation of this technology will revolutionize the conventional use of water in soil remediation technologies and provide a standalone technology for removal of both volatile and heavy components from contaminated soil.

Jayaweera, Indira S.; Marti-Perez, Montserrat; Diaz-Ferrero, Jordi; Sanjurjo, Angel

2003-03-06T23:59:59.000Z

149

Hot Water Draw Patterns in Single-Family Houses: Findings from Field Studies  

E-Print Network [OSTI]

Two Demand Electric Water Heaters for Northeast Utilities.Two Demand Electric Water Heaters for Northeast Utilities.Johnson. Heat Pump Water Heater Field Test: 30 Crispaire

Lutz, Jim

2012-01-01T23:59:59.000Z

150

Hot Water Draw Patterns in Single-Family Houses: Findings from Field Studies  

E-Print Network [OSTI]

gas or electric storage water heaters. The studys goal washouses used a storage water heater. Without includinghouseholds which have storage water heaters, although this

Lutz, Jim

2012-01-01T23:59:59.000Z

151

Dealing with big circulation flow, small temperature difference based on verified dynamic model simulations of a hot water district heating system  

E-Print Network [OSTI]

DEALING WITH BIG CIRCULATION FLOW RATE, SMALL TEMPERATURE DIFFERENCE BASED ON VERIFIED DYNAMIC MODEL SIMULATIONS OF A HOT WATER DISTRICT HEATING SYSTEM Li Lian Zhong, Senior Sales Consultant, Danfoss Automatic Controls Management (Shanghai...) Co.,Ltd, Anshan, China ABSTRACT Dynamic models of an indirect hot water district heating system were developed based on the first principle of thermodynamics. The ideal model was verified by using measured operational data. The ideal...

Zhong, L.

2014-01-01T23:59:59.000Z

152

Hot Water Draw Patterns in Single-Family Houses: Findings from Field Studies  

E-Print Network [OSTI]

and R.K. Johnson. Heat Pump Water Heater Field Test: 30a Market-Optimized Heat- Pump Water Heater. Prepared by TIAXcost savings of heat pump water heaters Field test of

Lutz, Jim

2012-01-01T23:59:59.000Z

153

Pilot Phase of a Field Study to Determine Waste of Water and Energy in Residential Hot-Water Distribution Systems  

E-Print Network [OSTI]

understanding the waste of energy and water in residentialStudy to Determine Waste of Water and Energy in ResidentialStudy to Determine Waste of Water and Energy in Residential

Lutz, Jim

2012-01-01T23:59:59.000Z

154

Patterns in Global Hydrothermal  

E-Print Network [OSTI]

Patterns in Global Hydrothermal Activity noaa ocean exploration Presenter: Edward T. Baker #12) High-T vents High = hydrothermal discharge Low = active or inactive discharge sites B. Davy, GNS NZ #12 Lc(km) #12;Future Directions Quantify processes: ·Employ or develop new technologies (AUVs, solid

155

Automated Planning for Hydrothermal Vent Prospecting Using AUVs  

E-Print Network [OSTI]

Automated Planning for Hydrothermal Vent Prospecting Using AUVs Zeyn A Saigol A thesis submitted of searching the ocean floor for hydrothermal vents, using autonomous under- water vehicles (AUVs decision process (POMDP), but with a very large state space (of the order of 10123 states). This size

Yao, Xin

156

In-situ parameter estimation for solar domestic hot water heating systems components. Final report, June 1995--May 1996  

SciTech Connect (OSTI)

Three different solar domestic hot water systems are being tested at the Colorado State University Solar Energy Applications Laboratory; an unpressurized drain-back system with a load side heat exchanger, an integral collector storage system, and an ultra low flow natural convection heat exchanger system. The systems are fully instrumented to yield data appropriate for in-depth analyses of performance. The level of detail allows the observation of the performance of the total system and the performance of the individual components. This report evaluates the systems based on in-situ experimental data and compares the performances with simulated performances. The verification of the simulations aids in the rating procedure. The whole system performance measurements are also used to analyze the performance of individual components of a solar hot water system and to develop improved component models. The data are analyzed extensively and the parameters needed to characterize the systems fully are developed. Also resulting from this indepth analysis are suggested design improvements wither to the systems or the system components.

Smith, T.R.

1997-03-01T23:59:59.000Z

157

INSTALLATION CERTIFICATE CF-6R-MECH-01 Domestic Hot Water (DHW) (Page 1 of 2)  

E-Print Network [OSTI]

,000 Btu/hr), electric resistance and heat pump water heaters, list Energy Factor (EF). For large gas storage water heaters (rated input of greater than 75,000 Btu/hr), list Recovery Efficiency (RE), Thermal Efficiency, Standby Loss and Rated Input. For instantaneous gas water heaters, list the Thermal Efficiency

158

Limited Energy Engineering Analysis (EEAP) study of summer boiler at high temperature hot water plants, Fort Leonard Wood, Missouri. Final report  

SciTech Connect (OSTI)

This report is a study of the existing High Temperature Hot Water Distribution Systems at Fort Leonard Wood, Missouri. There are two systems with central boilers located in Buildings 1021 and 2369. The study focuses on the operation of the boilers during the summer months which is required to provide domestic hot water and sanitizing steam to various buildings. Because the boilers are operating under a reduced load condition, it may be cost effective in terms of energy conservation to implement one of the following energy conservation opportunities (ECO`s).

NONE

1993-09-02T23:59:59.000Z

159

Supercritical fluid extraction of bitumen free solids separated from Athabasca oil sand feed and hot water process tailings pond sludge  

SciTech Connect (OSTI)

The presence of strongly bound organic matter (SOM), in association with certain solids fractions, causes serious problems in the processability of Athabasca oil sands as well as in the settling and compaction of hot water process tailing pond sludge. It has been demonstrated that a substantial amount of this SOM can be separated from oil sands feed and sludge solids, after removal of bitumen by toluene, using a supercritical fluid extraction (SFE) method. The extracted material is soluble in common organic solvents which allows a direct comparison, between the SOM separated from oil sands and sludges, from the point of view of both gross analysis of the major compound types and detailed analysis of chemical structures.

Kotlyar, L.S.; Sparks, B.D.; Woods, J.R.; Ripmeester, J.A. (National Research Council of Canada, Ottawa, ON (Canada). Div. of Chemistry)

1990-01-01T23:59:59.000Z

160

Performance Evaluation of Hot Water Efficiency Plumbing System Using Thermal Valve  

E-Print Network [OSTI]

In Korea two popular water distribution systemsthe branch type and the separate type systemshave serious drawbacks. The branch type suffers from temperature instability while the separate type suffers from excessive piping. Neither of them re...

Cha, K. S.; Park, M. S.; Seo, H. Y.

Note: This page contains sample records for the topic "hydrothermal hot water" 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

An Analysis Method for Operations of Hot Water Heaters by Artificial Neural Networks  

E-Print Network [OSTI]

Authors tried to apply an Artificial Neural Network (ANN) to estimation of state of building systems. The systems used in this study were gas combustion water heaters. Empirical equations to estimate gas consumption from measureble properies...

Yamaha, M.; Takahashi, M.

2004-01-01T23:59:59.000Z

162

Pilot plant studies for a new hot water process for extraction of bitumen from Utah tar sands  

SciTech Connect (OSTI)

A process development pilot plant for extracting bitumen from tar sands under arid conditions are described. The hot water recovery process under development is required to maximize heat and water recovery, recover more than 90% of the bitumen, minimize the operating cost, and eliminate the use of a tailings pond by increasing the effectiveness of solids separation and dewatering. Technical aspects of process flow conditions, the liquid cyclone separator under development, and testing to analyze the influence of flow rates, size distribution in discharge streams, amount of bitumen recovery from different streams, and air addition are summarized. Test results indicate that bitumen recovery should be at least 90%, water content from thickener underflow and dewater coarse solids averages about 30 weight percent moisture, and the forced vortex cyclone can produce an underflow solids concentration of 69 to 72 weight percent moisture. The proposed flow sheet is believed to be a very low-cost method for bitumen recovery. 5 refs., 3 figs., 2 tabs.

Dahlstrom, D.A.

1996-12-31T23:59:59.000Z

163

The BGU/CERN solar hydrothermal reactor  

E-Print Network [OSTI]

We describe a novel solar hydrothermal reactor (SHR) under development by Ben Gurion University (BGU) and the European Organization for Nuclear Research CERN. We describe in broad terms the several novel aspects of the device and, by extension, of the niche it occupies: in particular, enabling direct off-grid conversion of a range of organic feedstocks to sterile useable (solid, liquid) fuels, nutrients, products using only solar energy and water. We then provide a brief description of the high temperature high efficiency panels that provide process heat to the hydrothermal reactor, and review the basics of hydrothermal processes and conversion taking place in this. We conclude with a description of a simulation of the pilot system that will begin operation later this year.

Bertolucci, Sergio; Caspers, Fritz; Garb, Yaakov; Gross, Amit; Pauletta, Stefano

2014-01-01T23:59:59.000Z

164

Instrument Qualification of Custom Fabricated Water Activity Meter for Hot Cell Use  

SciTech Connect (OSTI)

This report describes a custom fabricated water activity meter and the results of the qualification of this meter as described in the laboratory test plan LAB-PLN-11-00012, Testing and Validation of an Enhanced Acquisition and Control System. It was calibrated against several NaOH solutions of varying concentrations to quantify the accuracy and precision of the instrument at 20 C and 60 C. Also, a schematic and parts list of the equipment used to make the water activity meter will be presented in this report.

McCoskey, Jacob K.

2014-01-22T23:59:59.000Z

165

Solar heating, cooling, and domestic hot water system installed at Kaw Valley State Bank and Trust Company, Topeka, Kansas. Final report  

SciTech Connect (OSTI)

The building has approximately 5600 square feet of conditioned space. Solar energy is used for space heating, space cooling, and preheating domestic hot water (DHW). The solar energy system has an array of evacuated tube-type collectors with an area of 1068 square feet. A 50/50 solution of ethylene glycol and water is the transfer medium that delivers solar energy to a tube-in-shell heat exchanger that in turn delivers solar-heated water to a 1100 gallon pressurized hot water storage tank. When solar energy is insufficient to satisfy the space heating and/or cooling demand, a natural gas-fired boiler provides auxiliary energy to the fan coil loops and/or the absorption chillers. Extracts from the site files, specification references, drawings, and installation, operation and maintenance instructions are included.

None

1980-11-01T23:59:59.000Z

166

Water and Energy Wasted During Residential Shower Events: Findings from a Pilot Field Study of Hot Water Distribution Systems  

E-Print Network [OSTI]

v i i where, h = molar enthalpy, Btu/mol (J/mol), M = molarEnergy Used at Shower Water Heater average 5169 BTU ( 5.454MJ ) 4335 BTU ( 4.573 MJ ) 4151 BTU ( 4.379 MJ ) 4192 BTU (

Lutz, Jim

2012-01-01T23:59:59.000Z

167

Catalytic Hydrothermal Gasification of Biomass  

SciTech Connect (OSTI)

A recent development in biomass gasification is the use of a pressurized water processing environment in order that drying of the biomass can be avoided. This paper reviews the research undertaken developing this new option for biomass gasification. This review does not cover wet oxidation or near-atmospheric-pressure steam-gasification of biomass. Laboratory research on hydrothermal gasification of biomass focusing on the use of catalysts is reviewed here, and a companion review focuses on non-catalytic processing. Research includes liquid-phase, sub-critical processing as well as super-critical water processing. The use of heterogeneous catalysts in such a system allows effective operation at lower temperatures, and the issues around the use of catalysts are presented. This review attempts to show the potential of this new processing concept by comparing the various options under development and the results of the research.

Elliott, Douglas C.

2008-05-06T23:59:59.000Z

168

Comparative assessment of five potential sites for hydrothermal magma systems: geochemistry  

SciTech Connect (OSTI)

A brief discussion is given of the geochemical objectives and questions that must be addressed in such an evaluation. A summary of the currently published literature that is pertinent in answering these questions is presented for each of the five areas: The Geysers-Clear Lake region, Long Valley, Rio Grand Rift, Roosevelt Hot Springs, and the Salton Trough. The major geochemical processes associated with proposed hydrothermal sites are categorized into three groups for presentation: geochemistry of magma and associated volcanic rocks, geochemistry of hydrothermal solutions, and geochemistry of hydrothermal alteration. (MHR)

White, A.F.

1980-08-01T23:59:59.000Z

169

High resolution FT-ICR mass spectral analysis of bio-oil and residual water soluble organics produced by hydrothermal liquefaction of the marine microalga Nannochloropsis salina  

SciTech Connect (OSTI)

We report a detailed compositional characterization of a bio-crude oil and aqueous by-product from hydrothermal liquefaction of Nannochloropsis salina by direct infusion Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FT-ICR MS) in both positive- and negative-ionization modes. The FT-ICR MS instrumentation approach facilitates direct assignment of elemental composition to >7000 resolved mass spectral peaks and three-dimensional mass spectral images for individual heteroatom classes highlight compositional diversity of the two samples and provide a baseline description of these materials. Aromatic nitrogen compounds and free fatty acids are predominant species observed in both the bio-oil and aqueous fraction. Residual organic compounds present in the aqueous fraction show distributions that are slightly lower in both molecular ring and/or double bond value and carbon number relative to those found in the bio-oil, albeit with a high degree of commonality between the two compositions.

Sudasinghe, Nilusha; Dungan, Barry; Lammers, Peter; Albrecht, Karl O.; Elliott, Douglas C.; Hallen, Richard T.; Schaub, Tanner

2014-03-01T23:59:59.000Z

170

Development and testing of a photometric method to identify non-operating solar hot water systems in field settings.  

SciTech Connect (OSTI)

This report presents the results of experimental tests of a concept for using infrared (IR) photos to identify non-operational systems based on their glazing temperatures; operating systems have lower glazing temperatures than those in stagnation. In recent years thousands of new solar hot water (SHW) systems have been installed in some utility districts. As these numbers increase, concern is growing about the systems dependability because installation rebates are often based on the assumption that all of the SHW systems will perform flawlessly for a 20-year period. If SHW systems routinely fail prematurely, then the utilities will have overpaid for grid-energy reduction performance that is unrealized. Moreover, utilities are responsible for replacing energy for loads that failed SHW system were supplying. Thus, utilities are seeking data to quantify the reliability of SHW systems. The work described herein is intended to help meet this need. The details of the experiment are presented, including a description of the SHW collectors that were examined, the testbed that was used to control the system and record data, the IR camera that was employed, and the conditions in which testing was completed. The details of the associated analysis are presented, including direct examination of the video records of operational and stagnant collectors, as well as the development of a model to predict glazing temperatures and an analysis of temporal intermittency of the images, both of which are critical to properly adjusting the IR camera for optimal performance. Many IR images and a video are presented to show the contrast between operating and stagnant collectors. The major conclusion is that the technique has potential to be applied by using an aircraft fitted with an IR camera that can fly over an area with installed SHW systems, thus recording the images. Subsequent analysis of the images can determine the operational condition of the fielded collectors. Specific recommendations are presented relative to the application of the technique, including ways to mitigate and manage potential sources of error.

He, Hongbo (University of New Mexico, Albuquerque, NM); Vorobieff, Peter V. (University of New Mexico, Albuquerque, NM); Menicucci, David (University of New Mexico, Albuquerque, NM); Mammoli, Andrea A. (University of New Mexico, Albuquerque, NM); Carlson, Jeffrey J.

2012-06-01T23:59:59.000Z

171

Engineering and economic evaluation of direct hot-water geothermal energy applications on the University of New Mexico campus. Final technical report  

SciTech Connect (OSTI)

The potential engineering and economic feasibility of low-temperature geothermal energy applications on the campus of the University of New Mexico is studied in detail. This report includes three phases of work: data acquisition and evaluation, system synthesis, and system refinement and implementation. Detailed process designs are presented for a system using 190/sup 0/F geothermal water to substitute for the use of 135 x 10/sup 9/ Btu/y (141 TJ/y) of fossil fuels to provide space and domestic hot water heating for approximately 23% of the campus. Specific areas covered in the report include economic evaluation, environmental impact and program implementation plans.

Kauffman, D.; Houghton, A.V.

1980-12-31T23:59:59.000Z

172

Hydrothermal system in Southern Grass Valley, Pershing County, Nevada  

SciTech Connect (OSTI)

Southern Grass Valley is a fairly typical extensional basin in the Basin and Range province. Leach Hot Springs, in the southern part of the valley, represents the discharge end of an active hydrothermal flow system with an estimated deep aquifer temperature of 163 to 176/sup 0/C. Results of geologic, hydrologic, geophysical and geochemical investigations are discussed in an attempt to construct an internally consistent model of the system.

Welch, A.H.; Sorey, M.L.; Olmsted, F.H.

1981-01-01T23:59:59.000Z

173

Iridium material for hydrothermal oxidation environments  

DOE Patents [OSTI]

A process for hydrothermal oxidation of combustible materials in which, during at least a part of the oxidation, corrosive material is present and makes contact with at least a portion of the apparatus over a contact area on the apparatus. At least a portion of the contact surface area comprises iridium, iridium oxide, an iridium alloy, or a base metal overlaid with an iridium coating. Iridium has been found to be highly resistant to environments encountered in the process of hydrothermal oxidation. Such environments typically contain greater than 50 mole percent water, together with oxygen, carbon dioxide, and a wide range of acids, bases and salts. Pressures are typically about 27.5 to about 1000 bar while temperatures range as high as 800.degree. C.

Hong, Glenn T. (Tewksbury, MA); Zilberstein, Vladimir A. (Brookline, MA)

1996-01-01T23:59:59.000Z

174

A facile hydrothermal route to the large-scale synthesis of CoWO4 nanorods Liang Zhen a,, Wen-Shou Wang a  

E-Print Network [OSTI]

fabrication [8,9]. Many recent studies have demonstrated that hydrothermal process is an effectiveA facile hydrothermal route to the large-scale synthesis of CoWO4 nanorods Liang Zhen a,, Wen by a hydrothermal method using only CoCl2 and Na2WO4 as reaction reagents and distilled water as solvents

Qin, Lu-Chang

175

Task 15 -- Remediation of organically contaminated soil using hot/liquid (subcritical) water. Semi-annual report, April 1--September 30, 1997  

SciTech Connect (OSTI)

This activity involves a pilot-scale demonstration of the use of hot/liquid water for the removal of organic contaminants from soil at the pilot (20 to 40 kg) scale. Lab-scale studies are being performed to determine the optimum temperature, contact time, and flow rates for removal of the organic contaminants. Initial investigations into using carbon sorbents to clean the extractant water for recycle use and to concentrate the extracted contaminants in a small volume for disposal are also being performed. Liquid water is normally considered to be too polar a solvent to be effective for removal of organic contaminants from contaminated soils and sludges. However, the Energy and Environmental Research Center (EERC) has demonstrated that the polarity of liquid water can be changed from that of a very polar solvent at ambient conditions to that of an organic solvent (e.g., ethanol or acetonitrile) by simply raising the temperature. The EERC has exploited this unique property of liquid water to obtain highly selective extractions of polar (at lower temperatures) to nonpolar (at 200 to 250 C) organics from contaminated soils and sludges. Only moderate pressures (a maximum of about 45 atm at 250 C and lower pressures at lower temperatures) are required. With this procedure, all detectable hazardous organics were removed from the sludge, thus making the remaining material (about 99% of the original mass) a nonhazardous material. The present understanding of hot/liquid water extraction for the removal of hazardous organics from contaminated soils and sludges is being used to develop the engineering parameters needed to perform a pilot-scale demonstration of the remediation technology. Progress during the report period is summarized.

Hawthorne, S.B.

1997-12-31T23:59:59.000Z

176

Hydrothermal Systems Rock Deformation and Geodynamics  

E-Print Network [OSTI]

Update Seminar Process Modelling of Hydrothermal Systems using SHEMAT / Processing SHEMAT 20 - 22 August to develop a process understanding of reactive transport in hydrothermal systems and to make responsible.rwth-academy.com/geophysics.html With contributions from #12;Process Modelling of Hydrothermal Systems using SHEMAT / Processing SHEMAT Hydrothermal

177

Hydrothermal Processing of Wet Wastes  

Broader source: Energy.gov [DOE]

Breakout Session 3AConversion Technologies III: Energy from Our WasteWill we Be Rich in Fuel or Knee Deep in Trash by 2025? Hydrothermal Processing of Wet Wastes James R. Oyler, President, Genifuel Corporation

178

INTEGRATED CO2 HEAT PUMP SYSTEMS FOR SPACE HEATING AND HOT WATER HEATING IN LOW-ENERGY HOUSES AND  

E-Print Network [OSTI]

designed as stand-alone systems, i.e. a heat pump water heater (HPWH) in combination with separate units

J. Stene

179

Hydrothermal Exploration at Pilgrim Hot Springs, Alaska | Department of  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists'Montana.ProgramJulietip sheetK-4In 2013DepartmentAgenda forThisEnergy Lower

180

1 CO2 Heat Pump System for Space Heating and Hot Water Heating in Low-Energy Houses and Passive  

E-Print Network [OSTI]

designed as a stand-alone system, i.e. a heat pump water heater in combination with a separate unit for

J. Stene

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrothermal hot water" 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

Hydrothermal Processing of Macroalgal Feedstocks in Continuous-Flow Reactors  

SciTech Connect (OSTI)

Wet macroalgal slurries can be converted into a biocrude by hydrothermal liquefaction (HTL). High levels of carbon conversion to gravity-separable oil product were accomplished at relatively low temperature (350 ?C) in a pressurized (sub-critical liquid water) environment (20 MPa). As opposed to earlier work in batch reactors reported by others, direct oil recovery was achieved without the use of a solvent and biomass trace mineral components were removed by processing steps so that they did not cause processing difficulties. In addition, catalytic hydrothermal gasification was effectively applied for HTL byproduct water cleanup and fuel gas production from water soluble organics. As a result, high conversion of macroalgae to liquid and gas fuel products was found with low levels of organic contamination in byproduct water. Both process steps were accomplished in continuous-flow reactor systems such that design data for process scale-up was generated.

Elliott, Douglas C.; Hart, Todd R.; Neuenschwander, Gary G.; Rotness, Leslie J.; Roesijadi, Guritno; Zacher, Alan H.; Magnuson, Jon K.

2014-02-18T23:59:59.000Z

182

Use of a submersible viscometer in the primary separation step of the hot water process for recovery of bitumen from tar sand  

SciTech Connect (OSTI)

The patent describes the primary separation step of the hot water process for extracting bitumen from tar sand in primary separation vessel. The bitumen floats upwardly in a tar sand slurry to form a froth layer, the coarse solids drop to form a tailings layer, and a middlings layer is formed between the froth and the tailings. The improvement described here comprises: providing a submerged viscometer in the middlings layer and actuating the viscometer to measure the viscosity of the middlings at one or more levels in the vertical column of middlings and produce signals, external of the vessel, which are indicative of the measurements; taking sufficient measurements to determine the viscosity of the region of maximum viscosity within the middlings layer and adjusting the viscosity of the middlings in response to the signals to maintain the maximum viscosity in the column below a predetermined value, whereby the flotation of the bitumen through the middlings layer to the froth layer is substantially enhanced.

Schramm, L.L.

1987-01-20T23:59:59.000Z

183

Case Study of Stratified Chilled Water Storage Utilization for Comfort and Process Cooling in a Hot, Humid Climate  

E-Print Network [OSTI]

of the system and its operation is followed by presentation of operating data taken during 1997. INTRODUCTION Chilled water thermal energy storage ('TES) in naturally stratified tanks has been shown to be a valuable central cooling plant load management... and humid environment and presents new data on the performance of a large stratified chilled water storage tank. Figure 1. Plant Schematic. SITE The case study site is the Dallas, TX world headquarters of a major semiconductor manufacturer. The 6...

Bahnfleth, W. P.; Musser, A.

1998-01-01T23:59:59.000Z

184

Hot air drum evaporator  

DOE Patents [OSTI]

An evaporation system for aqueous radioactive waste uses standard 30 and 55 gallon drums. Waste solutions form cascading water sprays as they pass over a number of trays arranged in a vertical stack within a drum. Hot dry air is circulated radially of the drum through the water sprays thereby removing water vapor. The system is encased in concrete to prevent exposure to radioactivity. The use of standard 30 and 55 gallon drums permits an inexpensive compact modular design that is readily disposable, thus eliminating maintenance and radiation build-up problems encountered with conventional evaporation systems.

Black, Roger L. (Idaho Falls, ID)

1981-01-01T23:59:59.000Z

185

Hot Canyon  

ScienceCinema (OSTI)

This historical film footage, originally produced in the early 1950s as part of a series by WOI-TV, shows atomic research at Ames Laboratory. The work was conducted in a special area of the Laboratory known as the "Hot Canyon."

None

2013-03-01T23:59:59.000Z

186

Sulfur gas geochemical detection of hydrothermal systems. Final report  

SciTech Connect (OSTI)

The purpose of this investigation was to determine whether a system of exploration using sulfur gases was capable of detecting convecting hydrothermal systems. Three surveying techniques were used at the Roosevelt Hot Springs KGRA in Utah. These were (a) a sniffing technique, capable of instantaneous determinations of sulfur gas concentration, (b) an accumulator technique, capable of integrating the sulfur gas emanations over a 30 day interval, and (c) a method of analyzing the soils for vaporous sulfur compounds. Because of limitations in the sniffer technique, only a limited amount of surveying was done with this method. The accumulator and soil sampling techniques were conducted on a 1000 foot grid at Roosevelt Hot Springs, and each sample site was visited three times during the spring of 1980. Thus, three soil samples and two accumulator samples were collected at each site. The results are shown as averages of three soil and two accumulator determinations of sulfur gas concentrations at each site. Soil surveys and accumulator surveys were conducted at two additional KGRA's which were chosen based on the state of knowledge of these hydrothermal systems and upon their differences from Roosevelt Hot Springs in an effort to show that the exploration methods would be effective in detecting geothermal reservoirs in general. The results at Roosevelt Hot Springs, Utah show that each of the three surveying methods was capable of detecting sulfur gas anomalies which can be interpreted to be related to the source at depth, based on resistivity mapping of that source, and also correlatable with major structural features of the area which are thought to be controlling the geometry of the geothermal reservoir. The results of the surveys at Roosevelt did not indicate that either the soil sampling technique or the accumulator technique was superior to the other.

Rouse, G.E.

1984-01-01T23:59:59.000Z

187

X-ray Diffraction and Molecular Dynamics Study of Medium-range Order in Ambient and Hot Water  

E-Print Network [OSTI]

We have developed x-ray diffraction measurements with high energy-resolution and accuracy to study water structure at three different temperatures (7, 25 and 66 C) under normal pressure. Using a spherically curved Ge crystal an energy resolution better than 15 eV has been achieved which eliminates influence from Compton scattering. The high quality of the data allows a precise oxygen-oxygen pair correlation function (PCF) to be directly derived from the Fourier transform of the experimental data resolving shell structure out to ~12 {\\AA}, i.e. 5 hydration shells. Large-scale molecular dynamics (MD) simulations using the TIP4P/2005 force-field reproduce excellently the experimental shell-structure in the range 4-12 {\\AA} although less agreement is seen for the first peak in the PCF. The Local Structure Index [J. Chem. Phys. 104, 7671 (1996)] identifies a tetrahedral minority giving the intermediate-range oscillations in the PCF and a disordered majority providing a more featureless background in this range. The current study supports the proposal that the structure of liquid water, even at high temperatures, can be described in terms of a two-state fluctuation model involving local structures related to the high-density and low-density forms of liquid water postulated in the liquid-liquid phase transition hypothesis.

Congcong Huang; K. T. Wikfeldt; D. Nordlund; U. Bergmann; T. McQueen; J. Sellberg; L. G. M. Pettersson; A. Nilsson

2011-07-24T23:59:59.000Z

188

Present State of the Hydrothermal System in Long Valley Caldera...  

Open Energy Info (EERE)

Valley caldera to be delineated. The model consists of two principal zones in which hot water flows laterally from west to east at depths less than 1 km within and around the...

189

Seasonal abundance, distribution and growth of commercially important marine crustaceans at a hot water discharge in Galveston Bay, Texas  

E-Print Network [OSTI]

setiferus; and brown shrimp, Penaeus aztecus were taken once a month, January 1968-December 1969, at 11 offshore (trawl) and 6 beach (seine) stations. The collecting stations were in and around the entrance of the discharge canal carrying heated water... each month at offshore stations, 1968-1969. 28 Number of blue crabs seined each month at beach stations, 1968-1969 30 Number of white shrimp trawled each month at offshore stations, 1968-1969 43 Number of white shrimp seined each month at beach...

Gallaway, B. J

2012-06-07T23:59:59.000Z

190

Performance Evaluation of a 4.5 kW (1.3 Refrigeration Tons) Air-Cooled Lithium Bromide/Water Solar Powered (Hot-Water-Fired) Absorption Unit  

SciTech Connect (OSTI)

During the summer months, air-conditioning (cooling) is the single largest use of electricity in both residential and commercial buildings with the major impact on peak electric demand. Improved air-conditioning technology has by far the greatest potential impact on the electric industry compared to any other technology that uses electricity. Thermally activated absorption air-conditioning (absorption chillers) can provide overall peak load reduction and electric grid relief for summer peak demand. This innovative absorption technology is based on integrated rotating heat exchangers to enhance heat and mass transfer resulting in a potential reduction of size, cost, and weight of the "next generation" absorption units. Rotartica Absorption Chiller (RAC) is a 4.5 kW (1.3 refrigeration tons or RT) air-cooled lithium bromide (LiBr)/water unit powered by hot water generated using the solar energy and/or waste heat. Typically LiBr/water absorption chillers are water-cooled units which use a cooling tower to reject heat. Cooling towers require a large amount of space, increase start-up and maintenance costs. However, RAC is an air-cooled absorption chiller (no cooling tower). The purpose of this evaluation is to verify RAC performance by comparing the Coefficient of Performance (COP or ratio of cooling capacity to energy input) and the cooling capacity results with those of the manufacturer. The performance of the RAC was tested at Oak Ridge National Laboratory (ORNL) in a controlled environment at various hot and chilled water flow rates, air handler flow rates, and ambient temperatures. Temperature probes, mass flow meters, rotational speed measuring device, pressure transducers, and a web camera mounted inside the unit were used to monitor the RAC via a web control-based data acquisition system using Automated Logic Controller (ALC). Results showed a COP and cooling capacity of approximately 0.58 and 3.7 kW respectively at 35 C (95 F) design condition for ambient temperature with 40 C (104 F) cooling water temperature. This is in close agreement with the manufacturer data of 0.60 for COP and 3.9 kW for cooling capacity. This study resulted in a complete performance map of RAC which will be used to evaluate the potential benefits of rotating heat exchangers in making the "next-generation" absorption chillers more compact and cost effective without any significant degradation in the performance. In addition, the feasibility of using rotating heat exchangers in other applications will be evaluated.

Zaltash, Abdolreza [ORNL; Petrov, Andrei Y [ORNL; Linkous, Randall Lee [ORNL; Vineyard, Edward Allan [ORNL

2007-01-01T23:59:59.000Z

191

Treatment of primary tailings and middlings from the hot water extraction process for recovering bitumen from tar sand  

SciTech Connect (OSTI)

The primary tailings and middlings are combined and fed to a vessel having the general form of a deep cone thickener. The feed is deflected outwardly and generally horizontally by a baffle, as it is delivered to the vessel. Simultaneously, the outwardly radiating layer of newly added feed is contacted from below by an upwelling stream of aerated middlings, which stream moves in parallel with the aforesaid layer. Bitumen froth is formed and recovered. The upwelling stream is provided by circulating middlings through eductor/aerator assemblies and a plenum chamber mounted centrally in the body of middlings in the vessel. A generally circular circulation of middlings is generated. In this manner, the newly added bitumen is quickly and efficiently recovered. Recirculation of middlings to the aeration zone yields an additional recovery of bitumen. Use of the deep cone ensures that the tailings from the vessel are relatively low in water and bitumen content.

Cymbalisty, L. M. O.; Cymerman, J.

1995-10-08T23:59:59.000Z

192

Basement Structure and Implications for Hydrothermal Circulation...  

Open Energy Info (EERE)

collapse. Recent hydrothermal alteration occurs along Discovery fault strands and composite vertical offset of intracaldera volcanic units across the entire fault zone may be...

193

Structural Settings Of Hydrothermal Outflow- Fracture Permeability...  

Open Energy Info (EERE)

Settings Of Hydrothermal Outflow- Fracture Permeability Maintained By Fault Propagation And Interaction Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal...

194

Correlation of hydrothermal sericite composition with permeability...  

Open Energy Info (EERE)

by abundant fine-grained hydrothermal sericite that exhibits a systematic increase in K and Al and decrease in Si with increasing temperature. Calculated activities of the...

195

A Water Conservation Scenario for the Residential and Industrial Sectors in California: Potential Saveings of Water and Related Energy  

E-Print Network [OSTI]

in Residential Hot Water Heaters. Berkeley, CA: Lawrenceelectricity savings because gas hot water heaters are moreprevalent than electric water heaters in California. Bathing

Benenson, P.

2010-01-01T23:59:59.000Z

196

Possible Origin of Improved High Temperature Performance of Hydrotherm...  

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

Origin of Improved High Temperature Performance of Hydrothermally Aged CuBeta Zeolite Catalysts. Possible Origin of Improved High Temperature Performance of Hydrothermally Aged...

197

Relations Of Ammonium Minerals At Several Hydrothermal Systems...  

Open Energy Info (EERE)

Minerals At Several Hydrothermal Systems In The Western Us Abstract Ammonium bound to silicate and sulfate minerals has recently been located at several major hydrothermal systems...

198

Origin of platy calcite crystals in hot-spring deposits in the Kenya Rift Valley  

SciTech Connect (OSTI)

Platy calcite crystals, which have their c axis parallel to their shortest length axis, are common components of travertine deposits found around some hot springs in the Kenya Rift Valley. They are composite crystals formed of numerous paper-thin subcrystals. Individual plates allowed to grow without obstruction develop a hexagonal motif. The Kenyan crystals typically form in hot (>75 C) waters that have a low Ca content (<10 mg/l), a high CO{sub 2} content, and a high rate of CO{sub 2} degassing. At Chemurkeu, aggregates of numerous small platy crystals collectively form lattice crystals that superficially resemble ray crystals. The walls of the lattice crystals are formed of large platy crystals that have their long and intermediate length axes aligned parallel to the plane of the long axis of the lattice crystal. Internally, the lattice crystals are formed of small platy calcite crystals arranged in a boxlike pattern that creates the appearance of a lattice when viewed in thin section. Lattice crystals are highly porous, with each pore being enclosed by platy crystals. At Lorusio, travertines are mainly formed of pseudodentrites that are constructed by numerous small platy crystals attached to a main stem which is a large platy crystal that commonly curves along its long axis. The pseudodentrites are the main construction blocks in ledges and lilypads that form in the vent pool and spring outflow channels, where the water is too hot for microbes other than hyperthermophiles. The platy calcite crystals in the Kenyan travertines are morphologically similar to platy calcite crystals that form as scale in pipes in the geothermal fields of New Zealand and hydrothermal angel wing calcite from the La Fe mine in Mexico. Comparison of the Kenyan and New Zealand crystals indicates that platy calcite crystals form from waters with a low Ca{sup 2+} content and a high CO{sub 3}/Ca ratio due to rapid rates of CO{sub 2} degassing.

Jones, B. [Univ. of Alberta, Edmonton, Alberta (Canada). Dept. of Earth and Atmospheric Sciences; Renault, R.W. [Univ. of Saskatchewan, Saskatoon, Saskatchewan (Canada). Dept. of Geological Sciences

1998-09-01T23:59:59.000Z

199

Hot dry rock geothermal energy. Draft final report  

SciTech Connect (OSTI)

This second EPRI workshop on hot dry rock (HDR) geothermal energy, held in May 1994, focused on the status of worldwide HDR research and development and used that status review as the starting point for discussions of what could and should be done next: by U.S. federal government, by U.S. industry, by U.S. state governments, and by international organizations or through international agreements. The papers presented and the discussion that took place indicate that there is a community of researchers and industrial partners that could join forces, with government support, to begin a new effort on hot dry rock geothermal development. This new heat mining effort would start with site selection and confirmatory studies, done concurrently. The confirmatory studies would test past evaluations against the most current results (from the U.S. site at Fenton Hill, New Mexico, and from the two sites in Japan, the one in Russia, and the two in western Europe) and the best models of relevant physical and economic aspects. Site selection would be done in the light of the confirmatory studies and would be influenced by the need to find a site where success is probable and which is representative enough of other sites so that its success would imply good prospects for success at numerous other sites. The test of success would be circulation between a pair of wells, or more wells, in a way that confirmed, with the help of flow modeling, that a multi-well system would yield temperatures, flows and lifetimes that support economically feasible power generation. The flow modeling would have to have previously achieved its own confirmation from relevant data taken from both heat mining and conventional hydrothermal geothermal experience. There may be very relevant experience from the enhancement of ''hot wet rock'' sites, i.e., sites where hydrothermal reservoirs lack, or have come to lack, enough natural water or steam and are helped by water injected cold and produced hot. The new site would have to be selected in parallel with the confirmatory studies because it would have to be modeled as part of the studies and because its similarity to other candidate sites must be known well enough to assure that results at the selected site are relevant to many others. Also, the industry partners in the joint effort at the new site must be part of the confirmatory studies, because they must be convinced of the economic feasibility. This meeting may have brought together the core of people who can make such a joint effort take place. EPRI sponsored the organization of this meeting in order to provide utilities with an update on the prospects for power generation via heat mining. Although the emerging rules for electric utilities competing in power generation make it very unlikely that the rate-payers of any one utility (or small group of utilities) can pay the differential to support this new heat mining research and development effort, the community represented at this meeting may be able to make the case for national or international support of a new heat mining effort, based on the potential size and economics of this resource as a benefit for the nation as a whole and as a contribution to reduced emissions of fossil CO{sub 2} worldwide.

Not Available

1994-09-01T23:59:59.000Z

200

Selecting a New Water Heater You have a lot to consider when selecting a  

E-Print Network [OSTI]

the water heater's annual operation costs but also its size and energy efficiency. Natural gas, oil or tank water heater operates by releasing hot water from the top of the tank when the hot water tap is turned on. The hot water is released into the hot water line. As the hot water leaves the tank, cold

Note: This page contains sample records for the topic "hydrothermal hot water" 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

AUTOMATED PLANNING FOR HYDROTHERMAL VENT PROSPECTING USING  

E-Print Network [OSTI]

AUTOMATED PLANNING FOR HYDROTHERMAL VENT PROSPECTING USING AUVS by ZEYN A SAIGOL A thesis submitted of searching the ocean floor for hydrothermal vents, using autonomous underwater vehicles (AUVs process (POMDP), but with a very large state space (of the order of 10123 states). This size of problem

Yao, Xin

202

Hydrothermal System | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:PhotonHolyName HousingIII WindHybridsCarCalifornia,onHydrothermal

203

Solar Hot Water Contractor Licensing  

Broader source: Energy.gov [DOE]

In order to be eligible for Maine's solar thermal rebate program, systems must be installed by licensed plumbers who have received additional certification for solar thermal systems from the North...

204

"Hot" for Warm Water Cooling  

E-Print Network [OSTI]

This is because the heat capacity of liquids is orders ofthe heat capacity and transfer efficiency of liquids is

Coles, Henry

2012-01-01T23:59:59.000Z

205

"Hot" for Warm Water Cooling  

E-Print Network [OSTI]

be removed from the datacenter efficiently. The transitionone half of an air-cooled datacenter's energy consumption isof time if desired by the datacenter owner. If the building

Coles, Henry

2012-01-01T23:59:59.000Z

206

dist_hot_water.pdf  

Gasoline and Diesel Fuel Update (EIA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"Click worksheet9,1,50022,3,,,,6,1,,781Title: Telephone:short version)ec 1827 Table 7.2c43Current34 30

207

Solar Hot Water Contractor Licensing  

Broader source: Energy.gov [DOE]

Arkansas offers several limited, specialty licenses for solar thermal installers under the general plumbing license. There are three specialty classifications available for solar thermal...

208

"Hot" for Warm Water Cooling  

E-Print Network [OSTI]

points for maximum cooling liquid supply temperatures thatLiquid cooling guidelines may include: Supply temperatureliquid supply temperature for liquid cooling guidelines. Due

Coles, Henry

2012-01-01T23:59:59.000Z

209

"Hot" for Warm Water Cooling  

SciTech Connect (OSTI)

Liquid cooling is key to reducing energy consumption for this generation of supercomputers and remains on the roadmap for the foreseeable future. This is because the heat capacity of liquids is orders of magnitude larger than that of air and once heat has been transferred to a liquid, it can be removed from the datacenter efficiently. The transition from air to liquid cooling is an inflection point providing an opportunity to work collectively to set guidelines for facilitating the energy efficiency of liquid-cooled High Performance Computing (HPC) facilities and systems. The vision is to use non-compressor-based cooling, to facilitate heat re-use, and thereby build solutions that are more energy-efficient, less carbon intensive and more cost effective than their air-cooled predecessors. The Energy Efficient HPC Working Group is developing guidelines for warmer liquid-cooling temperatures in order to standardize facility and HPC equipment, and provide more opportunity for reuse of waste heat. This report describes the development of those guidelines.

IBM Corporation; Energy Efficient HPC Working Group; Hewlett Packard Corporation; SGI; Cray Inc.; Intel Corporation; U.S. Army Engineer Research Development Center; Coles, Henry; Ellsworth, Michael; Martinez, David J.; Bailey, Anna-Maria; Banisadr, Farhad; Bates, Natalie; Coghlan, Susan; Cowley, David E.; Dube, Nicholas; Fields, Parks; Greenberg, Steve; Iyengar, Madhusudan; Kulesza, Peter R.; Loncaric, Josip; McCann, Tim; Pautsch, Greg; Patterson, Michael K.; Rivera, Richard G.; Rottman, Greg K.; Sartor, Dale; Tschudi, William; Vinson, Wade; Wescott, Ralph

2011-08-26T23:59:59.000Z

210

Hydrothermal calcite in the Elephant Moraine  

SciTech Connect (OSTI)

In the course of geologic mapping of the Elephant Moraine on the east antarctic ice sheet, Faure and Taylor (1985) collected several specimens of black botryoidal calcite, composed of radiating acicular crystals that resemble stromatolites. Calcite from this and other specimens is significantly enriched in strontium-87 (the strontium-87/strontium-86 ratio equals 0.71417 +/- 0.00002), carbon-12 (delta carbon-13 equals -22.9 parts per thousand, PDB standard) and oxygen-16 (delta oxygen-18 equals -21.1 parts per thousand, standard mean ocean water) compared with calcite of marine origin. The enrichment in carbon-12 is similar to that of calcite associated with coal in the Allan Hills. The enrichment in oxygen-16 indicates that the calcite from the Elephant Moraine could only have precipitated in isotopic equilibrium with glacial melt water. Therefore, the temperature at which the black calcite precipitated from water of that isotope composition was about 85/sup 0/C. A temperature of this magnitude implies that the black calcite formed as a result of volcanic activity under the east antarctic ice sheet. The enrichment of the black calcite in carbon-12 suggests that it formed in part from carbon dioxide derived from the coal seams of the Weller Formation in the Beacon Supergroup. The isotopic composition of strontium in the black calcite is similar to that of carbonate beds and concretions in the Beacon rocks of southern Victoria Land. A volcanic-hydrothermal origin is also consistent with the very low total organic carbon content of 0.15% in the calcite.

Faure, G.; Taylor, K.S.; Jones, L.M.

1986-01-01T23:59:59.000Z

211

Biomass reforming processes in hydrothermal media  

E-Print Network [OSTI]

While hydrothermal technologies offer distinct advantages in being able to process a wide variety of biomass feedstocks, the composition of the feedstock will have a large effect on the processing employed. This thesis ...

Peterson, Andrew A

2009-01-01T23:59:59.000Z

212

The Development of a Hydrothermal Method for Slurry Feedstock Preparation for Gasification Technology  

E-Print Network [OSTI]

Hydrothermal gasification of biomass and organic wastes. Thewaste, and organic waste from anaerobic wastewater digester and black liquid from paper pulping process have been investigated in the supercritical water gasificationgasification normally exceeds 22MPa [131]. Flowable feedstocks, such as woody waste,

He, Wei

2011-01-01T23:59:59.000Z

213

Hot Dry Rock; Geothermal Energy  

SciTech Connect (OSTI)

The commercial utilization of geothermal energy forms the basis of the largest renewable energy industry in the world. More than 5000 Mw of electrical power are currently in production from approximately 210 plants and 10 000 Mw thermal are used in direct use processes. The majority of these systems are located in the well defined geothermal generally associated with crustal plate boundaries or hot spots. The essential requirements of high subsurface temperature with huge volumes of exploitable fluids, coupled to environmental and market factors, limit the choice of suitable sites significantly. The Hot Dry Rock (HDR) concept at any depth originally offered a dream of unlimited expansion for the geothermal industry by relaxing the location constraints by drilling deep enough to reach adequate temperatures. Now, after 20 years intensive work by international teams and expenditures of more than $250 million, it is vital to review the position of HDR in relation to the established geothermal industry. The HDR resource is merely a body of rock at elevated temperatures with insufficient fluids in place to enable the heat to be extracted without the need for injection wells. All of the major field experiments in HDR have shown that the natural fracture systems form the heat transfer surfaces and that it is these fractures that must be for geothermal systems producing from naturally fractured formations provide a basis for directing the forthcoming but, equally, they require accepting significant location constraints on HDR for the time being. This paper presents a model HDR system designed for commercial operations in the UK and uses production data from hydrothermal systems in Japan and the USA to demonstrate the reservoir performance requirements for viable operations. It is shown that these characteristics are not likely to be achieved in host rocks without stimulation processes. However, the long term goal of artificial geothermal systems developed by systematic engineering procedures at depth may still be attained if high temperature sites with extensive fracturing are developed or exploited. [DJE -2005

None

1990-01-01T23:59:59.000Z

214

Thermal Waters Along The Konocti Bay Fault Zone, Lake County...  

Open Energy Info (EERE)

thermal waters along the KBFZ contain >100 mgl Mg. High concentrations of dissolved magnesium are usually indicative of relatively cool hydrothermal systems. Dissolution of...

215

Anhydrite precipitation and the extent of hydrothermal recharge zones at ocean ridge crests  

E-Print Network [OSTI]

) and hydrothermal processes; 8135 Tectonophysics: Hydrothermal systems (8424); 3035 Marine Geology and Geophysics: Midocean ridge processes; 4832 Oceanography: Biological and Chemical: Hydrothermal systems; KEYWORDS, and biological processes on Earth. Seafloor hydrothermal systems transport nearly 33% of the global oceanic heat

Manga, Michael

216

The Development of a Hydrothermal Method for Slurry Feedstock Preparation for Gasification Technology  

E-Print Network [OSTI]

and J.C. Paraj, Hydrothermal processing of lignocellulosicHydrothermal Equipment. Journal of the Mining and Materials Processing

He, Wei

2011-01-01T23:59:59.000Z

217

Hydrothermal monitoring data from the Cascade Range, northwestern United States  

E-Print Network [OSTI]

Hydrothermal monitoring data from the Cascade Range, northwestern United States By S.E. Ingebritsen., and Evans, W.C., 2014, Hydrothermal monitoring data from the Cascade Range, northwestern United States: U ...................................................................................................................................27 (8) Carbonate springs

218

RESEARCH Open Access The fate of lignin during hydrothermal  

E-Print Network [OSTI]

RESEARCH Open Access The fate of lignin during hydrothermal pretreatment Heather L Trajano1 lignin removal, relocation, and/or modification during hydrothermal pretreatment. Phase transition, depolymerization/repolymerization, and solubility effects may all influence these lignin changes. To better

California at Riverside, University of

219

Characterization of advanced preprocessed materials (Hydrothermal)  

SciTech Connect (OSTI)

The initial hydrothermal treatment parameters did not achieve the proposed objective of this effort; the reduction of intrinsic ash in the corn stover. However, liquid fractions from the 170C treatments was indicative that some of the elements routinely found in the ash that negatively impact the biochemical conversion processes had been removed. After reviewing other options for facilitating ash removal, sodium-citrate (chelating agent) was included in the hydrothermal treatment process, resulting in a 69% reduction in the physiological ash. These results indicated that chelation hydrothermal treatment is one possible approach that can be utilized to reduce the overall ash content of feedstock materials and having a positive impact on conversion performance.

Rachel Emerson; Garold Gresham

2012-09-01T23:59:59.000Z

220

Calibrated Hydrothermal Parameters, Barrow, Alaska, 2013  

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

A model-observation-experiment process (ModEx) is used to generate three 1D models of characteristic micro-topographical land-formations, which are capable of simulating present active thaw layer (ALT) from current climate conditions. Each column was used in a coupled calibration to identify moss, peat and mineral soil hydrothermal properties to be used in up-scaled simulations. Observational soil temperature data from a tundra site located near Barrow, AK (Area C) is used to calibrate thermal properties of moss, peat, and sandy loam soil to be used in the multiphysics Advanced Terrestrial Simulator (ATS) models. Simulation results are a list of calibrated hydrothermal parameters for moss, peat, and mineral soil hydrothermal parameters.

Atchley, Adam; Painter, Scott; Harp, Dylan; Coon, Ethan; Wilson, Cathy; Liljedahl, Anna; Romanovsky, Vladimir

Note: This page contains sample records for the topic "hydrothermal hot water" 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

1 INRODUCTION The physico-chemical conditions in hydrothermal  

E-Print Network [OSTI]

processes. At present, however, our greatest unknown with respect to hydrothermal systems is time1 INRODUCTION The physico-chemical conditions in hydrothermal systems change through time and have made great progress understanding the physico-chemical conditions that control hydrothermal

Pichler, Thomas

222

Magma to Microbe: Modeling Hydrothermal Processes at Ocean Spreading Centers  

E-Print Network [OSTI]

215 Magma to Microbe: Modeling Hydrothermal Processes at Ocean Spreading Centers Geophysical is very limited. Low-temperature diffuse vent fluids, ubiquitous at hydrothermal systems, provide one microorganisms from diffuse hydrothermal vent fluids and the subseafloor at basalt-hosted mid-ocean ridges

Holden, James F.

223

Hydrothermal systems on Mars:an assessment of present evidence  

E-Print Network [OSTI]

sources, and hydrothermal processes have alsobeenproposed asamechanism foraquifer rechargeneededtoHydrothermal systems on Mars:an assessment of present evidence Jack D. Farmer NASA Ames ResearchCenter, M S 2 3 9 4 , Moffett Field, CA 94035-1000, U S A Abstract. Hydrothermal processeshavebeen

Farmer, Jack D.

224

Magma to Microbe: Modeling Hydrothermal Processes at Ocean Spreading Centers  

E-Print Network [OSTI]

233 Magma to Microbe: Modeling Hydrothermal Processes at Ocean Spreading Centers Geophysical to mixing between #12;234 MIcrOBE MInErAl prOcESSES In SEAflOOr SulfIdES seawater and the hydrothermal of Washington, Seattle, Washington, USA Hydrothermal vent sulfides are diverse and dynamic habitats

Holden, James F.

225

ORIGINAL PAPER Hydrothermal process synthesized electrocatalytic multi-walled  

E-Print Network [OSTI]

ORIGINAL PAPER Hydrothermal process synthesized electrocatalytic multi-walled carbon nanotubes as MWCNTs-Au, have been successfully prepared by a facile hydrothermal pro- cess of gold(III) chloride (Au. Keywords Hydrothermal Á Composites Á Au microparticles Á Multi-walled carbon nanotubes Á Ethanol oxidation

Guo, John Zhanhu

226

Techno-Economic Analysis of Liquid Fuel Production from Woody Biomass via Hydrothermal Liquefaction (HTL) and Upgrading  

SciTech Connect (OSTI)

A series of experimental work was conducted to convert woody biomass to gasoline and diesel range products via hydrothermal liquefaction (HTL) and catalytic hydroprocessing. Based on the best available test data, a techno-economic analysis (TEA) was developed for a large scale woody biomass based HTL and upgrading system to evaluate the feasibility of this technology. In this system, 2000 dry metric ton per day woody biomass was assumed to be converted to bio-oil in hot compressed water and the bio-oil was hydrotreated and/or hydrocracked to produce gasoline and diesel range liquid fuel. Two cases were evaluated: a stage-of-technology (SOT) case based on the tests results, and a goal case considering potential improvements based on the SOT case. Process simulation models were developed and cost analysis was implemented based on the performance results. The major performance results included final products and co-products yields, raw materials consumption, carbon efficiency, and energy efficiency. The overall efficiency (higher heating value basis) was 52% for the SOT case and 66% for the goal case. The production cost, with a 10% internal rate of return and 2007 constant dollars, was estimated to be $1.29 /L for the SOT case and $0.74 /L for the goal case. The cost impacts of major improvements for moving from the SOT to the goal case were evaluated and the assumption of reducing the organics loss to the water phase lead to the biggest reduction in the production cost. Sensitivity analysis indicated that the final products yields had the largest impact on the production cost compared to other parameters. Plant size analysis demonstrated that the process was economically attractive if the woody biomass feed rate was over 1,500 dry tonne/day, the production cost was competitive with the then current petroleum-based gasoline price.

Zhu, Yunhua; Biddy, Mary J.; Jones, Susanne B.; Elliott, Douglas C.; Schmidt, Andrew J.

2014-09-15T23:59:59.000Z

227

SUBJECT INDEX advection, pore water, A:3031  

E-Print Network [OSTI]

, A:29 Atlantic Ocean, hydrothermal processes, B2:1­12 Azimuthal Resistivity Imager, Site 395A, A:4 calcium pore water, A:31 vs. depth, A:32 caliper logs, vs. depth, A:18; B2:10 carbonate content. depth, A:31, 33 computed gamma ray logs, vs. depth, A:19 crust, oceanic, off-axis hydrothermal processes

228

Storage capacity in hot dry rock reservoirs  

DOE Patents [OSTI]

A method is described for extracting thermal energy, in a cyclic manner, from geologic strata which may be termed hot dry rock. A reservoir comprised of hot fractured rock is established and water or other liquid is passed through the reservoir. The water is heated by the hot rock, recovered from the reservoir, cooled by extraction of heat by means of heat exchange apparatus on the surface, and then re-injected into the reservoir to be heated again. Water is added to the reservoir by means of an injection well and recovered from the reservoir by means of a production well. Water is continuously provided to the reservoir and continuously withdrawn from the reservoir at two different flow rates, a base rate and a peak rate. Increasing water flow from the base rate to the peak rate is accomplished by rapidly decreasing backpressure at the outlet of the production well in order to meet periodic needs for amounts of thermal energy greater than a baseload amount, such as to generate additional electric power to meet peak demands. The rate of flow of water provided to the hot dry rock reservoir is maintained at a value effective to prevent depletion of the liquid inventory of the reservoir. 4 figs.

Brown, D.W.

1997-11-11T23:59:59.000Z

229

Storage capacity in hot dry rock reservoirs  

DOE Patents [OSTI]

A method of extracting thermal energy, in a cyclic manner, from geologic strata which may be termed hot dry rock. A reservoir comprised of hot fractured rock is established and water or other liquid is passed through the reservoir. The water is heated by the hot rock, recovered from the reservoir, cooled by extraction of heat by means of heat exchange apparatus on the surface, and then re-injected into the reservoir to be heated again. Water is added to the reservoir by means of an injection well and recovered from the reservoir by means of a production well. Water is continuously provided to the reservoir and continuously withdrawn from the reservoir at two different flow rates, a base rate and a peak rate. Increasing water flow from the base rate to the peak rate is accomplished by rapidly decreasing backpressure at the outlet of the production well in order to meet periodic needs for amounts of thermal energy greater than a baseload amount, such as to generate additional electric power to meet peak demands. The rate of flow of water provided to the hot dry rock reservoir is maintained at a value effective to prevent depletion of the liquid

Brown, Donald W. (Los Alamos, NM)

1997-01-01T23:59:59.000Z

230

Medical Hot Springs Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat JumpIncMAKGalwayHydrothermalMcFarland isDiscoveries Inc Jump to:Hot

231

Hydrothermal alkali metal recovery process  

DOE Patents [OSTI]

In a coal gasification operation or similar conversion process carried out in the presence of an alkali metal-containing catalyst wherein solid particles containing alkali metal residues are produced, alkali metal constituents are recovered from the particles by treating them with a calcium or magnesium-containing compound in the presence of water at a temperature between about 250.degree. F. and about 700.degree. F. and in the presence of an added base to establish a pH during the treatment step that is higher than would otherwise be possible without the addition of the base. During the treating process the relatively high pH facilitates the conversion of water-insoluble alkali metal compounds in the alkali metal residues into water-soluble alkali metal constituents. The resultant aqueous solution containing water-soluble alkali metal constituents is then separated from the residue solids, which consist of the treated particles and any insoluble materials formed during the treatment step, and recycled to the gasification process where the alkali metal constituents serve as at least a portion of the alkali metal constituents which comprise the alkali metal-containing catalyst. Preferably, the base that is added during the treatment step is an alkali metal hydroxide obtained by water washing the residue solids produced during the treatment step.

Wolfs, Denise Y. (Houston, TX); Clavenna, Le Roy R. (Baytown, TX); Eakman, James M. (Houston, TX); Kalina, Theodore (Morris Plains, NJ)

1980-01-01T23:59:59.000Z

232

Preparation and gasification of a Thailand coal-water fuel  

SciTech Connect (OSTI)

In response to an inquiry by the Department of Mineral Resources (DMR) in Thailand, the Energy and Environmental Research Center (EERC) prepared a four-task program to assess the responsiveness of Wiang Haeng coal to the temperature and pressure conditions of hot-water drying (HWD). The results indicate that HWD made several improvements in the coal, notably increases in heating value and carbon content and reductions in equilibrium moisture and oxygen content. The equilibrium moisture content decreased from 37.4 wt% for the raw coal to about 20 wt% for the HWD coals. The energy density, determined at 500 cP, indicates an increase from 4450 to 6650 Btu/lb by hydrothermal treatment. Raw and HWD coal were then gasified at various mild gasification conditions of 700 C and 30 psig. The tests indicated that the coal is probably similar to other low-rank coals and will produce high levels of hydrogen and be fairly reactive.

Ness, R.O. Jr.; Anderson, C.M.; Musich, M.A.; Richter, J.J.; Dewall, R.A.; Young, B.C. [Univ. of North Dakota, Grand Forks, ND (United States). Energy and Environmental Research Center; Nakanart, A. [Ministry of Industry, Bangkok (Thailand)

1996-12-31T23:59:59.000Z

233

WATER AS A REAGENT FOR SOIL REMEDIATION  

SciTech Connect (OSTI)

SRI International conducted experiments in a two-year, two-phase process to develop and evaluate hydrothermal extraction technology, also known as hot water extraction (HWE) technology, to separate petroleum-related contaminants and other hazardous pollutants from soil and sediments. In this process, water with added electrolytes (inexpensive and environmentally friendly) is used as the extracting solvent under subcritical conditions (150-300 C). The use of electrolytes allows us to operate reactors under mild conditions and to obtain high separation efficiencies that were hitherto impossible. Unlike common organic solvents, water under subcritical conditions dissolves both organics and inorganics, thus allowing opportunities for separation of both organic and inorganic material from soil. In developing this technology, our systematic approach was to (1) establish fundamental solubility data, (2) conduct treatability studies with industrial soils, and (3) perform a bench-scale demonstration using a highly contaminated soil. The bench-scale demonstration of the process has shown great promise. The next step of the development process is the successful pilot demonstration of this technology. Once pilot tested, this technology can be implemented quite easily, since most of the basic components are readily available from mature technologies (e.g., steam stripping, soil washing, thermal desorption). The implementation of this technology will revolutionize the conventional use of water in soil remediation technologies and will provide a stand-alone technology for removal of both volatile and heavy components from contaminated soil.

Indira S. Jayaweera; Montserrat Marti-Perez; Jordi Diaz-Ferrero; Angel Sanjurjo

2001-11-12T23:59:59.000Z

234

Whole Algae Hydrothermal Liquefaction Technology Pathway  

SciTech Connect (OSTI)

In support of the Bioenergy Technologies Office, the National Renewable Energy Laboratory (NREL) and the Pacific Northwest National Laboratory (PNNL) are undertaking studies of biomass conversion technologies to hydrocarbon fuels to identify barriers and target research toward reducing conversion costs. Process designs and preliminary economic estimates for each of these pathway cases were developed using rigorous modeling tools (Aspen Plus and Chemcad). These analyses incorporated the best information available at the time of development, including data from recent pilot and bench-scale demonstrations, collaborative industrial and academic partners, and published literature and patents. This pathway case investigates the feasibility of using whole wet microalgae as a feedstock for conversion via hydrothermal liquefaction. Technical barriers and key research needs have been assessed in order for the hydrothermal liquefaction of microalgae to be competitive with petroleum-derived gasoline, diesel and jet range blendstocks.

Biddy, Mary J.; Davis, Ryan; Jones, Susanne B.; Zhu, Yunhua

2013-03-31T23:59:59.000Z

235

Hydrothermal reaction of fly ash. Final report  

SciTech Connect (OSTI)

The reactions which occur when fly ash is treated under hydrothermal conditions were investigated. This was done for the following primary reasons. The first of these is to determine the nature of the phases that form to assess the stabilities of these phases in the ambient environment and, finally, to assess whether these phases are capable of sequestering hazardous species. The second reason for undertaking this study was whether, depending on the composition of the ash and the presence of selected additives, it would be possible under hydrothermal conditions to form compounds which have cementitious properties. Formation of four classes of compounds, which bracket likely fly ash compositional ranges, were selected for study. The classes are calcium silicate hydrates, calcium selenates, and calcium aluminosulfates, and silicate-based glasses. Specific compounds synthesized were determined and their stability regions assessed. As part of stability assessment, the extent to which selected hazardous species are sequestered was determined. Finally, the cementing properties of these compounds were established. The results obtained in this program have demonstrated that mild hydrothermal conditions can be employed to improve the reactivity of fly ash. Such improvements in reactivity can result in the formation of monolithic forms which may exhibit suitable mechanical properties for selected applications as building materials. If the ashes involved are considered hazardous, the mechanical properties exhibited indicated the forms could be handled in a manner which facilitates their disposal.

Brown, P.W.

1994-12-31T23:59:59.000Z

236

Caldera processes and magma-hydrothermal systems continental scientific drilling program: thermal regimes, Valles caldera research, scientific and management plan  

SciTech Connect (OSTI)

Long-range core-drilling operations and initial scientific investigations are described for four sites in the Valles caldera, New Mexico. The plan concentrates on the period 1986 to 1993 and has six primary objectives: (1) study the origin, evolution, physical/chemical dynamics of the vapor-dominated portion of the Valles geothermal system; (2) investigate the characteristics of caldera fill and mechanisms of caldera collapse and resurgence; (3) determine the physical/chemical conditions in the heat transfer zone between crystallizing plutons and the hydrothermal system; (4) study the mechanism of ore deposition in the caldera environment; (5) develop and test high-temperature drilling techniques and logging tools; and (6) evaluate the geothermal resource within a large silicic caldera. Core holes VC-2a (500 m) and VC-2b (2000 m) are planned in the Sulphur Springs area; these core holes will probe the vapor-dominated zone, the underlying hot-water-dominated zone, the boiling interface and probable ore deposition between the two zones, and the deep structure and stratigraphy along the western part of the Valles caldera fracture zone and resurgent dome. Core hole VC-3 will involve reopening existing well Baca number12 and deepening it from 3.2 km (present total depth) to 5.5 km, this core hole will penetrate the deep-crystallized silicic pluton, investigate conductive heat transfer in that zone, and study the evolution of the central resurgent dome. Core hole VC-4 is designed to penetrate deep into the presumably thick caldera fill in eastern Valles caldera and examine the relationship between caldera formation, sedimentation, tectonics, and volcanism. Core hole VC-5 is to test structure, stratigraphy, and magmatic evolution of pre-Valles caldera rocks, their relations to Valles caldera, and the influences of regional structure on volcanism and caldera formation.

Goff, F.; Nielson, D.L. (eds.)

1986-05-01T23:59:59.000Z

237

Florida Sunshine -- Natural Source for Heating Water  

SciTech Connect (OSTI)

This brochure, part of the State Energy Program (SEP) Stellar Project series, describes a utility solar hot water program in Lakeland, Florida. It is the first such utility-run solar hot water program in the country.

Not Available

2002-05-01T23:59:59.000Z

238

Reactor hot spot analysis  

SciTech Connect (OSTI)

The principle methods for performing reactor hot spot analysis are reviewed and examined for potential use in the Applied Physics Division. The semistatistical horizontal method is recommended for future work and is now available as an option in the SE2-ANL core thermal hydraulic code. The semistatistical horizontal method is applied to a small LMR to illustrate the calculation of cladding midwall and fuel centerline hot spot temperatures. The example includes a listing of uncertainties, estimates for their magnitudes, computation of hot spot subfactor values and calculation of two sigma temperatures. A review of the uncertainties that affect liquid metal fast reactors is also presented. It was found that hot spot subfactor magnitudes are strongly dependent on the reactor design and therefore reactor specific details must be carefully studied. 13 refs., 1 fig., 5 tabs.

Vilim, R.B.

1985-08-01T23:59:59.000Z

239

Numerical investigation of transient hydrothermal processes around intrusions: heat-transfer and fluid-  

E-Print Network [OSTI]

Numerical investigation of transient hydrothermal processes around intrusions: heat the intrusion. Keywords: Hydrothermal processes, numerical modelling, magmatic intrusion, permeability- depth around magmatic intrusions have been obtained through coupled hydrothermal numerical modelling that takes

Paris-Sud XI, Université de

240

Development of a Hydrothermal Spallation Drilling System for...  

Open Energy Info (EERE)

eliminating bit wear and drill string fatigue, hydrothermal spallation drilling can transform the costs of geothermal well construction and enable widespread deployment of...

Note: This page contains sample records for the topic "hydrothermal hot water" 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

active hydrothermal systems: Topics by E-print Network  

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

Mars: channelslocatedalongthe margins of impactcrater Farmer, Jack D. 7 Interconnected hydro-thermal systems Models, methods, and applications Computer Technologies and...

242

Robust optimization based self scheduling of hydro-thermal Genco ...  

E-Print Network [OSTI]

Dec 29, 2013 ... Abstract: This paper proposes a robust optimization model for optimal self scheduling of a hydro-thermal generating company. The proposed...

Alireza Soroudi

2013-12-29T23:59:59.000Z

243

active hydrothermal system: Topics by E-print Network  

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

Mars: channelslocatedalongthe margins of impactcrater Farmer, Jack D. 7 Interconnected hydro-thermal systems Models, methods, and applications Computer Technologies and...

244

Development of a Hydrothermal Spallation Drilling System for EGS  

Broader source: Energy.gov [DOE]

Project objective: Build and demonstrate a working prototype hydrothermal spallation drilling unit that will accelerate commercial deployment of EGS as a domestic energy resource.

245

Volatiles in hydrothermal fluids- A mass spectrometric study...  

Open Energy Info (EERE)

Volatiles in hydrothermal fluids- A mass spectrometric study of fluid inclusions from active geothermal systems Jump to: navigation, search OpenEI Reference LibraryAdd to library...

246

A Helium Isotope Perspective On The Dixie Valley, Nevada, Hydrothermal...  

Open Energy Info (EERE)

A Helium Isotope Perspective On The Dixie Valley, Nevada, Hydrothermal System Abstract Fluids from springs, fumaroles, and wells throughout Dixie Valley, NV were analyzed for noble...

247

Hydrothermal Alteration and Past and Present Thermal Regimes...  

Open Energy Info (EERE)

OpenEI Reference LibraryAdd to library Journal Article: Hydrothermal Alteration and Past and Present Thermal Regimes in the Western Moat of Long Valley Caldera Abstract...

248

Energy Densification of Lignocellulosic Biomass via Hydrothermal Carbonization and Torrefaction .  

E-Print Network [OSTI]

??The work presented in this study demonstrated the potential of hydrothermal carbonization (HTC) of biomass for the production of carbon-rich solid fuel, known as hydrochar (more)

Kambo, Harpreet Singh

2014-01-01T23:59:59.000Z

249

Altered Tectonic and Hydrothermal Breccias in Corehole VC-1,...  

Open Energy Info (EERE)

we will briefly discuss each of the major deep breccias in VC-l, examine the style, intensity and paragenesis of their hydrothermal alteration, and speculate on their...

250

Oxygen And Carbon Isotope Ratios Of Hydrothermal Minerals From...  

Open Energy Info (EERE)

boiling or by isotopic exchange at low waterrock ratios in new fractures. The mineralogy and apparent 18O enrichments of hydrothermal fracture-filling minerals are...

251

E-Print Network 3.0 - apparent hydrothermal vents Sample Search...  

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

vents... sites of intense hydrothermal activity, with 370C, highly acidic vent fluids gushing out of towering... fossilisation in deep-sea hydrothermal vents. Indeed, these...

252

Recommended requirements to code officials for solar heating, cooling, and hot water systems. Model document for code officials on solar heating and cooling of buildings  

SciTech Connect (OSTI)

These recommended requirements include provisions for electrical, building, mechanical, and plumbing installations for active and passive solar energy systems used for space or process heating and cooling, and domestic water heating. The provisions in these recommended requirements are intended to be used in conjunction with the existing building codes in each jurisdiction. Where a solar relevant provision is adequately covered in an existing model code, the section is referenced in the Appendix. Where a provision has been drafted because there is no counterpart in the existing model code, it is found in the body of these recommended requirements. Commentaries are included in the text explaining the coverage and intent of present model code requirements and suggesting alternatives that may, at the discretion of the building official, be considered as providing reasonable protection to the public health and safety. Also included is an Appendix which is divided into a model code cross reference section and a reference standards section. The model code cross references are a compilation of the sections in the text and their equivalent requirements in the applicable model codes. (MHR)

None

1980-06-01T23:59:59.000Z

253

Hydrothermally grown nanostructured WO films and their electrochromic characteristics  

E-Print Network [OSTI]

Hydrothermally grown nanostructured WO 3 films and their electrochromic characteristics.1088/0022-3727/43/28/285501 Hydrothermally grown nanostructured WO3 films and their electrochromic characteristics Zhihui Jiao1 , Xiao Wei and their electrochromic characteristics. Plate-like monoclinic WO3 nanostructures were grown directly on fluorine

Demir, Hilmi Volkan

254

Synthesis of a Se0 /Calcite Composite Using Hydrothermal  

E-Print Network [OSTI]

Synthesis of a Se0 /Calcite Composite Using Hydrothermal Carbonation of Ca(OH)2 Coupled in a batch system by hydrothermal carbonation of calcium hydroxide under high CO2-Ar pressure (90 bar. The carbonate matrix was constituted by nano- to microrhombohedral crystals (

Montes-Hernandez, German

255

MICROBIAL AMMONIA OXIDATION IN DEEP-SEA HYDROTHERMAL PLUMES  

E-Print Network [OSTI]

MICROBIAL AMMONIA OXIDATION IN DEEP-SEA HYDROTHERMAL PLUMES A DISSERTATION SUBMITTED;ABSTRACT Autotrophic ammonia oxidation has been documented for the first time in deep- sea hydrothermal autotrophic ammonia oxidation at ~ 91 nM d-1 , and potentially produces de novo organic carbon at a rate (0

Luther, Douglas S.

256

Synthesis of a Se0 /calcite composite using hydrothermal1  

E-Print Network [OSTI]

1 Synthesis of a Se0 /calcite composite using hydrothermal1 carbonation of Ca(OH)2 coupled800141p #12;2 Abstract1 2 In this study, the hydrothermal carbonation of calcium hydroxide under high CO2 "crystalline elemental selenium" (carbonate matrix was constituted

Paris-Sud XI, Université de

257

Hydrothermal Activity and Travertine Deposits in Valles Caldera Paul Withers  

E-Print Network [OSTI]

Hydrothermal Activity and Travertine Deposits in Valles Caldera Paul Withers Valles Caldera for the Valles Caldera hydrothermal system [fig]. Some fluids escape in acid springs and mud pits (Sulphur mineral deposits as they cool, specifically travertine. Travertine is a freshwater, calcium carbonate

Withers, Paul

258

Experimental investigation of single carbon compounds under hydrothermal conditions  

E-Print Network [OSTI]

Experimental investigation of single carbon compounds under hydrothermal conditions Jeffrey S; accepted in revised form 8 September 2005 Abstract The speciation of carbon in subseafloor hydrothermal reactant during the abiotic synthesis of reduced carbon compounds via Fischer­Tropsch-type processes

Rhoads, James

259

A Serpentinite-Hosted Ecosystem: The Lost City Hydrothermal Field  

E-Print Network [OSTI]

A Serpentinite-Hosted Ecosystem: The Lost City Hydrothermal Field Deborah S. Kelley,1 * Jeffrey A. Baross,1 Roger E. Summons,7 Sean P. Sylva4 The serpentinite-hosted Lost City hydrothermal field is a remarkable submarine ecosystem in which geological, chemical, and biological processes are intimately

Gilli, Adrian

260

Hydrothermal plume dynamics on Europa: Implications for chaos formation  

E-Print Network [OSTI]

Hydrothermal plume dynamics on Europa: Implications for chaos formation Jason C. Goodman,1 Geoffrey December 2003; accepted 12 January 2004; published 20 March 2004. [1] Hydrothermal plumes may a liquid ocean to the base of its ice shell. This process has been implicated in the formation of chaos

Pierrehumbert, Raymond

Note: This page contains sample records for the topic "hydrothermal hot water" 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

Hydrothermal Photo Library | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in3.pdfEnergy Health andof EnergyHydrogen-Powered Buses BrochureEnergyHydrothermal

262

IR Hot Wave  

SciTech Connect (OSTI)

The IR Hot Wave{trademark} furnace is a breakthrough heat treatment system for manufacturing metal components. Near-infrared (IR) radiant energy combines with IR convective heating for heat treating. Heat treatment is an essential process in the manufacture of most components. The controlled heating and cooling of a metal or metal alloy alters its physical, mechanical, and sometimes chemical properties without changing the object's shape. The IR Hot Wave{trademark} furnace offers the simplest, quickest, most efficient, and cost-effective heat treatment option for metals and metal alloys. Compared with other heat treatment alternatives, the IR Hot Wave{trademark} system: (1) is 3 to 15 times faster; (2) is 2 to 3 times more energy efficient; (3) is 20% to 50% more cost-effective; (4) has a {+-}1 C thermal profile compared to a {+-}10 C thermal profile for conventional gas furnaces; and (5) has a 25% to 50% smaller footprint.

Graham, T. B.

2010-04-01T23:59:59.000Z

263

Hot air drum evaporator. [Patent application  

DOE Patents [OSTI]

An evaporation system for aqueous radioactive waste uses standard 30 and 55 gallon drums. Waste solutions form cascading water sprays as they pass over a number of trays arranged in a vertical stack within a drum. Hot dry air is circulated radially of the drum through the water sprays thereby removing water vapor. The system is encased in concrete to prevent exposure to radioactivity. The use of standard 30 and 55 gallon drums permits an inexpensive compact modular design that is readily disposable, thus eliminating maintenance and radiation build-up problems encountered with conventional evaporation systems.

Black, R.L.

1980-11-12T23:59:59.000Z

264

Tankless Gas Water Heater Performance - Building America Top...  

Energy Savers [EERE]

Tankless Gas Water Heater Performance - Building America Top Innovation Tankless Gas Water Heater Performance - Building America Top Innovation This photo shows a hot water heater...

265

Process Development for Hydrothermal Liquefaction of Algae Feedstocks in a Continuous-Flow Reactor  

SciTech Connect (OSTI)

Wet algae slurries can be converted into an upgradeable biocrude by hydrothermal liquefaction (HTL). High levels of carbon conversion to gravity-separable biocrude product were accomplished at relatively low temperature (350 ?C) in a continuous-flow, pressurized (sub-critical liquid water) environment (20 MPa). As opposed to earlier work in batch reactors reported by others, direct oil recovery was achieved without the use of a solvent and biomass trace components were removed by processing steps so that they did not cause process difficulties. High conversions were obtained even with high slurry concentrations of up to 35 wt% of dry solids. Catalytic hydrotreating was effectively applied for hydrodeoxygenation, hydrodenitrogenation, and hydrodesulfurization of the biocrude to form liquid hydrocarbon fuel. Catalytic hydrothermal gasification was effectively applied for HTL byproduct water cleanup and fuel gas production from water soluble organics, allowing the water to be considered for recycle of nutrients to the algae growth ponds. As a result, high conversion of algae to liquid hydrocarbon and gas products was found with low levels of organic contamination in the byproduct water. All three process steps were accomplished in bench-scale, continuous-flow reactor systems such that design data for process scale-up was generated.

Elliott, Douglas C.; Hart, Todd R.; Schmidt, Andrew J.; Neuenschwander, Gary G.; Rotness, Leslie J.; Olarte, Mariefel V.; Zacher, Alan H.; Albrecht, Karl O.; Hallen, Richard T.; Holladay, Johnathan E.

2013-10-01T23:59:59.000Z

266

Hydrothermal reactions of fly ash. Final report  

SciTech Connect (OSTI)

The emphasis of the work done has been to determine the reactivities of two ashes believed to be representative of those generated. A bituminous ash and a lignitic ash have been investigated. The reactions of these ashes undergo when subjected to mild hydrothermal conditions were explored. The nature of the reactions which the ashes undergo when alkaline activators, calcium hydroxide and calcium sulfate are present was also investigated. It was determined that calcium silicate hydrate, calcium aluminate hydrate, and the calcium sulfoaluminate hydrate ettringite form under these conditions. It appears 3CaO{center_dot}Al{sub 2}O{sub 3}{center_dot}3CaSO{sub 4}{center_dot}32H{sub 2}O (ettringite) formation needs to be considered in ashes which contain significant amounts of sulfate. Therefore the stability region for ettringite was established. It was also determined that calcium silicate hydrate, exhibiting a high internal surface area, will readily form with hydrothermal treatment between 50{degrees} and 100{degrees}C. This phase is likely to have a significant capacity to take up heavy metals and oxyanions and this ability is being explored.

Brown, P.W.

1995-12-31T23:59:59.000Z

267

Trace-Element Distribution In An Active Hydrothermal System, Roosevelt Hot  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-gTaguspark JumpDetective:Toyo Aluminium KK Jump to:Springs Thermal Area,

268

Hydrothermal alteration in research drill hole Y-2, Lower Geyser Basin, Yellowstone National Park, Wyoming  

SciTech Connect (OSTI)

Y-2, a US Geological Survey research diamond-drill hole in Lower Geyser Basin, Yellowstone National Park, was drilled to a depth of 157.4 meters. The hole penetrated interbedded siliceous sinter and travertine to 10.2 m, glacial sediments of the Pinedale Glaciation interlayered with pumiceous tuff from 10.2 to 31.7 m, and rhyolitic lavas of the Elephant Back flow of the Central Plateau Member and the Mallard Lake Member of the Pleistocene Plateau Rhyolite from 31.7 to 157.4 m. Hydrothermal alteration is pervasive in most of the nearly continuous drill core. Rhyolitic glass has been extensively altered to clay and zeolite minerals (intermediate heulandite, clinoptilolite, mordenite, montmorillonite, mixed-layer illite-montmorillonite, and illite) in addition to quartz and adularia. Numerous veins, vugs, and fractures in the core contain these and other minerals: silica minerals (opal, ..beta..-cristobalite, ..cap alpha..-cristobalite, and chalcedony), zeolites (analcime, wairakite, dachiardite, laumontite, and yugawaralite), carbonates (calcite and siderite), clay (kaolinite and chlorite), oxides (hematite, goethite, manganite, cryptomelane, pyrolusite, and groutite), and sulfides (pyrhotite and pyrite) along with minor aegirine, fluorite, truscottite, and portlandite. Interbedded travertine and siliceous sinter in the upper part of the drill core indicate that two distinct types of thermal water are responsible for precipitation of the surficial deposits, and further that the water regime has alternated between the two thermal waters more than once since the end of the Pinedale Glaciation (approx. 10,000 years B.P.). Alternation of zones of calcium-rich and sodium- and potassium-rich hydrothermal minerals also suggests that the calcium-rich and sodium- and potassium-rich hydrothermal minerals also suggests that the water chemistry in this drill hole varies with depth.

Bargar, K.E.; Beeson, M.H.

1981-05-01T23:59:59.000Z

269

Yttrium and rare earth elements in fluids from various deep-sea hydrothermal systems  

SciTech Connect (OSTI)

Rare earth element (REE) and yttrium (Y) concentrations were measured in fluids collected from deep-sea hydrothermal systems including the Mid-Atlantic Ridge (MAR), i.e., Menez Gwen, Lucky Strike, TAG, and Snakepit; the East Pacific Rise (EPR), i.e., 13{degree}N and 17--19{degree}S; and the Lau (Vai Lili) and Manus (Vienna Woods, PacManus, Desmos) Back-arc Basins (BAB) in the South-West Pacific. In most fluids, Y is trivalent and behaves like Ho. Chondrite normalized Y-REE (Y-REE{sub N}) concentrations of fluids from MAR, EPR, and two BAB sites, i.e., Vai Lili and Vienna Woods, showed common patterns with LREE enrichment and positive Eu anomalies. REE analysis of plagioclase collected at Lucky Strike strengthens the idea that fluid REE contents, are controlled by plagioclase phenocrysts. Other processes, however, such as REE complexation by ligands (Cl{sup {minus}}, F{sup {minus}}, So{sub 4}{sup 2{minus}}), secondary phase precipitation, and phase separation modify REE distributions in deep-sea hydrothermal fluids. REE speciation calculations suggest that aqueous REE are mainly complexed by Cl{sup {minus}} ions in hot acidic fluids from deep-sea hydrothermal systems. REE concentrations in the fluid phases are, therefore, influenced by temperature, pH, and duration of rock-fluid interaction. Unusual Y-REE{sub N} patterns found in the PacManus fluids are characterized by depleted LREE and a positive Eu anomaly. The Demos fluid sample shows a flat Y-REE{sub N} pattern, which increases regularly from LREE to HREE with no Eu anomaly. These Manus Basin fluids also have an unusual major element chemistry with relatively high Mg, So{sub 4}, H{sub 2}S, and F contents, which may be due to the incorporation of magmatic fluids into heated seawater during hydrothermal circulation. REE distribution in PacManus fluids may stem from a subseafloor barite precipitation and the REE in Demos fluids are likely influenced by the presence of sulfate ions.

Douville, E. [Univ. Bretagne Occidentale, Brest (France). Dept. de Chimie] [Univ. Bretagne Occidentale, Brest (France). Dept. de Chimie; [IFREMER Centre de Brest, Plouzane (France); Appriou, P. [Univ. Bretagne Occidentale, Brest (France)] [Univ. Bretagne Occidentale, Brest (France); Bienvenu, P. [CEA Cadarache, Saint Paul Lez Durance (France). Lab. d`Analyses Radiochimiques et Chimiques] [CEA Cadarache, Saint Paul Lez Durance (France). Lab. d`Analyses Radiochimiques et Chimiques; Charlou, J.L.; Donval, J.P.; Fouquet, Y. [IFREMER Centre de Brest, Plouzane (France)] [IFREMER Centre de Brest, Plouzane (France); Gamo, Toshitaka [Univ. of Tokyo, Nakano, Tokyo (Japan). Ocean Research Inst.] [Univ. of Tokyo, Nakano, Tokyo (Japan). Ocean Research Inst.

1999-03-01T23:59:59.000Z

270

Hot Water Distribution System Model Enhancements  

SciTech Connect (OSTI)

This project involves enhancement of the HWSIM distribution system model to more accurately model pipe heat transfer. Recent laboratory testing efforts have indicated that the modeling of radiant heat transfer effects is needed to accurately characterize piping heat loss. An analytical methodology for integrating radiant heat transfer was implemented with HWSIM. Laboratory test data collected in another project was then used to validate the model for a variety of uninsulated and insulated pipe cases (copper, PEX, and CPVC). Results appear favorable, with typical deviations from lab results less than 8%.

Hoeschele, M.; Weitzel, E.

2012-11-01T23:59:59.000Z

271

Hydrothermal Testing of K Basin Sludge and N Reactor Fuel at Sludge Treatment Project Operating Conditions  

SciTech Connect (OSTI)

The Sludge Treatment Project (STP), managed for the U. S. DOE by Fluor Hanford (FH), was created to design and operate a process to eliminate uranium metal from K Basin sludge prior to packaging for Waste Isolation Pilot Plant (WIPP). The STP process uses high temperature liquid water to accelerate the reaction, produce uranium dioxide from the uranium metal, and safely discharge the hydrogen. Under nominal process conditions, the sludge will be heated in pressurized water at 185C for as long as 72 hours to assure the complete reaction (corrosion) of up to 0.25-inch diameter uranium metal pieces. Under contract to FH, the Pacific Northwest National Laboratory (PNNL) conducted bench-scale testing of the STP hydrothermal process in November and December 2006. Five tests (~50 ml each) were conducted in sealed, un-agitated reaction vessels under the hydrothermal conditions (e.g., 7 to 72 h at 185C) of the STP corrosion process using radioactive sludge samples collected from the K East Basin and particles/coupons of N Reactor fuel also taken from the K Basins. The tests were designed to evaluate and understand the chemical changes that may be occurring and the effects that any changes would have on sludge rheological properties. The tests were not designed to evaluate engineering aspects of the process. The hydrothermal treatment affected the chemical and physical properties of the sludge. In each test, significant uranium compound phase changes were identified, resulting from dehydration and chemical reduction reactions. Physical properties of the sludge were significantly altered from their initial, as-settled sludge values, including, shear strength, settled density, weight percent water, and gas retention.

Delegard, Calvin H.; Schmidt, Andrew J.; Thornton, Brenda M.

2007-03-30T23:59:59.000Z

272

Considerations for Energy Efficient Showers in Hot-Humid Climates  

E-Print Network [OSTI]

CONSIDERATIONS FOR ENERGY EFFICIENT SHOWERS IN HOT-HUMID CLIMATES D. E. Claridge and W.D. Turner Energy Systems Laboratory Department of Mechanical Engineering Texas ALM University ABSTRACT Measurements have been conducted on four low... for typical operation in Texas. This has significant implications for everyone who purchases or uses showerheads; this is particularly true in hot climates where supply water temperatures are relatively high. TESTS CONDUCTED Showerheads Tested Two...

Claridge, D. E.; Turner, W. D.

1989-01-01T23:59:59.000Z

273

The Hydrothermal Outflow Plume of Valles Caldera, New Mexico...  

Open Energy Info (EERE)

Plume of Valles Caldera, New Mexico, and a Comparison with Other Outflow Plumes Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: The Hydrothermal...

274

Self-excited hydrothermal waves in evaporating sessile drops  

E-Print Network [OSTI]

Pattern formation driven by the spontaneous evaporation of sessile drops of methanol, ethanol, and FC-72 using infrared thermography is observed and, in certain cases, interpreted in terms of hydrothermal waves. Both methanol and ethanol drops...

Sefiane K.; Moffat J.R.; Matar O.K.; Craster R.V.

2008-08-01T23:59:59.000Z

275

Sources Of Chloride In Hydrothermal Fluids From The Valles Caldera...  

Open Energy Info (EERE)

Of Chloride In Hydrothermal Fluids From The Valles Caldera, New Mexico- A 36Cl Study Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Sources Of...

276

Base hydrolysis and hydrothermal processing of PBX-9404  

SciTech Connect (OSTI)

Base hydrolysis in combination with hydrothermal processing has been proposed as an environmentally acceptable alternative to open burning/open detonation for degradation and destruction of high explosives. In this report, the authors examine gaseous and aqueous products of base hydrolysis of the HMX-based plastic bonded explosive, PBX-9404. They also examined products from the subsequent hydrothermal treatment of the base hydrolysate. The gases produced from hydrolysis of PBX-9404 are ammonia, nitrous oxide, and nitrogen. Major aqueous products are sodium formate, acetate, nitrate, and nitrite, but not all carbon products have been identified. Hydrothermal processing of base hydrolysate destroyed up to 98% of the organic carbon in solution, and higher destruction efficiencies are possible. Major gas products detected from hydrothermal processing were nitrogen and nitrous oxide.

Flesner, R.L.; Spontarelli, T.; Dell`Orco, P.C.; Sanchez, J.A.

1994-11-01T23:59:59.000Z

277

Hydrothermal Syntheses of Colloidal Carbon Spheres from Cyclodextrins...  

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

from aqueous alpha-, beta-, and gamma-cyclodextrin (CD) solutions in closed systems under hydrothermal conditions at 160 oC. Both liquid and solid-state 13C NMR spectra taken for...

278

Seismic Evidence For A Hydrothermal Layer Above The Solid Roof...  

Open Energy Info (EERE)

roof is overlain by a 150-200-m-thick low-velocity zone that may correspond to a fracture zone that hosts the hydrothermal circulation, and the roof itself may be the...

279

Rational control of hydrothermal nanowire synthesis and its applications  

E-Print Network [OSTI]

Hydrothermal nanowire synthesis is a rapidly emerging nanowire discipline that enables low temperature growth and batch process. It has a major impact on the development of novel energy conversion devices, high density ...

Joo, Jaebum

2010-01-01T23:59:59.000Z

280

Whole Algae Hydrothermal Liquefaction: 2014 State of Technology  

SciTech Connect (OSTI)

This report describes the base case yields and operating conditions for converting whole microalgae via hydrothermal liquefaction and upgrading to liquid fuels. This serves as the basis against which future technical improvements will be measured.

Jones, Susanne B.; Zhu, Yunhua; Snowden-Swan, Lesley J.; Anderson, Daniel; Hallen, Richard T.; Schmidt, Andrew J.; Albrecht, Karl O.; Elliott, Douglas C.

2014-07-30T23:59:59.000Z

Note: This page contains sample records for the topic "hydrothermal hot water" 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

Controls on the geomorphic expression and evolution of gryphons, pools, and caldera features at hydrothermal seeps in the Salton Sea Geothermal Field,  

E-Print Network [OSTI]

at hydrothermal seeps in the Salton Sea Geothermal Field, southern California Nathan Onderdonk a, , Adriano In the Salton Sea Geothermal Field in southern California, expulsion of gas, sediment and water creates unique.1. Regional setting The Salton Sea Geothermal Field (SSGF) is an area of high heat flow located

Svensen, Henrik

282

Geochemistry and stable isotope constraints on high-temperature activity from sediment cores of the Saldanha hydrothermal field  

E-Print Network [OSTI]

hydrothermal processes occur, including reactions of the hydrothermal fluids with mafic and ultramafic rocks of seafloor hydrothermal processes. The focus on these ultramafic-hosted hydrothermal systems has increased, i of the Saldanha hydrothermal field Á.S. Dias a, ,1 , G.L. Früh-Green b,1 , S.M. Bernasconi c,1 , F.J.A.S. Barriga

Gilli, Adrian

283

Energy-efficient water heating  

SciTech Connect (OSTI)

This fact sheet describes how to reduce the amount of hot water used in faucets and showers, automatic dishwashers, and washing machines; how to increase water-heating system efficiency by lowering the water heater thermostat, installing a timer and heat traps, and insulating hot water pipes and the storage tank; and how to use off-peak power to heat water. A resource list for further information is included.

NONE

1995-01-01T23:59:59.000Z

284

Pilgrim Hot Springs, Alaska  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Careerlumens_placard-green.epsEnergy1.pdfMarket | DepartmentPhotoelectrochemicalInan<aPilgrim Hot

285

Hot Plate Station  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun withconfinement plasmas inPortalAll NERSC userNewhighDiff- EnergyHot

286

Idaho_HotSprings  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun withconfinementEtching. | EMSLtheIndustryMitch204 Latitude: N.MikePatHot

287

Geothermal: Hot Documents Search  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky Learning FunNeuTel2011Programmatic ReportsContact UsHelpHot

288

HBLED Hot Testing  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground SourceHBLED Hot Testing 2014 Building Technologies

289

HOT TOPICS: Bridge suicides (http://www.marinij.com/goldengatebridge/ci_25220172/record-number-golden-gate-bridge-suicides-recorded-2013) #MarinDrought (http://www.marinij.com/marinnews/ci_24975029/readers-share-water-saving-ideas-marindroughtt)  

E-Print Network [OSTI]

HOT TOPICS: Bridge suicides (http://www.marinij.com/goldengatebridge/ci_25220172/record-number-golden-gate-bridge://www.marinij.com/goldengatebridge/ci_25217201/golden-gate-bridge-toll-could-increase-by-1) Data center (http://www.marinij.com/data) Traffic://www.marinij.com/marinnews/ci_25202779/marin-robbery-suspect-loses-bid-stop-ij-from) Bridge toll hike (http

California at Berkeley, University of

290

A direct steam heat option for hydrothermal treatment of municipal solid waste  

SciTech Connect (OSTI)

A conceptual process for producing a gasifiable slurry from raw municipal solid waste (MSW) using direct steam heating is outlined. The process is based on the hydrothermal decomposition of the organic matter in the MSW, which requires the MSW to be heated to 300-350{degrees}C in the presence of water. A process model is developed and it is shown, based on preliminary estimates of the hydrothermal reaction stoichiometry, that a process using multiple pressure vessels, which allows recovery of waste heat, results in a process capable of producing a product slurry having a 40 wt % solids content with no waste water emissions. Results for a variety of process options and process parameters are presented. It is shown that the addition of auxiliary feedstock to the gasifier, along with the MSW derived slurry, results in more efficient gasification. It is estimated that 2.6 kmol/s of hydrogen can be produced from 30 kg/s (2600 tonne/day) of MSW and 16 kg/s of heavy oil. Without the additional feedstock, heavy oil in this case, only 0.49 kmol/s of hydrogen would be produced.

Thorsness, C.B.

1995-04-12T23:59:59.000Z

291

Hot Fuel Examination Facility  

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

Working with INL Community Outreach Visitor Information Calendar of Events ATR National Scientific User Facility Center for Advanced Energy Studies Light Water Reactor...

292

An International Survey of Electric Storage Tank Water Heater Efficiency and Standards  

E-Print Network [OSTI]

blankets to electric hot water heaters in South Africa, J.for Residential Water Heaters, Direct Heating Equipment, andfor Residential Water Heaters, Direct Heating Equipment, and

Johnson, Alissa

2013-01-01T23:59:59.000Z

293

Hot hollow cathode gun assembly  

DOE Patents [OSTI]

A hot hollow cathode deposition gun assembly includes a hollow body having a cylindrical outer surface and an end plate for holding an adjustable heat sink, the hot hollow cathode gun, two magnets for steering the plasma from the gun into a crucible on the heat sink, and a shutter for selectively covering and uncovering the crucible.

Zeren, J.D.

1983-11-22T23:59:59.000Z

294

The hydrothermal synthesis and characterization of olivines and related compounds for electrochemical applications  

E-Print Network [OSTI]

The hydrothermal synthesis and characterization of olivines and related compounds at a low cost is also required. Hydrothermal reactions are one such possibility. A number of pure. When conductive carbons are added to the reaction medium, excellent electrochemical behavior

Suzuki, Masatsugu

295

Reproductive traits of pioneer gastropod species colonizing deep-see hydrothermal vents after an eruption  

E-Print Network [OSTI]

The colonization dynamics and life histories of pioneer species are vital components in understanding the early succession of nascent hydrothermal vents. The reproductive ecology of pioneer species at deep-sea hydrothermal ...

Bayer, Skylar (Skylar Rae)

2011-01-01T23:59:59.000Z

296

Fabrication of hollow mesoporous NiO hexagonal microspheres via hydrothermal process in ionic liquid  

SciTech Connect (OSTI)

Highlights: Black-Right-Pointing-Pointer Ni(OH){sub 2} precursors were synthesized in ionic liquid and water solution by hydrothermal method. Black-Right-Pointing-Pointer NiO hollow microspheres were prepared by thermal treatment of Ni(OH){sub 2} precursors. Black-Right-Pointing-Pointer NiO hollow microspheres were self-assembled by mesoporous cubic and hexagonal nanocrystals with high specific surface area. Black-Right-Pointing-Pointer The mesoporous structure is stable at 773 K. Black-Right-Pointing-Pointer The ionic liquid absorbed on the O-terminate surface of the crystals to form hydrogen bond and played key roles in determining the final shape of the NiO novel microstructure. -- Abstract: The novel NiO hexagonal hollow microspheres have been successfully prepared by annealing Ni(OH){sub 2}, which was synthesized via an ionic liquid-assisted hydrothermal method. The samples were characterized by X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), transmission electron microscopy (TEM), N{sub 2} adsorption-desorption and Fourier transform infrared spectrometer (FTIR). The results show that the hollow NiO microstructures are self-organized by mesoporous cubic and hexagonal nanocrystals. The mesoporous structure possessed good thermal stability and high specific surface area (ca. 83 m{sup 2}/g). The ionic liquid 1-butyl-3methylimidazolium tetrafluoroborate ([Bmim][BF{sub 4}]) was found to play a key role in controlling the morphology of NiO microstructures during the hydrothermal process. The special hollow mesoporous architectures will have potential applications in many fields, such as catalysts, absorbents, sensors, drug-delivery carriers, acoustic insulators and supercapacitors.

Zhao, Jinbo, E-mail: zhaojinb@gmail.com [Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, 250061, Jinan (China) [Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, 250061, Jinan (China); School of Materials Science and Engineering, Shandong University, 250061, Jinan (China); Wu, Lili, E-mail: wulili@sdu.edu.cn [Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, 250061, Jinan (China) [Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, 250061, Jinan (China); School of Materials Science and Engineering, Shandong University, 250061, Jinan (China); Zou, Ke, E-mail: zouk2005@163.com [Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, 250061, Jinan (China) [Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, 250061, Jinan (China); School of Materials Science and Engineering, Shandong University, 250061, Jinan (China)

2011-12-15T23:59:59.000Z

297

Report on Produced Water  

Office of Scientific and Technical Information (OSTI)

of the pond, as well as the quality of the produced water. In semiarid regions, hot, dry air moving from a land surface will result in high evaporation rates for smaller ponds. As...

298

Magnetotelluric models of the Roosevelt Hot Springs thermal area, Utah  

SciTech Connect (OSTI)

The Roosevelt Hot Springs (RHS) thermal area, which includes a hotwater-dominated fracture zone prospect, near the eastern margin of the Basin-Range tectonic province, conceivably possesses a whole family of resistivity structures that includes the following: deep hot brine reservoirs, deep-seated partially molten heat sources in the crust or upper mantle that drive the convective system, near-surface hydrothermal alteration zones, wet sedimentary fill in valleys, and a regional, apparently one-dimensional resistivity profile of the crust and upper mantle. This complex resistivity makeup, particular to RHS but probably similar to that at other geothermal areas in the Great Basin, must be treated as being fully three-dimensional (3-D). In an attempt to understand these structures, broadband (10/sup -3/ to 10/sup -2/ Hz) tensor magnetotelluric (MT) data were obtained including apparent resistivities (rho/sub a/), impedance phases (phi) and vertical magnetic field transfer functions for 93 sites in the vicinity of this resource area.

Wannamaker, P.E.; Ward, S.H.; Hohmann, G.W.; Sill, W.R.

1980-09-01T23:59:59.000Z

299

Hot Dry Rock Geothermal Energy Development Program  

SciTech Connect (OSTI)

During Fiscal Year 1987, emphasis in the Hot Dry Rock Geothermal Energy Development Program was on preparations for a Long-Term Flow Test'' of the Phase II'' or Engineering'' hot dry rock energy system at Fenton Hill, New Mexico. A successful 30-day flow test of the system during FY86 indicated that such a system would produce heat at a temperature and rate that could support operation of a commercial electrical power plant. However, it did not answer certain questions basic to the economics of long-term operation, including the rate of depletion of the thermal reservoir, the rate of water loss from the system, and the possibility of operating problems during extended continuous operation. Preparations for a one-year flow test of the system to answer these and more fundamental questions concerning hot dry rock systems were made in FY87: design of the required surface facilities; procurement and installation of some of their components; development and testing of slimline logging tools for use through small-diameter production tubing; research on temperature-sensitive reactive chemical tracers to monitor thermal depletion of the reservoir; and computer simulations of the 30-day test, extended to modeling the planned Long-Term Flow Test. 45 refs., 34 figs., 5 tabs.

Smith, M.C.; Hendron, R.H.; Murphy, H.D.; Wilson, M.G.

1989-12-01T23:59:59.000Z

300

Hydro-thermal flow in a rough fracture EC Contract SES6-CT-2003-502706  

E-Print Network [OSTI]

Hydro-thermal flow in a rough fracture EC Contract SES6-CT-2003-502706 PARTICIPANT ORGANIZATION NAME: CNRS Synthetic 2nd year report Related with Work Package............ HYDRO-THERMAL FLOW in the influence of a realistic geometry of the fracture on its hydro-thermal response. Several studies have

Schmittbuhl, Jean

Note: This page contains sample records for the topic "hydrothermal hot water" 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

Are spatial variations in the diets of hydrothermal fauna linked to local environmental conditions?  

E-Print Network [OSTI]

are considered to be the main energy-acquisition path- ways of carbon fixation in hydrothermal systems (Conway etAre spatial variations in the diets of hydrothermal fauna linked to local environmental conditions conditions Hydrothermal springs Food webs Mid-Atlantic Ridge Lucky Strike (37117.290 N 32116.450 W) a b s t r

Long, Bernard

302

Microbemetal interactions in marine hydrothermal environments James F Holden and Michael W W Adams  

E-Print Network [OSTI]

the scope of carbon cycling in hydrothermal environments. The advent of genome sequences and new molecularMicrobe­metal interactions in marine hydrothermal environments James F Holden and Michael W W Adams? Marine hydrothermal microorganisms respond rapidly to changes in the concentrations and availability

Holden, James F.

303

Sulfur in peridotites and gabbros at Lost City (30N, MAR): Implications for hydrothermal alteration  

E-Print Network [OSTI]

minerals in samples from near the base of hydrothermal carbonate towers at Lost City show d34 S valuesSulfur in peridotites and gabbros at Lost City (30°N, MAR): Implications for hydrothermal of serpentinized peridotites and gabbros beneath the Lost City Hydrothermal Field at the southern face

Gilli, Adrian

304

Seaoor hydrothermal alteration at an Archaean mid-ocean ridge K. KITAJIMA,1  

E-Print Network [OSTI]

-to-boiling point curve for a ¯uid. The carbonation due to high-XCO2 hydrothermal ¯uids occurred near the ridgeSea¯oor hydrothermal alteration at an Archaean mid-ocean ridge K. KITAJIMA,1 S. MARUYAMA,1 S Sciences, Stanford University, Stanford, CA 94305, USA ABSTRACT A hydrothermally metamorphosed

Utsunomiya, Satoshi

305

Simultaneous precipitation of magnesite and lizardite from hydrothermal alteration of olivine under high-carbonate alkalinity  

E-Print Network [OSTI]

alteration High-carbonate alkalinity Magnesite Lizardite Crystal growth Hydrothermal systems The present and carbonation of olivine with relevance in Earth systems (e.g. functioning of hydrothermal fieldsSimultaneous precipitation of magnesite and lizardite from hydrothermal alteration of olivine under

Montes-Hernandez, German

306

Cite this: CrystEngComm, 2013, 15, Calcite formation by hydrothermal carbonation of  

E-Print Network [OSTI]

Cite this: CrystEngComm, 2013, 15, 3392 Calcite formation by hydrothermal carbonation by hydrothermal carbonation of calcium hydroxide by a simulation strategy, in which both the chemical evolution calcite formation by hydrothermal carbonation of portlandite. Calcite is an important ubiquitous mineral

Montes-Hernandez, German

307

Submeter bathymetric mapping of volcanic and hydrothermal features on the East Pacific Rise crest at 9500  

E-Print Network [OSTI]

of bathymetric changes associated with active volcanic, hydrothermal and tectonic processes. Components: 15Submeter bathymetric mapping of volcanic and hydrothermal features on the East Pacific Rise crest to produce submeter resolution bathymetric maps of five hydrothermal vent areas at the East Pacific Rise (EPR

Whitcomb, Louis L.

308

Controls on Martian hydrothermal systems: Application to valley network and magnetic anomaly formation  

E-Print Network [OSTI]

circulation can quantify limits to the role of hydrothermal activity in Martian crustal processes. We present the viability of hydrothermal circulation as the primary process responsible for the broad spatial correlationControls on Martian hydrothermal systems: Application to valley network and magnetic anomaly

Harrison, Keith

309

Ultrafast Microwave Hydrothermal Synthesis of BiFeO3 Nanoplates Riad Nechache,  

E-Print Network [OSTI]

hydrothermal processes while requiring significantly less time and energy. In addition, we show that microwaveUltrafast Microwave Hydrothermal Synthesis of BiFeO3 Nanoplates Shun Li, Riad Nechache,§ Ivan and very rapid (1­2 min) microwave-assisted hydrothermal approach. We show that the microwave treatment

310

Geological Society of America Magmatic-hydrothermal leaching and origin of late to post-tectonic  

E-Print Network [OSTI]

, Ottawa, Ontario K1A 0E8, Canada ABSTRACT Magmatic-hydrothermal processes produced significant metasomatic near the margins of the granite plu- ton. Later low-temperature hydrothermal processes mobilized silica High-temperature hydrothermal processes have long been recognized within the Adirondack Highlands

Soja, Constance M.

311

Physical response of mid-ocean ridge hydrothermal systems to local earthquakes  

E-Print Network [OSTI]

: Heat flow (benthic) and hydrothermal processes; 3035 Marine Geology and Geophysics: Midocean ridge processes; 8135 Tectonophysics: Hydrothermal systems (8424). Received 23 January 2004; Revised 9 July 2004Physical response of mid-ocean ridge hydrothermal systems to local earthquakes William S. D

Wilcock, William

312

Hydrothermal synthesis, off-axis electron holography and magnetic properties of Fe3O4 nanoparticles  

E-Print Network [OSTI]

-sized Fe3O4 have been prepared by various methods such as sol­ gel processing, hydrothermal synthesisHydrothermal synthesis, off-axis electron holography and magnetic properties of Fe3O4 nanoparticles Jülich, Germany. Abstract. The hydrothermal synthesis of Fe3O4 nanoparticles (NPs) (

Dunin-Borkowski, Rafal E.

313

STUDY OF THE EFFECT OF HYDROTHERMAL PROCESS CONDITIONS ON PASTA QUALITY  

E-Print Network [OSTI]

STUDY OF THE EFFECT OF HYDROTHERMAL PROCESS CONDITIONS ON PASTA QUALITY Authors: Z. Maache Science 41, 3 (2005) 267-275" DOI : 10.1016/j.jcs.2004.10.008 #12;Abstract. Effect of hydrothermal. The Instantaneous Controlled Pressure Drop (DIC) treatment is defined as a hydrothermal treatment that involves

Paris-Sud XI, Université de

314

Permeability changes due to mineral diagenesis in fractured crust: implications for hydrothermal circulation at  

E-Print Network [OSTI]

The hydrothermal processes at ridge crests have been extensively studied during the last two decades. NeverthelessPermeability changes due to mineral diagenesis in fractured crust: implications for hydrothermal, the reasons why hydrothermal fields are only occasionally found along some ridge segments remain a matter

Manga, Michael

315

Quantification of thermophilic archaea and bacteria in a Nevada hot spring using fluorescent in situ hybridization  

E-Print Network [OSTI]

in situ hybridization Abstract Previous studies of high temperature hot springs in Yellowstone National temperatures. The cells, which were concentrated from 300 liters of hot spring water through tangential flow dominate in high-temperature environments such as Yellowstone National Park. However, our study indicates

Walker, Lawrence R.

316

Exploration for Hot Dry Rock geothermal resources in the Midcontinent USA. Volume 1. Introduction, geologic overview, and data acquisition and evaluation  

SciTech Connect (OSTI)

The Midcontinent of North America is commonly characterized as a stable cratonic area which has undergone only slow, broad vertical movements over the past several hundreds of millions of years. This tectonically stable crust is an unfertile area for hot dry rock (HDR) exploration. However, recent geophysical and geological studies provide evidence for modest contemporary tectonic activity in limited areas within the continent and, therefore, the possibility of localized thermal anomalies which may serve as sites for HDR exploration. HDR, as an energy resource in the Midcontinent, is particularly appealing because of the high population density and the demand upon conventional energy sources. Five generalized models of exploration targets for possible Midcontinent HDR sites are identified: (1) radiogenic heat sources, (2) conductivity-enhanced normal geothermal gradients, (3) residual magnetic heat, (4) sub-upper crustal sources, and (5) hydrothermal generated thermal gradients. Three potential sources of HDR, each covering approximately a 2/sup 0/ x 2/sup 0/ area, were identified and subjected to preliminary evaluation. In the Mississippi Embayment test site, lateral thermal conductivity variations and subcrustal heat sources may be involved in producing abnormally high subsurface temperatures. Studies indicate that enhanced temperatures are associated primarily with basement rift features where vertical displacement of aquifers and faults cause the upward migration of hot waters leading to anomalously high local upper crustal temperatures. The Western Nebraska test site is a potential low temperature HDR source also related, at least in part, to groundwater movement. The Southeast Michigan test site was selected for study because of the possible presence of radiogenic plutons overlain by a thickened sedimentary blanket.

Hinze, W.J.; Braile, L.W.; von Frese, R.R.B.; Lidiak, E.G.; Denison, R.E.; Keller, G.R.; Roy, R.F.; Swanberg, C.A.; Aiken, C.L.V.; Morgan, P.

1986-02-01T23:59:59.000Z

317

Drain-Water Heat Recovery | Department of Energy  

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

works well with all types of water heaters, especially with demand and solar water heaters. Drain-water heat exchangers can recover heat from the hot water used in showers,...

318

The decay of hot nuclei  

SciTech Connect (OSTI)

The formation of hot compound nuclei in intermediate-energy heavy ion reactions is discussed. The statistical decay of such compound nuclei is responsible for the abundant emission of complex fragments and high energy gamma rays. 43 refs., 23 figs.

Moretto, L.G.; Wozniak, G.J.

1988-11-01T23:59:59.000Z

319

Hot carrier diffusion in graphene  

E-Print Network [OSTI]

We report an optical study of charge transport in graphene. Diffusion of hot carriers in epitaxial graphene and reduced graphene oxide samples are studied using an ultrafast pump-probe technique with a high spatial resolution. Spatiotemporal...

Ruzicka, Brian Andrew; Wang, Shuai; Werake, Lalani Kumari; Weintrub, Ben; Loh, Kian Ping; Zhao, Hui

2010-11-01T23:59:59.000Z

320

Interconnected hydro-thermal systems Models, methods, and applications  

E-Print Network [OSTI]

Interconnected hydro-thermal systems Models, methods, and applications Magnus Hindsberger Kgs. Lyngby 2003 IMM-PHD-2003-112 Interconnected hydro-thermalsystems #12;Technical University of Denmark 45882673 reception@imm.dtu.dk www.imm.dtu.dk IMM-PHD-2003-112 ISSN 0909-3192 #12;Interconnected hydro

Note: This page contains sample records for the topic "hydrothermal hot water" 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

Hydrothermal Dolomites in the Early Albian (Cretaceous) Platform Carbonates  

E-Print Network [OSTI]

Hydrothermal Dolomites in the Early Albian (Cretaceous) Platform Carbonates (NW Spain): Nature carbonates de la plate-forme albienne précoce (Crétacé; NO de l'Espagne): nature et origine des dolomies et trouvent dans les carbonates albiens, déposés dans le bassin Basque-Cantabrique suite à une subsidence

Paris-Sud XI, Université de

322

The Ranero Hydrothermal Dolomites (Albian, Karrantza Valley, Northwest Spain)  

E-Print Network [OSTI]

The Ranero Hydrothermal Dolomites (Albian, Karrantza Valley, Northwest Spain): Implications Recherche Développement, Carbonate Sedimentology Group, avenue Larribau s/n, 64018 Pau Cedex - France e'Espagne) sont présentées dans cette étude. Les corps dolomitiques sont encaissés dans des carbonates de

Paris-Sud XI, Université de

323

POWER SCHEDULING IN A HYDRO-THERMAL SYSTEM UNDER UNCERTAINTY  

E-Print Network [OSTI]

POWER SCHEDULING IN A HYDRO-THERMAL SYSTEM UNDER UNCERTAINTY C.C. Car e1, M.P. Nowak2, W. Romisch2 Forschungsgemeinschaft. leads to a tremendous increase in the complex- ity of the traditional power optimization mod- els-burning) thermal units, pumped-storage hydro plants and delivery con- tracts and describe an optimization model

Rmisch, Werner

324

POWER SCHEDULING IN A HYDROTHERMAL SYSTEM UNDER UNCERTAINTY  

E-Print Network [OSTI]

POWER SCHEDULING IN A HYDROTHERMAL SYSTEM UNDER UNCERTAINTY C.C. Care 1 , M.P. Nowak 2 , W. R in the complex ity of the traditional power optimization mod els. The remedy we propose is decomposition whichstorage hydro plants and delivery con tracts and describe an optimization model for its leastcost operation

Rmisch, Werner

325

Hydro-Thermal Scheduling (HTS) 1.0 Introduction  

E-Print Network [OSTI]

1 Hydro-Thermal Scheduling (HTS) 1.0 Introduction From an overall systems view, the single most, relative to that of thermal plants, are very small. There are three basic types of hydroelectric plants;2 Pump-storage This kind of hydro plant is a specialized reservoir-type plant which has capability to act

McCalley, James D.

326

aeo2010r.d111809a",2007,2008,2009,2010,2011,2012,2013,2014,2015...  

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

hydrothermal resources only (hot water and steam)." ," 3 Includes municipal waste, landfill gas, and municipal sewage sludge. Incremental growth is assumed" ,"to be for landfill...

327

CREDIT:G.NOLET/PRINCETONUNIVERSITY he workings of the hot interiors of the  

E-Print Network [OSTI]

of the solar system are most dramatically expressed by the size and arrangement of their volcanoes. Most down in hydrous minerals. The water, when re- leased by metamorphism, causes already hot rock material

Manga, Michael

328

Coping with Hot Work Environments  

E-Print Network [OSTI]

exposed to these conditions. A hot work environment can impair safety and health. Both workers and their employers are responsi- ble for taking steps to prevent heat stress in the work- place. How Your Body Handles Heat Humans are warm-blooded, which... evaporation. Wiping sweat from the skin with a cloth also prevents cooling from evaporation. In hot, humid conditions, hard work becomes harder. The sweat glands release moisture and essential David W. Smith, Extension Safety Program The Texas A...

Smith, David

2005-04-28T23:59:59.000Z

329

Energy and Economic Impacts of U.S. Federal Energy and Water Conservation Standards Adopted From 1987 Through 2011  

E-Print Network [OSTI]

conditioners and heat pumps, and water heaters We modifiedConditioners and Heat Pumps NAECA 1987 Water Heaters NAECAConditioners and Heat Pumps EPACT 1992 Water Heaters, Hot

Meyers, Stephen

2013-01-01T23:59:59.000Z

330

Energy and Economic Impacts of U.S. Federal Energy and Water Conservation Standards Adopted From 1987 Through 2010  

E-Print Network [OSTI]

conditioners and heat pumps, and water heaters We modifiedConditioning Heat Pumps NAECA 1987 Water Heaters NAECA 1987Conditioners and Heat Pumps EPACT 1992 Water Heaters, Hot

Meyers, Stephen

2013-01-01T23:59:59.000Z

331

Energy and Economic Impacts of U.S. Federal Energy and Water Conservation Standards Adopted From 1987 through 2012  

E-Print Network [OSTI]

conditioners and heat pumps, and water heaters We modifiedConditioners and Heat Pumps NAECA 1987 Water Heaters NAECAConditioners and Heat Pumps EPACT 1992 Water Heaters, Hot

Meyers, Stephen

2013-01-01T23:59:59.000Z

332

Hot Pot Detail - Evidence of Quaternary Faulting  

SciTech Connect (OSTI)

Compilation of published data, field observations and photo interpretation relevant to Quaternary faulting at Hot Pot.

Lane, Michael

2013-06-27T23:59:59.000Z

333

Hot Pot Detail - Evidence of Quaternary Faulting  

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

Compilation of published data, field observations and photo interpretation relevant to Quaternary faulting at Hot Pot.

Lane, Michael

334

Temporal Relations of Volcanism and Hydrothermal Systems in Two...  

Open Energy Info (EERE)

associated with current hot-spring activity and the youngest pulses of volcanism. > Oxygen-isotope data from illitesmectite clays in the Cochiti district are zonally...

335

Hot Beverages Cold Beverages  

E-Print Network [OSTI]

Juices $3.19 Vitamin Water $1.79 Java Tree Iced Coffee $2.59 Milk, 2% or Low Fat $1.39 20 oz. Coke Products $1.39 Energy Drinks Rockstar $2.39 Full Throttle $2.39 Red Bull Energy Drink $2.39 Rejuvenation in a sustainable way. 12 oz. 16 oz. 20 oz. House Blend $1.69 $1.79 $1.90 French Roast $1.69 $1.79 $1.90 Decaf Dark

New Hampshire, University of

336

DEPOSITIONAL FACIES AND AQUEOUS-SOLID GEOCHEMISTRY OF TRAVERTINE-DEPOSITING HOT SPRINGS (ANGEL TERRACE, MAMMOTH HOT SPRINGS, YELLOWSTONE NATIONAL PARK, U.S.A.)  

E-Print Network [OSTI]

include hot spring travertine (precipitates from high-temperature springs, also called carbonate sinters spring water in the higher-temperature (-50-73°C) depositional facies. Conversely, travertine from waters in low- to high- * Present Address: Department of Geology, Arizona State University, Box

Farmer, Jack D.

337

Hot conditioning equipment conceptual design report  

SciTech Connect (OSTI)

This report documents the conceptual design of the Hot Conditioning System Equipment. The Hot conditioning System will consist of two separate designs: the Hot Conditioning System Equipment; and the Hot Conditioning System Annex. The Hot Conditioning System Equipment Design includes the equipment such as ovens, vacuum pumps, inert gas delivery systems, etc.necessary to condition spent nuclear fuel currently in storage in the K Basins of the Hanford Site. The Hot Conditioning System Annex consists of the facility of house the Hot Conditioning System. The Hot Conditioning System will be housed in an annex to the Canister Storage Building. The Hot Conditioning System will consist of pits in the floor which contain ovens in which the spent nuclear will be conditioned prior to interim storage.

Bradshaw, F.W., Westinghouse Hanford

1996-08-06T23:59:59.000Z

338

Hot Gas Halos in Galaxies  

SciTech Connect (OSTI)

We use Chandra and XMM-Newton to study how the hot gas content in early-type galaxies varies with environment. We find that the L{sub X}-L{sub K} relationship is steeper for field galaxies than for comparable galaxies in groups and clusters. This suggests that internal processes such as supernovae driven winds or AGN feedback may expel hot gas from low mass field galaxies. Such mechanisms are less effective in groups and clusters where the presence of an intragroup or intracluster medium may confine outflowing material.

Mulchaey, John S. [Carnegie Observatories (United States); Jeltema, Tesla E. [UCO/Lick Observatories (United States)

2010-06-08T23:59:59.000Z

339

Colorado's hydrothermal resource base---an assessment | Open Energy  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectricEnergyCTBarreisVolcanicPowerRaft RiverInformation hydrothermal

340

Property:PotentialGeothermalHydrothermalCapacity | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy ResourcesLoadingPenobscotInformation MaxPotentialGeothermalHydrothermalCapacity Jump to: navigation,

Note: This page contains sample records for the topic "hydrothermal hot water" 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

Property:PotentialGeothermalHydrothermalGeneration | Open Energy  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy ResourcesLoadingPenobscotInformation MaxPotentialGeothermalHydrothermalCapacity Jump to:

342

Hydrothermal processing of Hanford tank wastes: Process modeling and control  

SciTech Connect (OSTI)

In the Los Alamos National Laboratory (LANL) hydrothermal process, waste streams are first pressurized and heated as they pass through a continuous flow tubular reactor vessel. The waste is maintained at reaction temperature of 300--550 C where organic destruction and sludge reformation occur. This report documents LANL activities in process modeling and control undertaken in FY94 to support hydrothermal process development. Key issues discussed include non-ideal flow patterns (e.g. axial dispersion) and their effect on reactor performance, the use and interpretation of inert tracer experiments, and the use of computational fluid mechanics to evaluate novel hydrothermal reactor designs. In addition, the effects of axial dispersion (and simplifications to rate expressions) on the estimated kinetic parameters are explored by non-linear regression to experimental data. Safety-related calculations are reported which estimate the explosion limits of effluent gases and the fate of hydrogen as it passes through the reactor. Development and numerical solution of a generalized one-dimensional mathematical model is also summarized. The difficulties encountered in using commercially available software to correlate the behavior of high temperature, high pressure aqueous electrolyte mixtures are summarized. Finally, details of the control system and experiments conducted to empirically determine the system response are reported.

Currier, R.P. [comp.

1994-10-01T23:59:59.000Z

343

SMUD- Solar Water Heater Rebate Program  

Broader source: Energy.gov [DOE]

The Sacramento Municipal Utility District's (SMUD) Solar Domestic Hot Water Program provides rebates and/or loan financing to customers who install solar water heating systems. The amount of the...

344

1-Dodecane-sulfonic-acid-sodium-salt(LAS) assisted hydrothermal synthesis of Cd{sub x}Zn{sub 1-x}S solid solution as efficient photocatalysts under visible light irradiation  

SciTech Connect (OSTI)

With anionic surfactant LAS assisted, series of zinc cadmium sulfide semiconductor photocatalysts were synthesized by hydrothermal method. These products were characterized by X-ray diffraction (XRD), UV-Vis absorption spectra (UV-Vis) and scanning electron microscopy (FESEM). The photocatalytic activities of as-prepared samples were evaluated by photocatalytic hydrogen production from water under visible-light irradiation. The best synthesis parameters are: Composition 0.9:0.1 (Cd:Zn molar ratio), Temperature 160 deg. C, Hydrothermal Time 48 Hour, LAS Concentration 1.7 mmol/L, the maximum visible-light-catalytic hydrogen production rate is 161.25 {mu}mol/h (lambda>430 nm) which is higher than those of by coprecipitation method. The experiment results indicate that surfactant assisted hydrothermal method is an effective way to get highly active CdZnS solid solution photocatalyst.

Jia, B.; Guo, L. J. [State Key Laboratory of Multiphase Flow in power Engineering, Xi'an Jiaotong University (China)

2010-03-01T23:59:59.000Z

345

E-Print Network 3.0 - assisted hydrothermal synthesis Sample...  

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

Collection: Physics 53 Hydrothermally grown nanostructured WO films and their electrochromic characteristics Summary: -doped tin oxide glass substrates by a simple and...

346

Utilization of aqueous product generated by hydrothermal carbonization of waste biomass.  

E-Print Network [OSTI]

??Hydrothermal carbonization (HTC) is a thermochemical treatment process that allows for the conversion of relatively dilute biomass slurries into value added products which are hydrochar (more)

Vozhdayev, Georgiy Vladimirovich

2014-01-01T23:59:59.000Z

347

E-Print Network 3.0 - artificial hydrothermal system Sample Search...  

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

of oxidized, S-rich mafic magmas for giant Cu mineralization: Evidence from Pinatubo, Bingham Canyon and El Teniente Summary: and overlying acid-sulphate hydrothermal systems....

348

Metatranscriptomics reveal differences in in situ energy and nitrogen metabolism among hydrothermal vent snail symbionts  

E-Print Network [OSTI]

Despite the ubiquity of chemoautotrophic symbioses at hydrothermal vents, our understanding of the influence of environmental chemistry on symbiont metabolism is limited. Transcriptomic analyses are useful for linking ...

Sanders, J. G.

349

Hydrothermal energy extraction, Auburn, New York: Final report: Volume 2, Chapters 6-10  

SciTech Connect (OSTI)

This paper discusses a hydrothermal energy extraction system in detail. General topics covered are: Reservoir circulation loop; HVAC buffer loop; and automatic temperature control system. (LSP)

Castor, T.P.

1988-03-01T23:59:59.000Z

350

Chemical and light-stable isotope characteristics of waters from...  

Open Energy Info (EERE)

water; (2) there is a single deep hot water, and the range of chloride concentrations is produced by the water passing through a zone of highly soluble materials (most likely in...

351

Rheological study of comingled biomass and coal slurries with hydrothermal pretreatment  

SciTech Connect (OSTI)

Gasification of comingled biomass and coal feedstock is an effective means of reducing the net life cycle greenhouse gas emissions in the coal gasification process while maintaining its inherent benefits of abundance and high-energy density. However, feeding a comingled biomass and coal feedstock into a pressurized gasification reactor poses a technical problem. Conventional dry feeding systems, such as lock hoppers and pressurized pneumatic transport, are complex and operationally expensive. A slurry formation of comingled biomass and coal feedstock can be easily fed into the gasification reactor but, in normal conditions, only allows for a small portion of biomass in the mixture. This is a consequence of the hydroscopic and hydrophilic nature of the biomass. The College of Engineering Center for Environmental Research and Technology (CE-CERT) at the University of California, Riverside, has developed a process producing high solid content biomass-water slurry using a hydrothermal pretreatment process. In this paper, the systematic investigation of the rheological properties (e.g., shear rate, shear stress, and viscosity) of coal-water slurries, biomass-water slurries, and comingled biomass and coal-water slurries is reported. The solid particle size distribution in the slurry and the initial solid/water ratio were investigated to determine the impact on shear rate and viscosity. This was determined using a rotational rheometer. The experimental results show that larger particle size offers better pumpability. The presence of a high percentage of biomass in solid form significantly decreases slurry pumpability. It is also shown that the solid loading of the biomass-water slurry can be increased to approximately 35 wt % with viscosity of less than 0.7 Pa.s after the pretreatment process. The solid loading increased to approximately 45 wt % when the biomass is comingled with coal. 18 refs., 7 figs., 3 tabs.

Wei He; Chan S. Park; Joseph M. Norbeck [University of California, Riverside, CA (United States). Bourns College of Engineering Center for Environmental Research and Technology

2009-09-15T23:59:59.000Z

352

Statistical mechanics of hot dense matter  

SciTech Connect (OSTI)

Research on properties of hot dense matter produced with high intensity laser radiation is described in a brief informal review.

More, R.

1986-10-01T23:59:59.000Z

353

Durable zinc ferrite sorbent pellets for hot coal gas desulfurization  

DOE Patents [OSTI]

Durable, porous sulfur sorbents useful in removing hydrogen sulfide from hot coal gas are prepared by water pelletizing a mixture of fine zinc oxide and fine iron oxide with inorganic and organic binders and small amounts of activators such as sodium carbonate and molybdenite; the pellets are dried and then indurated at a high temperature, e.g., 1800.degree. C., for a time sufficient to produce crush-resistant pellets.

Jha, Mahesh C. (Arvada, CO); Blandon, Antonio E. (Thornton, CO); Hepworth, Malcolm T. (Edina, MN)

1988-01-01T23:59:59.000Z

354

Dynamics of precipitation pattern formation at geothermal hot springs  

E-Print Network [OSTI]

We formulate and model the dynamics of spatial patterns arising during the precipitation of calcium carbonate from a supersaturated shallow water flow. The model describes the formation of travertine deposits at geothermal hot springs and rimstone dams of calcite in caves. We find explicit solutions for travertine domes at low flow rates, identify the linear instabilities which generate dam and pond formation on sloped substrates, and present simulations of statistical landscape evolution.

Nigel Goldenfeld; Pak Yuen Chan; John Veysey

2006-01-13T23:59:59.000Z

355

Toolbox Safety Talk Hot Work Safety Procedures  

E-Print Network [OSTI]

Toolbox Safety Talk Hot Work Safety Procedures Environmental Health & Safety Facilities Safety-in sheet to Environmental Health & Safety for recordkeeping. "Hot Work" is defined as any temporary WORK Obtain a hot work permit from your supervisor or safety rep. Ensure fire/smoke detection

Pawlowski, Wojtek

356

Mechanical and transport properties of rocks at high temperatures and pressures. Task II: fracture permeability of crystalline rocks as a function of temperature, pressure, and hydrothermal alteration  

SciTech Connect (OSTI)

The primary objective is to measure and understand the variation of the fracture permeability of quartzite subjected to hydrothermal conditions. Pore fluids will consist of distilled water and aqueous Na/sub 2/CO/sub 3/ solutions at temperatures to 250/sup 0/C, fluid pressures to 20 MPa and effective normal stresses to 70 MPa. Fluid flow rates will be controllable to rates at least as small as 0.2 ml/day (approx. 4 fracture volumes). Experiments are designed to assess what role, if any, pressure solution may play at time scales of those of the experiments (less than or equal to 2 weeks). Secondary objectives are: (1) continue simulated fracture studies, incorporating inelastic deformation into model and characterize the nature of inelastic deformation occurring on loaded tensile fractures in quartzite; (2) continue dissolution experiment, with emphasis on dissolution modification of tensile fracture surfaces on quartzite; and (3) study natural fractures in a quartzite exhibiting hydrothermal dissolution features.

Not Available

1981-01-01T23:59:59.000Z

357

Wiang Haeng coal-water fuel preparation and gasification, Thailand - task 39  

SciTech Connect (OSTI)

In response to an inquiry by the Department of Mineral Resources (DMR) in Thailand, the Energy & Environmental Research Center (EERC) prepared a four-task program to assess the responsiveness of Wiang Haeng coal to the temperature and pressure conditions of hot-water drying (HWD). The results indicate that HWD made several improvements in the coal, notably increases (HWD). The results indicate that HWD made several improvements in the coal, notably increases in heating value and carbon content and reductions in equilibrium moisture and oxygen content. The equilibrium moisture content decreased from 37.4 wt% for the raw coal to about 20 wt% for the HWD coals. The energy density for a pumpable coal-water fuel indicates an increase from 4450 to 6650 Btu/lb by hydrothermal treatment. Raw and HWD coal were then gasified at various mild gasification conditions of 700{degrees}C and 30 psig. The tests indicated that the coal is probably similar to other low-rank coals, will produce high levels of hydrogen, and be fairly reactive.

Anderson, C.M.; Musich, M.A.; Young, B.C. [and others

1996-07-01T23:59:59.000Z

358

The origin of methanethiol in midocean ridge hydrothermal fluids  

E-Print Network [OSTI]

Simple alkyl thiols such as methanethiol (CH[subscript 3]SH) are widely speculated to form in seafloor hot spring fluids. Putative CH[subscript 3]SH synthesis by abiotic (nonbiological) reduction of inorganic carbon ...

Reeves, Eoghan

359

Water-heating dehumidifier  

DOE Patents [OSTI]

A water-heating dehumidifier includes a refrigerant loop including a compressor, at least one condenser, an expansion device and an evaporator including an evaporator fan. The condenser includes a water inlet and a water outlet for flowing water therethrough or proximate thereto, or is affixed to the tank or immersed into the tank to effect water heating without flowing water. The immersed condenser design includes a self-insulated capillary tube expansion device for simplicity and high efficiency. In a water heating mode air is drawn by the evaporator fan across the evaporator to produce cooled and dehumidified air and heat taken from the air is absorbed by the refrigerant at the evaporator and is pumped to the condenser, where water is heated. When the tank of water heater is full of hot water or a humidistat set point is reached, the water-heating dehumidifier can switch to run as a dehumidifier.

Tomlinson, John J. (Knoxville, TN)

2006-04-18T23:59:59.000Z

360

2000 Astronomy Department, University of Texas at Austin Full Of Hot Air?  

E-Print Network [OSTI]

©2000 Astronomy Department, University of Texas at Austin Full Of Hot Air? Introduction Light has standing by a pool, the medium is air. If you are looking at the Moon from under water after you jump into the pool, the mediums are both air and water. The Moon would appear dif- ferent from underwater because

Hemenway, Mary Kay

Note: This page contains sample records for the topic "hydrothermal hot water" 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

Partitioning of bacterial communities between travertine depositional facies at Mammoth Hot  

E-Print Network [OSTI]

flow of spring water from the high-temperature to low-temperature facies. These results suggest of depositional facies models that correlate (1) the depth, velocity, temperature, and chemistry of waterPartitioning of bacterial communities between travertine depositional facies at Mammoth Hot Springs

Fouke, Bruce W.

362

Fluid Flow In The Resurgent Dome Of Long Valley Caldera- Implications...  

Open Energy Info (EERE)

caldera was cooled to normal thermal conditions by vigorous hydrothermal activity in the past, and that a present-day hot water flow system is responsible for local hot anomalies,...

363

Impacts of Water Quality on Residential Water Heating Equipment  

SciTech Connect (OSTI)

Water heating is a ubiquitous energy use in all residential housing, accounting for 17.7% of residential energy use (EIA 2012). Today, there are many efficient water heating options available for every fuel type, from electric and gas to more unconventional fuel types like propane, solar, and fuel oil. Which water heating option is the best choice for a given household will depend on a number of factors, including average daily hot water use (total gallons per day), hot water draw patterns (close together or spread out), the hot water distribution system (compact or distributed), installation constraints (such as space, electrical service, or venting accommodations) and fuel-type availability and cost. While in general more efficient water heaters are more expensive than conventional water heating technologies, the savings in energy use and, thus, utility bills can recoup the additional upfront investment and make an efficient water heater a good investment over time in most situations, although the specific payback period for a given installation will vary widely. However, the expected lifetime of a water heater in a given installation can dramatically influence the cost effectiveness and savings potential of a water heater and should be considered, along with water use characteristics, fuel availability and cost, and specific home characteristics when selecting the optimum water heating equipment for a particular installation. This report provides recommendations for selecting and maintaining water heating equipment based on local water quality characteristics.

Widder, Sarah H.; Baechler, Michael C.

2013-11-01T23:59:59.000Z

364

How to Make Appliance Standards Work: Improving Energy and Water Efficiency Test Procedures  

E-Print Network [OSTI]

efficiency of commercial water heaters and hot water supplyheat pump water heaters). http://edocket.access.gpo.gov/2004/CSA 4.3- 2004 Gas Water Heaters - Volume III, Storage

Lutz, Jim

2012-01-01T23:59:59.000Z

365

IEEE TRANSACTIONS ON POWER SYSTEMS 1 Nash-Cournot Equilibria in Hydrothermal  

E-Print Network [OSTI]

IEEE TRANSACTIONS ON POWER SYSTEMS 1 Nash-Cournot Equilibria in Hydrothermal Electricity Markets the market clearance prices within a hydrothermal power exchange market that incorporates network constraints. An analysis is made of the degree of market power exerted by the various agents. The Nash-Cournot equilibrium

Catholic University of Chile (Universidad Católica de Chile)

366

HYDROTHERMAL ACTIVITY AND CARBON-DIOXIDE DISCHARGE AT SHRUB AND UPPER KLAWASI MUD VOLCANOES,  

E-Print Network [OSTI]

HYDROTHERMAL ACTIVITY AND CARBON-DIOXIDE DISCHARGE AT SHRUB AND UPPER KLAWASI MUD VOLCANOES and July 1973 at Shrub and Upper Klawasi mud volcanoes 8 ii #12;HYDROTHERMAL ACTIVITY AND CARBON. Map of diffuse carbon dioxide flow from soils near the summit of Shrub mud volcano 9 TABLES 1

367

Involvement of Intermediate Sulfur Species in Biological Reduction of Elemental Sulfur under Acidic, Hydrothermal Conditions  

E-Print Network [OSTI]

, Hydrothermal Conditions Eric S. Boyd,a Gregory K. Druschelb Department of Chemistry and Biochemistry, Montana in size, a rate which was influenced by the pH of the me- dium and the presence of organic carbon. Thus, S to serve as a growth-promoting TEA for A. sulfurireducens. Terrestrial and hydrothermal spring source

Ahmad, Sajjad

368

The discovery of chemoautotrophic symbionts in the hydrothermal vent tubeworm Riftia pachyptila expanded our  

E-Print Network [OSTI]

The discovery of chemoautotrophic symbionts in the hydrothermal vent tubeworm Riftia pachyptila, the bacteria fix inorganic carbon and oxidize reduced inorganic substrates, such as reduced sulfur compounds at hydrothermal vents, hydrocarbon seeps and other chemically reduced deep-sea environments, exhibit a suite

Girguis, Peter R.

369

Hydrothermal dolomites in SW Sardinia (Italy): evidence for a widespread late-Variscan fluid flow event  

E-Print Network [OSTI]

Hydrothermal dolomites in SW Sardinia (Italy): evidence for a widespread late-Variscan fluid flow, the Cambrian carbonates underwent ductile deformation and greenschist facies metamorphism. The same is true-temperature metamorphic rocks within the overlying nappes. It is assumed that a late-Variscan hydrothermal event, which

Boni, Maria

370

Dynamics of hydrothermal seeps from the Salton Sea geothermal system (California, USA) constrained by temperature monitoring  

E-Print Network [OSTI]

Dynamics of hydrothermal seeps from the Salton Sea geothermal system (California, USA) constrained-, and petroleum-bearing seeps are part of the Salton Sea geothermal system (SSGS) in southern California. Carbon likely reflect a combination of hydrothermal flux variations from the SSGS and the local temporal changes

Svensen, Henrik

371

Linking Hydrothermal Geochemistry to Organismal Physiology: Physiological Versatility in Riftia pachyptila  

E-Print Network [OSTI]

Linking Hydrothermal Geochemistry to Organismal Physiology: Physiological Versatility in Riftia and oxygen to generate energy for carbon fixation, and the symbiont's nitrate reduction to ammonia for energy in the EPR and the Guaymas basin, a sedimented, hydrothermal vent field. We observed marked differences

Girguis, Peter R.

372

Sources of organic nitrogen at the serpentinite-hosted Lost City hydrothermal field  

E-Print Network [OSTI]

Sources of organic nitrogen at the serpentinite-hosted Lost City hydrothermal field S. Q. LANG,1 G environment, the Lost City hydrothermal field (30°N, Mid-Atlantic Ridge). Total hydrolizable amino acid (THAA carbon (2.5­15.1%). The amino acid distributions, and the relative concentrations of these compounds

Gilli, Adrian

373

Carbon geochemistry of serpentinites in the Lost City Hydrothermal System (30N, MAR)  

E-Print Network [OSTI]

Carbon geochemistry of serpentinites in the Lost City Hydrothermal System (30°N, MAR) Ade May 2008 Abstract The carbon geochemistry of serpentinized peridotites and gabbroic rocks recovered at the Lost City Hydrothermal Field (LCHF) and drilled at IODP Hole 1309D at the central dome of the Atlantis

Gilli, Adrian

374

Introduction The deep-sea hydrothermal vent communities were discovered in  

E-Print Network [OSTI]

312 Introduction The deep-sea hydrothermal vent communities were discovered in 1977 and immediately (a monospecific genus) must have high rates of carbon fixation to support their growth. The physiological functioning of hydrothermal vent species, especially R. pachyptila, was studied intensively

Girguis, Peter R.

375

Effect of Microwave Frequency on Hydrothermal Synthesis of Nanocrystalline Tetragonal Barium Titanate  

E-Print Network [OSTI]

Effect of Microwave Frequency on Hydrothermal Synthesis of Nanocrystalline Tetragonal Barium) with particle sizes ranging from 30 to 100 nm were synthesized via microwave-hydrothermal routes at various, but increased gradually with extended aging time in variable frequency (3-5.5 GHz to 1 s) processing

Dutta, Prabir K.

376

INFLUENCE OF HYDROTHERMAL TREATMENT ON RHEOLOGICAL AND COOKING CHARACTERISTICS OF FRESH EGG PASTA  

E-Print Network [OSTI]

0 INFLUENCE OF HYDROTHERMAL TREATMENT ON RHEOLOGICAL AND COOKING CHARACTERISTICS OF FRESH EGG PASTA@univ-lr.fr Keywords: D.I.C. Hydrothermal treatment; Fresh egg pasta; Mechanical properties; Apparent density; Cooking (2008) 283­291" DOI : 10.1016/j.jcs.2007.04.014 #12;1 Abstract. The effect of D.I.C. processing

Paris-Sud XI, Université de

377

Research paper Nanostructured calcite precipitated under hydrothermal conditions in the presence  

E-Print Network [OSTI]

. This has relevance for geological processes in diverse environments, such as hydrothermal systems along midResearch paper Nanostructured calcite precipitated under hydrothermal conditions in the presence, Département MCMF, CNRS, 25 Avenue des Martyrs, 38042 Grenoble, France e Physics of Geological Processes

378

EFFECT OF HYDROTHERMAL TREATMENT ON PHYSICOCHEMICAL1 PROPERTIES OF WHEAT, WAXY AND STANDARD MAIZE STARCHES2  

E-Print Network [OSTI]

1 EFFECT OF HYDROTHERMAL TREATMENT ON PHYSICOCHEMICAL1 PROPERTIES OF WHEAT, WAXY AND STANDARD MAIZE.10.005 #12;2 ABSTRACT18 Standard maize (SMS), waxy maize (WMS) and wheat (WTS) starches were19 hydrothermally treated at three pressure levels. Effects of D.I.C. processing conditions20 on thermal characteristics

Paris-Sud XI, Université de

379

Solving net constrained hydrothermal Nash-Cournot equilibrium problems via the  

E-Print Network [OSTI]

Solving net constrained hydrothermal Nash-Cournot equilibrium problems via the proximal decades, the electric power industry has experienced deregulation processes in most of the countries markets are presented. Bilevel optimization is proposed in [8, 15] to model a hydrothermal coordination

Solodov, Mikhail V.

380

Hydrothermal transport and deposition of the rare earth elements by fluorine-bearing aqueous liquids  

E-Print Network [OSTI]

ARTICLE Hydrothermal transport and deposition of the rare earth elements by fluorine environmental concerns, have created a great demand for the rare earth elements (REE), and focused considerable Hydrothermal concentration of the rare earth elements (REE) to economic and potentially economic levels has

Note: This page contains sample records for the topic "hydrothermal hot water" 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

Investigation of Lignin Deposition on Cellulose During Hydrothermal Pretreatment, Its Effect on  

E-Print Network [OSTI]

Investigation of Lignin Deposition on Cellulose During Hydrothermal Pretreatment, Its Effect Ridge, Tennessee ABSTRACT: In dilute acid pretreatment of lignocellulosic biomass, lignin has been shown formed by hydrothermal pretreatment of a mixture of Avicel cellulose and poplar wood showed that lignin

California at Riverside, University of

382

Hydrothermally Stable, Sulfur-Tolerant Platinum-Based Oxidation Catalysts  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensionalthe U.S. Department of Energy andHydrothermal Processing ofvia

383

Journal of Crystal Growth 310 (2008) 29462953 Textural properties of synthetic nano-calcite produced by hydrothermal  

E-Print Network [OSTI]

-calcite produced by hydrothermal carbonation of calcium hydroxide G. Montes-Hernandeza,?, A. Ferna´ ndez. Hydrothermal crystal growth; B1. Minerals; B1. Nanomaterials 1. Introduction Calcium carbonate is an inorganic February 2008 Communicated by S. Veesler Available online 19 February 2008 Abstract The hydrothermal

Montes-Hernandez, German

384

The Behaviour of Base Metals in Arc-Type Magmatic-Hydrothermal Systems Insights from Merapi Volcano,  

E-Print Network [OSTI]

zone stratovolcanoes provide important windows on the magmatic-hydrothermal processes at playThe Behaviour of Base Metals in Arc-Type Magmatic- Hydrothermal Systems ­ Insights from Merapi systems include a shallow magmatic reservoir (the porphyry stock), an overlying hydrothermal cell, its

Barnes, Sarah-Jane

385

GEOCHEMISTRY, GEOPHYSICS, GEOSYSTEMS, VOL. ???, XXXX, DOI:10.1029/, Flow Rate Perturbations in a Black Smoker Hydrothermal1  

E-Print Network [OSTI]

of aque-21 ous fluids within mid-ocean ridge hydrothermal systems and mechanical processes22 between mid-35 ocean ridge hydrothermal fluid flow and mechanical processes, there have been no36 direct in a Black Smoker Hydrothermal1 Vent In Response to a Mid-Ocean Ridge Earthquake Swarm2 Timothy J. Crone

Wilcock, William

386

A numerical model of hydrothermal cooling and crustal accretion at a fast spreading mid-ocean ridge  

E-Print Network [OSTI]

: 7360 words, 11 figures. Keywords: Mid-ocean ridge processes; hydrothermal cooling; numerical modelA numerical model of hydrothermal cooling and crustal accretion at a fast spreading mid-ocean ridge present a steady state numerical representation of the sill model that explicitly includes hydrothermal

Toomey, Doug

387

Physical properties of upper oceanic crust: Ocean Drilling Program Hole 801C and the waning of hydrothermal circulation  

E-Print Network [OSTI]

Marine Geology and Geophysics: Heat flow (benthic) and hydrothermal processes; 7220 Seismology: Oceanic of hydrothermal circulation Richard D. Jarrard,1 Lewis J. Abrams,2 Robert Pockalny,3 Roger L. Larson,3 and Tetsuro 2003. [1] The hydrologic evolution of oceanic crust, from vigorous hydrothermal circulation in young

Abrams, Lewis J.

388

Magnetic fabrics and fluid flow directions in hydrothermal systems. A case study in the Chaillac BaFFe deposits  

E-Print Network [OSTI]

of anisotropy of magnetic susceptibility (AMS) to describe the mineralizing process in hydrothermal systems. BaMagnetic fabrics and fluid flow directions in hydrothermal systems. A case study in the Chaillac Ba hydrothermal textures and tectonic structures have been described in veins, sinters, and sandstone cemented

Paris-Sud XI, Université de

389

PII S0016-7037(98)00209-9 Gold solubility and speciation in hydrothermal solutions: Experimental study of the  

E-Print Network [OSTI]

and deposition of gold in ore-forming processes. The most important ligands in hydrothermal gold-bearing soPII S0016-7037(98)00209-9 Gold solubility and speciation in hydrothermal solutions: Experimental Science Ltd 1. INTRODUCTION Field and mineralogical studies of hydrothermal gold deposits demonstrate

Paris-Sud XI, Université de

390

HYDROTHERMAL PROCESSING OF BaTiO 3/POLYMER FILMS Elliott B. Slamovich and Ilhan A. Aksay  

E-Print Network [OSTI]

HYDROTHERMAL PROCESSING OF BaTiO 3/POLYMER FILMS Elliott B. Slamovich and Ilhan A. Aksay Department temperature used in hydrothermal processing. BACKGROUND Over the last decade efforts have increased to develop hydrothermal processing not only to fabricate ceramics, but also to form thin film composites containing

Aksay, Ilhan A.

391

Hydrothermal Synthesis of Dy-Doped BaTiO3 Powders ERSIN E. OREN and A. CUNEYT TAS  

E-Print Network [OSTI]

. Hydrothermal processing sis method used and temperature, may exhibit four different of BaTiO3 powders has) are "ferroelectric." hydrothermal processing required a pH 12 in the aqueous BaTiO3 is of the tetragonal symmetryHydrothermal Synthesis of Dy-Doped BaTiO3 Powders ERSIN E. OREN and A. CUNEYT TAS Submicron

Tas, A. Cuneyt

392

Synthesis of FeNi3 Alloyed Nanoparticles by Hydrothermal Reduction Qilong Liao,, Rina Tannenbaum, and Zhong Lin Wang*,  

E-Print Network [OSTI]

method.12 The hydrothermal process appears to be a very effective method for preparing alloyedSynthesis of FeNi3 Alloyed Nanoparticles by Hydrothermal Reduction Qilong Liao,, Rina Tannenbaum paper presents a facile and low-cost hydrothermal method to synthesize stoichiometric FeNi3 alloy

Wang, Zhong L.

393

Hot  

Office of Scientific and Technical Information (OSTI)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinan antagonist Journal Article: Crystal structureComposite--FORRemarksHEATING DISTRIBUTIONSHistory of

394

Opaline cherts associated with sublacustrine hydrothermal springs at Lake Bogoria, Kenya Rift valley  

SciTech Connect (OSTI)

An unusual group of cherts found at saline, alkaline Lake Bogoria in the Kenya Rift differs from the Magadi-type cherts commonly associated with saline, alkaline lakes. The cherts are opaline, rich in diatoms, and formed from a siliceous, probably gelatinous, precursor that precipitated around submerged alkaline hot springs during a Holocene phase of high lake level. Silica precipitation resulted from rapid drop in the temperature of the spring waters and, possibly, pH. Lithification began before subaerial exposure. Ancient analogous cherts are likely to be localized deposits along fault lines.

Renaut, R.W.; Owen, R.B.

1988-08-01T23:59:59.000Z

395

Assessment of hot gas contaminant control  

SciTech Connect (OSTI)

The objective of this work is to gather data and information to assist DOE in responding to the NRC recommendation on hot gas cleanup by performing a comprehensive assessment of hot gas cleanup systems for advanced coal-based Integrated Gasification Combined Cycle (IGCC) and Pressurized Fluidized Bed Combustion (PFBC) including the status of development of the components of the hot gas cleanup systems, and the probable cost and performance impacts. The scope and time frame of information gathering is generally responsive to the boundaries set by the National Research council (NRC), but includes a broad range of interests and programs which cover hot gas cleanup through the year 2010. As the status of hot gas cleanup is continually changing, additional current data and information are being obtained for this effort from this 1996 METC Contractors` Review Meeting as well as from the 1996 Pittsburgh Coal Conference, and the University of Karlsruhe Symposium. The technical approach to completing this work consists of: (1) Determination of the status of hot gas cleanup technologies-- particulate collection systems, hot gas desulfurization systems, and trace contaminant removal systems; (2) Determination of hot gas cleanup systems cost and performance sensitivities. Analysis of conceptual IGCC and PFBC plant designs with hot gas cleanup have been performed. The impact of variations in hot gas cleanup technologies on cost and performance was evaluated using parametric analysis of the baseline plant designs and performance sensitivity.

Rutkowski, M.D.; Klett, M.G.; Zaharchuk, R.

1996-12-31T23:59:59.000Z

396

In Situ Type Study of Hydrothermally Prepared Titanates and Silicotitanates  

SciTech Connect (OSTI)

One of the most vexing problems facing the nuclear industry and countries with nuclear weapons is the safe disposal of the generated nuclear waste. Huge quantities of nuclear waste arising from weapons manufacture are stored at the Hanford and Savannah River sites in the USA. The general method of remediation involves the removal of Cs-137, Sr-90 and actinides from a huge quantity of salts, principally NaNO{sub 3}, organics and complexing agents. It has been found that a sodium silicotitanate is able to remove Cs{sup +} selectively from the waste and certain sodium titanates remove Sr{sup 2+} and actinides. These compounds have been prepared by ex-situ hydrothermal methods. We have studied the In situ growth of these materials at the National Synchrotron Light Source, Brookhaven National Laboratory. In addition we will describe the mechanism of ion exchange in the titanosilicate as observed by In situ methods and how the combination of these techniques coupled with an intimate knowledge of the structure of the solids is helping to solve the remediation process. In general, the In situ method allows the investigator to follow the nucleation and crystal growth or phase transformations occurring in hydrothermal reactions.

Clearfield,A.; Tripathi, A.; Medvedev, D.; Celestian, A.; Parise, J.

2006-01-01T23:59:59.000Z

397

ADVANCED HOT GAS FILTER DEVELOPMENT  

SciTech Connect (OSTI)

Iron aluminide hot gas filters have been developed using powder metallurgy techniques to form seamless cylinders. Three alloys were short-term corrosion tested in simulated IGCC atmospheres with temperatures between 925 F and 1200 F with hydrogen sulfide concentrations ranging from 783 ppm{sub v} to 78,300 ppm{sub v}. Long-term testing was conducted for 1500 hours at 925 F with 78,300 ppm{sub v}. The FAS and FAL alloys were found to be corrosion resistant in the simulated environments. The FAS alloy has been commercialized.

Matthew R. June; John L. Hurley; Mark W. Johnson

1999-04-01T23:59:59.000Z

398

Hot Spot | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:GreerHi GtelHomer, Alaska:Horace, NorthHorvatic JumpOpenHotPot,Spot

399

Emergency Factsheet for Disinfecting Water Wells by Shock Chlorination  

E-Print Network [OSTI]

an alternate water source during the treatment period. Most water treatment equipment (such as water heaters, release the air to allow the tank to be filled with chlorinated water. Drain all hot water heatersEmergency Factsheet for Disinfecting Water Wells by Shock Chlorination Mark L. McFarland, Associate

400

Short communication Control of brown rot of stone fruits by brief heated water immersion treatments  

E-Print Network [OSTI]

Short communication Control of brown rot of stone fruits by brief heated water immersion treatments. Several studies have shown that hot water treatments by themselves or in combination with other treatments they require are an issue that has hindered the commercial adoption of hot water treatments. While higher water

Crisosto, Carlos H.

Note: This page contains sample records for the topic "hydrothermal hot water" 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

UBC Social Ecological Economic Development Studies (SEEDS) Student Report Drain Water Heat Recovery  

E-Print Network [OSTI]

household, the NPV of DWHR is -$203.68 for homes with electric water heaters and -$464.88 for homes with natural gas water heaters. DWHR is much more economical for households with electric hot water heaters as their energy costs are much higher. A household of 4 or more people with an electric hot water heater would

402

Detachment Faulting & Geothermal Resources - Pearl Hot Spring...  

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

Faulting & Geothermal Resources - Pearl Hot Spring, NV Conducting a 3D Converted Shear Wave Project to Reduce Exploration Risk at Wister, CA Crump Geyser: High Precision...

403

Covered Product Category: Hot Food Holding Cabinets  

Broader source: Energy.gov [DOE]

The Federal Energy Management Program (FEMP) provides acquisition guidance for hot food holding cabinets, which are covered by the ENERGY STAR program.

404

Geothermal resource assessment of Hot Sulphur Springs, Colorado  

SciTech Connect (OSTI)

Approximately 10 springs whose waters are used for recreation, steam baths and laundry purposes are located at Hot Sulphur Springs. Estimated heat-flow at Hot Sulphur Springs is approximately 100 mW/m2, which is about normal for western Colorado. Recent work tends to show that surface and reduced heat flow in the mountains of northern Colorado could be high. The thermal waters have an estimated discharge of 50 gpm, a temperature that ranges from 104/sup 0/F (40/sup 0/C) to a high of 111/sup 0/F (44/sup 0/C), and a total dissolved solid content of 1200 mg/l. The waters are a sodium bicarbonate type with a large concentration of sulphate. It is estimated that the most likely reservoir temperature of this system ranges from 167/sup 0/F (75/sup 0/F) to 302/sup 0/F (150/sup 0/C) and that the areal extent of the system could encompass 1.35 sq mi (3.50 sq km) and could contain 0.698 Q's (1015 B.T.U.'s) of heat energy. Soil mercury and electrical resistivity surveys were conducted. The geophysical survey delineated several areas of low resistivity associated with the north trending fault that passes just to the west of the spring area. It appears that this fault is saturated with thermal waters and may be the conduit along which the thermal waters are moving up from depth. The appendices to this report include tables showing water temperatures required for various industrial processes, as well as dissolved minerals, trace elements and radioactivity levels found in the thermal waters. Also presented are a complete description of the factors affecting the electrical resistivity measurements, a description of the electrical resistivity equipment used, and the resistivity field procedures. Electrical resistivity calculations are also included in the appendices.

Pearl, R.H.; Zacharakis, T.G.; Ringrose, C.D.

1982-01-01T23:59:59.000Z

405

Hydrothermal research and development assessment. Task Force report: projections for direct-heat applications  

SciTech Connect (OSTI)

Low and moderate temperature hydrothermal resources suitable for direct-heat applications have been identified in 37 states. The extent to which three resources might be used over the next 20 years were evaluated and the probable impact of Federal programs on hydrothermal resource utilization was assessed. The use types that comprise the bulk of the market were determined. Representative firms and municipalities were interviewed to determine their willingness to use hydrothermal energy, and to determine the investment decision criteria that would influence their actions. (MHR)

Not Available

1982-04-01T23:59:59.000Z

406

Solar space and water heating system installed at Charlottesville, Virginia  

SciTech Connect (OSTI)

The solar energy system located at David C. Wilson Neuropsychiatric Hospital, Charlottesville, Virginia, consists of 88 single glazed, Sunworks Solector copper base plate collector modules; hot water coils in the hot air ducts; a domestic hot water (DHW) preheat tank; a 3,000 gallon concrete urethane-insulated storage tank and other miscellaneous components. This report includes extracts from the site files, specifications, drawings, installation, operation and maintenance instructions.

Greer, Charles R.

1980-09-01T23:59:59.000Z

407

Relationship between Hot Spot Residues and Ligand Binding Hot Spots in Protein-Protein Interfaces  

E-Print Network [OSTI]

, while identification of a hot spot by alanine scanning establishes the potential to generate substantial, termed "hot spots", that comprise the subset of residues that contribute the bulk of the binding free proposed as prime targets for drug binding.1,4 The established approach to the identification of such hot

Vajda, Sandor

408

Hot electron production and heating by hot electrons in fast ignitor research  

SciTech Connect (OSTI)

In an experimental study of the physics of fast ignition the characteristics of the hot electron source at laser intensities up to 10(to the 20th power) Wcm{sup -2} and the heating produced at depth by hot electrons have been measured. Efficient generation of hot electrons but less than the anticipated heating have been observed.

Key, M.H.; Estabrook, K.; Hammel, B. [and others

1997-12-01T23:59:59.000Z

409

Is My Water Safe? disaster may disrupt the electricity needed to pump  

E-Print Network [OSTI]

food, brushing teeth and keeping clean. Water storage You can store water ahead for use in emergencies. Emergency water Your hot water heater or water pressure tank could supply many gallons of safe water during an emergency. Before using water from the water heater, switch off the gas or elec- tricity that heats

410

Methods and apparatus for catalytic hydrothermal gasification of biomass  

DOE Patents [OSTI]

Continuous processing of wet biomass feedstock by catalytic hydrothermal gasification must address catalyst fouling and poisoning. One solution can involve heating the wet biomass with a heating unit to a temperature sufficient for organic constituents in the feedstock to decompose, for precipitates of inorganic wastes to form, for preheating the wet feedstock in preparation for subsequent separation of sulfur contaminants, or combinations thereof. Treatment further includes separating the precipitates out of the wet feedstock, removing sulfur contaminants, or both using a solids separation unit and a sulfur separation unit, respectively. Having removed much of the inorganic wastes and the sulfur that can cause poisoning and fouling, the wet biomass feedstock can be exposed to the heterogeneous catalyst for gasification.

Elliott, Douglas C.; Butner, Robert Scott; Neuenschwander, Gary G.; Zacher, Alan H.; Hart, Todd R.

2012-08-14T23:59:59.000Z

411

ADVANCED HOT GAS FILTER DEVELOPMENT  

SciTech Connect (OSTI)

DuPont Lanxide Composites, Inc. undertook a sixty-month program, under DOE Contract DEAC21-94MC31214, in order to develop hot gas candle filters from a patented material technology know as PRD-66. The goal of this program was to extend the development of this material as a filter element and fully assess the capability of this technology to meet the needs of Pressurized Fluidized Bed Combustion (PFBC) and Integrated Gasification Combined Cycle (IGCC) power generation systems at commercial scale. The principal objective of Task 3 was to build on the initial PRD-66 filter development, optimize its structure, and evaluate basic material properties relevant to the hot gas filter application. Initially, this consisted of an evaluation of an advanced filament-wound core structure that had been designed to produce an effective bulk filter underneath the barrier filter formed by the outer membrane. The basic material properties to be evaluated (as established by the DOE/METC materials working group) would include mechanical, thermal, and fracture toughness parameters for both new and used material, for the purpose of building a material database consistent with what is being done for the alternative candle filter systems. Task 3 was later expanded to include analysis of PRD-66 candle filters, which had been exposed to actual PFBC conditions, development of an improved membrane, and installation of equipment necessary for the processing of a modified composition. Task 4 would address essential technical issues involving the scale-up of PRD-66 candle filter manufacturing from prototype production to commercial scale manufacturing. The focus would be on capacity (as it affects the ability to deliver commercial order quantities), process specification (as it affects yields, quality, and costs), and manufacturing systems (e.g. QA/QC, materials handling, parts flow, and cost data acquisition). Any filters fabricated during this task would be used for product qualification tests being conducted by Westinghouse at Foster-Wheeler's Pressurized Circulating Fluidized Bed (PCFBC) test facility in Karhula, Finland. Task 5 was designed to demonstrate the improvements implemented in Task 4 by fabricating fifty 1.5-meter hot gas filters. These filters were to be made available for DOE-sponsored field trials at the Power Systems Development Facility (PSDF), operated by Southern Company Services in Wilsonville, Alabama.

E.S. Connolly; G.D. Forsythe

2000-09-30T23:59:59.000Z

412

One-step synthesis of titanium oxide nanocrystal- rutile by hydrothermal method  

SciTech Connect (OSTI)

Pure rutile phase titanium oxides (TiO{sub 2}) nanocrystals were synthesized via hydrothermal method with titanium tetrachloride (TiCl{sub 4}) and water (H{sub 2}O) treated in an autoclave. The particle size and phase assemblages were characterized using Scanning electron microscopy (SEM) and X-ray diffraction (XRD) respectively. Band gap energy (E{sub g}) of the nanocrystals was estimated from the Ultra violet visible light (UV-vis) absorption spectra. It was demonstrated that TiO{sub 2} nanocrystals can be prepared through increasing of temperature and period of treatment. It is believed that the presence of acid chloride (HCl) as by-product during the hydrolysis played an important role in controlling the growth of morphology and crystal structures. The E{sub g} of the samples were estimated from the plot of modified Kubelka-Munk function were in the range of 3.04 3.26eV for the samples synthesized at temperature ranging from 50 to 200C for 16 hours.

Yan, Evyan Yang Chia [School of Applied Physics, Faculty of Science and Technology, University Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia and Department of Applied Science, Faculty of Science, Engineering and Technology, Nilai University, Persiaran Universiti, P (Malaysia); Zakaria, Sarani; Chia, Chin Hua [School of Applied Physics, Faculty of Science and Technology, University Kebangsaan Malaysia, 43600 Bangi, Selangor (Malaysia)

2014-09-03T23:59:59.000Z

413

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

SciTech Connect (OSTI)

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

Freiburger, R.M.

1984-09-01T23:59:59.000Z

414

Energy and Economic Impacts of U.S. Federal Energy and Water Conservation Standards Adopted From 1987 Through 2011  

E-Print Network [OSTI]

and Heat Pumps NAECA 1987 Water Heaters NAECA 1987 FurnacesPumps EPACT 1992 Water Heaters, Hot Water Supply Boilers andand heat pumps, and water heaters We modified the analytical

Meyers, Stephen

2013-01-01T23:59:59.000Z

415

Arsenic in your water?: Economists study perceptions of risks from drinking water high in arsenic  

E-Print Network [OSTI]

Arsenic in water?your tx H2O | pg. 27 Story by Kathy Wythe Economists study perceptions of risks from drinking water high in arsenic In several ?hot spots? across the United States people may be drinking water with high levels of naturally... occurring arsenic without understanding the associated risks, according to agricultural economists. ?Many households in arsenic ?hot spots? are in fact being exposed to harmful doses of arsenic,? said Dr. Douglass Shaw, professor of agricultural...

Wythe, Kathy

2010-01-01T23:59:59.000Z

416

Ceramic hot-gas filter  

DOE Patents [OSTI]

A ceramic hot-gas candle filter having a porous support of filament-wound oxide ceramic yarn at least partially surrounded by a porous refractory oxide ceramic matrix, and a membrane layer on at least one surface thereof. The membrane layer may be on the outer surface, the inner surface, or both the outer and inner surface of the porous support. The membrane layer may be formed of an ordered arrangement of circularly wound, continuous filament oxide ceramic yarn, a ceramic filler material which is less permeable than the filament-wound support structure, or some combination of continuous filament and filler material. A particularly effective membrane layer features circularly wound filament with gaps intentionally placed between adjacent windings, and a filler material of ceramic particulates uniformly distributed throughout the gap region. The filter can withstand thermal cycling during backpulse cleaning and is resistant to chemical degradation at high temperatures.

Connolly, Elizabeth Sokolinski (Wilmington, DE); Forsythe, George Daniel (Landenberg, PA); Domanski, Daniel Matthew (New Castle, DE); Chambers, Jeffrey Allen (Hockessin, DE); Rajendran, Govindasamy Paramasivam (Boothwyn, PA)

1999-01-01T23:59:59.000Z

417

Ceramic hot-gas filter  

DOE Patents [OSTI]

A ceramic hot-gas candle filter is described having a porous support of filament-wound oxide ceramic yarn at least partially surrounded by a porous refractory oxide ceramic matrix, and a membrane layer on at least one surface thereof. The membrane layer may be on the outer surface, the inner surface, or both the outer and inner surface of the porous support. The membrane layer may be formed of an ordered arrangement of circularly wound, continuous filament oxide ceramic yarn, a ceramic filler material which is less permeable than the filament-wound support structure, or some combination of continuous filament and filler material. A particularly effective membrane layer features circularly wound filament with gaps intentionally placed between adjacent windings, and a filler material of ceramic particulates uniformly distributed throughout the gap region. The filter can withstand thermal cycling during back pulse cleaning and is resistant to chemical degradation at high temperatures.

Connolly, E.S.; Forsythe, G.D.; Domanski, D.M.; Chambers, J.A.; Rajendran, G.P.

1999-05-11T23:59:59.000Z

418

Biologically Inspired Photocatalytically Active Membranes for Water Treatment  

E-Print Network [OSTI]

750C) . However, hydrothermal processing of TiO 2 has been30nm for both hydrothermal processing conditions. Keywords.Elevated hydrothermal processing temperatures (such as 150

Kinsinger, Nichola

2013-01-01T23:59:59.000Z

419

FOOD AND DRINK REGULATIONS Serving hot food  

E-Print Network [OSTI]

of food poisoning increases as time passes. · Hand contact with unwrapped food should be kept to a minimum1 FOOD AND DRINK REGULATIONS Serving hot food Home made hot food may not be served at events conditions must be adhered to: · The caterer must have HSE Food Hygiene Certification, which

O'Mahony, Donal E.

420

Building America Webinar: Central Multifamily Water Heating Systems  

Broader source: Energy.gov [DOE]

Hosted by DOE's Building America program, this webinar will focus on the effective use of central heat pump water heaters (HPWHs) and control systems to reduce the energy use in hot water distribution.

Note: This page contains sample records for the topic "hydrothermal hot water" 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

Laboratory and field-based investigations of subsurface geochemical processes in seafloor hydrothermal systems  

E-Print Network [OSTI]

This thesis presents the results of four discrete investigations into processes governing the organic and inorganic chemical composition of seafloor hydrothermal fluids in a variety of geologic settings. Though Chapters 2 ...

Reeves, Eoghan

2010-01-01T23:59:59.000Z

422

E-Print Network 3.0 - acetic acid-catalyzed hydrothermal Sample...  

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

results for: acetic acid-catalyzed hydrothermal Page: << < 1 2 3 4 5 > >> 1 GTQ, Chemistry 212, Dr. Glaser, FS96 --1 --GTQ on Lactones. (30 points, reaction chem., mechanistic...

423

Preservation of Fe(II) by Carbon-Rich Matrices in Hydrothermal...  

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

of intense research for the last two decades, including studies of the chemistry and mineralogy of very small particles streaming from hydrothermal vents in the global mid-ocean...

424

Rare Earth Oxide Fluoride Nanoparticles And Hydrothermal Method For Forming Nanoparticles  

DOE Patents [OSTI]

A hydrothermal method for forming nanoparticles of a rare earth element, oxygen and fluorine has been discovered. Nanoparticles comprising a rare earth element, oxygen and fluorine are also described. These nanoparticles can exhibit excellent refractory properties as well as remarkable stability in hydrothermal conditions. The nanoparticles can exhibit excellent properties for numerous applications including fiber reinforcement of ceramic composites, catalyst supports, and corrosion resistant coatings for high-temperature aqueous solutions.

Fulton, John L. (Richland, WA); Hoffmann, Markus M. (Richland, WA)

2003-12-23T23:59:59.000Z

425

Rare earth oxide fluoride nanoparticles and hydrothermal method for forming nanoparticles  

DOE Patents [OSTI]

A hydrothermal method for forming nanoparticles of a rare earth element, oxygen and fluorine has been discovered. Nanoparticles comprising a rare earth element, oxygen and fluorine are also described. These nanoparticles can exhibit excellent refractory properties as well as remarkable stability in hydrothermal conditions. The nanoparticles can exhibit excellent properties for numerous applications including fiber reinforcement of ceramic composites, catalyst supports, and corrosion resistant coatings for high-temperature aqueous solutions.

Fulton, John L. (Richland, WA) [Richland, WA; Hoffmann, Markus M. (Richland, WA) [Richland, WA

2001-11-13T23:59:59.000Z

426

Experimental hydrothermal alteration of feldspar: the influence of solid composition on alteration  

E-Print Network [OSTI]

EXPERIMENTAL HYDROTHERMAL ALTERATION OF FELDSPAR: THE INFLUENCE OF SOLID COMPOSITION ON ALTERATION A Thesis by MICHAEL JOSEPH PAOLINI Submitted to the Graduate College of Texas A&M University in partial fulfillment of the reguirements... for the degree of MASTER OF SCIENCE December 1985 Major Subject: Geology EXPERIMENTAL HYDROTHERMAL ALTERATION OF FELDSPAR: THE INFLUENCE OF SOLID COMPOSITION ON ALTERATION A Thesis by MICHAEL JOSEPH PAOLINZ Approved as to style and content by: Andre Ha...

Paolini, Michael Joseph

2012-06-07T23:59:59.000Z

427

Hydrothermal metamorphism and low-temperature alteration on the Mid-Atlantic ridge  

E-Print Network [OSTI]

inferred hydrothermal fluid vent sites. The style of alteration of these rocks ranges from weathering at ambient ocean floor temperatures to metamorphism at greenshist facies conditions, The alteration products associated with the weathered ba- salts... collected from the hydrothermal vent site exhibit chemistries similar to those expected for rocks weathered at low temperatures. These rocks have lost Mg, Si, Ca and S and have gained K, Mn, H 0 and 2 possibly Pe. The greenschist facies rocks...

Peron, Philippe Raymond

2012-06-07T23:59:59.000Z

428

Emission of Visible Light by Hot Dense Metals  

E-Print Network [OSTI]

HIFAN 1761 EMISSION OF VISIBLE LIGHT BY HOT DENSE METALS ByDE-AC52-07NA27344. HI FAN Emission of Visible Light by HotABSTRACT We consider the emission of visible light by hot

More, R.M.

2010-01-01T23:59:59.000Z

429

Lakeland Electric- Solar Water Heating Program  

Broader source: Energy.gov [DOE]

Lakeland Electric, a municipal utility in Florida, is the nation's first utility to offer solar-heated domestic hot water on a "pay-for-energy" basis. The utility has contracted with a solar...

430

Austin Energy- Solar Water Heating Rebate  

Broader source: Energy.gov [DOE]

Austin Energy offers its residential, commercial, and municipal customers up front rebates or a low interest loan for the purchase and installation of solar hot water heaters. Because the program...

431

Preservation of iron(II) by carbon-rich matrices in a hydrothermal plume  

SciTech Connect (OSTI)

Hydrothermal venting associated with mid-ocean ridge volcanism is globally widespread. This venting is responsible for a dissolved iron flux to the ocean that is approximately equal to that associated with continental riverine runoff. For hydrothermal fluxes, it has long been assumed that most of the iron entering the oceans is precipitated in inorganic forms. However, the possibility of globally significant fluxes of iron escaping these mass precipitation events and entering open-ocean cycles is now being debated, and two recent studies suggest that dissolved organic ligands might influence the fate of hydrothermally vented metals. Here we present spectromicroscopic measurements of iron and carbon in hydrothermal plume particles at the East Pacific Rise mid-ocean ridge. We show that organic carbon-rich matrices, containing evenly dispersed iron(II)-rich materials, are pervasive in hydrothermal plume particles. The absence of discrete iron(II) particles suggests that the carbon and iron associate through sorption or complexation. We suggest that these carbon matrices stabilize iron(II) released from hydrothermal vents in the region, preventing its oxidation and/or precipitation as insoluble minerals. Our findings have implications for deep-sea biogeochemical cycling of iron, a widely recognized limiting nutrient in the oceans.

Toner, Brandy M.; Fakra, Sirine C.; Manganini, Steven J.; Santelli, Cara M.; Marcus, Matthew A.; Moffett, James W.; Rouxel, Olivier; German, Christopher R.; Edwards, Katrina J.

2008-09-20T23:59:59.000Z

432

Jackson Hot Springs Lodge Space Heating Low Temperature Geothermal...  

Open Energy Info (EERE)

Hot Springs Lodge Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Jackson Hot Springs Lodge Space Heating Low Temperature Geothermal Facility...

433

Steamboat Villa Hot Springs Spa Space Heating Low Temperature...  

Open Energy Info (EERE)

Villa Hot Springs Spa Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Steamboat Villa Hot Springs Spa Space Heating Low Temperature Geothermal...

434

Broadwater Athletic Club & Hot Springs Space Heating Low Temperature...  

Open Energy Info (EERE)

Athletic Club & Hot Springs Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Broadwater Athletic Club & Hot Springs Space Heating Low Temperature...

435

Salida Hot Springs (Poncha Spring) Space Heating Low Temperature...  

Open Energy Info (EERE)

Salida Hot Springs (Poncha Spring) Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Salida Hot Springs (Poncha Spring) Space Heating Low...

436

Thermal Gradient Holes At Spencer Hot Springs Area (Shevenell...  

Open Energy Info (EERE)

discoveries to the attention of the geothermal community. Exploration holes at Tungsten Mountain and McGuiness Hills (Spencer Hot Springs?) in 2004 and 2005 encountered hot...

437

Quenching and Partitioning Process Development to Replace Hot...  

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

and Partitioning Process Development to Replace Hot Stamping of High-Strength Automotive Steel Quenching and Partitioning Process Development to Replace Hot Stamping of...

438

Isotopic Analysis- Fluid At Indian Valley Hot Springs Geothermal...  

Open Energy Info (EERE)

Activity: Isotopic Analysis- Fluid At Indian Valley Hot Springs Geothermal Area (1990) Exploration Activity Details Location Indian Valley Hot Springs Geothermal Area...

439

Chena Hot Springs Resort - Electric Power Generation Using Geothermal...  

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

Hot Springs Resort - Electric Power Generation Using Geothermal Fluid Coproduced from Oil andor Gas Wells Chena Hot Springs Resort - Electric Power Generation Using Geothermal...

440

Aeromagnetic Survey At Roosevelt Hot Springs Geothermal Area...  

Open Energy Info (EERE)

literature review of the Roosevelt Hot Springs Geothermal Area. Notes Aeromagnetic intensity residual map compiled for Roosevelt Hot Springs Geothermal Area, providing...

Note: This page contains sample records for the topic "hydrothermal hot water" 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

Compound and Elemental Analysis At Lake City Hot Springs Area...  

Open Energy Info (EERE)

Lake City Hot Springs Area (Warpinski, Et Al., 2004) Exploration Activity Details Location Lake City Hot Springs Area Exploration Technique Compound and Elemental Analysis Activity...

442

Compound and Elemental Analysis At Lake City Hot Springs Area...  

Open Energy Info (EERE)

Lake City Hot Springs Area (Sladek, Et Al., 2004) Exploration Activity Details Location Lake City Hot Springs Area Exploration Technique Compound and Elemental Analysis Activity...

443

Ground Gravity Survey At Lake City Hot Springs Area (Warpinski...  

Open Energy Info (EERE)

Lake City Hot Springs Area (Warpinski, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Lake City Hot...

444

Data Acquisition-Manipulation At Lake City Hot Springs Area ...  

Open Energy Info (EERE)

Lake City Hot Springs Area (Warpinski, Et Al., 2004) Exploration Activity Details Location Lake City Hot Springs Area Exploration Technique Data Acquisition-Manipulation Activity...

445

Seismic baseline and induction studies- Roosevelt Hot Springs...  

Open Energy Info (EERE)

studies- Roosevelt Hot Springs, Utah and Raft River, Idaho Abstract Local seismic networks were established at the Roosevelt Hot Springs geothermal area, utah and at Raft...

446

Droplet impingement and vapor layer formation on hot hydrophobic surfaces Ji Yong Park1  

E-Print Network [OSTI]

diameter) water droplets that bounce from hydrophobic surfaces whose temperature exceeds the boiling point angle. The residence time determined by high-speed imaging is constant at 1 msec over the temperature-speed imaging is approximately independent of the temperature of the hot surface. Measurements of thermal

Cahill, David G.

447

Hot Dry Rock Geothermal Energy Development in the USA David Duchane and Donald Brown  

E-Print Network [OSTI]

1 Hot Dry Rock Geothermal Energy Development in the USA by David Duchane and Donald Brown Los of the world's store of geothermal energy. The real potential for growth in the use of geothermal energy lies system. Water is circulated around a closed loop to extract thermal energy from an engineered geothermal

448

Transportability Class of Americium in K Basin Sludge under Ambient and Hydrothermal Processing Conditions  

SciTech Connect (OSTI)

This report establishes the technical bases for using a ''slow uptake'' instead of a ''moderate uptake'' transportability class for americium-241 (241Am) for the K Basin Sludge Treatment Project (STP) dose consequence analysis. Slow uptake classes are used for most uranium and plutonium oxides. A moderate uptake class has been used in prior STP analyses for 241Am based on the properties of separated 241Am and its associated oxide. However, when 241Am exists as an ingrown progeny (and as a small mass fraction) within plutonium mixtures, it is appropriate to assign transportability factors of the predominant plutonium mixtures (typically slow) to the Am241. It is argued that the transportability factor for 241Am in sludge likewise should be slow because it exists as a small mass fraction as the ingrown progeny within the uranium oxide in sludge. In this report, the transportability class assignment for 241Am is underpinned with radiochemical characterization data on K Basin sludge and with studies conducted with other irradiated fuel exposed to elevated temperatures and conditions similar to the STP. Key findings and conclusions from evaluation of the characterization data and published literature are summarized here. Plutonium and 241Am make up very small fractions of the uranium within the K Basin sludge matrix. Plutonium is present at about 1 atom per 500 atoms of uranium and 241Am at about 1 atom per 19000 of uranium. Plutonium and americium are found to remain with uranium in the solid phase in all of the {approx}60 samples taken and analyzed from various sources of K Basin sludge. The uranium-specific concentrations of plutonium and americium also remain approximately constant over a uranium concentration range (in the dry sludge solids) from 0.2 to 94 wt%, a factor of {approx}460. This invariability demonstrates that 241Am does not partition from the uranium or plutonium fraction for any characterized sludge matrix. Most of the K Basin sludge characterization data is derived spent nuclear fuel corroded within the K Basins at 10-15?C. The STP process will place water-laden sludges from the K Basin in process vessels at {approx}150-180 C. Therefore, published studies with other irradiated (uranium oxide) fuel were examined. From these studies, the affinity of plutonium and americium for uranium in irradiated UO2 also was demonstrated at hydrothermal conditions (150 C anoxic liquid water) approaching those proposed for the STP process and even for hydrothermal conditions outside of the STP operating envelope (e.g., 150 C oxic and 100 C oxic and anoxic liquid water). In summary, by demonstrating that the chemical and physical behavior of 241Am in the sludge matrix is similar to that of the predominant species (uranium and for the plutonium from which it originates), a technical basis is provided for using the slow uptake transportability factor for 241Am that is currently used for plutonium and uranium oxides. The change from moderate to slow uptake for 241Am could reduce the overall analyzed dose consequences for the STP by more than 30%.

Delegard, Calvin H.; Schmitt, Bruce E.; Schmidt, Andrew J.

2006-08-01T23:59:59.000Z

449

home power 114 / august & september 2006 in Solar Hot Water  

E-Print Network [OSTI]

the great steam-engine catastrophes I had ever read about. Not only that, but my wife Carlene was giving me friends and I were always messing around with stuff. Chemistry sets, model rockets, lawn mower engines on the roof started to make a funny kind of squeal, and we started to see steam coming from the relief valves

Knowles, David William

450

Why Is Nevada in Hot Water? Structural Controls and Tectonic...  

Open Energy Info (EERE)

to the northwest in west-central Nevada near the southeast margin of the high heat-flow region. The abundant geothermal fields may therefore result from a transfer of...

451

TYPICAL HOT WATER DRAW PATTERNS BASED ON FIELD DATA  

E-Print Network [OSTI]

Renewable Energy Laboratory Natural Resources Canada GasRenewable Energy Laboratory (NREL) performed with Integrated Building and Construction Solutions (IBACOS) Natural Resources Canada

Lutz, Jim

2014-01-01T23:59:59.000Z

452

Mandating Solar Hot Water by California Local Governments: Legal Issues  

E-Print Network [OSTI]

and counties the power to require dedication of solar accessthe power to re- quire dedication of solar easements as a

Hoffman,, Peter C.

1981-01-01T23:59:59.000Z

453

Ch. III, Interpretation of water sample analyses Waunita Hot...  

Open Energy Info (EERE)

Published Colorado Geological Survey in Cooperation with the U.S. Department of Energy, 1981 Report Number Special Publication 16 DOI Not Provided Check for DOI...

454

CC Retrofits and Optimal Controls for Hot Water Systems  

E-Print Network [OSTI]

Boilers account for about 42% of space heating energy consumption in commercial and multifamily buildings in the U.S. Boilers are typically designed to be oversized, with redundant safety factors and without consideration of internal heat gains...

Wu, L.; Liu, M.; Wang, G.

2007-01-01T23:59:59.000Z

455

Domestic Hot Water Event Schedule Generator - Energy Innovation Portal  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phasesDataTranslocationDiurnal Cycle ofDoDocuments forWHAT'S RIGHTEnergy

456

Savings Project: Insulate Hot Water Pipes for Energy Savings | Department  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy UsageAUDITVehicles »ExchangeDepartmentResolve to Save EnergySandiaDepartmentof

457

Predictive Control of Hot Water Heaters - Energy Innovation Portal  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - SeptemberMicroneedles for medical point ofPowerSaverPredicting TheIndustrial

458

Mandating Solar Hot Water by California Local Governments: Legal Issues  

E-Print Network [OSTI]

the county building code to require solar energy to be thebuilding code, in accord with the energy element of its general plan, to require solar

Hoffman,, Peter C.

1981-01-01T23:59:59.000Z

459

Solar Hot Water Heater Industry in Barbados | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: AlternativeEnvironment,Institutes and ResponseStaffServicesFutureU.S. technologicalEnergy

460

Model Simulating Real Domestic Hot Water Use - Building America Top  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office0-72.pdfGeorgeDoesn't32 MasterAcquisitiTechnologyPotomacRidgeMobile

Note: This page contains sample records for the topic "hydrothermal hot water" 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

Sustainable Energy Resources for Consumers (SERC) - Solar Hot Water |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of Energy Strain Rate4SuperhardSuspect and CounterfeitNateAlgae

462

Sustainable Energy Resources for Consumers (SERC) - Solar Hot Water |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of Energy Strain Rate4SuperhardSuspect and CounterfeitNateAlgaeDepartment

463

Water Sampling At Roosevelt Hot Springs Geothermal Area (Faulder, 1991) |  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 South Place: Salt LakeWashtenaw County,EnergyDellechaie,InformationOpen

464

Water Sampling At Waunita Hot Springs Geothermal Area (Carpenter, 1981) |  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 South Place: Salt LakeWashtenawInformation Henkle, Et Al.,EnergyOpen

465

Tool for Generating Realistic Residential Hot Water Event Schedules:  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists' Research Petroleum Reserve Test POLICYCleanEnergySeptemberRare EarthTony

466

Tool for Generating Realistic Residential Hot Water Event Schedules: Preprint  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartment of Energyof theRestorationAdvisoryManagement and onOilToledo,Conference Paper

467

FEMP Solar Hot Water Calculator | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Power Basics (TheEtelligence (Smart Grid Project)CompanyFEM Electric

468

Webinar: ENERGY STAR Hot Water Systems for High Performance Homes |  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartment of EnergyofProject is onModelingFederalDepartmentEnergyEnergy

469

Interpretation of Water Sample Analysis, Waunita Hot Spring Project,  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat JumpInc Place: EdenOverview Of The Data,associationOilGunnison County,

470

Volume reduction of hot cell plastic wastes  

SciTech Connect (OSTI)

The disposal of radioactively-contaminated solid wastes has become a national crisis. In such circumstances, it is imperative that this waste be reduced to minimum volume and be packaged to prevent pollution of the environment. The majority of the solid waste generated at the hot cell under consideration is plastic lab ware. Cutting this waste into small pieces with a hot wire technique reduced the volume 66%. Melting the waste, although more time consuming, reduced the volume 90%. The hot wire technique can also be used to cut up damaged master slave manipulator boots, greatly reducing their disposal volume.

Dykes, F W; Henscheid, J P; Lewis, L C; Lundholm, C W; Nicklas, J H

1989-09-19T23:59:59.000Z

471

Tracking Hemicellulose and Lignin Deconstruction During Hydrothermal Pretreatment of Biomass  

E-Print Network [OSTI]

conductivity and heat capacity of saturated liquid water inHeat capacity Material (k, W/m /K) (C p , kJ/kg/K) Sand Air, P atm , 180 o C Water, saturated liquid,

McKenzie, Heather Lorelei

2012-01-01T23:59:59.000Z

472

Hydrothermal processing of chlorinated hydrocarbons in a titanium reactor  

SciTech Connect (OSTI)

Experiments are reported on the oxidative hydrothermal destruction of chlorinated organics in a corrosion-resistant titanium reactor. Oxidation reaction conditions were 250-500 {degree}C near 650 bar and reaction times of 30-100 s in a continuous-flow reactor. Trichloroacetic acid, trichloroethylene, and 1,1,1-trichloroethane behaved similarly. The organic concentration was approximately 1.5 wt%; hydrogen peroxide was the oxidizer; sodium bicarbonate was added to achieve neutral pH. Hydrolysis occurs at low temperature, producing chloride ion and secondary organics. Carbon dioxide is the sole carbon product at 500 {degree}C. Sodium nitrate and sodium nitrite were also found to be effective oxidizers. Corrosion of the titanium was found to be slight (<0.038 mm/yr). The reaction mixture is likely not a single phase at these conditions. The destruction efficiency for trichloroethylene was estimated as 99.96% at 450 {degree}C and 60 s, with <0.02% conversion to volatile chlorinated organic byproducts. 33 refs., 9 figs., 6 tabs.

Foy, B.R.; Waldthausen, K.; Sedillo, M.A.; Buelow, S.J. [Los Alamos National Lab., NM (United States)] [Los Alamos National Lab., NM (United States)

1996-09-01T23:59:59.000Z

473

Charm and Beauty in a Hot Environment  

E-Print Network [OSTI]

We discuss the spectral analysis of quarkonium states in a hot medium of deconfined quarks and gluons, and we show that such an analysis provides a way to determine the thermal properties of the quark-gluon plasma.

Helmut Satz

2006-02-28T23:59:59.000Z

474

Extracting hot carriers from photoexcited semiconductor nanocrystals  

SciTech Connect (OSTI)

During this funding period, we made a significant breakthrough and established for the first time that hot electron transfer from photoexcited NCs to an electron acceptor was indeed possible.

Zhu, Xiaoyang [Columbia University Department of Chemistry

2013-09-12T23:59:59.000Z

475

World launch! Hot-Steam Aerostat  

E-Print Network [OSTI]

Info HeiDAS UH World launch! Hot-Steam Aerostat #12;"If you intend to view the land, if you plan Verne: "Fife weeks on a balloon". HeiDAS stands for Hei?DampfAeroStat (Hot-Steam AeroStat) and it refers to the first operable balloon ever that became buoyant by means of superheated steam. The performance of Hei

Berlin,Technische Universität

476

Canopy hot-spot as crop identifier  

SciTech Connect (OSTI)

Illuminating any reflective rough or structured surface by a directional light source results in an angular reflectance distribution that shows a narrow peak in the direction of retro-reflection. This is called the Heiligenschein or hot-spot of vegetation canopies and is caused by mutual shading of leaves. The angular intensity distribution of the hot-spot, its brightness and slope, are therefore indicators of the plant's geometry. We propose the use of hot-spot characteristics as crop identifiers in satellite remote sensing because the canopy hot-spot carries information about plant stand architecture that is more distinctive for different plant species than, for instance, their spectral reflectance characteristics. A simple three-dimensional Monte Carlo/ray tracing model and an analytic two-dimensional model are developed to estimate the angular distribution of the hot-spot as a function of the size of the plant leaves. The results show that the brightness-distribution and slope of the hot-spot change distinctively for different leaf sizes indicating a much more peaked maximum for the smaller leaves.

Gerstl, S.A.W.; Simmer, C.; Powers, B.J.

1986-05-01T23:59:59.000Z

477

Hot Springs Metropolitan Planning Organization 2030 Long Range Transportation Plan  

E-Print Network [OSTI]

Hot Springs Area Metropolitan Planning Organization 100 Broadway Terrace Hot Springs, Arkansas 71901 Adopted November 3, 2005 HSA-MPO 2030 LRTPii Participating Agencies Garland County Hot... Federal Highway Administration Federal Transit Administration 2030 Long Range Transportation Plan for the Hot Springs Area Metropolitan Planning Organization This LRTP has been funded with federal Metropolitan Planning (PL) funds through...

Hot Springs Metropolitan Planning Organization

2005-11-03T23:59:59.000Z

478

Deterministic Many-to-Many Hot Potato Routing Allan Borodin  

E-Print Network [OSTI]

Deterministic Many-to-Many Hot Potato Routing Allan Borodin Yuval Rabani Baruch Schieber Abstract We consider algorithms for many-to-many hot potato routing. In hot potato (deflection) routing in each time step. We consider a form of routing known as hot potato routing or deflection routing [1, 5

Borodin, Allan

479

Geothermometry At Mt Princeton Hot Springs Geothermal Area (Pearl...  

Open Energy Info (EERE)

Basis Temperature estimation of valley-fill hydrothermal reservoir Notes Si, Na-K, & Na-K-Ca geothermometry estimates yielded a reservoir temperature range of 97 to 188...

480

ADVANCED HOT GAS FILTER DEVELOPMENT  

SciTech Connect (OSTI)

This report describes the fabrication and testing of continuous fiber ceramic composite (CFCC) based hot gas filters. The fabrication approach utilized a modified filament winding method that combined both continuous and chopped fibers into a novel microstructure. The work was divided into five primary tasks. In the first task, a preliminary set of compositions was fabricated in the form of open end tubes and characterized. The results of this task were used to identify the most promising compositions for sub-scale filter element fabrication and testing. In addition to laboratory measurements of permeability and strength, exposure testing in a coal combustion environment was performed to asses the thermo-chemical stability of the CFCC materials. Four candidate compositions were fabricated into sub-scale filter elements with integral flange and a closed end. Following the 250 hour exposure test in a circulating fluid bed combustor, the retained strength ranged from 70 t 145 percent of the as-fabricated strength. The post-test samples exhibited non-catastrophic failure behavior in contrast to the brittle failure exhibited by monolithic materials. Filter fabrication development continued in a filter improvement and cost reduction task that resulted in an improved fiber architecture, the production of a net shape flange, and an improved low cost bond. These modifications were incorporated into the process and used to fabricate 50 full-sized filter elements for testing in demonstration facilities in Karhula, Finland and at the Power Systems Development Facility (PSDF) in Wilsonville, AL. After 581 hours of testing in the Karhula facility, the elements retained approximately 87 percent of their as-fabricated strength. In addition, mechanical response testing at Virginia Tech provided a further demonstration of the high level of strain tolerance of the vacuum wound filter elements. Additional testing in the M. W. Kellogg unit at the PSDF has accumulated over 1800 hours of coal firing at temperatures of 760 C including a severe thermal upset that resulted in the failure of several monolithic oxide elements. No failures of any kind have been reported for the MTI CFCC elements in either of these test campaigns. Additional testing is planned at the M. W. Kellogg unit and Foster Wheeler unit at the PSDF over the next year in order to qualify for consideration for the Lakeland PCFB. Process scale-up issues have been identified and manufacturing plans are being evaluated to meet the needs of future demand.

RICHARD A. WAGNER

1998-09-04T23:59:59.000Z

Note: This page contains sample records for the topic "hydrothermal hot water" 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

The Hydrothermal Chemistry of Gold, Arsenic, Antimony, Mercury and Silver  

SciTech Connect (OSTI)

A comprehensive thermodynamic database based on the Helgeson-Kirkham-Flowers (HKF) equation of state was developed for metal complexes in hydrothermal systems. Because this equation of state has been shown to accurately predict standard partial molal thermodynamic properties of aqueous species at elevated temperatures and pressures, this study provides the necessary foundation for future exploration into transport and depositional processes in polymetallic ore deposits. The HKF equation of state parameters for gold, arsenic, antimony, mercury, and silver sulfide and hydroxide complexes were derived from experimental equilibrium constants using nonlinear regression calculations. In order to ensure that the resulting parameters were internally consistent, those experiments utilizing incompatible thermodynamic data were re-speciated prior to regression. Because new experimental studies were used to revise the HKF parameters for H2S0 and HS-1, those metal complexes for which HKF parameters had been previously derived were also updated. It was found that predicted thermodynamic properties of metal complexes are consistent with linear correlations between standard partial molal thermodynamic properties. This result allowed assessment of several complexes for which experimental data necessary to perform regression calculations was limited. Oxygen fugacity-temperature diagrams were calculated to illustrate how thermodynamic data improves our understanding of depositional processes. Predicted thermodynamic properties were used to investigate metal transport in Carlin-type gold deposits. Assuming a linear relationship between temperature and pressure, metals are predicted to predominantly be transported as sulfide complexes at a total aqueous sulfur concentration of 0.05 m. Also, the presence of arsenic and antimony mineral phases in the deposits are shown to restrict mineralization within a limited range of chemical conditions. Finally, at a lesser aqueous sulfur concentration of 0.01 m, host rock sulfidation can explain the origin of arsenic and antimony minerals within the paragenetic sequence.

Bessinger, Brad; Apps, John A.

2003-03-23T23:59:59.000Z

482

Geothermal-resource assessment of the Steamboat-Routt Hot Springs area, Colorado. Resources Series 22  

SciTech Connect (OSTI)

An assessment of the Steamboat Springs region in northwest Colorado was initiated and carried out in 1980 and 1981. The goal of this program was to delineate the geological features controlling the occurrence of the thermal waters (temperatures in excess of 68/sup 0/F (20/sup 0/C)) in this area at Steamboat Springs and 8 miles (12.8 km) north at Routt Hot Springs. Thermal waters from Heart Spring, the only developed thermal water source in the study area, are used in the municipal swimming pool in Steamboat Springs. The assessment program was a fully integrated program consisting of: dipole-dipole, Audio-magnetotelluric, telluric, self potential and gravity geophysical surveys, soil mercury and soil helium geochemical surveys; shallow temperature measurements; and prepartion of geological maps. The investigation showed that all the thermal springs appear to be fault controlled. Based on the chemical composition of the thermal waters it appears that Heart Spring in Steamboat Springs is hydrologically related to the Routt Hot Springs. This relationship was further confirmed when it was reported that thermal waters were encountered during the construction of the new high school in Strawberry Park on the north side of Steamboat Springs. In addition, residents stated that Strawberry Park appears to be warmer than the surrounding country side. Geological mapping has determined that a major fault extends from the Routt Hot Springs area into Strawberry Park.

Pearl, R.H.; Zacharakis, T.G.; Ringrose, C.D.

1983-01-01T23:59:59.000Z

483

Air Conditioner Efficiency Under Hot Dry and Hot Humid Conditions - The Utility Perspective  

E-Print Network [OSTI]

Air Conditioner Efficiency under Hot Dry and Hot Humid Conditions - The Utility Perspective Ammi Amarnath Technical Leader, Energy Efficiency & Demand Response Program Electric Power Research Institute 3420 Hillview Avenue Palo Alto, CA... are summarized below. Recommendations ? Establish a utility and energy efficiency agency coordinating council for regional standards; ? Identify regional centers to provide the institutional support; ? Develop recommended best practices for regionally based...

Amarnath, A.

484

Hot Work Procedures The Hot Work reviewing process is established to prevent ignition of combustible and  

E-Print Network [OSTI]

Hot Work Procedures Purpose The Hot Work reviewing process is established to prevent ignition requirements when applicable: · Within 35 feet of work: o Remove combustible/flammable materials, dust, lint Eliminate explosive atmosphere. o Cover fixed combustibles with fire resistive covers, guards, or shields. o

de Lijser, Peter

485

Hydrothermal Growth of Mesoporous SBA-15 Silica in the Presence of PVP-Stabilized Pt Nanoparticles: Synthesis,  

E-Print Network [OSTI]

Hydrothermal Growth of Mesoporous SBA-15 Silica in the Presence of PVP-Stabilized Pt Nanoparticles hydrothermal synthesis. Characterization of the Pt/SBA-15 catalysts suggests that Pt particles are located are responsible for ethane decomposition to surface carbon. The ability to design catalytic structures

Yang, Peidong

486

PII S0016-7037(01)00878-X Effect of fluidsediment reaction on hydrothermal fluxes of major elements,  

E-Print Network [OSTI]

PII S0016-7037(01)00878-X Effect of fluid­sediment reaction on hydrothermal fluxes of major of the Juan de Fuca Ridge, reaction between upwelling basement fluid and sediment alters hydrothermal fluxes Fe(III)-(hydr)oxide, and precipitation of calcite, carbonate fluorapatite, and amorphous Fe

Fisher, Andrew

487

INFLUENCE OF D.I.C HYDROTHERMAL PROCESS CONDITIONS ON THE GELATINIZATION PROPERTIES OF STANDARD MAIZE STARCH  

E-Print Network [OSTI]

INFLUENCE OF D.I.C HYDROTHERMAL PROCESS CONDITIONS ON THE GELATINIZATION PROPERTIES OF STANDARD ABSTRACT Standard maize starch was hydrothermally treated at residual moisture content (~12 %) by Instantaneous Controlled Pressure Drop for various pressure levels and processing times. In order to examine

Paris-Sud XI, Université de

488

Synthesis and Characterization of Ag-or Sb-Doped ZnO Nanorods by a Facile Hydrothermal Route  

E-Print Network [OSTI]

Synthesis and Characterization of Ag- or Sb-Doped ZnO Nanorods by a Facile Hydrothermal Route Oleg Stefan Cel Mare BouleVard, MD-2004 Chisinau, Republic of MoldoVa, AdVanced Materials Processing ZnO nanorods doped with Ag and Sb have been synthesized by a facile hydrothermal technique. Crystal

Kik, Pieter

489

Process Design and Economics for the Conversion of Algal Biomass to Hydrocarbons: Whole Algae Hydrothermal Liquefaction and Upgrading  

SciTech Connect (OSTI)

This report provides a preliminary analysis of the costs associated with converting whole wet algal biomass into primarily diesel fuel. Hydrothermal liquefaction converts the whole algae into an oil that is then hydrotreated and distilled. The secondary aqueous product containing significant organic material is converted to a medium btu gas via catalytic hydrothermal gasification.

Jones, Susanne B.; Zhu, Yunhua; Anderson, Daniel B.; Hallen, Richard T.; Elliott, Douglas C.; Schmidt, Andrew J.; Albrecht, Karl O.; Hart, Todd R.; Butcher, Mark G.; Drennan, Corinne; Snowden-Swan, Lesley J.; Davis, Ryan; Kinchin, Christopher

2014-03-20T23:59:59.000Z

490

Economics of Developing Hot Stratigraphic Reservoirs  

SciTech Connect (OSTI)

Stratigraphic geothermal reservoirs at 3 4 km depth in high heat-flow basins are capable of sustaining 100 MW-scale power plants at about 10 c/kWh. This paper examines the impacts on the levelized cost of electricity (LCOE) of reservoir depth and temperature, reservoir productivity, and drillhole/casing options. For a reservoir at 3 km depth with a moderate productivity index by hydrothermal reservoir standards (about 50 L/s/MPa, 5.6 gpm/psi), an LCOE of 10c/kWh requires the reservoir to be at about 200C. This is the upper temperature limit for pumps. The calculations assume standard hydrothermal drilling costs, with the production interval completed with a 7 inch liner in an 8.5 inch hole. If a reservoir at 4 km depth has excellent permeability characteristics with a productivity index of 100 L/s/MPa (11.3 gpm/psi), then the LCOE is about 11 c/kWh assuming the temperature decline rate with development is not excessive (< 1%/y, with first thermal breakthrough delayed by about 10 years). Completing wells with modest horizontal legs (e.g. several hundred meters) may be important for improving well productivity because of the naturally high, sub-horizontal permeability in this type of reservoir. Reducing the injector/producer well ratio may also be cost-effective if the injectors are drilled as larger holes.

Greg Mines; Hillary Hanson; Rick Allis; Joseph Moore

2014-09-01T23:59:59.000Z

491

Extracting hot carriers from photoexcited semiconductor nanocrystals  

SciTech Connect (OSTI)

This research program addresses a fundamental question related to the use of nanomaterials in solar energy -- namely, whether semiconductor nanocrystals (NCs) can help surpass the efficiency limits, the so-called Shockley-Queisser limit, in conventional solar cells. In these cells, absorption of photons with energies above the semiconductor bandgap generates hot charge carriers that quickly cool to the band edges before they can be utilized to do work; this sets the solar cell efficiency at a limit of ~31%. If instead, all of the energy of the hot carriers could be captured, solar-to-electric power conversion efficiencies could be increased, theoretically, to as high as 66%. A potential route to capture this energy is to utilize semiconductor nanocrystals. In these materials, the quasi-continuous conduction and valence bands of the bulk semiconductor become discretized due to confinement of the charge carriers. Consequently, the energy spacing between the electronic levels can be much larger than the highest phonon frequency of the lattice, creating a phonon bottleneck wherein hot-carrier relaxation is possible via slower multiphonon emission. For example, hot-electron lifetimes as long as ~1 ns have been observed in NCs grown by molecular beam epitaxy. In colloidal NCs, long lifetimes have been demonstrated through careful design of the nanocrystal interfaces. Due to their ability to slow electronic relaxation, semiconductor NCs can in principle enable extraction of hot carriers before they cool to the band edges, leading to more efficient solar cells.

Zhu, Xiaoyang

2014-12-10T23:59:59.000Z

492

J. Phys. III France 6 (1996) 843-852 JULY 1996, PAGE 843 Dielectric Properties of Hydrothermal Nickel-Zinc Ferrites  

E-Print Network [OSTI]

knowledge, no study of the dielectric behavior of ferrites obtained by hydrothermal process has been by hydrothermal process and sintered these powders without any sinter- ing aids. A detailed investigationJ. Phys. III France 6 (1996) 843-852 JULY 1996, PAGE 843 Dielectric Properties of Hydrothermal

Boyer, Edmond

493

Hydrothermal formation of Clay-Carbonate alteration assemblages in the Nili Fossae region of Mars  

E-Print Network [OSTI]

The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) has returned observations of the Nili Fossae region indicating the presence of Mg- carbonate in small (carbonate-bearing units. We applied absorption band mapping techniques to investigate a range of possible phyllosilicate and carbonate minerals that could be present in the Nili Fossae region. We also describe a clay-carbonate hydrothermal alteration mineral assemblage in the Archean Warrawoona Group of Western Australia that is a potential Earth analog to the Nili Fossae carbonate-bearing rock units. We discuss the geological and biological implications for hydrothermal processes on Noachian Mars.

Brown, Adrian J; Baldridge, Alice M; Crowley, James K; Bridges, Nathan T; Thomson, Bradley J; Marion, Giles M; Filho, Carlos R de Souza; Bishop, Janice L

2014-01-01T23:59:59.000Z

494

Hydrothermal alteration at the Panorama Formation, North Pole Dome, Pilbara Craton, Western Australia  

E-Print Network [OSTI]

An airborne hyperspectral remote sensing dataset was obtained of the North Pole Dome region of the Pilbara Craton in October 2002. It has been analyzed for indications of hydrothermal minerals. Here we report on the identification and mapping of hydrothermal minerals in the 3.459 Ga Panorama Formation and surrounding strata. The spatial distribution of a pattern of subvertical pyrophyllite rich veins connected to a pyrophyllite rich palaeohorizontal layer is interpreted to represent the base of an acid-sulfate epithermal system that is unconformably overlain by the stromatolitic 3.42 Ga Strelley Pool Chert.

Brown, Adrian J; Walter, Malcolm R

2014-01-01T23:59:59.000Z

495

Case studies of low-to-moderate temperature hydrothermal energy development  

SciTech Connect (OSTI)

Six development projects are examined that use low- (less than 90/sup 0/C (194/sup 0/F)) to-moderate (90 to 150/sup 0/C (194 to 302/sup 0/F)) temperature geothermal resources. These projects were selected from 22 government cost-shared projects to illustrate the many facets of hydrothermal development. The case studies describe the history of this development, its exploratory methods, and its resource definition, as well as address legal, environmental, and institutional constraints. A critique of procedures used in the development is also provided and recommendations for similar future hydrothermal projects are suggested.

Not Available

1981-10-01T23:59:59.000Z

496

Hydrothermally treated coals for pulverized coal injection. Technical progress report, April 1995--June 1995  

SciTech Connect (OSTI)

This project is investigating the suitability of hydrothermally dried low-rank coals for pulverized fuel injection into blast furnaces in order to reduce coke consumption. Coal samples from the Beluga coal field and Usibelli Coal Mine, Alaska, are being used for the study. Crushed coal samples were hydrothermally treated at three temperatures, 275, 300 and 325{degrees}C, for residence times ranging from 10 to 120 minutes. Products have been characterized to determine their suitability for pulverized coal injection. Characterization includes proximate and ultimate analyses, vitrinite reflectance, TGA reactivity and thermochemical modeling. A literature survey has been conducted.

Walsh, D.E.; Rao, P.D.; Ogunsola, O.; Lin, H.K.

1995-07-01T23:59:59.000Z

497

Evolution Of Hydrothermal Waters At Mount St Helens, Washington, Usa | Open  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSan Leandro,Law andEnergyEvogy Inc Jump to:

498

Hot gas filter and system assembly  

DOE Patents [OSTI]

A filter element for separating fine dirty particles from a hot gas. The filter element comprises a first porous wall and a second porous wall. Each porous wall has an outer surface and an inner surface. The first and second porous walls being coupled together thereby forming a substantially closed figure and open at one end. The open end is formed to be coupled to a hot gas clean up system support structure. The first and second porous walls define a channel beginning at the open end and terminate at the closed end through which a filtered clean gas can flow through and out into the clean gas side of a hot gas clean up system.

Lippert, Thomas Edwin (Murrysville, PA); Palmer, Kathryn Miles (Monroeville, PA); Bruck, Gerald Joseph (Murrysville, PA); Alvin, Mary Anne (Pittsburgh, PA); Smeltzer, Eugene E. (Export, PA); Bachovchin, Dennis Michael (Murrysville, PA)

1999-01-01T23:59:59.000Z

499

Radioactive hot cell access hole decontamination machine  

DOE Patents [OSTI]

Radioactive hot cell access hole decontamination machine. A mobile housing has an opening large enough to encircle the access hole and has a shielding door, with a door opening and closing mechanism, for uncovering and covering the opening. The housing contains a shaft which has an apparatus for rotating the shaft and a device for independently translating the shaft from the housing through the opening and access hole into the hot cell chamber. A properly sized cylindrical pig containing wire brushes and cloth or other disks, with an arrangement for releasably attaching it to the end of the shaft, circumferentially cleans the access hole wall of radioactive contamination and thereafter detaches from the shaft to fall into the hot cell chamber.

Simpson, William E. (Richland, WA)

1982-01-01T23:59:59.000Z

500

Multi-cylinder hot gas engine  

DOE Patents [OSTI]

A multi-cylinder hot gas engine having an equal angle, V-shaped engine block in which two banks of parallel, equal length, equally sized cylinders are formed together with annular regenerator/cooler units surrounding each cylinder, and wherein the pistons are connected to a single crankshaft. The hot gas engine further includes an annular heater head disposed around a central circular combustor volume having a new balanced-flow hot-working-fluid manifold assembly that provides optimum balanced flow of the working fluid through the heater head working fluid passageways which are connected between each of the cylinders and their respective associated annular regenerator units. This balanced flow provides even heater head temperatures and, therefore, maximum average working fluid temperature for best operating efficiency with the use of a single crankshaft V-shaped engine block.

Corey, John A. (North Troy, NY)

1985-01-01T23:59:59.000Z