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


1

Subsea Pumped Hydro Storage -A Technology Assessment.  

E-Print Network [OSTI]

??A novel technology for energy storage called Subsea Pumped Hydro Storage (SPHS) has been evaluated from a techno-economical point of view. Intermittent renewable energy sources… (more)

Falk, Johan

2013-01-01T23:59:59.000Z

2

Role of Pumped Storage Hydro Resources in Electricity Markets and System Operation: Preprint  

SciTech Connect (OSTI)

The most common form of utility- sized energy storage system is the pumped storage hydro system. Originally, these types of storage systems were economically viable simply because they displace more expensive generating units. However, over time, as those expensive units became more efficient and costs declined, pumped hydro storage units no longer have the operational edge. As a result, in the current electricity market environment, pumped storage hydro plants are struggling. To offset this phenomenon, certain market modifications should be addressed. This paper will introduce some of the challenges faced by pumped storage hydro plants in today's markets and purpose some solutions to those problems.

Ela, E.; Kirby, B.; Botterud, A.; Milostan, C.; Krad, I.; Koritarov, V.

2013-05-01T23:59:59.000Z

3

An Integrated Approach for Optimal Coordination of Wind Power and Hydro Pumping Storage  

E-Print Network [OSTI]

1 An Integrated Approach for Optimal Coordination of Wind Power and Hydro Pumping Storage Edgardo D of the integrated system. Keywords: wind power, generation dispatch, pumped storage, hydro generation, deterministic is the active power delivered by the wind-hydro plant, during interval i; PHi is the active power produced

Paris-Sud XI, Université de

4

Author's personal copy Opportunities and barriers to pumped-hydro energy storage in the United States  

E-Print Network [OSTI]

available commercially for grid-tied electricity storage, pumped- hydro energy storage (PHES) and compressed air energy storage (CAES). Of the two, PHES is far more widely adopted. In the United StatesAuthor's personal copy Opportunities and barriers to pumped-hydro energy storage in the United

Jackson, Robert B.

5

MODELING OF HYDRO-PNEUMATIC ENERGY STORAGE USING PUMP TURBINES  

E-Print Network [OSTI]

of delivered power and energy capacities. Hydraulic storage or compressed air energy storage (CAES) can be used-turbine to displace a virtual liquid piston for air compression (Figure 1). A dynamic model of the storage system. It is based upon air compression storage using a hydraulic drive, which allows relatively high conversion

Paris-Sud XI, Université de

6

Quantifying the Operational Benefits of Conventional and Advanced Pumped Storage Hydro on Reliability and Efficiency: Preprint  

SciTech Connect (OSTI)

Pumped storage hydro (PSH) plants have significant potential to provide reliability and efficiency benefits in future electric power systems with high penetrations of variable generation. New PSH technologies, such as adjustable-speed PSH, have been introduced that can also present further benefits. This paper demonstrates and quantifies some of the reliability and efficiency benefits afforded by PSH plants by utilizing the Flexible Energy Scheduling Tool for the Integration of Variable generation (FESTIV), an integrated power system operations tool that evaluates both reliability and production costs.

Krad, I.; Ela, E.; Koritarov, V.

2014-07-01T23:59:59.000Z

7

System design and manufacturability of concrete spheres for undersea pumped hydro energy or hydrocarbon storage  

E-Print Network [OSTI]

Offshore wind and energy storage have both gained considerable attention in recent years as more wind turbine capacity is installed, less attractive/economical space remains for onshore wind, and load-leveling issues make ...

Fennell, Gregory E. (Gregory Edmund)

2011-01-01T23:59:59.000Z

8

Pumped Hydro | 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: EnergyPotentialUrbanUtilityScalePVCapacityPulaski County, Kentucky: Energy Resources Jump to:Pulte JumpPumped

9

HEITSCH, R OMISCH --HYDRO-STORAGE SUBPROBLEMS IN POWER GENERATION 1 Hydro-Storage Subproblems in Power Generation  

E-Print Network [OSTI]

HEITSCH, R ¨OMISCH -- HYDRO-STORAGE SUBPROBLEMS IN POWER GENERATION 1 Hydro-Storage Subproblems that owns a hydro-thermal generation sys- tem and trades on the power market often lead to complex stochas- tic optimization problems. We present a new approach to solving stochastic hydro-storage subproblems

Römisch, Werner

10

Underground pumped hydroelectric storage  

SciTech Connect (OSTI)

Underground pumped hydroelectric energy storage was conceived as a modification of surface pumped storage to eliminate dependence upon fortuitous topography, provide higher hydraulic heads, and reduce environmental concerns. A UPHS plant offers substantial savings in investment cost over coal-fired cycling plants and savings in system production costs over gas turbines. Potential location near load centers lowers transmission costs and line losses. Environmental impact is less than that for a coal-fired cycling plant. The inherent benefits include those of all pumped storage (i.e., rapid load response, emergency capacity, improvement in efficiency as pumps improve, and capacity for voltage regulation). A UPHS plant would be powered by either a coal-fired or nuclear baseload plant. The economic capacity of a UPHS plant would be in the range of 1000 to 3000 MW. This storage level is compatible with the load-leveling requirements of a greater metropolitan area with population of 1 million or more. The technical feasibility of UPHS depends upon excavation of a subterranean powerhouse cavern and reservoir caverns within a competent, impervious rock formation, and upon selection of reliable and efficient turbomachinery - pump-turbines and motor-generators - all remotely operable.

Allen, R.D.; Doherty, T.J.; Kannberg, L.D.

1984-07-01T23:59:59.000Z

11

Optimizing Trading Decisions for Hydro Storage Systems using ...  

E-Print Network [OSTI]

Trading with a system of hydro storage plants in a wholesale electricity market involves many decisions ...... prices due to higher demand for heating and cooling.

2012-09-19T23:59:59.000Z

12

BAdvanced adiabatic compressed air energy storage for the article has been accepted for inclusion  

E-Print Network [OSTI]

advantages, only compressed air energy storage (“CAES”) has the storage capacity of pumped hydro, but with

Chris Bullough; Christoph Gatzen; Christoph Jakiel; Martin Koller; Andreas Nowi; Stefan Zunft; Alstom Power; Technology Centre; Leicester Le Lh

2004-01-01T23:59:59.000Z

13

SUPERCONDUCTING MAGNETIC ENERGY STORAGE  

E-Print Network [OSTI]

hydro, compressed air, and battery energy storage are allenergy storage sys tem s suc h as pumped hydro and compressed air.

Hassenzahl, W.

2011-01-01T23:59:59.000Z

14

Bangor Hydro Electric Company- Residential and Small Commercial Heat Pump Program (Maine)  

Broader source: Energy.gov [DOE]

Bangor Hydro Electric Company offers a two-tiered incentive program for residential and small commercial customers. Mini-Split Heat Pumps are eligible for a rebate of $600, as well as a loan to...

15

Hydro-mechanical modelling of geological CO2 storage and the study of possible caprock fracture mechanisms  

E-Print Network [OSTI]

Hydro-mechanical modelling of geological CO2 storage and the study of possible caprock fracture element modelling of a hypothetical underground carbon dioxide (CO2) storage operation. The hydro

16

MISO Energy Storage Study DRAFT Scope MISO Page 1  

E-Print Network [OSTI]

, compressed air, and pumped hydro energy storage. This study will explore reliability, market, and planning such as battery storage, compressed air energy storage (CAES), and pumped hydro storage 2. Identify the valueMISO Energy Storage Study DRAFT Scope MISO Page 1 MISO Energy Storage Study DRAFT Scope July 19

17

Pumped Storage Hydropower (Project Development Support)—Geotechnical Investigation and Value Stream Analysis for the Iowa Hill Pumped-Storage Development  

Broader source: Energy.gov [DOE]

Pumped Storage Hydropower (Project Development Support)—Geotechnical Investigation and Value Stream Analysis for the Iowa Hill Pumped-Storage Development

18

2014 Storage Plan Assessment Recommendations for the U.S. Department...  

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

for storage interconnecting at the distribution level, pumped hydro (PHS) and compressed air (CAES) energy storage technologies, power electronics costs, and regulatory and market...

19

An algorithm for scheduling a large pumped storage plant  

SciTech Connect (OSTI)

The Michigan Electric Coordination Center (MEPCC), operated by Consumers Power and Detroit Edison Companies, has the responsibility for scheduling the Ludington pumped storage plant. Ludington has an extremely large economic effect on the Consumers Power and Detroit Edison Companies' system due to its size (over 1800 MW net demonstrated generating capability). This paper presents a dynamic programming algorithm for scheduling large pumped storage plants and shows how this method can be coordinated with the commitment of the thermal units of the system.

Cohen, A.I.; Wan, S.H.

1985-08-01T23:59:59.000Z

20

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

Römisch, Werner

Note: This page contains sample records for the topic "hydro pumped storage" 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

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.

22

Lifecycle Cost Analysis of Hydrogen Versus Other Technologies for Electrical Energy Storage  

SciTech Connect (OSTI)

This report presents the results of an analysis evaluating the economic viability of hydrogen for medium- to large-scale electrical energy storage applications compared with three other storage technologies: batteries, pumped hydro, and compressed air energy storage (CAES).

Steward, D.; Saur, G.; Penev, M.; Ramsden, T.

2009-11-01T23:59:59.000Z

23

Thermodynamic analysis of pumped thermal electricity storage  

E-Print Network [OSTI]

considered in France [5]. We include a brief description of a PTES system here since it is a not widely known technology. The general principle of operation is straightforward and is illustrated in Fig. 1. The main components are a compressor (C... and compressor respectively.) The heat engine and heat pump operate on the Joule-Brayton and reverse Joule-Brayton cycles respectively, the temperature-entropy (T-s) diagram for which is shown on the right of the figure for the case of ideal (reversible...

White, Alexander; Parks, Geoff; Markides, Christos N.

2012-03-24T23:59:59.000Z

24

Pumped storage for hydroelectric power. (Latest citations from Fluidex (Fluid Engineering Abstracts) database). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations concerning the design, development, construction, and characteristics of surface and underground pumped storage for hydroelectric power. Pumped storage projects and facilities worldwide are referenced. There is some consideration of research and experimental results of pumped storage studies, as well as modeling. (Contains a minimum of 198 citations and includes a subject term index and title list.)

Not Available

1993-10-01T23:59:59.000Z

25

Pumped storage for hydroelectric power. (Latest citations from Fluidex data base). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations concerning the design, development, construction, and characteristics of surface and underground pumped storage for hydroelectric power. Pumped storage projects and facilities worldwide are referenced. There is some consideration of research and experimental results of pumped storage studies, as well as modeling. (Contains a minimum of 192 citations and includes a subject term index and title list.)

Not Available

1992-09-01T23:59:59.000Z

26

Report on technical feasibility of underground pumped hydroelectric storage in a marble quarry site in the Northeast United States  

SciTech Connect (OSTI)

The technical and economic aspects of constructing a very high head underground hydroelectric pumped storage were examined at a prefeasibility level. Excavation of existing caverns in the West Rutland Vermont marble quarry would be used to construct the underground space. A plant capacity of 1200 MW and 12 h of continuous capacity were chosen as plant operating conditions. The site geology, plant design, and electrical and mechanical equipment required were considered. The study concluded that the cost of the 1200 MW underground pumped storage hydro electric project at this site even with the proposed savings from marketable material amounts to between $581 and $595 per kilowatt of installed capacity on a January 1982 pricing level. System studies performed by the planning group of the New England Power System indicate that the system could economically justify up to about $442 per kilowatt on an energy basis with no credit for capacity. To accommodate the plant with the least expensive pumping energy, a coal and nuclear generation mix of approximately 65% would have to be available before the project becomes feasible. It is not expected that this condition can be met before the year 2000 or beyond. It is therefore concluded that the West Rutland underground pumped storage facility is uneconomic at this time. Several variables however could have marked influence on future planning and should be examined on periodic basis.

Chas. T. Main, Inc.

1982-03-01T23:59:59.000Z

27

Chemical heat pump and chemical energy storage system  

DOE Patents [OSTI]

A chemical heat pump and storage system employs sulfuric acid and water. In one form, the system includes a generator and condenser, an evaporator and absorber, aqueous acid solution storage and water storage. During a charging cycle, heat is provided to the generator from a heat source to concentrate the acid solution while heat is removed from the condenser to condense the water vapor produced in the generator. Water is then stored in the storage tank. Heat is thus stored in the form of chemical energy in the concentrated acid. The heat removed from the water vapor can be supplied to a heat load of proper temperature or can be rejected. During a discharge cycle, water in the evaporator is supplied with heat to generate water vapor, which is transmitted to the absorber where it is condensed and absorbed into the concentrated acid. Both heats of dilution and condensation of water are removed from the thus diluted acid. During the discharge cycle the system functions as a heat pump in which heat is added to the system at a low temperature and removed from the system at a high temperature. The diluted acid is stored in an acid storage tank or is routed directly to the generator for reconcentration. The generator, condenser, evaporator, and absorber all are operated under pressure conditions specified by the desired temperature levels for a given application. The storage tanks, however, can be maintained at or near ambient pressure conditions. In another form, the heat pump system is employed to provide usable heat from waste process heat by upgrading the temperature of the waste heat.

Clark, Edward C. (Woodinville, WA); Huxtable, Douglas D. (Bothell, WA)

1985-08-06T23:59:59.000Z

28

PRIMAL AND DUAL METHODS FOR UNIT COMMITMENT IN A HYDRO-THERMAL POWER SYSTEM  

E-Print Network [OSTI]

PRIMAL AND DUAL METHODS FOR UNIT COMMITMENT IN A HYDRO-THERMAL POWER SYSTEM R. Gollmer1 , A. Moller comprising thermal and pumped-storage hydro units a large-scale mixed-integer optimization model is developed aims at the cost optimal scheduling of on/o decisions and output levels for generating units. The power

Römisch, Werner

29

Underground pumped storage scheme in the Bukit Timah granite of Singapore  

SciTech Connect (OSTI)

Pumped storage is an energy storage method that involves the pumping of water from a lower reservoir to an upper reservoir during off-peak period using low cost power and releasing of the water from the upper reservoir to produce electricity during peak load period. Because of the very small and relatively flat land area of Singapore, a conventional surface pumped storage plant is not feasible. A pumped storage plant can be constructed here by siting the upper reservoir in one of the many abandoned granite quarries and by placing the lower reservoir and the powerhouse underground in the Bukit Timah granite, which is sound, massive and impervious. The capital costs for a pumped storage plant could be the same as those of an oil-fired plant of a comparable size. When the very high cost of land in Singapore is taken into account, an underground pumped storage scheme for peaking purposes becomes attractive. 7 refs., 4 figs., 3 tabs.

Wong, I.H. [Nanyang Technological Univ. (Singapore)] [Nanyang Technological Univ. (Singapore)

1996-10-01T23:59:59.000Z

30

Design, construction and testing of an ocean renewable energy storage scaled prototype  

E-Print Network [OSTI]

The concept for a new form of pumped storage hydro is being developed within the Precision Engineering Research Group at MIT: the Ocean Renewable Energy Storage (ORES) project. Large, hollow concrete spheres are created, ...

Meredith, James D. C. (James Douglas Charles)

2012-01-01T23:59:59.000Z

31

Numerical Investigation of Stratified Thermal Storage Tank Applied in Adsorption Heat Pump Cycle.  

E-Print Network [OSTI]

??With the aid of the TES (Thermal Energy Storage) in the adsorption heat pump cycle, the COP of the system can be improved. Different geometrical… (more)

Taheri, Hadi

2014-01-01T23:59:59.000Z

32

Pumped Storage Hydropower (Detailed Analysis to Demonstrate Value...  

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

3modeanlkoritarov20111027.ppt More Documents & Publications Quantifying Fl Value of Hydro in Transmission Grid 2014 Water Power Program Peer Review Compiled Presentations:...

33

Operation and Configuration of a Storage Portfolio via Convex Optimization  

E-Print Network [OSTI]

is equally broad, and includes pumped hydro, compressed air energy storage (CAES), battery energy storage sys; Predictive control; Energy management systems 1. INTRODUCTION We propose the use of multiple storage devices storage. In power systems, energy storage devices are used to mod- ify a given input energy flow to help

34

Operation and Configuration of a Storage Portfolio via Convex Optimization  

E-Print Network [OSTI]

is equally broad, and includes pumped hydro, compressed air energy storage (CAES), battery energy storage sys storage. In power systems, energy storage devices are used to mod- ify a given input energy flow to help synthesize a desired output energy flow. The uses for energy storage devices are extremely broad and include

35

Risk-Based Strategies for Wind/Pumped-Hydro Coordination under Electricity Markets  

E-Print Network [OSTI]

be reduced by coupling the wind farm with energy storage facilities, thus constituting a virtual power plant energy sources (RES). However, the operation of RES units such as wind or solar plants presents the inconve- nience of being intrinsically dependent on the variability of the wind or solar resource

Boyer, Edmond

36

Coupled Operation of a Wind Farm and Pumped Storage Facility: Techno-Economic Modelling and Stochastic Optimization  

E-Print Network [OSTI]

Coupled Operation of a Wind Farm and Pumped Storage Facility: Techno-Economic Modelling Operation of a Wind Farm and Pumped Storage Facility: Techno-Economic Modelling and Stochastic Optimization a stochastic programming approach to the techno-economic analysis of a wind farm coupled with a pumped storage

Victoria, University of

37

Pumped Hydroelectricity and Utility-Scale Batteries for Reserve Electricity Generation in New Zealand.  

E-Print Network [OSTI]

??Non-pumped hydroelectricity-based energy storage in New Zealand has only limited potential to expand to meet projected growth in electricity demand. Seasonal variations of hydro inflows… (more)

Kear, Gareth

2011-01-01T23:59:59.000Z

38

Development of ammonia-sodium bromide heat pump/dual temperature storage concept. Final report  

SciTech Connect (OSTI)

An effective dual temperature heat pump/storage system can be based on the use of ammoniated complex compounds as the storage medium and heat pump working fluid. This report describes the development of an ammoniated complex system, suitable for dual temperature storage, chill storage and heat pumping, as well as the hardware design required for the heat pump/storage operation. Several storage media modifications, heat exchanger designs, and reaction related parameters were investigated in terms of effective heat pumping, dual temperature storage and chill storage characteristics. The modifications were tested in a subscale prototype and compared to the results of the basic experiments performed in Phase I of this project. The computer model developed in Phase I was refined. The sorption reactions and their thermodynamic properties are described as a function of reaction progress allowing coefficient of performance (COP) predictions at varying building loads. A comparison of this system with state-of-the-art thermal storage systems was performed considering the energy density, operating cost, and the environmental impact reflected in building codes.

Rockenfeller, U.

1986-10-01T23:59:59.000Z

39

A Novel Integrated Frozen Soil Thermal Energy Storage and Ground-Source Heat Pump System  

E-Print Network [OSTI]

In this paper, a novel integrated frozen soil thermal energy storage and ground-source heat pump (IFSTS&GSHP) system in which the GHE can act as both cold thermal energy storage device and heat exchanger for GSHP is first presented. The IFSTS...

Jiang, Y.; Yao, Y.; Rong, L.; Ma, Z.

2006-01-01T23:59:59.000Z

40

Enhancing Electrical Supply by Pumped Storage in Tidal Lagoons  

E-Print Network [OSTI]

months of 2006. Thanks to Heriot­Watt University Physics Department. Storage and wind Offshore wind farms the Aluminium plant and the water- purification factory only when the wind blows. A third approach is storage

MacKay, David J.C.

Note: This page contains sample records for the topic "hydro pumped storage" 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

Optimal design of ground source heat pump system integrated with phase change cooling storage tank in an office building  

E-Print Network [OSTI]

Optimal design of ground source heat pump system integrated with phase change cooling storage tank in an office building Na Zhu*, Yu Lei, Pingfang Hu, Linghong Xu, Zhangning Jiang Department of Building Environment and Equipment Engineering... heat pump system integrated with phase change cooling storage technology could save energy and shift peak load. This paper studied the optimal design of a ground source heat pump system integrated with phase change thermal storage tank in an office...

Zhu, N.

2014-01-01T23:59:59.000Z

42

Experimental Research on Solar Assisted Heat Pump Heating System with Latent Heat Storage  

E-Print Network [OSTI]

-reaching meaning of solving energy and environment problems if new type energy conservation and environment protection heating system ? solar assisted ground-source heat pump (SAGHP) heating system with a latent heat storage tank will be practical... was established at the laboratory of construction energy conservation in Harbin Institute of Technology (HIT) in 2004. It added a latent heat storage tank in original SAGHP system. The schematic diagram of the system is shown in Figure 1. The experimental...

Han, Z.; Zheng, M.; Liu, W.; Wang, F.

2006-01-01T23:59:59.000Z

43

Economical Analysis of a Groundwater Source Heat Pump with Water Thermal Storage System  

E-Print Network [OSTI]

The paper is based on a chilled and heat source for the building which has a total area of 140000m2 in the suburb of Beijing. By comparing the groundwater source heat pump of water thermal storage (GHPWTS) with a conventional chilled and heat source...

Zhou, Z.; Xu, W.; Li, J.; Zhao, J.; Niu, L.

2006-01-01T23:59:59.000Z

44

COMPRESSED-AIR ENERGY STORAGE SYSTEMS FOR STAND-ALONE OFF-GRID PHOTOVOLTAIC MODULES  

E-Print Network [OSTI]

COMPRESSED-AIR ENERGY STORAGE SYSTEMS FOR STAND-ALONE OFF-GRID PHOTOVOLTAIC MODULES Dominique materials, flywheels, pumped hydro (PH), superconducting magnetic energy storage (SMES) and compressed air-grid alternative to the large-scale compressed air energy storage systems we propose to examine the viability

Deymier, Pierre

45

PCIM, Nrnberg, may 2003 FLYWHEEL ENERGY STORAGE SYSTEMS IN HYBRID AND  

E-Print Network [OSTI]

-scale storage of the type pumped hydro, compressed air, flow batteries, etc.), or even at the level of potentialPCIM, Nürnberg, may 2003 FLYWHEEL ENERGY STORAGE SYSTEMS IN HYBRID AND DISTRIBUTED ELECTRICITY of the electromechanical storage of energy over long operating cycles (with time constants ranging from several minutes

Boyer, Edmond

46

Development of dual temperature ammines for heat pump latent heat storage application. Final report  

SciTech Connect (OSTI)

Ammoniated Complex Compounds can be used as working fluids in space heating and cooling heat pumps and storage systems. This report describes the theoretical and experimental development of complex compound working fluids for a heat pump-storage system. A computerized data base was developed for the preliminary selection of candidate working fluids. The selected substances were experimentally investigated. Several concepts using two ammoniated complex compounds or one complex compound and the plain ligand were developed. A subscale prototype was built using the NaBr-n NH/sub 3/ complex and NH/sub 3/ as the ligand. Two heat exchanger designs were tested and compared in terms of optimum reaction rates. A computer simulation was written to predict the performance of a complex compound heat pump-storage system. The results were compared with a simulation of a conventional R22 heat pump cycle. The influence of additives in the NaBr-n NH/sub 3/ complex was investigated with respect to the adsorption and desprption rates.

Rockenfeller, U.

1986-03-01T23:59:59.000Z

47

Heat pump water heater and storage tank assembly  

DOE Patents [OSTI]

A water heater and storage tank assembly comprises a housing defining a chamber, an inlet for admitting cold water to the chamber, and an outlet for permitting flow of hot water from the chamber. A compressor is mounted on the housing and is removed from the chamber. A condenser comprises a tube adapted to receive refrigerant from the compressor, and winding around the chamber to impart heat to water in the chamber. An evaporator is mounted on the housing and removed from the chamber, the evaporator being adapted to receive refrigerant from the condenser and to discharge refrigerant to conduits in communication with the compressor. An electric resistance element extends into the chamber, and a thermostat is disposed in the chamber and is operative to sense water temperature and to actuate the resistance element upon the water temperature dropping to a selected level. The assembly includes a first connection at an external end of the inlet, a second connection at an external end of the outlet, and a third connection for connecting the resistance element, compressor and evaporator to an electrical power source.

Dieckmann, John T. (Belmont, MA); Nowicki, Brian J. (Watertown, MA); Teagan, W. Peter (Acton, MA); Zogg, Robert (Belmont, MA)

1999-09-07T23:59:59.000Z

48

A ground-coupled storage heat pump system with waste heat recovery  

SciTech Connect (OSTI)

This paper reports on an experimental single-family residence that was constructed to demonstrate integration of waste heat recovery and seasonal energy storage using both a ventilating and a ground-coupled heat pump. Called the Idaho energy Conservation Technology House, it combines superinsulated home construction with a ventilating hot water heater and a ground coupled water-to-water heat pump system. The ground heat exchangers are designed to economically promote seasonal and waste heat storage. Construction of the house was completed in the spring of 1989. Located in Moscow, Idaho, the house is occupied by a family of three. The 3,500 ft{sup 2} (325 m{sup 2}) two-story house combines several unique sub-systems that all interact to minimize energy consumption for space heating and cooling, and domestic hot water.

Drown, D.C.; Braven, K.R.D. (Univ. of Idaho, ID (US)); Kast, T.P. (Thermal Dynamic Towers, Boulder, CO (US))

1992-02-01T23:59:59.000Z

49

Numerical Simulation of a Latent Heat Storage System of a Solar-Aided Ground Source Heat Pump  

E-Print Network [OSTI]

In this study, the rectangular phase change storage tank (PCST) linked to a solar-aided ground source heat pump (SAGSHP) system is investigated experimentally and theoretically. The container of the phase change material (PCM) is the controlling...

Wang, F.; Zheng, M.; Li, Z.; Lei, B.

2006-01-01T23:59:59.000Z

50

Title COMBINATION OF THERMAL SOLAR COLLECTORS, HEAT PUMP AND THERMAL ENERGY STORAGE FOR DWELLINGS IN BELGIUM.  

E-Print Network [OSTI]

The amount of available solar energy in Belgium is more than sufficient to meet local heat demand for space heating and domestic hot water in a dwelling. However, the timing of both the availability of solar energy and the need for thermal energy, match only to a limited extent. Therefore, compact storage of the surplus of thermal energy is a critical issue. Depending on the temperature at which this energy is available, directly from the sun or indirectly through the storage, different combinations with a heat pump can be considered. By combining solar energy with a heat pump one may benefit on both sides since the fraction of solar energy increases as well as the performance of the heat pump. The aim of this thesis is to select the best out of three configurations that combine thermal solar collectors, heat pump and thermal energy storage for heating purposes in dwellings in Belgium, based on model simulations. Energetic, exergetic and economic criteria are used to evaluate the different configurations, while thermal comfort and domestic hot water tap profiles should be met. One (or more) performance index (indices) is (are) defined enabling an objective comparison between different systems. Today several systems are already commercially available on the international market [4]. Since these systems consist of different components, the system design is a crucial issue. Therefore, special attention should be paid to the sizing of the individual components, the interaction of the components within the global system, and the strategy for operational control. To study the interaction with the building, three types of buildings (already defined in a previous project) are considered.

Contact Raf; De Herdt; Roel De Coninck; Filip Van Den Schoor; Lieve Helsen

51

Room-temperature stationary sodium-ion batteries for large-scale electric energy storage  

E-Print Network [OSTI]

energy and utility applications, such as pump hydro, compressed air, y-wheel and electrochemicalRoom-temperature stationary sodium-ion batteries for large-scale electric energy storage Huilin Pan attention particularly in large- scale electric energy storage applications for renewable energy and smart

Wang, Wei Hua

52

Modeling the heating of the Green Energy Lab in Shanghai by the geothermal heat pump combined with the solar thermal energy and ground energy storage.  

E-Print Network [OSTI]

?? This work involves the study of heating systems that combine solar collectors, geothermal heat pumps and thermal energy storage in the ground. Solar collectors… (more)

Yu, Candice Yau May

2012-01-01T23:59:59.000Z

53

CO{sub 2} Geologic Storage: Coupled Hydro-Chemo-Thermo-Mechanical Phenomena - From Pore-scale Processes to Macroscale Implications -  

SciTech Connect (OSTI)

Global energy consumption will increase in the next decades and it is expected to largely rely on fossil fuels. The use of fossil fuels is intimately related to CO{sub 2} emissions and the potential for global warming. Geological CO{sub 2} storage aims to mitigate the global warming problem by sequestering CO{sub 2} underground. Coupled hydro-chemo-mechanical phenomena determine the successful operation and long term stability of CO{sub 2} geological storage. This research explores coupled phenomena, identifies different zones in the storage reservoir, and investigates their implications in CO{sub 2} geological storage. In particular, the research: Explores spatial patterns in mineral dissolution and precipitation (comprehensive mass balance formulation); experimentally determines the interfacial properties of water, mineral, and CO{sub 2} systems (including CO{sub 2}-water-surfactant mixtures to reduce the CO{sub 2}- water interfacial tension in view of enhanced sweep efficiency); analyzes the interaction between clay particles and CO{sub 2}, and the response of sediment layers to the presence of CO{sub 2} using specially designed experimental setups and complementary analyses; couples advective and diffusive mass transport of species, together with mineral dissolution to explore pore changes during advection of CO{sub 2}-dissolved water along a rock fracture; upscales results to a porous medium using pore network simulations; measures CO{sub 2} breakthrough in highly compacted fine-grained sediments, shale and cement specimens; explores sealing strategies; and experimentally measures CO{sub 2}-CH{sub 4} replacement in hydrate-bearing sediments during. Analytical, experimental and numerical results obtained in this study can be used to identify optimal CO{sub 2} injection and reservoir-healing strategies to maximize the efficiency of CO{sub 2} injection and to attain long-term storage.

Santamarina, J. Carlos

2013-05-31T23:59:59.000Z

54

Evaluation of advanced turbomachinery for underground pumped hydroelectric storage. Part 3. Multistage unregulated pump/turbines for operating heads of 1000 to 1500 m  

SciTech Connect (OSTI)

This is the final report in a series of three on studies of advanced hydraulic turbomachinery for underground pumped hydroelectric storage. All three reports address Francis-type, reversible pump/turbines. The first report covered single-stage regulated units; the second report covered two-stage regulated units; the present report covers multistage unregulated units. Multistage unregulated pump/turbines offer an economically attractive option for heads of 1000 to 1500 m. The feasibility of developing such machines for capacities up to 500 MW and operating heads up to 1500 m has been evaluated. Preliminary designs have been generated for six multistage pump/turbines. The designs are for nominal capacities of 350 and 500 MW and for operating heads of 1000, 1250, and 1500 m. Mechanical, hydraulic, and economic analyses indicate that these machines will behave according to the criteria used to design them and that they can be built at a reasonable cost with no unsolvable problems. Efficiencies of 85.8% and 88.5% in the generating and pumping modes, respectively, can be expected for the 500-MW, 1500-m unit. Performances of the other five machines are at least comparable, and usually better. Over a 1000 to 1500-m head range, specific $/kW costs of the pump/turbines in mid-1978 US dollars vary from 19.0 to 23.1 for the 500-MW machines, and from 21.0 to 24.1 for the 350-MW machines.

Frigo, A.A.; Pistner, C.

1980-08-01T23:59:59.000Z

55

Methanol-based heat pump for solar heating, cooling, and storage. Phase III. Final report  

SciTech Connect (OSTI)

The reaction of CH/sub 3/OH vapor with solid (pellet) CaCl/sub 2/ to form the solid phase compound CaCll/sub 2/ . 2CH/sub 3/OH can be used as the basis of a combined solar heat pump/thermal energy storage system. Such a system is capable of storing heat indefinitely at ambient temperature, and can be used for space and domestic hot water heating, and for air conditioning with forced air (dry) heat rejection. It combines all features required of a residential or commercial space conditioning system except for solar collection. A detailed thermal analysis shows that the coefficient of performance for heating is greater than 1.5, and for cooling, greater than 0.5. This has been confirmed by direct experimental measurement on an engineering development test unit (EDTU). The experimental rate of CH/sub 3/OH absorption is a strong function of the absorber-evaporator temperature difference. The minimum practical hourly rate, 0.10 moles CH/sub 3/OH per mole CaCl/sub 2/, was observed with the salt-bed heat transfer fluid at 40/sup 0/C and the CH/sub 3/OH evaporator at -15/sup 0/C. a detailed performance and economic analysis was carried out for a system operated in Washington, DC. With 25 square meters of evacuated tube solar collectors, the CaCl/sub 2/-CH/sub 3/OH chemical heat pump should be capable of meeting over 90% of the cooling load, 80% of the heating load, and 70% of the domestic hot water load with nonpurchased energy in a typical well-insulated single family residence, thus saving about $600 per year. In small-scale production, the installed cost of the system, including solar collectors and backup, is estimated to be about $10,000 greater than a conventional heating and cooling system, and a much lower cost should be possible in the longer term.

Offenhartz, P O'D; Rye, T V; Malsberger, R E; Schwartz, D

1981-03-01T23:59:59.000Z

56

The integration of water loop heat pump and building structural thermal storage systems  

SciTech Connect (OSTI)

Many commercial buildings need heat in one part and, at the same time, cooling in another part. Even more common is the need for heating during one part of the day and cooling during another in the same spaces. If that energy could be shifted or stored for later use, significant energy might be saved. If a building's heating and cooling subsystems could be integrated with the building's structural mass and used to collect, store, and deliver energy, the energy might be save cost-effectively. To explore this opportunity, researchers at the Pacific Northwest Laboratory (PNL) examined the thermal interactions between the heating, ventilating, and air-conditioning (HVAC) system and the structure of a commercial building. Computer models were developed to simulate the interactions in an existing building located in Seattle, Washington, to determine how these building subsystems could be integrated to improve energy efficiency. The HVAC subsystems in the existing building were modeled. These subsystems consist of decentralized water-source heat pumps (WSHP) in a closed water loop, connected to cooling towers for heat rejection during cooling mode and boilers to augment heating. An initial base case'' computer model of the Seattle building, as-built, was developed. Metered data available for the building were used to calibrate this model to ensure that the analysis would provide information that closely reflected the operation of a real building. The HVAC system and building structure were integrated in the model using the concrete floor slabs as thermal storage media. The slabs may be actively charged during off-peak periods with the chilled water in the loop and then either actively or passively discharged into the conditioned space during peak periods. 21 refs., 37 figs., 17 tabs.

Marseille, T.J.; Schliesing, J.S.

1991-10-01T23:59:59.000Z

57

NV Energy Electricity Storage Valuation  

SciTech Connect (OSTI)

This study examines how grid-level electricity storage may benet the operations of NV Energy in 2020, and assesses whether those benets justify the cost of the storage system. In order to determine how grid-level storage might impact NV Energy, an hourly production cost model of the Nevada Balancing Authority (\\BA") as projected for 2020 was built and used for the study. Storage facilities were found to add value primarily by providing reserve. Value provided by the provision of time-of-day shifting was found to be limited. If regulating reserve from storage is valued the same as that from slower ramp rate resources, then it appears that a reciprocating engine generator could provide additional capacity at a lower cost than a pumped storage hydro plant or large storage capacity battery system. In addition, a 25-MW battery storage facility would need to cost $650/kW or less in order to produce a positive Net Present Value (NPV). However, if regulating reserve provided by storage is considered to be more useful to the grid than that from slower ramp rate resources, then a grid-level storage facility may have a positive NPV even at today's storage system capital costs. The value of having storage provide services beyond reserve and time-of-day shifting was not assessed in this study, and was therefore not included in storage cost-benefit calculations.

Ellison, James F.; Bhatnagar, Dhruv; Samaan, Nader A.; Jin, Chunlian

2013-06-30T23:59:59.000Z

58

BC Hydro Brings Energy Savings to Low-Income Families in Canada...  

Energy Savers [EERE]

needs described in their application. Other BC Hydro incentives not based on income include a rebate program for insulation, draft-proof measures, heat pumps, and water heaters...

59

Lower Brule Sioux Tribe Wind-Pump Storage Feasibility Study Project  

SciTech Connect (OSTI)

The Lower Brule Sioux Tribe is a federally recognized Indian tribe organized pursuant to the 1934 Wheeler-Howard Act (“Indian Reorganization Act”). The Lower Brule Sioux Indian Reservation lies along the west bank of Lake Francis Case and Lake Sharpe, which were created by the Fort Randall and Big Bend dams of the Missouri River pursuant to the Pick Sloan Act. The grid accessible at the Big Bend Dam facility operated by the U.S. Army Corps of Engineers is less than one mile of the wind farm contemplated by the Tribe in this response. The low-head hydroelectric turbines further being studied would be placed below the dam and would be turned by the water released from the dam itself. The riverbed at this place is within the exterior boundaries of the reservation. The low-head turbines in the tailrace would be evaluated to determine if enough renewable energy could be developed to pump water to a reservoir 500 feet above the river.

Shawn A. LaRoche; Tracey LeBeau; Innovation Investments, LLC

2007-04-20T23:59:59.000Z

60

Initial findings: The integration of water loop heat pump and building structural thermal storage systems  

SciTech Connect (OSTI)

This report is one in a series of reports describing research activities in support of the US Department of Energy (DOE) Commercial Building System Integration Research Program. The goal of the program is to develop the scientific and technical basis for improving integrated decision-making during design and construction. Improved decision-making could significantly reduce buildings' energy use by the year 2010. The objectives of the Commercial Building System Integration Research Program are: to identify and quantify the most significant energy-related interactions among building subsystems; to develop the scientific and technical basis for improving energy related interactions in building subsystems; and to provide guidance to designers, owners, and builders for improving the integration of building subsystems for energy efficiency. The lead laboratory for this program is the Pacific Northwest Laboratory. A wide variety of expertise and resources from industry, academia, other government entities, and other DOE laboratories are used in planning, reviewing and conducting research activities. Cooperative and complementary research, development, and technology transfer activities with other interested organizations are actively pursued. In this report, the interactions of a water loop heat pump system and building structural mass and their effect on whole-building energy performance is analyzed. 10 refs., 54 figs., 1 tab.

Marseille, T.J.; Johnson, B.K.; Wallin, R.P.; Chiu, S.A.; Crawley, D.B.

1989-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydro pumped storage" 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

Hydro Capital Asset Manager  

Broader source: Energy.gov [DOE]

This position is located in Federal Hydro Projects, Generation Asset Management, Power Services. Additional vacancies may be filled through this vacancy announcement or if they become available.

62

NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy  

E-Print Network [OSTI]

/ Storage Solar PV Combined Cycle Gas Turbine Pumped Storage Hydro Hydro Study Area Dispatch - Week of April

63

Six years of monitoring the effectiveness of a barrier net at the Ludington Pumped Storage Plant on Lake Michigan  

SciTech Connect (OSTI)

Annually, since 1989, Consumers Power Company and Detroit Edison Company have installed and maintained a seasonal barrier net in Lake Michigan at their jointly owned Ludington Pumped Storage Plant. Each year, Barnes-Williams Environmental Consultants, Inc. has evaluated the effectiveness of the barrier net as a deterrent to fish passage by sampling the fish populations inside and outside of the installed net barrier using variable mesh gill nets. Barrier net effectiveness indices, for fish species and sizes susceptible to capture by the sampling gear, have been developed based upon the difference in relative abundance between comparable outside and inside gill net catches. Knowledge gained each year on barrier net design, installation, and maintenance has been used to modify subsequent barrier net designs and operation procedures to maximize barrier net effectiveness. Initially, barrier net effectiveness, described as the percentage of fish prohibited from entering the barrier net enclosure, was estimated at 34.0% and 37.6% in 1989 and 1990 respectively. The barrier net was substantially redesigned and effectiveness increased to 84.2%, 77.5%, 77.6%, and 89.4% in 1991, 1992, 1993, and 1994 respectively. The seasonal barrier net at the Ludington Plant has been shown to be effective as a deterrent to fish passage.

Guilfoos, E.R.; Williams, R.W.; Rouke, T.E. [Barnes-Williams Environmental Consultants, Inc., Binghamton, NY (United States)] [and others

1995-12-31T23:59:59.000Z

64

Scenario Development and Analysis of Hydrogen as a Large-Scale Energy Storage Medium (Presentation)  

SciTech Connect (OSTI)

The conclusions from this report are: (1) hydrogen has several important advantages over competing technologies, including - very high storage energy density (170 kWh/m{sup 3} vs. 2.4 for CAES and 0.7 for pumped hydro) which allows for potential economic viability of above-ground storage and relatively low environmental impact in comparison with other technologies; and (2) the major disadvantage of hydrogen energy storage is cost but research and deployment of electrolyzers and fuel cells may reduce cost significantly.

Steward, D. M.

2009-06-10T23:59:59.000Z

65

Compressed air energy storage technology program. Annual report for 1979  

SciTech Connect (OSTI)

The objectives of the Compressed Air Energy Storage (CAES) program are to establish stability criteria for large underground reservoirs in salt domes, hard rock, and porous rock used for air storage in utility applications, and to develop second-generation CAES technologies that have minimal or no dependence on petroleum fuels. During the year reported reports have been issued on field studies on CAES on aquifers and in salt, stability, and design criteria for CAES and for pumped hydro-storage caverns, laboratory studies of CAES in porous rock reservoris have continued. Research has continued on combined CAES/Thermal Energy Storage, CAES/Solar systems, coal-fired fluidized bed combustors for CAES, and two-reservoir advanced CAES concepts. (LCL)

Loscutoff, W.V.

1980-06-01T23:59:59.000Z

66

Electric utility applications of hydrogen energy storage systems  

SciTech Connect (OSTI)

This report examines the capital cost associated with various energy storage systems that have been installed for electric utility application. The storage systems considered in this study are Battery Energy Storage (BES), Superconducting Magnetic Energy Storage (SMES) and Flywheel Energy Storage (FES). The report also projects the cost reductions that may be anticipated as these technologies come down the learning curve. This data will serve as a base-line for comparing the cost-effectiveness of hydrogen energy storage (HES) systems in the electric utility sector. Since pumped hydro or compressed air energy storage (CAES) is not particularly suitable for distributed storage, they are not considered in this report. There are no comparable HES systems in existence in the electric utility sector. However, there are numerous studies that have assessed the current and projected cost of hydrogen energy storage system. This report uses such data to compare the cost of HES systems with that of other storage systems in order to draw some conclusions as to the applications and the cost-effectiveness of hydrogen as a electricity storage alternative.

Swaminathan, S.; Sen, R.K.

1997-10-15T23:59:59.000Z

67

Paper Number Development of a Hydro-Mechanical Hydraulic Hybrid Drive  

E-Print Network [OSTI]

for the Center for Compact and Efficient Fluid Power at the University of Minnesota. The hydro-mechanical hybrid is leveraging the intrinsically high power density of the hydraulic energy storage system through optimal enginePaper Number Development of a Hydro-Mechanical Hydraulic Hybrid Drive Train with Independent Wheel

Li, Perry Y.

68

HydroPulse Drilling  

SciTech Connect (OSTI)

Tempress HydroPulse{trademark} tool increases overbalanced drilling rates by generating intense suction pulses at the drill bit. This report describes the operation of the tool; results of pressure drilling tests, wear tests and downhole drilling tests; and the business case for field applications. The HydroPulse{trademark} tool is designed to operate on weighted drilling mud at conventional flow rates and pressures. Pressure drilling tests confirm that the HydroPulse{trademark} tool provides 33% to 200% increased rate of penetration. Field tests demonstrated conventional rotary and mud motor drilling operations. The tool has been operated continuous for 50 hours on weighted mud in a wear test stand. This level of reliability is the threshold for commercial application. A seismic-while-drilling version of the tool was also developed and tested. This tool was used to demonstrate reverse vertical seismic profiling while drilling an inclined test well with a PDC bit. The primary applications for the HydroPulse{trademark} tool are deep onshore and offshore drilling where rate of penetration drives costs. The application of the seismic tool is vertical seismic profiling-while-drilling and look-ahead seismic imaging while drilling.

J.J. Kolle

2004-04-01T23:59:59.000Z

69

Hydro | 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:GreerHiCalifornia: Energy ResourcesPark,isHydro or hydroelectric

70

Wind/Hydro Study  

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 SecurityTensile Strain Switched FerromagnetismWaste and MaterialsWenjun DengWISPWind Industry2 BONNEVILLEWind/Hydro

71

Ammoniated salt heat pump  

SciTech Connect (OSTI)

A thermochemical heat pump/energy storage system using liquid ammoniate salts is described. The system, which can be used for space heating or cooling, provides energy storage for both functions. The bulk of the energy is stored as chemical energy and thus can be stored indefinitely. The system is well suited to use with a solar energy source or industrial waste heat.

Haas, W.R.; Jaeger, F.J.; Giordano, T.J.

1981-01-01T23:59:59.000Z

72

Volume reduction/solidification of liquid radioactive waste using bitumen at Ontario Hydro`s Bruce Nuclear Generating Station `A`  

SciTech Connect (OSTI)

Ontario Hydro at the Bruce Nuclear Generating Station `A` has undertaken a program to render the station`s liquid radioactive waste suitable for discharge to Lake Huron by removing sufficient radiological and chemical contaminants to satisfy regulatory requirements for emissions. The system will remove radionuclide and chemical contaminants from five different plant waste streams. The contaminants will be immobilized and stored at on-site radioactive waste storage facilities and the purified streams will be discharged. The discharge targets established by Ontario Hydro are set well below the limits established by the Ontario Ministry of Environment (MOE) and are based on the Best Available Technology Economically Achievable Approach (B.A.T.E.A.). ADTECHS Corporation has been selected by Ontario Hydro to provide volume reduction/solidification technology for one of the five waste streams. The system will dry and immobilize the contaminants from a liquid waste stream in emulsified asphalt using thin film evaporation technology.

Day, J.E.; Baker, R.L.

1995-05-01T23:59:59.000Z

73

Microsoft Word - Energy Storage 092209 BAR.docx  

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

offer the broadest potential. Superconducting Magnetic Energy Storage (SMES), Compressed Air Energy Storage (CAES), and pumped hydroelectric storage all have value as large...

74

Hydrologic Modeling with Arc Hydro Tools 1 Copyright 2007 ESRI. All rights reserved. Arc Hydro  

E-Print Network [OSTI]

Hydrologic Modeling with Arc Hydro Tools 1 Copyright © 2007 ESRI. All rights reserved. Arc Hydro Arc Hydro: GIS in Water Resources Seminar/Workshop Gainesville, Florida ­ November 15, 2007 Christine Dartiguenave, ESRI inc. cdartiguenave@esri.com #12;Hydrologic Modeling with Arc Hydro Tools 2 2Arc Hydro

Kane, Andrew S.

75

A COMPARISON OF THE AQUATIC IMPACTS OF LARGE HYDRO AND SMALL HYDRO PROJECTS  

E-Print Network [OSTI]

A COMPARISON OF THE AQUATIC IMPACTS OF LARGE HYDRO AND SMALL HYDRO PROJECTS by Lara A. Taylor, P Project: A Comparison of the Aquatic Impacts of Large Hydro and Small Hydro Projects Project No.: 501 of small hydro development in British Columbia has raised concerns surrounding the effects

76

Ontario Hydro Motor Efficiency Study  

E-Print Network [OSTI]

Electric motors consume more than one-half of the electrical energy produced by Ontario Hydro. In the residential sector, the major motor load is for refrigerators and freezers while packaged equipment dominate the motor load in the commercial...

Dautovich, D. R.

1980-01-01T23:59:59.000Z

77

Midwest Hydro Users Group Meeting  

Broader source: Energy.gov [DOE]

The Midwest Hydro Users Group will be holding their annual Fall meeting on November 12th and 13th in Wausau, Wisconsin.  An Owners-only meeting on the afternoon of the 12th followed by a full...

78

Extreme hydro-meteorological events and their probabilities  

E-Print Network [OSTI]

Extreme hydro-meteorological events and their probabilities Jules Beersma #12;Promotor: Prof. dr. A Onderzoekschool (BBOS) #12;Extreme hydro-meteorological events and their probabilities Extreme hydro

Beersma, Jules

79

Hydro-Balanced Stuffing Box field test  

SciTech Connect (OSTI)

The Hydro-Balanced Stuffing Box is a seal assembly for polished rod pumping installations commonly used in oil and gas pumping well installations to contain produced well fluids. The improved stuffing box was developed and patented by Harold H. Palmour of The Palmour Group of Livingston, TX. The stuffing box is designed to reduce the incidence of seal leakage and to utilize an environmentally safe fluid, so that if there is any leakage, environmental damage is reduced or eliminated. The unit was tested on two wells at the Rocky Mountain Oilfield Testing Center. During the test period, the performance of the stuffing box was measured by monitoring the pressure on the tubing and the inner chamber with a Barton Two-pen recorder. The amount of safe fluid consumed, fluid leakage at the top of the stuffing box, pressure supplied from the nitrogen bottle, ambient temperature, and polish rod temperature was recorded. The stuffing box is capable of providing a better seal between well fluids an d the environment than conventional stuffing boxes. It allows the polished rod to operate cooler and with lubrication, extending the life of the packing elements, and reducing the amount of attention required to prevent leakage.

Giangiacomo, L.A.

1999-05-28T23:59:59.000Z

80

California's electricity system of the future scenario analysis in support of public-interest transmission system R&D planning  

E-Print Network [OSTI]

TVA. Battery and compressed air energy storage systems haveenergy storage devices/methods include batteries, pumped hydro, and compressed air.

Eto, Joseph; Stovall, John P.

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydro pumped storage" 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

Hydro-Québec Net Metering (Quebec, Canada)  

Broader source: Energy.gov [DOE]

In line with Hydro-Québec's commitment to the environment and sustainable development, Hydro-Québec is supporting self-generation with a new rate offering: the net metering option. This option...

82

North West Hydro Resource Model Research to identify potential capacity and assist NW hydro power development  

E-Print Network [OSTI]

North West Hydro Resource Model Research to identify potential capacity and assist NW hydro power University wide research, aims to develop a system to promote the exploitation of hydro power in North with regard to hydro schemes Reviewing and re-formulating ill defined requirements for environmental

Meju, Max

83

Prparation de votre examen stabilit hydro  

E-Print Network [OSTI]

Préparation de votre examen stabilité hydro: - Relisez vos notes de cours - Refaites les exercices

Hoepffner, Jérôme

84

Runner upgrading: Learning from Ontario Hydro`s experience  

SciTech Connect (OSTI)

Planning, design, and implementation of turbine runner replacement at Ontario Hydro is described in the article. The use of fully homologous modeling for upgrade projects, including both francis and propeller runner types, is outlined. Confirmation of physical model efficiency is obtained through numerical modeling. Inlet connections, setting cavitation-erosion guarantees, and other guarantees included in tender documents are also described in some detail.

Kee, D.C.; Markovich, M.S.; Munro, R.I. [Ontario Hydro (Canada)

1997-02-01T23:59:59.000Z

85

4, 18791891, 2007 hydro-information  

E-Print Network [OSTI]

HESSD 4, 1879­1891, 2007 WS for hydro-information systems J. Horak et al. Title Page Abstract for distributed and interoperable hydro-information systems J. Horak, A. Orlik, and J. Stromsky Institute (antonin.orlik.hgf@vsb.cz) 1879 #12;HESSD 4, 1879­1891, 2007 WS for hydro-information systems J. Horak et

Paris-Sud XI, Université de

86

Quidi Vidi Lake Hydro Power Demonstration Project  

E-Print Network [OSTI]

walking trail Comprised of a micro hydro generator a wind turbine and a solar array, metered and interpreted This presentation describes the preliminary work on the micro hydro component of the installation interests in using existing infrastructure for low impact micro hydro generation. Insurmountable Roadblocks

Bruneau, Steve

87

Complex Compound Chemical Heat Pumps  

E-Print Network [OSTI]

-Vapor Energy Storage Systems," Final Report, ORNL, under contract No. 86X-57432'J, in print. 4. Rockenfeller, U., et. al., "Development of Dual Temperature Ammines for Heat Pump latent Storage Application," Final Report, ORNL, under Contract No. 86X-4'i...

Rockenfeller, U.; Langeliers, J.; Horn, G.

88

Manitoba Hydro | 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:46 - 429Lacey,(MonasterLowellis a town in Carroll County,Manitoba Hydro Jump to:

89

Volume reduction/solidification of liquid radioactive waste using bitumen at Ontario hydro`s Bruce nuclear generating station {open_quotes}A{close_quotes}  

SciTech Connect (OSTI)

Ontario Hydro at the Bruce Nuclear Generating Station {open_quotes}A{close_quotes} has undertaken a program to render the station`s liquid radioactive waste suitable for discharge to Lake Huron by removing sufficient radiological and chemical contaminants from five different plant waste streams. The contaminants will be immobilized and stored at on-site radioactive waste storage facilities and the purified streams will be discharged. The discharge targets established by Ontario Hydro are set well below the limits established by the Ontario Ministry of Environment (MOE) and are based on the Best Available Technology Economically Achievable Approach (B.A.T.E.A.). ADTECHS Corporation has been selected by Ontario Hydro to provide volume reduction/solidification technology for one of the five waste streams. The system will dry and immobilize the contaminants from a liquid waste stream in emulsified asphalt using thin film evaporation technology.

Day, J.E.; Baker, R.L. [ADTECHS Corporation, Herndon, VA (United States)

1994-12-31T23:59:59.000Z

90

Linkage of the ArcHydro Data Model with SWAT  

E-Print Network [OSTI]

Linkage of the ArcHydro Data Model with SWAT Francisco Olivera, Ph.D., P.E. Milver Valenzuela Texas on a hub basis. Independent of the already connected models HUB #12;Arc Hydro Arc Hydro can be used as the hub for connecting hydrologic models. #12;Arc Hydro #12;What it is and what it is not ... Arc Hydro

91

National Assessment of Energy Storage for Grid Balancing and Arbitrage: Phase 1, WECC  

SciTech Connect (OSTI)

To examine the role that energy storage could play in mitigating the impacts of the stochastic variability of wind generation on regional grid operation, the Pacific Northwest National Laboratory (PNNL) examined a hypothetical 2020 grid scenario in which additional wind generation capacity is built to meet renewable portfolio standard targets in the Western Interconnection. PNNL developed a stochastic model for estimating the balancing requirements using historical wind statistics and forecasting error, a detailed engineering model to analyze the dispatch of energy storage and fast-ramping generation devices for estimating size requirements of energy storage and generation systems for meeting new balancing requirements, and financial models for estimating the life-cycle cost of storage and generation systems in addressing the future balancing requirements for sub-regions in the Western Interconnection. Evaluated technologies include combustion turbines, sodium sulfur (Na-S) batteries, lithium ion batteries, pumped-hydro energy storage, compressed air energy storage, flywheels, redox flow batteries, and demand response. Distinct power and energy capacity requirements were estimated for each technology option, and battery size was optimized to minimize costs. Modeling results indicate that in a future power grid with high-penetration of renewables, the most cost competitive technologies for meeting balancing requirements include Na-S batteries and flywheels.

Kintner-Meyer, Michael CW; Balducci, Patrick J.; Colella, Whitney G.; Elizondo, Marcelo A.; Jin, Chunlian; Nguyen, Tony B.; Viswanathan, Vilayanur V.; Zhang, Yu

2012-06-01T23:59:59.000Z

92

Thermal storage studies for solar heating and cooling: applications using chemical heat pumps. Final report, September 15, 1979-April 15, 1980  

SciTech Connect (OSTI)

TRNSYS-compatible subroutines for the simulation of chemical heat pumps have been written, and simulations (including heating, cooling, and domestic hot water) have been performed for Washington, DC and Ft. Worth, Texas. Direct weekly comparisons of the H/sub 2/SO/sub 4//H/sub 2/O and CaCl/sub 2//CH/sub 3/OH cycles have been carried out. Projected performance of the NH/sub 4/NO/sub 3//NH/sub 3/ cycle has also been investigated, and found to be essentially identical to H/sub 2/SO/sub 4//H/sub 2/O. In all cases simulated, the solar collector is a fixed evacuated tube system, which is necessary because chemical heat pumps operate at higher solar collector temperatures (> 100/sup 0/C) than conventional solar systems. With standard residential loads, the chemical heat pumps performed surprisingly well. In the Ft. Worth climate, less than 45 m/sup 2/ of collectors were required to meet over 90% of the heating and cooling loads. In Washington, DC, the area required to meet the cooling load was smaller (as little as 20 m/sup 2/, depending on window shading), but was sufficient to meet only 50 to 60% of the heating load. However, gas-fired backup via the heat pump was quite effective in reducing fossil fuel consumption: the thermal COPs in the heating mode were in the range 1.6 to 1.7. Since chemical heat pumps are designed to reject heat at relatively high temperatures, they were also effective in providing domestic hot water, supplying ca. 70% of the DHW in summer, ca. 50% in winter, and nearly 100% in spring and fall.

Offenhartz, P O.D.

1981-04-01T23:59:59.000Z

93

Water Requirements for Future Energy production in California  

E-Print Network [OSTI]

Coal Combined Cycle Gas Turbine Geothermal '"''"'o L.L.OIConventional Cycle Combined Gas Turbine Hydro Hydro Hydrogeothermal pumped storage, gas turbines in this facilities

Sathaye, J.A.

2011-01-01T23:59:59.000Z

94

On the Use of Energy Storage Technologies for Regulation Services in Electric Power Systems with Significant Penetration of Wind Energy  

SciTech Connect (OSTI)

Energy produced by intermittent renewable resources is sharply increasing in the United States. At high penetration levels, volatility of wind power production could cause additional problems for the power system balancing functions such as regulation. This paper reports some partial results of a project work, recently conducted by the Pacific Northwest National Laboratory (PNNL) for Bonneville Power Administration (BPA). The project proposes to mitigate additional intermittency with the help of Wide Area Energy Management System (WAEMS) that would provide a two-way simultaneous regulation service for the BPA and California ISO systems by using a large energy storage facility. The paper evaluates several utility-scale energy storage technology options for their usage as regulation resources. The regulation service requires a participating resource to quickly vary its power output following the rapidly and frequently changing regulation signal. Several energy storage options have been analyzed based on thirteen selection criteria. The evaluation process resulted in the selection of flywheels, pumped hydro electric power (or conventional hydro electric power) plant and sodium sulfur or nickel cadmium batteries as candidate technologies for the WAEMS project. A cost benefit analysis should be conducted to narrow the choice to one technology.

Yang, Bo; Makarov, Yuri V.; DeSteese, John G.; Vishwanathan, Vilanyur V.; Nyeng, Preben; McManus, Bart; Pease, John

2008-05-27T23:59:59.000Z

95

Vortex Hydro Energy Develops Transformational Technology to Harness...  

Energy Savers [EERE]

Vortex Hydro Energy Develops Transformational Technology to Harness Energy from Water Currents Vortex Hydro Energy Develops Transformational Technology to Harness Energy from Water...

96

NOAA Fisheries Protocols For Hydro-dynamic Dredge Surveys  

E-Print Network [OSTI]

NOAA Fisheries Protocols For Hydro-dynamic Dredge Surveys: Surf Clams and Ocean Quahogs December 19..................................................................................................................................... 1 NOAA Fisheries Hydro-dynamic Clam Dredge Survey Protocols

97

PHNOMNES DITS HYDRO-LECTRIQUES ET HYDRO-MAGNTIQUES; THO-RMES FONDAMENTAUX ET LEUR CONSTATATION EXPRIMENTALE;  

E-Print Network [OSTI]

PH�NOM�NES DITS HYDRO-�LECTRIQUES ET HYDRO-MAGN�TIQUES; TH�O- R�MES FONDAMENTAUX ET LEUR nouveaux phénomènes. Je les désignerai ainsi comme une hydro-électicité, un hydro-magnétisme, etc. Mais'idée, d'aimants au lieu d'hydro-aimants, de masses électriques au lieu de masses hydro-électriques, et

Paris-Sud XI, Université de

98

The emerging roles of energy storage in a competitive power market: Summary of a DOE Workshop  

SciTech Connect (OSTI)

This report contains a summary of the workshop, {open_quotes}The Emerging Roles of Energy Storage in a Competitive Power Market,{close_quotes} which was sponsored by the U.S. Department of Energy and Sandia National Laboratories and was held in Pleasanton, California on December 6-7, 1994. More than 70 people attended, representing government agencies, national laboratories, equipment vendors, electric utilities and other energy providers, venture capital interests, and consultants. Many types of energy storage were discussed, including electrical (batteries and superconducting magnets), mechanical (flywheels and pumped hydro), hydrogen, compressed air, and thermal energy storage. The objectives of the workshop were to communicate within the energy storage community regarding the costs, benefits, and technical status of various technology options; to explore and elucidate the evolving roles of energy storage in a more dynamic and competitive power and energy marketplace; and to discuss the optimum federal role in this area. The goals of the workshop were fully realized through knowledgeable and insightful presentations and vigorous discussion, which are summarized.

Gordon, S.P.; Falcone, P.K. [eds.

1995-06-01T23:59:59.000Z

99

California's Energy Future - The View to 2050  

E-Print Network [OSTI]

pumped hydro, compressed air energy storage (CAES), 25as-usual CAES Compressed air energy storage CARB Californiacompressed air energy Commercial time-of-use storage (CAES),

2011-01-01T23:59:59.000Z

100

California’s Energy Future: The View to 2050 - Summary Report  

E-Print Network [OSTI]

pumped hydro, compressed air energy storage (CAES), 25as-usual CAES Compressed air energy storage CARB Californiacompressed air energy Commercial time-of-use storage (CAES),

Yang, Christopher

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydro pumped storage" 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

Changes in the Economic Value of Variable Generation at High Penetration Levels: A Pilot Case Study of California  

E-Print Network [OSTI]

Reliability Corporation National Renewable Energy Laboratory Operations and maintence Pumped hydro storage Power purchase agreement Production tax credit Photovoltaic

Mills, Andrew

2013-01-01T23:59:59.000Z

102

Electrokinetic pump  

DOE Patents [OSTI]

A method for altering the surface properties of a particle bed. In application, the method pertains particularly to an electrokinetic pump configuration where nanoparticles are bonded to the surface of the stationary phase to alter the surface properties of the stationary phase including the surface area and/or the zeta potential and thus improve the efficiency and operating range of these pumps. By functionalizing the nanoparticles to change the zeta potential the electrokinetic pump is rendered capable of operating with working fluids having pH values that can range from 2-10 generally and acidic working fluids in particular. For applications in which the pump is intended to handle highly acidic solutions latex nanoparticles that are quaternary amine functionalized can be used.

Patel, Kamlesh D. (Dublin, CA)

2007-11-20T23:59:59.000Z

103

Operation of a steam hydro-gasifier in a fluidized bed reactor  

E-Print Network [OSTI]

Using Self-Sustained Hydro- Gasification." [0011] In aprocess, using a steam hydro-gasification reactor (SHR) thepyrolysis and hydro-gasification in a single step. This

Park, Chan Seung; Norbeck, Joseph N.

2008-01-01T23:59:59.000Z

104

Experimental Research of Air Source Heat Pump Frosting and Defrosting in a Double Stage-Coupling Heat Pump  

E-Print Network [OSTI]

, the effect of the heat storage tank to the air source heat pump defrosting is test. Owing to the existence of the heat storage tank, thermal inertia of the loop is relatively high. The frosting and defrosting course of the air source heat pump have little...

Wang, Z.; Gu, J.; Lu, Z.

2006-01-01T23:59:59.000Z

105

DOE Global Energy Storage Database  

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

The DOE International Energy Storage Database has more than 400 documented energy storage projects from 34 countries around the world. The database provides free, up-to-date information on grid-connected energy storage projects and relevant state and federal policies. More than 50 energy storage technologies are represented worldwide, including multiple battery technologies, compressed air energy storage, flywheels, gravel energy storage, hydrogen energy storage, pumped hydroelectric, superconducting magnetic energy storage, and thermal energy storage. The policy section of the database shows 18 federal and state policies addressing grid-connected energy storage, from rules and regulations to tariffs and other financial incentives. It is funded through DOE’s Sandia National Laboratories, and has been operating since January 2012.

106

Coupled hydro-mechanical processes in crytalline rock and in induratedand plastic clays: A comparative discussion  

E-Print Network [OSTI]

at Grimsel. In Coupled Thermo-Hydro- Mechanical-ChemicalCOUPLED HYDRO-MECHANICAL PROCESSES IN CRYTALLINE ROCK AND IN

Tsang, Chin-Fu; Blumling, Peter; Bernier, Frederic

2008-01-01T23:59:59.000Z

107

| JANUARY/FEBRUARY 2014 | Hydro INTERNATIONAL22 symbols and features used on a  

E-Print Network [OSTI]

| JANUARY/FEBRUARY 2014 | Hydro INTERNATIONAL22 symbols and features used on a nautical chart #12;Hydro INT

New Hampshire, University of

108

Transcending the Hydro-Illogical Building a Texas Hydrologic  

E-Print Network [OSTI]

Transcending the Hydro-Illogical Cycle Building a Texas Hydrologic Information System TX-HIS #12;Q to couple streamflow models to GCMs · We need to break the hydro-illogical cycle and plan for the delivery

Yang, Zong-Liang

109

HydroGen | 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 Inspector GeneralDepartmentAUDIT REPORTOpen EnergyBoard"Starting a new pageHuadeHydroChinaHydroGen Jump

110

An Empirical Model of Imperfect Dynamic Competition and Application to Hydroelectricity Storage  

E-Print Network [OSTI]

The Nordic power market presents a unique opportunity for testing the nature and degree of market power in storage behavior due to preciseness of data on market fundamentals determining hydro resource use. We develop an ...

Liski, Matti

2008-01-01T23:59:59.000Z

111

Fraser River Hydro and Fisheries Research Project fonds  

E-Print Network [OSTI]

Fraser River Hydro and Fisheries Research Project fonds Revised by Erwin Wodarczak (1998 Fraser River Hydro and Fisheries Research Project fonds. ­ 19561961. 13 cm of textual records. Administrative History The Fraser River Hydro and Fisheries Research Project was established in 1956, financed

Handy, Todd C.

112

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

113

Stochastic Co-optimization for Hydro-Electric Power Generation  

E-Print Network [OSTI]

1 Stochastic Co-optimization for Hydro-Electric Power Generation Shi-Jie Deng, Senior Member, IEEE the optimal scheduling problem faced by a hydro-electric power producer that simultaneously participates in multiple markets. Specifically, the hydro-generator participates in both the electricity spot market

114

Forestry Commission Wales Guidance on rental levels for Hydro Power  

E-Print Network [OSTI]

initiated a process to facilitate the development of small- scale hydro-electricity schemes on land ownedForestry Commission Wales Guidance on rental levels for Hydro Power Guidance on rental levels for hydro power projects Tel: 02920 475961 Email: hydrowales@forestry.gsi.gov.uk Version 1.0 Mike Pitcher 17

115

NOAA Technical Memorandum NWS HYDRO 45 RELATIONSHIP BETWEEN  

E-Print Network [OSTI]

NOAA Technical Memorandum NWS HYDRO 45 RELATIONSHIP BETWEEN STORM AND ANTECEDENT PRECIPITATION OVER TECHNICAL MEMORANDUMS National Weather Service. Office of Hydrology Series The Office of Hydrology (HYDRO and development. NOAA Technical Memorandums in the NWS HYDRO series facilitate prompt distribution of scientific

116

Atomic scale mixing for inertial confinement fusion associated hydro instabilities  

E-Print Network [OSTI]

Atomic scale mixing for inertial confinement fusion associated hydro instabilities J. Melvina, , P Alamos, NM 87545, USA Abstract Hydro instabilities have been identified as a potential cause- able. We find numerical convergence for this important quantity, in a purely hydro study, with only

New York at Stoney Brook, State University of

117

NOAA Technical Memorandum NWS HYDRO 46 A CLIMATIC ANALYSIS  

E-Print Network [OSTI]

NOAA Technical Memorandum NWS HYDRO 46 A CLIMATIC ANALYSIS OF OROGRAPHIC PRECIPITATION OVER THE BIGHydrology (HYDRO) ofthe National Weather Service (NWS) develops procedures for making river and water supply, and conducts pertinent research and development NOAA Teclmical Memorandums in the NWS HYDRO series facilitate

118

Get Pumped about Pumped Storage | Department of Energy  

Office of Environmental Management (EM)

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) "of EnergyEnergyENERGY TAX POLICIES7.pdfFuel Cell VehicleEnergy (5Temperatures | DepartmentActivity

119

Ontario Hydro`s transportation of radioactive material and emergency response plan  

SciTech Connect (OSTI)

Ontario Hydro has been transporting radioactive material for almost 30 years without any exposure to the public or release to the environment. However, there have been three accidents involving Hydro`s shipments of radioactive material. In addition to the quality packaging and shipping program, Ontario Hydro has an Emergency Response Plan and capability to deal with an accident involving a shipment of radioactive material. The Corporation`s ability to respond, to effectively control and contain the situation, site remediation, and to provide emergency public information in the event of a road accident minimizes the risk to the public and the environment. This emphasizes their commitment to worker safety, public safety and impact to the environment. Response capability is mandated under various legislation and regulations in Canada.

Karmali, N. [Ontario Hydro, Toronto, Ontario (Canada). Nuclear Operations Branch

1993-12-31T23:59:59.000Z

120

Gas hydrate cool storage system  

DOE Patents [OSTI]

The invention presented relates to the development of a process utilizing a gas hydrate as a cool storage medium for alleviating electric load demands during peak usage periods. Several objectives of the invention are mentioned concerning the formation of the gas hydrate as storage material in a thermal energy storage system within a heat pump cycle system. The gas hydrate was formed using a refrigerant in water and an example with R-12 refrigerant is included. (BCS)

Ternes, M.P.; Kedl, R.J.

1984-09-12T23:59:59.000Z

Note: This page contains sample records for the topic "hydro pumped storage" 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

LANL hydro test update(u)  

SciTech Connect (OSTI)

Briefings presenting W78 programmatic activities for FY11 and the status and plan for associated Hydro 3617, is included wherewith in support of the NNSA W78 Program Review Meeting scheduled for January 11 thru 13, 2011, at the Savannah River Plant, SC.

Aragon, Ezekiel D [Los Alamos National Laboratory

2011-01-06T23:59:59.000Z

122

3-D hydro + cascade model at RHIC  

E-Print Network [OSTI]

We present a 3-D hydro + cascade model in which viscosity and a realistic freezeout process for the hadronic phase are taken into account. We compare our results to experimental data and discuss the finite state interaction effects on physical observables.

Chiho Nonaka; Steffen A. Bass

2005-11-07T23:59:59.000Z

123

THERMO-HYDRO-MECHANICAL SIMULATION OF GEOTHERMAL  

E-Print Network [OSTI]

THERMO-HYDRO-MECHANICAL SIMULATION OF GEOTHERMAL RESERVOIR STIMULATIONRESERVOIR STIMULATION Silvia Seminario del Grupo de Hidrologìa Subterrànea - UPC, Barcelona #12;INTRODUCTION Enhanced geothermal systems Geothermal gradient ~ 33 °C/Km Hydraulic stimulation enhances fracture permeability (energy

Politècnica de Catalunya, Universitat

124

Doctoral Defense "Thermal-hydro-mechanical model  

E-Print Network [OSTI]

Doctoral Defense "Thermal-hydro-mechanical model for freezing and thawing soils" Yao Zhang Date & Environmental Engineering Frost susceptible soils are vulnerable to frost action in seasonal freezing as well and strengthening occurs as the soils freeze, whereas settlement and thaw weakening is expected during the melting

Kamat, Vineet R.

125

Hydrogen Storage Systems Anlaysis Working Group Meeting, December...  

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

methodologies for reversible gas applications, including hydrogen fuel storage, heat pumps, compressors, and sorption cryo-coolers. The emphasis is on modeling sorption and...

126

Slide 1  

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

* Aesthetics Central Units Distributed Units Pumped Hydro (Central) 5 Massive Electricity Storage - AEP's Vision 2015 and Beyond 6 The Three Categories of Storage...

127

Investigation of carbon materials for use as a flowable electrode...  

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

range from mechanical systems such as pumped-storage hydro- electricity, compressed air, and fly wheels to superconducting magnetic energy storage, to name a few. However,...

128

Lifecycle Cost Analysis of Hydrogen Versus Other Technologies...  

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

compared with three other storage technologies: batteries, pumped hydro, and compressed air energy storage (CAES). Lifecycle Cost Analysis of Hydrogen Versus Other Technologies...

129

Chemical heat pump  

DOE Patents [OSTI]

A chemical heat pump system is disclosed for use in heating and cooling structures such as residences or commercial buildings. The system is particularly adapted to utilizing solar energy, but also increases the efficiency of other forms of thermal energy when solar energy is not available. When solar energy is not available for relatively short periods of time, the heat storage capacity of the chemical heat pump is utilized to heat the structure as during nighttime hours. The design also permits home heating from solar energy when the sun is shining. The entire system may be conveniently rooftop located. In order to facilitate installation on existing structures, the absorber and vaporizer portions of the system may each be designed as flat, thin wall, thin pan vessels which materially increase the surface area available for heat transfer. In addition, this thin, flat configuration of the absorber and its thin walled (and therefore relatively flexible) construction permits substantial expansion and contraction of the absorber material during vaporization and absorption without generating voids which would interfere with heat transfer. The heat pump part of the system heats or cools a house or other structure through a combination of evaporation and absorption or, conversely, condensation and desorption, in a pair of containers. A set of automatic controls change the system for operation during winter and summer months and for daytime and nighttime operation to satisfactorily heat and cool a house during an entire year. The absorber chamber is subjected to solar heating during regeneration cycles and is covered by one or more layers of glass or other transparent material. Daytime home air used for heating the home is passed at appropriate flow rates between the absorber container and the first transparent cover layer in heat transfer relationship in a manner that greatly reduce eddies and resultant heat loss from the absorbant surface to ambient atmosphere.

Greiner, Leonard (2750-C Segerstrom Ave., Santa Ana, CA 92704)

1980-01-01T23:59:59.000Z

130

Chemical heat pump  

DOE Patents [OSTI]

A chemical heat pump system is disclosed for use in heating and cooling structures such as residences or commercial buildings. The system is particularly adapted to utilizing solar energy, but also increases the efficiency of other forms of thermal energy when solar energy is not available. When solar energy is not available for relatively short periods of time, the heat storage capacity of the chemical heat pump is utilized to heat the structure, as during nighttime hours. The design also permits home heating from solar energy when the sun is shining. The entire system may be conveniently rooftop located. In order to facilitate installation on existing structures, the absorber and vaporizer portions of the system may each be designed as flat, thin wall, thin pan vessels which materially increase the surface area available for heat transfer. In addition, this thin, flat configuration of the absorber and its thin walled (and therefore relatively flexible) construction permits substantial expansion and contraction of the absorber material during vaporization and absorption without generating voids which would interfere with heat transfer.

Greiner, Leonard (2853-A Hickory Pl., Costa Mesa, CA 92626)

1981-01-01T23:59:59.000Z

131

Chemical heat pump  

DOE Patents [OSTI]

A chemical heat pump system is disclosed for use in heating and cooling structures such as residences or commercial buildings. The system is particularly adapted to utilizing solar energy, but also increases the efficiency of other forms of thermal energy when solar energy is not available. When solar energy is not available for relatively short periods of time, the heat storage capacity of the chemical heat pump is utilized to heat the structure, as during nighttime hours. The design also permits home heating from solar energy when the sun is shining. The entire system may be conveniently rooftop located. In order to facilitate intallation on existing structures, the absorber and vaporizer portions of the system may each be designed as flat, thin wall, thin pan vessels which materially increase the surface area available for heat transfer. In addition, this thin, flat configuration of the absorber and its thin walled (and therefore relatively flexible) construction permits substantial expansion and contraction of the absorber material during vaporization and absorption without generating voids which would interfere with heat transfer.

Greiner, Leonard (2853-A Hickory Pl., Costa Mesa, CA 92626)

1984-01-01T23:59:59.000Z

132

Chemical heat pump  

DOE Patents [OSTI]

A chemical heat pump system is disclosed for use in heating and cooling structures such as residences or commercial buildings. The system is particularly adapted to utilizing solar energy, but also increases the efficiency of other forms of thermal energy when solar energy is not available. When solar energy is not available for relatively short periods of time, the heat storage capacity of the chemical heat pump is utilized to heat the structure, as during nighttime hours. The design also permits home heating from solar energy when the sun is shining. The entire system may be conveniently rooftop located. In order to facilitate installation on existing structures, the absorber and vaporizer portions of the system may each be designed as flat, thin wall, thin pan vessels which materially increase the surface area available for heat transfer. In addition, this thin, flat configuration of the absorber and its thin walled (and therefore relatively flexible) construction permits substantial expansion and contraction of the absorber material during vaporization and absorption without generating voids which would interfere with heat transfer.

Greiner, Leonard (2853-A Hickory Pl., Costa Mesa, CA 92626)

1984-01-01T23:59:59.000Z

133

Chemical heat pump  

DOE Patents [OSTI]

A chemical heat pump system is disclosed for use in heating and cooling structures such as residences or commercial buildings. The system is particularly adapted to utilizing solar energy, but also increases the efficiency of other forms of thermal energy when solar energy is not available. When solar energy is not available for relatively short periods of time, the heat storage capacity of the chemical heat pump is utilized to heat the structure, as during nighttime hours. The design also permits home heating from solar energy when the sun is shining. The entire system may be conveniently rooftop located. In order to faciliate installation on existing structures, the absorber and vaporizer portions of the system may each be designed as flat, thin wall, thin pan vessels which materially increase the surface area available for heat transfer. In addition, this thin, flat configuration of the absorber and its thin walled (and therefore relatively flexible) construction permits substantial expansion and contraction of the absorber material during vaporization and absorption without generating voids which would interfere with heat transfer.

Greiner, Leonard (2853-A Hickory Pl., Costa Mesa, CA 92626)

1984-01-01T23:59:59.000Z

134

Resonantly pumped optical pumping injection cavity lasers  

E-Print Network [OSTI]

An optical parametric oscillator is tuned to the resonance wavelength of the etalon in an optical pumping injection cavity (OPIC) laser with a type-II "W" active region, thereby minimizing the threshold pump intensity and ...

Santilli, Michael Robert; McAlpine, T. C.; Greene, K. R.; Olafsen, L. J.; Bewley, W. W.; Felix, C. L.; Vurgaftman, I.; Meyer, J. R.; Lee, H.; Martinelli, R. U.

2004-11-01T23:59:59.000Z

135

Winding for linear pump  

DOE Patents [OSTI]

A winding and method of winding for a submersible linear pump for pumping liquid sodium is disclosed. The pump includes a stator having a central cylindrical duct preferably vertically aligned. The central vertical duct is surrounded by a system of coils in slots. These slots are interleaved with magnetic flux conducting elements, these magnetic flux conducting elements forming a continuous magnetic field conduction path along the stator. The central duct has placed therein a cylindrical magnetic conducting core, this core having a cylindrical diameter less than the diameter of the cylindrical duct. The core once placed to the duct defines a cylindrical interstitial pumping volume of the pump. This cylindrical interstitial pumping volume preferably defines an inlet at the bottom of the pump, and an outlet at the top of the pump. Pump operation occurs by static windings in the outer stator sequentially conveying toroidal fields from the pump inlet at the bottom of the pump to the pump outlet at the top of the pump. The winding apparatus and method of winding disclosed uses multiple slots per pole per phase with parallel winding legs on each phase equal to or less than the number of slots per pole per phase. The slot sequence per pole per phase is chosen to equalize the variations in flux density of the pump sodium as it passes into the pump at the pump inlet with little or no flux and acquires magnetic flux in passage through the pump to the pump outlet.

Kliman, Gerald B. (Schenectady, NY); Brynsvold, Glen V. (San Jose, CA); Jahns, Thomas M. (Schenectady, NY)

1989-01-01T23:59:59.000Z

136

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

137

A Hydro-Thermo-Mechanical Numerical Model For Hdr Geothermal...  

Open Energy Info (EERE)

to the most hydraulically conductive fractures in two orthogonal and vertical fracture sets. The mathematical model representing the hydro-mechanical interactions that are...

138

Microsoft Word - SNOPUD_Youngs_Cr_Hydro_CX_+_Checklist.doc  

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

Interconnection of Snohomish County Public Utility District No.1 (SNOPUD) Young's Creek Hydro Small Generation Budget Information: WO 00231295, Task 01 Categorical Exclusion...

139

Rye Patch geothermal development, hydro-chemistry of thermal...  

Open Energy Info (EERE)

development, hydro-chemistry of thermal water applied to resource definition Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Rye Patch geothermal...

140

Innostock 2012 The 12th International Conference on Energy Storage  

E-Print Network [OSTI]

exchanger (GHE) that may be used with ground source heat pump (GSHP) or underground thermal energy storage Innostock 2012 The 12th International Conference on Energy Storage 1 INNO-U-39 A quasi-two-dimensional standing column well model for ground source heat pump systems Annamalai Ramesh1 , Jeffrey Spitler2 1

Note: This page contains sample records for the topic "hydro pumped storage" 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

Match Pumps to System Requirements  

SciTech Connect (OSTI)

BestPractices Program tip sheet discussing pumping system efficiency matching pumps to system requirements

Not Available

2005-10-01T23:59:59.000Z

142

Thermo-hydro-chemical Predictive analysis for the drift-scale predictive heater test,  

E-Print Network [OSTI]

Characterization Project Thermo-Hydro-Chemical Predictive90-1116 Berkeley, C A 94720 Thermo-Hydro-Chemical PredictiveVersion 1.0 Thermo-Hydro-Chemical Predictive Analysis for

Sonnenthal, Eric L.; Spycher, Nicolas; Apps, John; Simmons, Ardyth

1998-01-01T23:59:59.000Z

143

Operation of a steam hydro-gasifier in a fluidized bed reactor  

E-Print Network [OSTI]

OPERATION OF A S T E A M HYDRO-GASIFIER IN A FLUIDIZED BEDMaterial Using Self-Sustained Hydro- Gasification." [0011]the process, using a steam hydro-gasification reactor (SHR)

Park, Chan Seung; Norbeck, Joseph N.

2008-01-01T23:59:59.000Z

144

Optimierung eines hydro-thermischen Kraftwerks-systems unter Ungewi heit  

E-Print Network [OSTI]

Optimierung eines hydro-thermischen Kraftwerks- systems unter Ungewi heit Dr. rer. nat. N. Growe Arbeit beschreiben wir ein stochastisches Modell fur den ko- stenoptimalen Einsatz eines hydro ein, entwickeln ein Losungsverfahren und validieren dies am Beispiel des hydro

Römisch, Werner

145

Multiple pump housing  

DOE Patents [OSTI]

A fluid delivery system includes a first pump having a first drive assembly, a second pump having a second drive assembly, and a pump housing. At least a portion of each of the first and second pumps are located in the housing.

Donoho, II, Michael R. (Edelstein, IL); Elliott, Christopher M. (Metamora, IL)

2010-03-23T23:59:59.000Z

146

Voith Hydro Wavegen Limited | 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:FAQ < RAPID Jump to:Seadov PtyInformationSEDS data Jump to: navigation, search ToolVoith Hydro Wavegen

147

Ascent Hydro Projects Ltd | 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 NoPublic Utilities Address: 160 East 300AlgoilEnergyElectric Coop CorpInformation ArthurAscendantHydro Projects

148

HydroChina Corporation | 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 Inspector GeneralDepartmentAUDIT REPORTOpen EnergyBoard"Starting a new pageHuadeHydroChina Corporation

149

Property:HydroSystem | 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 revisionEnvReviewNonInvasiveExploration Jump to:FieldProceduresFY JumpThis is a property ofHydroSystem Jump to:

150

Hydro Green Energy | 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 WindHybrids Plus Jump to:EnergyHydro

151

HydroVolts | 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 WindHybrids PlusHydroVolts Jump to:

152

Short communication Optimization of hybrid ground coupled and air source heat pump systems  

E-Print Network [OSTI]

Short communication Optimization of hybrid ­ ground coupled and air source ­ heat pump systems 2008 Accepted 14 January 2010 Available online 28 January 2010 Keywords: Ground coupled heat pump Air to water heat pump Thermal storage device Hybrid HVAC system Energy efficiency Numerical simulation a b

Fernández de Córdoba, Pedro

153

E-Print Network 3.0 - atmosphere-sea hydro-ecological model Sample...  

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

sensitive to climate change because numerous hydro-ecological processes respond to even small changes... (see section on general hydro-ecology and 6). Even more dramatic...

154

NH4-smectite: Characterization, hydration properties and hydro mechanical behaviour  

E-Print Network [OSTI]

NH4-smectite: Characterization, hydration properties and hydro mechanical behaviour M. Gautier a and drive to environmental problems. The purpose of this study was to understand the hydro- physical changes the pressure on small amounts of samples, proved the strong increase of the permeability of NH4-smectite

Paris-Sud XI, Université de

155

Micro Hydro-Diesel Hybrid Power System  

E-Print Network [OSTI]

This paper presents the design and analysis of Neuro-Fuzzy controller based on Adaptive Neuro-Fuzzy Inference System (ANFIS) architecture for Load frequency control of an isolated wind-micro hydro-diesel hybrid power system, to regulate the frequency deviation and power deviations. Due to the sudden load changes and intermittent wind power, large frequency fluctuation problem can occur. This newly developed control strategy combines the advantage of neural networks and fuzzy inference system and has simple structure that is easy to implement. So, in order to keep system performance near its optimum, it is desirable to track the operating conditions and use updated parameters to control the system. Simulations of the proposed ANFIS based Neuro-Fuzzy controller in an isolated wind-micro hydro-diesel hybrid power system with different load disturbances are performed. Also, a conventional proportional Integral (PI) controller and a fuzzy logic (FL) controller were designed separately to control the same hybrid power system for the performance comparison. The performance of the proposed controller is verified from simulations and comparisons. Simulation results show that the performance of the proposed ANFIS based Neuro-Fuzzy Controller damps out the frequency deviation and attains the steady state value with less settling time. The proposed ANFIS based Neuro-Fuzzy controller provides best control performance over a wide range of operating conditions.

Dhanalakshmi R; Palaniswami S

156

Optimal sequencing site of hydro-power stations  

SciTech Connect (OSTI)

At the first stage of a hydro-power survey of a river, it is important to select the optimal hydro-power site. The most important condition to be satisfied is to determine the optimal site where the greatest and most economical amount of hydro-energy can be obtained. This paper proposes a new method in which the optimal arrangement of the hydro-power stations is determined by a computational operation using discrete data at points along the river such as the drainage area, altitude, and distance along the river channel as obtained from topographical maps instead of drawing on engineers` experiences and the intuitions of experts. The results by this method are then compared with data on existing hydro-power stations and the results planned by expert engineers to show that this new computational method is superior.

Hayashi, T.; Yoshino, F.; Waka, R. [Tottori Univ., Koyama (Japan). Dept. of Mechanical Engineering

1995-06-01T23:59:59.000Z

157

Electrolysis for Energy Storage & Grid Balancing in West Denmark  

E-Print Network [OSTI]

Electrolysis for Energy Storage & Grid Balancing in West Denmark A possible first step toward. Economic Assessment 30 6. Other Methods for Storing Energy 34 Work Method & Acknowledgements This project between the original stakeholders who were, Dansk Fjenrvarmeværkers Forening (DFF), Norsk Hydro Energy

158

Continuously pumping and reactivating gas pump  

DOE Patents [OSTI]

Apparatus for continuous pumping using cycling cyropumping panels. A plurality of liquid helium cooled panels are surrounded by movable nitrogen cooled panels the alternatively expose or shield the helium cooled panels from the space being pumped. Gases condense on exposed helium cooled panels until the nitrogen cooled panels are positioned to isolate the helium cooled panels. The helium cooled panels are incrementally warmed, causing captured gases to accumulate at the base of the panels, where an independent pump removes the gases. After the helium cooled panels are substantially cleaned of condensate, the nitrogen cooled panels are positioned to expose the helium cooled panels to the space being pumped.

Batzer, Thomas H. (Livermore, CA); Call, Wayne R. (Tracy, CA)

1984-01-01T23:59:59.000Z

159

Alternative backing up pump for turbomolecular pumps  

DOE Patents [OSTI]

As an alternative to the use of a mechanical backing pump in the application of wide range turbomolecular pumps in ultra-high and extra high vacuum applications, palladium oxide is used to convert hydrogen present in the evacuation stream and related volumes to water with the water then being cryo-pumped to a low pressure of below about 1.e.sup.-3 Torr at 150.degree. K. Cryo-pumping is achieved using a low cost Kleemenco cycle cryocooler, a somewhat more expensive thermoelectric cooler, a Venturi cooler or a similar device to achieve the required minimization of hydrogen partial pressure.

Myneni, Ganapati Rao (Yorktown, VA)

2003-04-22T23:59:59.000Z

160

Optimal Quantum Pumps  

E-Print Network [OSTI]

We study adiabatic quantum pumps on time scales that are short relative to the cycle of the pump. In this regime the pump is characterized by the matrix of energy shift which we introduce as the dual to Wigner's time delay. The energy shift determines the charge transport, the dissipation, the noise and the entropy production. We prove a general lower bound on dissipation in a quantum channel and define optimal pumps as those that saturate the bound. We give a geometric characterization of optimal pumps and show that they are noiseless and transport integral charge in a cycle. Finally we discuss an example of an optimal pump related to the Hall effect.

J. E. Avron; A. Elgart; G. M. Graf; L. Sadun

2001-07-12T23:59:59.000Z

Note: This page contains sample records for the topic "hydro pumped storage" 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

Gas pump with movable gas pumping panels  

DOE Patents [OSTI]

Apparatus for pumping gas continuously a plurality of articulated panels of getter material, each of which absorbs gases on one side while another of its sides is simultaneously reactivated in a zone isolated by the panels themselves from a working space being pumped.

Osher, John E. (Alamo, CA)

1984-01-01T23:59:59.000Z

162

Charge-pump voltage converter  

DOE Patents [OSTI]

A charge-pump voltage converter for converting a low voltage provided by a low-voltage source to a higher voltage. Charge is inductively generated on a transfer rotor electrode during its transit past an inductor stator electrode and subsequently transferred by the rotating rotor to a collector stator electrode for storage or use. Repetition of the charge transfer process leads to a build-up of voltage on a charge-receiving device. Connection of multiple charge-pump voltage converters in series can generate higher voltages, and connection of multiple charge-pump voltage converters in parallel can generate higher currents. Microelectromechanical (MEMS) embodiments of this invention provide a small and compact high-voltage (several hundred V) voltage source starting with a few-V initial voltage source. The microscale size of many embodiments of this invention make it ideally suited for MEMS- and other micro-applications where integration of the voltage or charge source in a small package is highly desirable.

Brainard, John P. (Albuquerque, NM); Christenson, Todd R. (Albuquerque, NM)

2009-11-03T23:59:59.000Z

163

Canonical Correlation Analysis (CCA) of GRACE, hydrological and hydro-meteorological signals  

E-Print Network [OSTI]

1 Canonical Correlation Analysis (CCA) of GRACE, hydrological and hydro-meteorological signals M. J and Hydro-meteorology Hydrology GRACE Hydro-meteorology RQ dt dS dt dMdS RETP . dt AH a #12;3 GRACE, times based signals #12;12 CCA on catchments based ­ GRACE and hydro-meteorology T GDGDGD T VUQ dt d

Stuttgart, Universität

164

Rotary magnetic heat pump  

DOE Patents [OSTI]

A rotary magnetic heat pump constructed without flow seals or segmented rotor accomplishes recuperation and regeneration by using split flow paths. Heat exchange fluid pumped through heat exchangers and returned to the heat pump splits into two flow components: one flowing counter to the rotor rotation and one flowing with the rotation. 5 figs.

Kirol, L.D.

1987-02-11T23:59:59.000Z

165

Rotary magnetic heat pump  

DOE Patents [OSTI]

A rotary magnetic heat pump constructed without flow seals or segmented rotor accomplishes recuperation and regeneration by using split flow paths. Heat exchange fluid pumped through heat exchangers and returned to the heat pump splits into two flow components: one flowing counter to the rotor rotation and one flowing with the rotation.

Kirol, Lance D. (Shelly, ID)

1988-01-01T23:59:59.000Z

166

1.12.2014bo Akademi Univ -Thermal and Flow Engineering Piispankatu 8, 20500 Turku 1/24 8. Heat pumps, heat pipes,  

E-Print Network [OSTI]

pumps, heat pipes, cold thermal energy storage Ron Zevenhoven Ã?bo Akademi University Thermal and Flow for heating is referred to as a heat pump (mostly based on a vapour-compression cycle) Heat pumps make use electricity!) for heating and air conditioning purposes Heat pumps became popular in the 1970s

Zevenhoven, Ron

167

Energy Storage for Variable Renewable Energy Resource Integration - A Regional Assessment for the Northwest Power Pool (NWPP)  

SciTech Connect (OSTI)

This paper addresses the following key questions in the discussion on the integration of renewable energy resources in the Pacific Northwest power grid: a) what will be the future balancing requirement to accommodate a simulated expansion of wind energy resources from 3.3 GW in 2008 to 14.4 GW in 2019 in the Northwest Power Pool (NWPP), and b) what are the most cost effective technological solutions for meeting the balancing requirements in the Northwest Power Pool (NWPP). A life-cycle analysis was performed to assess the least-cost technology option for meeting the new balancing requirement. The technologies considered in this study include conventional turbines (CT), sodium sulfur (NaS) batteries, lithium ion (Li-ion) batteries, pumped hydro energy storage (PH), and demand response (DR). Hybrid concepts that combine 2 or more of the technologies above are also evaluated. This analysis was performed with collaboration by the Bonneville Power Administration and funded by the Energy Storage Systems Program of the U.S. Department of Energy.

Kintner-Meyer, Michael CW; Jin, Chunlian; Balducci, Patrick J.; Elizondo, Marcelo A.; Guo, Xinxin; Nguyen, Tony B.; Tuffner, Francis K.; Viswanathan, Vilayanur V.

2011-03-20T23:59:59.000Z

168

Liquid metal electric pump  

DOE Patents [OSTI]

An electrical pump for pumping liquid metals to high pressures in high temperature environments without the use of magnets or moving mechanical parts. The pump employs a non-porous solid electrolyte membrane, typically ceramic, specific to the liquid metal to be pumped. A DC voltage is applied across the thickness of the membrane causing ions to form and enter the membrane on the electrically positive surface, with the ions being neutralized on the opposite surface. This action provides pumping of the liquid metal from one side of the non-porous solid electrolyte membrane to the other.

Abbin, Joseph P. (Albuquerque, NM); Andraka, Charles E. (Albuquerque, NM); Lukens, Laurance L. (Albuquerque, NM); Moreno, James B. (Albuquerque, NM)

1992-01-01T23:59:59.000Z

169

Liquid metal electric pump  

DOE Patents [OSTI]

An electrical pump for pumping liquid metals to high pressures in high temperature environments without the use of magnets or moving mechanical parts. The pump employs a non-porous solid electrolyte membrane, typically ceramic, specific to the liquid metal to be pumped. A DC voltage is applied across the thickness of the membrane causing ions to form and enter the membrane on the electrically positive surface, with the ions being neutralized on the opposite surface. This action provides pumping of the liquid metal from one side of the non-porous solid electrolyte membrane to the other. 3 figs.

Abbin, J.P.; Andraka, C.E.; Lukens, L.L.; Moreno, J.B.

1992-01-14T23:59:59.000Z

170

EIS-0166: Bangor Hydro-Electric Transmission Line, Maine  

Broader source: Energy.gov [DOE]

The Department of Energy prepared this environmental impact statement while considering whether to authorize a Presidential permit for Bangor Hydro to construct a new electric transmission facility at the U.S. border with Canada.

171

Final Report - Wind and Hydro Energy Feasibility Study - June 2011  

SciTech Connect (OSTI)

This feasibility examined two of the Yurok Tribe's most promising renewable energy resources, wind and hydro, to provide the Tribe detailed, site specific information that will result in a comprehensive business plan sufficient to implement a favorable renewable energy project.

Jim Zoellick; Richard Engel; Rubin Garcia; Colin Sheppard

2011-06-17T23:59:59.000Z

172

Flood survival: Getting a hydro plant back on line  

SciTech Connect (OSTI)

The Remmel Dam and Hydro Plant of Arkansas Power and Light Company was flooded on May 20, 1990. This article describes the teamwork and innovation that went into restoring the powerhouse in a short amount of time.

Weatherford, C.W. (Entergy Services, Inc., Little Rock, AR (United States))

1991-12-01T23:59:59.000Z

173

International Workshop on Geomechanics and Energy The Ground as Energy Source and Storage Lausanne, Switzerland, 26-28 November 2013  

E-Print Network [OSTI]

International Workshop on Geomechanics and Energy ­ The Ground as Energy Source and Storage storage. In any such application, a deep understanding of the hydro- mechanical behaviour of the involved region of Switzerland. #12;International Workshop on Geomechanics and Energy ­ The Ground as Energy

Candea, George

174

Packaging design criteria, transfer and disposal of 102-AP mixer pump  

SciTech Connect (OSTI)

A mixer pump installed in storage tank 241-AP-102 (102-AP) has failed. This pump is referred to as the 102-AP mixer pump (APMP). The APMP will be removed from 102-AP 1 and a new pump will be installed. The main purpose of the Packaging Design Criteria (PDC) is to establish criteria necessary to design and fabricate a shipping container for the transfer and storage of the APMP from 102-AP. The PDC will be used as a guide to develop a Safety Evaluation for Packaging (SEP).

Carlstrom, R.F.

1994-11-23T23:59:59.000Z

175

CoverSheet  

Office of Scientific and Technical Information (OSTI)

storage technology is varied Expensive battery flywheel capacitor Cheap Pumped hydro Fuel cellelectrolyzer | UNCLASSIFIED | 26 Operated by Los Alamos National Security, LLC...

176

Microsoft PowerPoint - Carlsen.ppt  

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

* Pursuing balanced portfolio of renewable and low carbon options - Substantial existing hydro and pumped storage - Biomass * Mitchell conversion 2012 * Studying re-powering and...

177

ARPA-E 2011 Keynote: Dr. Arun Majumdar | Department of Energy  

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

- gigawatt (power ?) - (inaudible) - storage. The way we do that today is by pumped hydro, using the dam in reverse. And that's about a hundred dollars a kilowatt hour,...

178

U.S. Energy Information Administration (EIA) - Sector  

Gasoline and Diesel Fuel Update (EIA)

CHP plants. f "Other" includes conventional hydro, geothermal, wood, wood waste, all municipal waste, landfill gas, other biomass, solar, wind power, pumped storage, and fuel cells...

179

Energy Storage Program Overview  

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-UpHeat PumpRecord ofESPC ENABLE:2009Applications - Report |ofSectorSTORAGE 101The

180

The Effects of Recharge, Agricultural Pumping and Municipal Pumping on Springflow and Pumping Lifts Within the Edwards Aquifer  

E-Print Network [OSTI]

The Effects of Recharge, Agricultural Pumping and Municipal Pumping on Springflow and Pumping Lifts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 The Effects of Recharge and Pumping Over Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 The Effects of Agricultural Pumping, Municipal Pumping and Recharge on Comal Springflow

McCarl, Bruce A.

Note: This page contains sample records for the topic "hydro pumped storage" 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

Proceedings of the DOE chemical energy storage and hydrogen energy systems contracts review  

SciTech Connect (OSTI)

Sessions were held on electrolysis-based hydrogen storage systems, hydrogen production, hydrogen storage systems, hydrogen storage materials, end-use applications and system studies, chemical heat pump/chemical energy storage systems, systems studies and assessment, thermochemical hydrogen production cycles, advanced production concepts, and containment materials. (LHK)

Not Available

1980-02-01T23:59:59.000Z

182

Evolving Einstein's Field Equations with Matter: The ``Hydro without Hydro'' Test  

E-Print Network [OSTI]

We include matter sources in Einstein's field equations and show that our recently proposed 3+1 evolution scheme can stably evolve strong-field solutions. We insert in our code known matter solutions, namely the Oppenheimer-Volkoff solution for a static star and the Oppenheimer-Snyder solution for homogeneous dust sphere collapse to a black hole, and evolve the gravitational field equations. We find that we can evolve stably static, strong-field stars for arbitrarily long times and can follow dust sphere collapse accurately well past black hole formation. These tests are useful diagnostics for fully self-consistent, stable hydrodynamical simulations in 3+1 general relativity. Moreover, they suggest a successive approximation scheme for determining gravitational waveforms from strong-field sources dominated by longitudinal fields, like binary neutron stars: approximate quasi-equilibrium models can serve as sources for the transverse field equations, which can be evolved without having to re-solve the hydrodynamical equations (``hydro without hydro'').

Thomas W. Baumgarte; Scott A. Hughes; Stuart L. Shapiro

1999-02-09T23:59:59.000Z

183

Mechanical Compression Heat Pumps  

E-Print Network [OSTI]

MECHANICAL COMPRESSION HEAT PUMPS Thomas-L. Apaloo and K. Kawamura Mycom Corporation, Los Angeles, California J. Matsuda, Mayekawa Mfg. Co., Tokyo, Japan ABSTRACT Mechanical compression heat pumping is not new in industrial applications.... In fact, industry history suggests that the theoretical concept was developed before 1825. Heat pump manufacturers gained the support of consultants and end-users when the energy crisis hit this country in 1973. That interest, today, has been...

Apaloo, T. L.; Kawamura, K.; Matsuda, J.

184

Detection of pump degradation  

SciTech Connect (OSTI)

This Phase II Nuclear Plant Aging Research study examines the methods of detecting pump degradation that are currently employed in domestic and overseas nuclear facilities. This report evaluates the criteria mandated by required pump testing at U.S. nuclear power plants and compares them to those features characteristic of state-of-the-art diagnostic programs and practices currently implemented by other major industries. Since the working condition of the pump driver is crucial to pump operability, a brief review of new applications of motor diagnostics is provided that highlights recent developments in this technology. The routine collection and analysis of spectral data is superior to all other technologies in its ability to accurately detect numerous types and causes of pump degradation. Existing ASME Code testing criteria do not require the evaluation of pump vibration spectra but instead overall vibration amplitude. The mechanical information discernible from vibration amplitude analysis is limited, and several cases of pump failure were not detected in their early stages by vibration monitoring. Since spectral analysis can provide a wealth of pertinent information concerning the mechanical condition of rotating machinery, its incorporation into ASME testing criteria could merit a relaxation in the monthly-to-quarterly testing schedules that seek to verify and assure pump operability. Pump drivers are not included in the current battery of testing. Operational problems thought to be caused by pump degradation were found to be the result of motor degradation. Recent advances in nonintrusive monitoring techniques have made motor diagnostics a viable technology for assessing motor operability. Motor current/power analysis can detect rotor bar degradation and ascertain ranges of hydraulically unstable operation for a particular pump and motor set. The concept of using motor current or power fluctuations as an indicator of pump hydraulic load stability is presented.

Greene, R.H.; Casada, D.A.; Ayers, C.W. [and others

1995-08-01T23:59:59.000Z

185

Study of particle pumping characteristics for different pumping geometries in  

E-Print Network [OSTI]

Study of particle pumping characteristics for different pumping geometries in JT-60U and DIII, Princeton, New Jersey, United States of America Abstract. Particle pumping characteristics were compared between pumping from the inner side private flux region (IPP) and pumping from both sides of the private

Karney, Charles

186

III. Vacuum PumpsIII. Vacuum Pumps Gas transfer  

E-Print Network [OSTI]

III. Vacuum PumpsIII. Vacuum Pumps Mechanism Gas transfer Gas capture FunctionFunction Roughing (backing, mechanical pumps) Rotary vane Sorption Rotary lobe Scroll ScrewSorption, Rotary lobe, Scroll Phy250-1, 2011, NanoFab16 #12;IIIIII--A. Roughing: Rotary Vane PumpA. Roughing: Rotary Vane Pump (Gas

Liu, Kai

187

Submersible sodium pump  

DOE Patents [OSTI]

An electromagnetic submerged pump has an outer cylindrical stator with an inner cylindrical conductive core for the submerged pumping of sodium in the cylindrical interstitial volume defined between the stator and core. The cylindrical interstitial volume is typically vertically oriented, and defines an inlet at the bottom and an outlet at the top. The outer stator generates upwardly conveyed toroidal magnetic fields, which fields convey preferably from the bottom of the pump to the top of the pump liquid sodium in the cold leg of a sodium cooled nuclear reactor. The outer cylindrical stator has a vertically disposed duct surrounded by alternately stacked layers of coil units and laminates. 14 figs.

Brynsvold, G.V.; Lopez, J.T.; Olich, E.E.; West, C.W.

1989-11-21T23:59:59.000Z

188

Minimize pump downtime  

SciTech Connect (OSTI)

In refineries and petrochemical plants, centrifugal pumps usually lead the list of equipment that is most susceptible to failure. Using guidelines, maintenance mechanics can improve troubleshooting methods when investigating pump bedplates, underlying concrete foundations and grouting problems. Too often, mechanics may improperly diagnose a misalignment--caused by grouting problems--as an unbalance or a bearing-wearing problem when troubleshooting pump failure. Result: bearing, shaft and seal failures occur from a flawed maintenance procedure. Identifying mounting-surface problems can improve pump performance and decrease unit downtime.

Myers, R.D. [ITW Escoweld Systems, Kingwood, TX (United States)

1995-06-01T23:59:59.000Z

189

Assess the key physics that underpins high-hydro coupling-efficiency in NDCX-II experiments and high-gain heavy ion direct drive target designs using proven hydro codes like HYDRA  

E-Print Network [OSTI]

physics that underpins high-hydro coupling-efficiency in N Dtarget designs using proven hydro codes like H Y D R A . byF E targets, we have studied hydro and implosion efficiency

Barnard, J. J.

2010-01-01T23:59:59.000Z

190

Well-pump alignment system  

DOE Patents [OSTI]

An improved well-pump for geothermal wells, an alignment system for a well-pump, and to a method for aligning a rotor and stator within a well-pump, wherein the well-pump has a whistle assembly formed at a bottom portion thereof, such that variations in the frequency of the whistle, indicating misalignment, may be monitored during pumping.

Drumheller, Douglas S. (Cedar Crest, NM)

1998-01-01T23:59:59.000Z

191

Flow pumping system for physiological waveforms  

E-Print Network [OSTI]

controlled pulsatile pump system for physiological ?owthe task of ?ow waveform generation between two pumps: agear pump generates the mean component and a piston pump

Tsai, William; Sava?, Ömer

2010-01-01T23:59:59.000Z

192

Pump apparatus including deconsolidator  

DOE Patents [OSTI]

A pump apparatus includes a particulate pump that defines a passage that extends from an inlet to an outlet. A duct is in flow communication with the outlet. The duct includes a deconsolidator configured to fragment particle agglomerates received from the passage.

Sonwane, Chandrashekhar; Saunders, Timothy; Fitzsimmons, Mark Andrew

2014-10-07T23:59:59.000Z

193

Pioneering Heat Pump Project  

Broader source: Energy.gov [DOE]

Project objectives: To install and monitor an innovative WaterFurnace geothermal system that is technologically advanced and evolving; To generate hot water heating from a heat pump that uses non-ozone depleting refrigerant CO2. To demonstrate the energy efficiency of this system ground source heat pump system.

194

Normetex Pump Alternatives Study  

SciTech Connect (OSTI)

A mainstay pump for tritium systems, the Normetex scroll pump, is currently unavailable because the Normetex company went out of business. This pump was an all-metal scroll pump that served tritium processing facilities very well. Current tritium system operators are evaluating replacement pumps for the Normetex pump and for general used in tritium service. An all-metal equivalent alternative to the Normetex pump has not yet been identified. 1. The ideal replacement tritium pump would be hermetically sealed and contain no polymer components or oils. Polymers and oils degrade over time when they contact ionizing radiation. 2. Halogenated polymers (containing fluorine, chlorine, or both) and oils are commonly found in pumps. These materials have many properties that surpass those of hydrocarbon-based polymers and oils, including thermal stability (higher operating temperature) and better chemical resistance. Unfortunately, they are less resistant to degradation from ionizing radiation than hydrocarbon-based materials (in general). 3. Polymers and oils can form gaseous, condensable (HF, TF), liquid, and solid species when exposed to ionizing radiation. For example, halogenated polymers form HF and HCl, which are extremely corrosive upon reaction with water. If a pump containing polymers or oils must be used in a tritium system, the system must be designed to be able to process the unwanted by-products. Design features to mitigate degradation products include filters and chemical or physical traps (eg. cold traps, oil traps). 4. Polymer components can work in tritium systems, but must be replaced regularly. Polymer components performance should be monitored or be regularly tested, and regular replacement of components should be viewed as an expected normal event. A radioactive waste stream must be established to dispose of used polymer components and oil with an approved disposal plan developed based on the facility location and its regulators. Polymers have varying resistances to ionizing radiation - aromatic polymers such as polyimide Vespel (TM) and the elastomer EPDM (ethylene propylene diene monomer) have been found to be more resistant to degradation in tritium than other polymers. This report presents information to help select replacement pumps for Normetex pumps in tritium systems. Several pumps being considered as Normetex replacement pumps are discussed.

Clark, E.

2013-04-25T23:59:59.000Z

195

Successful Application of Heat Pumps to a DHC System in the Tokyo Bay Area  

E-Print Network [OSTI]

The Harumi-Island District Heating & Cooling (DHC), which is located in the Tokyo Bay area, introduced the heat pump and thermal storage system with the aim of achieving minimum energy consumption, minimum environmental load, and maximum economical...

Yanagihara, R.; Okagaki, A.

2006-01-01T23:59:59.000Z

196

Climatic regulation of the Black Sea hydro-meteorological and ecological properties at interannual-to-decadal time scales  

E-Print Network [OSTI]

Climatic regulation of the Black Sea hydro-meteorological and ecological properties at interannual Available online 3 March 2006 Abstract An examination of a wide spectrum of hydro

Dippner, Joachim W.

197

Application of life cycle assessment methodology at Ontario Hydro  

SciTech Connect (OSTI)

Ontario Hydro is an electrical utility located in Ontario, Canada. In 1995, Ontario Hydro adopted Sustainable Energy Development Policy and Principles that include the governing principle: {open_quotes}Ontario Hydro will integrate environmental and social factors into its planning, decision-making, and business practices.{close_quotes} Life cycle assessment was identified as a useful tool for evaluating environmental impacts of products and processes in support of decision-making. Ontario Hydro has developed a methodology for life cycle assessment (LCA) that is consistent with generally accepted practices, practical, and suitable for application in Ontario Hydro Business Units. The methodology is based on that developed by the Society of Environmental Toxicology and Chemistry (SETAC) but follows a pragmatic and somewhat simplified approach. In scoping an LCA, the breadth and depth of analysis are compatible with and sufficient to address the stated goal of the study. The depth of analysis is tied to (i) the dollar value of the commodity, process or activity being assessed, (ii) the degree of freedom available to the assessor to make meaningful choices among options, and (iii) the importance of the environmental or technological issues leading to the evaluation. A pilot study was completed to apply the methodology to an LCA of the light vehicle fleet (cars, vans and light pick-up trucks) at Ontario Hydro. The objective of the LCA was to compare the life cycle impacts of alternative vehicle fuel cycles: gasoline, diesel, natural gas, propane, and alcohol; with particular focus on life cycle emissions, efficiency and cost. The study concluded that for large vehicles (1/2 ton and 3/4 ton) that travel more than 35000 km/year, natural gas and propane fuelling offer both cost reduction and emissions reduction when compared to gasoline vehicles.

Reuber, B.; Khan, A. [Ontario Hydro, Ontario (Canada)

1996-12-31T23:59:59.000Z

198

E-Print Network 3.0 - antas river hydro Sample Search Results  

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

Luytens Close, Chineham, Hants, UK Summary: productivity and lifetime. Hydropower on a small-scale, or micro-hydro, is the exploitation of a river's hydro... of the water at the...

199

Hydro-Ecologic Responses to Land Use in Small Urbanizing Watersheds Within the Chesapeake Bay  

E-Print Network [OSTI]

Hydro-Ecologic Responses to Land Use in Small Urbanizing Watersheds Within the Chesapeake Bay. The consequences for both the hydrology and 41 #12;42 HYDRO-ECOLOGIC RESPONSES TO LAND USE IN SMALL URBANIZING

Palmer, Margaret A.

200

Simulated watershed responses to land cover changes using the Regional Hydro-Ecological Simulation System  

E-Print Network [OSTI]

Simulated watershed responses to land cover changes using the Regional Hydro-Ecological Simulation Old Main Hill, Logan, UT, 84322-8200, USA Abstract: In this work, we used the Regional Hydro

Tarboton, David

Note: This page contains sample records for the topic "hydro pumped storage" 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

Maximizing Energy Savings Reliability in BC Hydro Industrial Demand-side Management Programs  

E-Print Network [OSTI]

Maximizing Energy Savings Reliability in BC Hydro Industrial Demand-side Management Programs Supervisory Committee Maximizing Energy Savings Reliability in BC Hydro Industrial Demand-side Management of Environmental Studies) Departmental Member For energy utilities faced with expanded jurisdictional energy

Victoria, University of

202

Energy Storage  

ScienceCinema (OSTI)

ORNL Distinguished Scientist Parans Paranthaman is discovering new materials with potential for greatly increasing batteries' energy storage capacity and bring manufacturing back to the US.

Paranthaman, Parans

2014-06-23T23:59:59.000Z

203

Energy Storage  

SciTech Connect (OSTI)

ORNL Distinguished Scientist Parans Paranthaman is discovering new materials with potential for greatly increasing batteries' energy storage capacity and bring manufacturing back to the US.

Paranthaman, Parans

2014-06-03T23:59:59.000Z

204

ROOT LOCUS TECHNIQUE 323 7.6.1 Hydro Power Plant Experiment  

E-Print Network [OSTI]

ROOT LOCUS TECHNIQUE 323 7.6.1 Hydro Power Plant Experiment The design of a static controller for a real hydro power plant is considered in Skatariâ?? c and Gajiâ?? c (1992). The hydro power plant is treated variables of this hydro power plant are represented by x T = [1` 1! 1u f 1/ d 1/ q 1/ f 1/D 1/Q ] where 1

Gajic, Zoran

205

To: NW Hydro Association From: Dick Wanderscheid, Angus Duncan and Todd Reeve  

E-Print Network [OSTI]

Memo To: NW Hydro Association From: Dick Wanderscheid, Angus Duncan and Todd Reeve Re: The Bonneville Environmental Foundation's comments on the draft hydro potential study BEF staff completed to address the larger, conceptual picture of the hydro potential in the region. In particular, we attempted

206

Evaluation of the Hydro-Thermodynamic Soil Vegetation Scheme and implementation of a new numerical scheme  

E-Print Network [OSTI]

ii Evaluation of the Hydro-Thermodynamic Soil Vegetation Scheme and implementation of a new.S. Fairbanks, Alaska August 2005 #12;iii Abstract The Hydro-Thermodynamic Soil-Vegetation Scheme (HTSVS........................................................................................................................... 24 Evaluation of snow depth and soil temperatures predicted by the Hydro- Thermodynamic Soil

Moelders, Nicole

207

Arctic Region Evaluation of the Hydro-Thermodynamic Soil Vegetation Scheme (HTSVS)  

E-Print Network [OSTI]

Arctic Region Evaluation of the Hydro-Thermodynamic Soil Vegetation Scheme (HTSVS) Pamela Spier, University of Alaska, Fairbanks, AK Abstract This paper presents an evaluation of the Hydro. Introduction and Motivation The Hydro-Thermodynamic Soil Vegetation Scheme (HTSVS, Kramm et al. 1996, Mölders

Moelders, Nicole

208

Towards Better Utilization of NEXRAD Data in Hydrology: an Overview of Hydro-NEXRAD  

E-Print Network [OSTI]

Towards Better Utilization of NEXRAD Data in Hydrology: an Overview of Hydro-NEXRAD Witold F metadata extraction and management techniques are required. The authors describe and discuss the Hydro of the Hydro-NEXRAD project is to increase the use of NEXRAD data in hydrologic research. The project

Lawrence, Ramon

209

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

210

Constraints on the lake volume required for hydro-fracture through ice sheets  

E-Print Network [OSTI]

Constraints on the lake volume required for hydro-fracture through ice sheets M. J. Krawczynski,1 M April 2009; published 16 May 2009. [1] Water-filled cracks are an effective mechanism to drive hydro to rapidly drive hydro-fractures through 1­1.5 km of subfreezing ice. This represents $98% of the meltwater

Skemer, Philip

211

14 IEEE power & energy magazine july/august 2008 THE CONTRIBUTION OF HYDRO-  

E-Print Network [OSTI]

14 IEEE power & energy magazine july/august 2008 T THE CONTRIBUTION OF HYDRO- power to modern%, with these differences reflecting respective economic devel- opment. Hydro contributes 17% of the total world electricity hand, the interna- tional antidam lobby demands that major hydro developments be stopped altogether

Dixon, Juan

212

Estimating runoff using hydro-geodetic approaches; assessment and comparison M. J. Tourian1  

E-Print Network [OSTI]

Estimating runoff using hydro-geodetic approaches; assessment and comparison M. J. Tourian1 , C- drological balance equation, hydro-meteorological balance equation, least squares prediction using change from GRACE hydro-meteorological balance equation (Ratm) Ratm = - · Q - dM dt . · Q refers

Stuttgart, Universität

213

Climate Change in Scotland: Impact on Mini-Hydro G.P. Harrison  

E-Print Network [OSTI]

be generated from wind, wave, biomass or small- or mini-hydro plant. Production from these resources some 300 MW is small hydro potential capable of producing energy at less than 7p/kWh (Garrad Hassan, 2001). Although many of the better sites for small and mini-hydro have already been developed

Harrison, Gareth

214

Hierarchical Control Strategy for a Hybrid Hydro-mechanical Transmission (HMT) Power-Train  

E-Print Network [OSTI]

Hierarchical Control Strategy for a Hybrid Hydro-mechanical Transmission (HMT) Power-Train Kai Loon a Hydro-mechanical Transmission (HMT) or power-split archi- tecture is being developed as a testbed within hybrid powertrain has a hydro- mechanical transmission (HMT) or power-split architecture. This combines

Li, Perry Y.

215

Dimensionnement et gestion d'un systme de stockage thermique par hydro-accumulation : application la  

E-Print Network [OSTI]

Dimensionnement et gestion d'un système de stockage thermique par hydro-accumulation : application de stockage thermique de type hydro-accumulation destiné à une chaufferie collective multi, mix-énergétique, stockage thermique, hydro-accumulation, dimensionnement optimal, gestion, graphe d

Paris-Sud XI, Université de

216

Mod`ele Elements Finis d'un Pli Vocal Artificiel avec Couplage Hydro-elastique  

E-Print Network [OSTI]

Mod`ele El´ements Finis d'un Pli Vocal Artificiel avec Couplage Hydro-´elastique N. Hermanta , F formulation variationnelle du couplage hydro-élastique. Un premier calcul hyper-élastique simule le gonflement dans l'analyse modale des vibrations de petite amplitude du système hydro-élastique, permettant ainsi

Paris-Sud XI, Université de

217

NOAA Technical Memorandum NWS HYDRO 39 PROBABLE MAXIMUM PRECIPITATION FOR THE UPPER  

E-Print Network [OSTI]

NOAA Technical Memorandum NWS HYDRO 39 PROBABLE MAXIMUM PRECIPITATION FOR THE UPPER DEERFIELD RIVER The Office of Hydrology (HYDRO) of the National Weather Service (NWS) develops procedures for making river agencies, and conducts pertinent research and development. NOAA Technical Memorandums in the NWS HYDRO

218

Title: Hydraulic modeling of a mixed water level control hydro-mechanical gate  

E-Print Network [OSTI]

Title: Hydraulic modeling of a mixed water level control hydro-mechanical gate Ludovic Cassan1 Abstract: The article describes the hydraulic functioning of a mixed water level control hydro- mechanical of the model to reproduce the functioning of this complex hydro-mechanical system. CE database Subject headings

Paris-Sud XI, Université de

219

Numerical Modeling of Hydro-acoustic Waves In Weakly Compressible Fluid Ali Abdolali1,2  

E-Print Network [OSTI]

Numerical Modeling of Hydro-acoustic Waves In Weakly Compressible Fluid Ali Abdolali1,2 , James T of Civil Engineering, University of Roma Tre Low-frequency hydro-acoustic waves are precursors of tsunamis. Detection of hydro-acoustic waves generated due to the water column compression triggered by sudden seabed

Kirby, James T.

220

LOCAL UNDERSTANDING OF HYDRO-CLIMATE CHANGES IN MONGOLIA Submitted by  

E-Print Network [OSTI]

THESIS LOCAL UNDERSTANDING OF HYDRO-CLIMATE CHANGES IN MONGOLIA Submitted by Tumenjargal Sukh 2012 All Rights Reserved #12;ABSTRACT LOCAL UNDERSTANDING OF HYDRO-CLIMATE CHANGES IN MONGOLIA Air the degree of change of Mongolian water resources. We find that herders' local knowledge of hydro

MacDonald, Lee

Note: This page contains sample records for the topic "hydro pumped storage" 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

A lattice-based query system for assessing the quality of hydro-ecosystems  

E-Print Network [OSTI]

A lattice-based query system for assessing the quality of hydro-ecosystems Agn`es Braud1 Cristina used for building a hierarchy of site pro- files which are annotated by hydro in the project. This paper presents an application of Galois lattices to the hydro-ecological domain, focussing

Paris-Sud XI, Université de

222

Operation of a steam hydro-gasifier in a fluidized bed reactor  

E-Print Network [OSTI]

OF A S T E A M HYDRO-GASIFIER IN A FLUIDIZED BED REACTOROF A S T E A M HYDRO-GASIFIER IN A FLUIDIZED BED REACTOR F Iis fed into a hydro-gasifier reactor. One such process was

Park, Chan Seung; Norbeck, Joseph N.

2008-01-01T23:59:59.000Z

223

Solving the Unit Commitment Problem in Power Generation by Primal and Dual Methods  

E-Print Network [OSTI]

- storage hydro plants a large-scale mixed integer optimization model for unit commitment is developed optimal scheduling of on/o decisions and output levels for generating units in a power system over on the shares of nuclear, conventional thermal, hydro and pumped-storage hydro power in the underlying

Römisch, Werner

224

Multi-Source Hydronic Heat Pump System Performance Test Bed  

E-Print Network [OSTI]

pump unit) with a central chilled water storage tank. The MSHHP system uses significantly less energy than a conventional HVAC system, and lowers peak demand by shifting required electrical energy consumption to lower-cost, off-peak and mid-peak rates...

Meckler, M.

1984-01-01T23:59:59.000Z

225

Absorption heat pump system  

DOE Patents [OSTI]

The efficiency of an absorption heat pump system is improved by conducting liquid from a second stage evaporator thereof to an auxiliary heat exchanger positioned downstream of a primary heat exchanger in the desorber of the system.

Grossman, G.

1982-06-16T23:59:59.000Z

226

Abstract adiabatic charge pumping  

E-Print Network [OSTI]

This paper is devoted to the analysis of an abstract formula describing quantum adiabatic charge pumping in a general context. We consider closed systems characterized by a slowly varying time-dependent Hamiltonian depending on an external parameter $\\alpha$. The current operator, defined as the derivative of the Hamiltonian with respect to $\\alpha$, once integrated over some time interval, gives rise to a charge pumped through the system over that time span. We determine the first two leading terms in the adiabatic parameter of this pumped charge under the usual gap hypothesis. In particular, in case the Hamiltonian is time periodic and has discrete non-degenerate spectrum, the charge pumped over a period is given to leading order by the derivative with respect to $\\alpha$ of the corresponding dynamical and geometric phases.

A. Joye; V. Brosco; F. Hekking

2010-02-05T23:59:59.000Z

227

Absorption heat pump system  

DOE Patents [OSTI]

The efficiency of an absorption heat pump system is improved by conducting liquid from a second stage evaporator thereof to an auxiliary heat exchanger positioned downstream of a primary heat exchanger in the desorber of the system.

Grossman, Gershon (Oak Ridge, TN)

1984-01-01T23:59:59.000Z

228

Hydro, Solar, Wind The Future of Renewable Energy  

E-Print Network [OSTI]

Hydro, Solar, Wind The Future of Renewable Energy Joseph Flocco David Lath Department of Electrical. Hydropower Water has grown in previous years to become the most widely used form of renewable energy across years to come from Hydropower. It is considered to be a renewable energy source because it uses

Lavaei, Javad

229

Downscaling, Data Fusion, and Data Assimilation in Hydro-meteorology  

E-Print Network [OSTI]

Downscaling, Data Fusion, and Data Assimilation in Hydro (1997 -) GPM (2014 -) PR #12;3 GPM: a multi-satellite mission extending beyond the tropics #12;4 DPR of precipitation #12;Multi-sensor Data Fusion Problem · Optimal merging of multi-sensor precipitation observations

230

Policies supporting Heat Pump Technologies  

E-Print Network [OSTI]

Policies supporting Heat Pump Technologies in Canada IEA Heat Pump Workshop London, UK November 13 in the world, with an average of 16,995 kilowatt-hours per annum. #12;Canada's Context for Heat Pumps Impacts avenues: Ground source heat pumps for cold climates (heating and cooling) Reversible air source heat

Oak Ridge National Laboratory

231

Well-pump alignment system  

DOE Patents [OSTI]

An improved well-pump for geothermal wells, an alignment system for a well-pump, and to a method for aligning a rotor and stator within a well-pump are disclosed, wherein the well-pump has a whistle assembly formed at a bottom portion thereof, such that variations in the frequency of the whistle, indicating misalignment, may be monitored during pumping. 6 figs.

Drumheller, D.S.

1998-10-20T23:59:59.000Z

232

Transient Dynamics in Molecular Junctions: Coherent Bichromophoric Molecular Electron Pumps  

E-Print Network [OSTI]

The possibility of using single molecule junctions as electron pumps for energy conversion and storage is considered. It is argued that the small dimensions of these systems enable to make use of unique intra-molecular quantum coherences in order to pump electrons between two leads and to overcome relaxation processes which tend to suppress the pumping efficiency. In particular, we demonstrate that a selective transient excitation of one chromophore in a bi-chromophoric donor-bridge-acceptor molecular junction model yields currents which transfer charge (electron and holes) unevenly to the two leads in the absence of a bias potential. The utility of this mechanism for charge pumping in steady state conditions is proposed.

Roie Volkovich; Uri Peskin

2010-12-01T23:59:59.000Z

233

Hydrogen Storage  

Fuel Cell Technologies Publication and Product Library (EERE)

This 2-page fact sheet provides a brief introduction to hydrogen storage technologies. Intended for a non-technical audience, it explains the different ways in which hydrogen can be stored, as well a

234

Fluid pumping apparatus  

DOE Patents [OSTI]

A method and apparatus suitable for coupling seismic or other downhole sensors to a borehole wall in high temperature and pressure environments. In one embodiment, one or more metal bellows mounted to a sensor module are inflated to clamp the sensor module within the borehole and couple an associated seismic sensor to a borehole wall. Once the sensing operation is complete, the bellows are deflated and the sensor module is unclamped by deflation of the metal bellows. In a further embodiment, a magnetic drive pump in a pump module is used to supply fluid pressure for inflating the metal bellows using borehole fluid or fluid from a reservoir. The pump includes a magnetic drive motor configured with a rotor assembly to be exposed to borehole fluid pressure including a rotatable armature for driving an impeller and an associated coil under control of electronics isolated from borehole pressure.

West, Phillip B. (Idaho Falls, ID)

2006-01-17T23:59:59.000Z

235

Reactor coolant pump flywheel  

DOE Patents [OSTI]

A flywheel for a pump, and in particular a flywheel having a number of high density segments for use in a nuclear reactor coolant pump. The flywheel includes an inner member and an outer member. A number of high density segments are provided between the inner and outer members. The high density segments may be formed from a tungsten based alloy. A preselected gap is provided between each of the number of high density segments. The gap accommodates thermal expansion of each of the number of segments and resists the hoop stress effect/keystoning of the segments.

Finegan, John Raymond; Kreke, Francis Joseph; Casamassa, John Joseph

2013-11-26T23:59:59.000Z

236

Molecular heat pump  

E-Print Network [OSTI]

We propose a novel molecular device that pumps heat against a thermal gradient. The system consists of a molecular element connecting two thermal reservoirs that are characterized by different spectral properties. The pumping action is achieved by applying an external force that periodically modulates molecular levels. This modulation affects periodic oscillations of the internal temperature of the molecule and the strength of its coupling to each reservoir resulting in a net heat flow in the desired direction. The heat flow is examined in the slow and fast modulation limits and for different modulation waveforms, thus making it possible to optimize the device performance.

Dvira Segal; Abraham Nitzan

2005-10-11T23:59:59.000Z

237

Measuring axial pump thrust  

DOE Patents [OSTI]

An apparatus for measuring the hydraulic axial thrust of a pump under operation conditions is disclosed. The axial thrust is determined by forcing the rotating impeller off of an associated thrust bearing by use of an elongate rod extending coaxially with the pump shaft. The elongate rod contacts an impeller retainer bolt where a bearing is provided. Suitable measuring devices measure when the rod moves to force the impeller off of the associated thrust bearing and the axial force exerted on the rod at that time. The elongate rod is preferably provided in a housing with a heat dissipation mechanism whereby the hot fluid does not affect the measuring devices. 1 fig.

Suchoza, B.P.; Becse, I.

1988-11-08T23:59:59.000Z

238

Acoustical heat pumping engine  

DOE Patents [OSTI]

The disclosure is directed to an acoustical heat pumping engine without moving seals. A tubular housing holds a compressible fluid capable of supporting an acoustical standing wave. An acoustical driver is disposed at one end of the housing and the other end is capped. A second thermodynamic medium is disposed in the housing near to but spaced from the capped end. Heat is pumped along the second thermodynamic medium toward the capped end as a consequence both of the pressure oscillation due to the driver and imperfect thermal contact between the fluid and the second thermodynamic medium. 2 figs.

Wheatley, J.C.; Swift, G.W.; Migliori, A.

1983-08-16T23:59:59.000Z

239

Fusion reactor pumped laser  

DOE Patents [OSTI]

A nuclear pumped laser capable of producing long pulses of very high power laser radiation is provided. A toroidal fusion reactor provides energetic neutrons which are slowed down by a moderator. The moderated neutrons are converted to energetic particles capable of pumping a lasing medium. The lasing medium is housed in an annular cell surrounding the reactor. The cell includes an annular reflecting mirror at the bottom and an annular output window at the top. A neutron reflector is disposed around the cell to reflect escaping neutrons back into the cell. The laser radiation from the annular window is focused onto a beam compactor which generates a single coherent output laser beam.

Jassby, Daniel L. (Princeton, NJ)

1988-01-01T23:59:59.000Z

240

Velocity pump reaction turbine  

DOE Patents [OSTI]

An expanding hydraulic/two-phase velocity pump reaction turbine including a dual concentric rotor configuration with an inter-rotor annular flow channel in which the inner rotor is mechanically driven by the outer rotor. In another embodiment, the inner rotor is immobilized and provided with gas recovery ports on its outer surface by means of which gas in solution may be recovered. This velocity pump reaction turbine configuration is capable of potential energy conversion efficiencies of up to 70%, and is particularly suited for geothermal applications.

House, Palmer A. (Walnut Creek, CA)

1982-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydro pumped storage" 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

Velocity pump reaction turbine  

DOE Patents [OSTI]

An expanding hydraulic/two-phase velocity pump reaction turbine including a dual concentric rotor configuration with an inter-rotor annular flow channel in which the inner rotor is mechanically driven by the outer rotor. In another embodiment, the inner rotor is immobilized and provided with gas recovery ports on its outer surface by means of which gas in solution may be recovered. This velocity pump reaction turbine configuration is capable of potential energy conversion efficiencies of up to 70%, and is particularly suited for geothermal applications.

House, Palmer A. (Walnut Creek, CA)

1984-01-01T23:59:59.000Z

242

Measuring axial pump thrust  

DOE Patents [OSTI]

An apparatus for measuring the hydraulic axial thrust of a pump under operation conditions is disclosed. The axial thrust is determined by forcing the rotating impeller off of an associated thrust bearing by use of an elongate rod extending coaxially with the pump shaft. The elongate rod contacts an impeller retainer bolt where a bearing is provided. Suitable measuring devices measure when the rod moves to force the impeller off of the associated thrust bearing and the axial force exerted on the rod at that time. The elongate rod is preferably provided in a housing with a heat dissipation mechanism whereby the hot fluid does not affect the measuring devices.

Suchoza, Bernard P. (McMurray, PA); Becse, Imre (Washington, PA)

1988-01-01T23:59:59.000Z

243

Acoustical heat pumping engine  

DOE Patents [OSTI]

The disclosure is directed to an acoustical heat pumping engine without moving seals. A tubular housing holds a compressible fluid capable of supporting an acoustical standing wave. An acoustical driver is disposed at one end of the housing and the other end is capped. A second thermodynamic medium is disposed in the housing near to but spaced from the capped end. Heat is pumped along the second thermodynamic medium toward the capped end as a consequence both of the pressure oscillation due to the driver and imperfect thermal contact between the fluid and the second thermodynamic medium.

Wheatley, John C. (Los Alamos, NM); Swift, Gregory W. (Los Alamos, NM); Migliori, Albert (Santa Fe, NM)

1983-08-16T23:59:59.000Z

244

MIXED PHASE COMPRESSION HIGH EFFICIENCY HEAT PUMP.  

E-Print Network [OSTI]

??The objective of this thesis is the design and realization of a higher efficiency air source heat pump. The improved pump???s operating cost must rival… (more)

Chan, WenYen

2014-01-01T23:59:59.000Z

245

Indexes of pumps for oil field pumping units  

SciTech Connect (OSTI)

As reported previously, a series of oil field pumping units has been developed with power outputs of 125, 250, 500, and 1000 kW, designed for injecting working fluids in cementing operations in oil and gas wells, hydraulic fracturing of formations, washing out sand plugs, and other production operations. The units are designed for the use of three-plunger pumps with individual power outputs of 125 or 500 kW. In the 250- and 1000-kW units, two such pumps are used. The 1000-kW pumping unit serves mainly for deep-penetration hydraulic fracturing of formations, and also for fracturing deep formations. The hydraulic fracturing process does not require the use of units with two pumps; this has been demonstrated by experience, both here and in other countries. All units intended for use in hydraulic fracturing are built with a single pump, transmission, and drive. Pumping units for well cementing must have two pumps that will give a high delivery rate. At the start of the operation, a single pump can be used to feed water into the cement mixer, with the second pump used to transfer the cement slurry to the well. Then both pumps are connected to the slurry injection line. The operation of these pumps is described.

Ibragimov, E.S.

1995-07-01T23:59:59.000Z

246

Explosively pumped laser light  

DOE Patents [OSTI]

A single shot laser pumped by detonation of an explosive in a shell casing. The shock wave from detonation of the explosive causes a rare gas to luminesce. The high intensity light from the gas enters a lasing medium, which thereafter outputs a pulse of laser light to disable optical sensors and personnel.

Piltch, Martin S. (Los Alamos, NM); Michelotti, Roy A. (Los Alamos, NM)

1991-01-01T23:59:59.000Z

247

Shrouded inducer pump  

DOE Patents [OSTI]

An improvement in a pump is described including a shrouded inducer, the improvement comprising first and second sealing means which cooperate with a first vortex cell and a series of secondary vortex cells to remove any tangential velocity components from the recirculation flow. 3 figs.

Meng, S.Y.

1989-08-08T23:59:59.000Z

248

Review of Pump as Turbine (PAT) for Micro-Hydropower  

E-Print Network [OSTI]

Abstract — Micro-hydropower projects are the excellent alternative for electricity generation in remote areas. These projects can be installed on small streams, rivers, and channels without any recognizable effect on environment. The only problem in micro-hydro projects is the high cost of turbine, for which Pump as Turbine (PAT) is a successful solution. An objective of the present study is to review the selection criteria of PAT for various hydropower sites having different potential. Since no general model has been developed which can be used to calculate the conversion factors for PAT, so this paper focuses on the research that have been carried out in this field. The limitations of the various available models and other selection criteria have also been discussed in this paper.

Tarang Agarwal

249

Geothermal Heat Pump Grant Program  

Broader source: Energy.gov [DOE]

The Maryland Energy Administration (MEA) offers rebates of $3,000 for residential geothermal heat pump systems and up to $4,500 for non-residential geothermal heat pump systems. The residential...

250

Heat Pumps - Theory and Applications  

E-Print Network [OSTI]

compressors (heat pumps) with actual applications in Monsanto. Guidelines for possible application areas are drawn from the analysis, and conclusions are drawn both about the usefulness of exergy analysis and about the heat pump application areas....

Altin, M.

1982-01-01T23:59:59.000Z

251

Fuel pumping system and method  

SciTech Connect (OSTI)

A fuel pumping system that includes a pump drive is provided. A first pumping element is operatively connected to the pump drive and is operable to generate a first flow of pressurized fuel. A second pumping element is operatively connected to the pump drive and is operable to generate a second flow of pressurized fuel. A first solenoid is operatively connected to the first pumping element and is operable to vary at least one of a fuel pressure and a fuel flow rate of the first flow of pressurized fuel. A second solenoid is operatively connected to the second pumping element and is operable to vary at least one of a fuel pressure and a fuel flow rate of the second flow of pressurized fuel.

Shafer, Scott F. (Morton, IL); Wang, Lifeng (Normal, IL) ,

2006-12-19T23:59:59.000Z

252

Fuel Pumping System And Method  

DOE Patents [OSTI]

A fuel pumping system that includes a pump drive is provided. A first pumping element is operatively connected to the pump drive and is operable to generate a first flow of pressurized fuel. A second pumping element is operatively connected to the pump drive and is operable to generate a second flow of pressurized fuel. A first solenoid is operatively connected to the first pumping element and is operable to vary at least one of a fuel pressure and a fuel flow rate of the first flow of pressurized fuel. A second solenoid is operatively connected to the second pumping element and is operable to vary at least one of a fuel pressure and a fuel flow rate of the second flow of pressurized fuel.

Shafer, Scott F. (Morton, IL); Wang, Lifeng (Normal, IL)

2005-12-13T23:59:59.000Z

253

Flow assurance and multiphase pumping  

E-Print Network [OSTI]

??????????????????????????????????? 50 Modern Production Engineering?????????????????????????????. 50 Artificial Lift???????????????????????????????????????? 52 Multiphase Pumping???????????????????????????????????. 52 Conventional Production System????????????????????????????? 53... Modern Artificial Lift???????????????????????????????????. 54 Multiphase Production System?????????????????????????????? 55 Tieback Distance????????????????????????????????????? 57 Multiphase Pump Types?????????????????????????????????. 59 Positive...

Nikhar, Hemant G.

2009-05-15T23:59:59.000Z

254

A PV Powered BWRO Desalination Installation with Energy Recovery and Hydro-Pneumatic Energy Storage:.  

E-Print Network [OSTI]

??This MSc. Thesis project was performed at the Sanitary Engineering Department of the TU Delft as part of the Sustainable Energy Technology program. It is… (more)

Romero, R.G.C.

2013-01-01T23:59:59.000Z

255

Infusion Pump Informatics IMPACT STATEMENT  

E-Print Network [OSTI]

Infusion Pump Informatics NEED IMPACT STATEMENT INITIATIVE Working with Purdue's Rosen Center for Advanced Computing, RCHE developed the Infusion Pump Informatics (IPI) System. IPI member hospitals upload their infusion pump alert data to the system each month. The system is web-based and highly interactive. Drawing

Ginzel, Matthew

256

A Development Path to the Efficient and Cost-Effective Bulk Storage of Electrical Energy  

SciTech Connect (OSTI)

Efficient and cost-effective means for storing electrical energy is becoming an increasing need in our electricity-oriented society. For example, for electric utilities an emerging need is for distributed storage systems, that is, energy storage at substations, at solar or wind-power sites, or for load-leveling at the site of major consumers of their electricity. One of the important consequences of distributed storage for the utilities would be the reduction in transmission losses that would result from having a local source of load-leveling power. For applications such as these there are three criteria that must be satisfied by any new system that is developed to meet such needs. These criteria are: (1) high 'turn-around' efficiency, that is, high efficiency of both storing and recovering the stored energy in electrical form, (2) long service life (tens of years), with low maintenance requirements, and, (3) acceptably low capital cost. An additional requirement for these particular applications is that the system should have low enough standby losses to permit operation on a diurnal cycle, that is, storing the energy during a portion of a given day (say during sunlight hours) followed several hours later by its use during night-time hours. One answer to the spectrum of energy storage needs just outlined is the 'electromechanical battery'. The E-M battery, under development for several years at the Laboratory and elsewhere in the world, has the potential to solve the above energy storage problems in a manner superior to the electro-chemical battery in the important attributes of energy recovery efficiency, cycle lifetime, and amortized capital cost. An electromechanical battery is an energy storage module consisting of a high-speed rotor, fabricated from fiber composite, and having an integrally mounted generator/motor. The rotor operates at high speed, in vacuo, inside of a hermetically sealed enclosure, supported by a 'magnetic bearing', that is, a bearing that uses magnetic forces to support the rotor against gravity. Magnetic bearings are a virtual necessity for the E-M battery in order to achieve long service life, and to minimize frictional losses so that the battery does not lose its charge (run down) too rapidly. These considerations mitigate against the use of conventional mechanical bearings in the E-M battery for most applications. The Laboratory has pioneered the development of a new form of magnetic bearing to meet the special requirements of the E-M battery: the 'ambient-temperature passive magnetic bearing'. Simpler, and potentially much less expensive than the existing 'active' magnetic bearings (ones requiring electronic amplifiers and feedback circuits for their operation) development of the ambient-temperature passive magnetic bearing represents a technological breakthrough. Beyond its use in the E-M battery, the ambient-temperature magnetic bearing could have important applications in replacing conventional lubricated mechanical bearings in electrical machinery. Here the gains would be two-fold: reduced frictional losses, leading to higher motor efficiency, and, of equal importance, the elimination of the need for lubricants and for routine replacement of the bearings owing to mechanical wear. Thus an added benefit from a vigorous pursuit of our electromechanical battery concepts could be its impact on many other areas of industry where rotating machinery in need of improved bearings is involved. If perfected, passive magnetic bearings would seem to represent an almost ideal replacement for the mechanical bearings in many types of industrial electrical machinery. Returning to the issued of energy storage, the E-M battery itself has much to contribute in the area of improving the efficiency of stationary energy storage systems. For example, many electrical utilities utilize 'pumped hydro' energy storage systems as a means of improving the utilization of their 'base-load' power plants. That is, electrical energy is stored during off-peak hours for delivery at times of peak usage. These pumped hydro sys

Post, R F

2009-09-24T23:59:59.000Z

257

AQUIFER THERMAL ENERGY STORAGE  

E-Print Network [OSTI]

using aquifers for thermal energy storage. Problems outlinedmatical Modeling of Thermal Energy Storage in Aquifers,"ings of Aquifer Thermal Energy Storage Workshop, Lawrence

Tsang, C.-F.

2011-01-01T23:59:59.000Z

258

AQUIFER THERMAL ENERGY STORAGE  

E-Print Network [OSTI]

aquifers for thermal energy storage. Problems outlined aboveModeling of Thermal Energy Storage in Aquifers," Proceed-ings of Aquifer Thermal Energy Storage Workshop, Lawrence

Tsang, C.-F.

2011-01-01T23:59:59.000Z

259

SUPERCONDUCTING MAGNETIC ENERGY STORAGE  

E-Print Network [OSTI]

Superconducting 30-MJ Energy Storage Coil", Proc. 19 80 ASC,Superconducting Magnetic Energy Storage Plant", IEEE Trans.SlIperconducting Magnetic Energy Storage Unit", in Advances

Hassenzahl, W.

2011-01-01T23:59:59.000Z

260

AQUIFER THERMAL ENERGY STORAGE  

E-Print Network [OSTI]

using aquifers for thermal energy storage. Problems outlinedmatical Modeling of Thermal Energy Storage in Aquifers,"Proceed- ings of Aquifer Thermal Energy Storage Workshop,

Tsang, C.-F.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydro pumped storage" 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

Improving pumping system efficiency at coal plants  

SciTech Connect (OSTI)

The industry must employ ultramodern technologies when building or upgrading power plant pumping systems thereby using fuels more efficiently. The article discusses the uses and efficiencies of positive displacement pumps, centrifugal pumps and multiple screw pumps. 1 ref., 4 figs.

Livoti, W.C.; McCandless, S.; Poltorak, R. [Baldor Electric Co. (United States)

2009-03-15T23:59:59.000Z

262

Industrial Heat Pumps: Where and When  

E-Print Network [OSTI]

pump analysis. INDUSTRIAL HEAT PUMPS: WHAT NEXT? There is definitely a need to develop heat pump systems with higher delivery temperatures. Chemical heat pumps (based on two-step endothermic/exothermic reactions) seem promising in this regard...

Ranade, S. M.; Chao, Y. T.

263

PHNOMNES DITS HYDRO-LECTRIQUES ET HYDROMAGNTIQUES; PAR M. C.-A. BJERKNES (1),  

E-Print Network [OSTI]

509 PH�NOM�NES DITS HYDRO-�LECTRIQUES ET HYDROMAGN�TIQUES; PAR M. C.-A. BJERKNES (1), Professeur à corps hydro- électrisés s'attirent ou se repoussent, suivant que leurs vibrations sont concordantes ou- minuent en même temps). Un hydro-aimant, formé ou bien d'une splzère oscillante ou de deux pulsateurs

Paris-Sud XI, Université de

264

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

265

Select an Energy-Efficient Centrifugal Pump  

SciTech Connect (OSTI)

BestPractices Program tip sheet discussing pumping system efficiency by selecting an energy-efficient centrifugal pump.

Not Available

2005-10-01T23:59:59.000Z

266

North Village Ground Source Heat Pumps  

Broader source: Energy.gov [DOE]

Overview: Installation of Ground Source Heat Pumps. Replacement of Aging Heat Pumps. Alignment with Furmans Sustainability Goals.

267

An experimental study of improvement of a micro hydro turbine performance.  

E-Print Network [OSTI]

??The thesis includes a literature survey of small hydraulic turbines, incorporating a historical review. The possible role of "micro hydros" in generating power in various… (more)

Yassi, Yousef

1999-01-01T23:59:59.000Z

268

Variable speed drive as an alternative solution for a micro-hydro power plant.  

E-Print Network [OSTI]

?? This diploma work is mainly focused on developing the control strategy for avariable speed drive as an alternative solution to a micro-hydro power plant.… (more)

Akhtar, Malik Usman

2012-01-01T23:59:59.000Z

269

SHINE Vacuum Pump Test Verification  

SciTech Connect (OSTI)

Normetex pumps used world-wide for tritium service are no longer available. DOE and other researchers worldwide have spent significant funds characterizing this pump. Identification of alternate pumps is required for performance and compatibility with tritium gas. Many of the pumps that could be used to meet the functional performance requirements (e.g. pressure and flow conditions) of the Normetex pump have features that include the use of polymers or oils and greases that are not directly compatible with tritium service. This study assembles a test system to determine the flow characteristics for candidate alternate pumps. These tests are critical to the movement of tritium through the SHINE Tritium Purification System (TPS). The purpose of the pump testing is two-fold: (1) obtain baseline vacuum pump characteristics for an alternate (i.e. ''Normetex replacement'') pump intended for use in tritium service; and (2) verify that low pressure hydrogen gas can be transported over distances up to 300 feet by the candidate pumps. Flow rates and nominal system pressures have been identified for the SHINE Mo-99 production process Tritium Purification System (TPS). To minimize the line sizes for the transfer of low pressure tritium from the Neutron Driver Accelerator System (NDAS) to the primary processing systems in the TPS, a ''booster'' pump has been located near the accelerator in the design. A series of pump tests were performed at various configurations using hydrogen gas (no tritium) to ensure that this concept is practical and maintains adequate flow rates and required pressures. This report summarizes the results of the tests that have been performed using various pump configurations. The current design of the Tritium Purification System requires the ''booster'' pump to discharge to or to be backed by another vacuum pump. Since Normetex pumps are no longer manufactured, a commercially available Edwards scroll pump will be used to back the booster pump. In this case the ''booster pump'' is an Adixen Molecular Drag Pump (MDP 5011) and the backing pump is an Edwards (nXDS15iC) scroll pump. Various configurations of the two pumps and associated lengths of 3/4 inch tubing (0 feet to 300 feet) were used in combination with hydrogen and nitrogen flow rates ranging from 25-400 standard cubic centimeters per minute (sccm) to determine whether the proposed pump configuration meets the design criteria for SHINE. The results of this study indicate that even under the most severe conditions (300 feet of tubing and 400 sccm flow rate) the Adixen 5011 MDP can serve as a booster pump to transport gases from the accelerator (NDAS) to the TPS. The Target Gas Receiving System pump (Edwards nXDS15iC) located approximately 300 feet from the accelerator can effectively back the Adixen MDP. The molecular drag pump was able to maintain its full rotational speed even when the flow rate was 400 sccm hydrogen or nitrogen and 300 feet of tubing was installed between the drag pump and the Edwards scroll pump. In addition to maintaining adequate rotation, the pressure in the system was maintained below the target pressure of 30 torr for all flow rates, lengths of tubing, and process gases. This configuration is therefore adequate to meet the SHINE design requirements in terms of flow and pressure.

Morgan, Gregg A; Peters, Brent

2013-09-30T23:59:59.000Z

270

Development of a coupled thermo-hydro-mechanical model in discontinuous media for carbon sequestration  

SciTech Connect (OSTI)

Geomechanical alteration of porous media is generally ignored for most shallow subsurface applications, whereas CO2 injection, migration, and trapping in deep saline aquifers will be controlled by coupled multifluid flow, energy transfer, and geomechanical processes. The accurate assessment of the risks associated with potential leakage of injected CO2 and the design of effective injection systems requires that we represent these coupled processes within numerical simulators. The objectives of this study were to develop a coupled thermal-hydro-mechanical model into a single software, and to examine the coupling of thermal, hydrological, and geomechanical processes for simulation of CO2 injection into the subsurface for carbon sequestration. A numerical model is developed to couple nonisothermal multiphase hydrological and geomechanical processes for prediction of multiple interconnected processes for carbon sequestration in deep saline aquifers. The geomechanics model was based on Rigid Body-Spring Model (RBSM), one of the discrete methods to model discontinuous rock system. Poisson’s effect that was often ignored by RBSM was considered in the model. The simulation of large-scale and long-term coupled processes in carbon capture and storage projects requires large memory and computational performance. Global Array Toolkit was used to build the model to permit the high performance simulations of the coupled processes. The model was used to simulate a case study with several scenarios to demonstrate the impacts of considering coupled processes and Poisson’s effect for the prediction of CO2 sequestration.

Fang, Yilin; Nguyen, Ba Nghiep; Carroll, Kenneth C.; Xu, Zhijie; Yabusaki, Steven B.; Scheibe, Timothy D.; Bonneville, Alain

2013-09-12T23:59:59.000Z

271

Multiple source heat pump  

DOE Patents [OSTI]

A heat pump apparatus for conditioning a fluid characterized by a fluid handler and path for circulating a fluid in heat exchange relationship with a refrigerant fluid, at least three refrigerant heat exchangers, one for effecting heat exchange with the fluid, a second for effecting heat exchange with a heat exchange fluid, and a third for effecting heat exchange with ambient air; a compressor for compressing the refrigerant; at least one throttling valve connected at the inlet side of a heat exchanger in which liquid refrigerant is vaporized; a refrigerant circuit; refrigerant; a source of heat exchange fluid; heat exchange fluid circuit and pump for circulating the heat exchange fluid in heat exchange relationship with the refrigerant; and valves or switches for selecting the heat exchangers and directional flow of refrigerant therethrough for selecting a particular mode of operation. Also disclosed are a variety of embodiments, modes of operation, and schematics therefor.

Ecker, Amir L. (Duncanville, TX)

1983-01-01T23:59:59.000Z

272

Fusion reactor pumped laser  

DOE Patents [OSTI]

A nuclear pumped laser capable of producing long pulses of very high power laser radiation is provided. A toroidal fusion reactor provides energetic neutrons which are slowed down by a moderator. The moderated neutrons are converted to energetic particles capable of pumping a lasing medium. The lasing medium is housed in an annular cell surrounding the reactor. The cell includes an annular reflecting mirror at the bottom and an annular output window at the top. A neutron reflector is disposed around the cell to reflect escaping neutrons back into the cell. The laser radiation from the annular window is focused onto a beam compactor which generates a single coherent output laser beam. 10 figs.

Jassby, D.L.

1987-09-04T23:59:59.000Z

273

Water displacement mercury pump  

DOE Patents [OSTI]

A water displacement mercury pump has a fluid inlet conduit and diffuser, a valve, a pressure cannister, and a fluid outlet conduit. The valve has a valve head which seats in an opening in the cannister. The entire assembly is readily insertable into a process vessel which produces mercury as a product. As the mercury settles, it flows into the opening in the cannister displacing lighter material. When the valve is in a closed position, the pressure cannister is sealed except for the fluid inlet conduit and the fluid outlet conduit. Introduction of a lighter fluid into the cannister will act to displace a heavier fluid from the cannister via the fluid outlet conduit. The entire pump assembly penetrates only a top wall of the process vessel, and not the sides or the bottom wall of the process vessel. This insures a leak-proof environment and is especially suitable for processing of hazardous materials.

Nielsen, Marshall G. (Woodside, CA)

1985-01-01T23:59:59.000Z

274

Water displacement mercury pump  

DOE Patents [OSTI]

A water displacement mercury pump has a fluid inlet conduit and diffuser, a valve, a pressure cannister, and a fluid outlet conduit. The valve has a valve head which seats in an opening in the cannister. The entire assembly is readily insertable into a process vessel which produces mercury as a product. As the mercury settles, it flows into the opening in the cannister displacing lighter material. When the valve is in a closed position, the pressure cannister is sealed except for the fluid inlet conduit and the fluid outlet conduit. Introduction of a lighter fluid into the cannister will act to displace a heavier fluid from the cannister via the fluid outlet conduit. The entire pump assembly penetrates only a top wall of the process vessel, and not the sides or the bottom wall of the process vessel. This insures a leak-proof environment and is especially suitable for processing of hazardous materials.

Nielsen, M.G.

1984-04-20T23:59:59.000Z

275

AQUIFER THERMAL ENERGY STORAGE  

E-Print Network [OSTI]

of Discharge Using Ground- Water Storage," Transactions1971. "Storage of Solar Energy in a Sandy-Gravel Ground,"

Tsang, C.-F.

2011-01-01T23:59:59.000Z

276

Parametric studies and optimisation of pumped thermal electricity storage  

E-Print Network [OSTI]

(T2 and T4) are fixed, 38 instead of fixing T1 and T3, then variation of the pressure ratio gives trends similar to those observed for gas 39 turbine cycles for which there are optimum pressure ratios, as shown in Fig. 4(b). The optimum pressure 40... t , where 28 Dh is the cylinder mean hydraulic diameter and ?t is the mean thermal diffusivity of the gas. Based on the 29 dimensions and conditions listed in Tables 2 and 3, the Peclet number for the hot cylinder is 34 000, 30 suggesting an efficiency loss...

McTigue, Joshua; White, Alexander; Markides, Christos N.

2014-09-11T23:59:59.000Z

277

Pumped Storage Hydropower (Detailed Analysis to Demonstrate Value)-Modeling  

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 | Department ofT ib l L dDepartment of Energy 0Commercial andStrength

278

THE WIDE-AREA ENERGY STORAGE AND MANAGEMENT SYSTEM PHASE II Final Report - Flywheel Field Tests  

SciTech Connect (OSTI)

This research was conducted by Pacific Northwest National Laboratory (PNNL) operated for the U.S. department of Energy (DOE) by Battelle Memorial Institute for Bonneville Power Administration (BPA), California Institute for Energy and Environment (CIEE) and California Energy Commission (CEC). A wide-area energy management system (WAEMS) is a centralized control system that operates energy storage devices (ESDs) located in different places to provide energy and ancillary services that can be shared among balancing authorities (BAs). The goal of this research is to conduct flywheel field tests, investigate the technical characteristics and economics of combined hydro-flywheel regulation services that can be shared between Bonneville Power Administration (BPA) and California Independent System Operator (CAISO) controlled areas. This report is the second interim technical report for Phase II of the WAEMS project. This report presents: 1) the methodology of sharing regulation service between balancing authorities, 2) the algorithm to allocate the regulation signal between the flywheel and hydro power plant to minimize the wear-and-tear of the hydro power plants, 3) field results of the hydro-flywheel regulation service (conducted by the Beacon Power), and 4) the performance metrics and economic analysis of the combined hydro-flywheel regulation service.

Lu, Ning; Makarov, Yuri V.; Weimar, Mark R.; Rudolph, Frank; Murthy, Shashikala; Arseneaux, Jim; Loutan, Clyde; Chowdhury, S.

2010-08-31T23:59:59.000Z

279

Pion correlations in hydro-inspired models with resonances  

E-Print Network [OSTI]

The effects of the freeze-out hypersurface and resonance decays on the pion correlation functions in relativistic heavy-ion collisions are studied with help of the hydro-inspired models with single freeze-out. The heavy-ion Monte-Carlo generator THERMINATOR is used to generate hadronic events describing production of particles from a thermalized and expanding source. We find that the short-lived resonances increase the pionic HBT radii by about 1 fm. We also find that the pion HBT data from RHIC are fully compatible with the single freeze-out scenario provided a special choice of the freeze-out hypersurface is made.

W. Florkowski; W. Broniowski; A. Kisiel; J. Pluta

2006-09-19T23:59:59.000Z

280

A new multidimensional AMR Hydro+Gravity Cosmological code  

E-Print Network [OSTI]

A new cosmological multidimensional hydrodynamic and N-body code based on an Adaptive Mesh Refinement scheme is described and tested. The hydro part is based on modern high-resolution shock-capturing techniques, whereas N-body approach is based on the Particle Mesh method. The code has been specifically designed for cosmological applications. Tests including shocks, strong gradients, and gravity have been considered. A cosmological test based on Santa Barbara cluster is also presented. The usefulness of the code is discussed. In particular, this powerful tool is expected to be appropriate to describe the evolution of the hot gas component located inside asymmetric cosmological structures.

Vicent Quilis

2004-05-20T23:59:59.000Z

Note: This page contains sample records for the topic "hydro pumped storage" 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

New England Hydro-Trans Corp | 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:46 -Energieprojekte3InformationofServicesNeuCo620572°,York:Hydro-Trans Corp Jump

282

OpenHydro Group Limited | 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 ResourcesLoading map...(UtilityCounty, Michigan: EnergyOpenBarter Jump to:sourceStub Jump to:OpenHydro

283

MHK Technologies/HydroVenturi | 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 JumpIncMAKGalway Bay IE <AirWECHelix < MHK TechnologiesHydroVenturi

284

Heat recovery and thermal storage : a study of the Massachusetts State Transportation Building  

E-Print Network [OSTI]

A study of the energy system at the Massachusetts State Transportation Building was conducted. This innovative energy system utilizes internal-source heat pumps and a water thermal storage system to provide building heating ...

Bjorklund, Abbe Ellen

1986-01-01T23:59:59.000Z

285

Formulaire de demande de bourse institutionnelle d'Hydro-Qubec Bourse de recrutement* OU Bourse de persvrance**  

E-Print Network [OSTI]

Annexe B Formulaire de demande de bourse institutionnelle d'Hydro-Québec Bourse de recrutement* OU'étudiant : Montant de la bourse institutionnelle d'Hydro-Québec : 5 000 $ Montant de l

Vellend, Mark

286

Intelligent Voltage and Reactive Power Control of Mini-Hydro Power Stations for Maximisation of Real  

E-Print Network [OSTI]

1 Intelligent Voltage and Reactive Power Control of Mini-Hydro Power Stations for Maximisation Control (APFC) modes. The ability to export active and reactive power from mini-hydro power generators electrical power generation from renewable resources. Additionally, the potential early retiral of central

Harrison, Gareth

287

Optimization and Control of a Hydro-Mechanical Transmission based Hybrid Hydraulic Passenger Vehicle  

E-Print Network [OSTI]

Optimization and Control of a Hydro-Mechanical Transmission based Hybrid Hydraulic Passenger Vehicle Perry Y. Li Felicitas Mensing Center for Compact and Efficient Fluid Power, University of Minnesota, Minneapolis, USA ABSTRACT Hydro-mechanical transmission (HMT) based hybrid hydraulic vehicle

Li, Perry Y.

288

ANALYSIS AND CONTROL DESIGN OF A HYDRO-MECHANICAL HYDRAULIC HYBRID PASSENGER VEHICLE  

E-Print Network [OSTI]

for optimal engine management. The hydro-mechanical drive train splits the engine power through two pathsANALYSIS AND CONTROL DESIGN OF A HYDRO-MECHANICAL HYDRAULIC HYBRID PASSENGER VEHICLE Teck Ping, Sim Minneapolis, Minnesota 55455 Email: tpsim@me.umn.edu Perry Y. Li Center for Compact and Efficient Fluid Power

Li, Perry Y.

289

MOMENT-FREQUENCY DISTRIBUTION USED AS A CONSTRAINT FOR HYDRO-MECHANICAL  

E-Print Network [OSTI]

MOMENT-FREQUENCY DISTRIBUTION USED AS A CONSTRAINT FOR HYDRO-MECHANICAL MODELLING IN FRACTURE fractured rocks for EGS purposes is accompanied by microseismicity. From our numerical hydro are partly liberated and the resulting small sliding movements give rise to low frequency stress waves

Paris-Sud XI, Université de

290

A Study of the Hydro-Mechanical Behaviour of Compacted Crushed Argillite  

E-Print Network [OSTI]

1 A Study of the Hydro-Mechanical Behaviour of Compacted Crushed Argillite C.S. Tang a, b , A and the microstruc- ture on the hydro-mechanical behaviour of the compacted crushed argillite have been in compression only reduces the inter-aggregate porosity in the stress range considered; (iii) the micro

Paris-Sud XI, Université de

291

Micro Hydro Power: Promising Solution for Off-grid Renewable Energy Source  

E-Print Network [OSTI]

Abstract — Micro hydro current power plant studies to date have aimed at finding feasible solution of its realistic implementation to the different parts of the world.This paper will briefly review the micro hydro current power plant?s prospect as a possible off grid source of renewable energy.

Md Tanbhir Hoq; Nawshad U. A; Md. N. Islam; Md. K. Syfullah; Raiyan Rahman

292

Pump Life Cycle Costs: A Guide to LCC Analysis for Pumping Systems...  

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

Life Cycle Costs: A Guide to LCC Analysis for Pumping Systems - Executive Summary Pump Life Cycle Costs: A Guide to LCC Analysis for Pumping Systems - Executive Summary This...

293

Hydro-kinetic approach to relativistic heavy ion collisions  

E-Print Network [OSTI]

We develop a combined hydro-kinetic approach which incorporates a hydrodynamical expansion of the systems formed in \\textit{A}+\\textit{A} collisions and their dynamical decoupling described by escape probabilities. The method corresponds to a generalized relaxation time ($\\tau_{\\text{rel}}$) approximation for the Boltzmann equation applied to inhomogeneous expanding systems; at small $\\tau_{\\text{rel}}$ it also allows one to catch the viscous effects in hadronic component - hadron-resonance gas. We demonstrate how the approximation of sudden freeze-out can be obtained within this dynamical picture of continuous emission and find that hypersurfaces, corresponding to a sharp freeze-out limit, are momentum dependent. The pion $m_{T}$ spectra are computed in the developed hydro-kinetic model, and compared with those obtained from ideal hydrodynamics with the Cooper-Frye isothermal prescription. Our results indicate that there does not exist a universal freeze-out temperature for pions with different momenta, and support an earlier decoupling of higher $p_{T}$ particles. By performing numerical simulations for various initial conditions and equations of state we identify several characteristic features of the bulk QCD matter evolution preferred in view of the current analysis of heavy ion collisions at RHIC energies.

S. V. Akkelin; Y. Hama; Iu. A. Karpenko; Yu. M. Sinyukov

2008-08-28T23:59:59.000Z

294

Variable Frequency Pump Drives  

E-Print Network [OSTI]

-frequency electric motor drive. What is happenin9 with variable frequency driven pun,ps is a classical illustration that evolution in technical products takes place not only because of changes in the processes served by these products, or because of innovations...-pole 3550 rpm squirrel caqe induction motor became available in the early 1930s that high pressure pumps operating at that speed could be buil t. And now, in the 1980s, the development of the solid-state, variable frequency electric motor drive...

Karassik, I. J.; Petraccaro, L. L.; McGuire, J. T.

295

Absorption heat pump system  

DOE Patents [OSTI]

An improvement in an absorption heat pump cycle is obtained by adding adiabatic absorption and desorption steps to the absorber and desorber of the system. The adiabatic processes make it possible to obtain the highest temperature in the absorber before any heat is removed from it and the lowest temperature in the desorber before heat is added to it, allowing for efficient utilization of the thermodynamic availability of the heat supply stream. The improved system can operate with a larger difference between high and low working fluid concentrations, less circulation losses, and more efficient heat exchange than a conventional system.

Grossman, Gershon (Oak Ridge, TN); Perez-Blanco, Horacio (Knoxville, TN)

1984-01-01T23:59:59.000Z

296

Electromagnetic pump stator coil  

DOE Patents [OSTI]

An electrical stator coil for an electromagnetic pump includes a continuous conductor strip having first and second terminals at opposite ends thereof and an intermediate section disposed therebetween. The strip is configured in first and second coil halves, with the first coil half including a plurality of windings extending from the first terminal to the intermediate section, and the second coil half including a plurality of windings extending from the second terminal to the intermediate section. The first and second coil halves are disposed coaxially, and the first and second terminals are disposed radially inwardly therefrom with the intermediate section being disposed radially outwardly therefrom. 9 figs.

Fanning, A.W.; Dahl, L.R.

1996-06-25T23:59:59.000Z

297

Irrigation Pump Testing  

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 ProposedUsingFunInfrared LandResponsesIon/SurfacePump-Testing Sign In About | Careers |

298

Characterization and assessment of novel bulk storage technologies : a study for the DOE Energy Storage Systems program.  

SciTech Connect (OSTI)

This paper reports the results of a high-level study to assess the technological readiness and technical and economic feasibility of 17 novel bulk energy storage technologies. The novel technologies assessed were variations of either pumped storage hydropower (PSH) or compressed air energy storage (CAES). The report also identifies major technological gaps and barriers to the commercialization of each technology. Recommendations as to where future R&D efforts for the various technologies are also provided based on each technology's technological readiness and the expected time to commercialization (short, medium, or long term). The U.S. Department of Energy (DOE) commissioned this assessment of novel concepts in large-scale energy storage to aid in future program planning of its Energy Storage Program. The intent of the study is to determine if any new but still unproven bulk energy storage concepts merit government support to investigate their technical and economic feasibility or to speed their commercialization. The study focuses on compressed air energy storage (CAES) and pumped storage hydropower (PSH). It identifies relevant applications for bulk storage, defines the associated technical requirements, characterizes and assesses the feasibility of the proposed new concepts to address these requirements, identifies gaps and barriers, and recommends the type of government support and research and development (R&D) needed to accelerate the commercialization of these technologies.

Huff, Georgianne; Tong, Nellie (KEMA Consulting, Fairfax, VA); Fioravanti, Richard (KEMA Consulting, Fairfax, VA); Gordon, Paul (Sentech/SRA International, Bethesda, MD); Markel, Larry (Sentech/SRA International, Bethesda, MD); Agrawal, Poonum (Sentech/SRA International, Bethesda, MD); Nourai, Ali (KEMA Consulting, Fairfax, VA)

2011-04-01T23:59:59.000Z

299

Gas storage materials, including hydrogen storage materials  

DOE Patents [OSTI]

A material for the storage and release of gases comprises a plurality of hollow elements, each hollow element comprising a porous wall enclosing an interior cavity, the interior cavity including structures of a solid-state storage material. In particular examples, the storage material is a hydrogen storage material, such as a solid state hydride. An improved method for forming such materials includes the solution diffusion of a storage material solution through a porous wall of a hollow element into an interior cavity.

Mohtadi, Rana F; Wicks, George G; Heung, Leung K; Nakamura, Kenji

2014-11-25T23:59:59.000Z

300

Gas storage materials, including hydrogen storage materials  

DOE Patents [OSTI]

A material for the storage and release of gases comprises a plurality of hollow elements, each hollow element comprising a porous wall enclosing an interior cavity, the interior cavity including structures of a solid-state storage material. In particular examples, the storage material is a hydrogen storage material such as a solid state hydride. An improved method for forming such materials includes the solution diffusion of a storage material solution through a porous wall of a hollow element into an interior cavity.

Mohtadi, Rana F; Wicks, George G; Heung, Leung K; Nakamura, Kenji

2013-02-19T23:59:59.000Z

Note: This page contains sample records for the topic "hydro pumped storage" 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

A thermo-hydro-mechanical coupled model in local thermal non-equilibrium for fractured HDR reservoir  

E-Print Network [OSTI]

A thermo-hydro-mechanical coupled model in local thermal non-equilibrium for fractured HDR of New South Wales, Sydney 2052, Australia. Abstract The constitutive thermo-hydro-mechanical equations is next applied to simulate circulation tests at the Fenton Hill HDR reservoir. The finer thermo-hydro

Boyer, Edmond

302

Do phreatomagmatic eruptions at Ubehebe Crater (Death Valley, California) relate to a wetter than present hydro-climate?  

E-Print Network [OSTI]

present hydro-climate? Peri Sasnett,1,2 Brent M. Goehring,1,2,3 Nicholas Christie-Blick,1,2 and Joerg M the idea that volcanism may relate to a wetter than present hydro-climate. Twelve of the fifteen ages that eruptive timing relates to a wetter hydro-climate. Instead, the presence of a relatively shallow modern

Christie-Blick, Nicholas

303

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1002/, Hydro-acoustic and tsunami waves generated by the1  

E-Print Network [OSTI]

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1002/, Hydro-acoustic and tsunami waves TSUNAMI Abstract. Detection of low-frequency hydro-acoustic waves as precur-4 sor components model gave us the opportunity to study13 the hydro-acoustic wave propagation in a large-scale domain

Kirby, James T.

304

Phenomene couple thermo-hydro-mecanique des roches fracturees: Recents developpements des methodes de modelisation et tests de validation  

E-Print Network [OSTI]

95-54 Phenomene couple thermo-hydro-mecanique des roches fracturees: Recents developpements des methodes de modelisation et tests de validation Coupled thermo-hydro-mechanical phenomena in fractured fracture.La deuxiemequestion concemela modelisation des phenomenes couples thenno-hydro-mecaniques. L

Paris-Sud XI, Université de

305

February 16-18, 2011 / Biel (Bienne), Switzerland Comparison between accelerated thermo-hydro aged wood and naturally  

E-Print Network [OSTI]

Bois 3 DEISTAF ­ University of Florence, Italy Key words: accelerated aging, micro-mechanics, thermo-hydroFebruary 16-18, 2011 / Biel (Bienne), Switzerland Comparison between accelerated thermo-hydro aged]. It has been observed that similar degradation can be found in thermo-hydro (TH) treated wood [4]. The aim

Paris-Sud XI, Université de

306

Heat pump apparatus  

DOE Patents [OSTI]

A heat pump apparatus including a compact arrangement of individual tubular reactors containing hydride-dehydride beds in opposite end sections, each pair of beds in each reactor being operable by sequential and coordinated treatment with a plurality of heat transfer fluids in a plurality of processing stages, and first and second valves located adjacent the reactor end sections with rotatable members having multiple ports and associated portions for separating the hydride beds at each of the end sections into groups and for simultaneously directing a plurality of heat transfer fluids to the different groups. As heat is being generated by a group of beds, others are being regenerated so that heat is continuously available for space heating. As each of the processing stages is completed for a hydride bed or group of beds, each valve member is rotated causing the heat transfer fluid for the heat processing stage to be directed to that bed or group of beds. Each of the end sections are arranged to form a closed perimeter and the valve member may be rotated repeatedly about the perimeter to provide a continuous operation. Both valves are driven by a common motor to provide a coordinated treatment of beds in the same reactors. The heat pump apparatus is particularly suitable for the utilization of thermal energy supplied by solar collectors and concentrators but may be used with any source of heat, including a source of low-grade heat.

Nelson, Paul A. (Wheaton, IL); Horowitz, Jeffrey S. (Woodridge, IL)

1983-01-01T23:59:59.000Z

307

Hybrid Photovoltaic/Thermal Systems with a Solar-Assisted Heat Pump  

SciTech Connect (OSTI)

An outline of possibilities for effective use of PV/T collectors with a Solar Assisted Heat Pump is given. A quantitative analysis of the performance and cost of the various configurations as a function of regional climates, using up-to-date results from solar heat pump and PV/T collector studies, will be required for more definitive assessment; and it is recommended that these be undertaken in the PV/T Program. Particular attention should be paid to development of high performance PV/T collectors, matching of heat pump electrical system to PV array and power conditioning characteristics, and optimization of storage options for cost effectiveness and utility impact.

Kush, E.A.

1980-01-01T23:59:59.000Z

308

Utilization of Heat Pump Water Heaters for Load Management  

SciTech Connect (OSTI)

The Energy Conservation Standards for Residential Water Heaters require residential electric storage water heaters with volumes larger than 55 gallons to have an energy factor greater than 2.0 after April 2015. While this standard will significantly increase the energy efficiency of water heaters, large electric storage water heaters that do not use heat pump technologies may no longer be available. Since utilities utilize conventional large-volume electric storage water heaters for thermal storage in demand response programs, there is a concern that the amended standard will significantly limit demand response capacity. To this end, Oak Ridge National Laboratory partnered with the Tennessee Valley Authority to investigate the load management capability of heat pump water heaters that meet or exceed the forthcoming water heater standard. Energy consumption reduction during peak periods was successfully demonstrated, while still meeting other performance criteria. However, to minimize energy consumption, it is important to design load management strategies that consider the home s hourly hot water demand so that the homeowner has sufficient hot water.

Boudreaux, Philip R [ORNL; Jackson, Roderick K [ORNL; Munk, Jeffrey D [ORNL; Gehl, Anthony C [ORNL; Lyne, Christopher T [ORNL

2014-01-01T23:59:59.000Z

309

Solid-State Hydrogen Storage: Storage Capacity,Thermodynamics...  

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

Hydrogen Storage: Storage Capacity,Thermodynamics and Kinetics. Solid-State Hydrogen Storage: Storage Capacity,Thermodynamics and Kinetics. Abstract: Solid-state reversible...

310

LOW COST HEAT PUMP WATER HEATER (HPWH)  

SciTech Connect (OSTI)

Water heating accounts for the second largest portion of residential building energy consumption, after space conditioning. Existing HPWH products are a technical success, with demonstrated energy savings of 50% or more compared with standard electric resistance water heaters. However, current HPWHs available on the market cost an average of $1000 or more, which is too expensive for significant market penetration. What is needed is a method to reduce the first cost of HPWHs, so that the payback period will be reduced from 8 years to a period short enough for the market to accept this technology. A second problem with most existing HPWH products is the reliability issue associated with the pump and water loop needed to circulate cool water from the storage tank to the HPWH condenser. Existing integral HPWHs have the condenser wrapped around the water tank and thus avoid the pump and circulation issues but require a relatively complex and expensive manufacturing process. A more straightforward potentially less costly approach to the integral, single package HPWH design is to insert the condenser directly into the storage tank, or immersed direct heat exchanger (IDX). Initial development of an IDX HPWH met technical performance goals, achieving measured efficiencies or energy factors (EF) in excess of 1.79. In comparison conventional electric water heaters (EWH) have EFs of about 0.9. However, the initial approach required a 2.5" hole on top of the tank for insertion of the condenser - much larger than the standard openings typically provided. Interactions with water heater manufacturers indicated that the non standard hole size would likely lead to increased manufacturing costs (at least initially) and largely eliminate any cost advantage of the IDX approach. Recently we have been evaluating an approach to allow use of a standard tank hole size for insertion of the IDX condenser. Laboratory tests of a prototype have yielded an EF of 2.02.

Mei, Vince C [ORNL; Baxter, Van D [ORNL

2006-01-01T23:59:59.000Z

311

Southern company energy storage study : a study for the DOE energy storage systems program.  

SciTech Connect (OSTI)

This study evaluates the business case for additional bulk electric energy storage in the Southern Company service territory for the year 2020. The model was used to examine how system operations are likely to change as additional storage is added. The storage resources were allowed to provide energy time shift, regulation reserve, and spinning reserve services. Several storage facilities, including pumped hydroelectric systems, flywheels, and bulk-scale batteries, were considered. These scenarios were tested against a range of sensitivities: three different natural gas price assumptions, a 15% decrease in coal-fired generation capacity, and a high renewable penetration (10% of total generation from wind energy). Only in the elevated natural gas price sensitivities did some of the additional bulk-scale storage projects appear justifiable on the basis of projected production cost savings. Enabling existing peak shaving hydroelectric plants to provide regulation and spinning reserve, however, is likely to provide savings that justify the project cost even at anticipated natural gas price levels. Transmission and distribution applications of storage were not examined in this study. Allowing new storage facilities to serve both bulk grid and transmission/distribution-level needs may provide for increased benefit streams, and thus make a stronger business case for additional storage.

Ellison, James; Bhatnagar, Dhruv; Black, Clifton [Southern Company Services, Inc., Birmingham, AL; Jenkins, Kip [Southern Company Services, Inc., Birmingham, AL

2013-03-01T23:59:59.000Z

312

Molten Glass for Thermal Storage: Advanced Molten Glass for Heat Transfer and Thermal Energy Storage  

SciTech Connect (OSTI)

HEATS Project: Halotechnics is developing a high-temperature thermal energy storage system using a new thermal-storage and heat-transfer material: earth-abundant and low-melting-point molten glass. Heat storage materials are critical to the energy storage process. In solar thermal storage systems, heat can be stored in these materials during the day and released at night—when the sun is not out—to drive a turbine and produce electricity. In nuclear storage systems, heat can be stored in these materials at night and released to produce electricity during daytime peak-demand hours. Halotechnics new thermal storage material targets a price that is potentially cheaper than the molten salt used in most commercial solar thermal storage systems today. It is also extremely stable at temperatures up to 1200°C—hundreds of degrees hotter than the highest temperature molten salt can handle. Being able to function at high temperatures will significantly increase the efficiency of turning heat into electricity. Halotechnics is developing a scalable system to pump, heat, store, and discharge the molten glass. The company is leveraging technology used in the modern glass industry, which has decades of experience handling molten glass.

None

2012-01-01T23:59:59.000Z

313

Heat Pump Strategies and Payoffs  

E-Print Network [OSTI]

After evaluating numerous waste heat sources and heat pump designs for energy recovery, we have become aware that a great deal of confusion exists about the economics of heat pumps. The purpose of this article is to present some simple formulas...

Gilbert, J. S.

1982-01-01T23:59:59.000Z

314

Threshold values of autoresonant pumping  

E-Print Network [OSTI]

There exists stable growing solution of primary resonant equation for a autoresonant pumping with decreasing amplitude. The primary term of asymptotics is $O(\\sqrt{t})$ and does not depend on order of the force from some interval. We point to the interval for the amplitude of the pumping for which the growing stable solution exists.

O. M. Kiselev

2013-03-19T23:59:59.000Z

315

Dual source heat pump  

DOE Patents [OSTI]

What is disclosed is a heat pump apparatus for conditioning a fluid characterized by a fluid handler and path for circulating the fluid in heat exchange relationship with a refrigerant fluid; at least two refrigerant heat exchangers, one for effecting heat exchange with the fluid and a second for effecting heat exchange between refrigerant and a heat exchange fluid and the ambient air; a compressor for efficiently compressing the refrigerant; at least one throttling valve for throttling liquid refrigerant; a refrigerant circuit; refrigerant; a source of heat exchange fluid; heat exchange fluid circulating device and heat exchange fluid circuit for circulating the heat exchange fluid in heat exchange relationship with the refrigerant; and valves or switches for selecting the heat exchangers and direction of flow of the refrigerant therethrough for selecting a particular mode of operation. The heat exchange fluid provides energy for defrosting the second heat exchanger when operating in the air source mode and also provides a alternate source of heat.

Ecker, Amir L. (Dallas, TX); Pietsch, Joseph A. (Dallas, TX)

1982-01-01T23:59:59.000Z

316

Two well storage systems for combined heating and airconditioning by groundwater heatpumps in shallow aquifers  

SciTech Connect (OSTI)

The use of soil and ground water as an energy source and heat storage systems for heat pumps in order to conserve energy in heating and air conditioning buildings is discussed. Information is included on heat pump operation and performance, aquifer characteristics, soil and ground water temperatures, and cooling and heating demands. Mathematical models are used to calculate flow and temperature fields in the aquifer. It is concluded that two well storage systems with ground water heat pumps are desirable, particularly in northern climates. (LCL)

Pelka, W.

1980-07-01T23:59:59.000Z

317

Development Requirements for Advanced Industrial Heat Pumps  

E-Print Network [OSTI]

DOE is attempting to advance the use of heat pumps to save energy in industrial processes. The approach has emphasized developing better heat pump technology and transferring that technology to the private sector. DOE requires that heat pump...

Chappell, R. N.; Priebe, S. J.; Bliem, C. J.; Mills, J. I.

318

RESEARCH ARTICLE Lifespan Extension and Increased Pumping  

E-Print Network [OSTI]

RESEARCH ARTICLE Lifespan Extension and Increased Pumping Rate Accompany Pharyngeal Muscle in multiple behavioral defects; slower pharyngeal pumping rate, impaired egg laying, defective motility nfi-1 must be expressed to rescue the pharyngeal pumping defect. Expression of nfi-1 from

Gronostajski, Richard M.

319

Seasonal thermal energy storage  

SciTech Connect (OSTI)

This report describes the following: (1) the US Department of Energy Seasonal Thermal Energy Storage Program, (2) aquifer thermal energy storage technology, (3) alternative STES technology, (4) foreign studies in seasonal thermal energy storage, and (5) economic assessment.

Allen, R.D.; Kannberg, L.D.; Raymond, J.R.

1984-05-01T23:59:59.000Z

320

Development of a Procedure for the Predictive Control Strategy of a Chilled Water Storage System  

E-Print Network [OSTI]

-peak months to minimize demand charges. By optimizing the operation of the building air handling units (AHUs), chilled water pumps, chiller plant and the thermal storage system, the storage tank is better charged while chiller run time is reduced. Both on...

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

2000-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydro pumped storage" 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

Revue. Volume X n x/anne, pages 1 X Comportement thermo-hydro-mcanique  

E-Print Network [OSTI]

Revue. Volume X ­ n° x/année, pages 1 à X Comportement thermo-hydro-mécanique (THM) d'un ouvrage en'évaluer les risques de la dégradation de la pierre dues aux couplages thermo-hydro-mécaniques qui conduisent à'année 2008 par une station météo aérienne située proche du château. Les analyses couplées thermo-hydro

Paris-Sud XI, Université de

322

Optimized flashlamp pumping of disc amplifiers  

SciTech Connect (OSTI)

Disk amplifier design for inertial fusion lasers has evolved with changing fusion-driver requirements from a primary emphasis on gain to a primary emphasis on efficiency. In this paper we compare Shiva and Nova amplifiers to a developmental amplifier (SSA) and show greater than a two-fold improvement in efficiency over past designs under all operating conditions. Experiments to optimize the efficiency of the SSA show that preionization of the flashlamps produces significant benefits and that the packing fraction of lamps is more important than the flashlamp reflector shape. They also show that the optimized flashlamp pulselength and reflector geometry depend on the desired stored energy in the laser medium. We have demonstrated a 7% storage efficiency at a stored fluence per disk of 0.5 J/cm/sup 2/ (stored energy density of 0.06 J/cm/sup 3/) and 4% at 2.0 J/cm/sup 2/ (0.25 J/cm/sup 3/). Comparison of SSA measurements with storage-efficiency calculations show that our flashlamp model accurately predicts the single-pass pumping of disk amplifiers. 24 refs., 22 figs.

Murray, J.E.; Powell, H.T.; Woods, B.W.

1986-01-17T23:59:59.000Z

323

SUPERCONDUCTING MAGNETIC ENERGY STORAGE  

E-Print Network [OSTI]

to MW/40 MWI-IR Battery Energy Storage Facility", proc. 23rdcompressed air, and battery energy storage are all only 65

Hassenzahl, W.

2011-01-01T23:59:59.000Z

324

Human Health Science Building Geothermal Heat Pumps  

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

HUMAN HEALTH SCIENCE BLDG GEO HEAT PUMP SYSTEMS Principal Investigator Source Heat Pumps Demo Projects May 20, 2010 This presentation does not contain any proprietary confidential,...

325

Pumping System Assessment Tool | Department of Energy  

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

of pumping system operations. PSAT uses achievable pump performance data from Hydraulic Institute standards and motor performance data from the MotorMaster+ database to...

326

Evaluation of solar collectors for heat pump applications. Final report  

SciTech Connect (OSTI)

The study was initiated to evaluate the potential utility of very low cost (possibly unglazed and uninsulated) solar collectors to serve as both heat collection and rejection devices for a liquid source heat pump. The approach consisted of exercising a detailed analytical simulation of the complete heat pump/solar collector/storage system against heating and cooling loads derived for typical single-family residences in eight US cities. The performance of each system was measured against that of a conventional air-to-air heat pump operating against the same loads. In addition to evaluation of solar collector options, the study included consideration of water tanks and buried pipe grids to provide thermal storage. As a supplement to the analytical tasks, the study included an experimental determination of night sky temperature and convective heat transfer coefficients for surfaces with dimensions typical of solar collectors. The experiments were conducted in situ by placing the test apparatus on the roofs of houses in the Denver, Colorado, area. (MHR)

Skartvedt, Gary; Pedreyra, Donald; McMordle, Dr., Robert; Kidd, James; Anderson, Jerome; Jones, Richard

1980-08-01T23:59:59.000Z

327

Fluid Dynamics in Sucker Rod Pumps  

SciTech Connect (OSTI)

Sucker rod pumps are installed in approximately 90% of all oil wells in the U.S. Although they have been widely used for decades, there are many issues regarding the fluid dynamics of the pump that have not been fully investigated. A project was conducted at Sandia National Laboratories to develop unimproved understanding of the fluid dynamics inside a sucker rod pump. A mathematical flow model was developed to predict pressures in any pump component or an entire pump under single-phase fluid and pumping conditions. Laboratory flow tests were conducted on instrumented individual pump components and on a complete pump to verify and refine the model. The mathematical model was then converted to a Visual Basic program to allow easy input of fluid, geometry and pump parameters and to generate output plots. Examples of issues affecting pump performance investigated with the model include the effects of viscosity, surface roughness, valve design details, plunger and valve pressure differentials, and pumping rate.

Cutler, R.P.; Mansure, A.J.

1999-01-14T23:59:59.000Z

328

Hydro-Québec Distribution- Biomass- EAP 2011-1 (Quebec, Canada)  

Broader source: Energy.gov [DOE]

Hydro-Québec Distribution established a program for the purchase of 300 MW of electricity in Quebec from cogeneration based residual forest biomass. Each project is limited to a maximum of 50 MW....

329

A Geological and Hydro-Geochemical Study of the Animas Geothermal...  

Open Energy Info (EERE)

Hydro-Geochemical Study of the Animas Geothermal Area, Hidalgo County, New Mexico Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: A Geological...

330

A test case for implementing feedback control in a micro hydro power plant.  

E-Print Network [OSTI]

??Micro-hydro turbines generate power for small villages and industries in Afghanistan. They usually produce less than 100 kW of power. Currently the flow into the… (more)

Suliman, Ahmad

2010-01-01T23:59:59.000Z

331

BC Hydro Industrial Sector: Marketing Sector Marketing Plan (Fiscal 2005/Fiscal 2006)  

E-Print Network [OSTI]

BC Hydro, the major electricity utility in the Province of British Columbia has been promoting industrial energy efficiency for more than 15 years. Recently it has launched a new Demand Side Management initiative with the objective of obtaining 2000...

Willis, P.; Wallace, K.

2005-01-01T23:59:59.000Z

332

Impact of land use change on a hydro-meteorological event in Kampala, Uganda  

E-Print Network [OSTI]

Impact of land use change on a hydro-meteorological event in Kampala, Uganda Problem statement Kampala is the capital city of Uganda on the northern shores of Lake Victoria. Here, future climate change

Jetten, Victor

333

Hydro-Quebec Sustainable Development Action Plan 2009-2013 (Quebec, Canada)  

Broader source: Energy.gov [DOE]

To meet the requirements set out in the Québec government’s Sustainable Development Strategy and strategy to ensure the occupancy and vitality of territories, Hydro-Québec has established a...

334

Polymers with hydro-responsive topography identified using high throughput AFM of an acrylate microarray  

E-Print Network [OSTI]

Atomic force microscopy has been applied to an acrylate polymer microarray to achieve a full topographic characterisation. This process discovered a small number of hydro-responsive materials created from monomers with ...

Hook, Andrew L.

335

Thermo-and hydro-mechanical processes along faults during rapid slip  

E-Print Network [OSTI]

Thermo- and hydro-mechanical processes along faults during rapid slip James R. Rice & Eric M micro-contacts, and (2) Thermal pressurization of fault-zone pore fluid. Both have characteristics which

Dunham, Eric M.

336

Failure in shear bands for granular materials: thermo-hydro-chemo-mechanical effects  

E-Print Network [OSTI]

Failure in shear bands for granular materials: thermo-hydro-chemo- mechanical effects M. VEVEAKIS depends on the chemical reaction characteristics and that micro-inertia due to grain translations

Paris-Sud XI, Université de

337

Electromagnetically driven peristaltic pump  

DOE Patents [OSTI]

An electromagnetic peristaltic pump apparatus may comprise a main body section having an inlet end and an outlet end and a flexible membrane which divides the main body section into a first cavity and a second cavity. The first cavity is in fluid communication with the inlet and outlet ends of the main body section. The second cavity is not in fluid communication with the first cavity and contains an electrically conductive fluid. The second cavity includes a plurality of electrodes which are positioned within the second cavity generally adjacent the flexible membrane. A magnetic field generator produces a magnetic field having a plurality of flux lines at least some of which are contained within the second cavity of the main body section and which are oriented generally parallel to a flow direction in which a material flows between the inlet and outlet ends of the main body section. A control system selectively places a voltage potential across selected ones of the plurality of electrodes to deflect the flexible membrane in a wave-like manner to move material contained in the first cavity between the inlet and outlet ends of the main body section.

Marshall, Douglas W. (Blackfoot, ID)

2000-01-01T23:59:59.000Z

338

Charge-pumping in a synthetic leaf for harvesting energy from evaporation-driven flows  

E-Print Network [OSTI]

Charge-pumping in a synthetic leaf for harvesting energy from evaporation-driven flows Ruba T storage capacitor by 2­5 V. We provide estimates of power density, energy density, and scavenging. When the gas phase around the plant is at a lower water potential than the saturated soil, water

Maharbiz, Michel

339

BY SHAWN XU, Ph.D. Ground Source Heat Pumps Serve  

E-Print Network [OSTI]

BY SHAWN XU, Ph.D. 1 Ground Source Heat Pumps Serve A Large; BY SHAWN XU, Ph.D. 7 Loop Func>ons § Seasonal storage (Single output) § Hourly buffering (Dual output) #12; BY SHAWN XU, Ph.D. 8 Ground Loops § Ground

340

Industrial Heat Pump Design Options  

E-Print Network [OSTI]

There are numerous industries that can incorporate heat pumps into their operations to save energy costs and payoff the investment in well under two years. Many of these industries can cut energy costs associated with evaporation by over 75...

Gilbert, J. S.

Note: This page contains sample records for the topic "hydro pumped storage" 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

Method for controlling powertrain pumps  

DOE Patents [OSTI]

A method of controlling a pump supplying a fluid to a transmission includes sensing a requested power and an excess power for a powertrain. The requested power substantially meets the needs of the powertrain, while the excess power is not part of the requested power. The method includes sensing a triggering condition in response to the ability to convert the excess power into heat in the transmission, and determining that an operating temperature of the transmission is below a maximum. The method also includes determining a calibrated baseline and a dissipation command for the pump. The calibrated baseline command is configured to supply the fluid based upon the requested power, and the dissipation command is configured to supply additional fluid and consume the excess power with the pump. The method operates the pump at a combined command, which is equal to the calibrated baseline command plus the dissipation command.

Sime, Karl Andrew; Spohn, Brian L; Demirovic, Besim; Martini, Ryan D; Miller, Jean Marie

2013-10-22T23:59:59.000Z

342

Process Cooling Pumping Systems Analysis  

E-Print Network [OSTI]

An analysis of the mill water pumping systems at a North American manufacturing facility was conducted late las year and the following issues were observed: 1. Overpumping – Both systems were overpumped to a significant degree against...

Sherman, C.

2008-01-01T23:59:59.000Z

343

An electrically pumped germanium laser  

E-Print Network [OSTI]

Electrically pumped lasing from Germanium-on-Silicon pnn heterojunction diode structures is demonstrated. Room temperature multimode laser with 1mW output power is measured. Phosphorous doping in Germanium at a concentration ...

Cai, Yan

344

temperature heat pumps applied to  

E-Print Network [OSTI]

Very high- temperature heat pumps applied to energy efficiency in industry Application June 21th 2012 Energy efficiency : A contribution to environmental protection Kyoto Copenhage Emission, plastics Partnership : EDF R&D Bil

Oak Ridge National Laboratory

345

Transverse pumped laser amplifier architecture  

DOE Patents [OSTI]

An optical gain architecture includes a pump source and a pump aperture. The architecture also includes a gain region including a gain element operable to amplify light at a laser wavelength. The gain region is characterized by a first side intersecting an optical path, a second side opposing the first side, a third side adjacent the first and second sides, and a fourth side opposing the third side. The architecture further includes a dichroic section disposed between the pump aperture and the first side of the gain region. The dichroic section is characterized by low reflectance at a pump wavelength and high reflectance at the laser wavelength. The architecture additionally includes a first cladding section proximate to the third side of the gain region and a second cladding section proximate to the fourth side of the gain region.

Bayramian, Andrew James; Manes, Kenneth; Deri, Robert; Erlandson, Al; Caird, John; Spaeth, Mary

2013-07-09T23:59:59.000Z

346

Pump control system for windmills  

DOE Patents [OSTI]

A windmill control system having lever means, for varying length of stroke of the pump piston, and a control means, responsive to the velocity of the wind to operate the lever means to vary the length of stroke and hence the effective displacement of the pump in accordance with available wind energy, with the control means having a sensing member separate from the windmill disposed in the wind and displaceable thereby in accordance with wind velocity.

Avery, Don E. (45-437 Akimala St., Honolulu, HI 96744)

1983-01-01T23:59:59.000Z

347

Laminated electromagnetic pump stator core  

DOE Patents [OSTI]

A stator core for an electromagnetic pump includes a plurality of circumferentially abutting tapered laminations extending radially outwardly from a centerline axis to collectively define a radially inner bore and a radially outer circumference. Each of the laminations includes radially inner and outer edges and has a thickness increasing from the inner edge toward the outer edge to provide a substantially continuous path adjacent the circumference. This pump is used in nuclear fission reactors. 19 figs.

Fanning, A.W.

1995-08-08T23:59:59.000Z

348

Heat Pump Markets UK in Europe  

E-Print Network [OSTI]

Heat Pump Markets UK in Europe IEA Heat Pump Workshop 13. November 2012 Zoltan Karpathy #12;2 Excellence in Market Intelligence Agenda About BSRIA WMI UK in the European Heat Pump Market Heating BSRIA WMI UK in the European Heat Pump Market Heating Technologies in New and Existing Buildings Hybrid

Oak Ridge National Laboratory

349

Heat pump market and statistics report 2013  

E-Print Network [OSTI]

#12;Heat pump market and statistics report 2013 Thomas Nowak Secretary General European Heat Pump Summit 15.10./16.10.2013 | Nuremberg #12;European Heat Pump Association (EHPA) · 107 members from 22 countries (status 08/2013) ­ Heat pump manufacturers ­ Component manufacturers ­ National associations

Oak Ridge National Laboratory

350

Understanding the Effects of Groundwater Pumping on  

E-Print Network [OSTI]

Understanding the Effects of Groundwater Pumping on Streamflow Depletion through USGS Capture Maps (Vertical and Horizontal Distance from Streams) Pumping rates and pumping schedules The timing source of water to the wells in years to decades. 0 10 mi #12;Pumping Can Affect Other Hydrologic

351

Operating Instructions CASSEHE PUMP DRIVE UNIT  

E-Print Network [OSTI]

4 · Operating Instructions CASSEHE® PUMP DRIVE UNIT Catalog No. 72-510-000 72-510-220 PUMPING The squeezing action of rollers on tubing causes the peristaltic pumping action. The flow is proportionate to the speied of the rollers and the inside diameter of the tubing, both of which can be varied. Pumping

Kleinfeld, David

352

Women's Health: Guidelines for Breast Pump Coverage  

E-Print Network [OSTI]

Women's Health: Guidelines for Breast Pump Coverage AETNA CIGNA UHC In-Network covered 100%, no out-of-network coverage. · The member would need to obtain the breast pump from a network provider. Breast pumps purchased-of-network provider facility. The member has the option to rent a breast pump or purchase a personal double

Grishok, Alla

353

Il pumping lemma Proprieta' di chiusura  

E-Print Network [OSTI]

Il pumping lemma Proprieta' di chiusura Proprieta' di decisione Proprieta' dei linguaggi regolari Proprieta' dei linguaggi regolari #12;Il pumping lemma Proprieta' di chiusura Proprieta' di decisione Proprieta' dei Linguaggi regolari Pumping Lemma. Ogni linguaggio regolare soddisfa il pumping lemma. Se

Rossi, Francesca

354

Proposal for a novel chemical heat pump dryer  

SciTech Connect (OSTI)

A new chemical heat pump (CHP) system for ecofriendly effective utilization of thermal energy in drying is proposed from the viewpoints of energy saving and environmental impact. CHPs can store thermal energy in the form of chemical energy by an endothermic reaction and release it at various temperature levels for heat demands by exo/endothermic reactions. CHPs have potential for heat recovery and dehumidification in the drying process by heat storage and high/low temperature heat release. In this study, the authors estimate the potential of the CHP application to drying systems for industrial use. Some combined systems of CHPs and dryers are proposed as chemical heat pump dryers (CHPD). The potential for commercialization of CHPDs is discussed.

Ogura, Hironao; Mujumdar, A.S.

2000-05-01T23:59:59.000Z

355

Measure Guideline: Replacing Single-Speed Pool Pumps with Variable Speed Pumps for Energy Savings  

SciTech Connect (OSTI)

The report evaluates potential energy savings by replacing traditional single-speed pool pumps with variable speed pool pumps, and provide a basic cost comparison between continued uses of traditional pumps verses new pumps. A simple step-by-step process for inspecting the pool area and installing a new pool pump follows.

Hunt, A.; Easley, S.

2012-05-01T23:59:59.000Z

356

Optically pumped isotopic ammonia laser system  

DOE Patents [OSTI]

An optically pumped isotopic ammonia laser system which is capable of producing a plurality of frequencies in the middle infrared spectral region. Two optical pumping mechanisms are disclosed, i.e., pumping on R(J) and lasing on P(J) in response to enhancement of rotational cascade lasing including stimulated Raman effects, and, pumping on R(J) and lasing on P(J+2). The disclosed apparatus for optical pumping include a hole coupled cavity and a grating coupled cavity.

Buchwald, Melvin I. (Santa Fe, NM); Jones, Claude R. (Los Alamos, NM); Nelson, Leonard Y. (Seattle, WA)

1982-01-01T23:59:59.000Z

357

Turbulent magnetic pumping in a Babcock-Leighton solar dynamo model  

E-Print Network [OSTI]

The turbulent pumping effect corresponds to the transport of magnetic flux due to the presence of density and turbulence gradients in convectively unstable layers. In the induction equation it appears as an advective term and for this reason it is expected to be important in the solar and stellar dynamo processes. In this work, we have explored the effects of the turbulent pumping in a flux-dominated Babcock-Leighton solar dynamo model with a solar-like rotation law. The results reveal the importance of the pumping mechanism for solving current limitations in mean field dynamo modeling such as the storage of the magnetic flux and the latitudinal distribution of the sunspots. In the case that a meridional flow is assumed to be present only in the upper part of the convective zone, it is the full turbulent pumping that regulates both the period of the solar cycle and the latitudinal distribution of the sunspots activity.

G. Guerrero; E. M. de Gouveia Dal Pino

2008-03-24T23:59:59.000Z

358

Congrs SHF : Environnement et Hydro-lectricit , Lyon,6 & 7 octobre 2010 Pigay, Aelbrecht, Beal RESTAURATION MORPHO-DYNAMIQUE ET  

E-Print Network [OSTI]

Congrès SHF : « Environnement et Hydro-électricité », Lyon,6 & 7 octobre 2010 ­Piégay, Aelbrecht pour la protection contre les crues et la navigation, puis après la construction de barrages hydro deux projets est de définir un plan de restauration hydro-morphologique et écologique conduisant à la

Paris-Sud XI, Université de

359

Microelectromechanical pump utilizing porous silicon  

DOE Patents [OSTI]

A microelectromechanical (MEM) pump is disclosed which includes a porous silicon region sandwiched between an inlet chamber and an outlet chamber. The porous silicon region is formed in a silicon substrate and contains a number of pores extending between the inlet and outlet chambers, with each pore having a cross-section dimension about equal to or smaller than a mean free path of a gas being pumped. A thermal gradient is provided along the length of each pore by a heat source which can be an electrical resistance heater or an integrated circuit (IC). A channel can be formed through the silicon substrate so that inlet and outlet ports can be formed on the same side of the substrate, or so that multiple MEM pumps can be connected in series to form a multi-stage MEM pump. The MEM pump has applications for use in gas-phase MEM chemical analysis systems, and can also be used for passive cooling of ICs.

Lantz, Jeffrey W. (Albuquerque, NM); Stalford, Harold L. (Norman, OK)

2011-07-19T23:59:59.000Z

360

A Hydro-Economic Approach to Representing Water Resources Impacts in Integrated Assessment Models  

SciTech Connect (OSTI)

Grant Number DE-FG02-98ER62665 Office of Energy Research of the U.S. Department of Energy Abstract Many Integrated Assessment Models (IAM) divide the world into a small number of highly aggregated regions. Non-OECD countries are aggregated geographically into continental and multiple-continental regions or economically by development level. Current research suggests that these large scale aggregations cannot accurately represent potential water resources-related climate change impacts. In addition, IAMs do not explicitly model the flow regulation impacts of reservoir and ground water systems, the economics of water supply, or the demand for water in economic activities. Using the International Model for Policy Analysis of Agricultural Commodities and Trade (IMPACT) model of the International Food Policy Research Institute (IFPRI) as a case study, this research implemented a set of methodologies to provide accurate representation of water resource climate change impacts in Integrated Assessment Models. There were also detailed examinations of key issues related to aggregated modeling including: modeling water consumption versus water withdrawals; ground and surface water interactions; development of reservoir cost curves; modeling of surface areas of aggregated reservoirs for estimating evaporation losses; and evaluating the importance of spatial scale in river basin modeling. The major findings include: - Continental or national or even large scale river basin aggregation of water supplies and demands do not accurately capture the impacts of climate change in the water and agricultural sector in IAMs. - Fortunately, there now exist gridden approaches (0.5 X 0.5 degrees) to model streamflows in a global analysis. The gridded approach to hydrologic modeling allows flexibility in aligning basin boundaries with national boundaries. This combined with GIS tools, high speed computers, and the growing availability of socio-economic gridded data bases allows assignment of demands to river basins to create hydro-economic zones that respect as much as possible both political and hydrologic integrity in different models. - To minimize pre-processing of data and add increased flexibility to modeling water resources and uses, it is recommended that water withdrawal demands be modeled, not consumptive requirements even though this makes the IAM more complex. - IAMs must consider changes in water availability for irrigation under climate change; ignoring them is more inaccurate than ignoring yield changes in crops under climate change. - Determining water availability and cost in river basins must include modeling streamflows, reservoirs and their operations, and ground water and its interaction with surface water. - Scale issues are important. The results from condensing demands and supplies in a large complex river basin to one node can be misleading for all uses under low flow conditions and instream flow uses under all conditions. Monthly is generally the most accurate scale for modeling river flows and demands. Challenges remain in integrating hydrologic units with political boundaries but the gridded approach to hydrologic modeling allows flexibility in aligning basin boundaries with political boundaries. - Using minimal reservoir cost data, it is possible to use basin topography to estimate reservoir storage costs. - Reservoir evaporation must be considered when assessing the usable water in a watershed. Several methods are available to estimate the relationship between aggregated storage surface area and storage volume. - For existing or future IAMs that can not use the appropriate aggregation for water, a water preprocessor may be required due the finer scale of hydrologic impacts.

Kirshen, Paul H.; Strzepek, Kenneth, M.

2004-01-14T23:59:59.000Z

Note: This page contains sample records for the topic "hydro pumped storage" 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

Hydro-Gravitational-Dynamics of Planets and Dark Energy  

E-Print Network [OSTI]

Self-gravitational fluid mechanical methods termed hydro-gravitational-dynamics (HGD) predict plasma fragmentation 0.03 Myr after the turbulent big bang to form protosuperclustervoids, turbulent protosuperclusters, and protogalaxies at the 0.3 Myr transition from plasma to gas. Linear protogalaxyclusters fragment at 0.003 Mpc viscous-inertial scales along turbulent vortex lines or in spirals, as observed. The plasma protogalaxies fragment on transition into white-hot planet-mass gas clouds (PFPs) in million-solar-mass clumps (PGCs) that become globular-star-clusters (GCs) from tidal forces or dark matter (PGCs) by freezing and diffusion into 0.3 Mpc halos with 97% of the galaxy mass. The weakly collisional non-baryonic dark matter diffuses to > Mpc scales and frag-ments to form galaxy cluster halos. Stars and larger planets form by binary mergers of the trillion PFPs per PGC on 0.03 Mpc galaxy accretion disks. Star deaths depend on rates of planet accretion and internal star mixing. Moderate accretion rates produce white dwarfs that evaporate surrounding gas planets by spin-radiation to form planetary nebulae before Supernova Ia events, dimming some events to give systematic distance errors misinterpreted as the dark energy hypothesis and overestimates of the universe age. Failures of standard LCDM cosmological models reflect not only obsolete Jeans 1902 fluid mechanical assumptions, but also failures of standard turbulence models that claim the cascade of turbulent kinetic energy is from large scales to small. Because turbulence is always driven at all scales by inertial-vortex forces the turbulence cascade is always from small scales to large.

Carl H. Gibson; Rudolph E. Schild

2008-08-24T23:59:59.000Z

362

Enhancing fire safety at Hydro plants with dry transformers  

SciTech Connect (OSTI)

Hydroelectric plant owners and engineers can use dry-type transformers to reduce fire hazards in auxiliary power systems. The decision to replace a liquid-immersed transformer with a dry-type product has a price: higher unit cost and a need to be more vigilant in detailing transformer specifications. But, whether the change affects only one failed transformer or is part of a plant rehabilitation project, the benefits in safety can be worth it. Voltages on hydroelectric plant auxiliary power systems can range from a 20 kV medium-voltage system to the normal 480-208/120 V low-voltage system. Dry transformers typically are used in such systems to reduce the fire hazard present with liquid-filled transformers. For a hydro plant owner or engineer seeking alternatives to liquid-filled transformers, there are two main kinds of dry-type transformers to consider: vacuum pressure impregnated (VPI) and cast coil epoxy resin. VPI transformers normally are manufactured in sizes up to 6,000 kVA with primary voltage ratings up to 20 kV. Cast coil transformers can be made in sizes from 75 to 10,000 kVA, with primary voltage ratings up to 34,500 V. Although the same transformer theory applies to dry transformers as to liquid-filled units, the cooling medium, air, required different temperature rise ratings, dielectric tests, and construction techniques to ensure reliability. Consequently, the factory and field tests for dry units are established by a separate set of American National Standards Institute (ANSI)/Institute of Electrical and Electronics Engineers (IEEE) standards. Cast coil transformers have several important advantages over VPI units.

Clemen, D.M. (Harza Engineering Company, Chicago, IL (United States))

1993-06-01T23:59:59.000Z

363

Piston-assisted charge pumping  

E-Print Network [OSTI]

We examine charge transport through a system of three sites connected in series in the situation when an oscillating charged piston modulates the energy of the middle site. We show that with an appropriate set of parameters, charge can be transferred against an applied voltage. In this scenario, when the oscillating piston shifts away from the middle site, the energy of the site decreases and it is populated by a charge transferred from the lower energy site. On the other hand, when the piston returns to close proximity, the energy of the middle site increases and it is depopulated by the higher energy site. Thus through this process, the charge is pumped against the potential gradient. Our results can explain the process of proton pumping in one of the mitochondrial enzymes, Complex I. Moreover, this mechanism can be used for electron pumping in semiconductor nanostructures.

Kaur, D; Mourokh, L

2015-01-01T23:59:59.000Z

364

Variable delivery, fixed displacement pump  

DOE Patents [OSTI]

A variable delivery, fixed displacement pump comprises a plurality of pistons reciprocated within corresponding cylinders in a cylinder block. The pistons are reciprocated by rotation of a fixed angle swash plate connected to the pistons. The pistons and cylinders cooperate to define a plurality of fluid compression chambers each have a delivery outlet. A vent port is provided from each fluid compression chamber to vent fluid therefrom during at least a portion of the reciprocal stroke of the piston. Each piston and cylinder combination cooperates to close the associated vent port during another portion of the reciprocal stroke so that fluid is then pumped through the associated delivery outlet. The delivery rate of the pump is varied by adjusting the axial position of the swash plate relative to the cylinder block, which varies the duration of the piston stroke during which the vent port is closed.

Sommars, Mark F. (Sparland, IL)

2001-01-01T23:59:59.000Z

365

Sandia National Laboratories: Energy Storage Multimedia Gallery  

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

StorageEnergy Storage Multimedia Gallery Energy Storage Multimedia Gallery Images Videos Energy Storage Image Gallery Energy Storage B-Roll Videos Battery Abuse Testing Laboratory...

366

Cool Storage Performance  

E-Print Network [OSTI]

Utilities have promoted the use of electric heat and thermal storage to increase off peak usage of power. High daytime demand charges and enticing discounts for off peak power have been used as economic incentives to promote thermal storage systems...

Eppelheimer, D. M.

1985-01-01T23:59:59.000Z

367

Underground Storage Tank Regulations  

Broader source: Energy.gov [DOE]

The Underground Storage Tank Regulations is relevant to all energy projects that will require the use and building of pipelines, underground storage of any sorts, and/or electrical equipment. The...

368

Safe Home Food Storage  

E-Print Network [OSTI]

Proper food storage can preserve food quality and prevent spoilage and food/borne illness. The specifics of pantry, refrigerator and freezer storage are given, along with helpful information on new packaging, label dates, etc. A comprehensive table...

Van Laanen, Peggy

2002-08-22T23:59:59.000Z

369

FED pumped limiter configuration issues  

SciTech Connect (OSTI)

Impurity control in the Fusion Engineering Device (FED) is provided by a toroidal belt pumped limiter. Limiter design issues addressed in this paper are (1) poloidal location of the limiter belt, (2) shape of the limiter surface facing the plasma, and (3) whether the belt is pumped from one or both sides. The criteria used for evaluation of limiter configuration features were sensitivity to plasma-edge conditions and ease of maintenance and fabrication. The evaluation resulted in the selection of a baseline FED limiter that is located at the bottom of the device and has a flat surface with a single leading edge.

Haines, J.R.; Fuller, G.M.

1983-01-01T23:59:59.000Z

370

Integration of heat pumps into industrial processes  

SciTech Connect (OSTI)

The Department of Energy and others have funded studies to assess the potential for energy savings using industrial heat pumps. The studies included classifications of heat pumps, economic evaluations, and placement of heat pumps in industrial processes. Pinch technology was used in the placement studies to determine the placement, size, and type of heat pumps for a given applications. There appears to be considerable scope for heat pumping in several industries, but, where maximum process energy savings are desired, it is important to consider heat pumping in the context of overall process integration. 19 refs., 15 figs.

Chappell, R.N. (USDOE, Washington, DC (USA)); Priebe, S.J. (EG and G Idaho, Inc., Idaho Falls, ID (USA))

1989-01-01T23:59:59.000Z

371

Peristaltic pumps work in nano scales  

E-Print Network [OSTI]

A design for a pump is suggested which is based on well-known peristaltic pumps. In order to simply describe the operation of the proposed pump, an innovative interpretation of low Reynolds number swimmers is presented and thereafter a similar theoretical model would be suggested to quantify the behavior of the pumps. A coarse-grained molecular dynamic simulation is used to examine the theoretical predictions and measure the efficiency of the pump in nano scales. It is shown that this pump with a modest design is capable of being a good option for transport processes in nano scale.

Farnoush Farahpour; Mohammad Reza Ejtehadi

2013-08-05T23:59:59.000Z

372

Changes in the Economic Value of Variable Generation at High Penetration Levels: A Pilot Case Study of California  

E-Print Network [OSTI]

4.3 Hydropower and Pumped Hydro Storage . . 4.4 Thermal24 Integration of Wind and Hydropower Systems; Volume 1:and Economics of Wind and Hydropower Integration. Technical

Mills, Andrew

2013-01-01T23:59:59.000Z

373

A1078 Journal  

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

1,2 Compared to other grid-scale energy storage mechanisms such as flywheel and pump hydro, EESs are favorable because of their high efficiency, fast response, and because...

374

State Nuclear Profiles 2010  

U.S. Energy Information Administration (EIA) Indexed Site

60 Vermont Vermont total electric power industry, summer capacity and net generation, by energy source, 2010 Nuclear 620 55.0 4,782 72.2 Hydro and Pumped Storage 324 28.7 1,347...

375

PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE ESCUELA DE INGENIERIA  

E-Print Network [OSTI]

PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE ESCUELA DE INGENIERIA ALMACENAMIENTO DE ENERGÍA POR BOMBEO ESCUELA DE INGENIERIA ALMACENAMIENTO DE ENERGÍA POR BOMBEO (HYDRO-PUMPED STORAGE) EN EL MARCO REGULATORIO

Catholic University of Chile (Universidad Católica de Chile)

376

Energy Storage Systems  

SciTech Connect (OSTI)

Energy Storage Systems – An Old Idea Doing New Things with New Technology article for the International Assoication of ELectrical Inspectors

Conover, David R.

2013-12-01T23:59:59.000Z

377

Human Health Science Building Geothermal Heat Pumps | Department...  

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

Human Health Science Building Geothermal Heat Pumps Human Health Science Building Geothermal Heat Pumps Project objectives: Construct a ground sourced heat pump, heating,...

378

Energy 101: Geothermal Heat Pumps | Department of Energy  

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

Geothermal Heat Pumps Energy 101: Geothermal Heat Pumps Addthis Description An energy-efficient heating and cooling alternative, the geothermal heat pump system moves heat from the...

379

Heat Pump Water Heaters and American Homes: A Good Fit?  

E-Print Network [OSTI]

M.V. Lapsa. 2001. Residential Heat Pump Water Heater (HPWH)Calwell. 2005. Residential Heat Pump Water Heaters: Energyfor Residential Heat Pump Water Heaters Installed in

Franco, Victor

2011-01-01T23:59:59.000Z

380

Heat Pump Water Heaters and American Homes: A Good Fit?  

E-Print Network [OSTI]

2001. Residential Heat Pump Water Heater (HPWH) Development2005. Residential Heat Pump Water Heaters: Energy Efficiencyfor Residential Heat Pump Water Heaters Installed in

Franco, Victor

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydro pumped storage" 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

FOREST CENTRE STORAGE BUILDING  

E-Print Network [OSTI]

FOREST CENTRE STORAGE BUILDING 3 4 5 6 7 8 UniversityDr. 2 1 G r e n f e l l D r i v e MULTI PURPOSE COURT STUDENT RESIDENCES GREEN HOUSE STUDENT RESIDENCES STUDENT RESIDENCES RECPLEX STORAGE BUILDING STORAGE BUILDING LIBRARY & COMPUTING FINE ARTS FOREST CENTRE ARTS &SCIENCE BUILDING ARTS &SCIENCE

deYoung, Brad

382

Pump for molten metal or other fluid  

DOE Patents [OSTI]

A pump having no moving parts which can be used to pump high temperature molten metal or other fluids in a vacuum or low pressure environment, and a method for pumping such fluids. The pump combines elements of a bubble pump with a trap which isolates the vacuum or low pressure region from the gas used to create the bubbles. When used in a vacuum the trap prevents the pumping gas from escaping into the isolated region and thereby reducing the quality of the vacuum. The pump includes a channel in which a pumping gas is forced under pressure into a cavity where bubbles are formed. The cavity is in contact with a reservoir which contains the molten metal or other fluid which is to be pumped. The bubbles rise up into a column (or pump tube) carrying the fluid with them. At the top of the column is located a deflector which causes the bubbles to burst and the drops of pumped fluid to fall into a trap. The fluid accumulates in the trap, eventually forcing its way to an outlet. A roughing pump can be used to withdraw the pumping gas from the top of the column and assist with maintaining the vacuum or low pressure environment.

Horton, James A. (Livermore, CA); Brown, Donald L. (Livermore, CA)

1994-01-01T23:59:59.000Z

383

Modeling the Benefits of Storage Technologies to Wind Power  

SciTech Connect (OSTI)

Rapid expansion of wind power in the electricity sector is raising questions about how wind resource variability might affect the capacity value of wind farms at high levels of penetration. Electricity storage, with the capability to shift wind energy from periods of low demand to peak times and to smooth fluctuations in output, may have a role in bolstering the value of wind power at levels of penetration envisioned by a new Department of Energy report ('20% Wind by 2030, Increasing Wind Energy's Contribution to U.S. Electricity Supply'). This paper quantifies the value storage can add to wind. The analysis was done employing the Regional Energy Deployment System (ReEDS) model, formerly known as the Wind Deployment System (WinDS) model. ReEDS was used to estimate the cost and development path associated with 20% penetration of wind in the report. ReEDS differs from the WinDS model primarily in that the model has been modified to include the capability to build and use three storage technologies: pumped-hydroelectric storage (PHS), compressed-air energy storage (CAES), and batteries. To assess the value of these storage technologies, two pairs of scenarios were run: business-as-usual, with and without storage; 20% wind energy by 2030, with and without storage. This paper presents the results from those model runs.

Sullivan, P.; Short, W.; Blair, N.

2008-06-01T23:59:59.000Z

384

Concentrating Solar Program; Session: Thermal Storage - Overview (Presentation)  

SciTech Connect (OSTI)

The project overview of this presentation is: (1) description--(a) laboratory R and D in advanced heat transfer fluids (HTF) and thermal storage systems; (b) FOA activities in solar collector and component development for use of molten salt as a heat transfer and storage fluid; (c) applications for all activities include line focus and point focus solar concentrating technologies; (2) Major FY08 Activities--(a) advanced HTF development with novel molten salt compositions with low freezing temperatures, nanofluids molecular modeling and experimental studies, and use with molten salt HTF in solar collector field; (b) thermal storage systems--cost analysis and updates for 2-tank and thermocline storage and model development and analysis to support near-term trought deployment; (c) thermal storage components--facility upgrade to support molten salt component testing for freeze-thaw receiver testing, long-shafted molten salt pump for parabolic trough and power tower thermal storage systems; (d) CSP FOA support--testing and evaluation support for molten salt component and field testing work, advanced fluids and storage solicitation preparation, and proposal evaluation for new advanced HTF and thermal storage FOA.

Glatzmaier, G.; Mehos, M.; Mancini, T.

2008-04-01T23:59:59.000Z

385

Development of HydroImage, A User Friendly Hydrogeophysical Characterization Software  

SciTech Connect (OSTI)

HydroImage, user friendly software that utilizes high-resolution geophysical data for estimating hydrogeological parameters in subsurface strate, was developed under this grant. HydroImage runs on a personal computer platform to promote broad use by hydrogeologists to further understanding of subsurface processes that govern contaminant fate, transport, and remediation. The unique software provides estimates of hydrogeological properties over continuous volumes of the subsurface, whereas previous approaches only allow estimation of point locations. thus, this unique tool can be used to significantly enhance site conceptual models and improve design and operation of remediation systems. The HydroImage technical approach uses statistical models to integrate geophysical data with borehole geological data and hydrological measurements to produce hydrogeological parameter estimates as 2-D or 3-D images.

Mok, Chin Man [GSI Environmental] [GSI Environmental; Hubbard, Susan [Lawrence Berkeley National Laboratory] [Lawrence Berkeley National Laboratory; Chen, Jinsong [Lawrence Berkeley National Laboratory] [Lawrence Berkeley National Laboratory; Suribhatla, Raghu [AMEC E& I] [AMEC E& I; Kaback, Dawn Samara [AMEC E& I] [AMEC E& I

2014-01-29T23:59:59.000Z

386

Energy 101: Geothermal Heat Pumps  

SciTech Connect (OSTI)

An energy-efficient heating and cooling alternative, the geothermal heat pump system moves heat from the ground to a building (or from a building to the ground) through a series of flexible pipe "loops" containing water. This edition of Energy 101 explores the benefits Geothermal and the science behind how it all comes together.

None

2011-01-01T23:59:59.000Z

387

Electric field divertor plasma pump  

DOE Patents [OSTI]

An electric field plasma pump includes a toroidal ring bias electrode (56) positioned near the divertor strike point of a poloidal divertor of a tokamak (20), or similar plasma-confining apparatus. For optimum plasma pumping, the separatrix (40) of the poloidal divertor contacts the ring electrode (56), which then also acts as a divertor plate. A plenum (54) or other duct near the electrode (56) includes an entrance aperture open to receive electrically-driven plasma. The electrode (56) is insulated laterally with insulators (63,64), one of which (64) is positioned opposite the electrode at the entrance aperture. An electric field E is established between the ring electrode (56) and a vacuum vessel wall (22), with the polarity of the bias applied to the electrode being relative to the vessel wall selected such that the resultant electric field E interacts with the magnetic field B already existing in the tokamak to create an E.times.B/B.sup.2 drift velocity that drives plasma into the entrance aperture. The pumped plasma flow into the entrance aperture is insensitive to variations, intentional or otherwise, of the pump and divertor geometry. Pressure buildups in the plenum or duct connected to the entrance aperture in excess of 10 mtorr are achievable.

Schaffer, Michael J. (San Diego, CA)

1994-01-01T23:59:59.000Z

388

Industrial Heat Pump Case Study  

E-Print Network [OSTI]

with operating the evaporator. The open-cycle heat pump design uses an electrically driven centrifugal compressor to recover the latent heat of the water vapor generated by the evaporator. (Steam was the original heat source but is now only needed for start...

Wagner, J. R.; Brush, F. C.

389

Electrokinetically pumped high pressure sprays  

DOE Patents [OSTI]

An electrokinetic pump capable of producing high pressure is combined with a nozzle having a submicron orifice to provide a high pressure spray device. Because of its small size, the device can be contained within medical devices such as an endoscope for delivering biological materials such as DNA, chemo therapeutic agents, or vaccines to tissues and cells.

Schoeniger, Joseph S. (Oakland, CA); Paul, Phillip H. (Livermore, CA); Schoeniger, Luke (Pittsford, NY)

2002-01-01T23:59:59.000Z

390

Energy 101: Geothermal Heat Pumps  

ScienceCinema (OSTI)

An energy-efficient heating and cooling alternative, the geothermal heat pump system moves heat from the ground to a building (or from a building to the ground) through a series of flexible pipe "loops" containing water. This edition of Energy 101 explores the benefits Geothermal and the science behind how it all comes together.

None

2013-05-29T23:59:59.000Z

391

Electric field divertor plasma pump  

DOE Patents [OSTI]

An electric field plasma pump includes a toroidal ring bias electrode positioned near the divertor strike point of a poloidal divertor of a tokamak, or similar plasma-confining apparatus. For optimum plasma pumping, the separatrix of the poloidal divertor contacts the ring electrode, which then also acts as a divertor plate. A plenum or other duct near the electrode includes an entrance aperture open to receive electrically-driven plasma. The electrode is insulated laterally with insulators, one of which is positioned opposite the electrode at the entrance aperture. An electric field E is established between the ring electrode and a vacuum vessel wall, with the polarity of the bias applied to the electrode being relative to the vessel wall selected such that the resultant electric field E interacts with the magnetic field B already existing in the tokamak to create an E [times] B/B[sup 2] drift velocity that drives plasma into the entrance aperture. The pumped plasma flow into the entrance aperture is insensitive to variations, intentional or otherwise, of the pump and divertor geometry. Pressure buildups in the plenum or duct connected to the entrance aperture in excess of 10 mtorr are achievable. 11 figs.

Schaffer, M.J.

1994-10-04T23:59:59.000Z

392

Industrial Heat Pumps--Types and Costs  

E-Print Network [OSTI]

Many potentially beneficial applications for industrial heat pumps are not being pursued because of confusion regarding both energy savings and economics. Part of this confusion stems from the variety of heat pumps available and the fact...

Chappell, R. N.; Bliem, C. J.; Mills, J. I.; Demuth, O. J.; Plaster, D. S.

393

Compact and highly efficient laser pump cavity  

DOE Patents [OSTI]

A new, compact, side-pumped laser pump cavity design which uses non-conventional optics for injection of laser-diode light into a laser pump chamber includes a plurality of elongated light concentration channels. In one embodiment, the light concentration channels are compound parabolic concentrators (CPC) which have very small exit apertures so that light will not escape from the pumping chamber and will be multiply reflected through the laser rod. This new design effectively traps the pump radiation inside the pump chamber that encloses the laser rod. It enables more uniform laser pumping and highly effective recycle of pump radiation, leading to significantly improved laser performance. This new design also effectively widens the acceptable radiation wavelength of the diodes, resulting in a more reliable laser performance with lower cost.

Chang, Jim J. (Dublin, CA); Bass, Isaac L. (Castro Valley, CA); Zapata, Luis E. (Livermore, CA)

1999-01-01T23:59:59.000Z

394

Experimental Study of Multiphase Pump Wear  

E-Print Network [OSTI]

The goal of this research is to better understand upstream Oil & Gas Electric Submersible Pump (ESP) reliability issues. The objective of this research is to determine how Liquid-Gas-Particulate (LGP) turbine pump wear differs from Liquid...

Steck, Daniel D'Andrea

2014-08-06T23:59:59.000Z

395

Portland General Electric- Heat Pump Rebate Program  

Broader source: Energy.gov [DOE]

Portland General Electric's (PGE) Heat Pump Rebate Program offers residential customers a $200 rebate for an energy-efficient heat pump installed to PGE’s standards by a PGE-approved contractor....

396

Geothermal Heat Pumps | Department of Energy  

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

it work? A geothermal heat pump uses the constant below ground temperature of soil or water to heat and cool your home. Geothermal heat pumps (GHPs), sometimes referred to as...

397

Abstract-Coal and hydro will be the main sources of electric energy in Chile for the near future, given that natural gas  

E-Print Network [OSTI]

Abstract- Coal and hydro will be the main sources of electric energy in Chile for the near future and the environmental dilemma faced by the country, where both coal and hydro produce some kind of impact. The role

Dixon, Juan

398

Storage Ring Revised March 1994  

E-Print Network [OSTI]

.5.4.3. Ground Plane Epoxy #12; 136 Storage Ring #12; Storage Ring 137 8.5.5. Coil Winding Process #12; 138Chapter 8. Storage Ring Revised March 1994 8.1. Introduction -- 107 -- #12; 108 Storage Ring 8.2. Magnetic Design and Field Calculations 8.2.1. Conceptual Approach #12; Storage Ring 109 #12; 110 Storage

Brookhaven National Laboratory - Experiment 821

399

Proposition de sujet de Thse de Doctorat Caractrisation multi chelle des proprits hydro-go-physiques des  

E-Print Network [OSTI]

Proposition de sujet de Thèse de Doctorat Caractérisation multi échelle des propriétés hydro structurales et ainsi développer des méthodologies d'acquisition hydro-géo-physique en ce milieu complexe

Naud Frédéric

400

Hydro-economic models: Concepts, design, applications, and future prospects Julien J. Harou a,*, Manuel Pulido-Velazquez b  

E-Print Network [OSTI]

Review Hydro-economic models: Concepts, design, applications, and future prospects Julien J. Harou Engineering, University College London, Pearson Building, Gouwer Street, London, UK b Departamento de of Frank Ward, Associate Editor Keywords: Hydro-economic models Integrated water resource management (IWRM

Pasternack, Gregory B.

Note: This page contains sample records for the topic "hydro pumped storage" 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

Hydro-Mechanical Coupling in Damaged Porous Media Containing Isolated Cracks or/and Vugs: Model and Computations  

E-Print Network [OSTI]

Hydro-Mechanical Coupling in Damaged Porous Media Containing Isolated Cracks or/and Vugs: Model In this paper we present the development of the macroscopic model describing the hydro-mechanical coupling model in the micro-porous domain saturated by a fluid. In the crack/vug domain the Stokes equation

Paris-Sud XI, Université de

402

Heat Pump Application- An Industrial Case Study  

E-Print Network [OSTI]

HEAT PUMP APPLICATION- AN INDUSTRIAL CASE STUDY Deepak Shukla, Ph.D. Sr. Process Engineer TENSA services, Inc. Houston, Texas ABSTRACT The economics of heat pumping across a distillation column is usually dependent on the amount... of additional compressor work required to lift thermal energy from a low source temperature to a high sink temperature. A reduction of this work improves the heat pump economics. This paper presents the results of a heat pump study conducted by TENSA...

Shukla, D.; Umoh, R.

403

Hydrogen Resource Assessment: Hydrogen Potential from Coal, Natural Gas, Nuclear, and Hydro Power  

SciTech Connect (OSTI)

This paper estimates the quantity of hydrogen that could be produced from coal, natural gas, nuclear, and hydro power by county in the United States. The study estimates that more than 72 million tonnes of hydrogen can be produced from coal, natural gas, nuclear, and hydro power per year in the country (considering only 30% of their total annual production). The United States consumed about 396 million tonnes of gasoline in 2007; therefore, the report suggests the amount of hydrogen from these sources could displace about 80% of this consumption.

Milbrandt, A.; Mann, M.

2009-02-01T23:59:59.000Z

404

Evaluation of fossil plants versus hydro plants for load frequency control  

SciTech Connect (OSTI)

The economics of using hydroplants with Francis turbines or fossil plants for load frequency control are evaluated. Using data from the TVA Gallatin steam plant and the TVA Cherokee, Wilson, and Fontana hydroplants, a cost comparison of different modes of operation for load frequency control was performed considering two plants at a time. The results showed that when the fossil plant was used for load frequency control instead of a hydro plant a lower system generation cost was incurred. Dynamic responses of fossil and hydro units, improved controls for fossil plants, and maneuvering costs of the Gallatin plant are also considered.

Broadwater, R.P.; Johnson, R.L.; Duckett, F.E.; Boston, W.T.

1985-01-01T23:59:59.000Z

405

A Hydro-mechanical Model and Analytical Solutions for Geomechanical Modeling of Carbon Dioxide Geological Sequestration  

SciTech Connect (OSTI)

We present a hydro-mechanical model for geological sequestration of carbon dioxide. The model considers the poroelastic effects by taking into account the coupling between the geomechanical response and the fluid flow in greater detail. The simplified hydro-mechanical model includes the geomechanical part that relies on the linear elasticity, while the fluid flow is based on the Darcy’s law. Two parts were coupled using the standard linear poroelasticity. Analytical solutions for pressure field were obtained for a typical geological sequestration scenario. The model predicts the temporal and spatial variation of pressure field and effects of permeability and elastic modulus of formation on the fluid pressure distribution.

Xu, Zhijie; Fang, Yilin; Scheibe, Timothy D.; Bonneville, Alain

2012-05-15T23:59:59.000Z

406

Promotion of efficient heat pumps for heating (ProHeatPump)  

E-Print Network [OSTI]

Project Promotion of efficient heat pumps for heating (ProHeatPump) EIE/06/072 / S12.444283 Supplementary report: Heat pumps in Norway May 2009 Work Package 4: Policy context and measures Authors: Nils of the industry and markets in the ProHeatPump partner countries, and should provide useful comparisons

407

Heat pumps in industrial cleaning applications  

E-Print Network [OSTI]

Heat pumps in industrial cleaning applications Achema 2012 - Frankfurt Bjarke Paaske, bjpa consuming n Plants are often heated by electricity n No standard heat pump units available Project to promote heat pumps in industrial cleaning apps. #12;Cleaning plant, drum type Items enter here #12;Washing

Oak Ridge National Laboratory

408

Dawdon Mine Water Heat Pump Trial  

E-Print Network [OSTI]

14-Dec-12 Dawdon Mine Water Heat Pump Trial #12;14 December 2012 2 Potential for Mine Water sourced heating Dawdon heat pump trial A demonstration project Contents #12;Friday, 14 December 2012 3 The UK salinity High Iron (removed by lime treatment) Offices , 8 rooms #12;Dawdon heat pump Warm mine water

Oak Ridge National Laboratory

409

Leviathan and the Air-Pump: Hobbes,  

E-Print Network [OSTI]

Leviathan and the Air-Pump: Hobbes, Boyle, and the Experimental Life Steven Shapin and Simon, Robert Boyle built an air-pump to do exper- iments. Does the story of Roundheads and Restor- ation have on the debates between Boyle and his archcritic Thomas Hobbes over the air-pump, the authors proposed

Landweber, Laura

410

An improved theory for regenerative pump performance  

E-Print Network [OSTI]

An improved theory for regenerative pump performance T Meakhail and S O Park Department. DOI: 10.1243/095765005X7565 Abstract: Owing to their low specific speed, regenerative pumps allow high heads with small flow rates and have performance curves with very stable features. This kind of pump

Kim, Yong Jung

411

GEOTHERMAL HEAT PUMPS Jack DiEnna  

E-Print Network [OSTI]

by DOE, "a Geothermal heat pump is a highly efficient RENEWABLE energy technology". #12;ArgumentGEOTHERMAL HEAT PUMPS THE "PLAYBOOK" Jack DiEnna Executive Director The Geothermal National What do we call it... Geothermal, Ground Source, GeoExchange. The feds call it geothermal heat pumps

412

Optimal Quantum Pumps J. E. Avron (a)  

E-Print Network [OSTI]

Optimal Quantum Pumps J. E. Avron (a) , A. Elgart (b) , G.M. Graf (c) and L. Sadun (d) (a) Department of Mathematics, University of Texas, Austin Texas 78712, USA Optimal pumps saturate a lower bound on energy dissipation. We give a characterization of optimal pumps in terms of the energy shift matrix

413

3, 26212673, 2006 Biotic pump of  

E-Print Network [OSTI]

HESSD 3, 2621­2673, 2006 Biotic pump of atmospheric moisture A. M. Makarieva and V. G. Gorshkov System Sciences Biotic pump of atmospheric moisture as driver of the hydrological cycle on land A. M (elba@infopro.spb.su) 2621 #12;HESSD 3, 2621­2673, 2006 Biotic pump of atmospheric moisture A. M

Boyer, Edmond

414

Insulin Pump Software Certification Yihai Chen1,  

E-Print Network [OSTI]

Insulin Pump Software Certification Yihai Chen1, , Mark Lawford2, , Hao Wang2, , and Alan Wassyng2 for Software Certification McMaster University, Hamilton, Ontario, Canada Abstract. The insulin pump. Malfunction of the insulin pump will endanger the user's life. All countries impose some regula- tion

Lawford, Mark

415

Onsite Wastewater Treatment Systems: Pump Tank  

E-Print Network [OSTI]

Pump tanks are concrete, fiberglass or polyethylene containers that collect wastewater to be dosed into the soil at intervals. This publication explains the design and maintenance of pump tanks, and it offers advice on what to do if a pump tank...

Lesikar, Bruce J.

2008-10-23T23:59:59.000Z

416

Software Enabled Virtually Variable Displacement Pumps -Theoretical and Experimental Studies  

E-Print Network [OSTI]

Software Enabled Virtually Variable Displacement Pumps - Theoretical and Experimental Studies the functional equivalent of a variable displacement pump. This approach combines a fixed displacement pump valve control, without many of the shortcomings of commercially available variable displacement pumps

Li, Perry Y.

417

Report on New Pumping System Software on Pumping Instrumentation and Control Skids  

SciTech Connect (OSTI)

This report documents the details of the Programmable Logic Controller (PLC) and the Data Table Access Module (DTAM) logic developed for the new pumping system employed for saltwell pumping. The new system is planned first for pumping A-101 where Pumping Instrumentation and Control (PIC) skid ''F'' is located. The new pump requires a bump start under certain conditions that will be controlled by the PLC. The bump start is to ensure sufficient water to the pump bearing cavities. The PLC logic is required to control the shutdown of the injection pump that supplies the water to the saltwell pump bearing cavities. Allowance to start and stop the injection pump will be controlled by the PLC at the PIC skid. This report is written for PIC skid ''P'', but will apply to other PIC skids where the new pumping system is deployed. The logic will remain the same, but the ladder rung-numbers may change from skid to skid.

HORNER, T.M.

2001-04-19T23:59:59.000Z

418

Toward hydro-social modeling: Merging human variables and the social sciences with climate-glacier runoff models (Santa River, Peru)  

E-Print Network [OSTI]

Toward hydro-social modeling: Merging human variables and the social sciences with climate mountain range, this paper provides a holistic hydro-social framework that identifies five major human of watershed dynamics. This hydro-social framework has wide- spread implications for hydrological modeling

McKenzie, Jeffrey M.

419

Virtues of simple hydro-economic optimization: Baja California, Mexico J. Medellin-Azuara a,*, L.G. Mendoza-Espinosa b  

E-Print Network [OSTI]

Virtues of simple hydro-economic optimization: Baja California, Mexico J. Medelli´n-Azuara a,*, L in revised form 1 May 2009 Accepted 22 May 2009 Available online 26 June 2009 Keywords: Hydro-economic models simple hydro-economic optimization to investigate a wide range of regional water system management

Pasternack, Gregory B.

420

Long-term evaluation of the Hydro-Thermodynamic Soil-Vegetation Scheme's frozen ground/permafrost component using observations at  

E-Print Network [OSTI]

Long-term evaluation of the Hydro-Thermodynamic Soil-Vegetation Scheme's frozen ground/permafrost component of the hydro-thermodynamic soil-vegetation scheme (HTSVS) was evaluated by means of permafrost computational time. Citation: Mo¨lders, N., and V. E. Romanovsky (2006), Long-term evaluation of the Hydro

Moelders, Nicole

Note: This page contains sample records for the topic "hydro pumped storage" 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

Hydro-climatology: Variability and Change (Proceedings of symposium J-H02 held during IUGG2011 in Melbourne, Australia, July 2011) (IAHS Publ. 344, 2011).  

E-Print Network [OSTI]

Hydro-climatology: Variability and Change (Proceedings of symposium J-H02 held during IUGG2011 in Melbourne, Australia, July 2011) (IAHS Publ. 344, 2011). Copyright © 2011 IAHS Press 195 How could hydro , L. COLLET2 , S. ARDOIN-BARDIN3 & P. ROUCOU4 1 CNRS, 2 UM2, 3 IRD ­ UMR HydroSciences Montpellier

Paris-Sud XI, Université de

422

Operational hydro-meteorological warning and real-time flood forecasting:the Piemonte region case study Hydrology and Earth System Sciences, 9(4), 457466 (2005) EGU  

E-Print Network [OSTI]

Operational hydro-meteorological warning and real-time flood forecasting:the Piemonte region case study 457 Hydrology and Earth System Sciences, 9(4), 457466 (2005) © EGU Operational hydro forecasting system in the context of the Piemonte Regions hydro-meteorological operational alert procedure

Paris-Sud XI, Université de

423

Eco-Hydro-Climate Science/Engineering in SESE Definition: An emerging frontier in Earth system science is the interaction of ecological,  

E-Print Network [OSTI]

Eco-Hydro-Climate Science/Engineering in SESE Definition: An emerging frontier in Earth system that are `retooled' to treat the coupled eco-hydro-climate system. Arid and semiarid regions (deserts) are a fruitful Southwest is thus an ideal laboratory for eco-hydro-climate studies and provides several case studies

Rhoads, James

424

A FULLY COUPLED THERMO-HYDRO MECHANICAL ANALYSIS OF THE IMPACT OF TEMPERATURE AND HUMIDITY VARIATION ON THE STATE OF HISTORICAL STONE  

E-Print Network [OSTI]

A FULLY COUPLED THERMO-HYDRO MECHANICAL ANALYSIS OF THE IMPACT OF TEMPERATURE AND HUMIDITY Keywords: Thermo-hydro-mechanical coupling, modelling, inverse problem, tuffeau, monument, in situ measures initiation and growth due to the variation of climate conditions; thermo-hydro-mechanical incompatibility

Paris-Sud XI, Université de

425

DEVELOPMENT OF SOLAR DRIVEN ABSORPTION AIR CONDITIONERS AND HEAT PUMPS  

E-Print Network [OSTI]

DRIVEN ABSORPTION AIR CONDITIONERS AND HEAT PUMPS K. Dao, M.ABSORPTION AIR CONDITIONERS AND HEAT PUMPS* K. DAO, M.

Dao, K.

2013-01-01T23:59:59.000Z

426

Concentrating Solar Power - Molten Salt Pump Development, Final Technical Report (Phase 1)  

SciTech Connect (OSTI)

The purpose of this project is to develop a long shafted pump to operate at high temperatures for the purpose of producing energy with renewable resources. In Phase I of this three phase project we developed molten salt pump requirements, evaluated existing hardware designs for necessary modifications, developed a preliminary design of the pump concept, and developed refined cost estimates for Phase II and Phase III of the project. The decision has been made not to continue the project into Phases II and III. There is an ever increasing world-wide demand for sources of energy. With only a limited supply of fossil fuels, and with the costs to obtain and produce those fuels increasing, sources of renewable energy must be found. Currently, capturing the sun's energy is expensive compared to heritage fossil fuel energy production. However, there are government requirements on Industry to increase the amount of energy generated from renewable resources. The objective of this project is to design, build and test a long-shafted, molten salt pump. This is the type of pump necessary for a molten salt thermal storage system in a commercial-scale solar trough plant. This project is under the Department of Energy (DOE) Solar Energy Technologies Program, managed by the Office of Energy Efficiency and Renewable Energy. To reduce the levelized cost of energy (LCOE), and to meet the requirements of 'tomorrows' demand, technical innovations are needed. The DOE is committed to reducing the LCOE to 7-10 cents/kWh by 2015, and to 5-7 cents/kWh by 2020. To accomplish these goals, the performance envelope for commercial use of long-shafted molten salt pumps must be expanded. The intent of this project is to verify acceptable operation of pump components in the type of molten salt (thermal storage medium) used in commercial power plants today. Field testing will be necessary to verify the integrity of the pump design, and thus reduce the risk to industry. While the primary goal is to design a pump for a trough solar power plant system, the intent is for the design to be extensible to a solar power tower application. This can be accomplished by adding pumping stages to increase the discharge pressure to the levels necessary for a solar power tower application. This report incorporates all available conceptual design information completed for this project in Phase I.

Michael McDowell; Alan Schwartz

2010-03-31T23:59:59.000Z

427

Screw-fed pump system  

DOE Patents [OSTI]

A pump system includes a pump that includes a first belt and a second belt that are spaced apart from each other to provide generally straight sides of a passage there between. There is an inlet at one end of the passage and an outlet at an opposite end of the passage, with a passage length that extends between the inlet and the outlet. The passage defines a gap distance in a width direction between the straight sides at the passage inlet. A hopper includes an interior space that terminates at a mouth at the passage inlet. At least one screw is located within the interior space of the hopper and includes a screw diameter in the width direction that is less than or equal to the gap distance.

Sprouse, Kenneth M

2014-11-25T23:59:59.000Z

428

Pump and centrifugal separator apparatus  

SciTech Connect (OSTI)

The invention relates to agitating means for preventing the accumulation of particulate matter at the contaminate outlet orifices in a pump and centrifugal separator apparatus. The pump separator apparatus includes a rotatable casing forming a chamber for centrifugally separating the oil, water and contaminant matter in an oil well production fluid. The clean oil is collected by a stationary pitot tube in the chamber, the clean water is drawn off at an outlet port near the outer periphery of the chamber, and the dirty water and contaminants are discharged through outlet orifices formed in the outer wall of the casing. The agitating means includes rotating jet ports for directing streams of pressurized fluid tangentially along the inner surface of the casing to agitate accumulations of separated solid contaminant matter thereby preventing the clogging of the outlet orifices.

Erickson, J.W.

1981-08-11T23:59:59.000Z

429

Supporting information Figure S1: Pump-rePump-Probe kinetics of peridinin in methanol. Peridinin was excited at  

E-Print Network [OSTI]

Supporting information Figure S1: Pump-rePump-Probe kinetics of peridinin in methanol. Peridinin was excited at 400-nm, and then repumped, at a delay of 1 ps, by pulses of 620-nm. (A) Pump-Probe (blue), Pump-rePump. The inset zooms on the repump. (C): Pump-Probe (blue) and Pump-rePump-Probe (red) and (D) OD (black) spectra

van Stokkum, Ivo

430

Self-pumping impurity control  

DOE Patents [OSTI]

It is an object of the present invention to provide an apparatus for removing impurities from the plasma in a fusion reactor without an external vacuum pumping system. It is also an object of the present invention to provide an apparatus for removing the helium ash from a fusion reactor. It is another object of the present invention to provide an apparatus which removes helium ash and minimizes tritium recycling and inventory.

Brooks, J.N.; Mattas, R.F.

1983-12-21T23:59:59.000Z

431

Heat pumps | 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:Greer CountyCorridorPart A PermitValles Caldera, New Mexico |pumps

432

Increasing positive displacement charging pump reliability  

SciTech Connect (OSTI)

The use of positive displacement pumps in many PWRs is an integral part of providing reactivity control via the Chemical and Volume Control system. This usually requires the continuous operation of at least one pump, typically with a flow rate of 44 gpm {at} 2,310 psig (167 lpm {at} 160 bar). Some PWRs use multiple pumps, and vary the letdown, while others use variable speed pumps. Regardless, the charging pumps run continuously. With the amount of reciprocating mass, differential pressure, and friction, it is a battle to maintain the pumps in peak operating condition for long periods of time. This paper will show how Entergy Operations` Waterford 3 SES was able to increase the reliability of the positive displacement Charging Pumps. Many different solutions were evaluated, and several adopted. The results are undeniable, as availability has increased and O and M costs have been reduced by 90% over 6 years.

Wade, J.H. III [Entergy Operations, Inc., Killona, LA (United States)

1996-08-01T23:59:59.000Z

433

Submersible canned motor transfer pump  

DOE Patents [OSTI]

A transfer pump used in a waste tank for transferring high-level radioactive liquid waste from a waste tank and having a column assembly, a canned electric motor means, and an impeller assembly with an upper impeller and a lower impeller connected to a shaft of a rotor assembly. The column assembly locates a motor housing with the electric motor means adjacent to the impeller assembly which creates an hydraulic head, and which forces the liquid waste, into the motor housing to cool the electric motor means and to cool and/or lubricate the radial and thrust bearing assemblies. Hard-on-hard bearing surfaces of the bearing assemblies and a ring assembly between the upper impeller and electric motor means grind large particles in the liquid waste flow. Slots in the static bearing member of the radial bearing assemblies further grind down the solid waste particles so that only particles smaller than the clearances in the system can pass therethrough, thereby resisting damage to and the interruption of the operation of the transfer pump. The column assembly is modular so that sections can be easily assembled, disassembled and/or removed. A second embodiment employs a stator jacket which provides an alternate means for cooling the electric motor means and lubricating and/or cooling the bearing assemblies, and a third embodiment employs a variable level suction device which allows liquid waste to be drawn into the transfer pump from varying and discrete levels in the waste tank.

Guardiani, Richard F. (Ohio Township, Allegheny County, PA); Pollick, Richard D. (Sarver, PA); Nyilas, Charles P. (Monroeville, PA); Denmeade, Timothy J. (Lower Burrell, PA)

1997-01-01T23:59:59.000Z

434

What does it take to create a clean energy future for Washington? Solar, Wind, Hydro  

E-Print Network [OSTI]

Solar, Wind, Hydro A Complete Energy System Home and Commercial Generation Demand Response 10-10 m 10's leadership and economic advantages in clean energy. - The mission of the Clean Energy Institute is to accelerate the adoption of a clean energy future by advancing next generation solar energy and electrical

Hochberg, Michael

435

HESSD '98 17 Safety concerns at Ontario Hydro: The need for safety  

E-Print Network [OSTI]

HESSD '98 17 Safety concerns at Ontario Hydro: The need for safety management through incident analysis and safety assessment John D. Lee Battelle Seattle Research Center 4000 NE 41st Street Seattle, WA Engineering University of Toronto benfica@mie.utoronto.ca Safety management and the long-term operation

Lee, John D.

436

Hydro-Mechanical Loading and Compressibility of Fibrous Media for Resin Infusion Processes  

E-Print Network [OSTI]

1 Hydro-Mechanical Loading and Compressibility of Fibrous Media for Resin Infusion Processes P investigating the compressibility behaviour of composite preform with a view of modelling resin infusion Infusion The need for manufacturing large composite parts in the aeronautic industry is ever increasing

Paris-Sud XI, Université de

437

Hydro: A Hybrid Routing Protocol for Low-Power and Lossy Networks  

E-Print Network [OSTI]

1 Hydro: A Hybrid Routing Protocol for Low-Power and Lossy Networks Stephen Dawson-based traffic, or optimize for point-to-point traffic in a homogeneous network. As these networks become more by the resource constraints of low-power and lossy networks (L2Ns). Our design leverages the predominantly two

California at Berkeley, University of

438

A model for dynamic chance constraints in hydro power reservoir management  

E-Print Network [OSTI]

A model for dynamic chance constraints in hydro power reservoir management L. Andrieu , R. Henrion In this paper, a model for (joint) dynamic chance constraints is proposed and ap- plied to an optimization for two and three stages. 1 Introduction A conventional optimization problem under chance constraints

Römisch, Werner

439

EIS-0141: Washington Water Power/B.C. Hydro Transmission Interconnection Project  

Broader source: Energy.gov [DOE]

The U.S. Department of Energy developed this statement to evaluate the environmental impacts of constructing and operating a double-circuit 230-kilovolt electrical transmission line that would link the electrical systems of the Washington Water Power Company and the British Columbia Hydro and Power Authority.

440

Geek-Up[04.01.2011]: Charting Wind, Thermal, Hydro Generation  

Broader source: Energy.gov [DOE]

Check out Bonneville Power Administration’s new near real-time energy monitoring – it displays the output of all wind, thermal and hydro generation in the agency’s balancing authority against its load. Updated every five minutes, it’s a great resource for universities, research laboratories and other utilities.

Note: This page contains sample records for the topic "hydro pumped storage" 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

Heat storage duration  

SciTech Connect (OSTI)

Both the amount and duration of heat storage in massive elements of a passive building are investigated. Data taken for one full winter in the Balcomb solar home are analyzed with the aid of sub-system simulation models. Heat storage duration is tallied into one-day intervals. Heat storage location is discussed and related to overall energy flows. The results are interpreted and conclusions drawn.

Balcomb, J.D.

1981-01-01T23:59:59.000Z

442

Design and installation manual for thermal energy storage  

SciTech Connect (OSTI)

The purpose of this manual is to provide information on the design and installation of thermal energy storage in active solar systems. It is intended for contractors, installers, solar system designers, engineers, architects, and manufacturers who intend to enter the solar energy business. The reader should have general knowledge of how solar heating and cooling systems operate and knowledge of construction methods and building codes. Knowledge of solar analysis methods such as f-Chart, SOLCOST, DOE-1, or TRNSYS would be helpful. The information contained in the manual includes sizing storage, choosing a location for the storage device, and insulation requirements. Both air-based and liquid-based systems are covered with topics on designing rock beds, tank types, pump and fan selection, installation, costs, and operation and maintenance. Topics relevant to latent heat storage include properties of phase-change materials, sizing the storage unit, insulating the storage unit, available systems, and cost. Topics relevant to heating domestic water include safety, single- and dual-tank systems, domestic water heating with air- and liquid-based space heating systems, and stand alone domestics hot water systems. Several appendices present common problems with storage systems and their solutions, heat transfer fluid properties, economic insulation thickness, heat exchanger sizing, and sample specifications for heat exchangers, wooden rock bins, steel tanks, concrete tanks, and fiberglass-reinforced plastic tanks.

Cole, R L; Nield, K J; Rohde, R R; Wolosewicz, R M

1980-01-01T23:59:59.000Z

443

Heat Pump Water Heaters and American Homes: A Good Fit?  

E-Print Network [OSTI]

an electric resistance storage water heater (ESWH) with tankof total electric storage water heater shipments in the nextelectric resistance storage water heaters. The rated storage

Franco, Victor

2011-01-01T23:59:59.000Z

444

Building Trust in Storage Outsourcing: Secure Accounting of Utility Storage  

E-Print Network [OSTI]

Building Trust in Storage Outsourcing: Secure Accounting of Utility Storage Vishal Kher Yongdae Kim players. While storage outsourcing is cost-effective, many companies are hesitating to outsource their storage due to security concerns. The success of storage outsourcing is highly dependent on how well

Minnesota, University of

445

SUPERCONDUCTING MAGNETIC ENERGY STORAGE  

E-Print Network [OSTI]

and R. W . BOOIll, "Superconductive Energy Storage Inducand H. A. Peterson, "Superconductive E nergy S torage forMeeting, Janua ry N. Mohan, "Superconductive Energy S torage

Hassenzahl, W.

2011-01-01T23:59:59.000Z

446

Energy Storage and Transportation  

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

Storage and Transportation INL Logo Search Skip Navigation Links Home Newsroom About INL Careers Research Programs Energy and Environment National and Homeland Security New Energy...

447

HEATS: Thermal Energy Storage  

SciTech Connect (OSTI)

HEATS Project: The 15 projects that make up ARPA-E’s HEATS program, short for “High Energy Advanced Thermal Storage,” seek to develop revolutionary, cost-effective ways to store thermal energy. HEATS focuses on 3 specific areas: 1) developing high-temperature solar thermal energy storage capable of cost-effectively delivering electricity around the clock and thermal energy storage for nuclear power plants capable of cost-effectively meeting peak demand, 2) creating synthetic fuel efficiently from sunlight by converting sunlight into heat, and 3) using thermal energy storage to improve the driving range of electric vehicles (EVs) and also enable thermal management of internal combustion engine vehicles.

None

2012-01-01T23:59:59.000Z

448

SUPERCONDUCTING MAGNETIC ENERGY STORAGE  

E-Print Network [OSTI]

Design of the BPA Superconducting 30-MJ Energy Storagefor a Utility Scale Superconducting Magnetic Energy Storagefor a Lnrge Scale Superconducting Magnetic Energy Storage

Hassenzahl, W.

2011-01-01T23:59:59.000Z

449

Development and Validation of a Gas-Fired Residential Heat Pump Water Heater - Final Report  

SciTech Connect (OSTI)

For gas-fired residential water heating, the U.S. and Canada is predominantly supplied by minimum efficiency storage water heaters with Energy Factors (EF) in the range of 0.59 to 0.62. Higher efficiency and higher cost ($700 - $2,000) options serve about 15% of the market, but still have EFs below 1.0, ranging from 0.65 to 0.95. To develop a new class of water heating products that exceeds the traditional limit of thermal efficiency, the project team designed and demonstrated a packaged water heater driven by a gas-fired ammonia-water absorption heat pump. This gas-fired heat pump water heater can achieve EFs of 1.3 or higher, at a consumer cost of $2,000 or less. Led by Stone Mountain Technologies Inc. (SMTI), with support from A.O. Smith, the Gas Technology Institute (GTI), and Georgia Tech, the cross-functional team completed research and development tasks including cycle modeling, breadboard evaluation of two cycles and two heat exchanger classes, heat pump/storage tank integration, compact solution pump development, combustion system specification, and evaluation of packaged prototype GHPWHs. The heat pump system extracts low grade heat from the ambient air and produces high grade heat suitable for heating water in a storage tank for domestic use. Product features that include conventional installation practices, standard footprint and reasonable economic payback, position the technology to gain significant market penetration, resulting in a large reduction of energy use and greenhouse gas emissions from domestic hot water production.

Michael Garrabrant; Roger Stout; Paul Glanville; Janice Fitzgerald; Chris Keinath

2013-01-21T23:59:59.000Z

450

1 BASEMENT STORAGE 3 MICROSCOPE LAB  

E-Print Network [OSTI]

MECHANICAL ROOM 13 SHOWER ROOMSAIR COMPRESSOR 14 NITROGEN STORAGE 15 DIESEL FUEL STORAGE 16 ACID NEUT. TANK 17a ACID STORAGE 17b INERT GAS STORAGE 17c BASE STORAGE 17d SHELVES STORAGE * KNOCK-OUT PANEL

Boonstra, Rudy

451

Aquifer thermal energy storage. International symposium: Proceedings  

SciTech Connect (OSTI)

Aquifers have been used to store large quantities of thermal energy to supply process cooling, space cooling, space heating, and ventilation air preheating, and can be used with or without heat pumps. Aquifers are used as energy sinks and sources when supply and demand for energy do not coincide. Aquifer thermal energy storage may be used on a short-term or long-term basis; as the sole source of energy or as a partial storage; at a temperature useful for direct application or needing upgrade. The sources of energy used for aquifer storage are ambient air, usually cold winter air; waste or by-product energy; and renewable energy such as solar. The present technical, financial and environmental status of ATES is promising. Numerous projects are operating and under development in several countries. These projects are listed and results from Canada and elsewhere are used to illustrate the present status of ATES. Technical obstacles have been addressed and have largely been overcome. Cold storage in aquifers can be seen as a standard design option in the near future as it presently is in some countries. The cost-effectiveness of aquifer thermal energy storage is based on the capital cost avoidance of conventional chilling equipment and energy savings. ATES is one of many developments in energy efficient building technology and its success depends on relating it to important building market and environmental trends. This paper attempts to provide guidance for the future implementation of ATES. Individual projects have been processed separately for entry onto the Department of Energy databases.

NONE

1995-05-01T23:59:59.000Z

452

Storage depot for radioactive material  

DOE Patents [OSTI]

Vertical drilling of cylindrical holes in the soil, and the lining of such holes, provides storage vaults called caissons. A guarded depot is provided with a plurality of such caissons covered by shielded closures preventing radiation from penetrating through any linear gap to the atmosphere. The heat generated by the radioactive material is dissipated through the vertical liner of the well into the adjacent soil and thus to the ground surface so that most of the heat from the radioactive material is dissipated into the atmosphere in a manner involving no significant amount of biologically harmful radiation. The passive cooling of the radioactive material without reliance upon pumps, personnel, or other factor which might fail, constitutes one of the most advantageous features of this system. Moreover this system is resistant to damage from tornadoes or earthquakes. Hermetically sealed containers of radioactive material may be positioned in the caissons. Loading vehicles can travel throughout the depot to permit great flexibility of loading and unloading radioactive materials. Radioactive material can be shifted to a more closely spaced caisson after ageing sufficiently to generate much less heat. The quantity of material stored in a caisson is restricted by the average capacity for heat dissipation of the soil adjacent such caisson.

Szulinski, Milton J. (Richland, WA)

1983-01-01T23:59:59.000Z

453

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network [OSTI]

The Legalization of Ground Water Storage," Water Resourcesprocedure to above ground storage of heat in huge insulatedthis project is heat storage in ground-water regions storage

Authors, Various

2011-01-01T23:59:59.000Z

454

Sandia National Laboratories: Batteries & Energy Storage Publications  

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

StorageBatteries & Energy Storage Publications Batteries & Energy Storage Publications Batteries & Energy Storage Fact Sheets Achieving Higher Energy Density in Flow Batteries at...

455

Energy storage capacitors  

SciTech Connect (OSTI)

The properties of capacitors are reviewed in general, including dielectrics, induced polarization, and permanent polarization. Then capacitance characteristics are discussed and modelled. These include temperature range, voltage, equivalent series resistance, capacitive reactance, impedance, dissipation factor, humidity and frequency effects, storage temperature and time, and lifetime. Applications of energy storage capacitors are then discussed. (LEW)

Sarjeant, W.J.

1984-01-01T23:59:59.000Z

456

La dynamique de communication entre Hydro-Qubec et les Innus dans le cadre du projet de la Romaine  

E-Print Network [OSTI]

La dynamique de communication entre Hydro-Québec et les Innus dans le cadre du projet de la Romaine Fortin, 2014 #12;#12;iii Résumé Le mémoire porte sur la dynamique de communication entre Hydro-Québec et, composées dInnus et de représentants dHydro-Québec, et dont le rôle est de gérer les fonds. De plus, le

457

The ABCs of pump selection for mine dewatering  

SciTech Connect (OSTI)

Choosing the right type of pump for removing water from mine operations can provide significant benefits in overall performance and cost of operation. The article describes the types of pump most commonly used: vertical turbine pumps, electric and hydraulic submersible pumps, horizontal multistage centrifugal pumps and horizontal single-stage centrifugal pumps. It gives points to consider when selecting a suitable pump, including solids handling capacity and acid content, portability, automatic operation, easy maintenance and parts availability. 1 photo.

Morgan, S.E.

2008-10-15T23:59:59.000Z

458

Submersible canned motor transfer pump  

DOE Patents [OSTI]

A transfer pump is described which is used in a waste tank for transferring high-level radioactive liquid waste from a waste tank and having a column assembly, a canned electric motor means, and an impeller assembly with an upper impeller and a lower impeller connected to a shaft of a rotor assembly. The column assembly locates a motor housing with the electric motor means adjacent to the impeller assembly which creates an hydraulic head, and which forces the liquid waste, into the motor housing to cool the electric motor means and to cool and/or lubricate the radial and thrust bearing assemblies. Hard-on-hard bearing surfaces of the bearing assemblies and a ring assembly between the upper impeller and electric motor means grind large particles in the liquid waste flow. Slots in the static bearing member of the radial bearing assemblies further grind down the solid waste particles so that only particles smaller than the clearances in the system can pass there through, thereby resisting damage to and the interruption of the operation of the transfer pump. The column assembly is modular so that sections can be easily assembled, disassembled and/or removed. A second embodiment employs a stator jacket which provides an alternate means for cooling the electric motor means and lubricating and/or cooling the bearing assemblies, and a third embodiment employs a variable level suction device which allows liquid waste to be drawn into the transfer pump from varying and discrete levels in the waste tank. 17 figs.

Guardiani, R.F.; Pollick, R.D.; Nyilas, C.P.; Denmeade, T.J.

1997-08-19T23:59:59.000Z

459

Gas Storage Technology Consortium  

SciTech Connect (OSTI)

Gas storage is a critical element in the natural gas industry. Producers, transmission & distribution companies, marketers, and end users all benefit directly from the load balancing function of storage. The unbundling process has fundamentally changed the way storage is used and valued. As an unbundled service, the value of storage is being recovered at rates that reflect its value. Moreover, the marketplace has differentiated between various types of storage services, and has increasingly rewarded flexibility, safety, and reliability. The size of the natural gas market has increased and is projected to continue to increase towards 30 trillion cubic feet (TCF) over the next 10 to 15 years. Much of this increase is projected to come from electric generation, particularly peaking units. Gas storage, particularly the flexible services that are most suited to electric loads, is critical in meeting the needs of these new markets. In order to address the gas storage needs of the natural gas industry, an industry-driven consortium was created--the Gas Storage Technology Consortium (GSTC). The objective of the GSTC is to provide a means to accomplish industry-driven research and development designed to enhance operational flexibility and deliverability of the Nation's gas storage system, and provide a cost effective, safe, and reliable supply of natural gas to meet domestic demand. This report addresses the activities for the quarterly period of April 1 to June 30, 2006. Key activities during this time period include: (1) Develop and process subcontract agreements for the eight projects selected for cofunding at the February 2006 GSTC Meeting; (2) Compiling and distributing the three 2004 project final reports to the GSTC Full members; (3) Develop template, compile listserv, and draft first GSTC Insider online newsletter; (4) Continue membership recruitment; (5) Identify projects and finalize agenda for the fall GSTC/AGA Underground Storage Committee Technology Transfer Workshop in San Francisco, CA; and (6) Identify projects and prepare draft agenda for the fall GSTC Technology Transfer Workshop in Pittsburgh, PA.

Joel L. Morrison; Sharon L. Elder

2006-07-06T23:59:59.000Z

460

Absorption-heat-pump system  

DOE Patents [OSTI]

An improvement in an absorption heat pump cycle is obtained by adding adiabatic absorption and desorption steps to the absorber and desorber of the system. The adiabatic processes make it possible to obtain the highest temperature in the absorber before any heat is removed from it and the lowest temperature in the desorber before heat is added to it, allowing for efficient utilization of the thermodynamic availability of the heat supply stream. The improved system can operate with a larger difference between high and low working fluid concentrations, less circulation losses, and more efficient heat exchange than a conventional system.

Grossman, G.; Perez-Blanco, H.

1983-06-16T23:59:59.000Z

Note: This page contains sample records for the topic "hydro pumped storage" 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

Pump Systems Optimization: Energy Efficiency  

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.pdfMarket37963 Vol. 79,Department of Energy 2-pagePump

462

Transport and Dissipation in Quantum Pumps  

E-Print Network [OSTI]

This paper is about adiabatic transport in quantum pumps. The notion of ``energy shift'', a self-adjoint operator dual to the Wigner time delay, plays a role in our approach: It determines the current, the dissipation, the noise and the entropy currents in quantum pumps. We discuss the geometric and topological content of adiabatic transport and show that the mechanism of Thouless and Niu for quantized transport via Chern numbers cannot be realized in quantum pumps where Chern numbers necessarily vanish.

J. E. Avron; A. Elgart; G. M. Graf; L. Sadun

2003-05-23T23:59:59.000Z

463

Industrial heat pumps - types and costs  

SciTech Connect (OSTI)

Confusion about energy savings and economics is preventing many potentially beneficial applications for industrial heat pumps. The variety of heat pumps available and the lack of a standard rating system cause some of this confusion. The authors illustrate how a simple categorization based on coefficient of performance (COP) can compare the cost of recovering waste energy with heat pumps. After evaluating examples in which the cost of energy delivered was calculated based on estimates of capital cost, operating costs, and maintenance costs, they compare heat pumps from the various categories on the basis of economics. 6 references, 6 figures, 1 table.

Chappell, R.N.; Bliem, C.J. Jr.; Mills, J.I.; Demuth, O.J.; Plaster, D.S.

1985-08-01T23:59:59.000Z

464

Residential Geothermal Heat Pump Retrofit Webinar  

Broader source: Energy.gov [DOE]

A webinar by National Renewable Energy Laboratory Senior Engineer Erin Anderson about geothermal heat pump (GHP) technology options, applications, and installation costs for residences.

465

Method and system for small scale pumping  

DOE Patents [OSTI]

The present invention relates generally to the field of small scale pumping and, more specifically, to a method and system for very small scale pumping media through microtubes. One preferred embodiment of the invention generally comprises: method for small scale pumping, comprising the following steps: providing one or more media; providing one or more microtubes, the one or more tubes having a first end and a second end, wherein said first end of one or more tubes is in contact with the media; and creating surface waves on the tubes, wherein at least a portion of the media is pumped through the tube.

Insepov, Zeke (Darien, IL); Hassanein, Ahmed (Bolingbrook, IL)

2010-01-26T23:59:59.000Z

466

Natural Refrigerant (R-729) Heat Pump  

Energy Savers [EERE]

Manufactured in the U.S. 2 Problem Statement * Current commercial and industrial heat pumps - Poor coefficient of performance (COP) at low temperatures * HFC refrigerant...

467

Optimization Online - Boosting the Feasibility Pump  

E-Print Network [OSTI]

Jan 22, 2012 ... Boosting the Feasibility Pump. Natashia L. Boland(natashia.boland ***at*** newcastle.edu.au) Andrew C. Eberhard(andy.eb ***at*** ...

Natashia L. Boland

2012-01-22T23:59:59.000Z

468

Centrifugal pumps design and application. Second edition  

SciTech Connect (OSTI)

This book is a practical textbook stressing hydraulic design, that could be of hands-on use to the pump designer, student, and rotating equipment engineer. Although feedback from readers indicates that we achieved our desired goal, we did recognize that we had omitted several important topics. We had the little about the design of chemical pumps and touched only lightly on the extensive range of composite materials and the manufacturing techniques used in nonmetallic pump applications. We had totally ignored the subject of mechanical seals, yet we fully recognized that a knowledge of seal fundamentals and theory of operation is essential to the pump designer and rotating equipment engineer. Another major omission was the subject of vibration and noise in centrifugal pumps. With today's high energy pumps operating at ever increasing speeds, it is essential that we understand the sources of pump noise and causes of vibration that result from installation, application, cavitation, pulsation, or acoustic resonance. Although we had touched lightly on rotor dynamics, we felt this subject deserved to be expanded, particularly in the areas of bearing stiffness and damping, seal effects, and the evaluation of critical speed calculations. Finally, we had the nothing about the knowledge necessary to extend pump life during installation and operation, which requires a deep understanding of bearings, lubrication, mechanical seal reliability, and the external alignment of pump and driver.

Lobanoff, V.S.; Ross, R.R.

1992-01-01T23:59:59.000Z

469

Geometry, Statistics and Asymptotics of Quantum Pumps  

E-Print Network [OSTI]

We give a pedestrian interpretation of a formula of Buttiker et. al. (BPT) relating the adiabatically pumped current to the S matrix and its (time) derivatives. We relate the charge in BPT to Berry's phase and the corresponding Brouwer pumping formula to curvature. As applications we derive explicit formulas for the joint probability density of pumping and conductance when the S matrix is uniformly distributed; and derive a new formula that describes hard pumping when the S matrix is periodic in the driving parameters.

J. E. Avron; A. Elgart; G. M. Graf; L. Sadun

2000-05-31T23:59:59.000Z

470

Multiple moving wall dry coal extrusion pump  

DOE Patents [OSTI]

A pump for transporting particulate material includes a passageway defined on each side between an inlet and an outlet by a moving wall.

Fitzsimmons, Mark Andrew

2013-05-14T23:59:59.000Z

471

Submersible canned motor mixer pump  

DOE Patents [OSTI]

A mixer pump used in a waste tank for mobilizing high-level radioactive liquid waste having a column assembly containing power cables, a motor housing with electric motor means which includes a stator can of a stator assembly and a rotor can of a rotor assembly, and an impeller assembly with an impeller connected to a shaft of the rotor assembly. The column assembly locates the motor housing with the electric motor means adjacent to the impeller which creates an hydraulic head, and which forces the liquid waste into the motor housing to cool the electric motor means and to lubricate radial and thrust bearing assemblies. Hard-on-hard bearing surfaces of the bearing assemblies and a ring assembly between the impeller and electric motor means act to grind down large particles in the liquid waste flow. These larger particles are received in slots in the static bearing members of the radial bearing assemblies. Only solid waste particles smaller than the clearances in the system can pass therethrough, thereby resisting damage to and the interruption of the operation of the mixer pump.

Guardiani, Richard F. (Ohio Township, PA); Pollick, Richard D. (Sarver, PA)

1997-01-01T23:59:59.000Z

472

Submersible canned motor mixer pump  

DOE Patents [OSTI]

A mixer pump is described used in a waste tank for mobilizing high-level radioactive liquid waste having a column assembly containing power cables, a motor housing with electric motor means which includes a stator can of a stator assembly and a rotor can of a rotor assembly, and an impeller assembly with an impeller connected to a shaft of the rotor assembly. The column assembly locates the motor housing with the electric motor means adjacent to the impeller which creates an hydraulic head, and which forces the liquid waste into the motor housing to cool the electric motor means and to lubricate radial and thrust bearing assemblies. Hard-on-hard bearing surfaces of the bearing assemblies and a ring assembly between the impeller and electric motor means act to grind down large particles in the liquid waste flow. These larger particles are received in slots in the static bearing members of the radial bearing assemblies. Only solid waste particles smaller than the clearances in the system can pass there through, thereby resisting damage to and the interruption of the operation of the mixer pump. 10 figs.

Guardiani, R.F.; Pollick, R.D.

1997-10-07T23:59:59.000Z

473

Ultrafine hydrogen storage powders  

DOE Patents [OSTI]

A method of making hydrogen storage powder resistant to fracture in service involves forming a melt having the appropriate composition for the hydrogen storage material, such, for example, LaNi.sub.5 and other AB.sub.5 type materials and AB.sub.5+x materials, where x is from about -2.5 to about +2.5, including x=0, and the melt is gas atomized under conditions of melt temperature and atomizing gas pressure to form generally spherical powder particles. The hydrogen storage powder exhibits improved chemcial homogeneity as a result of rapid solidfication from the melt and small particle size that is more resistant to microcracking during hydrogen absorption/desorption cycling. A hydrogen storage component, such as an electrode for a battery or electrochemical fuel cell, made from the gas atomized hydrogen storage material is resistant to hydrogen degradation upon hydrogen absorption/desorption that occurs for example, during charging/discharging of a battery. Such hydrogen storage components can be made by consolidating and optionally sintering the gas atomized hydrogen storage powder or alternately by shaping the gas atomized powder and a suitable binder to a desired configuration in a mold or die.

Anderson, Iver E. (Ames, IA); Ellis, Timothy W. (Doylestown, PA); Pecharsky, Vitalij K. (Ames, IA); Ting, Jason (Ames, IA); Terpstra, Robert (Ames, IA); Bowman, Robert C. (La Mesa, CA); Witham, Charles K. (Pasadena, CA); Fultz, Brent T. (Pasadena, CA); Bugga, Ratnakumar V. (Arcadia, CA)

2000-06-13T23:59:59.000Z

474

6: A Second Pumping Theorem The pumping theorem we saw previously was  

E-Print Network [OSTI]

6: A Second Pumping Theorem The pumping theorem we saw previously was: Theorem 1 Let L â?? 0: We can also prove a stronger pumping theorem (Ex. 2.6.4): Theorem 2 Let M = (K; \\Sigma; ffi; s; F. jxyj Ÿ jKj: 3. y 6= e: 4. 8n â?? 0; xy n z 2 L(M ) This second pumping theorem permits us to prove

Golin, Mordecai J.

475

Performance analysis of solar-assisted chemical heat-pump dryer  

SciTech Connect (OSTI)

A solar-assisted chemical heat-pump dryer has been designed, fabricated and tested. The performance of the system has been studied under the meteorological conditions of Malaysia. The system consists of four main components: solar collector (evacuated tubes type), storage tank, solid-gas chemical heat pump unit and dryer chamber. A solid-gas chemical heat pump unit consists of reactor, condenser and evaporator. The reaction used in this study (CaCl2-NH{sub 3}). A simulation has been developed, and the predicted results are compared with those obtained from experiments. The maximum efficiency for evacuated tubes solar collector of 80% has been predicted against the maximum experiment of 74%. The maximum values of solar fraction from the simulation and experiment are 0.795 and 0.713, respectively, whereas the coefficient of performance of chemical heat pump (COP{sup h}) maximum values 2.2 and 2 are obtained from simulation and experiments, respectively. The results show that any reduction of energy at condenser as a result of the decrease in solar radiation will decrease the coefficient of performance of chemical heat pump as well as decrease the efficiency of drying. (author)

Fadhel, M.I. [Solar Energy Research Institute, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor (Malaysia); Faculty of Engineering and Technology, Multimedia University, Jalan Ayer Keroh Lama, 75450, Melaka (Malaysia); Sopian, K.; Daud, W.R.W. [Solar Energy Research Institute, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor (Malaysia)

2010-11-15T23:59:59.000Z

476

Remediation of MTBE in groundwater: A case where pump-and-treat works  

SciTech Connect (OSTI)

Two case studies are discussed in which groundwater pumping reduced levels of dissolved methyl tertiary butyl ether (MTBE) in groundwater by more than two orders of magnitude, in some cases to below detection limits. MTBE contamination in groundwater is becoming an important issue due to the increasing prevalence and regulation of this gasoline additive. In addition, MTBE is more mobile in groundwater than most hydrocarbons, so it is usually the first gasoline constituent to reach sensitive receptors. Since its Henry`s constant is low, in situ removal of MTBE from groundwater by air sparging is slow, and MTBE does not rapidly degrade, either biologically or abiotically. Therefore, groundwater pumping is usually employed to contain and collect MTBE-contaminated groundwater. Pumping groundwater can reduce MME levels to below detection limits within a few years, because MTBE in the subsurface is found mostly dissolved in groundwater. In contrast, the more hydrophobic gasoline hydrocarbons exist mostly in pockets of separate phase material and adsorbed to soil particles and dissolve slowly in groundwater. Hydrocarbon concentrations are rarely reduced to closure levels within a reasonable time frame by pumping. Sites in eastern Massachusetts and southern New Jersey, where groundwater was contaminated with MTBE due to releases of unleaded gasoline from underground storage tanks, are discussed. At these sites, average MTBE levels were reduced by two to three orders of magnitude, from several ppm or more to less than 10 ppb within three years by pumping groundwater at 10 to 30 gpm.

Bass, D.H.; Riley, B. [Groundwater Technology, Inc., Norwood, MA (United States); Farrell, T. [Groundwater Technology, Inc., Trenton, NJ (United States)

1994-12-31T23:59:59.000Z

477

Gas Storage Technology Consortium  

SciTech Connect (OSTI)

Gas storage is a critical element in the natural gas industry. Producers, transmission and distribution companies, marketers, and end users all benefit directly from the load balancing function of storage. The unbundling process has fundamentally changed the way storage is used and valued. As an unbundled service, the value of storage is being recovered at rates that reflect its value. Moreover, the marketplace has differentiated between various types of storage services and has increasingly rewarded flexibility, safety, and reliability. The size of the natural gas market has increased and is projected to continue to increase towards 30 trillion cubic feet (TCF) over the next 10 to 15 years. Much of this increase is projected to come from electric generation, particularly peaking units. Gas storage, particularly the flexible services that are most suited to electric loads, is crucial in meeting the needs of these new markets. To address the gas storage needs of the natural gas industry, an industry-driven consortium was created - the Gas Storage Technology Consortium (GSTC). The objective of the GSTC is to provide a means to accomplish industry-driven research and development designed to enhance the operational flexibility and deliverability of the nation's gas storage system, and provide a cost-effective, safe, and reliable supply of natural gas to meet domestic demand. This report addresses the activities for the quarterly period of January1, 2007 through March 31, 2007. Key activities during this time period included: {lg_bullet} Drafting and distributing the 2007 RFP; {lg_bullet} Identifying and securing a meeting site for the GSTC 2007 Spring Proposal Meeting; {lg_bullet} Scheduling and participating in two (2) project mentoring conference calls; {lg_bullet} Conducting elections for four Executive Council seats; {lg_bullet} Collecting and compiling the 2005 GSTC Final Project Reports; and {lg_bullet} Outreach and communications.

Joel L. Morrison; Sharon L. Elder

2007-03-31T23:59:59.000Z

478

Gas Storage Technology Consortium  

SciTech Connect (OSTI)

Gas storage is a critical element in the natural gas industry. Producers, transmission and distribution companies, marketers, and end users all benefit directly from the load balancing function of storage. The unbundling process has fundamentally changed the way storage is used and valued. As an unbundled service, the value of storage is being recovered at rates that reflect its value. Moreover, the marketplace has differentiated between various types of storage services and has increasingly rewarded flexibility, safety, and reliability. The size of the natural gas market has increased and is projected to continue to increase towards 30 trillion cubic feet over the next 10 to 15 years. Much of this increase is projected to come from electric generation, particularly peaking units. Gas storage, particularly the flexible services that are most suited to electric loads, is crucial in meeting the needs of these new markets. To address the gas storage needs of the natural gas industry, an industry-driven consortium was created--the Gas Storage Technology Consortium (GSTC). The objective of the GSTC is to provide a means to accomplish industry-driven research and development designed to enhance the operational flexibility and deliverability of the nation's gas storage system, and provide a cost-effective, safe, and reliable supply of natural gas to meet domestic demand. This report addresses the activities for the quarterly period of April 1, 2007 through June 30, 2007. Key activities during this time period included: (1) Organizing and hosting the 2007 GSTC Spring Meeting; (2) Identifying the 2007 GSTC projects, issuing award or declination letters, and begin drafting subcontracts; (3) 2007 project mentoring teams identified; (4) New NETL Project Manager; (5) Preliminary planning for the 2007 GSTC Fall Meeting; (6) Collecting and compiling the 2005 GSTC project final reports; and (7) Outreach and communications.

Joel L. Morrison; Sharon L. Elder

2007-06-30T23:59:59.000Z

479

Gas Storage Technology Consortium  

SciTech Connect (OSTI)

Gas storage is a critical element in the natural gas industry. Producers, transmission and distribution companies, marketers, and end users all benefit directly from the load balancing function of storage. The unbundling process has fundamentally changed the way storage is used and valued. As an unbundled service, the value of storage is being recovered at rates that reflect its value. Moreover, the marketplace has differentiated between various types of storage services, and has increasingly rewarded flexibility, safety, and reliability. The size of the natural gas market has increased and is projected to continue to increase towards 30 trillion cubic feet (TCF) over the next 10 to 15 years. Much of this increase is projected to come from electric generation, particularly peaking units. Gas storage, particularly the flexible services that are most suited to electric loads, is critical in meeting the needs of these new markets. In order to address the gas storage needs of the natural gas industry, an industry driven consortium was created--the Gas Storage Technology Consortium (GSTC). The objective of the GSTC is to provide a means to accomplish industry-driven research and development designed to enhance operational flexibility and deliverability of the Nation's gas storage system, and provide a cost effective, safe, and reliable supply of natural gas to meet domestic demand. This report addresses the activities for the quarterly period of April 1, 2005 through June 30, 2005. During this time period efforts were directed toward (1) GSTC administration changes, (2) participating in the American Gas Association Operations Conference and Biennial Exhibition, (3) issuing a Request for Proposals (RFP) for proposal solicitation for funding, and (4) organizing the proposal selection meeting.

Joel Morrison

2005-09-14T23:59:59.000Z

480

Gas Storage Technology Consortium  

SciTech Connect (OSTI)

Gas storage is a critical element in the natural gas industry. Producers, transmission and distribution companies, marketers, and end users all benefit directly from the load balancing function of storage. The unbundling process has fundamentally changed the way storage is used and valued. As an unbundled service, the value of storage is being recovered at rates that reflect its value. Moreover, the marketplace has differentiated between various types of storage services, and has increasingly rewarded flexibility, safety, and reliability. The size of the natural gas market has increased and is projected to continue to increase towards 30 trillion cubic feet (TCF) over the next 10 to 15 years. Much of this increase is projected to come from electric generation, particularly peaking units. Gas storage, particularly the flexible services that are most suited to electric loads, is critical in meeting the needs of these new markets. In order to address the gas storage needs of the natural gas industry, an industry-driven consortium was created--the Gas Storage Technology Consortium (GSTC). The objective of the GSTC is to provide a means to accomplish industry-driven research and development designed to enhance operational flexibility and deliverability of the Nation's gas storage system, and provide a cost effective, safe, and reliable supply of natural gas to meet domestic demand. This report addresses the activities for the quarterly period of January 1, 2006 through March 31, 2006. Activities during this time period were: (1) Organize and host the 2006 Spring Meeting in San Diego, CA on February 21-22, 2006; (2) Award 8 projects for co-funding by GSTC for 2006; (3) New members recruitment; and (4) Improving communications.

Joel L. Morrison; Sharon L. Elder

2006-05-10T23:59:59.000Z

Note: This page contains sample records for the topic "hydro pumped storage" 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
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481

Implementation of a low-cost smart grid device to prevent brownouts in village micro-hydro systems.  

E-Print Network [OSTI]

??Brownouts are a common problem in micro-hydro mini-grid systems due to the limited supply of power and the difficulty of restricting usage. The GridShare is… (more)

Quetchenbach, Thomas

2011-01-01T23:59:59.000Z

482

Ris Energy Report 5 Hydro, ocean and geothermal 4 This chapter gives an overview of the development of  

E-Print Network [OSTI]

in 2003. [1] OECD, 47% Latin America, 20% China, 11% Former USSR, 9% Other Asia, 7% Africa, 3% Non of the development of other renewable energy technologies such as hydro, ocean and geothermal. These technologies

483

Department for International Development, UK. BEST PRACTICES FOR SUSTAINABLE DEVELOPMENT OF MICRO HYDRO POWER IN DEVELOPING COUNTRIES FINAL SYNTHESIS REPORT  

E-Print Network [OSTI]

and The World Bank March 2000Front page photograph of micro hydro penstock in Peru (ITDG E3 Peru X4.007).TABLE OF CONTENTS Sources and Acknowledgements...........................................................................................vii Executive Summary................................................................................................................ix Abbreviations and Acronyms...............................................................................................xiii

Contract R; Smail Khennas; Andrew Barnett; In Association

484

Optical pumping magnetic resonance in high magnetic fields: Characterization of nuclear relaxation during pumping  

E-Print Network [OSTI]

Optical pumping magnetic resonance in high magnetic fields: Characterization of nuclear relaxation during pumping Matthew P. Augustine and Kurt W. Zilm Department of Chemistry, Yale University, New Haven exchange with optically pumped Rb vapor is investigated in high magnetic field. Operation in a high field

Augustine, Mathew P.

485

Figure 1. Schematic of initial air pump design Design of Air Pump System Using Bond Graph  

E-Print Network [OSTI]

, is presented in Figure 1. It is a vibratory pump in which an electromagnetic circuit drives a small permanent magnet attached to a pivoted lever that, in turn, drives a rubber bellows pump. The bellows pump has of the cascaded arrangement of three coupled subsystems: the electromagnetic actuator, the lever, and the air

Fernandez, Thomas

486

MERIT Pump/Probe Data OutlineOutline  

E-Print Network [OSTI]

MERIT Pump/Probe Data Analysis OutlineOutline The pump/probe program Particle detector response correction Pump/probe analysis results NFMCC Collaboration Meeting , LBNL, January 26, 2009 Ilias Efthymiopoulos - CERN #12;The pump/probe program #12;The pump/probe program Use of the CERN PS flexibility

McDonald, Kirk

487

Spectral Modeling of SNe Ia Near Maximum Light: Probing the Characteristics of Hydro Models  

E-Print Network [OSTI]

We have performed detailed NLTE spectral synthesis modeling of 2 types of 1-D hydro models: the very highly parameterized deflagration model W7, and two delayed detonation models. We find that overall both models do about equally well at fitting well observed SNe Ia near to maximum light. However, the Si II 6150 feature of W7 is systematically too fast, whereas for the delayed detonation models it is also somewhat too fast, but significantly better than that of W7. We find that a parameterized mixed model does the best job of reproducing the Si II 6150 line near maximum light and we study the differences in the models that lead to better fits to normal SNe Ia. We discuss what is required of a hydro model to fit the spectra of observed SNe Ia near maximum light.

E. Baron; S. Bongard; David Branch; Peter H. Hauschildt

2006-03-03T23:59:59.000Z

488

Advances in constitutive modelling of jointed rock hydro mechanical interactions at laboratory scale  

E-Print Network [OSTI]

) INPL-LAEGO-ENSMN, Parc de Saurupt, Ecole des mines, 54000 Nancy, France) (2) INERIS, Parc de Saurupt. The hydro mechanical modelling performed using 3DEC code can be improved from the previous analysis through débit hydraulique dans la fracture. La modélisation hydromécanique réalisée à l'aide du code 3DEC peut

Paris-Sud XI, Université de

489

Buda-Lund hydro model and the elliptic flow at RHIC  

E-Print Network [OSTI]

The ellipsoidally symmetric Buda-Lund hydrodynamic model describes naturally the transverse momentum and the pseudorapidity dependence of the elliptic flow in Au+Au collisions at $\\sqrt{s_{NN}} = 130$ and 200 GeV. The result confirms the indication of quark deconfinement in Au+Au collisions at RHIC, obtained from Buda-Lund hydro model fits to combined spectra and HBT radii of BRAHMS, PHOBOS, PHENIX and STAR.

M. Csanad; T. Csorgo; B. Lorstad

2004-02-12T23:59:59.000Z

490

Turbulent Flow Effects on the Biological Performance of Hydro-Turbines  

SciTech Connect (OSTI)

The hydro-turbine industry uses Computational Fluid Dynamics (CFD) tools to predict the flow conditions as part of the design process for new and rehabilitated turbine units. Typically the hydraulic design process uses steady-state simulations based on Reynolds-Averaged Navier-Stokes (RANS) formulations for turbulence modeling because these methods are computationally efficient and work well to predict averaged hydraulic performance, e.g. power output, efficiency, etc. However, in view of the increasing emphasis on environmental concerns, such as fish passage, the consideration of the biological performance of hydro-turbines is also required in addition to hydraulic performance. This leads to the need to assess whether more realistic simulations of the turbine hydraulic environment ?those that resolve unsteady turbulent eddies not captured in steady-state RANS computations? are needed to better predict the occurrence and extent of extreme flow conditions that could be important in the evaluation of fish injury and mortality risks. In the present work, we conduct unsteady, eddy-resolving CFD simulations on a Kaplan hydro-turbine at a normal operational discharge. The goal is to quantify the impact of turbulence conditions on both the hydraulic and biological performance of the unit. In order to achieve a high resolution of the incoming turbulent flow, Detached Eddy Simulation (DES) turbulence model is used. These transient simulations are compared to RANS simulations to evaluate whether extreme hydraulic conditions are better captured with advanced eddy-resolving turbulence modeling techniques. The transient simulations of key quantities such as pressure and hydraulic shear flow that arise near the various components (e.g. wicket gates, stay vanes, runner blades) are then further analyzed to evaluate their impact on the statistics for the lowest absolute pressure (nadir pressures) and for the frequency of collisions that are known to cause mortal injury in fish passing through hydro-turbines.

Richmond, Marshall C.; Romero Gomez, Pedro DJ

2014-08-25T23:59:59.000Z

491

Quantifying Barotrauma Risk to Juvenile Fish during Hydro-turbine Passage  

SciTech Connect (OSTI)

We introduce a method for hydro turbine biological performance assessment (BioPA) to bridge the gap between field and laboratory studies on fish injury and turbine engineering design. Using this method, a suite of biological performance indicators is computed based on simulated data from a computational fluid dynamics (CFD) model of a proposed hydro turbine design. Each performance indicator is a measure of the probability of exposure to a certain dose of an injury mechanism. If the relationship between the dose of an injury mechanism (stressor) and frequency of injury (dose-response) is known from laboratory or field studies, the likelihood of fish injury for a turbine design can be computed from the performance indicator. By comparing the values of the indicators from various turbine designs, engineers and biologists can identify the more-promising designs and operating conditions to minimize hydraulic conditions hazardous to passing fish. In this paper, the BioPA method is applied to estimate barotrauma induced mortal injury rates for Chinook salmon exposed to rapid pressure changes in Kaplan-type hydro turbines. Following the description of the general method, application of the BioPA to estimate the probability of mortal injury from exposure to rapid decompression is illustrated using a Kaplan hydro turbine at the John Day Dam on the Columbia River in the Pacific Northwest region of the USA. The estimated rates of mortal injury increased from 0.3% to 1.7% as discharge through the turbine increased from 334 to 564 m3/s for fish assumed to be acclimated to a depth of 5 m. The majority of pressure nadirs occurred immediately below the runner blades, with the lowest values in the gap at the blade tips and just below the leading edge of the blades. Such information can help engineers focus on problem areas when designing new turbine runners to be more fish-friendly than existing units.

Richmond, Marshall C.; Serkowski, John A.; Ebner, Laurie L.; Sick, Mirjam; Brown, Richard S.; Carlson, Thomas J.

2014-03-15T23:59:59.000Z

492

HydroChina ZhongNan Engineering Corp | 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 Inspector GeneralDepartmentAUDIT REPORTOpen EnergyBoard"Starting a new pageHuadeHydroChina

493

Multiported storage devices  

E-Print Network [OSTI]

In the past decade the demand for systems that can process and deliver massive amounts of storage has increased. Traditionally, large disk farms have been deployed by connecting several disks to a single server. A problem with this configuration...

Grande, Marcus Bryan

2012-06-07T23:59:59.000Z

494

Monitored Retrievable Storage Background  

Broader source: Energy.gov [DOE]

`The U.S. Government is seeking a site for a monitored retrievable storage facility (MRS). Employing proven technologies used in this country and abroad, the MRS will be an Integral part of the...

495

Gas Storage Act (Illinois)  

Broader source: Energy.gov [DOE]

Any corporation which is engaged in or desires to engage in, the distribution, transportation or storage of natural gas or manufactured gas, which gas, in whole or in part, is intended for ultimate...

496

SUPERCONDUCTING MAGNETIC ENERGY STORAGE  

E-Print Network [OSTI]

Encrgy Storage Plant" , EPRI Report EM-3457, April 1984. [4521st century. REFERENCES The EPRI Regional Systems preparedby J. J. Mulvaney, EPRI Report EPRI P-19S0SR, (1981). [2J O.

Hassenzahl, W.

2011-01-01T23:59:59.000Z

497

Hydrogen storage compositions  

DOE Patents [OSTI]

Compositions for hydrogen storage and methods of making such compositions employ an alloy that exhibits reversible formation/deformation of BH4- anions. The composition includes a ternary alloy including magnesium, boron and a metal and a metal hydride. The ternary alloy and the metal hydride are present in an amount sufficient to render the composition capable of hydrogen storage. The molar ratio of the metal to magnesium and boron in the alloy is such that the alloy exhibits reversible formation/deformation of BH4- anions. The hydrogen storage composition is prepared by combining magnesium, boron and a metal to prepare a ternary alloy and combining the ternary alloy with a metal hydride to form the hydrogen storage composition.

Li, Wen; Vajo, John J.; Cumberland, Robert W.; Liu, Ping

2011-04-19T23:59:59.000Z

498

Storage Tanks (Arkansas)  

Broader source: Energy.gov [DOE]

The Storage Tanks regulations is a set of rules and permit requirements mandated by the Arkansas Pollution and Ecology Commission in order to protect the public health and the lands and the waters...

499

The U.S. National Hydrogen Storage Project Overview (presentation...  

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

ZERONEAR ZERO EMISSIONS Transportation Coal with carbon sequestration Natural Gas* Nuclear Distributed Generation Hydro Wind Solar Geothermal Biomass *Transition only...

500

Boundary Conditions of the Hydro-Cascade Model and Relativistic Kinetic Equations for Finite Domains  

E-Print Network [OSTI]

A detailed analysis of the coupled relativistic kinetic equations for two domains separated by a hypersurface having both space- and time-like parts is presented. Integrating the derived set of transport equations, we obtain the correct system of the hydro+cascade equations to model the relativistic nuclear collision process. Remarkably, the conservation laws on the boundary between domains conserve separately both the incoming and outgoing components of energy, momentum and baryonic charge. Thus, the relativistic kinetic theory generates twice the number of conservation laws compared to traditional hydrodynamics. Our analysis shows that these boundary conditions between domains, the three flux discontinuity, can be satisfied only by a special superposition of two cut-off distribution functions for the ``out'' domain. All these results are applied to the case of the phase transition between quark gluon plasma and hadronic matter. The possible consequences for an improved hydro+cascade description of the relativistic nuclear collisions are discussed. The unique properties of the three flux discontinuity and their effect on the space-time evolution of the transverse expansion are also analyzed. The possible modifications of both transversal radii from pion correlations generated by a correct hydro+cascade approach are discussed.

K. A. Bugaev

2004-01-29T23:59:59.000Z