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1

RSL Energy | Open Energy Information  

Open Energy Info (EERE)

RSL Energy RSL Energy Jump to: navigation, search Name RSL Energy Place Phoenix, Arizona Product Joint venture set up to commercialise an undisclosed 'full-spectrum' semiconductor PV cell, reported to use oxygen-doped ZnMnTe, and an InGaN CPV-suitable multi-junction technology from Cornell and Berkeley Lab. Coordinates 33.44826°, -112.075774° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":33.44826,"lon":-112.075774,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

2

Stirling Energy Systems Inc SES | Open Energy Information  

Open Energy Info (EERE)

Hydrogen, Solar Product: Developer of Stirling engine-based solar systems for STEG, biogas and hydrogen applications. References: Stirling Energy Systems Inc (SES)1 This...

3

?????????????? ??????? stirling ??? ??? ?????????? ???.  

E-Print Network [OSTI]

??The subject of this thesis is the in depth analysis of the Stirling engines and their regenerator. A complex thermodynamic model, the SETAM-NTUA (Stirling Engine (more)

Antonakos, George

2013-01-01T23:59:59.000Z

4

Remote Sensing Laboratory - RSL  

ScienceCinema (OSTI)

One of the primary resources supporting homeland security is the Remote Sensing Laboratory, or RSL. The Laboratory creates advanced technologies for emergency response operations, radiological incident response, and other remote sensing activities. RSL emergency response teams are on call 24-hours a day, and maintain the capability to deploy domestically and internationally in response to threats involving the loss, theft, or release of nuclear or radioactive material. Such incidents might include Nuclear Power Plant accidents, terrorist incidents involving nuclear or radiological materials, NASA launches, and transportation accidents involving nuclear materials. Working with the US Department of Homeland Security, RSL personnel equip, maintain, and conduct training on the mobile detection deployment unit, to provide nuclear radiological security at major national events such as the super bowl, the Indianapolis 500, New Year's Eve celebrations, presidential inaugurations, international meetings and conferences, just about any event where large numbers of people will gather.

None

2015-01-09T23:59:59.000Z

5

Remote Sensing Laboratory - RSL  

SciTech Connect (OSTI)

One of the primary resources supporting homeland security is the Remote Sensing Laboratory, or RSL. The Laboratory creates advanced technologies for emergency response operations, radiological incident response, and other remote sensing activities. RSL emergency response teams are on call 24-hours a day, and maintain the capability to deploy domestically and internationally in response to threats involving the loss, theft, or release of nuclear or radioactive material. Such incidents might include Nuclear Power Plant accidents, terrorist incidents involving nuclear or radiological materials, NASA launches, and transportation accidents involving nuclear materials. Working with the US Department of Homeland Security, RSL personnel equip, maintain, and conduct training on the mobile detection deployment unit, to provide nuclear radiological security at major national events such as the super bowl, the Indianapolis 500, New Year's Eve celebrations, presidential inaugurations, international meetings and conferences, just about any event where large numbers of people will gather.

None

2014-11-06T23:59:59.000Z

6

Stirling Denmark Ltd | Open Energy Information  

Open Energy Info (EERE)

Stirling Denmark Ltd Stirling Denmark Ltd Jump to: navigation, search Name Stirling Denmark Ltd Place Lyngby, Denmark Zip DK 2800 Sector Biomass Product Danish manufacturer of biomass-fueled Stirling engines for power generation with zero CO2 impact. Coordinates 56.866669°, 8.31667° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":56.866669,"lon":8.31667,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

7

RSL-2007-12  

Office of Environmental Management (EM)

Design in Lease Acquisition, signed July 18, 2000, issued SFO language relative to green leasing, energy efficiency, and sustainable design. It implemented EO 13123,...

8

In-line stirling energy system  

DOE Patents [OSTI]

A high efficiency generator is provided using a Stirling engine to amplify an acoustic wave by heating the gas in the engine in a forward mode. The engine is coupled to an alternator to convert heat input to the engine into electricity. A plurality of the engines and respective alternators can be coupled to operate in a timed sequence to produce multi-phase electricity without the need for conversion. The engine system may be operated in a reverse mode as a refrigerator/heat pump.

Backhaus, Scott N. (Espanola, NM); Keolian, Robert (State College, PA)

2011-03-22T23:59:59.000Z

9

Kinematic Stirling engine as an energy conversion subsystem for paraboloidal dish solar thermal power plants  

SciTech Connect (OSTI)

The potential of a suitably designed and economically manufactured Stirling engine as the energy conversion subsystem of a paraboloidal dish-Stirling solar thermal power module has been estimated. Results obtained by elementary cycle analyses have been shown to match quite well the performance characteristics of an advanced kinematic Stirling engine, the United Stirling P-40, as established by current prototypes of the engine and by a more sophisticated analytic model of its advanced derivative. In addition to performance, brief consideration has been given to other Stirling engine criteria such as durability, reliability, and serviceability. Production costs have not been considered here.

Bowyer, J.M.

1984-04-15T23:59:59.000Z

10

Kinematic Stirling engine as an energy conversion subsystem for paraboloidal dish solar thermal plants  

SciTech Connect (OSTI)

The potential of a suitably designed and economically manufactured Stirling engine as the energy conversion subsystem of a paraboloidal dish-Stirling solar thermal power module was estimated. Results obtained by elementary cycle analyses were shown to match quite well the performance characteristics of an advanced kinematic Stirling engine, the United Stirling P-40, as established by current prototypes of the engine and by a more sophisticated analytic model of its advanced derivative. In addition to performance, brief consideration was given to other Stirling engine criteria such as durability, reliability, and serviceability. Production costs were not considered here.

Bowyer, J.M.

1984-04-01T23:59:59.000Z

11

Stirling engines  

SciTech Connect (OSTI)

The Stirling engine was invented by a Scottish clergyman in 1816, but fell into disuse with the coming of the diesel engine. Advances in materials science and the energy crisis have made a hot air engine economically attractive. Explanations are full and understandable. Includes coverage of the underlying thermodynamics and an interesting historical section. Topics include: Introduction to Stirling engine technology, Theoretical concepts--practical realities, Analysis, simulation and design, Practical aspects, Some alternative energy sources, Present research and development, Stirling engine literature.

Reader, G.T.; Hooper

1983-01-01T23:59:59.000Z

12

IECEC '91; Proceedings of the 26th Intersociety Energy Conversion Engineering Conference, Boston, MA, Aug. 4-9, 1991. Vol. 5 - Renewable resource systems, Stirling engines and applications, systems and cycles  

SciTech Connect (OSTI)

Various papers on energy conversion engineering are presented. The general topics considered are: developments in nuclear power, energy from waste and biomass, system performance and materials in photovoltaics, solar thermal energy, wind energy systems, Stirling cycle analysis, Stirling cycle power, Stirling component technology, Stirling cooler/heat pump developments, Stirling engine concepts, Stirling engine design and optimization, Stirling engine dynamics and response, Stirling engine solar terrestrial, advanced cogeneration, AMTC, fossil fuel systems and technologies, marine energy.

Not Available

1991-01-01T23:59:59.000Z

13

Development and utilization of new and renewable energy with Stirling engine system for electricity in China  

SciTech Connect (OSTI)

China is the largest developing country in the world. Self-supporting and self-sustaining energy supply is the only solution for development. Recently, fast economic development exposed gradually increasing pressure of energy demand and environment concern. In order to increase the production of electricity of China, the Stirling engine system should be developed. This paper provides an investigation of energy production and consumption in China. The main features of the energy consumption and the development objectives of China`s electric power industry are also described. The necessity and possibility of development of Stirling engine system is discussed.

Dong, W.; Abenavoli, R.I. [Univ. La Sapienza, Rome (Italy). Dipt. di Meccanica e Aeronautica; Carlini, M. [Univ. della Tuscia, Viterbo (Italy). Dipt. di Scienze dell` Ambiente Forestale e delle sue Risorse

1996-12-31T23:59:59.000Z

14

Infinia Corporation formerly Stirling Technology Company | Open Energy  

Open Energy Info (EERE)

Infinia Corporation formerly Stirling Technology Company Infinia Corporation formerly Stirling Technology Company Jump to: navigation, search Name Infinia Corporation (formerly Stirling Technology Company) Place Kennewick, Washington State Zip 99336 Sector Biomass, Solar Product Developer and manufacturer of a Stirling engine system, which it uses for biomass CHP systems, residential gas-fired CHP systems and for parabolic dish solar thermal electricity generation systems (STEGS). Coordinates 46.20804°, -119.116984° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":46.20804,"lon":-119.116984,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

15

Advanced high temperature materials for the energy efficient automotive stirling engine  

Science Journals Connector (OSTI)

The Stirling engine is under investigation jointly by the Department ... internal combustion engine for automotive applications. The Stirling engine is an external combustion engine that offers ... materials rese...

R. H. Titran; J. R. Stephens

1984-09-01T23:59:59.000Z

16

An Analytical Application: Optimization of a Stirling Engine Based on the Schmidt Analysis and on the Adiabatic Analysis  

Science Journals Connector (OSTI)

Stirling engines are external combustion engines converting thermal energy ... working or operating fluid) at different temperatures. Stirling engines were invented by Robert and James Stirling ... Otto engines. ...

Marco Cavazzuti

2013-01-01T23:59:59.000Z

17

Advanced high temperature materials for the energy efficient automotive Stirling engine  

SciTech Connect (OSTI)

The Stirling engine is under investigation jointly by the Department of Energy and NASA Lewis as an alternative to the internal combustion engine for automotive applications. The Stirling engine is an external combustion engine that offers the advantage of high fuel economy, low emissions, low noise, and low vibrations compared to current internal combustion automotive engines. The most critical component from a materials viewpoint is the heater head consisting of the cylinders, heating tubes, and regenerator housing. Materials requirements for the heater head include compatibility with hydrogen, resistance to hydrogen permeation, high temperature oxidation/corrosion resistance and high temperature creep-rupture and fatigue properties. A continuing supporting materials research and technology program has identified the wrought alloys CG-27 and 12RN72 and the cast alloys XF-818 and NASAUT 4G-A1 as candidate replacements for the cobalt containing alloys used in current prototype engines. Based on the materials research program in support of the automotive Stirling engine it is concluded that manufacture of the engine is feasible from low cost iron-base alloys rather than the cobalt alloys used in prototype engines. This paper will present results of research that led to this conclusion.

Titran, R.H.; Stephens, J.R.

1984-01-01T23:59:59.000Z

18

Project Profile: Thermochemical Energy Storage for Stirling CSP...  

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

The thermochemical reactor produces a storable chemical product when the chemical energy content of a reacting fluid is increased. The chemical product can be used to...

19

Gas Stirling engine ?CHP boiler experimental data driven model for building energy simulation  

Science Journals Connector (OSTI)

Abstract A dynamic model for the simulation of gas micro combined heat and power devices (?CHP boilers) has been developed in order to assess their energy performances. From a literature review and experimental investigations, the new model is designed with the aim of limiting the number of parameters which need to be easily accessible in order to be suitable with annual building energy simulations. At first, this paper focuses on the description of the ?CHP boiler which has been tested, on the development of the test bench and on the experimental results. Then, it focuses on the model description, on its parameterization and on its validation. The modelling approach is based on an energy balance on the device and on empirical expressions for the main inputs and outputs. The model characterizes the ?CHP boiler behaviour for different inlet water flow rates and temperatures. The dynamic phases with the start-up and cooling phases are taken into account. Finally, the models for the Stirling engine and the additional boiler are limited respectively to 28 and 24. Further experimental investigations led to simplify the ?CHP model from 28 to 17 parameters without reducing the accuracy.

J.-B. Bouvenot; B. Andlauer; P. Stabat; D. Marchio; B. Flament; B. Latour; M. Siroux

2014-01-01T23:59:59.000Z

20

Exergy Analysis of Stirling Cycle Cryogenerator  

Science Journals Connector (OSTI)

Exergy or the available work energy function is ... various systems. This paper attempts to present exergy analysis for Stirling cycle cryogenerator. The cycle...

K. G. Narayankhedkar

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rsl energy stirling" 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

The Green Potential of Free-Piston Stirling Engines  

E-Print Network [OSTI]

The Green Potential of Free-Piston Stirling Engines SGER: Green Energy via Control-Based Design of Free-Piston Stirling Engines Control Systems, Grant Number : 838874 Prof. Eric J. Barth, Mark Hofacker Vanderbilt University NSF CMMI Research and Innovation Conference 2009 What is a Free-Piston Stirling Engine

Barth, Eric J.

22

Arizona's 7th congressional district: Energy Resources | Open Energy  

Open Energy Info (EERE)

7th congressional district 7th congressional district Agenera, LLC Amereco Biofuels Corp Arizona Public Service Company APS Arizona Solar Tech EDGE Energy LLC EGreenIdeas Ecotality North America formerly eTec Energy Capital Investments Environmentally Protective Power Generation EPPG Ethanol Capital Management Expert Solar Systems First Solar Inc General Plasma Inc Genesis Solar LLC GeoInnovation Global Seawater Inc Global Solar Energy Global Solar Energy Inc GSE Grecycle Arizona LLC Insight Homes La Mirada Homes Perfect Power Phasor Energy Company Inc Phoenix Analog PowerVerde Inc formerly Vyrex Corporation RSL Energy Sion Power Corp formerly Moltech Corp Stirling Energy Systems Inc SES Sundial Energy, Inc. Tempronics Universal Entech LLC XL Renewables Inc Energy Generation Facilities in Arizona's 7th congressional district

23

Solar-Electric Dish Stirling System Development  

SciTech Connect (OSTI)

Electrical power generated with the heat from the sun, called solar thermal power, is produced with three types of concentrating solar systems - trough or line-focus systems; power towers in which a centrally-located thermal receiver is illuminated with a large field of sun-tracking heliostats; and dish/engine systems. A special case of the third type of system, a dish/Stirling system, is the subject of this paper. A dish/Stirling system comprises a parabolic dish concentrator, a thermal receiver, and a Stirling engine/generator located at the focus of the dish. Several different dish/Stirling systems have been built and operated during the past 15 years. One system claims the world record for net conversion of solar energy to electric power of 29.4%; and two different company`s systems have accumulated thousands of hours of on-sun operation. Due to de-regulation and intense competition in global energy markets as well as the immaturity of the technology, dish/Stirling systems have not yet found their way into the marketplace. This situation is changing as solar technologies become more mature and manufacturers identify high-value niche markets for their products. In this paper, I review the history of dish/Stirling system development with an emphasis on technical and other issues that directly impact the Stirling engine. I also try to provide some insight to the opportunities and barriers confronting the application of dish/Stirling in power generation markets.

Mancini, T.R.

1997-12-31T23:59:59.000Z

24

Stirling engine  

SciTech Connect (OSTI)

This patent describes an improved Stirling engine of the type having a piston slidingly disposed in a cylinder which is mounted on a crankcase. A crosshead is slidingly disposed inside the cylinder and which is connected to the piston by a piston rod so as to move together with the piston and which is separated from the piston by a space. The improvement comprises: an oil-deflecting guard which is disposed in the space between the crosshead and the piston and which is supported so as to move together with the crosshead; and a first oil-absorbing member which is disposed on the oil-deflecting guard on the piston side of the oil-deflecting guard.

Koda, T.; Honda, T.; Taketoh, K.; Yoshida, T.

1987-05-26T23:59:59.000Z

25

Free-piston Stirling engine  

SciTech Connect (OSTI)

A free-piston Stirling engine/linear alternator system (FPSE-010-3), developed under previous Department of Energy (DOE) funding, has been used as a test bed for evaluating selected Stirling engine loss mechanisms. The engine is particularly suited to test-bed operation because engine performance can be evaluated over a wide range of operating conditions; system instrumentation is capable of measuring the effects of system component changes; and modular engine design facilitates the evaluation of alternate component configurations. Extensive testing was performed to establish the operating characteristics of a base-line engine configuration and to characterize specific losses within a Stirling engine. Significant variations in engine performance were observed as the displacer seal clearance was varied. This paper presents selected results from the base-line and displacer seal clearance tests.

Berggren, R.W.; Moynihan, T.M.

1982-09-01T23:59:59.000Z

26

Liquid Piston Stirling Engines  

Science Journals Connector (OSTI)

The Fluidyne liquid piston engine is a simple free-piston Stirling engine that can be made from nothing more...

Graham Walker Ph. D.; J. R. Senft Ph.D.

1985-01-01T23:59:59.000Z

27

Stirling engines and irrigation pumping  

SciTech Connect (OSTI)

This report was prepared in support of the Renewable Energy Applications and Training Project sponsored by the US Agency for International Development for which ORNL provides technical assistance. It briefly outlines the performance that might be achievable from various kinds of Stirling-engine-driven irrigation pumps. Some emphasis is placed on the very simple liquid-piston engines that have been the subject of research in recent years and are suitable for manufacture in less well-developed countries. In addition to the results quoted here (possible limits on M/sup 4/ and pumping head for different-size engines and various operating conditions), the method of calculation is described in sufficient detail for engineers to apply the techniques to other Stirling engine designs for comparison. The liquid-piston Fluidyne is a form of Stirling engine sharing many of the characteristics of conventional kinematic and free-piston Stirling machines. The use of liquid pistons, however, gives it some unique advantages as well as certain problems that are not encountered or are not important in engines with solid pistons. Because the output is naturally available in the form of an oscillating liquid flow or a fluctuating pressure, the Fluidyne is well suited to liquid pumping, but other applications have also been considered. 27 refs., 7 figs., 2 tabs.

West, C.D.

1987-08-01T23:59:59.000Z

28

500W Stirling Engine Development  

Science Journals Connector (OSTI)

A successful realization of Stirling engines is conditioned by its correct conceptual design ... supply engine are used for virtual prototype of Stirling engine.

P. Novotn; V. Pt?k

2010-01-01T23:59:59.000Z

29

Stirling Engine Cycle Efficiency.  

E-Print Network [OSTI]

??ABSTRACT This study strives to provide a clear explanation of the Stirling engine and its efficiency using new automation technology and the Lab View software. (more)

Naddaf, Nasrollah

2012-01-01T23:59:59.000Z

30

Free piston stirling engines  

SciTech Connect (OSTI)

This book presents a basic introduction to free piston Stirling engine technology through a review of specialized background material. It also includes information based on actual construction and operation experience with these machines, as well as theoretical and analytical insights into free piston Stirling engine technology.

Walker, C.

1985-01-01T23:59:59.000Z

31

Dish Stirling Advanced Latent Storage Feasibility  

Science Journals Connector (OSTI)

Abstract Dish-Stirling systems have been demonstrated to provide high-efficiency solar-only electrical generation, holding the world record at 31.25%. This high efficiency results in a system with a high possibility of meeting the DOE SunShot goal of $0.06/kWh. Current dish-Stirling systems do not incorporate thermal storage. For the next generation of non-intermittent and cost-competitive solar power plants, we propose a thermal energy storage system that combines latent (phase-change) energy transport and latent energy storage in order to match the isothermal input requirements of Stirling engines while also maximizing the exergetic efficiency of the entire system. This paper reports on the technical advantages and challenges of dish Stirling with storage, to make a preliminary estimate as to the technical feasibility of such a system. The proposed system with storage incorporates high temperature latent transport and latent storage, providing an exergetic match to the isothermal input of the Stirling cycle. The transport from the receiver to the storage, and from storage to the engine, is accomplished with advanced sodium heat pipes. The storage is in a solid-liquid phase change material (PCM), likely a metallic eutectic to reduce exergy losses in thermal conduction. We model a dish Stirling system at a block level, using a combination of real data from several dish systems with and without heat pipe transport, and determine annual energy production and revenue streams based on Barstow California weather data and Southern California Edison Time of Day pricing. We optimize the system on solar multiple, capacity of storage, and several operational strategies. We find that a storage system using metallic eutectic phase change storage results in a feasible physical embodiment, with mass, volume, and complexity suitable for 25kWe dish Stirling systems. The results indicate a system with 6hours of storage and a solar multiple of 1.25 provides the optimum impact to LCOE and profit for the range of cases studied. A storage system applied to dish Stirling will leverage the current high performance systems, increasing the value to the utilities and transmission entities. A feasible embodiment has been proposed, which with sufficient development will re-establish dish Stirling as a leading energy option.

C.E. Andraka

2014-01-01T23:59:59.000Z

32

Displacer for Stirling engine  

SciTech Connect (OSTI)

In a Stirling engine and the like, a displacer piston having a plurality of internal baffles and insulation so as to prevent undesired heat transfer across the displacer piston.

Brown, A. T.

1985-12-24T23:59:59.000Z

33

Dish/Stirling for Department of Defense applications final report  

SciTech Connect (OSTI)

This report describes a Strategic Environmental Research and Development Program (SERDP) project to field a dish/Stirling system at a southwestern US military facility. This project entitled ``Dish/Stirling for DoD Applications`` was started in August 1993 and was completed in September 1996. The project`s objective was to assist military facilities to field and evaluate emerging environmentally sound and potentially economical dish/Stirling technology. Dish/Stirling technology has the potential to produce electricity at competitive costs while at the same time providing a secure and environmentally benign source of power. In accordance with the SERDP charter, this project leveraged a US Department of Energy (DOE) cost-shared project between Sandia National Laboratories and Cummins Power Generation, Inc. (CPG). CPG is a wholly owned subsidiary of Cummins Engine Company, a leading manufacturer of diesel engines. To accomplish this objective, the project called for the installation of a dish/Stirling system at a military facility to establish first-hand experience in the operation of a dish/Stirling system. To scope the potential DoD market for dish/Stirling technology and to identify the site for the demonstration, a survey of southwestern US military facilities was also conducted. This report describes the project history, the Cummins dish/Stirling system, results from the military market survey, and the field test results.

Diver, R.B.; Menicucci, D.F. [Sandia National Labs., Albuquerque, NM (United States). Energy and Environment Div.] [Sandia National Labs., Albuquerque, NM (United States). Energy and Environment Div.

1997-03-01T23:59:59.000Z

34

The application of Stirling cooler to refrigeration  

SciTech Connect (OSTI)

The application field of the free-piston Stirling Cooler, Model 100A of Global Cooling BV in the refrigeration has been studied. The cooling effectiveness of the free-piston Stirling Cooler which means small capacity with better efficiency, large range of temperature and capacity modulated operation is of much use to cool a space insulated well. One practicable application is suggested here, in which FPSC and secondary heat transfer fluid are used to the single temperature refrigerator (60 liter) instead of conventional vapor compression machines. In the freezer operation at {minus}20 C inside cabinet, the steady-state test results show 25% improvement in energy consumption over original one. The application of free-piston Stirling Cooler to a freezer at lower temperature shows great potentials also.

Kim, S.Y.; Chung, W.S.; Shin, D.K.; Cho, K.S. [LG Electronics Inc., Seoul (Korea, Republic of). Living System Lab.

1997-12-31T23:59:59.000Z

35

Analysis of an idealized Stirling thermocompressor  

SciTech Connect (OSTI)

A thermocompressor uses thermal energy to increase the pressure of a fluid without the intermediate production of mechanical work. The thermocompressor described here is essentially a cold-connected Gamma Stirling engine with the power cylinder replaced by inlet and discharge check valves. It is analyzed based on assumptions similar to those made in the analysis of an ideal Stirling engine. The analysis gives closed form predictions for thermocompressor thermal efficiency, volumetric efficiency, and non-dimensional heat input as functions of pressure and temperature ratio. It is also used to compare thermocompressor performance to that of an ideal Otto engine-driven mechanical compressor.

Kornhauser, A.A. [Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States). Dept. of Mechanical Engineering

1996-12-31T23:59:59.000Z

36

Economic, energy and GHG emissions performance evaluation of a WhisperGen Mk IV Stirling engine ?-CHP unit in a domestic dwelling  

Science Journals Connector (OSTI)

Abstract This paper presents an assessment of the energy, economic and greenhouse gas emissions performances of a WhisperGen Mk IV Stirling engine ?-CHP unit for use in a conventional house in the Republic of Ireland. The energy performance data used in this study was obtained from a field trial carried out in Belfast, Northern Ireland during the period June 2004July 2005 by Northern Ireland Electricity and Phoenix Gas working in collaboration with Whispertech UK. A comparative performance analysis between the ?-CHP unit and a condensing gas boiler revealed that the ?-CHP unit resulted in an annual cost saving of 180 with an incremental simple payback period of 13.8years when compared to a condensing gas boiler. Electricity imported from the grid decreased by 20.8% while CO2 emissions decreased by 16.1%. The ?-CHP unit used 2889kWh of gas more than the condensing gas boiler.

G. Conroy; A. Duffy; L.M. Ayompe

2014-01-01T23:59:59.000Z

37

The Phillips Stirling engine  

SciTech Connect (OSTI)

This book is about the Stirling engine and its development from the heavy cast-iron machine of the 19th century to that of today. It is a history of a research effort spanning nearly 50 years, together with an outline of principles, and some technical details and descriptions of the more important engines. Contents include: the hot-air engine; the 20th-century revival; the Stirling cycle; rhombic-drive engines; heating and cooling; pistons and seals; electric generators and heat pumps; exotic heat sources; the engine and the environment; swashplate engines; and the past and the future.

Hargreaves, C.M.

1991-01-01T23:59:59.000Z

38

Initial testing of a variable-stroke Stirling engine  

SciTech Connect (OSTI)

In support of the US Department of Energy's Stirling Engine Highway Vehicle Systems Program, NASA Lewis Research Center is evaluating variable-stroke control for Stirling engines. The engine being tested is the Advenco Stirling engine; this engine was manufactured by Philips Research Laboratories of the Netherlands and uses a variable-angle swash-plate drive to achieve variable stroke operation. This report describes the engine, presents initial steady-state test data taken at Lewis, and describes a major drive system failure and subsequent modifications. Computer simulation results are presented to show potential part-load efficiency gains with variable-stroke control.

Thieme, L.G.

1985-02-01T23:59:59.000Z

39

Stirling engine piston ring  

DOE Patents [OSTI]

A piston ring design for a Stirling engine wherein the contact pressure between the piston and the cylinder is maintained at a uniform level, independent of engine conditions through a balancing of the pressure exerted upon the ring's surface and thereby allowing the contact pressure on the ring to be predetermined through the use of a preloaded expander ring.

Howarth, Roy B. (Clifton Park, NY)

1983-01-01T23:59:59.000Z

40

Self-pressurizing Stirling engine  

DOE Patents [OSTI]

A solar thermal powered aircraft powered by heat energy from the sun. A heat engine, such as a Stirling engine, is carried by the aircraft body for producing power for a propulsion mechanism, such as a propeller. The heat engine has a thermal battery in thermal contact with it so that heat is supplied from the thermal battery. A solar concentrator, such as reflective parabolic trough, is movably connected to an optically transparent section of the aircraft body for receiving and concentrating solar energy from within the aircraft. Concentrated solar energy is collected by a heat collection and transport conduit, and heat transported to the thermal battery. A solar tracker includes a heliostat for determining optimal alignment with the sun, and a drive motor actuating the solar concentrator into optimal alignment with the sun based on a determination by the heliostat.

Bennett, Charles L. (Livermore, CA)

2010-10-12T23:59:59.000Z

Note: This page contains sample records for the topic "rsl energy stirling" 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

System safety in Stirling engine development  

SciTech Connect (OSTI)

The Department of Energy has established a number of broad programs aimed at reducing highway fuel consumption. One of the programs addresses the Stirling engine propulsion system as a possible alternative to the conventional spark-ignition engine. The objective of this program is the development, by 1984, of a Stirling engine system having at least 30% improvement in fuel economy (mpg) over production vehicles powered by conventional spark-ignition engines of the same weight and performance, based on equal BTU content of fuel used. The DOE/NASA Stirling Engine Project Office has required that contractors make safety considerations an integral part of all phases of the Stirling engine development program. As an integral part of each engine design subtask, analyses are being evolved to determine possible modes of failure. The accepted system safety analysis techniques (Fault Tree, FMEA, Hazards Analysis, etc.) are being applied in various degrees of extent at the system, subsystem and component levels. The primary objectives are to identify critical failure areas, to enable removal of susceptibility to such failures or their effects from the system and to minimize risk.

Bankaitis, H.

1981-01-01T23:59:59.000Z

42

NASA Lewis Stirling engine computer code evaluation  

SciTech Connect (OSTI)

In support of the US Department of Energy's Stirling Engine Highway Vehicle Systems program, the NASA Lewis Stirling engine performance code was evaluated by comparing code predictions without engine-specific calibration factors to GPU-3, P-40, and RE-1000 Stirling engine test data. The error in predicting power output was /minus/11 percent for the P-40 and 12 percent for the RE-1000 at design conditions and 16 percent for the GPU-3 at near-design conditions (2000 rpm engine speed versus 3000 rpm at design). The efficiency and heat input predictions showed better agreement with engine test data than did the power predictions. Concerning all data points, the error in predicting the GPU-3 brake power was significantly larger than for the other engines and was mainly a result of inaccuracy in predicting the pressure phase angle. Analysis into this pressure phase angle prediction error suggested that improvement to the cylinder hysteresis loss model could have a significant effect on overall Stirling engine performance predictions. 13 refs., 26 figs., 3 tabs.

Sullivan, T.J.

1989-01-01T23:59:59.000Z

43

Multi-stage Cascaded Stirling Refrigerator  

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

Multi-stage Cascaded Stirling Refrigerator Multi-stage Cascaded Stirling Refrigerator Los Alamos National Laboratory (LANL) researchers have developed a multi-stage refrigerator,...

44

CFD Tools in Stirling Engine Virtual Design  

Science Journals Connector (OSTI)

A successful realization of Stirling engines is conditioned by its correct conceptual design ... supply engine are used for virtual prototype of Stirling engine.

V. Pistek; P. Novotny

2007-01-01T23:59:59.000Z

45

Stirling Engine Development Using Virtual Prototyping  

Science Journals Connector (OSTI)

A successful realization of Stirling engines is conditioned by its correct conceptual design ... are used for virtual prototype of 3 kW Stirling engine with Rhombic mechanism.

V. Pt?k; P. Novotn

2012-01-01T23:59:59.000Z

46

A pistonless Stirling engineA new direction in thermoacoustics  

Science Journals Connector (OSTI)

Due to its thermodynamic reversibility the Stirling cycle has an inherent advantage in thermal efficiency over the standard irreversible standing?wave thermoacoustic cycle. The main disadvantage of the Stirling cycle has been the need for high?pressure sliding piston seals. Building significantly on the ideas of Ceperley [J. Acoust. Soc. Am. 66 1508 (1979)] a thermoacoustic version of a 1?kW Stirling engine has been constructed and tested. This engine enjoys both the efficiency advantage of the Stirling cycle and the no?moving?parts advantage of thermoacoustics. In this first attempt experimental data show that the engine has an efficiency above 35% of the Carnot efficiency much higher than that of any prior thermoacoustic engine. [Work supported by the Office of Basic Energy Sciences in the U.S. DOE.

Scott N. Backhaus; Gregory W. Swift

1999-01-01T23:59:59.000Z

47

Mobile hydraulic power supply: Liquid piston Stirling engine pump  

Science Journals Connector (OSTI)

Conventional mobile hydraulic power supplies involve numerous kinematic connections and are limited by the efficiency, noise, and emissions of internal combustion engines. The Stirling cycle possesses numerous benefits such as the ability to operate from any heat source, quiet operation, and high theoretical efficiency. The Stirling engine has seen limited success due to poor heat transfer in the working chambers, difficulty sealing low-molecular weight gases at high pressure, and non-ideal piston displacement profiles. As a solution to these limitations, a liquid piston Stirling engine pump is proposed. The liquid pistons conform to irregular volumes, allowing increased heat transfer through geometry features on the interior of the working chambers. Creating near-isothermal operation eliminates the costly external heat exchangers and increases the engine efficiency through decreasing the engine dead space. The liquid pistons provide a positive gas seal and thermal transport to the working chambers. Controlling the flow of the liquid pistons with valves enables matching the ideal Stirling cycle and creates a direct hydraulic power supply. Using liquid hydrogen as a fuel source allows cooling the compression side of the engine before expanded the fuel into a gas and combusting it to heat the expansion side of the engine. Cooling the compression side not only increases the engine power, but also significantly increases the potential thermal efficiency of the engine. A high efficiency Stirling engine makes energy regeneration through reversing the Stirling cycle practical. When used for regeneration, the captured energy can be stored in thermal batteries, such as a molten salt. The liquid piston Stirling engine pump requires further research in numerous areas such as understanding the behavior of the liquid pistons, modeling and optimization of a full engine pump, and careful selection of materials for the extreme operating temperatures. Addressing these obtainable research quandaries will enable a transformative Stirling engine pump with the potential to excel in numerous applications.

James D. Van de Ven

2009-01-01T23:59:59.000Z

48

Proceedings of the 31. intersociety energy conversion engineering conference. Volume 2: Conversion technologies, electro-chemical technologies, Stirling engines, thermal management  

SciTech Connect (OSTI)

The 148 papers contained in Volume 2 are arranged topically as follows -- (A) Conversion Technologies: Superconductivity applications; Advanced cycles; Heat engines; Heat pumps; Combustion and cogeneration; Advanced nuclear reactors; Fusion Power reactors; Magnetohydrodynamics; Alkali metal thermal to electric conversion; Thermoelectrics; Thermionic conversion; Thermophotovoltaics; Advances in electric machinery; and Sorption technologies; (B) Electrochemical Technologies: Terrestrial fuel cell technology; and Batteries for terrestrial power; (C) Stirling Engines: Stirling machine analysis; Stirling machine development and testing; and Stirling component analysis and testing; (D) Thermal Management: Cryogenic heat transfer; Electronic components and power systems; Environmental control systems; Heat pipes; Numeric analysis and code verification; and Two phase heat and mass transfer. Papers within the scope of the data base have been processed separately.

Chetty, P.R.K.; Jackson, W.D.; Dicks, E.B. [eds.

1996-12-31T23:59:59.000Z

49

Stirling engine power control  

DOE Patents [OSTI]

A power control method and apparatus for a Stirling engine including a valved duct connected to the junction of the regenerator and the cooler and running to a bypass chamber connected between the heater and the cylinder. An oscillating zone of demarcation between the hot and cold portions of the working gas is established in the bypass chamber, and the engine pistons and cylinders can run cold.

Fraser, James P. (Scotia, NY)

1983-01-01T23:59:59.000Z

50

Evaluation of a Stirling engine heater bypass with the NASA Lewis nodal-analysis performance code  

SciTech Connect (OSTI)

In support of the US Department of Energy's Stirling Engine Highway Vehicle Systems program, the NASA Lewis Research Center investigated whether bypassing the P-40 Stirling engine heater during regenerative cooling would improve the engine thermal efficiency. The investigation was accomplished by using the Lewis nodal-analysis Stirling engine computer model. Bypassing the P-40 Stirling engine heater at full power resulted in a rise in the indicated thermal efficiency from 40.6 to 41.0 percent. For the idealized (some losses not included) heater bypass that was analyzed, this benefit is not considered significant.

Sullivan, T.J.

1986-05-01T23:59:59.000Z

51

Automotive Stirling Engine Development Program  

SciTech Connect (OSTI)

The Task I accomplishments of the jointly funded Ford/DOE Automotive Stirling Engine Development Program are detailed. This task was directed at achieving 20.6 MPG (gasoline) fuel economy for a 4500 lb inertia weight Stirling engine-powered passenger car. The results of engine testing and design, power control, fuel economy projections, and component design and development are discussed.

Kitzner, E.W.

1980-03-01T23:59:59.000Z

52

Stirling Powered Van Program overview  

SciTech Connect (OSTI)

The Stirling Powered Van Program (SPVP) is a multiyear, multiphase program to evaluate the automotive Stirling engine (ASE) in Air Force vans under realistic conditions. The objective of the SPVP is to have a manufacturer and end user(s) (i.e., on the path to commercialization) of the second-generation Mod II ASE upon completion of the Automotive Stirling Engine Program in 1987. In order to meet this objective, the SPVP must establish Stirling performance, integrity, reliability, durability, and maintainability. This paper reviews the ASE Program background leading to the Van Program and focuses on plans for evaluating the kinematic Stirling engine in Air Force vans. Also discussed are the NASA technology transfers to industry that have been accomplished and those which are currently being developed.

Shaltens, R.K.

1986-01-01T23:59:59.000Z

53

Design of applicative 100 W Stirling engine  

SciTech Connect (OSTI)

A small 100 W displacer type Stirling engine is being developed under a project of a JSME committee, RC127. The project consists of sixteen Japanese academic researchers of universities and governmental laboratories and eleven enterprise members related to the Stirling field. The engine has very unique features. Its expansion cylinder is heated by combustion gas or solar energy directly, and a simple cooling system rejects heat from the working fluid. A regenerator is built in the displacer piston with heating and cooling tubes in which the working fluid flows from/to outer tubes. The outer tubes for heating were located at the top of the expansion cylinder and the tubes for cooling are in the middle of the cylinder. The target performance is a 100 W output with 20% thermal efficiency at the operating conditions of 923 K expansion space temperature, 343 K compression space temperature, and 1,000 rpm. The 100 W displacer engine was designed based on a design manual established by a related JSME committee, RC110. It contains several guides to design for cycle, heat exchanger system, and mechanism of most Stirling cycle machines. The engine was designed by using the fundamental method, the second and third-order analyses accomplished with the newly arranged knowledge about each component. This paper presents the engine specifications and the theoretical analysis results. The design method is also introduced briefly.

Kagawa, Noboru [National Defense Academy, Yokosuka (Japan). Dept. of Applied Physics; Hirata, Koichi; Takeuchi, Makoto [and others

1995-12-31T23:59:59.000Z

54

Synthesis on Stirling Engine Optimization  

Science Journals Connector (OSTI)

The Stirling cycle analysis is a topic of interest to those concerned with the performance of thermal machines. The current trend in this analysis is given by the evaluation of the losses due to the irreversib...

M. Costea; M. Feidt; S. Petrescu

1999-01-01T23:59:59.000Z

55

Automotive Stirling summary and overview  

SciTech Connect (OSTI)

Government-funded studies for adapting the Stirling engine to an automotive application started in 1971. The initial studies were to reduce exhaust emissions and were later broadened to include fuel economy and alternate fuels. With the passage of the Automotive Propulsion Research and Development Act of 1978, the studies matured into the current Automotive Stirling Engine (ASE) Program. After eight years of development effort, the accomplishments of the ASE Program are reviewed to assess the outlook for program success at its scheduled completion in September 1987. One important goal of the ASE program is the transfer of Stirling engine technology to the USA. The technology transfer to the ASE Program team members has been accomplished. To expand the transfer in the USA, various activities have been initiated to make available the developed automotive Stirling engine technology to other US industries, including nonautomotive.

Tabata, W.K.; Shaltens, R.K.

1985-01-01T23:59:59.000Z

56

Developments Towards a Liquid Piston Stirling Engine Tracking # 132055  

E-Print Network [OSTI]

continuous combustion of sustainable fuels, solar energy, factory waste heat, geothermal energy, or numerous 01609 USA The Stirling engine possesses numerous natural benefits such as functioning from any heat a conventional piston. Creating near-isothermal operation in the working chambers eliminates the need for costly

Van de Ven, James D.

57

Ceramic Automotive Stirling Engine Program  

SciTech Connect (OSTI)

The Ceramic Automotive Stirling Engine Program evaluated the application of advanced ceramic materials to an automotive Stirling engine. The objective of the program was to evaluate the technical feasibility of utilizing advanced ceramics to increase peak engine operating temperature, and to evaluate the performance benefits of such an increase. Manufacturing cost estimates were also developed for various ceramic engine components and compared with conventional metallic engine component costs.

Not Available

1986-08-01T23:59:59.000Z

58

Thermodynamic evaluation of a second order simulation for Yoke Ross Stirling engine  

Science Journals Connector (OSTI)

Environmental impact and depletion of mineral resources such as coal, ol and gas are prompting a reexamination of an alternative to these resources. A safe and sustainable energy pathway which is crucial to sustainable development in addition to greenhouse gas emitters and its relationship with climate change are leading factors to look for adequate strategies concerning both energy saving and environmental protection. Solar heat engines are attracting much interest nowadays and, as a consequence, different Stirling engine coupled to solar collector have been investigated since it meets the demands of the efficient use of energy and assuring environmental security. In recent years several prototypes and experimental facilities of solar Stirling engine have been developed. The future commercial interest of this alternative for electric power generation relies on a reduction of investment costs and on an increase of performance. The Stirling heat engine was first patented in 1816 by Robert Stirling. Since then, several Stirling engines based on his invention have been built in many forms and sizes. The engine works with a closed cycle and uses several gases as working fluid. Several prototypes have already been studied and produced but the alpha Stirling engine using the Ross Yoke linkage was not well studied although this kind of engine has the advantage of minimizing lateral forces acting on the pistons and leading to a more efficient and compact design compared to beta or gamma Stirling configuration, The objective of this work was the study of the effect of the geometrical and physical parameters on Ross Yoke Stirling engine performance in order to determine the significant thermodynamic parameters having an impact on engine performance. We proposed thermodynamic optimization of a Ross Yoke Stirling engine on the basis of a numerical model integrating the internal and external irreversibility. As a result, this analysis indicated that the performance of a Ross Yoke Stirling cycle engine with air as working gas depends critically on the geometrical parameters and heat input.

Iskander Tlili; Saed A. Musmar

2013-01-01T23:59:59.000Z

59

Virtual Design of Stirling Engine Combustion Chamber  

Science Journals Connector (OSTI)

The paper deals with the designing of a combustion chamber of the Stirling engine using the CFD approach. Virtual prototypes enabled ... . The presented results help to increase the Stirling engine efficiency tog...

Z. Kaplan; P. Novotn; V. Pt?k

2010-01-01T23:59:59.000Z

60

Simulation of Stirling engine working cycle  

Science Journals Connector (OSTI)

This paper describes model of Stirling machines. The model will be used for optimalization of power station. The power station consists of Stirling engine and electric generator. The genetic algorithms can...

M. Sikora; R. Vlach

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rsl energy stirling" 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

Automotive Stirling Engine Development Program Mod I Stirling engine development  

SciTech Connect (OSTI)

The Automotive Stirling Engine (ASE) Development Program was established to enable research and development of alternate propulsion systems. The program was awarded to Mechanical Technology Incorporated (MTI) for the purpose of developing an automotive Stirling engine, and transferring Stirling-engine technology to the United States. MTI has fabricated and tested four Mod I engines that have accumulated over 1900 test hours to date. The engines evaluated in the test cell have achieved an average of 34.5% efficiency at their maximum efficiency point (2000 rpm), and have developed an average maximum output power (power available to the drive train) level of 54.4 kW (73.2 bhp). All engines are still operating, and are being used to develop components and control strategy for the Upgraded Mod I engine design (predicted to increase maximum power output and efficiency while reducing total engine system weight).

Simetkosky, M.A.

1983-08-01T23:59:59.000Z

62

PERFORMANCE OF A STIRLING ENGINE POWERED HEAT ACTIVATED HEAT PUMP  

E-Print Network [OSTI]

PERFORMANCE OF A STIRLING ENGINE POWERED HEAT ACTIVATED HEAT PUMP W. D. C. Richards and W. L. Auxer General Electric Company Space Division King of Prussia, Pa. ABSTRACT A heat activated heat pump (HAHP for space heating since it directly utilizes the engine waste heat in addition to the energy obtained

Oak Ridge National Laboratory

63

Development of a pellet boiler with Stirling engine for m-CHP domestic application  

Science Journals Connector (OSTI)

A new sustainable technology has been designed by Fondazione Bruno Kessler through its unit Renewable Energies and Environmental Technologies. This technology is realized integrating in a single system (1) a Stirling engine

Luigi Crema; Fabrizio Alberti; Alberto Bertaso

2011-11-01T23:59:59.000Z

64

Design of a 2.5kW Low Temperature Stirling Engine for Distributed Solar Thermal Generation  

E-Print Network [OSTI]

Design of a 2.5kW Low Temperature Stirling Engine for Distributed Solar Thermal Generation Mike He on the design of a Stirling engine for distributed solar thermal ap- plications. In particular, we design renewable energy applications. A key advantage of a solar thermal system is that they can incorporate

Sanders, Seth

65

SEAMOPT - Stirling engine optimization code  

SciTech Connect (OSTI)

Experience is described with use of a fast-running Stirling engine optimization code developed at Argonne intended for public release. Stirling engine modeling is provided by the SEAM1 thermodynamic code. An interface was written to combine SEAM1 with a general optimization code and assess maximum component stress levels. Thus full engine thermodynamic and structural simulation is done during the optimization process. Several examples of the use of this code to optimize the GPU-3 engine are described. In one case efficiency was improved by over 25%.

Heames, T.J.; Daley, J.G.

1984-01-01T23:59:59.000Z

66

Proof of concept of a magnetically coupled Stirling engine-driven heat pump  

SciTech Connect (OSTI)

A prototype magnetically-coupled Stirling engine-driven heat pump module has been designed and fabricated by Sunpower, Inc. under sponsorship of the US Department of Energy and the Oak Ridge National Laboratory (ORNL). Preliminary testing indicates that the magnetic coupling is an effective means for transmitting power from a free-piston Stirling engine to a refrigerant compressor. Compared with other power transmission concepts, the magnetic coupling has relatively low cost, and will help make commercial development of Stirling-driven heat pumps more likely in the future.

Shonder, J.A. [Oak Ridge National Lab., TN (United States); Chen, Gong; McEntee, J. [Sunpower, Inc., Athens, OH (United States)

1992-08-01T23:59:59.000Z

67

Proof of concept of a magnetically coupled Stirling engine-driven heat pump  

SciTech Connect (OSTI)

A prototype magnetically-coupled Stirling engine-driven heat pump module has been designed and fabricated by Sunpower, Inc. under sponsorship of the US Department of Energy and the Oak Ridge National Laboratory (ORNL). Preliminary testing indicates that the magnetic coupling is an effective means for transmitting power from a free-piston Stirling engine to a refrigerant compressor. Compared with other power transmission concepts, the magnetic coupling has relatively low cost, and will help make commercial development of Stirling-driven heat pumps more likely in the future.

Shonder, J.A. (Oak Ridge National Lab., TN (United States)); Chen, Gong; McEntee, J. (Sunpower, Inc., Athens, OH (United States))

1992-01-01T23:59:59.000Z

68

Insoluble coatings for Stirling engine heat pipe condenser surfaces. Final report  

SciTech Connect (OSTI)

The work done by Thermacore, Inc., Lancaster, Pennsylvania, for the Phase 1, 1992 SBIR National Aeronautics and Space Administration Contract, Insoluble Coatings for Stirling Engine Heat Pipe Condenser Surfaces' is described. The work was performed between January 1992 and July 1992. Stirling heat engines are being developed for electrical power generation use on manned and unmanned earth orbital and planetary missions. Dish Stirling solar systems and nuclear reactor Stirling systems are two of the most promising applications of the Stirling engine electrical power generation technology. The sources of thermal energy used to drive the Stirling engine typically are non-uniform in temperature and heat flux. Liquid metal heat pipe receivers are used as thermal transformers and isothermalizers to deliver the thermal energy at a uniform high temperature to the heat input section of the Stirling engine. The use of a heat pipe receiver greatly enhances system efficiency and potential life span. One issue that is raised during the design phase of heat pipe receivers is the potential solubility corrosion of the Stirling engine heat input section by the liquid metal working fluid. This Phase 1 effort initiated a program to evaluate and demonstrate coatings, applied to nickel based Stirling engine heater head materials, that are practically 'insoluble' in sodium, potassium, and NaK. This program initiated a study of nickel aluminide as a coating and developed and demonstrated a heat pipe test vehicle that can be used to test candidate materials and coatings. Nickel 200 and nickel aluminide coated Nickel 200 were tested for 1000 hours at 800 C at a condensation heat flux of 25 W/sq cm. Subsequent analyses of the samples showed no visible sign of solubility corrosion of either coated or uncoated samples. The analysis technique, photomicrographs at 200X, has a resolution of better than 2.5 microns (.0001 in).

Dussinger, P.M.

1993-09-01T23:59:59.000Z

69

Stirling engine with pressurized crankcase  

SciTech Connect (OSTI)

A two piston Stirling engine wherein the pistons are coupled to a common crankshaft via bearing means, the pistons include pad means to minimize friction between the pistons and the cylinders during reciprocation of the pistons, means for pressurizing the engine crankcase, and means for cooling the crankshaft and the bearing means eliminating the need for oil in the crankcase.

Corey, John A. (Melrose, NY)

1988-01-01T23:59:59.000Z

70

Regenerative rotary displacer Stirling engine  

SciTech Connect (OSTI)

A few rotary displacer Stirling engines in which the displacer has one gas pocket space at one side and rotates in a main enclosed cylinder, which is heated from one side and cooled from opposite side without any regenerator, have been studied for some time by the authors. The authors tried to improve this engine by equipping it with a regenerator, because without a regenerator, pressure oscillation and efficiency are too small. Here, several types of regenerative rotary displacer piston Stirling engines are proposed. One is the contra-rotating tandem two disc type displacer engine using axial heat conduction through side walls or by heat pipes and another is a single disc type with circulating fluid regenerator or heat pipes. Stirling engines of this new rotary displacer type are thought to attain high speed. Here, experimental results of the original rotary displacer Stirling engine without a regenerator, and one contra-rotating tandem displacer engine with side wall regenerator by axial heat conduction are reported accompanied with a discussion of the results.

Isshiki, Naotsugu; Watanabe, Hiroichi [Nihon Univ. Tokyo (Japan); Raggi, L. [Waseda Univ., Tokyo (Japan); Isshiki, Seita; Hirata, Koichi

1996-12-31T23:59:59.000Z

71

Isotope powered Stirling generator for terrestrial applications  

SciTech Connect (OSTI)

An electric power supply, small enough to be man-portable, is being developed for remote, terrestrial applications. This system is designed for an operating lifetime of five years without maintenance or refueling. A small Radioisotope Stirling Generator (RSG) has been developed. The energy source of the generator is a 60 watt plutonium-238 fuel clad used in the General Purpose Heat Sources (GPHS) developed for space applications. A free piston Stirling Engine drives a linear alternator to convert the heat to power. The system weighs about 7.5 kg and produces 11 watts AC power with a conversion efficiency of 18.5%. Two engine models have been designed, fabricated, and tested to date: (a) a developmental model instrumented to confirm and test parameters, and (b) an electrically heated model with an electrical heater equipped power input leads. Critical components have been tested for 10,000 to 20,000 hours. One complete generator has been operating for over 11,000 hours. Radioisotope heated prototypes are expected to be fabricated and tested in late 1995.

Tingey, G.L.; Sorensen, G.C. [Pacific Northwest Lab., Richland, WA (United States); Ross, B.A. [Stirling Technology Co., Richland, WA (United States)

1995-01-01T23:59:59.000Z

72

Isotope powered stirling generator for terrestrial applications  

SciTech Connect (OSTI)

An electric power supply, small enough to be man-portable, is being developed for remote, terrestrial applications. This system is designed for an operating lifetime of five years without maintenance or refueling. A small Radioisotope Stirling Generator (RSG) has been developed. The energy source of the generator is a 60 watt plutonium-238 fuel clad used in the General Purpose Heat Sources (GPHS) developed for space applications. A free piston Stirling ENgine drives a linear alternator to convert the heat to power. The system weighs about 7.5 kg and produces 11 watts AC power with a conversion efficiency of 18.5%. Two engine models have been designed, fabricated, and tested to data: (a) a development model instrumented to confirm and test parameters, and (b) an electrically heated model with an electrical heater equipped power input leads. Critical components have been tested for 10,000 to 20,000 hours. One complete generator has been operating for over 11,000 hours. Radioisotope heated prototypes are expected to be fabricated and tested in late 1995. {copyright} 1995 {ital American} {ital Institute} {ital of} {ital Physics}

Tingey, G.L.; Sorensen, G.C. [Battelle, Paific Laboratory, P.O. Box 999, Richland, Washington 99352 (United States); Ross, B.A. [Stirling Technology Company, 2952 George Washington Way, Richland, Washington 99352 (United States)

1995-01-20T23:59:59.000Z

73

Finite-time thermodynamic analysis of the Stirling engine  

SciTech Connect (OSTI)

This paper presents a finite-time thermodynamic analysis of the Stirling engine cycle. A lumped-parameter thermodynamic model is used to describe the dynamic behavior of the Stirling engine. The mathematical formulation of this model is based on mass and energy balances with associated heat transfer rate equations. These governing equations are formulated into a set of ordinary differential equations, which are then solved numerically to obtain the dynamic behavior of the Stirling engine. Close inspection of the governing equations reveals that the time to complete on cycle, {tau} and the engine time constant, {tau}{sub c} always appear together in a dimensionless ratio. This ratio, {tau}/{tau}{sub c}, is defined here as the Finite-Time Parameter, FTP. The effects of FTP upon power output and efficiency, are studied. The results show that there exists an optimum power output for a given engine design, based on engine speed and heat-transfer contact time. The results also provide an engineering evaluation procedure to improve the efficiency and power output of Stirling engines.

Ibrahim, O.M. [Univ. of Rhode Island, Kingston, RI (United States). Mechanical Engineering Dept.; Ladas, H.G. [Environmental Engineering Corp., North Kingstown, RI (United States)

1995-12-31T23:59:59.000Z

74

Dish Stirling High Performance Thermal Storage | Department of...  

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

Stirling High Performance Thermal Storage Dish Stirling High Performance Thermal Storage This presentation was delivered at the SunShot Concentrating Solar Power (CSP) Program...

75

Assessment and economic analysis of the MOD III Stirling-engine driven chiller system. Final report, October 1989-July 1990  

SciTech Connect (OSTI)

The Stirling engine is an inherently clean and efficient engine. With the requirements for environmentally benign emissions and high energy efficiency, the Stirling engine is an attractive alternative to both internal combustion (IC) engines and electric motors. The study evaluated a Stirling-engine-driven chiller package. Technically, the Stirling engine is a good selection as a compressor drive, with inherently low vibrations, quiet operation, long life, and low maintenance. Exhaust emissions are below the projected 1995 stringent California standards. Economically, the Stirling-engine-driven chiller is a viable alternative to both IV-engine and electric-driven chillers, trading off slightly higher installed cost against lower total operating expenses. The penetration of a small portion of the projected near-term stationary engine market opportunity will provide the volume production basis to achieve competitively priced engines.

Moryl, J.

1990-07-01T23:59:59.000Z

76

The low temperature differential Stirling engine with working fluid operated on critical condition  

SciTech Connect (OSTI)

The research and development of low temperature differential Stirling engine has a great potential market since a lot of thermal energy at low temperature can supply it and the cost of this kind of engine is lower than general Stirling engine. The characteristics of low compression ratio and low differential temperature Stirling engine may be satisfied with working fluid compressed on critical conditions. By combining two phase heat transfer with forced convective flow in compression space and through the regenerator in the engine, a new heat transfer coefficient emerges capable of absorbing and releasing high heat fluxes without the corresponding low temperature increase. The current analysis focuses on the study of Stirling engines with working fluid compressed on critical conditions, thus at two-phase heat transfer in compression space and regenerator of the engine under forced convective flow conditions.

Naso, V.; Dong, W.; Lucentini, M.; Capata, R.

1998-07-01T23:59:59.000Z

77

The development of a kinematic Stirling-engine-driven heat pump  

SciTech Connect (OSTI)

The continuing development of a 10-ton light commercial natural-gas-fired kinematic Stirling-engine-driven heat pump system is described. Basic Stirling cycle thermodynamics are presented, and a complete engine heat balance is shown to detail the inherent advantages of the V160 Stirling engine as a prime mover in a heat pump package. Results from environmental laboratory testing of a breadboard prototype are reviewed, and the test procedures used in the evaluation are explained. Seasonal performance of the heat pump package was predicted using a bin-temperature method based on Chicago and Dallas climatic data. Annual energy costs, as predicted by the seasonal performance analytical computer program, have been calculated for a gas furnace, standard electric heat pump, and the Stirling engine-driven prototype heat pump package. These computed costs for these systems are listed and compared.

Monahan, R.E.; Kountz, K.J.; Clinch, J.M.

1987-06-01T23:59:59.000Z

78

Price Model of the Stirling Engine.  

E-Print Network [OSTI]

?? The Stirling engine has very high potential, but there are still some challenges to overcome before it can be commercialised. The engines competitive advantages (more)

Gadr, Isabelle

2014-01-01T23:59:59.000Z

79

Heater head for Stirling engine  

SciTech Connect (OSTI)

This patent describes a heater head for a Stirling engine comprising: a housing for enclosing the heater head with gas at a substantial elevated pressure; insulator means attached to the housing for insulating the heater head; inlet means attached to a regenerator in the housing for admission of relatively high pressure working fluid from the regenerator of a Stirling engine; a first annular heating wall in the housing attached to the inlet means for heating the working fluid; and, a second annular heating wall in the housing concentric with the first heating wall but of lesser diameters so that an annular space is formed between the first heating wall and the second heating wall for heating working fluid; and a third heating wall in the housing concentric with and smaller in diameter than the second heating wall forming the condensing area of a heat pipe between the second heating wall and the third heating wall.

White, M.A.; Emigh, S.G.

1987-06-09T23:59:59.000Z

80

Mod II Stirling engine overviews  

SciTech Connect (OSTI)

The Mod II engine is a second-generation automotive Stirling engine (ASE) optimized for part-power operation. It has been designed specifically to meet the fuel economy and exhaust emissions objectives of the ASE development program. The design, test experience, performance, and comparison of data to analytical performance estimates of the Mod II engine to date are reviewed. Estimates of Mod II performance in its final configuration are also given. 12 references.

Farrell, R.A.

1988-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rsl energy stirling" 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

Overview of the 1985 NASA Lewis Research Center SP-100 free-piston Stirling engine activities  

SciTech Connect (OSTI)

An overview of the 1985 (NASA) Lewis Research Center free-piston Stirling engine activities in support of the SP-100 Program is presented. The SP-100 program is being conducted in support of the Department of Advanced Research Projects Agency (DARPA) and the Department of Energy (DOE), and NASA. This effort is keyed on the design, fabrication, assembly, and testing of a 25 kW(e) Stirling space-power technology-feasibility demonstrator engine. Another facet of the SP-100 project covers the status of a 9000-h goal endurance test conducted on a 2 kW(e) free-piston Stirling/linear alternator system employing hydrostatic gas bearings. Dynamic balancing of the RE-1000 engine (a 1 kW(e) free-piston Stirling engine) using a passive dynamic absorber is discussed, along with the results of a parametric study showing the relationships of Stirling power converter specific weight and efficiency as functions of Stirling engine heater to cooler temperature ratio. Planned tests are described covering a hydrodynamic gas bearing concept for potential SP-100 application.

Slaby, J.G.

1985-01-01T23:59:59.000Z

82

Automotive Stirling Engine Development Program: A success  

SciTech Connect (OSTI)

The original 5 y Automotive Stirling Engine Development Program has been stretched to a 10 y program due to reduced annual funding levels. With an estimated completion date of April 1988, the technical achievements and the prospectives of meeting the original program objectives are reviewed. Various other applications of this developed Stirling engine technology are also discussed.

Tabata, W.K.

1987-01-01T23:59:59.000Z

83

Investigation of the effect of organic working fluids on thermodynamic performance of combined cycle Stirling-ORC  

Science Journals Connector (OSTI)

This paper presents thermodynamic investigation and environmental consideration of combined Stirling-organic Rankine cycle (ORC) power cycle. Combined cycle can be assisted by solar energy and ... side heat rejec...

Mohammad Bahrami; Ali A Hamidi

2013-02-01T23:59:59.000Z

84

Test results of applicative 100 W Stirling engine  

SciTech Connect (OSTI)

A small 100 W displacer-type Stirling engine, Ecoboy-SCM81, has been developed by a committee of the Japan Society of Mechanical Engineers (JSME). The engine contains unique features, including an expansion cylinder which is heated by either combustion gas or direct solar energy. Also, a simple cooling system rejects heat from the working fluid. A displacer piston has both heating and cooling inner tubes for the working fluid which flows to and from outer tubes. The outer tubes for heating were located at the top of the expansion cylinder and the outer tubes for cooling were located in the middle of the cylinder. A regenerator is located in the displacer piston. The components of the engine adopted some new technologies. For instance, a porous type matrix consisting of pressed zigzag stainless steel wires were adopted for the regenerator. The matrix is practical for Stirling engines because it can be made at low cost and the assembling process is simplified.

Hirata, Koichi [Saitama Univ., Urawa, Saitama (Japan). Dept. of Mechanical Engineering; Kagawa, Noboru [National Defense Academy, Yokosuka, Kanagawa (Japan). Dept. of Applied Physics; Takeuchi, Makoto [Suction Gas Engine Manufacturing Co., Ltd., Tokyo (Japan); Yamashita, Iwao [Tokyo Denki Univ., Tokyo (Japan). Dept. of Mechanical Engineering; Isshiki, Naotsugu [Nihon Univ., Tokyo (Japan); Hamaguchi, Kazuhiro [Hokkaido Polytechnic Coll., Otaru, Hokkaido (Japan)

1996-12-31T23:59:59.000Z

85

A pistonless Stirling engineThe traveling wave heat engine  

Science Journals Connector (OSTI)

The propagation of acoustical waves through a differentially heated regenerator results in gas in the regenerator undergoing a Stirling thermodynamic cycle. One direction of wave propagation results in amplification of the waves and conversion of thermal energy into acoustical energy. The opposite direction results in acoustical energy being used to pump heat. The ideal gain and maximum energy conversion rates are derived in this paper. Low power gain measurements were made which verify the derived gain equation. Practical engines and heat pumps using this principle are discussed.

Peter H. Ceperley

1979-01-01T23:59:59.000Z

86

Mod I automotive Stirling engine mechanical development  

SciTech Connect (OSTI)

The Mod I Stirling engine was the first automotive Stirling engine designed specifically for automotive application. Testing of these engines has revealed several deficiencies in engine mechanical integrity which have been corrected by redesign or upgrade. The main deficiencies uncovered during the Mod I program lie in the combustion, auxiliary, main seal, and heater head areas. This paper will address each of the major area deficiencies in detail, and describe the corrective actions taken as they apply to the Mod I and the next Stirling-engine design, the Upgraded Mod I (a redesign to incorporate new materials for cost/weight reduction and improved performance).

Simetkosky, M.

1984-01-01T23:59:59.000Z

87

Design of a new type of rotary Stirling engine  

SciTech Connect (OSTI)

The Stirling machine has had wide diffusion only in cold or cryogenic applications (Philips) while the engine, despite big efforts of large Companies (Philips, Westinghouse, General Motors, etc.), never definitively reached the market; today new interest is raised correlated with environmental and energy related considerations. Thus, researchers efforts are addressed towards the design of innovative and more competitive Stirling engine configurations, like the one here proposed. This paper describes the configuration of a new, rotary Stirling engine. In the cold part of the engine, the working fluid is compressed by a rotating element, then it passes through the regenerator from the cold to the hot end, where it absorbs the heat and expands in the high pressure and temperature area. The high pressure working fluid pushes on the rotating element (the so called rotator) and the engine outputs power. In the design, compression and expansion volumes change with the rotation. Two rotators are connected with a set of gears: therefore, the engine transmission system is simplified and dimensions are reduced.

Abenavoli, R.I.; Dong, W.; Fedele, L.; Sciaboni, A. [Univ. La Sapienza, Rome (Italy). Dipt. di Meccanica e Aeronautica

1996-12-31T23:59:59.000Z

88

Potential impacts of Brayton- and Stirling-cycle engines  

SciTech Connect (OSTI)

Two engine technologies (Brayton cycle and Stirling cycle) currently being pursued by the US Department of Energy were examined for their potential impacts if they achieved commercial viability. An economic analysis of the expected response of buyers to the attributes of the alternative engines was performed. Hedonic coefficients for vehicle fuel efficiency, performance and size were estimated for domestic cars based upon historical data. The marketplace value of the fuel efficiency enhancement provided by Brayton or Stirling engines was estimated. The effect upon various economic sectors of a large scale change-over from conventional to alternate engines was estimated using an economic input-output analysis. Primary effects were found in fuels refining, non-ferroalloy ores and ferroalloy smelting. Secondary effects were found in mining, transport, and capital financing. Under the assumption of 10 years for plant conversions and 1990 and 1995 as the introduction date for turine and Stirling engines respectively, the comparative fuel savings and present value of the future savings in fuel costs were estimated.

Heft, R.C.

1980-11-15T23:59:59.000Z

89

Radioisotope Stirling Generator Options for Pluto Fast Flyby Mission  

SciTech Connect (OSTI)

The preceding paper described conceptual designs and analytical results for five Radioisotope Thermoelectric Generator (RTG) options for the Pluto Fast Flyby (PFF) mission, and the present paper describes three Radioisotope Stirling Generator (RSG) options for the same mission. The RSG options are based on essentially the same radioisotope heat source modules used in previously flown RTGs and on designs and analyses of a 75-watt free-piston Stirling engine produced by Mechanical Technology Incorporated (MTI) for NASA's Lewis Research Center. The integrated system design options presented were generated in a Fairchild Space study sponsored by the Department of Energy's Office of Special Applications, in support of ongoing PFF mission and spacecraft studies that the Jet Propulsion Laboratory (JPL) is conducting for the National Aeronautics and Space Administration (NASA). That study's NASA-directed goal is to reduce the spacecraft mass from its baseline value of 166 kg to ~110 kg, which implies a mass goal of less than 10 kg for a power source able to deliver 69 watts(e) at the end of the 9.2-year mission. In general, the Stirling options were found to be lighter than the thermoelectric options described in the preceding paper. But they are less mature, requiring more development, and entailing greater programmatic risk. The Stirling power system mass ranged from 7.3 kg (well below the 10-kg goal) for a non-redundant system to 11.3 kg for a redundant system able to maintain full power if one of its engines fails. In fact, the latter system could deliver as much as 115 watts(e) if desired by the mission planners. There are 5 copies in the file.

Schock, Alfred

1993-10-01T23:59:59.000Z

90

Automotive Stirling engine: Mod II design report  

SciTech Connect (OSTI)

The design of an automotive Stirling engine that achieves the superior fuel economy potential of the Stirling cycle is described. As the culmination of a 9-yr development program, this engine, designated the Mod II, also nullifies arguments that Stirling engines are heavy, expensive, unreliable, and demonstrate poor performance. Installed in a General Motors 1985 Chevrolet Celebrity car, this engine has a predicted combined fuel economy on unleaded gasoline of 17.5 km/L (41 mi/gal) - a value 50% above the current vehicle fleet average. The Mod II Stirling engine is a four-cylinder V-drive design with a single crankshaft. The engine is also equipped with all the controls and auxiliaries necessary for automotive operation. 35 figs.

Nightingale, N.P.

1986-10-01T23:59:59.000Z

91

Heater head for a Stirling engine  

SciTech Connect (OSTI)

A heater head is described for a compound Stirling engine modules, each including a displacer cylinder coaxially aligned with the displacer cylinder of the other of the engine modules, a displacer piston mounted for reciprocation in the displacer cylinder.

Darooka, D.K.

1988-09-06T23:59:59.000Z

92

Stirling engine research at Argonne National Laboratory  

SciTech Connect (OSTI)

Stirling engine research at Argonne National Laboratory has been focused at (1) development of mathematical models and analytical tools for predicting component and engine performance, and (2) experimental research into fundamental heat transfer and fluid flow phenomena occurring in Stirling cycle devices. A result of the analytical effort has been the formation of a computer library specifically for Stirling engine researchers and developers. The library contains properties of structural materials commonly used, thermophysical properties of several working fluids, correlations for heat transfer calculations and general specifications of mechanical arrangements (including various drive mechanisms) that can be utilized to model a particular engine. The library also contains alternative modules to perform analysis at different levels of sophistication, including design optimization. A reversing flow heat transfer facility is operating at Argonne to provide data at prototypic Stirling engine operating conditions under controlled laboratory conditions. This information is needed to validate analytical models.

Holtz, R.E.; Daley, J.G.; Roach, P.D.

1986-06-01T23:59:59.000Z

93

Recent Stirling engine loss - understanding results  

SciTech Connect (OSTI)

For several years, the National Aeronautics and Space Administration and other US Government agencies have been funding experimental and analytical efforts to improve the understanding of Stirling thermodynamic losses. NASA`s objective is to improve Stirling engine design capability to support the development of new engines for space power. An overview of these efforts was last given at the 1988 IECEC. Recent results of this research are reviewed.

Tew, R.C.; Thieme, L.G.; Dudenhoefer, J.E.

1994-09-01T23:59:59.000Z

94

Downsizing assessment of automotive Stirling engines  

SciTech Connect (OSTI)

A 67 kW (90 hp) Stirling engine design, sized for use in a 1984 1440 kg (3170 lb) automobile has been serving as the focal point for developing automotive Stirling engine technology under a current DOE/NASA R and D program. Since recent trends are towards lighter vehicles, an assessment was made of the appicability of the Stirling technology being developed for smaller, lower power engines. Using both the Philips scaling laws and a Lewis Research Center (Lewis) Stirling engine performance code, dimensional and performance characteristics were determined for a 26 kW (35 hp) and a 37 kW (50 hp) engine for use in a nominal 907 kg (2000 lb) vehicle. Key engine elements were sized and stressed and mechanical layouts were made to ensure mechanical fit and integrity of the engines. Fuel economy estimates indicated that the Stirling engine would maintain a 30 to 45 percent fuel economy advantage over comparable spark ignition and diesel powered vehicles in the 1984 time period. In order to maintain the performance advantage, particular attention must be paid to the Stirling engine mechanical losses and, although evaluated in this report, the cold start penalties.

Knoll, R.H.; Tew, R.C. Jr.; Klann, J.L.

1983-09-01T23:59:59.000Z

95

Vanguard I solar parabolic dish-Stirling engine module. Final report, May 28, 1982-September 30, 1984  

SciTech Connect (OSTI)

Advanco Corporation and the US Department of Energy entered into a cooperative agreement in May 1982 for the design, manufacture, and test of a 25-kWe solar parabolic dish module utilizing a Stirling engine power conversion unit. The product of the cooperative agreement is the Vanguard solar parabolic dish-Stirling engine module. It was designed, fabricated, and shop assembled in Los Angeles, California, and Malmoe, Sweden, and was then installed and tested at Rancho Mirage, California, in accordance with the agreement's specifications. The design features simple fabrication and assembly techniques, low cost, and high operating efficiency. The cover displays the Vanguard module operating on-sun. The concept combines the United Stirling AB (USAB) 4-95 Solar II Stirling engine, the Jet Propulsion Laboratory (JPL) developed mirror facets, the Rockwell/Advanco exocentric gimbal mechanism (EGM), the advanced USAB receiver, and a dry, integrated heat rejection system.

Washom, B.J.

1984-09-30T23:59:59.000Z

96

Assessment of a multi-stage underwater vehicle concept using a fossil-fuel Stirling engine  

SciTech Connect (OSTI)

The Stirling Engine because of its inherent closed-cycle operation can be readily modified to work in an airless environment even if the primary source of energy is a fossil fuel. Thus, Stirling engines are well suited for use in the underwater environment and have been operated successfully in manned military submarines since the early 1980s. In recent years fossil fueled Stirling systems have been also proposed for use in small unmanned underwater vehicles (UUVs). However, in this case the need to carry an onboard oxygen supply in a very confined space has presented a number of design difficulties. These are identified in the paper. However, if the oxidant supply to the engine is provided by the membrane extraction of dissolved oxygen from seawater and/or disposable fuel/oxidant pods are used then the UUV Stirling system becomes more attractive. If this latter concept is extended to include multi-stage vehicles then it can be shown that fossil fueled Stirlings could also be put to effective use in long range-long endurance underwater vehicular operations.

Reader, G.T.; Potter, I.J. [Univ. of Calgary, Alberta (Canada). Dept. of Mechanical Engineering

1995-12-31T23:59:59.000Z

97

Preliminary results for a two-dimensional simulation of the working process of a Stirling engine  

SciTech Connect (OSTI)

Stirling engines have several potential advantages over existing types of engines, in particular they can use renewable energy sources for power production and their performance meets the demands on the environmental security. In order to design Stirling Engines properly, and to put into effect their potential performance, it is important to more accurately mathematically simulate its working process. At present, a series of very important mathematical models are used for describing the working process of Stirling Engines and these are, in general, classified as models of three levels. All the models consider one-dimensional schemes for the engine and assume a uniform fluid velocity, temperature and pressure profiles at each plane of the internal gas circuit of the engine. The use of two-dimensional CFD models can significantly extend the capabilities for the detailed analysis of the complex heat transfer and gas dynamic processes which occur in the internal gas circuit, as well as in the external circuit of the engine. In this paper a two-dimensional simplified frame (no construction walls) calculation scheme for the Stirling Engine has been assumed and the standard {kappa}-{var{underscore}epsilon} turbulence model has been used for the analysis of the engine working process. The results obtained show that the use of two-dimensional CFD models gives the possibility of gaining a much greater insight into the fluid flow and heat transfer processes which occur in Stirling Engines.

Makhkamov, K.K.; Ingham, D.B.

1998-07-01T23:59:59.000Z

98

Analytic model of solar power plant with a Stirling engine  

Science Journals Connector (OSTI)

An analytic model is proposed of a solar power plant (SPP) with a Stirling engine that is based on the isothermal model of the Stirling engine (SE) working process and is improved...

I. A. Tursunbaev

2007-03-01T23:59:59.000Z

99

The Development Status of an Automotive Stirling Engine  

Science Journals Connector (OSTI)

The Stirling engine represents an alternative power plant with superior ... been realized through the development of an automotive Stirling engine, designated the Mod II. The Mod ... II engine represents the culm...

Noel P. Nightingale

1987-01-01T23:59:59.000Z

100

Transient Thermal Performance of the Stirling Engine Wire Regenerator  

Science Journals Connector (OSTI)

8 January 1994 research-article Transient Thermal Performance of the Stirling Engine Wire Regenerator Allan J. Organ Analyses of the classic Hausen type are not merely inappropriate to conditions in the Stirling...

1994-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rsl energy stirling" 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

Automotive Stirling engine Mod I design-review report. Volume II  

SciTech Connect (OSTI)

Volume No. 2 of the Automotive Stirling Engine Mod I Design Review Report contains descriptions of the operating principles, performance requirements and design details of the auxiliaries and control systems for the MOD I Stirling engine system. These components and sub-systems have the following main functions: provide the required fuel and air flows for a well controlled combustion process, generating heat to the Stirling cycle; provide a driver acceptable method for controlling the power output of the engine; provide adequate lubrication and cooling water circulation; generate the electric energy required for engine and vehicle operation; provide a driver acceptable method for starting, stopping and monitoring the engine; and provide a guard system, that protects the engine at component or system malfunction.

Not Available

1982-08-01T23:59:59.000Z

102

Multi-objective optimization of Stirling engine using non-ideal adiabatic method  

Science Journals Connector (OSTI)

Abstract In the recent years, remarkable attention is drawn to Stirling engine due to noticeable advantages, for instance a lot of resources such as biomass, fossil fuels and solar energy can be applied as heat source. Great numbers of studies are conducted on Stirling engines and non-ideal adiabatic method is one of them. In the present study, the efficiency and the power loss due to pressure drop into the heat exchangers are optimized for a Stirling system using non-ideal adiabatic analysis and the second-version Non-dominated Sorting Genetic Algorithm. The optimized answers are chosen from the results using three decision-making methods. The applied methods were compared at last and the best results were obtained for the technique for order preference by similarity to ideal solution decision making method.

Somayeh Toghyani; Alibakhsh Kasaeian; Mohammad H. Ahmadi

2014-01-01T23:59:59.000Z

103

Proceedings of the 25th intersociety energy conversion engineering conference  

SciTech Connect (OSTI)

This book contains the proceedings of the 25th Intersociety Energy Conversion Engineering Conference. Volume 5 is organized under the following headings: Photovoltaics I, Photovoltaics II, Geothermal power, Thermochemical conversion of biomass, Energy from waste and biomass, Solar thermal systems for environmental applications, Solar thermal low temperature systems and components, Solar thermal high temperature systems and components, Wind systems, Space power sterling technology Stirling cooler developments, Stirling solar terrestrial I, Stirling solar terrestrial II, Stirling engine generator sets, Stirling models and simulations, Stirling engine analysis, Stirling models and simulations, Stirling engine analysis, Stirling engine loss understanding, Novel engine concepts, Coal conversion and utilization, Power cycles, MHD water propulsion I, Underwater vehicle powerplants - performance, MHD underwater propulsion II, Nuclear power, Update of advanced nuclear power reactor concepts.

Nelson, P.A.; Schertz, W.W.; Till, R.H.

1990-01-01T23:59:59.000Z

104

The Analysis of a Dwell Mechanism for Alpha -Stirling Engine  

Science Journals Connector (OSTI)

All engineers who work to improve the work efficiency of the ? Stirling engine try to replace the crank mechanism of...

N. M. Dehelean; V. Ciupe

2009-01-01T23:59:59.000Z

105

An approximate thermal analysis of Stirling engine regenerators  

Science Journals Connector (OSTI)

This paper approximates the transport phenomena in a Stirling engine regenerator to aid its practical design. The...

S. H. Park; Y. -S. Lee

1993-06-01T23:59:59.000Z

106

200 kW Stirling Engine for SSP Module Solar Stirling Receiver with Heat Storage System Analysis  

Science Journals Connector (OSTI)

This report describes aspects of Solar Stirling engineering. It is principally concerned with tentative methods of computation, and designs used to further develop, for use in solar farms, the 6-cylinder Stirling engine

H. Michel

1991-01-01T23:59:59.000Z

107

Automotive Stirling Engine Mod I design review report. Volume III  

SciTech Connect (OSTI)

This volume, No. 3, of the Automotive Stirling Engine Mod 1 Design Review Report contains a preliminary parts list and detailed drawings of equipment for the basic Stirling engine and for the following systems: vehicular Stirling Engine System; external heat system; hot and cold engine systems; engine drive; controls and auxiliaries; and vehicle integration. (LCL)

Not Available

1982-08-01T23:59:59.000Z

108

Structural Study on Moving Magnet Compressor for Stirling Engine  

Science Journals Connector (OSTI)

The article describes a structural study on moving magnet compressor for Stirling engine. The performance of Stirling engine is determined by the linear compressor. The article first establishes mathematics models for ordinary linear compressors and ... Keywords: Stirling engine, moving magnet linear compressor, CAE, magnet field analysis

Ding Guozhong; Zhang Xiaoqing; He Mingshun; Shu Shuiming

2010-06-01T23:59:59.000Z

109

A Numerical Analysis of a Kinematic Stirling-Cycle Beat Pump for Space Conditioning Applications*  

E-Print Network [OSTI]

deteriorate seasonal performance. Electric resistance Selection of the GPU-3 engine for heat heating with Energy Systems, Inc. the heat absorber and the heat rejector of #12;HEATER heat absorber s simulation was performed on a only recently been explored. 'To substantiate kinematic Stirling heat pump

Oak Ridge National Laboratory

110

Study of a thermoacoustic?Stirling engine  

Science Journals Connector (OSTI)

During the last decade most efforts in thermoacoustics have been focused on the development and understanding of the traveling?wave thermoacoustic systems. These systems get much attention because they employ the inherently efficient Stirling cycle. This makes them much more efficient that the standing?wave counter parts which are intrinsically irreversible. A 1 kW thermal power thermoacoustic?Stirling engine is designed and performance measurements are performed. The engine incorporates a compact acoustic network to create the traveling?wave phasing necessary to operate in a Stirling cycle. The acoustic network consists of a regenerator unit an acoustic compliance and a feedback inertance. The design construction and performance measurements of the traveling?wave thermoacoustic engine will be presented and discussed.

Hassan Tijani; Simon Spoelstra; Gaelle Poignand

2008-01-01T23:59:59.000Z

111

Analytical model for Stirling cycle machine design  

E-Print Network [OSTI]

In order to study further the promising free piston Stirling engine architecture, there is a need of an analytical thermodynamic model which could be used in a dynamical analysis for preliminary design. To aim at more realistic values, the models have to take into account the heat losses and irreversibilities on the engine. An analytical model which encompasses the critical flaws of the regenerator and furthermore the heat exchangers effectivenesses has been developed. This model has been validated using the whole range of the experimental data available from the General Motor GPU-3 Stirling engine prototype. The effects of the technological and operating parameters on Stirling engine performance have been investigated. In addition to the regenerator influence, the effect of the cooler effectiveness is underlined.

Formosa, Fabien; 10.1016/j.enconman.2010.02.010

2013-01-01T23:59:59.000Z

112

Heat exchanger for a Stirling engine  

SciTech Connect (OSTI)

A heat exchanger is described for a Stirling engine comprising: a domed cylinder having a domed portion and a cylindrical portion. The domed cylinder serves as a high-temperature cylinder and a regenerator housing of the Stirling engine; a cylindrical inner liner which is coaxially disposed inside the domed cylinder and which divides the inside of the domed cylinder into an expansion space inside of the inner liner and a regenerator space between the outer surface of the inner liner and the inner surface of the cylindrical portion of the domed cylinder.

Fujiwara, M.; Nomaguchi, T.; Kazumoto, Y.; Tsuchino, K.; Kawajiri, K.; Hisamori, Y.

1987-05-05T23:59:59.000Z

113

Control scheme for power modulation of a free piston Stirling engine  

SciTech Connect (OSTI)

This patent describes a control system for power modulation of a free piston Stirling engine. It comprises: a receiver adapted to absorb solar energy and to convert the solar energy into thermal energy; a power module comprising a displacer type free piston Stirling engine having power and displacer pistons, and a linear alternator connected to the engine, the power module adapted to receive and to convert the thermal energy into electrical energy; a utility grid adapted to receive the electrical energy from the power module; an autotransformer connected in series between the linear alternator and the grid, the autotransformer being connected by feedback means to the receiver so that a change in solar insolation to the receiver varies the autotransformer turns ratio thus changing the linear alternator's terminal voltage and changing power piston and displacer piston amplitude accordingly to maintain a high engine efficiency cycle over a large operating range for solar insolation absorbed by the receiver.

Dhar, M.

1989-10-17T23:59:59.000Z

114

Design, fabrication, and testing of a sodium evaporator for the STM4-120 kinematic Stirling engine  

SciTech Connect (OSTI)

This report describes the development and testing of a compact heat-pipe heat exchanger kW(e) designed to transfer thermal energy from hot combustion gases to the heater tubes of a 25-kW(e) Stirling engine. In this system, sodium evaporates from a surface that is heated by a stream of hot gases. The liquid metal then condenses on the heater tubes of a Stirling engine, where energy is transferred to the engine`s helium working fluid. Tests on a prototype unit illustrated that a compact (8 cm {times} 13 cm {times} 16 cm) sodium evaporator can routinely transfer 15 kW(t) of energy at an operating vapor temperature of 760 C. Four of these prototype units were eventually used to power a 25-kW(e) Stirling engine system. Design details and test results from the prototype unit are presented in this report.

Rawlinson, K.S.; Adkins, D.R.

1995-05-01T23:59:59.000Z

115

V160 Stirling engine program update  

SciTech Connect (OSTI)

Development efforts being made toward the preproduction stage of the V160 Stirling engine are examined. The history of continued reliability encompassing all engine models is reviewed, and efforts towards engine manufacturing and cost reduction are addressed. A preview is given of the initial product line based on the V160 engine and substantiated through testing of the offered configurations.

Johansson, L.; Torstensson, B.; Williams, T. Y.; Houtman, W.H.; Monahan, R.

1988-01-01T23:59:59.000Z

116

Double acting stirling engine piston ring  

DOE Patents [OSTI]

A piston ring design for a Stirling engine wherein the contact pressure between the piston and the cylinder is maintained at a uniform level, independent of engine conditions through a balancing of the pressure exerted upon the ring's surface and thereby allowing the contact pressure on the ring to be predetermined through the use of a preloaded expander ring.

Howarth, Roy B. (Clifton Park, NY)

1986-01-01T23:59:59.000Z

117

Piston rod seal for a Stirling engine  

SciTech Connect (OSTI)

In a piston rod seal for a Stirling engine, a hydrostatic bearing and differential pressure regulating valve are utilized to provide for a low pressure differential across a rubbing seal between the hydrogen and oil so as to reduce wear on the seal.

Shapiro, Wilbur (Schenectady, NY)

1984-01-01T23:59:59.000Z

118

Two piston V-type Stirling engine  

SciTech Connect (OSTI)

A two piston Stirling engine which includes a heat exchanger arrangement placing the cooler and regenerator directly adjacent the compression space for minimal cold duct volume; a sealing arrangement which eliminates the need for piston seals, crossheads and piston rods; and a simplified power control system. 3 figs.

Corey, J.A.

1987-01-06T23:59:59.000Z

119

Piston rod seal for a Stirling engine  

SciTech Connect (OSTI)

In a piston rod seal for a Stirling engine, a hydrostatic bearing and differential pressure regulating valve are utilized to provide for a low pressure differential across a rubbing seal between the hydrogen and oil so as to reduce wear on the seal. 3 figs.

Shapiro, W.

1984-01-31T23:59:59.000Z

120

FURTHER DEVELOPMENTS IN THE DESIGN OF A FREE-PISTON STIRLING ENGINE  

E-Print Network [OSTI]

NT-87-03-3 FURTHER DEVELOPMENTS IN THE DESIGN OF A FREE-PISTON STIRLING ENGINE HEAT PUMP (1986/1987), the development of an improved Stirling engine driver for the Free-Piston Stirling Engine

Oak Ridge National Laboratory

Note: This page contains sample records for the topic "rsl energy stirling" 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

Maximum Profit of a Cogeneration System Based on Stirling Thermodynamic Cycle  

Science Journals Connector (OSTI)

Stirling engine technologies have been applied to cogeneration systems mainly for residential applications. The performance of Stirling engines has been evaluated considering different operational conditions, which include the electrical and thermal ... Keywords: Numerical Optimisation, Thermo-economic Analysis, Stirling Engine

Ana Cristina Ferreira, Manuel Nunes, Lus Martins, Senhorinha Teixeira

2014-06-01T23:59:59.000Z

122

Project Profile: Maintenance-Free Stirling Engine for High-Performance...  

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

Maintenance-Free Stirling Engine for High-Performance Dish CSP Project Profile: Maintenance-Free Stirling Engine for High-Performance Dish CSP Image of a prototype 30-kW Stirling...

123

Rolling Thunder -- Integration of the Solo 161 Stirling engine with the CPG-460 solar concentrator at Ft. Huachuca  

SciTech Connect (OSTI)

Project Rolling Thunder is a dish/Stirling demonstration project at Ft. Huachuca, a US Army fort in southeastern Arizona (Huachuca means rolling thunder in Apache). It has been supported by the Strategic Environmental Research and Development Program (SERDP), a cooperative program between the Department of Defense (DoD) and the Department of Energy (DOE). As part of a 1992 SERDP project, Cummins Power Generation, Inc. (CPG) installed a CPG 7 kW(c) dish/Stirling system at the Joint Interoperability Test Command (JITC) in Ft. Huachuca, Arizona. The primary objective of the SERDP Dish/Stirling for DoD Applications project was to demonstrate a CPG 7-kW(c) dish/Stirling system at a military facility. Unfortunately, Cummins Engine Company decided to divest its solar operations. As a direct result of Ft. Huachuca`s interest in the Cummins dish/Stirling technology, Sandia explored the possibility of installing a SOLO 161 Stirling power conversion unit (PCU) on the Ft. Huachuca CPG-460. In January 1997, a decision was made to retrofit a SOLO 161 Stirling engine on the CPG-460 at Ft. Huachuca. Project Rolling Thunder. The SOLO 161 Demonstration at Ft. Huachuca has been a challenge. Although, the SOLO 161 PCU has operated nearly flawlessly and the CPG-460 has been, for the most part, a solid and reliable component, integration of the SOLO PCU with the CPG-460 has required significant attention. In this paper, the integration issues and technical approaches of project Rolling Thunder are presented. Lessons of the project are also discussed.

Diver, R.B.; Moss, T.A.; Goldberg, V.; Thomas, G.; Beaudet, A.

1998-09-01T23:59:59.000Z

124

Integration of Radioisotope Heat Source with Stirling Engine and Cooler for Venus Internal-Structure Mission  

SciTech Connect (OSTI)

The primary mission goal is to perform long-term seismic measurements on Venus, to study its largely unknown internal structure. The principal problem is that most payload components cannot long survive Venus's harsh environment, 90 bars at 500 degrees C. To meet the mission life goal, such components must be protected by a refrigerated payload bay. JPL Investigators have proposed a mission concept employing a lander with a spherical payload bay cooled to 25 degrees C by a Stirling cooler powered by a radioisotope-heated Sitrling engine. To support JPL's mission study, NASA/Lewis and MTI have proposed a conceptual design for a hydraulically coupled Stirling engine and cooler, and Fairchild Space - with support of the Department of Energy - has proposed a design and integration scheme for a suitable radioisotope heat source. The key integration problem is to devise a simple, light-weight, and reliable scheme for forcing the radioisotope decay heat to flow through the Stirling engine during operation on Venus, but to reject that heat to the external environment when the Stirling engine and cooler are not operating (e.g., during the cruise phase, when the landers are surrounded by heat shields needed for protection during subsequent entry into the Venusian atmosphere.) A design and integration scheme for achieving these goals, together with results of detailed thermal analyses, are described in this paper. There are 7 copies in the file.

Schock, Alfred

1993-10-01T23:59:59.000Z

125

Biostirling({trademark}): A small biomass power conversion system using an advanced stirling engine  

SciTech Connect (OSTI)

Over the past decade the need for small power conversion systems to serve rural and/or remote needs has increased dramatically. The requirements for systems <100 kW are very similar, whether the need is defined as {open_quotes}rural electrification{close_quotes} in developed countries, or as {open_quotes}village power{close_quotes} in developing countries. The availability of biomass fuel resources to serve such systems is not in doubt, be they agricultural, forestry, animal or urban wastes. The main inhibiting factor has been the absence of a biomass power conversion system characterized by: reliability, cost effectiveness, low pollution, and ease of maintenance. Stirling Thermal Motors of Ann Arbor, Michigan, is recognized as the leader worldwide in the development and application of Stirling engine technology. It is currently demonstrating a {open_quotes}BioStirling({trademark}){close_quotes} Power Conversion System which combines its unique STM4-120 engine rated at 25 kW with a proven commercial gasifier. The BioStirling({trademark}) proof-of-concept demonstration is funded by DOE`s National Renewable Energy Laboratory and is to be completed in late 1996, with field demonstrations in 1997 and commercial availability 1998.

Johansson, L. [Stirling Thermal Motors, Inc., Ann Arbor, MI (United States); Ziph, B.; McKeough, W.; Houtman, W.

1996-12-31T23:59:59.000Z

126

Study of Cross-flow Cooling Effects in a Stirling Engine Heat Exchanger.  

E-Print Network [OSTI]

??While much effort in Stirling engine development is placed on making the high-temperature region of the Stirling engine warmer, this research explores methods to lower (more)

Eppard, Erin Frances

2011-01-01T23:59:59.000Z

127

The Combined Otto and Stirling Cycle Prime-Mover-Based Power Plant.  

E-Print Network [OSTI]

?? An exploratory study of the combined Otto and Stirling cycle prime mover is presented. The Stirling cycle acts as the bottoming cycle on the (more)

Cullen, Barry, (Thesis)

2011-01-01T23:59:59.000Z

128

An experimental study on a model Stirling engine car  

SciTech Connect (OSTI)

A Stirling engine is a mechanical device that operates on a closed regenerative thermodynamic cycle, with cyclic compression and expansion of the working fluid at different temperature levels. The flow is controlled by volume changes, and there exists a net conversion of the heat to work. Stirling engines are ideally suited to off-grid electric power generation because of their multi-fuel capability, potentially high efficiency and low noise. The first model Stirling Techno-rally was held in August 1997 for further promotion of the clean and quiet Stirling engine as one of the Centennial Anniversary events of JSME. In the race, more than one hundred cars competed for the time on a course of 13 meters length and 30 centimeters width. In Ashikaga Institute of Technology, a model Stirling engine car Ashikaga Gekkoh was made for this event. In this paper the authors report on this model car that won the championship of the Stirling Techno-rally.

Sohma, Yutaka; Wu, Chungming; Isshiki, Seita; Ushiyama, Izumi

1999-07-01T23:59:59.000Z

129

Desenvolvimento experimental de um motor stirling tipo gama.  

E-Print Network [OSTI]

??O presente trabalho consiste no desenvolvimento experimental de um motor Stirling tipo gama. So apresentadas inicialmente as diferentes configuraes deste tipo de motor (alfa, gama (more)

Vinicius Guimares da Cruz

2012-01-01T23:59:59.000Z

130

Ringbom-Stirling engine simulation and parametric study  

SciTech Connect (OSTI)

A commercially available second-order isothermal Stirling engine simulation program was modified for operation on a Commodore Pet micro-computer. Modifications and extensions to the programme were introduced to facilitate simulation of the Ringbom-Stirling engine, a distinctive class of Stirling engines characterized by a free displacer and a crank controlled piston. Parametric studies were carried out using the modified simulation programme to assess the consequences of modifications to the principal design parameters. The 'standard case' selected for investigation was the single cylinder Ringbom-Stirling engine under development at the University of Calgary for the Transportation Development Centre, Transport Canada, Montreal.

Srinivasan, V.; Walker, G.; Fauvel, R.; Senft, J.R.

1985-02-01T23:59:59.000Z

131

Advanced 80 We Stirling Convertor Development Progress  

Science Journals Connector (OSTI)

This paper presents progress on the Advanced Stirling Convertor (ASC) being developed by Sunpower and Boeing/Rocketdyne under NASA NRA funding. The ASC will use a high temperature heater head to allow for operation at 850 C. The ASC is projected to have an efficiency approaching 40% (AC electrical out/ heat in) when operating at a temperature ratio of 3.0 and to have a convertor specific power of 90 We/kg (AC). An early developmental unit the Frequency Test Bed (FTB) convertor has already demonstrated 36% efficiency (based on AC electrical out) at this temperature ratio. The ASC is being developed for potential use in advanced radioisotope space power systems. The increased efficiency of this Stirling convertor compared to RTGs would reduce the required amount of Plutonium fuel by a factor of approximately 5.

J. Gary Wood; Cliff Carroll; L. B. Penswick

2005-01-01T23:59:59.000Z

132

Dynamics of an oscillating Stirling heat pump  

Science Journals Connector (OSTI)

Abstract In this paper, a promising heat pump based on Stirling technology is examined. Based on the volume variation produced by the oscillating displacement of two pistons, the advantages of this particular system lie in the elimination of a transmission mechanism, as the driving machines are directly coupled to the working pistons, and in the use of environmentally friendly working gases. The system is analysed by coupling the dynamics to an isothermal model of the Stirling cycle. A methodology is proposed to preliminarily size this type of heat pump based on simulations performed on a mathematical model built in MATLAB. The stability of operation is analysed by considering possible changes in working conditions. Actions are proposed to minimize the effect of these changes on the performance of the system.

I. Barreno; S.C. Costa; M. Cordon; I. Urrutibeascoa; X. Gomez; M. Mateos

2014-01-01T23:59:59.000Z

133

Thermo-economic multi-objective optimization of solar dish-Stirling engine by implementing evolutionary algorithm  

Science Journals Connector (OSTI)

Abstract In the recent years, remarkable attention is drawn to Stirling engine due to noticeable advantages, for instance a lot of resources such as biomass, fossil fuels and solar energy can be applied as heat source. Great number of studies are conducted on Stirling engine and finite time thermo-economic is one of them. In the present study, the dimensionless thermo-economic objective function, thermal efficiency and dimensionless power output are optimized for a dish-Stirling system using finite time thermo-economic analysis and NSGA-II algorithm. Optimized answers are chosen from the results using three decision-making methods. Error analysis is done to find out the error through investigation.

Mohammad H. Ahmadi; Hoseyn Sayyaadi; Amir H. Mohammadi; Marco A. Barranco-Jimenez

2013-01-01T23:59:59.000Z

134

Sensitivity analysis of Stirling engine design parameters  

SciTech Connect (OSTI)

In the preliminary Stirling engine design process, the values of some design parameters (temperature ratio, swept volume ratio, phase angle and dead volume ratio) have to be assumed; as a matter of fact it can be difficult to determine the best values of these parameters for a particular engine design. In this paper, a mathematical model is developed to analyze the sensitivity of engine's performance variations corresponding to variations of these parameters.

Naso, V.; Dong, W.; Lucentini, M.; Capata, R.

1998-07-01T23:59:59.000Z

135

Plunging cylinder liquid piston Stirling engine  

SciTech Connect (OSTI)

A Stirling engine is described comprising, in combination, cylinders having tops and open lower ends, tanks containing hot and cold fluid, with a means plunging the cylinders out of phase into the hot and cold fluid. There is at least one connecting tube providing a passage between the upper portions of the cylinders. A working gas provided in the upper portion of the cylinders and the connecting tube.

Tailer, P.L.; West, J.H.

1987-06-30T23:59:59.000Z

136

Stirling engine with air working fluid  

DOE Patents [OSTI]

A Stirling engine capable of utilizing air as a working fluid which includes a compact heat exchange module which includes heating tube units, regenerator and cooler positioned about the combustion chamber. This arrangement has the purpose and effect of allowing the construction of an efficient, high-speed, high power-density engine without the use of difficult to seal light gases as working fluids.

Corey, John A. (North Troy, NY)

1985-01-01T23:59:59.000Z

137

SEAMOPT: A Stirling engine performance optimization code  

SciTech Connect (OSTI)

A computer code for Stirling engine research and design is described. The code system, SEAMOPT, has been used to: optimize component and engine performance, modify an existing engine to meet new application requirements, and identify design methods that lead to performance improvement and simplified engine design. SEAMOPT consists of a full Stirling engine simulation linked to a rigorous optimization code through an interface module which defines performance objectives and constraints which might limit values of design variables. Calculated results are presented from two example problems using the GPU-3 Stirling engine as a base design. The first example shows how regenerator dimensions can be changed to achieve three different performance objectives. The second example shows changes in the entire thermodynamic section needed to increase power by a factor of 8 while maintaining efficiency. The code, which requires 65K words of memory, executed problem 1 in 45 seconds and problem 2 in 10 minutes on an IBM 3033. 13 refs., 10 figs., 10 tabs.

Heames, T.J.; Daley, J.G.; Minkoff, M.

1986-05-01T23:59:59.000Z

138

Comparison of Stirling engines for use with a 25-kW dish-electric conversion system  

SciTech Connect (OSTI)

The Department of Energy's (DOE) Solar Thermal Technology Program, Sandia National Laboratories (SNLA), is evaluating heat engines for terrestrial solar distributed heat receivers. The Stirling engine has been identified by SNLA as one of the most promising engines for terrestrial applications. The potential to meet DOE's goals for performance and cost can be met by the free-piston Stirling engine. NASA Lewis is providing technical management for an Advanced Stirling Conversion System (ASCS) through a cooperative Interagency Agreement with DOE. Parallel contracts have been awarded to Mechanical Technology, Inc. (MIT) of Latham, New York, and Stirling Technology Company (STC) of Richland, Washington, for the conceptual designs of an ASCS. Each design will feature a free-piston Stirling engine, a liquid-metal heat pipe receiver, and a means to provide about 25 kW of electric power to a utility grid while meeting DOE's long-term performance and cost goals. The MTI design incorporates a linear alternator to directly convert the solar energy to electricity while STC generates electrical power indirectly by using a hydraulic output to a ground-based hydraulic pump/motor coupled to a rotating alternator. Both designs for the ASCS's will use technology which can reasonably be expected to be available in the 1980's. Both the MTI and STC concepts will be evaluated by the same, but independent, contractor to provide a manufacturing and cost analysis including life cycle cost. The ASCS designs using a free-piston Stirling engine, a heat transport system, a receiver, and the methods of providing electricity to the utility grid will be discussed.

Shaltens, R.K.

1987-01-01T23:59:59.000Z

139

Electric co-generation units equipped with wood gasifier and Stirling engine  

SciTech Connect (OSTI)

The disposal of industrial waste such as oil sludges, waste plastic, lubricant oils, paper and wood poses serious problems due to the ever increasing amount of material to be disposed of and to the difficulty in finding new dumping sites. The interest in energy recovery technologies is accordingly on the increase. In particular, large amounts of waste wood are simply burned or thrown away causing considerable environmental damage. In this context the co-generation technique represents one of the possible solutions for efficient energy conversion. The present paper proposes the employment of a Stirling engine as prime mover in a co-generation set equipped with a wood gasifier. A Stirling engine prototype previously developed in a joint project with Mase Generators, an Italian manufacturer of fixed and portable electrogenerators, is illustrated and its design is described.

Bartolini, C.M.; Caresana, F.; Pelagalli, L.

1998-07-01T23:59:59.000Z

140

On-Board Hydrogen Gas Production System For Stirling Engines  

DOE Patents [OSTI]

A hydrogen production system for use in connection with Stirling engines. The production system generates hydrogen working gas and periodically supplies it to the Stirling engine as its working fluid in instances where loss of such working fluid occurs through usage through operation of the associated Stirling engine. The hydrogen gas may be generated by various techniques including electrolysis and stored by various means including the use of a metal hydride absorbing material. By controlling the temperature of the absorbing material, the stored hydrogen gas may be provided to the Stirling engine as needed. A hydrogen production system for use in connection with Stirling engines. The production system generates hydrogen working gas and periodically supplies it to the Stirling engine as its working fluid in instances where loss of such working fluid occurs through usage through operation of the associated Stirling engine. The hydrogen gas may be generated by various techniques including electrolysis and stored by various means including the use of a metal hydride absorbing material. By controlling the temperature of the absorbing material, the stored hydrogen gas may be provided to the Stirling engine as needed.

Johansson, Lennart N. (Ann Arbor, MI)

2004-06-29T23:59:59.000Z

Note: This page contains sample records for the topic "rsl energy stirling" from the National Library of EnergyBeta (NLEBeta).
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to obtain the most current and comprehensive results.


141

DEVELOPMENT OF THFEGENERAL ELECTRIC STIRLING ENGINE GAS HEAT PUMP  

E-Print Network [OSTI]

DEVELOPMENT OF THFEGENERAL ELECTRIC STIRLING ENGINE GAS HEAT PUMP R. C. Meier, Program Manager, Gas Heat Pump Program General Electric Company P. 0. Box 8555 Philadelphia, Pennsylvania 19101 FILE COPY DO NOT REMOVE SUMMARY The Stirling/Rankine Heat Activated Heat Pump is a high performance product for space

Oak Ridge National Laboratory

142

WYNN C. STIRLING Department of Electrical and Computer Engineering  

E-Print Network [OSTI]

. Kenney and W. C. Stirling. Nonlinear filtering of convex sets of probability distributions. J. Stat(3):319­332, 1999. [14] R. W. Beard, J. Kenney, J. Gunther, J. analysis and assessments. Publications Books [1] T. K. Moon and W. C. Stirling. Mathematical Methods

Wirthlin, Michael J.

143

Simulational nanoengineering: Molecular dynamics implementation of an atomistic Stirling engine  

E-Print Network [OSTI]

centuries ago and an early competitor of the steam engine, continues to attract interest owing to itsSimulational nanoengineering: Molecular dynamics implementation of an atomistic Stirling engine D 2009; published 30 April 2009 A nanoscale-sized Stirling engine with an atomistic working fluid has

Rapaport, Dennis C.

144

Hybrid sodium heat pipe receivers for dish/Stirling systems  

SciTech Connect (OSTI)

The design of a hybrid solar/gas heat pipe receiver for the SBP 9 kW dish/Stirling system using a United Stirling AB V160 Stirling engine and the results of on-sun testing in alternative and parallel mode will be reported. The receiver is designed to transfer a thermal power of 35 kW. The heat pipe operates at around 800 C, working fluid is sodium. Operational options are solar-only, gas augmented and gas-only mode. Also the design of a second generation hybrid heat pipe receiver currently developed under a EU-funded project, based on the experience gained with the first hybrid receiver, will be reported. This receiver is designed for the improved SPB/L. and C.-10 kW dish/Stirling system with the reworked SOLO V161 Stirling engine.

Laing, D.; Reusch, M. [Deutsche Forschungsanstalt fuer Luft- und Raumfahrt e.V., Stuttgart (Germany). Inst. fuer Technische Thermodynamik

1997-12-31T23:59:59.000Z

145

Stirling engines for gas fired micro-cogen and cooling  

SciTech Connect (OSTI)

This paper describes the design and performance of free-piston Stirling engine-alternators particularly suited for use as natural gas fired micro-cogen and cooling devices. Stirling based cogen systems offer significant potential advantages over internal combustion engines in efficiency, to maintain higher efficiencies at lower power levels than than combustion engines significantly expands the potential for micro-cogen. System cost reduction and electric prices higher than the U.S. national average will have a far greater effect on commercial success than any further increase in Stirling engine efficiency. There exist niche markets where Stirling engine efficiency. There exist niche markets where Stirling based cogen systems are competitive. Machines of this design are being considered for production in the near future as gas-fired units for combined heat and power in sufficiently large quantities to assure competitive prices for the final unit.

Lane, N.W.; Beale, W.T. [Sunpower, Inc., Athens, OH (United States)

1996-12-31T23:59:59.000Z

146

Space reactor/Stirling cycle systems for high power Lunar applications  

SciTech Connect (OSTI)

NASA`s Space Exploration Initiative (SEI) has proposed the use of high power nuclear power systems on the lunar surface as a necessary alternative to solar power. Because of the long lunar night ({approximately} 14 earth days) solar powered systems with the requisite energy storage in the form of regenerative fuel cells or batteries becomes prohibitively heavy at high power levels ({approximately} 100 kWe). At these high power levels nuclear power systems become an enabling technology for variety of missions. One way of producing power on the lunar surface is with an SP-100 class reactor coupled with Stirling power converters. In this study, analysis and characterization of the SP-100 class reactor coupled with Free Piston Stirling Power Conversion (FPSPC) system will be performed. Comparison of results with previous studies of other systems, particularly Brayton and Thermionic, are made.

Schmitz, P.D. [Sverdrup Technology, Inc., Brook Park, OH (United States). Lewis Research Center Group; Mason, L.S. [National Aeronautics and Space Administration, Cleveland, OH (United States). Lewis Research Center

1994-09-01T23:59:59.000Z

147

Numerical modeling of dish-Stirling reflux solar receivers  

SciTech Connect (OSTI)

Using reflux solar receivers to collect solar energy for dish-Stirling electric power generation systems is currently being investigated by several organizations, including Sandia National Laboratories, Albuquerque, New Mexico. In support of this program, Sandia has developed two numerical models describing the energy transfer within and thermal performance of pool-boiler and heat-pipe receivers. Both models are applicable to axisymmetric geometries and they both consider the radiative and convective energy transfer within the receiver cavity, the conductive and convective energy transfer within the receiver cavity, the conductive and convective energy transfer from the receiver housing, and the energy transfer to the receiver working fluid. In these models, the radiative transfer within the receiver is analyzed using a two-band (solar and infrared) net-radiation formulation for enclosure radiation. Empirical convective correlations describe the convective heat transfer from the cavity to the surroundings. The primary difference between the models is the level of detail in modeling the heat conduction through the receiver walls. The more detailed model uses a two-dimensional finite control volume method, whereas the simpler model uses a one-dimensional thermal resistance approach. 20 refs., 7 figs., 2 tabs.

Hogan, R.E.

1990-01-01T23:59:59.000Z

148

Wood Chips Fueled Stirling Engine  

Science Journals Connector (OSTI)

An efficient process to convert energy into electric current and heat is established with the cogeneration technique. Due to the recovered heat of the Carnot cycle the over-all efficiency can be increased. So far...

Christian Gaegauf

1993-01-01T23:59:59.000Z

149

Double acting stirling engine phase control  

DOE Patents [OSTI]

A mechanical device for effecting a phase change between the expansion and compression volumes of a double-acting Stirling engine uses helical elements which produce opposite rotation of a pair of crankpins when a control rod is moved, so the phase between two pairs of pistons is changed by +.psi. and the phase between the other two pairs of pistons is changed by -.psi.. The phase can change beyond .psi.=90.degree. at which regenerative braking and then reversal of engine rotation occurs.

Berchowitz, David M. (Scotia, NY)

1983-01-01T23:59:59.000Z

150

Thermoacoustic refrigerators and engines comprising cascading stirling thermodynamic units  

DOE Patents [OSTI]

The present invention includes a thermoacoustic assembly and method for improved efficiency. The assembly has a first stage Stirling thermal unit comprising a main ambient heat exchanger, a regenerator and at least one additional heat exchanger. The first stage Stirling thermal unit is serially coupled to a first end of a quarter wavelength long coupling tube. A second stage Stirling thermal unit comprising a main ambient heat exchanger, a regenerator, and at least one additional heat exchanger, is serially coupled to a second end of the quarter wavelength long coupling tube.

Backhaus, Scott; Swift, Greg

2013-06-25T23:59:59.000Z

151

Linear hydraulic drive system for a Stirling engine  

SciTech Connect (OSTI)

A hydraulic drive system operating from the periodic pressure wave produced by a Stirling engine along a first axis thereof and effecting transfer of power from the Stirling engine to a load apparatus therefor and wherein the movable, or working member of the load apparatus is reciprocatingly driven along an axis substantially at right angles to the first axis to achieve an arrangement of a Stirling engine and load apparatus assembly which is much shorter and the components of the load apparatus more readily accessible.

Walsh, Michael M. (Schenectady, NY)

1984-02-21T23:59:59.000Z

152

Linear hydraulic drive system for a Stirling engine  

SciTech Connect (OSTI)

A hydraulic drive system operating from the periodic pressure wave produced by a Stirling engine along a first axis thereof and effecting transfer of power from the Stirling engine to a load apparatus therefor and wherein the movable, or working member of the load apparatus is reciprocatingly driven along an axis substantially at right angles to the first axis to achieve an arrangement of a Stirling engine and load apparatus assembly which is much shorter and the components of the load apparatus more readily accessible. 2 figs.

Walsh, M.M.

1984-02-21T23:59:59.000Z

153

Stirling engine with integrated gas combustor  

SciTech Connect (OSTI)

This paper discusses a Stirling engine. It comprises heat transfer stacks having a cooler, regenerator and heat exchanger stacked end-to-end with a working cylinder adjacent each of the stacks and connected therewith by a hot connecting duct, the heat exchangers including an annular cluster of circumferentially spaced tubes extending from the regenerator in a substantially axial direction to an annular manifold axially spaced from the regenerator such that at any given time during operation of the Stirling engine working fluid in the tubes is flowing in a single axial direction through the heat exchanger, a combustion chamber on an end of each of the stacks having a gas flow outlet communicating with the interior of the heat exchanger tube cluster, air inlets for each of the combustion chambers for allowing air to enter the interior of the chambers, and a nozzle within the combustion chambers for introducing a combustible fuel within the combustion chambers, whereby the combustible fuel and air combust in the combustion chambers and generate hot gases which pass between the tubes applying heat to the heat exchanger.

Meijer, R.J.

1990-12-18T23:59:59.000Z

154

Design of small Stirling Dynamic Isotope Power System for robotic space missions  

SciTech Connect (OSTI)

Design of a multihundred-watt Dynamic Isotope Power System (DIPS) based on the U.S. Department of Energy (DOE) General Purpose Heat Source (GPHS) and small (multihundred-watt) free-piston Stirling engine (FPSE) technology is being pursued as a potential lower cost alternative to radioisotope thermoelectric generator (RTG's). The design is targeted at the power needs of future unmanned deep space and planetary surface exploration missions ranging from scientific probes to Space Exploration Initiative precursor missions. Power level for these missions is less than a kilowatt. Unlike previous DIPS designs which were based on turbomachinery conversion (e.g. Brayton), this small Stirling DIPS can be advantageously scaled down to multihundred-watt unit size while preserving size and mass competitiveness with RTGs. Preliminary characterization of units in the output power ranges 200--600 We indicate that on an electrical watt basis the GPHS/small Stirling DIPS will be roughly equivalent to an advanced RTG in size and mass but require less than a third of the isotope inventory.

Bents, D.J.; Schreiber, J.G.; Withrow, C.A.; McKissock, B.I. (National Aeronautics and Space Administration, Lewis Research Center, Cleveland, Ohio 44135 (United States)); Schmitz, P.C. (Sverdrup Technology, Inc., Lewis Research Center Group, Brook Park, Ohio 44142 (United States))

1993-01-10T23:59:59.000Z

155

Effect of Inert Cover Gas on Performance of Radioisotope Stirling Space Power System  

SciTech Connect (OSTI)

This paper describes an updated Orbital design of a radioisotope Stirling power system and its predicted performance at the beginning and end of a six-year mission to the Jovian moon Europa. The design is based on General Purpose Heat Source (GPHS) modules identical to those previously developed and safety-qualified by the Department of Energy (DOE) which were successfully launched to Jupiter and Saturn by the Jet Propulsion Laboratory (JPL). In each generator, the heat produced by the decay of the Pu-238 isotope is converted to electric power by two free-piston Stirling engines and linear alternators developed by Stirling Technology Company (STC), and their rejected waste heat is transported to radiators by heat pipes. The principal difference between the proposed system design and previous Orbital designs (Or et al. 2000) is the thermal insulation between the heat source and the generator's housing. Previous designs had employed multifoil insulation, whereas the design described here employs Min-K-1800 thermal insulation. Such insulation had been successfully used by Teledyne and GE in earlier RTGs (Radioisotope Thermoelectric Generators). Although Min-K is a much poorer insulator than multifoil in vacuum and requires a substantially greater thickness for equivalent performance, it offers compensating advantages. Specifically it makes it possible to adjust the generator's BOM temperatures by filling its interior volume with inert cover gas. This makes it possible to meet the generator's BOM and EOM performance goals without exceeding its allowable temperature at the beginning of the mission.

Carpenter, Robert; Kumar, V; Ore, C; Schock, Alfred

2001-01-01T23:59:59.000Z

156

U. K. consortium Stirling engine regenerator effectiveness and heater performance  

SciTech Connect (OSTI)

This paper covers results of measurements of effectiveness of regenerator materials by use of a dynamic test rig. The rig enables measurements to be made of enthalpy flux through the regenerator under simulated Stirling engine conditions of fluid flow and heat transfer. The paper also discusses the design and operation of the 60 kw heat-pipe heater head of the U.K. Consortium Stirling engine.

Rice, G.; Dadd, M.W.; Jones, J.D.; Thonger, J.

1983-08-01T23:59:59.000Z

157

Computer program for Stirling-engine-performance calculations  

SciTech Connect (OSTI)

To support the development of the Stirling engine as a possible alternative to the automobile spark-ignition engine, the thermodynamic characteristics of the Stirling engine were analyzed and modeled on a computer. The computer model is documented. The documentation includes a user's manual, symbols list, a test case, comparison of model predictions with test results, and a description of the analytical equations used in the model.

Tew, R.C. Jr.

1983-01-01T23:59:59.000Z

158

Stirling-engine heat-actuated heat pump  

SciTech Connect (OSTI)

A Stirling-engine-driven heat-actuated heat pump (HAHP) system developed at Mechanical Technology Incorporated (MTI) consists of a free-piston Stirling engine (FPSE) driver, a diaphragm-actuated hydraulic coupling, and a Rankine-cycle, resonant-linear refrigerant compressor. This system has been under development at MTI for the past two years; within the last six months, the unit has been placed on test. The system and test results achieved to date are described.

Ackermann, R.A.; English, J.D.; Moynihan, T.M.

1983-01-01T23:59:59.000Z

159

The influence of thermodynamic losses on free-piston Stirling engine performance  

SciTech Connect (OSTI)

In order to improve the performance of a free-piston Stirling engine by means of a thermodynamic design optimization, it is important to quantify the entropy productions related to the different causes of irreversibility typical of these machines. This is done in the present paper, where the entropy generated in the various engine components is calculated applying the energy and entropy balance equations and assuming for the engine behavior description a mathematical model presented in past studies. The developed methodology is applied to the Sunpower RE-1000 engine for which it allows the most important causes of energy loss to be singled out.

Benvenuto, G. [Univ. of Genoa (Italy). Dipt. di Ingegneria Navale; Monte, F. de; Galli, G. [Univ. di L`Aquila (Italy). Dipt. di Energetica

1995-12-31T23:59:59.000Z

160

Modeling and optimization of a combined cycle Stirling-ORC system and design of an integrated microchannel Stirling heat rejector.  

E-Print Network [OSTI]

??The performance of a combined Stirling-ORC power cycle is evaluated, and an integrated microchannel heat exchanger is designed as an annular cold-side heat rejector for (more)

Ingram-Goble, Robbie

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rsl energy stirling" 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

Stirling engine control mechanism and method  

SciTech Connect (OSTI)

A reciprocating-to-rotating motion conversion and power control device for a Stirling engine includes a hub mounted on an offset portion of the output shaft for rotation relative to the shaft and for sliding motion therealong which causes the hub to tilt relative to the axis of rotation of the shaft. This changes the angle of inclination of the hub relative to the shaft axis and changes the axial stroke of a set of arms connected to the hub and nutating therewith. A hydraulic actuating mechanism is connected to the hub for moving its axial position along the shaft. A balancing wheel is linked to the hub and changes its angle of inclination as the angle of inclination of the hub changes to maintain the mechanism in perfect balance throughout its range of motion.

Dineen, John J. (Durham, NH)

1983-01-01T23:59:59.000Z

162

Study of the regenerator constituting material influence on a gamma type Stirling engine  

Science Journals Connector (OSTI)

A gamma Stirling engine with compressed air as working fluid was ... . The obtained experimental results provide guidance to Stirling engine enhancement and selection of the appropriate regenerator ... to enhance...

Ramla Gheith; Fethi Aloui

2012-04-01T23:59:59.000Z

163

Development and test of combustion chamber for Stirling engine heated by natural gas  

Science Journals Connector (OSTI)

The combustion chamber is an important component for the Stirling engine heated by natural gas. In the paper ... , we develop a combustion chamber for the Stirling engine which aims to generate 3?5 kWe...electric...

Tie Li; Xiange Song; Xiaohong Gui; Dawei Tang; Zhigang Li

2014-04-01T23:59:59.000Z

164

Development of Practical Stirling Engine for Co-Generation System Using Woody Biomass Fuels  

Science Journals Connector (OSTI)

With this background, in 2005, we manufactured a practical Stirling engine using biomass fuels. And we proposed a unique co-generation system using a practical Stirling engine that utilizes woody biomass fuel suc...

Akira Hoshi; Nobutoshi Tezuka; Seizi Sasaki

2009-01-01T23:59:59.000Z

165

The Second International Stirling Engine Conference, Shanghai, Peoples Republic of China, June 1984  

SciTech Connect (OSTI)

The Second International Stirling Engine Conference was held in Shanghai, Peoples Republic of China in June 1984. This paper reviews some of the events leading to the conference and the establishment of the Stirling Engine Conference Council.

Walker, G.

1984-08-01T23:59:59.000Z

166

A Digital Model of a Dwell Mechanism for Alpha-Stirling Engine  

Science Journals Connector (OSTI)

The paper shows a digital model of a dwell mechanism dedicated to an ?-Stirling Engine. The low efficiency of an ?-Stirling Engine drives us to improve on its work...2]. The main way to achieve this is to improve...

N. M. Dehelean; V. Ciupe; E. C. Lovasz

2009-01-01T23:59:59.000Z

167

From jet fuel to electric power using a mesoscale, efficient Stirling cycle  

E-Print Network [OSTI]

combustor coupled with a free-piston Stirling engine. The design and development of a catalytic combustor ratios varying in the 0.35­0.70 range. The combustor is interfaced with a free-piston Stirling engine combustion; Electrospray; Catalytic; Free-piston Stirling engine 1. Introduction Power generation is often

Gomez, Alessandro

168

Structural Design and Parameter Research on the Biomass Direct-fired Stirling Engine  

Science Journals Connector (OSTI)

It makes a brief description of the forms and main parameters of the ? Stirling engine with the rhombic drive mechanism. The paper makes a deep analysis and found mathematical models on the cycle performance of ? Stirling engine, illustrates ... Keywords: Stirling engine, biomass, direct-fired, rhombic driving mechanism, performance simulation

Xu Zhang; Yan Ma

2010-08-01T23:59:59.000Z

169

Stirling engines in generating heat and electricity for micro: CHP systems  

Science Journals Connector (OSTI)

In this paper, an analysis of different generating heat and electricity systems with Stirling engine is made from the point of view of benefits and limitations, both operational and economic and environmental. Stirling engine has the ability to work ... Keywords: biomass, fossil fuels, generating heat and electricity system, m-CHP, stirling engine

Dan Scarpete; Krisztina Uzuneanu

2011-03-01T23:59:59.000Z

170

Selection of stirling engine parameter and modes of joint operation with the Topaz II  

SciTech Connect (OSTI)

In addition to a high-temperature thermionic conversion cycle, application of a low-temperature machine cycle, such as the Stirling engine, is being considered. To select the optimum mode for joint operation of the Topaz II system and Stirling engine, output electric parameters are obtained as a function of thermal power released in the TFE fuel cores. The hydraulic diagram used for joint operation of the Topaz II and the Stirling engine is considered. Requirements to hydraulic characteristics of the Stirling engine heat exchanges are formulated. Scope of necessary modifications to mount the Stirling Engine on the Topaz II is estimated. {copyright} {ital 1996 American Institute of Physics.}

Kirillov, E.Y.; Ogloblin, B.G.; Shalaev, A.I. [Central Design Bureau of Machine Building, Krasnogvardeyskaya Square 3, St. Petersburg, (Russia) 195272

1996-03-01T23:59:59.000Z

171

Progress toward the evolution of a Stirling Space Engine  

SciTech Connect (OSTI)

Following the successful testing of the 25 kWe Space Power Demonstrator (SPD) engine in 1985, a Stirling Space Engine (SSE) technology advancement program was initiated. The program`s objective was to advance free-piston Stirling engine/alternator technology sufficiently so that a Stirling engine system may become a viable candidate for space power applications. Evolution of the SSE technology is planned to occur at three different engine heater temperature levels: 650, 1050, and 1300 K. These temperatures define three phases of technology development with the first phase involving the 650 K SPD engine. Technology development of the 650 K engine and preliminary design of the 1050 K engine will be discussed in this paper.

Alger, D.L. [Lewis Research Center, Cleveland, OH (United States)

1994-09-01T23:59:59.000Z

172

Analysis of the working process and mechanical losses in a Stirling engine for a solar power unit  

SciTech Connect (OSTI)

In this paper a second level mathematical model for the computational simulation of the working process of a 1-kW Stirling engine has been used and the results obtained are presented. The internal circuit of the engine in the calculation scheme was divided into five chambers, namely, the expansion space, heater, regenerator, cooler and the compression space, and the governing system of ordinary differential equations for the energy and mass conservation were solved in each chamber by Euler`s method. In addition, mechanical losses in the construction of the engine have been determined and the computational results show that the mechanical losses for this particular design of the Stirling engine may be up to 50% of the indicated power of the engine.

Makhkamov, K.K. [Uzbek Academy of Sciences, Tashkent (Uzbekistan). Physical and Technical Inst.; Ingham, D.B. [Univ. of Leeds (United Kingdom). Dept. of Applied Mathematics

1999-05-01T23:59:59.000Z

173

Further developments in the design of a free-piston Stirling engine heat pump for residential applications  

SciTech Connect (OSTI)

During the past year (1986/1987), the development of an improved Stirling engine driver for the Free-Piston Stirling Engine Heat Pump (FPSE/HP) has led to a significant increase in heat pump performance. With the improved engine, named the MARK I, the FPSE/HP has achieved its two critical milestones of producing 3.0 refrigeration tons (RT) at the 35/sup 0/C (95/sup 0/F) ambient temperature conditions and an engine efficiency of 25%, as measured from the fuel input energy, based on the higher heating value of the natural gas and mechanical power developed by the engine. This paper describes the latest configuration of the FPSE/HP module and presents measured performance data. Performance has been measured over a broad range of ambient temperature conditions and engine operating parameters. The results obtained from this testing are presented.

Ackermann, R.A.; Clinch, J.M.; Privon, G.T.

1987-01-01T23:59:59.000Z

174

A simple computational model for Stirling cycle refrigerators  

SciTech Connect (OSTI)

This paper presents a simple computational model for an Alpha Free-Pistons Stirling refrigerator. The model assumes isothermal workspaces, where the compression space is maintained at temperature TH, while the expansion space is maintained at temperature TL. The regenerator is assumed to have a linear temperature distribution along its axial direction, with the working fluid taken as an ideal gas. This model is based on a control volume type analysis in which each of the components of the refrigerator (the regenerator and each of the two workspaces) is considered a separate control volume. Moving the compression piston in a predetermined sinusoidal motion provides the work input to the cycle. The motion of the compression space piston generates a pressure difference across the refrigerator, and forces the working fluid to pass through the regenerator. The expansion piston responds to the pressure in its workspace according to Newton's second law of motion. In this way the dynamics of the moving pistons will be coupled to the thermodynamics of the refrigerator system. Conservation laws of mass, momentum and energy along with ideal gas relations are used to form a set of differential and algebraic equations fully describing the refrigerator system. The motion of the expansion piston, the state of the working fluid at each workspace, and the energy terms appearing in the definition of the COP, can all be obtained. A marching-in-time technique with a Runge-Kutta scheme of the fourth order is adapted to integrate the equation of motion of the expansion piston. System behavior can be represented by the motion of the two pistons with time, and also by the pressure-volume diagrams of the workspaces. The COP plots can be produced from the computational results to describe the performance of the refrigerator.

Al-Hazmy, M.M.; Peterson, R.B.

1998-07-01T23:59:59.000Z

175

Radioisotope power system based on derivative of existing Stirling engine  

SciTech Connect (OSTI)

In a recent paper, the authors presented the results of a system design study of a 75-watt(c) RSG (Radioisotope Stirling Generator) for possible application to the Pluto Fast Flyby mission. That study was based on a Stirling engine design generated by MTI (Mechanical Technology, Inc.). The MTI design was a derivative of a much larger (13 kwe) engine that they had developed and tested for NASA`s LERC. Clearly, such a derivative would be a major extrapolation (downsizing) from what has actually been built and tested. To avoid that, the present paper describes a design for a 75-watt RSG system based on derivatives of a small (11-watt) engine and linear alternator system that has been under development by STC (Stirling Technology Company) for over three years and that has operated successfully for over 15,000 hours as of March 1995. Thus, the STC engines would require much less extrapolation from proven designs. The design employs a heat source consisting of two standard General Purpose Heat Source (GPHS) modules, coupled to four Stirling engines with linear alternators, any three of which could deliver the desired 75-watt(e) output if the fourth should fail. The four engines are coupled to four common radiators with redundant heatpipes for rejecting the engines` waste heat to space. The above engine and radiator redundancies promote system reliability. The paper describes detailed analyses to determine the effect of radiator geometry on system mass and performance, before and after an engine or heatpipe failure.

Schock, A.; Or, C.T.; Kumar, V. [Orbital Sciences Corp., Germantown, MD (United States)

1995-12-31T23:59:59.000Z

176

Stirling engines. (Latest citations from the COMPENDEX database). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations concerning Stirling engine technology. Design, development, performance testing, and applications are discussed, including power generation, cryogenic cooling, solar power applications, and ground and marine vehicles. The citations also examine engine component design and material testing results. (Contains 250 citations and includes a subject term index and title list.)

Not Available

1992-12-01T23:59:59.000Z

177

Automotive Stirling engine development for a small passenger car  

SciTech Connect (OSTI)

The Aisin Seiki Co., Ltd. has challenged for the development of a Stirling engine that is usable for small cars which are predominant type produced in Japan. Recently, the authors finally managed to obtain the performance from a prototype engine with which they are substantially satisfied, including the result from running tests on an actual car.

Kondoh, T.; Katoh, K.

1988-01-01T23:59:59.000Z

178

Solar energy power generation system  

SciTech Connect (OSTI)

A solar energy power generation system is described which consists of: (a) means for collecting and concentrating solar energy; (b) heat storage means; (c) Stirling engine means for producing power; (d) first heat transfer means for receiving the concentrated solar energy and for transferring heat to the heat storage means; and (e) second heat transfer means for controllably transferring heat from the storage means to the Stirling engine means and including a discharge heat pipe means for transferring heat to the Stirling engine means and further including means for inserting and withdrawing the discharge heat pipe means into and out of the heat storage means.

Nilsson, J.E.; Cochran, C.D.

1986-05-06T23:59:59.000Z

179

High Temperature Variable Conductance Heat Pipes for Radioisotope Stirling Systems  

SciTech Connect (OSTI)

In a Stirling radioisotope system, heat must continually be removed from the GPHS modules, to maintain the GPHS modules and surrounding insulation at acceptable temperatures. Normally, the Stirling converter provides this cooling. If the Stirling engine stops in the current system, the insulation is designed to spoil, preventing damage to the GPHS, but also ending the mission. An alkali-metal Variable Conductance Heat Pipe (VCHP) is under development to allow multiple stops and restarts of the Stirling engine. The status of the ongoing effort in developing this technology is presented in this paper. An earlier, preliminary design had a radiator outside the Advanced Stirling Radioisotope Generator (ASRG) casing, used NaK as the working fluid, and had the reservoir located on the cold side adapter flange. The revised design has an internal radiator inside the casing, with the reservoir embedded inside the insulation. A large set of advantages are offered by this new design. In addition to reducing the overall size and mass of the VCHP, simplicity, compactness and easiness in assembling the VCHP with the ASRG are significantly enhanced. Also, the permanently elevated temperatures of the entire VCHP allows the change of the working fluid from a binary compound (NaK) to single compound (Na). The latter, by its properties, allows higher performance and further mass reduction of the system. Preliminary design and analysis shows an acceptable peak temperature of the ASRG case of 140 deg. C while the heat losses caused by the addition of the VCHP are 1.8 W.

Tarau, Calin; Walker, Kara L.; Anderson, William G. [Advanced Cooling Technologies, Inc. 1046 New Holland Ave. Lancaster, PA 17601 (United States)

2009-03-16T23:59:59.000Z

180

The use of parallel?plate regenerators in thermoacoustic?Stirling engines  

Science Journals Connector (OSTI)

The regenerator is a key element in a thermoacoustic?Stirling engine. Typically it is made by stacking up many layers of fine?mesh stainless?steel screen. With a high heat capacity and a typical pore size much smaller than the thermal penetration depth it provides a nearly isothermal environment at the acoustic frequency. By almost eliminating the temperature oscillations of the gas in it the regenerator minimizes the unwanted enthalpy flux from the hot heat exchanger to ambient heat exchanger and keeps the engines efficiency high. However the small pore size also causes a significant amount of viscous dissipation which lowers the efficiency. A regenerator made of parallel plates can be designed to provide the same heat transfer properties as a screen regenerator with much lower viscous dissipation. By replacing a screen based regenerator with a carefully constructed parallel?plate regenerator the acoustic power output of a thermoacoustic?Stirling engine is nearly doubled with significant increases in efficiency at high amplitudes. [Work funded by the Office of Basic Energy Sciences within the U.S. DOE.

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rsl energy stirling" 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

Adaptive regulation system for a linear alternator driven by a free-piston stirling engine  

SciTech Connect (OSTI)

This patent describes an adaptive load regulator for a linear alternator driven by a free piston Stirling engine, having a heat energy source, the alternator having an armature circuit and a useful load connected to the armature circuit, and further including a stepped armature system for controlling the stroke amplitude of the Stirling engine. The regulator and the stepped armature system comprise: (a) a controllably variable conductance shunted across the armature; (b) a negative feedback control circuit comprising: (i) a summing circuit; (ii) a voltage detector means connected to the armature circuit for detecting a signal which is proportional to the alternator output voltage and connected to apply the detected signal to an input of the summing circuit; (iii) a reference signal source connected to apply its reference signal to another input of the summing circuit; and (iv) an amplifier having its input connected to the output of the summing circuit and its output connected to the control input of the controllable, variable conductance for applying a signal which is proportional to the difference of the input signals at the summing circuit to a control input of the variable conductance for varying the conductance in proportion to detected voltage changes; (c) an armature coil divided into a plurality of coils serially connected by one or more taps; (d) circuit means having an input connected to the useful load for detecting the steady state output power demand of the useful load and (e) logic switching means.

Redlich, R.W.

1987-02-10T23:59:59.000Z

182

Overview of heat transfer and fluid flow problem areas encountered in stirling engine modeling  

SciTech Connect (OSTI)

NASA Lewis Research Center has been managing Stirling engine development programs for over a decade. In addition to contractual programs, this work has included in-house engine testing and development of engine computer models. Attempts to validate Stirling engine computer models with test data have demonstrated that engine thermodynamic losses need better characterization. Various Stirling engine thermodynamic losses and efforts that are underway to characterize these losses are discussed.

Tew, R.C. Jr.

1988-02-01T23:59:59.000Z

183

Modeling for control of a kinematic wobble-yoke Stirling engine  

Science Journals Connector (OSTI)

Abstract In this paper we derive the dynamical model of a four-cylinder double-acting wobble-yoke Stirling engine. In addition to the classical thermodynamics methods that dominate the literature of Stirling mechanisms, we present a control systems viewpoint to analyze the dynamic properties of the engine. We show that the Stirling engine can be viewed as a closed-loop system, in which the pressure variations in the cylinders behave as the feedback control law.

Elosa Garca-Canseco; Alejandro Alvarez-Aguirre; Jacquelien M.A. Scherpen

2015-01-01T23:59:59.000Z

184

Application of hydrated salts in two phase two component Stirling engine regenerators  

SciTech Connect (OSTI)

The use of a two phase two component (TPTC) working fluid in a Stirling has been suggested as one method of increasing the power density of a Stirling engine without raising the mean pressure excessively high. Use of such a working fluid, however causes the regenerator to be totally ineffective. This paper discusses the results of a computer study of a new type of regenerator. These results indicate a marked improvement in performance over the normally regenerated TPTC engine and an ideal gas Stirling engine. An initial conceptual design of how the regenerator may be incorporated into a Stirling engine, and a list of possible regenerator materials is given.

Renfroe, D.A.; Ahlert, A.; Counts, M.

1984-08-01T23:59:59.000Z

185

Applications of biomass Stirling engines for electrification -A case study of rural areas in Bolivia.  

E-Print Network [OSTI]

?? This report provides a study and a simulation of a feasible system configuration for the implementation of a Stirling engine for electrification of rural (more)

Arco Sola, Javier

2014-01-01T23:59:59.000Z

186

Further testing and development of an 11-watt Stirling converter  

SciTech Connect (OSTI)

Three previous IECEC papers describe the development of an 11-watt Radioisotope Stirling Generator (RSG) intended for remote power applications. This paper describes more recent testing and development activities. Testing of the engineering model (EM) was performed to determine the effect of heat rejection temperature, thermal input and initial charge pressure on thermal efficiency. Shock testing of the generator included a drop test and 3 hours of testing in a random vibration environment where g{sup 2}/Hz = 0.04. Endurance testing of a complete Stirling converter continues, with over 15,000 maintenance-free operating hours. Endurance testing of critical subsystems and components has achieved 14,000 to 26,000 hours of operation without failure. Minor changes to the RSG prototype design, based on the development of the EM, are described.

Ross, B.A.; Montgomery, W.L. [Stirling Technology Co., Richland, WA (United States)

1995-12-31T23:59:59.000Z

187

High-frequency thermoacoustic-Stirling heat engine demonstration device  

Science Journals Connector (OSTI)

A small thermoacoustic-Stirling engine demonstration device that can produce sound in excess of 100 dB at 560 Hz has been constructed. The engine consists of a quarter wavelength acoustic resonator with a smaller diameter coaxial regenerator positioned toward the resonators closed end thereby forming an acoustic feedback path around the regenerator. Acoustic oscillations begin spontaneously when the hot heat exchanger adjoining one end of the regenerator is heated to a sufficient temperature. A water stream in a second heat exchanger maintains the opposite end of the regenerator near ambient temperature. This device was inspired by the Backhaus-Swift engine and is a preliminary step in the investigation of regenerator operation at frequencies much higher than may be practical with mechanical or free-piston Stirling engines.

Kevin J. Bastyr; Robert M. Keolian

2003-01-01T23:59:59.000Z

188

Inhomogeneity of fluid flow in Stirling engine regenerators  

SciTech Connect (OSTI)

The literature relating to inhomogeneity of flow regenerators is briefly reviewed. It is noted that, in contrast to other applications of regenerators, relatively little attention has been paid to the consequences of flow inhomogeneity for thermal regeneration in Stirling cycle machines. The construction of regenerator capsules for a large stationary Stirling engine is described. A test rig is developed to measure the gas velocity profile across the face of the packed regenerator capsules under steady flow conditions. Measured flow profiles for a number of different matrix materials and construction techniques are presented, and it is noted that stacked-mesh regenerator matrices tend to display marked inhomogeneities of flow. The consequences of flow inhomogeneity for flow friction and regenerator effectiveness are analyzed theoretically, and approximate formulae deduced. One method for reducing flow inhomogeneity in stacked-screen matrice

Jones, J.D. (School of Engineering Science, Simon Fraser Univ. Burnaby, British Columbia (CA))

1989-10-01T23:59:59.000Z

189

Oscillating flow in a stirling engine heat exchanger  

Science Journals Connector (OSTI)

Three heat exchangers exist in modern Stirling engines: a heater, a cooler, and a regenerator. Here a study that deals principally with tubular heaters and coolers is carried out. The calculation procedure for the oscillating flow heat transfer is presented. Literature sources are studied to find the most suitable correlations by comparing them to each other and to the classical turbulent flow correlations encountered in the literature. The enhancement of heat transfer by means of a few circumferential slots inside the tubes and the pressure losses of oscillatory flow are discussed. Non-circular cross-section conduits with rectangular and triangular cross-sections are investigated and compared to the smooth circular tubes. The increment of the performance of an idealised Stirling engine with slotted heat exchanger tubes is compared to the case with smooth ones. The ratio of the gain in the shaft power and pumping losses is 2.22. The Carnot efficiency increment is 2.7%.

M. Kuosa; K. Saari; A. Kankkunen; T.-M. Tveit

2012-01-01T23:59:59.000Z

190

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT SAIC SOLAR DISH CONCENTRATOR WITH STIRLING ENGINE DECEMBER 2007 CEC5002013068 Prepared for: California Energy Commission: 500-00-034-15 Prepared for: California Energy Commission Hassan Mohammed Contract Manager Linda

191

40 kW Stirling engine for solid fuel  

SciTech Connect (OSTI)

The external combustion in a Stirling engine makes it very attractive for utilization of solid fuels in decentralized combined heat and power (CHP) plants. Only few projects have concentrated on the development of Stirling engines specifically for biomass. In this project a Stirling engine has been designed primarily for utilization of wood chips. Maximum shaft power is 40 kW corresponding to an electric output of 36 kW. Biomass needs more space in the combustion chamber compared to gas and liquid fuels, and a large heat transfer area is necessary. The design of the new Stirling engine has been adapted to the special demands of combustion of wood chips, resulting in a large engine compared to engines for gas or liquid fuels. The engine has four-cylinders arranged in a square. The design is made as a hermetic unit, where the alternator is built into the pressurized crankcase so that dynamic seals are avoided. Grease lubricated bearings are used in a special designed crank mechanism, which eliminates guiding forces on the pistons Helium is used as working gas at 4 MPa mean pressure. The first test of the 40 kW engine with natural gas as fuel has been made in the laboratory, and the results are in agreement with predicted results from simulation programs. The wood chips combustion system has been tested for some time with very promising results. When the laboratory test of the engine is finished, the test of the complete system will be initiated. The paper describes the engine and results from the test program. Expectations to maintenance and operation problems are also discussed.

Carlsen, H. [Technical Univ. of Denmark, Lyngby (Denmark). Dept. for Energy Engineering; Ammundsen, N. [Voelund R and D Centre, Kolding (Denmark); Traerup, J. [REKA A/S, Aars (Denmark)

1996-12-31T23:59:59.000Z

192

Simulational nanoengineering: Molecular dynamics implementation of an atomistic Stirling engine  

Science Journals Connector (OSTI)

A nanoscale-sized Stirling engine with an atomistic working fluid has been modeled using molecular dynamics simulation. The design includes heat exchangers based on thermostats, pistons attached to a flywheel under load, and a regenerator. Key aspects of the behavior, including the time-dependent flows, are described. The model is shown to be capable of stable operation while producing net work at a moderate level of efficiency.

D. C. Rapaport

2009-04-30T23:59:59.000Z

193

Automotive Stirling Engine Development Program. RESD Summary report  

SciTech Connect (OSTI)

This is the final report compiling a summary of the information presented and discussed at the May 1983 Automotive Stirling Engine (AES) Reference Engine System Design (RESD) review held at the NASA Lewis Research Center. The design of the engine and its auxiliaries and controls is described. Manufacturing costs in production quantity are also presented. Engine system performance predictions are discussed and vehicle integration is developed, along with projected fuel economy levels.

Not Available

1984-05-01T23:59:59.000Z

194

Externally heated valve engine -- An alternative to the Stirling engine  

SciTech Connect (OSTI)

A new concept of the Externally Heated Valve (EHV) engine is presented. The principle of the engine operation is described in the introduction to the paper. Heat delivered to the working medium (air) in the heater, or several heaters working commutatively, can come from a combustion chamber or other heat generator such as nuclear reactors or solar collectors. The engine construction is original entirely different from the well-known Stirling engine. New results of the EHV engine computer modeling are presented. This is connected with a new kind of the annular heater applied to the EHV engine. A whirl motion inside the heater is caused to ensure the proper condition of the heat exchanger during the whole engine cycle. Three heaters working commutatively have been considered in this model. Comparisons between the power and efficiency of the Stirling engine and EHV engine have been performed for the same engine capacity, rotational frequency, maximum and minimum temperatures of the working gas and for the same mean pressures of both the engine cycles. The power of the EHV engine is in this case over three times higher than the Stirling engine power, while the efficiency of both the engines is almost the same.

Kazimierski, Z. [Tohoku Gakuin Univ., Sendai, Miyagi (Japan). Research Div. in Mechanical Engineering; Brzeski, L. [Technical Univ. of Lodz (Poland). Dept. of Mechanical Engineering

1996-12-31T23:59:59.000Z

195

0^T^^^tf^*nl~~~~ ORNL/CON-154 Nonlinear Analysis of Stirling  

E-Print Network [OSTI]

. #12;ORNL/CON-154 Engineering Technology Division NONLINEAR ANALYSIS OF STIRLING ENGINE THERMODYNAMICS encouragement. #12;NONLINEAR ANALYSIS OF STIRLING ENGINE THERMODYNAMICS R. D. Banduric N. C. J. Chen ABSTRACT Numerical solutions to a simplified mathematical formula- tion for Stirling engine thermodynamics, including

Oak Ridge National Laboratory

196

Constrained control framework for a stand-alone hybrid (Stirling engine)/supercapacitor power generation system  

Science Journals Connector (OSTI)

Abstract In this paper, a complete control architecture is proposed for the voltage conditioning stage of a hybrid power generation system composed of a Stirling engine coupled with a supercapacitor. Such a solar energy-based generation system aims at providing electricity to off-grid regions. The novelty of the proposed architecture is that it completely handles constraints on all the state variables of the electric stage while providing near to optimal performances in terms of settling time. The derivation of the control law enables a deep understanding of the main issues involved in the success of the closed-loop control. Moreover, the resulting feedback laws are real-time compatible and are given in a complete explicit form.

M. Alamir; M.A. Rahmani; D. Gualino

2014-01-01T23:59:59.000Z

197

Efficiency and Emissions Measurement of a Stirling-Engine-Based Residential Microcogeneration System Run on Diesel and Biodiesel  

Science Journals Connector (OSTI)

Emissions from current Stirling engine burners can be 10 times lower than those of internal combustion (IC) engines based on Otto or Diesel cycles without catalytic converters. ... In their review paper, Lapuerta et al.(9) found that, in general, engines running on biodiesel had a thermal efficiency similar to that of conventional diesel and particulate, total UHC, polyaromatic hydrocarbon (PAH), and CO emissions much lower than those of conventional diesel. ... Hoagland, L. C.; Percival, W. H. Proceedings of the 13th Intersociety Energy Conversion Engineering Conference; Society of Automotive Engineers: San Diego, CA, 1978; pp 1865? 1871. ...

Amir A. Aliabadi; Murray J. Thomson; James S. Wallace; Tommy Tzanetakis; Warren Lamont; Joseph Di Carlo

2009-01-16T23:59:59.000Z

198

Cycle Analysis of a Stirling Engine Including Void Volumes and Regenerator Effectiveness  

Science Journals Connector (OSTI)

The Stirling engine has been widely studied by considerable scientific staff as it has many favorable characteristics, such as less pollution, silent operation, high reliability, simple configuration and multi-fuel capability. Firstly, the basic configuration ... Keywords: Stirling engine, void volumes, regenerator effectiveness, efficiency

Yingxiao Yu; Zhaocheng Yuan; Jiayi Ma; Qing Zhu

2012-04-01T23:59:59.000Z

199

Automotive Stirling Engine Development Program. Technical progress report for period January 1-March 29, 1980  

SciTech Connect (OSTI)

The activities performed on the Stirling Reference Engine System Design; components and subsystems; P-40 baseline Stirling engine installation and test; the first automotive engine to be built on the program; computer development activities; and technical assistance to the Government are summarized. The overall program philosophy is outlined, and data and results are given.

Not Available

1980-06-01T23:59:59.000Z

200

Stirling Engines for Low-Temperature Solar-Thermal-Electric Power Generation  

E-Print Network [OSTI]

Stirling Engines for Low-Temperature Solar-Thermal- Electric Power Generation Artin Der Minassians-Temperature Solar-Thermal-Electric Power Generation by Artin Der Minassians Karshenasi (Amirkabir University-Temperature Solar-Thermal-Electric Power Generation Copyright c 2007 by Artin Der Minassians #12;1 Abstract Stirling

Sanders, Seth

Note: This page contains sample records for the topic "rsl energy stirling" 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

A comparison of radioisotope Brayton and Stirling system for lunar surface mobile power  

Science Journals Connector (OSTI)

A study was performed by the Rocketdyne Division of Rockwell 2.5?kWe modular dynamic isotope power system (DIPS) using a Stirling power conversion system. The results of this study were compared with similar results performed under the DIPS program using a Brayton power conversion system. The study indicated that the Stirling power module has 20% lower mass and 40% lower radiator area than the Brayton module. However the study also revealed that because the Stirling power module requires a complex heat pipe arrangment to transport heat from the isotope to the Stirling heater head and a pumped NaK heat rejection loop the Stirling module is much more difficult to integrate with the isotope heat source and heat rejection system.

Richard B. Harty

1991-01-01T23:59:59.000Z

202

Simulation of a new grid-connected hybrid generation system with Stirling engine and wind turbine  

Science Journals Connector (OSTI)

A detail model including all mechanical and electrical aspects is necessary to fully study hybrid grid operation. In this paper a new grid-connected hybrid generation system with a Stirling engine and a wind turbine which are connected to a grid through a common dc bus is presented. The Stirling is more efficient than photo voltaic array and its combination with the wind turbine can create an efficient hybrid system. Fatigue Aerodynamics Structures and Turbulence and Simulink/MATLAB are used to model the mechanical parts of the wind turbine Stirling engine and electrical parts. Field oriented control method is developed on voltage source converter. Power signal feedback method is implemented to determine generators reference shaft speed in hybrid system. Permanent magnet synchronous generator is used in the wind turbine and Stirling engine. Simulation results show that a new hybrid generation system with Stirling and wind turbine can work like other hybrid system and has suitable performance.

H. Shariatpanah; M. Zareian Jahromi; R. Fadaeinedjad

2013-01-01T23:59:59.000Z

203

Stirling Solar cooling in office faades:.  

E-Print Network [OSTI]

??The requirements, comfort needs and expectations for facades have increased, so has the need for energy efficient design. Present climate systems are using a lot (more)

Streefkerk, W.

2011-01-01T23:59:59.000Z

204

Third generation development of an 11-watt Stirling converter  

SciTech Connect (OSTI)

This paper describes recent design enhancements, performance results, and development of an artificial neural network (ANN) model related to the Radioisotope Stirling Generator (RSG), an 11-watt converter designed for remote power applications. Design enhancements include minor changes to improve performance, increase reliability, facilitate fabrication and assembly for limited production, and reduce mass. Innovative modifications were effected to increase performance and improve reliability of the vacuum foil insulation (VFI) package and linear alternator. High and low operating temperature acceptance testing of the Engineering Model (EM) demonstrated the robust system characteristics. These tests were conducted for 1 week of operation each, with rejector temperatures of 95 C and 20 C, respectively. Endurance testing continues for a complete Stirling converter, the Development Model (DM), with over 25,000 hours of maintenance-free operation. Endurance testing of flexures has attained over 540 flexure-years and endurance testing of linear motors/alternators has achieved nearly 27,000 hours of operation without failure. An ANN model was developed and tested successfully on the DM. Rejection temperatures were varied between 3 C and 75 C while load voltages ranged between engine stall and displacer overstroke. The trained ANN model, based solely on externally measured parameters, predicted values of piston amplitude, displacer amplitude, and piston-displacer phase angle within {+-}2% of the measured values over the entire operating regime. The ANN model demonstrated its effectiveness in the long-term evaluation of free-piston Stirling machines without adding the complexity, reduced reliability, and increased cost of sophisticated diagnostic instrumentation.

Montgomery, W.L.; Ross, B.A.; Penswick, L.B. [Stirling Technology Co., Kennewick, WA (United States)

1996-12-31T23:59:59.000Z

205

Flexure bearing support, with particular application to Stirling machines  

DOE Patents [OSTI]

The use of flexures in the form of flat spiral springs cut from sheet metal materials provides support for coaxial non-rotating linear reciprocating members in power conversion machinery, such as Stirling cycle engines or heat pumps. They permit operation with little or no rubbing contact or other wear mechanisms. The relatively movable members include one member having a hollow interior structure within which the flexures are located. The flexures permit limited axial movement between the interconnected members, but prevent adverse rotational movement and radial displacement from their desired coaxial positions. 8 figs.

Beckett, C.D.; Lauhala, V.C.; Neely, R.; Penswick, L.B.; Ritter, D.C.; Nelson, R.L.; Wimer, B.P.

1996-06-04T23:59:59.000Z

206

Flexure bearing support, with particular application to stirling machines  

DOE Patents [OSTI]

The use of flexures in the form of flat spiral springs cut from sheet metal materials provides support for coaxial nonrotating linear reciprocating members in power conversion machinery, such as Stirling cycle engines or heat pumps. They permit operation with little or no rubbing contact or other wear mechanisms. The relatively movable members include one member having a hollow interior structure within which the flexures are located. The flexures permit limited axial movement between the interconnected members, but prevent adverse rotational movement and radial displacement from their desired coaxial positions.

Beckett, Carl D. (Vancouver, WA); Lauhala, Victor C. (Richland, WA); Neely, Ron (Kennewick, WA); Penswick, Laurence B. (Richland, WA); Ritter, Darren C. (Benton City, WA); Nelson, Richard L. (Pasco, WA); Wimer, Burnell P. (Boise, ID)

1996-01-01T23:59:59.000Z

207

Performance of a Stirling engine regenerator having finite mass  

SciTech Connect (OSTI)

The performance of a Stirling engine regenerator subjected to sinusoidal mass flow rate and pressure variation is analyzed. It is shown that cyclic variations in the temperature of the matrix due to its finite mass lead to an increase in the apparent regenerator effectiveness, but a decrease in engine power. Approximate closed-form expressions for both of these effects are deduced. The results of this analysis are compared with the predictions of a finite-element system model, and good agreement is found.

Jones, J.D.

1986-10-01T23:59:59.000Z

208

Stirling converters for space dynamic power concepts with 2 to 130 W{sub e} output  

SciTech Connect (OSTI)

Three innovative Stirling converter concepts are described. Two concepts are based on Pluto Fast Flyby (PFF) mission requirements, where two General Purpose Heat Source (GPHS) modules provide the thermal input. The first concept (PFF2) considers a power system with two opposed Stirling converters; the second concept (PFF4) considers four opposed Stirling converters. For both concepts the Stirling converters are designed to vary their power production capability to compensate for the failure of one Stirling converter. While the net thermal efficiency of PFF4 is a few percentage points lower than PFF2, the total Stirling converter mass of PFF4 is half that for PFF2. The third concept (ITTI) is designed to supply 2 watts of power for weather stations on the Martian surface. The predicted thermal performance of the ITTI is low compared to PFF2 and PFF4, yet the ITTI concept offers significant advantages compared to currently available power systems at the 2-watt power level. All three concepts are based on long-life technology demonstrated by an 11-watt output Stirling generator that as of March 1995 has accumulated over 15,000 operating hours without maintenance.

Ross, B.A. [Stirling Technology Co., Richland, WA (United States)

1995-12-31T23:59:59.000Z

209

Results of the Boeing/DOE DECC Phase 1 stirling engine project  

SciTech Connect (OSTI)

Phase I of Boeing Company/DOE Dish Engine Critical Component (DECC) Project started in April of 1998 and was completed in 1999. The Phase I objectives, schedule, and test results are presented in this paper. These data shows the power, energy, and mirror performance are comparable to that when the hardware was first manufactured 15 years ago. During the Phase I and initial Phase II test period the on-sun system accumulated over 3,800 hours of solar-powered operating time, accumulated over 4,500 hours of concentrator solar tracking time, and generated over 50,000 kWh of grid-compatible electrical energy. The data also shows that the system was available 95 {percent} of the time when the sun's insolation level was above approximately 300 w/m{sup 2}, and achieved a daily energy efficiency between 20{percent} and 26{percent}. A second concentrator was refurbished during Phase I and accumulated over 2,200 hours of solar track time. A second Stirling engine operated 24 hours a day in a test cell in Sweden and accumulated over 6,000 test hours. Discussion of daily operation shows no major problems encountered during the testing that would prevent commercialization of the technology. Further analysis of the test data shows that system servicing with hydrogen, coolant and lubricating oil should not be a major O and M cost.

STONE,KENNETH W.; CLARK,TERRY; NELVING,HANS; DIVER JR.,RICHARD B.

2000-03-02T23:59:59.000Z

210

An integrated geometric and thermodynamic performance model of the 2.670 Stirling Engine  

E-Print Network [OSTI]

2.670 is a required mechanical engineering class taught during the Independent Activities Period (IAP) at MIT in which each student constructs a Stirling Engine. For the most part, all of the engine parts are uniform, but ...

Sohn, Munhee, 1981-

2004-01-01T23:59:59.000Z

211

Thermodynamic analysis of onset characteristics in a miniature thermoacoustic Stirling engine  

Science Journals Connector (OSTI)

This paper analyzes the onset characteristics of a miniature thermoacoustic Stirling heat engine using the thermodynamic analysis method. The governing equations of components are reduced from the basic thermo...

Xin Huang; Gang Zhou; Qing Li

2013-06-01T23:59:59.000Z

212

High pressure/high temperature hydrogen permeability in candidate stirling engine alloys  

Science Journals Connector (OSTI)

Hydrogen permeation tests of eight high-temperature engineering alloys were conducted in 20.7 MPa hydrogen at 923 to 1088 K for assessing suitability in Stirling engine application for heater head and heater head...

S. Bhattacharyya; E. J. Vesely; V. L. Hill

1982-03-01T23:59:59.000Z

213

The Free Piston Stirling Principle as Prime Mover for Alternant Hydraulic Propulsion Systems  

Science Journals Connector (OSTI)

The Stirling engine, considering the synthesis presented in [1...], pp. 159160, has as major advantages: continuous, external combustion is associated with low emissions and noise, free choice of the fuel, no co...

Horia Abaitancei; Cristi Irimia

2013-01-01T23:59:59.000Z

214

Creep-rupture and fractographic analysis of candidate stirling engine superalloys tested in air  

Science Journals Connector (OSTI)

The creep-rupture behavior of six candidate Stirling engine iron-base superalloys was determined in air....1,2 In this paper, microstructural and fractographic aspects of the ruptured specimens are discussed, wit...

S. Bhattacharyya

1984-03-01T23:59:59.000Z

215

On Integration of Mirror Collector and Stirling Engine for Solar Power System  

Science Journals Connector (OSTI)

In the current work, several types of solar collectors, i.e. parabolic, cylindrical, and mirrors, were designed and fabricated. The aim of this study is to integrate the optimum collector with Stirling engine in ...

B.F. Yousif; Ammar Al-Shalabi; Dirk G. Rilling

2011-01-01T23:59:59.000Z

216

Dish/stirling hybrid-receiver  

DOE Patents [OSTI]

A hybrid high-temperature solar receiver is provided which comprises a solar heat-pipe-receiver including a front dome having a solar absorber surface for receiving concentrated solar energy, a heat pipe wick, a rear dome, a sidewall joining the front and the rear dome, and a vapor and a return liquid tube connecting to an engine, and a fossil fuel fired combustion system in radial integration with the sidewall for simultaneous operation with the solar heat pipe receiver, the combustion system comprising an air and fuel pre-mixer, an outer cooling jacket for tangentially introducing and cooling the mixture, a recuperator for preheating the mixture, a burner plenum having an inner and an outer wall, a porous cylindrical metal matrix burner firing radially inward facing a sodium vapor sink, the mixture ignited downstream of the matrix forming combustion products, an exhaust plenum, a fossil-fuel heat-input surface having an outer surface covered with a pin-fin array, the combustion products flowing through the array to give up additional heat to the receiver, and an inner surface covered with an extension of the heat-pipe wick, a pin-fin shroud sealed to the burner and exhaust plenums, an end seal, a flue-gas diversion tube and a flue-gas valve for use at off-design conditions to limit the temperature of the pre-heated air and fuel mixture, preventing pre-ignition.

Mehos, Mark S. (Boulder, CO); Anselmo, Kenneth M. (Arvada, CO); Moreno, James B. (Albuquerque, NM); Andraka, Charles E. (Albuquerque, NM); Rawlinson, K. Scott (Albuquerque, NM); Corey, John (Melrose, NY); Bohn, Mark S. (Golden, CO)

2002-01-01T23:59:59.000Z

217

A study of the reliability of Stirling engines for distributed receiver systems  

SciTech Connect (OSTI)

The objective of this study was to examine the reliability of existing and improved Stirling engine concepts for dispersed solar dish/electric applications in the 25--50 kW/sub e/ range. Five current kinematic Stirling engine designs have the capability to meet or exceed the 32% system efficiency goal of the DOE Solar Thermal Program. Experience with the Vanguard Solar-Dish/Stirling Engine module demonstrated that the 32% efficiency goal is realistic, but that improved Stirling engine reliability is necessary for successful implementation of dispersed solar power systems. A review of historical Stirling engine data illustrated that the three major reliability issues with kinematic Stirling engines are the piston-rod seals, engine hot parts and power control/drive systems. A specific kinematic engine concept that appears to have the potential for meeting the 50,000-hour operating lifetime requirement of solar power systems has a pressurized crankcase to reduce piston-rod seal problems, an indirectly heated hot-end section using heat pipes to smooth out temperature gradients in the heater tubes, and a variable-angle swashplate for power control. Further development efforts are required to establish reliability and validate performance goals of these engine concepts. 30 refs., 13 figs., 8 tabs.

Holtz, R.E.; Uherka, K.L.

1988-11-01T23:59:59.000Z

218

Process and apparatus for reducing the loss of hydrogen from Stirling engines  

SciTech Connect (OSTI)

A Stirling engine assembly is described which defines a working gas volume therein, the Stirling engine assembly comprising: a working gas reservoir for storing a working gas at a pressure greater than pressure of the working gas in the working volume of the Stirling engine; a trap cell operatively connected between an outlet of the reservoir and the Stirling engine working volume. The trap cell includes an enclosure having porous windows at either end thereof and a sorbent with an affinity for water vapor therein, such that water vapor adsorbed on the sorbent diffuses into the hydrogen passing from the reservoir into the working engine; a compressor means for drawing working gas from the Stirling engine working volume, through the trap cell and pumping the working gas into the hydrogen reservoir. The sorbent in the trap cell at the reduced pressure caused by the compressor adsorbs water vapor from the working gas such that substantially dry working gas is pumped by the compressor into the reservoir. The working gas is doped with water vapor by the tank cell as it passes into the Stirling engine and is dried by the trap cell as it is removed from the working engine for storage in the reservoir to prevent condensation of water vapor in the reservoir.

Alger, D.L.

1987-03-24T23:59:59.000Z

219

Stirling engine power control and motion conversion mechanism  

DOE Patents [OSTI]

A motion conversion device for converting between the reciprocating motion of the pistons in a Stirling engine and the rotating motion of its output shaft, and for changing the stroke and phase of the pistons, includes a lever pivoted at one end and having a cam follower at the other end. The piston rod engages the lever intermediate its ends and the cam follower engages a cam keyed to the output shaft. The lever pivot can be moved to change the length of the moment arm defined between the cam follower and the piston rod the change the piston stroke and force exerted on the cam, and the levers can be moved in opposite directions to change the phase between pistons.

Marks, David T. (Birmingham, MI)

1983-01-01T23:59:59.000Z

220

Exergetical analysis and design optimisation of the Stirling engine  

Science Journals Connector (OSTI)

A detailed design optimisation study of an endo- and exoirreversible Stirling engine is carried out. After energetic, entropic and exergetic analyses of the hot-end and cold-end heat exchangers of the engine, an adapted model of the engine, including the heat exchangers and the regenerator, is proposed to optimise the distribution of the limited heat exchangers' total area. Power generation, thermal efficiency, entropy generation and exergetic efficiency are used as successive objective functions. This approach, based on finite dimension thermodynamics, shows the influence of the limiting physical constraints and time-dependant parameters, such as heat transfer, on the optimisation of the machine operation. It allows us to find the best distribution of heat exchanger area for the optimisation of each objective function.

N. Martaj; L. Grosu; P. Rochelle

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rsl energy stirling" 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

Development of Single Stage Stirling Cooler for Space Use  

Science Journals Connector (OSTI)

A single?stage Stirling cooler has been developed and tested for space applications which include instrument or detector cooling and a supplemental cooler for the cryogenic system. The mechanical cooler is a free displacer type and consists of a compressor a cold head and a connecting tube. The features of this cooler are a moving cylinder clearance seal by diaphragm spring twin pole magnet system and pneumatically driven displacer. The typical cooling power is 2 W at 80 K and the input power to the cooler is 50 W without driver electronics. The total weight of the cooler is 4.2 kg. The engineering and the flight models of the cooler have been fabricated and evaluated to verify the capability for three space missions. This paper describes the design of the cooler and the results from verification tests including cooler performance test thermal vacuum test vibration test and lifetime test.

K. Narasaki; S. Tsunematsu; K. Kanao; K. Otsuka; S. Hoshika; K. Fujioka; K. Tsurumi; M. Hirabayashi

2006-01-01T23:59:59.000Z

222

Parametric Analysis Of A Free Piston Stirling Engine For Spacecraft Power Applications With A Radioisotope Heat Source.  

E-Print Network [OSTI]

??Stirling engines are promising candidates for applications where air breathing engines cannot be used. Self contained engines capable of operating independently of the environment are (more)

Bhaskaran, Ramprasad

2012-01-01T23:59:59.000Z

223

Theoretical and experimental study on regenerative rotary displacer Stirling engine  

SciTech Connect (OSTI)

Recently a quite new type of hot air engine called rotary displacer engine, in which the displacer is a rotating disk enclosed in a cylinder, has been conceived and developed. The working gas, contained in a notch excavated in the disk, is heated and cooled alternately, on account of the heat transferred through the enclosing cylinder that is heated at one side and cooled at the opposite one. The gas temperature oscillations cause the pressure fluctuations that get out mechanical power acting on a power piston. In order to attempt to increase the performances for this kind of engine, the authors propose three different regeneration methods. The first one comprises two coaxial disks that, revolving in opposite ways, cause a temperature gradient on the cylinder wall and a regenerative axial heat conduction through fins shaped on the cylinder inner wall. The other two methods are based on the heat transferred by a proper closed circuit that in one case has a circulating liquid inside and in the other one is formed by several heat pipes working each one for different temperatures. An engine based on the first principle, the Regenerative Tandem Contra-Rotary Displacer Stirling Engine, has been realized and experimented. In this paper experimental results with and without regeneration are reported comparatively with a detailed description of the unity. A basic explanation of the working principle of this engine and a theoretical analysis investigating the main influential parameters for the regenerative effect are done. This new rotating displacer Stirling engines, for their simplicity, are expected to attain high rotational speed especially for applications as demonstration and hobby unities.

Raggi, L.; Katsuta, Masafumi [Waseda Univ., Tokyo (Japan); Isshiki, Naotsugu [Nihon Univ., Tokyo (Japan); Isshiki, Seita [Isshiki R and D Lab., Tokyo (Japan)

1997-12-31T23:59:59.000Z

224

Commercialization possibilities of Stirling engine technology for microscale power generation in Sweden; MicroStirling.  

E-Print Network [OSTI]

?? The presented masters thesis has evaluated the possibility of commercializing a research project at the Royal Institute of Technologys (KTH) Department of Energy Technology (more)

Backman, Peter

2012-01-01T23:59:59.000Z

225

Test results and facility description for a 40-kilowatt Stirling engine  

SciTech Connect (OSTI)

NASA Lewis Research Center is conducting tests with a 40-kilowatt, P40 Stirling engine manufactured by United Stirling of Malmoe, Sweden. This experimental research is part of a project whose overall goal is to demonstrate by Sept. 1984 the potential advantages this alternative engine offers for powering highway vehicles. The P40 was designed by United Stirling to be a reliable workhorse engine for testing and developing specific components (e.g., the heater head, piston rod seals, and piston rings). Because it was intended as a rugged experimental engine, the P40 is too heavy to be a practical automotive Stirling engine. Nevertheless, it was selected as the project's baseline engine because it was an available, convenient starting point from which to derive Stirling engine operating experience. Consequently, while the MOD I automotive Stirling engine is being designed and built for the project, several P40 engines are being evaluated in test cells and in vehicles by organizations involved in the development effort. NASA P40 tests are being conducted to establish the engine's baseline performance and emissions characteristics for comparison with other engines, to provide data for validating computer models, to identify problem areas which must be addressed in future Stirling engine designs, and to evaluate the performance of advanced systems or components installed in the engine. The NASA P40 engine testing activity which began in April 1979 is emphasized. Included is a description of the P40 engine along with its control systems and auxiliaries. Also described are the engine test support facilities, instrumentation, data acquisition systems, and experimental procedures. Finally, engine operating experience is discussed, and some initial test results are presented.

Kelm, G.G.; Cairelli, J.E.; Walter, R.J.

1981-06-01T23:59:59.000Z

226

Test results and facility description for a 40-kilowatt Stirling engine  

SciTech Connect (OSTI)

NASA Lewis Research Center is conducting tests with a 40-kilowatt, P40 Stirling engine manufactured by United Stirling of Malmoe, Sweden, This experimental research is part of a project whose overall goal is to demonstrate by September 1984 the potential advantages this alternative engine offers for powering highway vehicles. The P40 was designed by United Stirling to be a reliable workhorse engine for testing and developing specific components (e.g., the heater head, piston rod seals, and piston rings). Because it was intended as a rugged experimental engine, the P40 is too heavy to be a practical automotive Stirling engine. Nevertheless, it was selected as the project's baseline engine because it was an available, convenient starting point from which to derive Stirling engine operating experience. Consequently, while the MOD I automotive Stirling engine is being designed and built for the project, several P40 engines are being evaluated in test cells and in vehicles by organizations involved in the development effort. NASA P40 tests are being conducted to establish the engine's baseline performance and emissions characteristics for comparison with other engines, to provide data for validating computer models, to identify problem areas which must be addressed in future Stirling engine designs, and to evaluate the performance of advanced systems or components installed in the engine. The NASA P40 engine testing activity which began in April 1979 is emphasized. Included is a description of the P40 engine along with its control systems and auxiliaries. Also described are the engine test support facilities, instrumentation, data acquisition systems, and experimental procedures. Finally, engine operating experience is discussed, and some initial test results are presented.

Kelm, G.G.; Cairelli, J.E.; Walter, R.J.

1981-06-01T23:59:59.000Z

227

Experiments with a pressure-driven Stirling refrigerator with flexible chambers  

Science Journals Connector (OSTI)

We report on the design and experimental testing of a Stirling refrigerator that uses air as the working fluid and where the conventional piston-cylinder assemblies are replaced by pressure-driven flexible chambers. The two chambers are periodically compressed by pneumatic actuators resulting in airflow through the regenerator and in a net temperature difference between the chambers. An experimental setup is used to investigate the performance of the refrigerator under different operating conditions with particular attention to actuation frequencies driving pressure differences and phase angles between the two inputs. The time constant of the temperature difference between the two chambers is determined and the temperature difference is measured as a function of the system parameters. The results of several tests conducted under different operating conditions show that the refrigerating effect is very robust and allows good performance even for modulated inputs. The frequency response is radically different from that of a traditional motion-driven device. This work suggests that mechanical to thermal energy conversion devices based on this principle can be successfully powered by human motion.

Patrick McFarlane; Jonathan Suire; Mihir Sen

2014-01-01T23:59:59.000Z

228

Simulation of the instantaneous free piston Stirling engine-electrical load interaction  

SciTech Connect (OSTI)

In this paper the authors consider a gamma type free piston engine (that is, a configuration with a power piston cylinder and a separate displacer cylinder) with the MARTINI configuration (that is, with a free piston but a kinematically driven displacer). In the modeled engine, the displacer is driven by an electrical motor and there are two symmetrical, free, power pistons. This configuration ensures a complete balancing of the engine. The free pistons bear the moving parts of the linear electric alternators. This engine may be considered for solar to electrical energy conversion for land or space applications, for instance. A dynamic simulation of this engine has been developed using a decoupled analysis. The motion equation of the free piston induces a strong coupling between the electrical load and the thermodynamics inside the free piston Stirling engine. From the thermodynamics point of view, the piston-displacer phase lag is an important parameter. It is shown that if the electrical circuit elements (R-L-C) are constants, the phase lag between the free pistons and displacer motions is far from the optimum. However this phase lag can be controlled by means of a variable electrical resistance. For both cases of stand-alone engine with an independent electrical load, or grid-connected engine, it is shown how one can in a very simple way multiply the net electrical power by a factor 4 to 10 and the efficiency by a factor 1.25 to 2 without any engine geometry modification.

Mehdizadeh, N.S.; Stouffs, P.

1998-07-01T23:59:59.000Z

229

Abstract A control-based analysis and characterization of a free-piston Stirling engine is presented, and proposed as a  

E-Print Network [OSTI]

Abstract ­ A control-based analysis and characterization of a free-piston Stirling engine. The results show promising potential in utilizing small-scale free-piston Stirling engines as portable power. The motivation details are discussed more thoroughly in [1]. Stirling engines are typically regarded

Barth, Eric J.

230

The effect of component efficiency and operating conditions on the 50-kW dish Stirling system in Riyadh, Saudia Arabia  

SciTech Connect (OSTI)

This paper deals with the development of a weather data base and the performance prediction of a 50-kW dish Stirling system. An analysis of direct solar insolation data for 1985 from the site in Riyadh, Saudi Arabia was made to determine the available solar energy. A parameter study was done of the effects of component efficiencies and operating conditions on instantaneous and yearly average system efficiency using the prepared weather data. The system performance was found to be most affected by wind, mirror reflectivity, and exact placement of the receiver in the focal point of the mirror.

Noyes, G.W. (Deutsche Forshungsanstait fur Luft-und Raumfahrt, Inst. fur Technische Thermodynamik, Pfaffenwaldrign 38-40, 7000 Stuttgart 80 (DE))

1990-11-01T23:59:59.000Z

231

Status of an advanced radioisotope space power system using free-piston Stirling technology  

SciTech Connect (OSTI)

This paper describes a free-piston Stirling engine technology project to demonstrate a high efficiency power system capable of being further developed for deep space missions using a radioisotope (RI) heat source. The key objective is to develop a power system with an efficiency exceeding 20% that can function with a high degree of reliability for 10 years or longer on deep space missions. Primary issues being addressed for Stirling space power systems are weight and the vibration associated with reciprocating pistons. Similar weight and vibration issues have been successfully addressed with Stirling cryocoolers, which are the accepted standard for cryogenic cooling in space. Integrated long-life Stirling engine-generator (or convertor) operation has been demonstrated by the terrestrial Radioisotope Stirling Generator (RSG) and other Stirling Technology Company (STC) programs. Extensive RSG endurance testing includes more than 40,000 maintenance-free, degradation-free hours for the complete convertor, in addition to several critical component and subsystem endurance tests. The Stirling space power convertor project is being conducted by STC under DOE Contract, and NASA SBIR Phase II contracts. The DOE contract objective is to demonstrate a two-convertor module that represents half of a nominal 150-W(e) power system. Each convertor is referred to as a Technology Demonstration Convertor (TDC). The ultimate Stirling power system would be fueled by three general purpose heat source (GPHS) modules, and is projected to produce substantially more electric power than the 150-watt target. The system is capable of full power output with one failed convertor. One NASA contract, nearing completion, uses existing 350-W(e) RG-350 convertors to evaluate interactivity of two back-to-back balanced convertors with various degrees of electrical and mechanical interaction. This effort has recently provided the first successful synchronization of two convertors by means of parallel alternator electrical connections, thereby reducing vibration levels by more than an order of magnitude. It will also demonstrate use of an artificial neural network to monitor system health without invasive instrumentation. The second NASA contract, begun in January 1998, will develop an active adaptive vibration reduction system to be integrated with the DOE-funded TDC convertors. Preliminary descriptions and specifications of the Stirling convertor design, as well as program status and plans, are included.

White, M.A,; Qiu, S.; Erbeznik, R.M.; Olan, R.W.; Welty, S.C.

1998-07-01T23:59:59.000Z

232

Analysis and Design of a High Power Density Axial Flux Permanent Magnet Linear Synchronous Machine Used for Stirling System  

Science Journals Connector (OSTI)

a high power density axial flux permanent magnet linear synchronous machine and the stirling system will be introduced. This machine is a tubular axial flux permanent magnet machine. It comprises two parts: stator and mover. With the 2D finite-element ... Keywords: permanent magnet, stirling engine, linear motor

Ping Zheng; Xuhui Gan; Lin Li

2010-09-01T23:59:59.000Z

233

Progress in Developing a New 5 Kilowatt Free-Piston Stirling Space Convertor  

SciTech Connect (OSTI)

The NASA Vision for Exploration of the Moon envisions a nuclear reactor coupled with a free-piston Stirling convertor at a power level of 30-40 kWe. In the 1990s, Mechanical Technology, Inc.'s Stirling Engine Systems Division (now a part of Foster-Miller, Inc.) developed a 25 kWe free piston Stirling Space Power Demonstrator Engine under the SP-100 program. This system consisted of two 12.5 kWe engines connected at their hot ends and mounted in tandem to cancel vibration. Recently, NASA and DoE have been developing dual 55 We and 80 We Stirling convertor systems for use with radioisotope heat sources. Total test times of all convertors in this effort exceed 120,000 hours. Recently, NASA began a new project with Auburn University to develop a 5 kWe, single convertor for use in the Lunar power system. Goals of this development program include a specific power in excess of 140 We/kg at the convertor level, lifetime in excess of five years and a control system that will safely manage the convertors in case of an emergency. Auburn University awarded a subcontract to Foster-Miller, Inc. to undertake development of the 5 kWe Stirling Convertor Assembly. The characteristics of the design along with progress in developing the system will be described.

Brandhorst, Henry W. Jr.; Kirby, Raymond L. [Space Research Institute, 231 Leach Center, Auburn University, Auburn University, AL, 36849-5320 (United States); Chapman, Peter A. [Foster-Miller, Inc., 431 New Karner Rd., Albany, NY, USA 12205 (United States)

2008-01-21T23:59:59.000Z

234

Scaling laws for free piston Stirling engine design: Benefits and challenges of miniaturization  

Science Journals Connector (OSTI)

Abstract This work explores the scaling effects for FPSE (free piston Stirling engines), which are known for their simple architecture and potentially high thermodynamic performances. Scaling laws are given and their potential for miniaturization is highlighted. A simple model which allows the design of the geometrical parameters of the heat exchangers, the regenerator and the masses of the pistons is proposed. It is based on the definition of six characteristic dimensionless groups. They are derived from the physics underlying the behavior of the free piston Stirling machine and their relevancy is backed up by comparisons between documented Stirling engines from the literature. Keeping constant values for each group throughout the scaling range theoretically ensures constant performance. The main losses of Stirling engine (heat conduction loss, reheat loss in the regenerator, pressure drop and gas-spring hysteresis) can be expressed as a function of the geometrical and operating parameters. Additionally, the consequences of leakage due to the manufacturing precision of pistons architectures are underlined. From the proposed scaling laws, potential power and efficiency of Stirling cycle engines at a millimeter scale can be anticipated. It appears that the power density increases with miniaturization. It is also shown that the dynamic masses related to the engine size are increased when scaling down and that the gap leakage presents the highest detrimental effects on the efficiency. These results call for dedicated architectures for micro-engines.

Fabien Formosa; Luc G. Frchette

2013-01-01T23:59:59.000Z

235

A new small Stirling engine prototype for auxiliary employments aboard  

SciTech Connect (OSTI)

The development of a small size Stirling engine as low power system for auxiliary employments aboard sailing boats or caravan still appears interesting. In previous papers the author presented the design, the prototype construction and the experimental tests of a monocylinder P-type configuration with the regenerator and part of the heat exchangers set on the displacer; the heat was irradiated by the head and it was removed by the water circulating through the rod of the displacer and around the cylinder. Considerable reductions in dead volume and global dimensions were obtained. At the same time, however, the weight of the heat exchanger regenerator displacer, mainly due to the cooler, kept the speed of revolution from increasing, with consequent limitation of specific power value; furthermore thermal insulation between hot and cold ends and displacer rod seals proved to be critical features as far as reliability is concerned. A new prototype has been developed adopting {gamma}-type configuration with stationary heat exchangers and with the displacer connecting rod linked to the crankshaft by means of an epicyclic train able to make its movement linear thus eliminating rod seal side loadings. The paper deals with the criteria followed with the design and the prototype construction; the adopted technical solutions are shown and discussed.

Bartolini, C.M.; Caresana, F. [Univ. di Ancona (Italy). Dipt. di Energetica

1995-12-31T23:59:59.000Z

236

Studies on flow resistance of regenerator in Stirling engine  

SciTech Connect (OSTI)

Studies on flow resistance of regenerator in Stirling engine are to be reported. The purpose of this study is to measure the flow resistance of regenerator in oscillating flow condition, compare with the results of previous studies and examine whether the friction factor changes between accelerating period and decelerating period of the oscillation cycle. New experimental apparatus for measurement of flow resistance of regenerator element was designed and built. Using semiconductor pressure transducer, instantaneous pressure drops during many oscillation cycle were measured. As regenerator elements, layer of usual mesh and packed mesh were used. It was clear that friction factor of usual mesh, obtained from maximum values of pressure drops in oscillation cycle, lay between two previous studies, while friction factor of packed mesh became higher than the previous studies. Also it became obvious that friction factor did not change between accelerating period and decelerating period of oscillation cycle under revolution speed of 100 rpm, while over 200 rpm, friction factor in decelerating period became higher than in accelerating period at same lower Reynolds number.

Sakano, Akira; Isshiki, Seita; Ushiyama, Izumi [Ashikaga Inst. of Technology, Ashikaga, Tochigi (Japan). Dept. of Mechanical Engineering

1995-12-31T23:59:59.000Z

237

Heat transfer analysis in Stirling engine heat input system  

SciTech Connect (OSTI)

One of the major factor in commercialization of Stirling engine is mass productivity, and the heat input system including tubular heater is one of the obstacles to mass production because of its complexity in shape and difficulty in manufacturing, which resulted from using oxidation-resistant, low-creep alloys which are not easy to machine and weld. Therefore a heater heat exchanger which is very simple in shape and easy to make has been devised, and a burner system appropriate to this heater also has been developed. In this paper specially devised heat input system which includes a heater shell shaped like U-cup and a flame tube located in the heater shell is analyzed in point of heat transfer processes to find optimum heat transfer. To enhance the heat transfer from the flame tube to the heater shell wall, it is required that the flame tube diameter be enlarged as close to the heater shell diameter as possible, and the flame tube temperature be raised as high as possible. But the enlargement of the flame tube diameter should be restricted by the state of combustion affected by hydraulic resistance of combustion gas, and the boost of the flame tube temperature should be considered carefully in the aspects of the flame tube`s service life.

Chung, W.; Kim, S. [LG Electronics Inc., Seoul (Korea, Republic of). Living System Lab.

1995-12-31T23:59:59.000Z

238

Experimental studies on atmospheric Stirling engine NAS-2  

SciTech Connect (OSTI)

Atmospheric hot air Stirling engine NAS-1 and 2 have a simple flat rubber sheet diaphragm as their power piston, and they have been experimentally studied at Nihon University for several years continuously, with the target of to get more than 100 watts shaft power by atmospheric air with simple construction and cheap material. The first NAS-1 was intended to be a solar heated engine using television glass and wood for cheap cost, but it failed by thermal break of glass, so the improved NAS-2 is changed to be heated by gas burner, using metallic materials in all parts except rubber power piston. Other than this rubber sheet diaphragm, NAS-2 has many features as using James Watt crank mechanism, high finny copper tube for conventional commercial heat exchanger, and two kinds of hot gas heaters, etc. About the rubber sheet for the power piston, the thickness of the sheet was changed from 2 mm to 6 mm gradually to known what thickness is best, and it is found that about 5 mm is best for this engine. After trying many improvements on this engine, NAS-2 has produced about 130 watt shaft power with indicated power of 350 watt at 1994. In this paper detail of many features, history, results and experiments of these NAS engines are reported.

Watanabe, Hiroichi [Nihon Univ., Koriyama (Japan). Dept. of Mechanical Engineering; Isshiki, Naotsugu [Nihon Univ., Tokyo (Japan); Ohtomo, Michihiro [Tohoku Electric Power Co., Inc., Sendai (Japan)

1996-12-31T23:59:59.000Z

239

Recycling of wasted energy : thermal to electrical energy conversion  

E-Print Network [OSTI]

various types of Stirling engine have been developed, whichThermogalvanic cell Stirling Engine ORC Internal Combustion

Lim, Hyuck

2011-01-01T23:59:59.000Z

240

Base technology Stirling engine military applications assessment. Final technical report, 1 June 30-September 1983  

SciTech Connect (OSTI)

The design of an advanced Stirling engine is considered for potential use in Air Force mobile electric power generator sets. The prospects for acceptable reliability appears good due to new approaches to recognized Stirling problem areas; sealing, heater head and control. The present design appears suitable for a 30kW set, but Air Force needs would be best suited by development of a 60kW unit. Standardization would be facilitated by using the 60kW Stirling engine and associated auxiliaries in a 30kW set. Final design drawings have been completed in the 30kW engine but construction and tests are required to establish that both design criteria for the engine and mobile power requirements are met. Originator-supplied keywords include: Heat pipe, and Combustor control.

Daley, J.G.

1983-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "rsl energy stirling" 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

Test results of a Stirling engine utilizing heat exchanger modules with an integral heat pipe  

SciTech Connect (OSTI)

The Heat Pipe Stirling Engine (HP-1000), a free-piston Stirling engine incorporating three heat exchanger modules, each having a sodium filled heat pipe, has been tested at the NASA-Lewis Research Center as part of the Civil Space Technology Initiative (CSTI). The heat exchanger modules were designed to reduce the number of potential flow leak paths in the heat exchanger assembly and incorporate a heat pipe as the link between the heat source and the engine. An existing RE-1000 free-piston Stirling engine was modified to operate using the heat exchanger modules. This paper describes heat exchanger module and engine performance during baseline testing. Condenser temperature profiles, brake power, and efficiency are presented and discussed.

Skupinski, R.C.; Tower, L.K.; Madi, F.J.; Brusk, K.D.

1993-04-01T23:59:59.000Z

242

Simulation, experimental validation and kinematic optimization of a Stirling engine using air and helium  

Science Journals Connector (OSTI)

Abstract A Stirling engine with nominal output power of 1kW is tested using air and helium as working gases. The influence of working pressure, engine speed and temperature of the hot source is studied, analyzing instantaneous gas pressure as well as instantaneous and stationary temperature at different positions to derive the effective power. A zero dimensional finite-time thermodynamic, three zones model of a generic Stirling engine is developed and successfully validated against experimental gas temperature and pressure in each zone, providing the effective power. This validation underlines the interest of different working gases as well as different geometric configurations for different applications. Furthermore, the validated model allows parametric studies of the engine, with regard to geometry, working gas and engine kinematics. It is used in order to optimize the kinematic of a Stirling engine for different working points and gases.

Juliette Bert; Daniela Chrenko; Tonino Sophy; Luis Le Moyne; Frdric Sirot

2014-01-01T23:59:59.000Z

243

A feasibility assessment of magnetic bearings for free-piston Stirling space power converters  

SciTech Connect (OSTI)

This report describes work performed by Mechanical Technology Incorporated (MTI) under NASA Contract NAS3-26061, {open_quotes}A Feasibility Assessment of Magnetic Bearings for Free-Piston Stirling Space Engines.{close_quotes} The work was performed over the period from July 1990 through August 1991. The objective of the effort was to assess the feasibility and efficacy of applying magnetic bearings to free-piston Stirling-cycle power conversion machinery of the type currently being evaluated for possible use in future long-term space missions.

Curwen, P.W.; Rao, D.K.; Wilson, D.S. [Mechanical Technology Inc., Latham, NY (United States)

1992-06-01T23:59:59.000Z

244

Drive mechanism for stirling engine displacer and piston and other reciprocating bodies  

SciTech Connect (OSTI)

A drive mechanism is disclosed for drivingly connecting two reciprocating bodies to a rotating body and is particularly useful for linking a single pin crank of a crank-type stirling engine to its displacer and power piston. The drive means has at least two slotted yokes, each connected to a different one of the reciprocating bodies such as the pistons of the stirling engine. The pin of the crank extends through the slots of both slotted yokes. The slots are transverse to each other and preferably are linear.

Senft, J.R.

1982-07-20T23:59:59.000Z

245

A two-dimensional model for the heat transfer on the external circuit of a Stirling engine for a dish/Stirling system  

SciTech Connect (OSTI)

In this paper the {kappa}-{var{underscore}epsilon} turbulent model for the incompressible fluid flow has been used to describe the heat transfer and gas dynamical processes on the external circuit of a Stirling Engine as used on a Solar Dish/Stirling System. The problem considered, in this work for a cavity-type heat receiver of the Stirling Engine, is that of the heat transfer in the body of the shell of the heat exchangers of the engine due to the thermal conductivity, the convective heat transfer between the working fluid and the walls of the engine internal gas circuit and the heat transfer due to the forced convection of the air in the cavity and in the attached air domain. The boundary conditions employed on the engines internal circuit were obtained using the developed one-dimensional second level mathematical model of the engine working cycle. Physical models for the distribution of the solar insolation on the bottom and side walls of the heat receiver have been taken into account and the temperature fields for the heat receiver and the air velocity have been obtained for the case when the heat receiver is affected by wind. The numerical results show that it is in the region of the boundary of the input window of the heat receiver where there is the largest reduction in the temperature in the shell of the heat exchangers and this is due to the convection of the air.

Makhkamov, K.K.; Ingham, D.B.

1998-07-01T23:59:59.000Z

246

Design study of a kinematic Stirling engine for dispered solar electric power systems. Final report, 1979 - 1980  

SciTech Connect (OSTI)

The concept evaluation shows that the four cylinder double acting U type Stirling engine with annular regenerators is the most suitable engine type for the 15 kW solar application with respect to design, performance and cost. Results show that near term performance for a metallic Stirling engine is 42% efficiency. Further improved components show an impact on efficiency of the future metallic engine to 45%. Increase of heater temperature, through the introduction of ceramic components, contribute the greatest amount to achieve high efficiency goals. Future ceramic Stirling engines for solar applications show an efficiency of around 50%.

Not Available

1980-01-01T23:59:59.000Z

247

Stirling engines. (Latest citations from the EI Compendex*plus database). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations concerning Stirling engine technology. Design, development, performance testing, and applications are discussed, including power generation, cryogenic cooling, solar power applications, and ground and marine vehicles. The citations also examine engine component design and material testing results. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

NONE

1996-05-01T23:59:59.000Z

248

Stirling engines. (Latest citations from the EI Compendex*plus database). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations concerning Stirling engine technology. Design, development, performance testing, and applications are discussed, including power generation, cryogenic cooling, solar power applications, and ground and marine vehicles. The citations also examine engine component design and material testing results. (Contains 250 citations and includes a subject term index and title list.)

NONE

1995-02-01T23:59:59.000Z

249

Stirling engines. (Latest citations from the EI Compendex*plus database). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations concerning Stirling engine technology. Design, development, performance testing, and applications are discussed, including power generation, cryogenic cooling, solar power applications, and ground and marine vehicles. The citations also examine engine component design and material testing results. (Contains 250 citations and includes a subject term index and title list.)

Not Available

1994-04-01T23:59:59.000Z

250

Start-up and control method and apparatus for resonant free piston Stirling engine  

SciTech Connect (OSTI)

A resonant free-piston Stirling engine having a new and improved start-up and control method and system. A displacer linear electrodynamic machine is provided having an armature secured to and movable with the displacer and having a stator supported by the Stirling engine housing in juxtaposition to the armature. A control excitation circuit is provided for electrically exciting the displacer linear electrodynamic machine with electrical excitation signals having substantially the same frequency as the desired frequency of operation of the Stirling engine. The excitation control circuit is designed so that it selectively and controllably causes the displacer electrodynamic machine to function either as a generator load to extract power from the displacer or the control circuit selectively can be operated to cause the displacer electrodynamic machine to operate as an electric drive motor to apply additional input power to the displacer in addition to the thermodynamic power feedback to the displacer whereby the displacer linear electrodynamic machine also is used in the electric drive motor mode as a means for initially starting the resonant free-piston Stirling engine.

Walsh, Michael M. (Schenectady, NY)

1984-01-01T23:59:59.000Z

251

Stirling Engine Natural Gas Combustion Demonstration Program. Final report, October 1989-January 1991  

SciTech Connect (OSTI)

Fueled on natural gas, the Stirling engine is an inherently clean, quiet, and efficient engine. With increasing environmental concern for air quality and the increasingly more stringent requirements for low engine exhaust emissions, the Stirling engine may be an attractive alternative to internal combustion (IC) engines. The study has demonstrated that ultra low emissions can be attained with a Stirling-engine-driven electric generator configured to burn natural gas. Combustion parameters were optimized to produce the lowest possible exhaust emissions for a flame-type combustor without compromising overall engine thermal efficiency. A market application survey and manufacturing cost analysis indicate that a market opportunity potentially exists in the volumes needed to economically manufacture a newly designed Stirling engine (Mod III) for stationary applications and hybrid vehicles. The translation of such potential markets into actual markets does, however, pose difficult challenges as substantial investments are required. Also, the general acceptance of a new engine type by purchasers requires a considerable amount of time.

Ernst, W.; Moryl, J.; Riecke, G.

1991-02-01T23:59:59.000Z

252

Reflux heat-pipe solar receiver for a Stirling dish-electric system  

SciTech Connect (OSTI)

The feasibility of competitive, modular bulk electric power from the sun is enhanced by the use of a reflux heat-pipe receiver to combine a Stirling engine with a paraboloidal dish concentrator. This combination represents a potential improvement over previous successful demonstrations of Stirling dish-electric technology in terms of enhanced performance, lower cost, and longer life. In the reflux (i.e. gravity assisted) heat-pipe receiver, concentrated solar radiation causes liquid sodium to evaporate, the vapor flows to the Stirling engine heaters where it condenses on the heater tubes. The condensate is returned to and distributed over the receiver by gravity (refluxing) and by capillary forces in a wick lining the receiver. It is essentially an adaptation of sodium heat pipe technology to the peculiar requirements of concentrated solar flux and provides many potential advantages over conventional tube receiver technology. This paper describes the preliminary design of a reflux heat-pipe solar receiver to match the STM4-120 variable swashplate Stirling engine to a Test Bed Concentrator at Sandia National Laboratories Distributed Receiver Test Facility. Performance analysis and other design considerations are presented and discussed.

Ziph, B.; Godett, T.M.; Diver, R.B.

1987-01-01T23:59:59.000Z

253

Automotive Stirling Engine development program: Semiannual technical progress report, January 1--June 30, 1987  

SciTech Connect (OSTI)

During this reporting period, progress was made toward the performance characterization of the Mod II engine, and by the end of the period, the engine hours had increased by 203 hours to a total of 223. Performance evaluation of the Mod II Basic Stirling Engine (BSE) began.

Not Available

1988-02-01T23:59:59.000Z

254

Reliability study of Stirling engines for solar dish/heat engine systems  

SciTech Connect (OSTI)

The objective of this study was to examine the reliability of existing and improved Stirling engine concepts for dispersed solar dish-electric applications in the 25-50 kWe range. Five current kinematic Stirling engine designs have the capability to meet or exceed the 32% efficiency goal of the DOE Solar Thermal Program. A review of historical Stirling engine data illustrated that the three major reliability issues with kinematic Stirling engines are the piston-rod seals, engine hot parts (i.e., heater head, regenerator and cylinders) and power control/drive system. The most significant reliability issue associated with achieving the 50,000 hour operating life goal involves piston-rod seals. A specific kinematic engine concept that appears to have the potential for meeting the 50,000 hour operating lifetime requirement of solar power systems is the STM4-120 engine. This engine has a pressurized crankcase to reduce piston-rod seal problems, an indirect heat pipe hot-end section to smooth out temperature gradients in the heater tubes, and a variable angle swashplate for power control.

Holtz, R.E.; Uherka, K.L.

1987-05-01T23:59:59.000Z

255

Start-up and control method and apparatus for resonant free piston Stirling engine  

SciTech Connect (OSTI)

A resonant free-piston Stirling engine having a new and improved start-up and control method and system. A displacer linear electrodynamic machine is provided having an armature secured to and movable with the displacer and having a stator supported by the Stirling engine housing in juxtaposition to the armature. A control excitation circuit is provided for electrically exciting the displacer linear electrodynamic machine with electrical excitation signals having substantially the same frequency as the desired frequency of operation of the Stirling engine. The excitation control circuit is designed so that it selectively and controllably causes the displacer electrodynamic machine to function either as a generator load to extract power from the displacer or the control circuit selectively can be operated to cause the displacer electrodynamic machine to operate as an electric drive motor to apply additional input power to the displacer in addition to the thermodynamic power feedback to the displacer whereby the displacer linear electrodynamic machine also is used in the electric drive motor mode as a means for initially starting the resonant free-piston Stirling engine. 3 figs.

Walsh, M.M.

1984-03-06T23:59:59.000Z

256

SYSTEM PERFORMANCE OF A STIRLING ENGINE POWERED HEAT ACTIVATED HEAT PUMP  

E-Print Network [OSTI]

AUG 1979 SYSTEM PERFORMANCE OF A STIRLING ENGINE POWERED HEAT ACTIVATED HEAT PUMP W. D. Richards W The development of the first prototype heat activated heat pump (HAHP) jointly sponsored by the Gas Research as a unitary heating and cooling product competing for the same market as is currently served by the gas year

Oak Ridge National Laboratory

257

Condensate and final-state effects in superfluid 4 R. T. Azuah* and W. G. Stirling  

E-Print Network [OSTI]

Condensate and final-state effects in superfluid 4 He R. T. Azuah* and W. G. Stirling Department neutron-scattering facility, Rutherford-Appleton Laboratory. From the measurements we obtain a condensate reanalyze the data assuming that the superfluid has no condensate, i.e., n0 0, then the data requires

Glyde, Henry R.

258

Project Profile: Maintenance-Free Stirling Engine for High-Performance Dish CSP  

Broader source: Energy.gov [DOE]

Infinia, under the CSP R&D FOA, is developing a 30 kW CSP system that utilizes a multi-cylinder, free-piston Stirling engine to achieve the goal LCOE of $0.07$0.10/kWh by 2015 and $0.05$0.07/kWh by 2020.

259

Efficiency and Emissions Study of a Residential Microcogeneration System Based on a Stirling Engine and Fuelled by Diesel and Ethanol.  

E-Print Network [OSTI]

??This study examined the performance of a residential microcogeneration system based on a Stirling engine and fuelled by diesel and ethanol. An extensive number of (more)

Farra, Nicolas

2010-01-01T23:59:59.000Z

260

Oscillating flow loss test results in Stirling engine heat exchangers. Final Report  

SciTech Connect (OSTI)

The results are presented for a test program designed to generate a database of oscillating flow loss information that is applicable to Stirling engine heat exchangers. The tests were performed on heater/cooler tubes of various lengths and entrance/exit configurations, on stacked and sintered screen regenerators of various wire diameters and on Brunswick and Metex random fiber regenerators. The test results were performed over a range of oscillating flow parameters consistent with Stirling engine heat exchanger experience. The tests were performed on the Sunpower oscillating flow loss rig which is based on a variable stroke and variable frequency linear drive motor. In general, the results are presented by comparing the measured oscillating flow losses to the calculated flow losses. The calculated losses are based on the cycle integration of steady flow friction factors and entrance/exit loss coefficients.

Koester, G.; Howell, S.; Wood, G.; Miller, E.; Gedeon, D.

1990-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "rsl energy stirling" 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

Coupled thermodynamic-dynamic semi-analytical model of Free Piston Stirling engines  

E-Print Network [OSTI]

The study of free piston Stirling engine (FPSE) requires both accurate thermodynamic and dynamic modelling to predict its performances. The steady state behaviour of the engine partly relies on non linear dissipative phenomena such as pressure drop loss within heat exchangers which is dependant on the temperature within the associated components. An analytical thermodynamic model which encompasses the effectiveness and the flaws of the heat exchangers and the regenerator has been previously developed and validated. A semi-analytical dynamic model of FPSE is developed and presented in this paper. The thermodynamic model is used to define the thermal variables that are used in the dynamic model which evaluates the kinematic results. Thus, a coupled iterative strategy has been used to perform a global simulation. The global modelling approach has been validated using the experimental data available from the NASA RE-1000 Stirling engine prototype. The resulting coupled thermodynamic-dynamic model using a standard...

Formosa, Fabien

2013-01-01T23:59:59.000Z

262

Advanced Small Free?Piston Stirling Convertors for Space Power Applications  

Science Journals Connector (OSTI)

This paper reports on the current status of an advanced 35 We free?piston Stirling convertor currently being developed under NASA SBIR Phase II funding. Also described is a further advanced and higher performance ?80 watt free?piston convertor being developed by Sunpower and Boeing/Rocketdyne for NASA under NRA funding. Exceptional overall convertor (engine plus linear alternator) thermodynamic performance (greater than 50% of Carnot) with specific powers around 100 We /kg appear reasonable at these low power levels.

J. Gary Wood; Neill Lane

2004-01-01T23:59:59.000Z

263

Stirling Isotope Power System Program. Final report, January 1978-December 1980  

SciTech Connect (OSTI)

The Stirling Isotope Power System (SIPS) design is discussed, including the control system and engine starter. The development, of fabrication, and testing of the SIPS converter are presented. The work performed on the Isotope Heat Source Assembly is described. The ancillary equipment, system integration and qualification, and safety are discussed. The safety discussion consists primarily of prediction of dose rates around the IHS and the influence on handling equipment design. Reliability and quality assurance are included. (MHR)

Not Available

1980-12-01T23:59:59.000Z

264

Control scheme for power modulation of a free piston Stirling engine  

SciTech Connect (OSTI)

The present invention relates to a control scheme for power modulation of a free-piston Stirling engine-linear alternator power generator system. The present invention includes connecting an autotransformer in series with a tuning capacitance between a linear alternator and a utility grid to maintain a constant displacement to piston stroke ratio and their relative phase angle over a wide range of operating conditions.

Dhar, Manmohan (Schenectady, NY)

1989-01-01T23:59:59.000Z

265

Free-piston Stirling engine development. Annual report, December 1, 1984-December 31, 1985  

SciTech Connect (OSTI)

The free-piston Stirling engine (FPSE) is being developed as a potential gas-fired prime mover for heat-pump applications in the residential market. The heat pump features an advanced FPSE coupled to a Rankine refrigerant compressor through a hermetically sealed diaphragm-activated hydraulic transmission. During the past year, the program has concentrated on developing the engine and compressor component improvement in performance and realiability. The report presents the progress made.

Ackermann, R.A.

1986-04-01T23:59:59.000Z

266

Automotive Stirling Engine Development Program. Quarterly technical progress report for period June 29-October 3, 1980  

SciTech Connect (OSTI)

Current information on component and subsystems development activities and engine and vehicle testing during July to October 1980 in the Automotive Stirling Engine Development Program is reported. Computer code development progress is also covered. The status of the manufacture of the Mod I is given in some detail. Program engine operating hours through the end of this quarterly period reach a total of 6181 h.

Not Available

1980-12-01T23:59:59.000Z

267

Automotive Stirling Engine Development Program. Technical progress report, March 30-June 28, 1980  

SciTech Connect (OSTI)

The DOE/NASA Automotive Stirling Engine Development program has been underway for approximately 27 months. This is the ninth quarterly report to be issued, and it covers the period of March 30-June 28, 1980. The previous quarterly report presented information on the Reference Engine design and the design of the ASE Mod I (Automotive Stirling Engine Model No. I) as presented to NASA in January 1980. The report also reviewed component and subsystem development activities, the testing of the baseline P-40 engines, the progress being made on computer code developments, and its presented data on the screening of potential seals materials. This quarterly report presents updated information on the Reference Engine and the ASE Mod I as presented to NASA at the Design Review Meeting held in May. NASA has approved the updated Reference Engine and ASE Mod I designs, and manufacturing/procurement has started. The ASE Mod I is the program's first Stirling engine designed specifically for automotive use; it is a steppingstone to the program's final prototype engine, the ASE Mod II. Current information is presented on component and subsystems development activities and engine and vehicle testing. Computer code development progress is also covered. Program engine operating hours through the end of this quarterly period (through June 28, 1980) reached a total of 5095 h.

Not Available

1980-08-01T23:59:59.000Z

268

Gedeon streaming suppression in a small scale thermoacoustic-Stirling engine-generator  

Science Journals Connector (OSTI)

Thermoacoustic-Stirling engines or traveling wave engines have been shown to convert heat to acoustic power very efficiently (over 30% first-law) in the laboratory. The laboratory prototypes are generally heated from the inside by an embedded electric heater have a long bulky resonator and deliver their work to an acoustic load rather than as electricity leaving significant challenges required for commercialization unaddressed. The authors are part of a team developing a compact acoustic Stirling engine that is externally heated and is coupled to a pair of linear alternators dubbed the Thermoacoustic-Stirling Engine-Generator (TaSEG). An important part of this work has been developing a commercially viable means of suppressing Gedeon streaming a steady flow that circulates in an acoustic engine's toroidal geometry. In the laboratory this streaming is typically suppressed by either a latex barrier or a jet pump '' a special flow element with asymmetric flow resistance adjusted from the outside of the engine via a rod that passes through the pressure vessel. This work describes the design and testing of a simple compact and inexpensive element with multiple jet-pump orifices (the jet plate'') which can replace the laboratory versions in a commercial engine.

2014-01-01T23:59:59.000Z

269

Experimental and vector analysis on gamma type Stirling engine with hot power cylinder  

SciTech Connect (OSTI)

In 1993, the superiority of hot end connected power cylinder gamma type Stirling engine (HEC) compared to the conventional cold end connected power cylinder engine (CEC) was reported by Prof. J.Kentfield of the University of Calgary. It is a great thing that he introduced the HEC engine, and it reminded the authors that in 1980, they built and experimented with a three cylinder 3kW Stirling engine SRI-1, in which two cylinders are positively heated by gas, that is called HCH (Hot, Cold and Hot) engine as shown in a figure, and having similarity to the above HEC. The authors have developed a quite simple and understandable approximate harmonic vector analysis method for Stirling machines. By this, Kentfield`s HEC engine and their HCH engine are expressed by the same figure as shown in the paper. The similarity and superiority of HEC and HCH compared to CEC and CHC are easily shown by the vector analysis method with physical reason.

Isshiki, Naotsugu [Nihon Univ., Tokyo (Japan); Tsukahara, Shigeji [Ship Research Inst., Mitaka, Tokyo (Japan); Ohtomo, Michihiro [Tohoku Electric Power Co., Sendai (Japan)

1995-12-31T23:59:59.000Z

270

The Stirling engine as a low cost tool to educate mechanical engineers  

SciTech Connect (OSTI)

The University of Zaragoza through CIRCE, the New Enterprise foundation, an Opel foundation and the local Government of Aragon have been developed a program to introduce the Stirling Engine as a low cost tool to educate students in mechanical engineering. The promotion of a prize like GNAT Power organized by the magazine Model Engineer in London, has improved the practical education of students in the field of mechanical devices and thermal engines. Two editions of the contest, 1993 and 1994, awarded the greatest power Stirling engine made by only using a little candle of paraffin as a heat source. Four engines were presented in the first edition, with an average power of about 100 mW, and seven engines in the second one, achieving a power of about 230 mW. Presentations in Technical Schools and the University have been carried out. Also low cost tools have been made for measuring an electronic device to draw the real internal pressure volume diagram using a PC. A very didactic software to design classic kinematic alpha, beta and gamma engines plus Ringbom beta and gamma engines has been created. A book is going to be published (in Spanish) explaining the design of small Stirling engines as a way to start with low cost research in thermal engines, a very difficult target with IC engines.

Gros, J.; Munoz, M.; Moreno, F.; Valero, A. [Univ. of Zaragoza (Spain). Center for Research of Powerplant Efficiency

1995-12-31T23:59:59.000Z

271

Initial results of sensitivity tests performed on the RE-1000 free-piston stirling engine  

SciTech Connect (OSTI)

A 1 kW (1.33hp) single cylinder free-piston Stirling engine has been tested in the test facilities at the Lewis laboratory. Tests have been performed over the past several years on an engine designed to investigate the dynamics of a free-piston Stirling engine for the purpose of computer code validation. A description of the engine and its instrumentation is given in a prior NASA report TM-82999. Some initial test results are given in NASA Report TM-83407. Tests to investigate the sensitivity of the engine performance to variations in working space pressure, heater and cooler temperatures, regenerator porosity, power piston mass and displacer dynamics have been initiated at Lewis. Maps of engine performance have been recorded with the use of an 81.2% porosity regenerator; both a high efficiency displacer and a high power displacer were tested; efficiencies up to 33% were recorded and power output of approximately 1500 watts was recorded. This report presents preliminary results from the Lewis sensitivity tests being performed on the RE-1000 free-piston Stirling engine. Descriptions of future tests are also given.

Schreiber, J.G.

1984-08-01T23:59:59.000Z

272

Theoretical model for predicting thermodynamic behavior of thermal-lag Stirling engine  

Science Journals Connector (OSTI)

A theoretical model for predicting thermodynamic behavior of thermal-lag Stirling engine is presented in this study. Without a displacer and its link, the thermal-lag engine contains only a moving part (piston) and a static part (regenerative heater) in engine's cylinder and hence, is regarded as a unique type of Stirling engines that featuring rather simple mechanical structure. In this study, a numerical simulation of thermodynamic behavior of the thermal-lag Stirling engine is performed based on the theoretical model developed. Transient variations of temperatures, pressures, pressure difference, and working fluid masses in the individual working spaces of the engine are predicted. Dependence of indicated power and thermal efficiency on engine speed has been investigated. Then, optimal engine speeds at which the engine may reach its maximum power output and/or maximum thermal efficiency is determined. Furthermore, effects of geometrical and operating parameters, such as heating and cooling temperatures, volumes of the chambers, thermal resistances, stroke of piston, and bore size on indicated power output and thermal efficiency are also evaluated.

Chin-Hsiang Cheng; Hang-Suin Yang

2013-01-01T23:59:59.000Z

273

CX-004924: Categorical Exclusion Determination | Department of Energy  

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

4: Categorical Exclusion Determination 4: Categorical Exclusion Determination CX-004924: Categorical Exclusion Determination lnfinia - Stirling Air Conditioner (StAC) for Compact Cooling CX(s) Applied: B3.6 Date: 08/05/2010 Location(s): Kennewick, Washington Office(s): Advanced Research Projects Agency - Energy Funding will support laboratory-scale research and development on a Stirling Air Conditioner that combines a Stirling Cycle with innovative heat transfer coupling to produce improvements in compact cooling. The proposed work is consistent with the goal of Building Energy Efficiency Through Innovative Thermodevices: the development of energy efficient cooling technologies and air conditioners for buildings, to save energy and reduce greenhouse gas emissions. Proposed work consists entirely of

274

U.S. Department of Energy Categorical Exclusion Determination Form  

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

PI-OW~M Advanced Research Projects Agency - PI-OW~M Advanced Research Projects Agency - Energy 0 1 -Field Ofice: Proiect T i t l e : (0289-1632) lnfinia - Stirling Air Conditioner (StAC) for Compact Cooling Location: Washington Proposed Action or Project Description: American Reconr)- and R e i o ~ ~ t m s n t Act: Fundingwill support laboratoryscale research and development on a Stirling Air Conditioner that combines a Stirling Cycle with innovative heat transfer coupling to produce improvements in campad cooling. The proposed work is consistent with the goal of BEETIT: the development of energy efficient cooling technologies and air conditioners for buildings, to save energy and reduce GHG emissions. Proposed work consists entirely of RD&Dwork to be completed at lnfinia's commercially-zoned headquarters facility in Kennewick, WA. The work

275

Conceptual design and cost analysis of hydraulic output unit for 15 kW free-piston Stirling engine. Final Report  

SciTech Connect (OSTI)

A long-life hydraulic converter with unique features was conceptually designed to interface with a specified 15 kW(e) free-piston Stirling engine in a solar thermal dish application. Hydraulic fluid at 34.5 MPa (5000 psi) is produced to drive a conventional hydraulic motor and rotary alternator. Efficiency of the low-maintenance converter design was calculated at 93.5% for a counterbalanced version and 97.0% without the counterbalance feature. If the converter were coupled to a Stirling engine with design parameters more typical of high-technology Stirling engines, counterbalanced converter efficiency could be increased to 99.6%. Dynamic computer simulation studies were conducted to evaluate performance and system sensitivities. Production costs of the complete Stirling hydraulic/electric power system were evaluated at $6506 which compared with $8746 for an alternative Stirling engine/linear alternator system.

White, M.A.

1982-08-01T23:59:59.000Z

276

Dish/Stirling High-Performance Thermal Storage  

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

A., "Heat transfer and exergy analysis of cascaded latent heat storage with gravity-assisted heat pipes for concentrating solar power applications," Solar Energy 86 (3)...

277

An experimental determination of the dynamics of a free displacer of a small Ringbom-Stirling engine  

SciTech Connect (OSTI)

Otherwise known as a hybrid Stirling engine, the Ringbom-Stirling engine is denoted by its use of a kinematically constrained piston and a free displacer. Pioneering work by Senft in development of a working theory of the Ringbom Stirling engine and the introduction of the fundamental parameters of particular interest has resulted in the possibility of predicting the motion of the free displacer. Using a small Ringbom engine constructed at the University of Calgary and a high speed cine camera it has been possible to record the motion of the displacer relative to the piston motion and to demonstrate the verity of the predictions of the theory. This paper describes the model engine experiment and compares the measurements with the theory as implemented in a second-order computer analysis program.

Fauvel, O.R.; Moehrle, A.; Srincvasan, V.; Walker, G.

1983-08-01T23:59:59.000Z

278

Heat-pipe gas-combustion system endurance test for Stirling engine. Final report, May 1990-September 1990  

SciTech Connect (OSTI)

Stirling Thermal Motors, Inc., (STM) has been developing a general purpose Heat Pipe Gas Combustion System (HPGC) suitable for use with the STM4-120 Stirling engine. The HPGC consists of a parallel plate recuperative preheater, a finned heat pipe evaporator and a film cooled gas combustor. A principal component of the HPGC is the heat pipe evaporator which collects and distributes the liquid sodium over the heat transfer surfaces. The liquid sodium evaporates and flows to the condensers where it delivers its latent heat. The report presents test results of endurance tests run on a Gas-Fired Stirling Engine (GFSE). Tests on a dynamometer test stand yielded 67 hours of engine operation at power levels over 10 kW (13.5 hp) with 26 hours at power levels above 15 kW (20 hp). Total testing of the engine, including both motoring tests and engine operation, yielded 245 hours of engine run time.

Mahrle, P.

1990-12-01T23:59:59.000Z

279

Second order analyses methods for stirling engine design.  

E-Print Network [OSTI]

??ENGLISH ABSTRACT:In the midst of the current non-renewable energy crises specifically with regard to fossil fuel, various research institutions across the world have turned their (more)

Snyman, H.

2007-01-01T23:59:59.000Z

280

Data acquisition user's guide-1 for fuel/engine evaluation system applied to an experimental air stirling engine. Technical note  

SciTech Connect (OSTI)

This technical note describes the Data Acquisition (DA) System used in the evaluation of Experimental Air Stirling Engine No. 1 which had previously been designed and built as a part of the Advanced Engines studies for the Fuels/Powerplants Technical Subprogram 25B. The DA system and capability is presented. Brief programming guidelines for controlling various peripheral electronic equipment through a mini-computer are given. The program software used in testing the Stirling engine is described. Finally, some limitations of the DA system are listed.

Bingham, I.R.; Webster, G.D.

1981-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "rsl energy stirling" 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

Apparatus for preventing the rise of oil in a Stirling engine  

SciTech Connect (OSTI)

An apparatus for preventing lubricating oil from rising to the working spaces of a Stirling engine, the Stirling engine having a rod which reciprocates inside a cylindrical member is described comprising: a first oil-absorbing member which has an annular shape and which is secured to the rod so as to reciprocate therewith, the outer periphery of the first oil-absorbing member being in sliding contact with the inner surface of the cylindrical member; an oil scattering-preventing plate which has an annular shape and which is mounted on the rod above the first oil-absorbing member in intimate contact with the first oil-absorbing member, the outer diameter of the scattering-preventing plate being smaller than the inner diameter of the cylindrical member; a second oil-absorbing member which has an annular shape, which is permeable to air, and which is secured along its outer periphery to the inner surface of the cylindrical member above and separated from the oil scattering-preventing plate, the inner periphery of the second oil-absorbing member being in sliding contact with the outer surface of the rod; means for making the flow speed of gas which through the second oil-absorbing member during the operation of the Stirling engine higher from above to below the second oil-absorbing member than from below to above the second oil-absorbing member; and an annular baffle which is secured to the rod above and separated from the second oil-absorbing member, the outer diameter of the annular baffle being smaller than the inner diameter of the cylindrical member.

Kawajiri, K.; Fujiwara, M.; Tsuchino, K.; Hisamori, Y.

1987-12-08T23:59:59.000Z

282

A free-piston Stirling engine/linear alternator controls and load interaction test facility  

SciTech Connect (OSTI)

A test facility at LeRC was assembled for evaluating free-piston Stirling engine/linear alternator control options, and interaction with various electrical loads. This facility is based on a 'SPIKE' engine/alternator. The engine/alternator, a multi-purpose load system, a digital computer based load and facility control, and a data acquisition system with both steady-periodic and transient capability are described. Preliminary steady-periodic results are included for several operating modes of a digital AC parasitic load control. Preliminary results on the transient response to switching a resistive AC user load are discussed.

Rauch, J.S.; Kankam, M.D.; Santiago, W.; Madi, F.J.

1992-08-01T23:59:59.000Z

283

Wave propagation method for Stirling engine cycle simulation: An experimental validation  

SciTech Connect (OSTI)

A thermo-fluid-dynamic model for Stirling Engine Cycle simulation, first proposed by Rispoli in 1986, has been modified to keep into account the effect of gas axial turbulent conductivity and the results of recent research in oscillating flow friction and turbulent transition phenomena. Sudden cross sectional area changes are handled as flow discontinuities described by a set of equations solved by means of the secant method. Model prediction accuracy has been tested comparing numerical results with experimental data for the cogenerative unit V160. The comparison between numerical and experimental data shows model`s capability to take into account physical phenomena involved in working fluid evolution.

Calandrelli, L.; Rispoli, F. [Univ. of Rome La Sapienza (Italy)

1995-12-31T23:59:59.000Z

284

Australian coal mine methane emissions mitigation potential using a Stirling engine-based CHP system  

Science Journals Connector (OSTI)

Abstract Methane, a major contributor to global warming, is a greenhouse gas emitted from coal mines. Abundance of coal mines and consequently a considerable amount of methane emission requires drastic measures to mitigate harmful effects of coal mining on the environment. One of the commonly adopted methods is to use emitted methane to fuel power generation systems; however, instability of fuel sources hinders the development of systems using conventional prime movers. To address this, application of Stirling engines may be considered. Here, we develop a techno-economic methodology for conducting an optimisation-based feasibility study on the application of Stirling engines as the prime movers of coal mine CHP systems from an economic and an environmental point of view. To examine the impact of environmental policies on the economics of the system, the two commonly implemented ones (i.e. a carbon tax and emissions trading scheme) are considered. The methodology was applied to a local coal mine. The results indicate that incorporating the modelled system not only leads to a substantial reduction in greenhouse gas emissions, but also to improved economics. Further, due to the heavy economic burden, the carbon tax scheme creates great incentive for coal mine industry to address the methane emissions.

Mehdi Aghaei Meybodi; Masud Behnia

2013-01-01T23:59:59.000Z

285

Nonlinear dynamics analysis of a membrane Stirling engine: Starting and stable operation  

E-Print Network [OSTI]

This paper presents the work devoted to the study of the operation of a miniaturized membrane Stirling engine. Indeed, such an engine relies on the dynamic coupling of the motion of two membranes to achieve a prime mover Stirling thermodynamic cycle. The modelling of the system introduces the large vibration amplitudes of the membrane as well as the nonlinear dissipative effects associated to the fluid flow within the engine. The nonlinearities are expressed as polynomial functions with quadratic and cubic terms. This paper displays the stability analysis to predict the starting of the engine and the instability problem which leads to the steady state behaviour. The centre manifold - normal form theory is used to obtain the simplest expression for the limit cycle amplitudes. The approach allows the reduction of the number of equations of the original system in order to obtain a simplified system, without loosing the dynamics of the original system as well as the contributions of non-linear terms. The model in...

Formosa, Fabien

2013-01-01T23:59:59.000Z

286

RE-1000 free-piston Stirling engine sensitivity test results. Final report  

SciTech Connect (OSTI)

The NASA Lewis Research Center has been testing a 1 kW (1.33 hp) free-piston Stirling engine at the NASA Lewis test facilities. The tests performed over the past several years have been on a single cylinder machine known as the RE-1000. The data recorded were to aid in the investigation of the dynamics and thermodynamics of the free-piston Stirling engine. The data are intended to be used primarily for computer code validation. NASA reports TM-82999, TM-83407, and TM-87126 give initial results of the engine tests. The tests were designed to investigate the sensitivity of the engine performance to variations on the mean pressure of the working space, the working fluid used, heater and cooler temperatures, regenerator porosity, power piston mass and displacer dynamics. These tests have now been completed at NASA Lewis. This report presents some of the detailed data collected in the sensitivity tests. In all, 781 data points were recorded. A complete description of the engine and test facility is given. Many of the data can be found in tabular form, while a microfiche containing all of the data points can be requested from NASA Lewis.

Schreiber, J.G.; Geng, S.M.; Lorenz, G.V.

1986-10-01T23:59:59.000Z

287

Experimental and theoretical analysis of the performance of Stirling engine with pendulum type displacer  

SciTech Connect (OSTI)

This paper describes the detailed experimental and theoretical performance of new type Stirling engine with pendulum type displacer (PDSE) which was proposed last year. This kind of engine has a pendulum type displacer suspended by the hinge shaft, and swings right and left in displacer space. The present paper mainly discusses the PDSE-3B which is an atmospheric 30[W] engine heated by fuel and cooled by water. It is clear that power required to provide a pendulum type displacer motion is expressed as a simple equation consisting of viscous flow loss term proportional to the square of rotational speed and dynamic pressure loss term proportional to the cube of rotational speed. It is also clear that theoretical engine power defined as the difference between experimental indicated power and power required to provide pendulum type displacer motion agrees well with the experimental engine power. It is also clear that measured Nusselt number of regenerator`s wire meshes agreed with the equation of previous study. In conclusion, PDSE is considered effective for measuring many aspects of performance of the Stirling engine.

Isshiki, Seita; Isshiki, Naotsugu [Isshiki R and D Lab., Tokyo (Japan); Takanose, Eiichiro; Igawa, Yoshiharu [Shiroki Corp., Toyokawashi (Japan)

1995-12-31T23:59:59.000Z

288

Dynamically balanced, hydraulically driven compressor/pump apparatus for resonant free piston Stirling engines  

DOE Patents [OSTI]

A compressor, pump, or alternator apparatus is designed for use with a resonant free piston Stirling engine so as to isolate apparatus fluid from the periodically pressurized working fluid of the Stirling engine. The apparatus housing has a first side closed by a power coupling flexible diaphragm (the engine working member) and a second side closed by a flexible diaphragm gas spring. A reciprocally movable piston is disposed in a transverse cylinder in the housing and moves substantially at right angles relative to the flexible diaphragms. An incompressible fluid fills the housing which is divided into two separate chambers by suitable ports. One chamber provides fluid coupling between the power diaphragm of the RFPSE and the piston and the second chamber provides fluid coupling between the gas spring diaphragm and the opposite side of the piston. The working members of a gas compressor, pump, or alternator are driven by the piston. Sealing and wearing parts of the apparatus are mounted at the external ends of the transverse cylinder in a double acting arrangement for accessibility. An annular counterweight is mounted externally of the reciprocally movable piston and is driven by incompressible fluid coupling in a direction opposite to the piston so as to damp out transverse vibrations.

Corey, John A. (North Troy, NY)

1984-05-29T23:59:59.000Z

289

Externally excited resonant free piston stirling engine thermal amplifier system and method of operation and control therefor  

SciTech Connect (OSTI)

This patent describes an externally excited resonant free piston stirling engine thermal amplifier and load system driven thereby which is over damped at all operating load levels and does not freely oscillate. This system and its method of operation consists of: 1.) A variably controlled drive motor coupled with the displacer/piston of the engine; 2.) A controllable power supply coupled to the drive motor to provide variably controlled energizing electric signals to the drive motor; 3.) A device for sensing at least one selected operating parameter of the stirling engine thermal amplifier and load system during operation to drive a load; and 4.) A feedback system which includes a response to the sensed stirling engine thermal amplifier system operating parameter signal for deriving at least one feedback control signal operative to control the energizing electric signals supplied to the drive motor for controlling its operation. These signals then precisely, variably and stably controll the operation of the stirling engine thermal amplifier and load system.

Vitale, N.G.; Dhar, M.

1986-02-11T23:59:59.000Z

290

Independently variable phase and stroke control for a double acting Stirling engine  

SciTech Connect (OSTI)

A phase and stroke control apparatus for the pistons of a Stirling engine includes a ring on the end of each piston rod in which a pair of eccentrics is arranged in series, torque transmitting relationship. The outer eccentric is rotatably mounted in the ring and is rotated by the orbiting ring; the inner eccentric is mounted on an output shaft. The two eccentrics are mounted for rotation together within the ring during normal operation. A device is provided for rotating one eccentric with respect to another to change the effective eccentricity of the pair of eccentrics. A separately controlled phase adjustment is provided to null the phase change introduced by the change in the orientation of the outer eccentric, and also to enable the phase of the pistons to be changed independently of the stroke change.

Berchowitz, David M. (Scotia, NY)

1983-01-01T23:59:59.000Z

291

Enhanced air/fuel mixing for automotive Stirling engine turbulator-type combustors  

SciTech Connect (OSTI)

This patent describes a combustor for use in a Stirling engine and the like. It comprises: a combustor chamber; a fuel inlet couple to the chamber to inject fuel therein; a turbulator means disposed in the chambers downstream of the fuel inlet means for injecting combustion air into the chamber, the turbulator means being so positioned to cause a mixing of the combustion air and fuel injected in the chamber; diverter means for dividing the combustion air and creating a primary mixing zone downstream fa the primary mixing zone; and wherein the primary mixing zone comprises a fuel rich zone where combustion initiates and the secondary mixing zone has sufficient combustion air to complete combustion of the fuel.

Riecke, G.T.; Stotts, R.E.

1992-02-25T23:59:59.000Z

292

SPRE I Free-Piston Stirling Engine Testing at NASA Lewis Research Center  

SciTech Connect (OSTI)

As part of the NASA funded portion of the SP-100 Advanced Technology Program the Space Power Research Engine (SPRE I) was designed and built to serve as a research tool for evaluation and development of advanced Stirling engine concepts. The SPRE I is designed to produce 12.5 kW electrical power when operated with helium at 15 MPa and with an absolute temperature ratio of two. The engine is now under test in a new test facility which was designed and built at NASA LeRC specifically to test the SPRE I. This paper describes the SPRE I, the NASA test facility, the initial SPRE I test results, and future SPRE I test plans.

Cairelli, J.E.

1994-09-01T23:59:59.000Z

293

The performance of a high?frequency thermoacoustic?Stirling engine  

Science Journals Connector (OSTI)

A thermoacoustic?Stirling engine that operates at 400 Hz with a working fluid of 1?MPa helium is constructed. For proper acoustic phasing in this engines regenerator an acoustic power feedback path exists in the form of an annulus surrounding the regenerator. This feedback path is obtained by suspending an insulated stainless steel sleeve containing a wire mesh regenerator which is flanked by two heat exchangers a short distance from one end of the larger diameter resonator. The ambient heat exchanger is a shell and tube exchanger while the hot heater consists of nichrome ribbon wound on an aluminum silicate frame. Gedeon streaming is prevented by a diaphragm covering the end of the stainless steel sleeve adjacent to the ambient heat exchanger. A variable acoustic load provides a convenient means of testing this engine at various hot heater temperatures while operating at different acoustic pressure amplitudes effects the acoustic power generated by the engine. [Work supported by ONR.

2003-01-01T23:59:59.000Z

294

Design of a 1 kW class gamma type Stirling engine  

SciTech Connect (OSTI)

The study for a design on a kinematic drive gamma type Stirling engine is reported. This unit enters in the 1kW class and it is conceived to move a portable electric generator. The peculiarity of this unit is basically to use components taken from the line production, and also for the parts designed specifically for this application all the efforts are directed to simplicity in terms of material and manufacture. At first the engine performance targets are defined in compatibility with the components taken from a large scale production compressor and then the new components like the heat exchangers and the crank mechanism are designed. Two pre-tests are effected: one to define the performances of the induction motor in the electric regenerative mode and another running the machine as a refrigerator.

Raggi, L.; Katsuta, Masafumi [Waseda Univ., Tokyo (Japan); Sekiya, Hiroshi [Sanyo Electric Co., Ltd., Gumma (Japan)

1997-12-31T23:59:59.000Z

295

The effect of dimension limits on the performance indices of Stirling engine MAC-02  

SciTech Connect (OSTI)

The paper presents a comparative study of different Stirling engine MAC-02 specifications. The MAC-02 is the engine of beta configuration with heater and cooler tubes drilled inside the cylinder wall and connected by an annular regenerator of wire mesh type, surrounding the cylinder. Piston and displacer are driven by Ericsson linkage, which brings some advantages with respect to other conventional drives, however, for its complexity it has not been considered yet in published Stirling engine optimization codes. The most difficult aspects in designing such an engine configuration is the strong interdependence among constructional parameters particularly drive rod angularity, rod, cylinder, piston and heat exchanger dimensions. For this reason a special method for the optimal engine synthesis was elaborated and presented in Impero Abenavoli, R., et al. (1993). The corresponding computer code SE-OPT was used to obtain results discussed in this paper. A number of the engine design specifications were calculated and compared one to another. Each of the cases under consideration was determined as the optimal solution of non-linear programming problem defined with different engine dimension boundaries. The maximum of indicated power was chosen as the objective function. Although several tens of constraints were included into the optimization problems, only the limits imposed on the total engine length and cylinder diameter are analyzed in this paper. The two parameters were considered as variables dependent on the other ones (free and fixed parameters). The effect of these main engine dimension limits on selected performance indices (indicated power and efficiency) and the optimal values of other ensure parameters such as heat exchanger dimensions, linkage parameters and piston phrase angles were investigated.

Abenavoli, R.I. [Univ. di Roma La Sapienza (Italy); Carlini, M. [Univ. della Tuscia, Viterbo (Italy); Kormanski, H.; Rudzinska, K. [Technical Univ. of Gdansk (Poland)

1995-12-31T23:59:59.000Z

296

Effects of sudden expansion and contraction flow on pressure drops in the Stirling engine regenerator  

SciTech Connect (OSTI)

The flow losses in the regenerators greatly influence the performance of the Stirling engine. The losses mainly depend on fluid friction through the regenerator matrix, but are also generated in sudden expansion and contraction flow at the regenerator ends. The latter losses can't be neglected in the case of small area ratio (entrance area/cross-sectional area in regenerator). The pressure drops in regenerators are usually estimated assuming a uniform velocity distribution of working gas in the matrices. The estimation results, however, are generally smaller than practical data. The cross-sectional flow areas of the heater and cooler of typical Stirling engines are smaller than the cross- sectional area of the regenerator. The effects of the small flow passage on the velocity distribution of working fluid in the matrix, that is, a flow transition from tubes or channels to a regenerator matrix, can be often confirmed by the discolored matrix. Especially, the lack of a uniform distribution of velocity in the matrix causes increased flow loss and decreased thermal performance. So, it is necessary to understand the quantitative effects of the sudden change in flow area at the regenerator ends on the velocity distribution and pressure drop. In this paper, using matrices made of stacks of wire screens, the effects of the entrance and exit areas and the length of the regenerator on pressure drops are examined by an unidirectional steady flow apparatus. The experimental data are arranged in an empirical equation. The lack of a uniformity of velocity distribution is visualized using smoke-wire methods. The empirical equation presented is applied to the estimation of pressure loss in an actual engine regenerator. The applicability of the equation is examined by comparison of estimated value with engine data in pressure loss.

Hamaguchi, K.; Yamashita, I.; Hirata, K.

1998-07-01T23:59:59.000Z

297

Set of rules in order to develop control systems bases of domestic policies using renewable energy  

Science Journals Connector (OSTI)

The purpose of this paper is to establish a set of prime rules which could enable the further development of the control and monitoring installation for domestic systems using microgeneration systems fundamented upon the use of renewable energies, particularly ... Keywords: building automation, mCHP, renewables energies, stirling engine

Ion Voncila; Nicolae Badea; Nelu Cazacu; Ion Paraschiv

2010-05-01T23:59:59.000Z

298

EIS-0426: Final Environmental Impact Statement | Department of Energy  

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

6: Final Environmental Impact Statement 6: Final Environmental Impact Statement EIS-0426: Final Environmental Impact Statement This Site-Wide Environmental Impact Statement for the Continued Operation of the Department of Energy/National Nuclear Security Administration Nevada National Security Site and Off-Site Locations in the State of Nevada (NNSS SWEIS) analyzed the potential environmental impacts of proposed alternatives for continued management and operation of the Nevada National Security Site (NNSS) (formerly known as the Nevada Test Site) and other U.S. Department of Energy/National Nuclear Security Administration (DOE/NNSA)-managed sites in Nevada, including the Remote Sensing Laboratory (RSL) on Nellis Air Force Base in North Las Vegas, the North Las Vegas Facility (NLVF), the Tonopah Test Range (TTR), and environmental

299

Aviation Best Safety First RSL's Aerial Measuring Systems program  

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

Lory Jones. Submit articles or ideas to: onevoice@nv.doe.gov Publication Management: NSTec Public Affairs and Community Relations and Workforce Enhancement & Communications...

300

A novel thermally biased mechanical energy conversion cycle Ian M. McKinley, Sam Goljahi, Christopher S. Lynch, and Laurent Pilona)  

E-Print Network [OSTI]

organic Rankine cycles,3 and thermoelectric devices.4,5 Stirling engines and organic Rankine cyclesA novel thermally biased mechanical energy conversion cycle Ian M. McKinley, Sam Goljahi) This paper demonstrates a new power cycle for direct conversion of mechanical energy into electrical energy

Pilon, Laurent

Note: This page contains sample records for the topic "rsl energy stirling" 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

------~~~T~~"~cr~~s~-~~a-r~~~C-~~:~"'4r:~~~?4F~~n-I~~~U i~)-----`----------------r~~~t' 1O NCOT T MATCHING OF A FREE PISTON STIRLING ENGINE COUPLED WITH A FREE  

E-Print Network [OSTI]

~~~t' 789272 1O NCOT T MATCHING OF A FREE PISTON STIRLING ENGINE COUPLED WITH A FREE REWPOVP PISTON LINEAR simplicity, lack of seals, and elimination of oil lubrication, a Free Piston Stirling Engine coupled, and hermetically sealed load feature, a free piston Stirling engine (Reference 2), driving a free piston linear

Oak Ridge National Laboratory

302

Carnegie Wave Energy Limited | Open Energy Information  

Open Energy Info (EERE)

Carnegie Wave Energy Limited Carnegie Wave Energy Limited Jump to: navigation, search Name Carnegie Wave Energy Limited Address 1 124 Stirling Highway Place North Fremantle Zip 6159 Sector Marine and Hydrokinetic Year founded 1993 Number of employees 25 Website http://www.carnegiewave.com Region Australia LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This company is listed in the Marine and Hydrokinetic Technology Database. This company is involved in the following MHK Projects: CETO La Reunion CETO3 Garden Island Perth Wave Energy Project PWEP This company is involved in the following MHK Technologies: CETO Wave Energy Technology This article is a stub. You can help OpenEI by expanding it. Retrieved from "http://en.openei.org/w/index.php?title=Carnegie_Wave_Energy_Limited&oldid=678263

303

Multi-bottle, no compressor, mean pressure control system for a Stirling engine  

DOE Patents [OSTI]

The invention relates to an apparatus for mean pressure control of a Stirling engine without the need for a compressor. The invention includes a multi-tank system in which there is at least one high pressure level tank and one low pressure level tank wherein gas flows through a maximum pressure and supply line from the engine to the high pressure tank when a first valve is opened until the maximum pressure of the engine drops below that of the high pressure tank opening an inlet regulator to permit gas flow from the engine to the low pressure tank. When gas flows toward the engine it flows through the minimum pressure supply line 2 when a second valve is opened from the low pressure tank until the tank reaches the engine's minimum pressure level at which time the outlet regulator opens permitting gas to be supplied from the high pressure tank to the engine. Check valves between the two tanks prevent any backflow of gas from occurring.

Corey, John A. (Melrose, NY)

1990-01-01T23:59:59.000Z

304

3kW Stirling engine for power and heat production  

SciTech Connect (OSTI)

A new 3 kW Beta type Stirling engine has been developed. The engine uses Natural gas as fuel, and it is designed for use as a small combined heat and power plant for single family houses. The electrical power is supplied to the grid. The engine is made as a hermetic device, where the crank mechanism and the alternator are built into a pressurized crank casing. The engine produce 3 kW of shaft power corresponding to 2.4 kW of electric power. The heat input is 10 kW corresponding to a shaft efficiency of 30%, and an electric efficiency of 24%. Helium at 8 MPa mean pressure is used as working gas. The crank mechanism is a combination of an upper- and lower yoke, each forming the half of a Ross mechanism. The upper yoke is linked to the displacer piston and the lower yoke is linked to the working piston. The design gives an approximately linear couple point curve, which eliminates guiding forces on the pistons and the need for X-heads. Grease lubricated needle and ball bearings are used in the kinematic crank mechanism. The burner includes an air preheater and a water jacket, which makes it possible to utilize nearly all of the heat from the combustion gases. The performance of the engine has been tested as a function of mean pressure and hot and cold temperature, and emissions and noise have been measured.

Thorsen, J.E.; Bovin, J.; Carlsen, H. [Technical Univ. of Denmark, Lyngby (Denmark). Inst. of Energy Engineering

1996-12-31T23:59:59.000Z

305

Free?piston stirling component test power converter test results of the initial test phase  

Science Journals Connector (OSTI)

The National Aeronautics and Space Administration (NASA)Lewis Research Center (LeRC) has the responsibility to develop power technologies that have the potential of satisfying anticipated future space mission power requirements. The Free?Piston Stirling Power Converter (FPSC) is one of the many power technologies being evaluated and developed by NASA. FPSPCs have the potential to provide high reliability long life efficient operation; and they can be coupled with all potential heat sources nuclear radioisotope and solar various heat input heat rejection systems and various power management and distribution systems. FPSPCs can complete favorably with alternative power conversion systems over a range of hundreds of watts to hundreds of kilowatts and to megawatts. Mechanical Technology Incorporated (MTI) is developed FPSPC technology under contract to NASA?LeRC and will demonstrate this technology in two full?scale power converters. The first of these the Component Test Power Converter (CTPC) initiated testing in Spring 1991 to evaluate mechanical operation at space operating temperatures. This paper reviews the testing of the CTPC at MTI and the companion testing of the earlier technology engine the Space Power Research Engine (SPRE) at NASA?LeRC.

George R. Dochat; James E. Dudenhoefer

1992-01-01T23:59:59.000Z

306

Project Profile: Innovative Application of Maintenance-Free Phase-Change Thermal Energy Storage for Dish Systems  

Broader source: Energy.gov [DOE]

Infinia, under the Thermal Storage FOA, is developing a thermal energy storage (TES) system that, when combined with Infinia's dish-Stirling system, can achieve DOE's CSP cost goals of $0.07/kWh by 2015 for intermediate power and 5/kWh by 2020 for baseload power.

307

Next Generation Radioisotope Generators | Department of Energy  

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

» Next Generation Radioisotope Generators » Next Generation Radioisotope Generators Next Generation Radioisotope Generators Advanced Stirling Radioisotope Generator (ASRG) - The ASRG is currently being developed as a high-efficiency RPS technology to support future space missions on the Martian surface or in the vacuum of space. This system uses Stirling convertors, which have moving parts to mechanically convert heat to electricity. This power conversion system, if successfully deployed, will reduce the weight of each RPS and the amount of Pu-238 needed per mission. A HISTORY OF MISSION SUCCESSES For over fifty years, the Department of Energy has enabled space exploration on 27 missions by providing safe reliable radioistope power systems and radioisotope heater units for NASA, Navy and Air Force.

308

Thermodynamic and thermoeconomic analysis of a system with biomass gasification, solid oxide fuel cell (SOFC) and Stirling engine  

Science Journals Connector (OSTI)

Abstract Thermodynamic and thermoeconomic investigations of a small-scale integrated gasification solid oxide fuel cell (SOFC) and Stirling engine for combined heat and power (CHP) with a net electric capacity of 120kWe have been performed. Woodchips are used as gasification feedstock to produce syngas, which is then utilized to feed the anode side of the SOFC stacks. A thermal efficiency of 0.424 LHV (lower heating value) for the plant is found to use 89.4kg/h of feedstock to produce the above mentioned electricity. Thermoeconomic analysis shows that the production price of electricity is 0.1204$/kWh. Furthermore, hot water is considered as a by-product, and the cost of hot water is found to be 0.0214$/kWh. When compared to other renewable systems of similar scales, this result shows that if both SOFC and Stirling engine technology enter the commercialization phase, then they can deliver electricity at a cost that is competitive with the corresponding renewable systems of the same size.

Masoud Rokni

2014-01-01T23:59:59.000Z

309

Efficiency and Emissions Study of a Residential Micro-cogeneration System based on a Modified Stirling Engine and Fuelled by a Wood Derived Fas Pyrolysis Liquid-ethanol Blend.  

E-Print Network [OSTI]

??A residential micro-cogeneration system based on a Stirling engine unit was modified to operate with wood derived fast pyrolysis liquid (bio-oil)-ethanol blend. A pilot stabilized (more)

Khan, Umer

2012-01-01T23:59:59.000Z

310

Combined Heat and Power for Saving Energy and Carbon in Residential Buildings  

E-Print Network [OSTI]

gas engines and stirling engines are currently being testedapplications as the other technologies. 4) Stirling Engines.The Stirling Engineso named because it is based on the

2000-01-01T23:59:59.000Z

311

An engineer-oriented optimisation of Stirling engine cycle with finite-size finite-speed of revolution thermodynamics  

Science Journals Connector (OSTI)

Finite-time thermodynamics takes into account exo-irreversibilities which are not managed by reversible thermodynamics, especially reservoir-to-gas temperature gaps. In today's works, thermodynamicists use the working gas mass as the main imposed parameter. In this paper, the study of the Stirling engine cycle is carried out with a motorist-oriented viewpoint: instead of the working gas mass, the reference parameters are those linked to engineering constraints; they are the maximum pressure, the maximum volume, the extreme temperatures and the overall thermal conductance; the adjustable parameters are the volumetric compression ratio, the hot-to-cold conductance ratio and the regenerator efficiency. Analytical normalised expressions of the operating characteristics of the engine, such as power, work, efficiency, speed and their optima are set up. Classical results of analytical optimisation are found back and new ones are established, leading to new conclusions. Some dimensionless and dimensional numbers are put into evidence.

Lavinia Grosu; Pierre Rochelle; Nadia Martaj

2012-01-01T23:59:59.000Z

312

Study on the radiation flux and temperature distributions of the concentratorreceiver system in a solar dish/Stirling power facility  

Science Journals Connector (OSTI)

Uniform heater temperature and high opticalthermal efficiency are crucial for the reliable and economical operation of a Solar Dish/Stirling engine facility. The Monte-Carlo ray-tracing method is utilized to predict the radiation flux distributions of the concentratorreceiver system. The ray-tracing method is first validated by experiment, then the radiation flux profiles on the solar receiver surface for faceted real concentrator and ideal paraboloidal concentrator, irradiated by Xe-arc lamps and real sun, for different aperture positions and receiver shapes are analyzed, respectively. The resulted radiation flux profiles are subsequently transferred to a CFD code as boundary conditions to numerically simulate the fluid flow and conjugate heat transfer in the receiver cavity by coupling the radiation, natural convection and heat conduction together, and the CFD method is also validated through experiment. The results indicate that a faceted concentrator in combination with a solar simulator composed of 12 Xe-arc lamps is advantageous to drive the solar Stirling engine for all-weather indoor tests. Based on the simulation results, a solar receiver-Stirling heater configuration is designed to achieve a considerably uniform temperature distribution on the heater head tubes while maintaining a high efficiency of 60.7%.

Zhigang Li; Dawei Tang; Jinglong Du; Tie Li

2011-01-01T23:59:59.000Z

313

Two-dimensional model of the air flow and temperature distribution in a cavity-type heat receiver of a solar stirling engine  

SciTech Connect (OSTI)

A theoretical study on the air flow and temperature in the heat receiver, affected by free convection, of a Stirling Engine for a Dish/Stirling Engine Power System is presented. The standard {kappa}-{epsilon} turbulence model for the fluid flow has been used and the boundary conditions employed were obtained using a second level mathematical model of the Stirling Engine working cycle. Physical models for the distribution of the solar insolation from the Concentrator on the bottom and side walls of the cavity-type heat receiver have been taken into account. The numerical results show that most of the heat losses in the receiver are due to re-radiation from the cavity and conduction through the walls of the cavity. It is in the region of the boundary of the input window of the heat receiver where there is a sensible reduction in the temperature in the shell of the heat exchangers and this is due to the free convection of the air. Further, the numerical results show that convective heat losses increase with decreasing tilt angle.

Makhkamov, K.K.; Ingham, D.B.

1999-11-01T23:59:59.000Z

314

Relationship Among Efficiency and Output Power of Heat Energy Converters  

E-Print Network [OSTI]

Relationship among efficiency and output power of heat-electric energy converters as well as of any converters for transforming of heat energy into any other kind of energy is considered. It is shown, that the parameter efficiency does not determine univocally the output power of a converter. It is proposed to use another parameter for determination of working ability of heat energy converters. It is shown, that high output power can not be achieved by any kind of Stirling-type converters in spite of their high efficiency.

Alexander Luchinskiy

2004-09-02T23:59:59.000Z

315

Data:152de4d9-b6c4-4ac7-90bb-7997ca191e57 | Open Energy Information  

Open Energy Info (EERE)

d9-b6c4-4ac7-90bb-7997ca191e57 d9-b6c4-4ac7-90bb-7997ca191e57 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Delaware Electric Cooperative Effective date: 2011/02/01 End date if known: Rate name: Lighting Service--Schedule L-1 HP Sodium Vapor Lamp-Post Top Luminaire (100w) RSL 12" Sector: Lighting Description: Available to Members, governments, agencies, public and private organizations desiring Electric Delivery or Electric Supply and Delivery Services through unmetered services for roadway and area lighting. Source or reference: http://www.delaware.coop/my-services/residential/billing/rates

316

Data:A48bff6d-efe4-4086-a37c-df737516de87 | Open Energy Information  

Open Energy Info (EERE)

bff6d-efe4-4086-a37c-df737516de87 bff6d-efe4-4086-a37c-df737516de87 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Delaware Electric Cooperative Effective date: 2011/02/01 End date if known: Rate name: Lighting Service--Schedule L-1 HP Sodium Vapor Lamp-Post Top Luminaire (100w) RSL 10" Sector: Lighting Description: Available to Members, governments, agencies, public and private organizations desiring Electric Delivery or Electric Supply and Delivery Services through unmetered services for roadway and area lighting. Source or reference: http://www.delaware.coop/my-services/residential/billing/rates

317

Page not found | Department of Energy  

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

21 - 3030 of 28,905 results. 21 - 3030 of 28,905 results. Download FY 2014 Budget Request State Table http://energy.gov/downloads/fy-2014-budget-request-state-table Article November 16, 2012 SEAB Meeting The Secretary of Energy Advisory Board met at the U.S. Department of Energy in Washington, DC. http://energy.gov/seab/articles/november-16-2012-seab-meeting Photo Gallery Women in Clean Energy Symposium http://energy.gov/photos/women-clean-energy-symposium Page Next Generation Radioisotope Generators Advanced Stirling Radioisotope Generator (ASRG) - The ASRG is currently being developed as a high-efficiency RPS technology to support future space missions on the Martian surface or in the vacuum... http://energy.gov/ne/nuclear-reactor-technologies/space-power-systems/next-generation-radioisotope-generators

318

E-Print Network 3.0 - automotive stirling engine Sample Search...  

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

& CCHP Applications 1,400,000 0 600,000 Did... ,433 Awardee 4 Makel Engineering Inc. Biogas Fuelled HCCI Generation for Combined ... Source: California Energy Commission...

319

E-Print Network 3.0 - advanced stirling convertor Sample Search...  

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

Generation 10 credits Advanced AC Drives with Project 20 credits Optional modules Renewable Energy Technology... of a DC-DC voltage convertor with maximum power...

320

Modeling, simulation, and analysis of grid connected dish-stirling solar power plants.  

E-Print Network [OSTI]

??The percentage of renewable energy within the global electric power generation portfolio is expected to increase rapidly over the next few decades due to increasing (more)

Howard, Dustin F.

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rsl energy stirling" 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

Energy  

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

Energy newsroomassetsimagesenergy-icon.png Energy Research into alternative forms of energy, and improving and securing the power grid, is a major national security...

322

Environmental test report on the CTI-Cryogenics 1-watt integral Stirling cooler (long-life HD-1033d). Final report, 16 June-24 July 1988  

SciTech Connect (OSTI)

This final report describes and provides the data on the environmental testing of the CTI-Cryogenics 1-Watt Integral Stirling Cooler (Long-Life HD-1033D). The 1-Watt Integral Cooler (HD-1033B/C) is currently used in the M1 FLIR, M60 FLIR, and the Advanced Attack Helicopter FLIR. The long life cooler (clearance seal) improves life of the cooler by approximately two and one half times. C2NVEO evaluated the cooler performance at environmental extremes per the purchase description, PD-0182-001(CR). The cooler successfully passed all the environmental tests with no failures.

Doggett, G.; Dunmire, H.; Samuels, R.; Shaffer, J.

1989-04-01T23:59:59.000Z

323

Multiphysics modeling of a micro-scale Stirling refrigeration system Dongzhi Guo a  

E-Print Network [OSTI]

of thermoelectric energy conversion is determined by the thermo- electric material's figure of merit, ZT, which Engineering, Carnegie Mellon University, Pittsburgh, PA 15213-3890, USA b Department of Electrical-scale coolers have a wide range of potential applica- tions, such as cooling chip- and board-level electronics

McGaughey, Alan

324

Energy  

Science Journals Connector (OSTI)

Energy ... Scientific Challenges in Sustainable Energy Technology, by Nathan S. Lewis of the California Institute of Technology, summarizes data on energy resources and analyses the implications for human society. ... ConfChem Conference on Educating the Next Generation: Green and Sustainable ChemistrySolar Energy: A Chemistry Course on Sustainability for General Science Education and Quantitative Reasoning ...

John W. Moore

2008-07-01T23:59:59.000Z

325

Page not found | Department of Energy  

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

01 - 4910 of 29,416 results. 01 - 4910 of 29,416 results. Download CX-004924: Categorical Exclusion Determination lnfinia - Stirling Air Conditioner (StAC) for Compact Cooling CX(s) Applied: B3.6 Date: 08/05/2010 Location(s): Kennewick, Washington Office(s): Advanced Research Projects Agency - Energy http://energy.gov/nepa/downloads/cx-004924-categorical-exclusion-determination Download CX-004952: Categorical Exclusion Determination General Atomics -Soluble Lead Flow Battery Technology CX(s) Applied: B3.6 Date: 08/05/2010 Location(s): San Diego, California Office(s): Advanced Research Projects Agency - Energy http://energy.gov/nepa/downloads/cx-004952-categorical-exclusion-determination Download CX-004923: Categorical Exclusion Determination Battelle-Cascade Reverse Osmosis and the Reverse Absorption Osmosis Cycle

326

Experimental and Analytical Studies on Pyroelectric Waste Heat Energy Conversion  

E-Print Network [OSTI]

ect of working ?uids on organic Rankine cycle for waste heatof such devices. Organic Rankine cycles and Stirling engines

Lee, Felix

2012-01-01T23:59:59.000Z

327

The Cascade of Tidal Energy from Low to High Modes on a Continental Slope SAMUEL M. KELLY* AND JONATHAN D. NASH  

E-Print Network [OSTI]

The Cascade of Tidal Energy from Low to High Modes on a Continental Slope SAMUEL M. KELLY. Kelly, University of Western Australia, M015 SESE, 35 Stirling Hwy., Crawley, WA 6009, Australia. E-mail: samuel.kelly@uwa.edu.au JULY 2012 K E L L Y E T A L . 1217 DOI: 10.1175/JPO-D-11-0231.1 ? 2012 American

328

Public Interest Energy Research (PIER) Program FINAL PROJECT REPORT  

E-Print Network [OSTI]

VALIDATION OF A 25 KILOWATT DUAL SHELL STIRLING ENGINE APRIL 2009 CEC5002009061 Prepared for: California · Transportation Proof of Concept and Test Validation of a 25 kW Dualshell Stirling Engine final report for the 25kW Dualshell Stirling Engine Project (Contract Number 50004017) conducted by ADI Thermal Power

329

Energy  

Gasoline and Diesel Fuel Update (EIA)

Federal, State, local, and foreign governments, EIA survey respondents, and the media. For further information, and for answers to questions on energy statistics, please...

330

Energy  

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

Energy Energy Energy Express Licensing Accelerator-Driven Transmutation Of Spent Fuel Elements Express Licensing Acid-catalyzed dehydrogenation of amine-boranes Express Licensing Air Breathing Direct Methanol Fuel Cell Express Licensing Aligned Crystalline Semiconducting Film On A Glass Substrate And Method Of Making Express Licensing Anion-Conducting Polymer, Composition, And Membrane Express Licensing Apparatus for Producing Voltage and Current Pulses Express Licensing Biaxially oriented film on flexible polymeric substrate Express Licensing Corrosion Test Cell For Bipolar Plates Express Licensing Device for hydrogen separation and method Negotiable Licensing Durable Fuel Cell Membrane Electrode Assembly (MEA) Express Licensing Energy Efficient Synthesis Of Boranes Express Licensing

331

Experimental Determination of the Efficiency and Emissions of a Residential Microcogeneration System Based on a Stirling Engine and Fueled by Diesel and Ethanol  

Science Journals Connector (OSTI)

Some of the diesel fuel properties were obtained from fuel certification tests conducted by the Alberta Research Council and established by the American Society for Testing and Materials, and the remainder are reported general properties. ... Clucas, D. M.Development of a Stirling engine battery charger based on a low cost wobble mechanism, Ph.D. Thesis, Department of Mechanical Engineering, University of Canterbury, Christchurch, New Zealand, 1993. ... investigation is conducted to evaluate the effects of using blends of ethanol with conventional diesel fuel, with 5% and 10% (by vol.) ethanol, on the performance and exhaust emissions of a fully instrumented, six-cylinder, turbocharged and after-cooled, heavy duty, direct injection (DI), Mercedes-Benz engine, installed at the authors' lab., which is used to power the mini-bus diesel engines of the Athens Urban Transport Organization sub-fleet with a view to using bio-ethanol produced from Greek feedstock. ...

Nicolas Farra; Tommy Tzanetakis; Murray J. Thomson

2012-01-27T23:59:59.000Z

332

Page not found | Department of Energy  

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

61 - 10770 of 28,560 results. 61 - 10770 of 28,560 results. Page Next Generation Radioisotope Generators Advanced Stirling Radioisotope Generator (ASRG) - The ASRG is currently being developed as a high-efficiency RPS technology to support future space missions on the Martian surface or in the vacuum... http://energy.gov/ne/nuclear-reactor-technologies/space-power-systems/next-generation-radioisotope-generators Article Top 11 Things You Didn't Know About Nikola Tesla Learn facts about Nikola Tesla, one of history's most important energy-related inventors and engineers. http://energy.gov/articles/top-11-things-you-didnt-know-about-nikola-tesla Article Top 8 Things You Didn't Know About Thomas Alva Edison Some surprising facts about one of the most prolific inventors in U.S. history -- Thomas Edison.

333

CALIBRATION AND VALIDATION ACTIVITIES IN THE SCOPE OF HYPER-I-NET: THE RSL APPROACH  

E-Print Network [OSTI]

including optics and electronics, aerospace engineering, remote sensing, geosciences, computer sciences be generated using advanced scientific algorithms leading to products such as atmospherically corrected surface way. An example leading in this direction is described in [7]. #12;Recently, the Hyperspectral Imaging

Plaza, Antonio J.

334

Water and Energy Interactions  

E-Print Network [OSTI]

that generate electricity using steam engines, gas turbines,and power Rankine steam cycles. Dish/engine systems are air-Stirling engines (78). Once used in the turbines, the steam

McMahon, James E.

2013-01-01T23:59:59.000Z

335

The tribology of PS212 coatings and PM212 composites for the lubrication of titanium 6A1-4V components of a Stirling engine space power system  

SciTech Connect (OSTI)

The Stirling space power machine incorporates a linear alternator to generate electrical power. The alternator is a reciprocating device that is driven by a solar or nuclear-powered Stirling engine. The power piston and cylinder are made of titanium 6A1-4V (Ti6-4) alloy, and are designed to be lubricated by a hydrodynamically-generated gas film. Rubbing occurs during starts and stops and there is a possibility of an occasional high speed rub. Since titanium is known to have a severe galling tendency in sliding contacts, a `backup,` self-lubricating coating on the cylinder and/or the piston is needed. This report describes the results of a research program to study the lubrication of Ti6-4 with the following chromium carbide based materials: plasma-sprayed PS212 coatings and sintered PM212 counterfaces. Program objectives are to achieve adherent coatings on Ti6-4 and to measure the friction and wear characteristics of the following sliding combinations under conditions simulative of the Stirling-driven space power linear alternator: Ti6-4/Ti6-4 baseline, Ti6-4/PS212 coated Ti6-4, and Ps212 coated Ti6-4/PM212

Sliney, H.E.; Dellacorte, C.; Lukaszewicz, V. [Lewis Research Center, Cleveland, OH (United States)]|[Calspan Corp., Cleveland, OH (United States)

1995-07-01T23:59:59.000Z

336

Energy  

Office of Legacy Management (LM)

..) ".. ..) ".. _,; ,' . ' , ,; Depar?.me.nt ,of.' Energy Washington; DC 20585 : . ' , - $$ o"\ ' ~' ,' DEC ?;$ ;y4,,, ~ ' .~ The Honorable John Kalwitz , 200 E. Wells Street Milwaukee, W~isconsin 53202, . . i :. Dear,Mayor 'Kalwitz: " . " Secretary of Energy Hazel' O'Leary has announceha new,approach 'to,openness in " the Department of Ene~rgy (DOE) and its communications with'the public. In -. support of~this initiative, we areipleased to forward the enclosed information related to the Milwaukee Ai.rport site in your jurisdiction that performed work, for DOE orits predecessor agencies. information; use, and retention. ., This information .is provided for your '/ ,' DOE's Formerly Utilized Sites Remedial:'Action~'Prog&is responsible for ,"'

337

Scotia Wind Ltd | Open Energy Information  

Open Energy Info (EERE)

Scotia Wind Ltd Scotia Wind Ltd Jump to: navigation, search Name Scotia Wind Ltd Place Stirling, Scotland, United Kingdom Zip FK9 7AJ Sector Wind energy Product Scotia Wind is an independent developer and operator of small to medium scale wind energy projects in the United Kingdom. Coordinates 40.67068°, -74.494569° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.67068,"lon":-74.494569,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

338

STM Power Inc | Open Energy Information  

Open Energy Info (EERE)

Develops, designs, assembles and sells ultra low emissions, external combustion, combined heat and power generators using Stirling-cycle engines. References: STM Power Inc1 This...

339

Implementation of a Stirling engine generation system for residential use in rural areas of Beni department of Bolivia.  

E-Print Network [OSTI]

?? This thesis summarizes a degree project in Sustainable Energy Engineering, carried out by two students at the Royal Institute of Technology, Stockholm, in the (more)

Ljunggren Falk, Hugo

2014-01-01T23:59:59.000Z

340

Data:45c2ebbb-c8a1-4b70-9d2a-37a60108c104 | Open Energy Information  

Open Energy Info (EERE)

ebbb-c8a1-4b70-9d2a-37a60108c104 ebbb-c8a1-4b70-9d2a-37a60108c104 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Public Service Elec & Gas Co Effective date: 2010/06/07 End date if known: Rate name: 150 HOLOPHANE RSL TYPE V Sector: Commercial Description: Source or reference: http://www.pseg.com/family/pseandg/tariffs/electric/pdf/electric_tariff.pdf Source Parent: Comments Applicability Demand (kW) Minimum (kW): Maximum (kW): History (months): Energy (kWh) Minimum (kWh): Maximum (kWh): History (months): Service Voltage Minimum (V): Maximum (V): Character of Service Voltage Category: Phase Wiring:

Note: This page contains sample records for the topic "rsl energy stirling" 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

Data:Da49a4f7-b301-48a0-b0fc-c609e508c65a | Open Energy Information  

Open Energy Info (EERE)

f7-b301-48a0-b0fc-c609e508c65a f7-b301-48a0-b0fc-c609e508c65a No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Clay Electric Cooperative, Inc Effective date: 2011/01/01 End date if known: Rate name: Rate Schedule - RSL(A) Sector: Lighting Description: 6 or more consumers per light with a lamp size of 7000 lumens Source or reference: https://www.clayelectric.com/rates.aspx Source Parent: Comments 6 kWh/month estimate. $1.20 fixed monthly is per customer. Plus current month's Power Cost Adjustment and applicable taxes. Applicability Demand (kW) Minimum (kW): Maximum (kW): History (months): Energy (kWh)

342

Data:2494105c-a5c0-4dd6-908b-76a0e296643b | Open Energy Information  

Open Energy Info (EERE)

c-a5c0-4dd6-908b-76a0e296643b c-a5c0-4dd6-908b-76a0e296643b No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Clay Electric Cooperative, Inc Effective date: 2011/01/01 End date if known: Rate name: Rate Schedule - RSL(B) Sector: Lighting Description: Not less than (3) nor more than (5) customers per light. 7000 Lumens (lamp size). Source or reference: https://www.clayelectric.com/rates.aspx Source Parent: Comments 11 kWh/month estimate. $2.30 fixed monthly is per customer. Plus current month's Power Cost Adjustment and applicable taxes. Applicability Demand (kW) Minimum (kW): Maximum (kW):

343

RP-5 Renewable Energy Efficiency Project  

SciTech Connect (OSTI)

This is the sixth quarterly technical report for the RP-5 Renewable Energy Efficiency Project. The report summarizes the work progress, effort and activities that took place during the period from October 1, 2003 through December 31, 2003. The report has been prepared in accordance with the Department of Energy (DOE) Guidelines. In coordination with the DOE, IEUA has revised the original Cooperative Agreement to reflect the actual and current project scope of work. The original Agreement statement of work (SOW) included conceptual and preliminary equipment and systems, which were further evaluated for feasibility and suitability for the project. As a result, some of the equipment was taken out of the project scope. In response to questions from the DOE, IEUA has submitted a summary report on the Organic Rankine Cycle (ORC) secondary power generation units for availability and suitability for this project and associated safety concerns pointed out by the DOE. IEUA has awarded the consulting engineering contract to Parsons Water and Infrastructure, Inc. to provide the project's design and construction services. The project's pre-design kickoff meeting was held at IEUA's headquarters on December 11, 2003. IEUA has submitted a proposal for a grant offered by California Energy Commission (CEC) which if awarded to IEUA, will add value to this project. IEUA has finalized and signed the agreement with Stirling Energy Systems (SES) to host a 25 kW Stirling Engine at the RP-5 plant site for reliability and performance testing using digester and natural gas. As a result of further evaluation of the flexible microturbine system, IEUA has decided to take it out of the project's scope of work; however, it may be considered in future projects at other locations. IEUA has installed a 60 kW Photovoltaic (PV) power generation system on the roof of the new headquarters building. A matching funds update is also included in the Results and Discussion section. The update presents the work effort performed by CH2M Hill, the PIER Consultant, and the associated costs that serve as matching funds for the RP-5 Renewable Energy Efficiency Project during this report period.

Neil Clifton; Eliza Jane Whitman; Jamal A. Zughbi

2004-01-29T23:59:59.000Z

344

SES Solar Three Project Solar Power Plant | Open Energy Information  

Open Energy Info (EERE)

Three Project Solar Power Plant Three Project Solar Power Plant Jump to: navigation, search Name SES Solar Three Project Solar Power Plant Facility SES Solar Three Project Sector Solar Facility Type Photovoltaics Facility Status Proposed Developer Stirling Energy Systems, Tessera Solar Location San Bernardino County, California Coordinates 34.9592083°, -116.419389° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":34.9592083,"lon":-116.419389,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

345

SES Solar Two Project Solar Power Plant | Open Energy Information  

Open Energy Info (EERE)

Project Solar Power Plant Project Solar Power Plant Jump to: navigation, search Name SES Solar Two Project Solar Power Plant Facility SES Solar Two Project Sector Solar Facility Type Concentrating Solar Power Developer Stirling Energy Systems, Tessera Solar Location Imperial Valley, California Coordinates 33.03743°, -115.621591° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":33.03743,"lon":-115.621591,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

346

Solar stirling engine rig tests  

Science Journals Connector (OSTI)

A description of a prototype four-cylinder Stirli ng engine construction with the heat receiver of the concentrated solar radiant flux and with a swashplate drive is given. The rig tests have been carried out ...

I. A. Tursunbaev; E. P. Orda; A. I. Lezhebokov; A. P. Korobkov

2010-11-01T23:59:59.000Z

347

Heater head for stirling engine  

DOE Patents [OSTI]

A monolithic heater head assembly which augments cast fins with ceramic inserts which narrow the flow of combustion gas and obtains high thermal effectiveness with the assembly including an improved flange design which gives greater durability and reduced conduction loss.

Corey, John A. (R.D. #2, Box 101 E, North Troy, NY 12182)

1985-07-09T23:59:59.000Z

348

RP-5 Renewable Energy Efficiency Project  

SciTech Connect (OSTI)

This is the fourth quarterly technical report for the RP-5 Renewable Energy Efficiency Project. The report summarizes the work progress, effort and activities that took place during the period of April 1, 2003 to June 30, 2003. However, IEUA is preparing a Supplemental report that will be mailed to the Department of Energy (DOE) by August 1, 2003, that provides additional information regarding IEUA's plan to expedite certain project activities. The report has been prepared in accordance with the Department of Energy (DOE) Guidelines. This technical report covers all meetings, discussions, and engineering and design activities that took place to finalize the project scope of work and complete the Request for Proposal (RFP) for the RP-5 Renewable Energy Efficiency Project. IEUA has decided to invite three more consulting engineering firms besides CH2M Hill, the Public Interest Energy Research (PIER) Consultant, to submit proposals for the design of the energy efficiency project. The proposals are currently in the evaluation phase and a decision is expected by the end of July. IEUA moved to its new headquarters building on June 13, 2003. The central plant is the system that supplies cooling and heating water to the headquarters building, and it primarily consists of equipment listed in the cooperative agreement under ''Chiller and Heater''. The central plant equipment was successfully installed and started. Other activities include gas analysis of three sources of low quality digester gas and foul air which could be used as fuel for an innovative flex microturbine. IEUA is also working with Stirling Energy Systems to determine if the Agency should be a host site for their equipment for testing the engine's operation on digester and natural gas. A matching funds update is also included in the Results and Discussion section, which presents the work effort performed by the PIER Consultant and the associated costs that serve as matching funds for the RP-5 Project during this report period.

Neil Clifton; Eliza Jane Whitman; Jamal A. Zughbi

2003-07-28T23:59:59.000Z

349

Modelling and selection of micro-CHP systems for domestic energy supply: The dimension of network-wide primary energy consumption  

Science Journals Connector (OSTI)

Abstract Mathematical modelling and optimisation of the Distributed Energy Supply System (DESS) using natural gas, both at the building level and the overall energy supply network level was carried out for three types of micro-combined heat and power (micro-CHP) solid oxide fuel cells, Stirling engines, internal combustion engines and for two different operating strategies cost-driven and primary energy-driven. The modelling framework captures the overall impact of the adoption of micro-CHP systems on the total primary energy usage in both generation and distribution. A detailed case study on the UK domestic energy supply was undertaken by applying both operating strategies to four different sizes of houses. The best technology selected in each case was evaluated in terms of the economics, total primary energy consumption, and reduction of central power generation requirement. It was shown that the primary energy consumption driven option selected technologies which could potentially achieve 610% reduction of total primary energy use compared to the base case where micro-CHP was not adopted, which is nearly two times the reduction by the cost-driven strategy.

Tekena Craig Fubara; Franjo Cecelja; Aidong Yang

2014-01-01T23:59:59.000Z

350

SES Calico Solar One Project Solar Power Plant | Open Energy Information  

Open Energy Info (EERE)

Calico Solar One Project Solar Power Plant Calico Solar One Project Solar Power Plant Jump to: navigation, search Name SES Calico Solar One Project Solar Power Plant Facility SES Calico Solar One Project Sector Solar Facility Type Photovoltaics Facility Status Proposed Developer Stirling Energy Systems, Tessera Solar Location San Bernardino County, California Coordinates 34.9592083°, -116.419389° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":34.9592083,"lon":-116.419389,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

351

Fiscal year 1986 Department of Energy authorization (transportation programs). Hearing before the Subcommittee on Transportation, Aviation and Materials of the Committee on Science and Technology, US House of Representatives, Ninety-Ninth Congress, First Session, February 27, 1985  

SciTech Connect (OSTI)

Representatives of DOE and companies engaged in automotive engine design, specifically Stirling, turbine, and electric engines, testified on the progress in the programs and the effect of reduced support from the administration for alternative energy systems. Noting that economic and security concerns associated with US dependence upon imported oil are unchanged, committee members objected to the 30% cut in the 1986 budget for research on alternative automotive engines and fuels. DOE representatives argued that the cut is consistent with the strategy of minimizing federal control and involvement in energy markets while promoting a balanced energy mix. Fund allocations are aimed at improving energy efficiency and fuel flexibility. Testimony by the engine designers reported the status and needs of the projects. An appendix with letters from affected industries and research groups follows the testimony of the four principal witnesses.

Not Available

1985-01-01T23:59:59.000Z

352

Indiana Energy Energy Challenges  

E-Print Network [OSTI]

Indiana Energy Conference Energy Challenges And Opportunities November 5, 2013 ­ 9:00 a.m. ­ 5:00 p spectrum of business sectors including: Energy Community Manufacturing Policymakers Finance Engineering of Energy & Water: A Well of Opportunity Our water and energy systems are inextricably linked. Energy

Ginzel, Matthew

353

Matter & Energy Wind Energy  

E-Print Network [OSTI]

See Also: Matter & Energy Wind Energy Energy Technology Physics Nuclear Energy Petroleum 27, 2012) -- Energy flowing from large-scale to small-scale places may be prevented from flowing, indicating that there are energy flows from large to small scale in confined space. Indeed, under a specific

Shepelyansky, Dima

354

Energy Efficiency & Renewable Energy  

E-Print Network [OSTI]

.S. Energy Consumption U.S. Primary Energy Consumption by Source and Sector Share of Energy Consumed byEnergy Efficiency & Renewable Energy 2010 Fuel Cell Project Kick-off Dr. Dimitrios Papageorgopoulos Fuel Cells Team Leader U.S. Department of Energy gy Fuel Cell Technologies Program September 28

355

Energy 101 | Department of Energy  

Office of Environmental Management (EM)

Energy Literacy Energy 101 Energy 101 What is the Energy 101 Initiative? The Energy 101 Dialogue Series: Dialogue 1: Energy in the Classroom Webinar Slides Increasing...

356

-okfl ^ ORNL/CON-172 Linear Harmonic Analysis of Free-  

E-Print Network [OSTI]

Stirling Engines N. C. J. Chen F. P. Griffin OPERATED BY MARTIN MARIETTA ENERGY SYSTEMS, INC/dynamic problem that is associated with a free-piston Stirling engine (FPSE). The governing equations. #12;ORNL/CON-172 Engineering Technology Division* LINEAR HARMONIC ANALYSIS OF FREE-PISTON STIRLING

Oak Ridge National Laboratory

357

Latent Heat Based High Temperature Solar Thermal Energy Storage for Power Generation  

Science Journals Connector (OSTI)

Abstract The design of a phase change material based high temperature solar thermal energy storage device is presented. Said unit will be used as an energy reserve for a 1 kWe domestic CCHP system using a Stirling engine to produce electric power. The thermal energy storage is conducted by means of the exploitation of the latent heat of fusion of the material contained inside the tank. This method was chosen because a great energy density is obtained and, at the same time, it is possible to extract the stored energy with very small variations on the temperature, which is a favorable feature for its intended purpose. The selection of the phase change material is discussed and the design of the different components of the proposed storage model is described. It is analyzed, as well, the insulating solution applied that minimizes heat losses. Finally, a comparison between experimental results of the tests performed on the first built to scale prototype and the data obtained from computer simulations is shown.

Bruno Crdenas; Noel Len

2014-01-01T23:59:59.000Z

358

Matter & Energy Solar Energy  

E-Print Network [OSTI]

See Also: Matter & Energy Solar Energy· Electronics· Materials Science· Earth & Climate Energy and the Environment · Renewable Energy· Environmental Science · Reference Chemical compound· Semiconductor· Gallium at the University of Illinois, the future of solar energy just got brighter. Although silicon is the industry

Rogers, John A.

359

Renewable Energy | Department of Energy  

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

Research Topics Renewable Energy Renewable Energy he Office of Energy Efficiency and Renewable Energy (EERE) 2014 Postdoctoral Research Awards are sponsored by: Solar Energy...

360

Energy 101 | Department of Energy  

Energy Savers [EERE]

Literacy Energy 101 Energy 101 What is the Energy 101 Initiative? The Energy 101 Dialogue Series: Dialogue 1: Energy in the Classroom Webinar Slides Increasing opportunities...

Note: This page contains sample records for the topic "rsl energy stirling" from the National Library of EnergyBeta (NLEBeta).
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361

Energy Conservation Renewable Energy  

E-Print Network [OSTI]

Energy Conservation Renewable Energy The Future at Rutgers University Facilities & Capital Planning Operations & Services Utilities Operations 6 Berrue Circle Piscataway, NJ 08854 #12;Energy Conservation Wh C ti ? R bl EWhy Conservation? Renewable Energy · Climate control reduces green house gases · Reduces

Delgado, Mauricio

362

Solar Energy  

Science Journals Connector (OSTI)

The sun is the main source of all alternative energies on the earths surface. Wind energy, bioenergy, ocean energy, and hydro energy are derived from the sun. However,...solar energy refers to the energy that is...

Tushar K. Ghosh; Mark A. Prelas

2011-01-01T23:59:59.000Z

363

Nuclear Energy & Energy Security  

Science Journals Connector (OSTI)

Safety issues related to use of nuclear energy and secure operation of nuclear installations are mail stones of great importance. Although none of technologies producing energy are absolutely safe it is obvious t...

Jumber Mamasakhlisi

2010-01-01T23:59:59.000Z

364

Water Energy | Department of Energy  

Office of Environmental Management (EM)

tax issues; and finance. Source: Stoel Rives LLP. EERE Video Resources Energy 101: Hydroelectric Power Energy 101: Marine and Hydrokinetic Energy News Articles and Blogs Energy...

365

Energy Sources | Department of Energy  

Energy Savers [EERE]

Sources Energy Sources Renewable Energy Renewable Energy Learn more about energy from solar, wind, water, geothermal and biomass. Read more Nuclear Nuclear Learn more about how we...

366

Energy Programs | Solar Energy  

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

Solar Energy Solar Energy Harnessing the Sun's Power for Fuel and Electricity Page 1 of 2 Solar Panels Featured Publication: Artificial Photosynthesis The average power need of the world's energy economy is 13 terawatts - a thousand trillion watts of power - and by 2050, that amount is expected to double. Fossil fuels and other nonrenewable sources are not the answer to the world's ever-expanding need for energy. Also, burning oil, coal or natural gas pollutes the atmosphere and contributes to global warming, which threatens the long-term viability of the earth and its inhabitants. Efficient utilization of energy from the sun may provide a solution to this important problem. The amount of clean, renewable energy derived from the sun in just one hour would meet the world's energy needs for a year. If

367

Energy Resource Library | Department of Energy  

Office of Environmental Management (EM)

Tribal Case Studies Energy Biomass and Waste-to-Energy Energy Efficiency Fossil Energy Geothermal Energy Renewable Energy Technologies Overview Solar Energy Water Energy Wind...

368

Nuclear Energy  

Science Journals Connector (OSTI)

Nuclear Energy ... A brief summary of the history and key concepts of nuclear energy. ... Nuclear / Radiochemistry ...

Charles D. Mickey

1980-01-01T23:59:59.000Z

369

Energy Technologies  

Broader source: Energy.gov [DOE]

Best practices, project resources, and other tools on energy efficiency and renewable energy technologies.

370

Thermoacoustic Stirling Engine --An acoustic amplifier  

E-Print Network [OSTI]

National Laboratory Condensed Matter and Thermal Physics Group MS K764, Los Alamos, NM 87545 backhaus) efficiencies 6" 24 " 72 " Acoustic power: 100 W 1 kW 50 kW T.A. efficiency: 23% 30% 25% All-metal bonded PZT stacks Metal joints, rather than epoxy joints, between PZT elements allow stacks to generate high power

Lee, Dongwon

371

Energy 101: Geothermal Energy  

Office of Energy Efficiency and Renewable Energy (EERE)

See how we can generate clean, renewable energy from hot water sources deep beneath the Earth's surface, through geothermal heat pumps.

372

Energy Saver | Department of Energy  

Energy Savers [EERE]

Save Energy, Save Money Start 2015 with an EnergyResolution to Save Money and Energy All Year Long Start 2015 with an EnergyResolution to Save Money and Energy All Year Long...

373

Energy Efficiency & Renewable Energy  

E-Print Network [OSTI]

Analysis U.S. Department of Energy #12;7 Some tax credits affecting fuel cells were expanded. Through new,000. Grants for Energy Property in Lieu of Tax Credits Allows facilities with insufficient tax liability to apply for a grant instead of claiming the Investment Tax Credit (ITC) or Production Tax Credit (PTC

374

Energy 101: Geothermal Energy  

ScienceCinema (OSTI)

See how we can generate clean, renewable energy from hot water sources deep beneath the Earth's surface. The video highlights the basic principles at work in geothermal energy production, and illustrates three different ways the Earth's heat can be converted into electricity.

None

2014-06-23T23:59:59.000Z

375

Energy 101: Geothermal Energy  

SciTech Connect (OSTI)

See how we can generate clean, renewable energy from hot water sources deep beneath the Earth's surface. The video highlights the basic principles at work in geothermal energy production, and illustrates three different ways the Earth's heat can be converted into electricity.

None

2014-05-27T23:59:59.000Z

376

Nuclear Energy  

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

Nuclear Energy Idaho National Laboratory is the Department of Energy's lead nuclear energy research and development facility. Building upon its legacy responsibilities,...

377

Nuclear Energy  

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

Research Programs >> Nuclear Energy Error Error Nuclear Energy Home - RCC cannot be displayed due to a timeout error. We recommend: * Refresh Nuclear Energy Home - RCC * Increasing...

378

Energy Literacy  

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

Biomass 2014 Conference Energy Literacy Linda Silverman Education and Workforce Development Department of Energy July 30, 2014 2 | Energy Education and Workforce Development...

379

wind energy  

National Nuclear Security Administration (NNSA)

5%2A en Pantex to Become Wind Energy Research Center http:nnsa.energy.govfieldofficesnponpopressreleasespantex-become-wind-energy-research-center

380

Hybrid Energy  

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

Hybrid Energy Integrated energy systems could improve fossil resource utilization, reduce greenhouse gas emissions and stabilize renewable energy contributions. These hybrid...

Note: This page contains sample records for the topic "rsl energy stirling" 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

Saving Energy | Department of Energy  

Office of Environmental Management (EM)

Saving Energy Saving Energy Saving Energy Walmart Partnership Brings LEDs to Parking Lots Walmart Partnership Brings LEDs to Parking Lots Read more Refrigerator Standards Save...

382

Solar Energy | Department of Energy  

Office of Environmental Management (EM)

Solar Energy Solar Energy Below are resources for Tribes on solar energy technologies. A Guide to Community Solar: Utility, Private, and Nonprofit Project Development A resource...

383

Energy A. Interconversion of energy  

Science Journals Connector (OSTI)

Energy A. Interconversion of energy ... This simple device demonstrates the interconversion of energy from a battery to a light bulb, motor, and the electrolysis of water. ...

Hubert N. Alyea

1966-01-01T23:59:59.000Z

384

Elemental Energy | Open Energy Information  

Open Energy Info (EERE)

Pacific Northwest Area Sector: Biofuels, Biomass, Buildings, Efficiency, Geothermal energy, Renewable Energy, Solar, Vehicles, Wind energy Website: http:www.elementalenergy.ne...

385

Energy Matters | Department of Energy  

Office of Environmental Management (EM)

Live Chat on Clean Energy and Innovation Vice President Biden Kicks Off Five Days of Earth Day Activities with Announcement of Major New Energy Efficiency Effort Energy...

386

Todd Energy | Open Energy Information  

Open Energy Info (EERE)

Todd Energy Place: New Zealand Sector: Renewable Energy Product: New Zealand energy company with operations in exploration, production and generation. It is also active in...

387

Leonardo Energy | Open Energy Information  

Open Energy Info (EERE)

ENERGY is the premier web site delivering a range of virtual libraries relating to electrical energy." References "Leonardo Energy" Retrieved from "http:en.openei.org...

388

Bryte Energy | Open Energy Information  

Open Energy Info (EERE)

Name: Bryte Energy Place: Leicestershire, United Kingdom Zip: LE3 0QP Sector: Hydro, Hydrogen, Renewable Energy, Services Product: Bryte Energy Ltd provides consultancy services...

389

Wind Energy | Department of Energy  

Office of Environmental Management (EM)

Wind Energy Wind Energy Below are resources for Tribes on wind energy technologies. 2012 Market Report on Wind Technologies in Distributed Applications Includes a breakdown of...

390

Aerowatt Energies | Open Energy Information  

Open Energy Info (EERE)

Aerowatt Energies Jump to: navigation, search Name: Aerowatt Energies Place: France Sector: Solar, Wind energy Product: France-based joint venture established to develop wind and...

391

Symmetry Energy  

E-Print Network [OSTI]

Examination of symmetry energy is carried out on the basis of an elementary binding-energy formula. Constraints are obtained on the energy value at the normal nuclear density and on the density dependence of the energy at subnormal densities.

P. Danielewicz

2006-07-15T23:59:59.000Z

392

Symmetry Energy  

E-Print Network [OSTI]

Examination of symmetry energy is carried out on the basis of an elementary binding-energy formula. Constraints are obtained on the energy value at the normal nuclear density and on the density dependence of the energy at subnormal densities.

Danielewicz, P

2006-01-01T23:59:59.000Z

393

Energy Transmission  

Broader source: Energy.gov [DOE]

Students will learn about everyday energy usage by completing a home energy audit and examine different lighting choices.

394

Biomass Energy and Energy Plants  

Science Journals Connector (OSTI)

Energy functions as vital material basis for the development of economy and society. China has become a major energy producer and consumer of energy and the energy demand is still growing. In 2006, Chinas tot...

2010-01-01T23:59:59.000Z

395

California Energy Commission STATE ENERGY  

E-Print Network [OSTI]

California Energy Commission CALIFORNIA STATE ENERGY EFFICIENT APPLIANCE REBATE PROGRAM GUIDELINES FOURTH EDITION ADOPTED BY THE CALIFORNIA ENERGY COMMISSION DECEMBER 16, 2009 AMENDED MARCH 24 Recovery and Reinvestment Act 2009 #12; i CALIFORNIA ENERGY COMMISSION Karen Douglas

396

California Energy Commission STATE ENERGY  

E-Print Network [OSTI]

California Energy Commission CALIFORNIA STATE ENERGY EFFICIENT APPLIANCE REBATE PROGRAM GUIDELINES SECOND THIRD EDITION ADOPTED BY THE CALIFORNIA ENERGY COMMISSION DECEMBER 16, 2009 AMENDED MARCH and Reinvestment Act 2009 #12; i CALIFORNIA ENERGY COMMISSION Karen Douglas Chairman James D

397

Energy Consumption Profile for Energy  

E-Print Network [OSTI]

317 Chapter 12 Energy Consumption Profile for Energy Harvested WSNs T. V. Prabhakar, R Venkatesha.............................................................................................318 12.2 Energy Harvesting ...................................................................................318 12.2.1 Motivations for Energy Harvesting...............................................319 12

Langendoen, Koen

398

Solo Energy | Open Energy Information  

Open Energy Info (EERE)

Solo Energy Place: Alameda, California Zip: CA 94501 Product: Solo Energy is a US-based manufacturer of micro-turbine energy products. References: Solo Energy1 This article is...

399

Energy Information Administration - Energy Efficiency, energy consumption  

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

Efficiency Efficiency Energy Efficiency energy consumption savings households, buildings, industry & vehicles The Energy Efficiency Page reflects EIA's information on energy efficiency and related information. This site provides an in depth discussion of the concept of energy efficiency and how it is measured, measurement, summaries of formal user meetings on energy efficiency data and measurement, as well as analysis of greenhouse gas emissions as related to energy use and energy efficiency. At the site you will find links to other sources of information, and via a listserv all interested analysts can share ideas, data, and ask for assistance on methodological problems associated with energy use, energy efficiency, and greenhouse gas issues. Contact: Behjat.Hojjati@eia.doe.gov

400

Energy Perspectives, Total Energy - Energy Information Administration  

Gasoline and Diesel Fuel Update (EIA)

Total Energy Total Energy Glossary › FAQS › Overview Data Monthly Annual Analysis & Projections this will be filled with a highchart PREVIOUSNEXT Energy Perspectives 1949-2011 September 2012 PDF | previous editions Release Date: September 27, 2012 Introduction Energy Perspectives is a graphical overview of energy history in the United States. The 42 graphs shown here reveal sweeping trends related to the Nation's production, consumption, and trade of energy from 1949 through 2011. Energy Flow, 2011 (Quadrillion Btu) Total Energy Flow diagram image For footnotes see here. Energy can be grouped into three broad categories. First, and by far the largest, is the fossil fuels-coal, petroleum, and natural gas. Fossil fuels have stored the sun's energy over millennia past, and it is primarily

Note: This page contains sample records for the topic "rsl energy stirling" 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

Energy Blog | Department of Energy  

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

Energy.gov » Energy Blog Energy.gov » Energy Blog Energy Blog RSS September 30, 2008 Energy-Efficient Cooking for Winter Cold-weather cooking means a seasonal shift in the kitchen. September 25, 2008 Question of the Week: Do Energy-Related Financial Incentives Prompt You to Be More Energy Efficient? Do energy-related financial incentives or assistance programs prompt you to be more energy efficient or to purchase products that can help you save energy? September 23, 2008 Six Places to Find Help with Your Energy Costs Read about six resources that can help you save energy and money in your home. September 18, 2008 Question of the Week: What are Your Strategies for Saving Money and Energy in the Winter? What are your strategies for saving money and energy in the winter? September 16, 2008

402

Distributed Energy | Department of Energy  

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

Distributed Distributed Energy Distributed Energy Distributed energy consists of a range of smaller-scale and modular devices designed to provide electricity, and sometimes also thermal energy, in locations close to consumers. They include fossil and renewable energy technologies (e.g., photovoltaic arrays, wind turbines, microturbines, reciprocating engines, fuel cells, combustion turbines, and steam turbines); energy storage devices (e.g., batteries and flywheels); and combined heat and power systems. Distributed energy offers solutions to many of the nation's most pressing energy and electric power problems, including blackouts and brownouts, energy security concerns, power quality issues, tighter emissions standards, transmission bottlenecks, and the desire for greater control over energy costs.

403

Technical and economic analysis of different cogeneration systems for energy production from biomass  

Science Journals Connector (OSTI)

This paper compares the results of a techno-economic performance analysis of seven plants for energy production from biomass with the aim of identifying the most effective solution. Small (?250 KWe) and micro (?100 KWe) size plants were investigated: 50 kWe diesel internal combustion engine coupled with a gasifier and 35 kWe Stirling engine coupled with a gasifier with an overall efficiency of 41.1% and 87.5% respectively, two biomass cogenerators, one of 25 kWe and the other of 100 kWe, 250 kWe Otto internal combustion engine coupled with a gasifier and 250 kWe diesel internal combustion engine coupled with a gasifier and 238 kWe biomass ORC plant. The technical analysis provided calculations for specific biomass consumption, electricity generation, heat produced and overall system efficiency. The economic evaluation was carried on through a discounted cash flow analysis. Data were provided by literature, analysis of case study at Italian and European level, and directly by the manufacturers of cogeneration systems. The results showed that a combined heat and power (CHP) generator is the best solution because it is economically viable with a high NPV and a PBP of five years and also technically performing with a global efficiency of 78.2% and a low biomass consumption.

Giancarlo Giacchetta; Mariella Leporini; Barbara Marchetti

2014-01-01T23:59:59.000Z

404

Gravitational energy  

E-Print Network [OSTI]

Observers at rest in a stationary spacetime flat at infinity can measure small amounts of rest-mass+internal energies+kinetic energies+pressure energy in a small volume of fluid attached to a local inertial frame. The sum of these small amounts is the total "matter energy" for those observers. The total mass-energy minus the matter energy is the binding gravitational energy. Misner, Thorne and Wheeler evaluated the gravitational energy of a spherically symmetric static spacetime. Here we show how to calculate gravitational energy in any static and stationary spacetime for isolated sources with a set of observers at rest. The result of MTW is recovered and we find that electromagnetic and gravitational 3-covariant energy densities in conformastatic spacetimes are of opposite signs. Various examples suggest that gravitational energy is negative in spacetimes with special symmetries or when the energy-momentum tensor satisfies usual energy conditions.

Joseph Katz

2005-10-20T23:59:59.000Z

405

Energy Efficiency | Department of Energy  

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

Resources » Energy Resource Library » Energy Efficiency Resources » Energy Resource Library » Energy Efficiency Energy Efficiency Below are resources for Tribes on energy efficiency. Energy Efficiency Opportunities at USDA Provides an overview of the various programs at the U.S. Department of Agriculture (USDA) that address energy use in rural America. The paper examines changes to existing energy efficiency programs proposed in both the House and Senate versions of the Farm Bill, and offers a set of recommendations to make energy efficiency resources at USDA more accessible. Source: American Council for an Energy-Efficient Economy. Energy Planning: A Guide for Northwest Indian Tribes Information and resources to help Tribes select, implement, and finance projects that conserve energy, generate renewable energy, construct and

406

Energy News | Department of Energy  

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

27,777,600 for Local Energy 27,777,600 for Local Energy Efficiency Improvements in Utah Block Grants to Support Jobs, Cut Energy Bills, and Increase Energy Independenc March 26, 2009 Obama Administration Announces Additional $27,172,500 for Local Energy Efficiency Improvements in Oklahoma Block Grants to Support Jobs, Cut Energy Bills, and Increase Energy Independence March 26, 2009 Obama Administration Announces Additional $12,522,900 for Local Energy Efficiency Improvements in New Hampshire Block Grants to Support Jobs, Cut Energy Bills, and Increase Energy Independence March 26, 2009 Obama Administration Announces Additional $12,019,800 for Local Energy Efficiency Improvements in Wyoming Block Grants to Support Jobs, Cut Energy Bills, and Increase Energy Independence March 26, 2009 Obama Administration Announces Additional $208,759,900 for Local Energy

407

Energy Efficiency & Renewable Energy  

E-Print Network [OSTI]

efficiency · Double renewable energy · One million plug-in hybrid cars generation by 2012Presidentialon sustainable biofuels and infrastructure · Increase fuel economy standards Environmental · Implement an economy infrastructure · creating high-skilled jobs in emerging technical fields Th k bj ti i t k f l ll titi ithThe key

408

Tidal Energy  

Science Journals Connector (OSTI)

Tidal energy, as interpreted in this essay, is considered to be the artificial extraction of energy from: either the rise or fall of the sea surface under the influence of tides or the extraction of energy from t...

Ian G. Bryden

2012-01-01T23:59:59.000Z

409

Tidal Energy  

Science Journals Connector (OSTI)

Tidal energy, as interpreted in this essay, is considered to be the artificial extraction of energy from: either the rise or fall of the sea surface under the influence of tides or the extraction of energy from t...

Ian G. Bryden

2013-01-01T23:59:59.000Z

410

Energy Storage  

Science Journals Connector (OSTI)

Any energy system includes at least two essential entities, namely, energy generators and energy consumers. Each of these elements has its associated characteristics, and it is not necessary that at all times ...

?brahim Diner; Calin Zamfirescu

2012-01-01T23:59:59.000Z

411

Geothermal energy  

Science Journals Connector (OSTI)

By virtue of its geographical distribution and the quantities of energy which could be tapped, the possible overall contribution of geothermal energy towards meeting Europes future energy requirements is much sm...

1977-01-01T23:59:59.000Z

412

Geothermal Energy  

Science Journals Connector (OSTI)

Geothermal energy is the natural heat of the earth....31 J. This quantity of energy is inexhaustible by any technical use (the present technical energy consumption of the world is of the...20 J).

O. Kappelmeyer

1982-01-01T23:59:59.000Z

413

Hydrogen energy  

Science Journals Connector (OSTI)

...use of hydrogen as an energy carrier will depend significantly...its utilization and conversion to electricity/heat...becomes an alternative energy carrier. However, various...effectively with conventional energy conversion technologies. The...

2007-01-01T23:59:59.000Z

414

Accelerate Energy  

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

the next year, the U.S. Department of Energy, the Council on Competitiveness and the Alliance to Save Energy will join forces to undertake Accelerate Energy Productivity 2030 - an...

415

Energy News | Department of Energy  

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

102,508,400 for Local Energy 102,508,400 for Local Energy Efficiency Improvements in Pennsylvania Block Grants to Support Jobs, Cut Energy Bills, and Increase Energy Independence March 26, 2009 Obama Administration Announces Additional $56,099,900 for Local Energy Efficiency Improvements in Washington Block Grants to Support Jobs, Cut Energy Bills, and Increase Energy Independenc March 26, 2009 Obama Administration Announces Additional $20,608,300 for Local Energy Efficiency Improvements in New Mexico Block Grants to Support Jobs, Cut Energy Bills, and Increase Energy Independence March 26, 2009 Obama Administration Announces Additional $67,187,600 for Local Energy Efficiency Improvements in Georgia Block Grants to Support Jobs, Cut Energy Bills, and Increase Energy Independence March 26, 2009

416

Energy Audits | Department of Energy  

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

Energy Audits Energy Audits Energy Audits September 9, 2008 - 11:30am Addthis John Lippert What does this mean for me? Energy audits can help you determine whether your home wastes energy, and pinpoint where energy is lost -- so you can evaluate what measures you can take to make your home more energy efficient. Autumn officially begins soon, and with it comes cooler weather and fewer hours of daylight. Fall is a great time to start thinking of a home energy audit so that you can prepare your home for winter, saving energy and money in the process. The main purpose of an energy audit is to determine whether your home wastes energy, and to pinpoint where energy is being lost so you can evaluate what measures you can take to make your home more energy efficient. Audits also determine the efficiency of your home's heating

417

Energy Audits | Department of Energy  

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

Energy Audits Energy Audits Energy Audits September 9, 2008 - 11:30am Addthis John Lippert What does this mean for me? Energy audits can help you determine whether your home wastes energy, and pinpoint where energy is lost -- so you can evaluate what measures you can take to make your home more energy efficient. Autumn officially begins soon, and with it comes cooler weather and fewer hours of daylight. Fall is a great time to start thinking of a home energy audit so that you can prepare your home for winter, saving energy and money in the process. The main purpose of an energy audit is to determine whether your home wastes energy, and to pinpoint where energy is being lost so you can evaluate what measures you can take to make your home more energy efficient. Audits also determine the efficiency of your home's heating

418

Energy News | Department of Energy  

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

31,577,900 for Local Energy 31,577,900 for Local Energy Efficiency Improvements in Alabama Block Grants to Support Jobs, Cut Energy Bills, and Increase Energy Independence March 26, 2009 Obama Administration Announces Additional $12,810,300 for Local Energy Efficiency Improvements in North Dakota Block Grants to Support Jobs, Cut Energy Bills, and Increase Energy Independence March 26, 2009 Obama Administration Announces Additional $24,522,900 for Local Energy Efficiency Improvements in Connecticut Block Grants to Support Jobs, Cut Energy Bills, and Increase Energy Independence March 26, 2009 Obama Administration Announces Additional $42,380,100 for Local Energy Efficiency Improvements in Indiana Block Grants to Support Jobs, Cut Energy Bills, and Increase Energy Independence March 26, 2009

419

Energy News | Department of Energy  

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

26, 2012 26, 2012 U.S. Department of Energy and the MIT Energy Initiative Announce a Women in Clean Energy Program for United States At the Third Clean Energy Ministerial in London today, the U.S. Department of Energy announced a three-part plan to help implement the Clean Energy Education and Empowerment initiative or "C3E" - a Ministerial program aimed at attracting more women to clean energy careers and supporting their advancement into leadership positions. April 26, 2012 Coalition of World Energy Ministers Commit to Improvements in Energy Efficiency, Renewable Energy, Energy Access Leaders from the 23-government Clean Energy Ministerial (CEM) and the UN Secretary-General's Sustainable Energy for All initiative (SE4All) outlined specific commitments by participating countries and private sector

420

PROPULSION AND ENERGY Terrestrial energy  

E-Print Network [OSTI]

PROPULSION AND ENERGY Terrestrial energy On the morning of Monday, August 29, Hurri- cane Katrina dependence we all have on power and energy systems. Nine major oil re- fineries in Louisiana and Mississippi- trial energy community is the question of why alternative energy sources, such as coal, solar, wind

Aggarwal, Suresh K.

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


421

Energy Management  

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

12 months) Identify and prioritize activities and projects that reduce energy use Connect energy efficiency to other business objectives (i.e. safety, quality, etc.) Develop...

422

Energy Management  

Broader source: Energy.gov [DOE]

Students will review energy basics and what they have learned in energy conservation efforts to report this improved knowledge to their home and school communities.

423

Geothermal Energy  

Science Journals Connector (OSTI)

Geothermal energy has been confirmed as being potentially a ... significant contributor to the Communitys supply of energy from indigenous resources. However, its expected... 1. ...

J. T. McMullan; A. S. Strub

1981-01-01T23:59:59.000Z

424

Energy Systems  

Office of Energy Efficiency and Renewable Energy (EERE)

DOE Industrial Technologies Program Save Energy Now Webinar that provides information on how steam trap monitoring saves energy in manufacturing facilities.

425

Energy Policy ] (  

E-Print Network [OSTI]

energy consumption on a per capita or per productivity basis (e.g. kWh/capita, kWh/GDP), are widely usedEnergy Policy ] (

Jacobson, Arne

426

Materializing Energy  

E-Print Network [OSTI]

Motivated and informed by perspectives on sustainability and design, this paper draws on a diverse body of scholarly works related to energy and materiality to articulate a perspective on energy-as-materiality and propose a design approach of materializing energy. Three critical themes are presented: the intangibility of energy, the undifferentiatedness of energy, and the availability of energy. Each theme is developed through combination of critical investigation and design exploration, including the development and deployment of several novel design artifacts: Energy Mementos and The Local Energy Lamp. A framework for interacting with energy-as-materiality is proposed involving collecting, keeping, sharing, and activating energy. A number of additional concepts are also introduced, such as energy attachment, energy engagement, energy attunement, local energy and energy meta-data. Our work contributes both a broader, more integrative design perspective on energy and materiality as well as a diversity of more specific concepts and artifacts that may be of service to designers and researchers of interactive systems concerned with sustainability and energy. Author Keywords Sustainability, energy, materiality, design, design theory

James Pierce; Eric Paulos

427

Renewable Energy  

Broader source: Energy.gov [DOE]

Learn how the Energy Department's investments in clean, renewable energy technologies -- including wind, solar and geothermal sources -- are helping strengthen the American economy.

428

Energy Science  

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

sources of energy requires us to understand, predict, and ultimately control matter and energy at the electronic, atomic, and molecular levels. Light-source facilities-the...

429

Energy demand  

Science Journals Connector (OSTI)

The basic forces pushing up energy demand are population increase and economic growth. From ... of these it is possible to estimate future energy requirements.

Geoffrey Greenhalgh

1980-01-01T23:59:59.000Z

430

wave energy  

Science Journals Connector (OSTI)

wave energy ? Wellenenergie f [Die einer Schwerewelle innewohnende potentielle und kinetische Energie. Sie ist etwa proportional dem Quadrat der Wellenhhe. Zeichen: E we ...

2014-08-01T23:59:59.000Z

431

Renewable Energy & Energy Efficiency Projects: Loan Guarantee...  

Office of Environmental Management (EM)

Renewable Energy & Energy Efficiency Projects: Loan Guarantee Solicitation Renewable Energy & Energy Efficiency Projects: Loan Guarantee Solicitation Plenary III: Project Finance...

432

Renewable Energy & Efficient Energy Projects Solicitation | Department...  

Office of Environmental Management (EM)

Services Solicitations Renewable Energy & Efficient Energy Projects Solicitation Renewable Energy & Efficient Energy Projects Solicitation Informational Materials Renewable...

433

National Renewable Energy Laboratory's Energy Systems Integration...  

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

National Renewable Energy Laboratory's Energy Systems Integration Facility Overview National Renewable Energy Laboratory's Energy Systems Integration Facility Overview This...

434

Energy Economy | Department of Energy  

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

August 28, 2013 August 28, 2013 Photo from the Energy Department archive. Energy Department Releases New Clean Energy Finance Guide A new resource can help state, local and tribal governments -- and their partners in the private sector -- find financing for energy efficiency and renewable energy projects. August 28, 2013 Federal Finance Facilities Available for Energy Efficiency Upgrades and Clean Energy Deployment "Federal Finance Facilities Available for Energy Efficiency Upgrades and Clean Energy Deployment" is a resource guide that lists the various federal financing programs for which energy efficiency and clean energy qualify - meant to make it easier for state, local and tribal leaders, along with their partners in the private sector, to find capital for energy

435

Energy Blog | Department of Energy  

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

Energy.gov » Energy Blog Energy.gov » Energy Blog Energy Blog RSS October 24, 2008 2009 Fuel Economy Guide and FuelEconomy.gov Learn about the 2009 Fuel Economy Guide here. October 21, 2008 Purchasing a New Energy-Efficient Central Heating System Think you know heating systems? Check this out before purchasing a new one. October 16, 2008 Question of the Week: What Have You Done to Improve Your Windows? Share your thoughts on window efficiency upgrades with us! October 15, 2008 Improving the Energy Efficiency of Existing Windows Make your windows more efficient and save energy and money. October 13, 2008 Purchasing Energy-Efficient Windows Need help shopping for energy efficient windows? Look here. October 9, 2008 Question of the Week: Besides Cost, What Motivates You to Save Energy? Share your thoughts on saving energy.

436

Energy Speeches | Department of Energy  

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

Energy.gov » Energy Speeches Energy.gov » Energy Speeches Energy Speeches RSS June 18, 2013 Testimony Before the House Committee on Science, Space, and Technology Secretary Moniz's full written testimony prepared for the House Committee on Science, Space, and Technology. June 13, 2013 Testimony Before the House Committee on Energy and Commerce Subcommittee on Energy and Power Secretary Moniz's full written testimony prepared for the House Committee on Energy and Commerce, Subcommittee on Energy and Power. November 30, 2012 Hurricane Sandy and Our Energy Infrastructure Acting Under Secretary of Energy David Sandalow's remarks, as delivered, at the Columbia University Energy Symposium on November 30, 2012. September 18, 2012 Secretary Chu's Remarks at the 2012 IAEA General Conference -- As Prepared

437

ENERGY STAR | Open Energy Information  

Open Energy Info (EERE)

ENERGY STAR ENERGY STAR Jump to: navigation, search Logo: ENERGY STAR Name ENERGY STAR Year founded 1992 Notes Partnered with more than 20,000 public sector organizations. Website https://www.energystar.gov/ind References About ENERGY STAR[1] LinkedIn Connections Contents 1 About ENERGY STAR 1.1 For the Home 1.2 For Business 1.3 References About ENERGY STAR ENERGY STAR is a joint program of the U.S. Environmental Protection Agency and the U.S. Department of Energy helping us all save money and protect the environment through energy efficient products and practices. Results are already adding up. Americans, with the help of ENERGY STAR, saved enough energy in 2010 alone to avoid greenhouse gas emissions equivalent to those from 33 million cars - all while saving nearly $18 billion on their

438

Energy Economy | Department of Energy  

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

Energy Economy Energy Economy Energy Economy January 6, 2014 The Clean Energy Economy in Three Charts Over the last five years, American inventors and investors have made significant progress in developing and deploying key clean energy technologies -- supported by Energy Department policies. December 3, 2013 Additional Funding & Financing Resources Want to know more about funding and financing for energy projects and businesses? Check out general resources at the Energy Department and other parts of the federal government. December 3, 2013 Funding & Financing for Energy Businesses Do you own or represent an energy business? Learn about funding and financing resources from the Energy Department and other U.S. government agencies. November 15, 2013 Energy Department Authorizes Additional Volume at Proposed Freeport LNG

439

Energy News | Department of Energy  

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

6, 2009 6, 2009 Obama Administration Announces Additional $75,468,200 for Local Energy Efficiency Improvements in New Jersey Block Grants to Support Jobs, Cut Energy Bills, and Increase Energy Independence March 26, 2009 Obama Administration Announces Additional $15,068,200 for Local Energy Efficiency Improvements in Hawaii Block Grants to Support Jobs, Cut Energy Bills, and Increase Energy Independence March 26, 2009 Obama Administration Announces Additional $24,624,200 for Local Energy Efficiency Improvements in Louisiana Block Grants to Support Jobs, Cut Energy Bills, and Increase Energy Independence March 26, 2009 Obama Administration Announces Additional $10,323,300 for Local Energy Efficiency Improvements in Vermont Block Grants to Support Jobs, Cut Energy Bills, and Increase Energy

440

Soltech Energy | Open Energy Information  

Open Energy Info (EERE)

Tullinge, Sweden Zip: s-146 33 Sector: Solar Product: SolTech Energy develops smart solar energy solutions for residential use. References: Soltech Energy1 This article is a...

Note: This page contains sample records for the topic "rsl energy stirling" 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

Energy Blog | Department of Energy  

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

of Energy's Office of Energy Efficiency and Renewable Energy announced a new appliance rebate program. September 3, 2009 Are You Going to the Solar Decathlon? Drew told you about...

442

Department of Energy - Energy Tomorrow  

Energy Savers [EERE]

Energy Innovator Program http:energy.govarticleslab-market-does-america-s-next-top-energy-innovator-program

443

Energy Blog | Department of Energy  

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

April 9, 2009 Question of the Week: How Will You Landscape for Energy Efficiency? How will you landscape for energy efficiency? April 7, 2009 Landscaping with an Eye To Energy...

444

Exciting youth about science and engineering : the Stirling Engine class ; Stirling Engine class .  

E-Print Network [OSTI]

??The problem of a lack of science and engineering opportunities for youth has been identified. While other programs and attempted solutions exist, a novel approach (more)

Barragn, Patrick R

2008-01-01T23:59:59.000Z

445

Department of Energy - Energy Economy  

446

Saving Energy | Department of Energy  

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

Saving Energy Saving Energy Walmart Partnership Brings LEDs to Parking Lots Walmart Partnership Brings LEDs to Parking Lots Read more Refrigerator Standards Save Consumers ...

447

Kawar Energy | Open Energy Information  

Open Energy Info (EERE)

Kawar Energy Jump to: navigation, search Name: Kawar Energy Place: Amman, Jordan Zip: 11118 Sector: Services Product: Amman-based project developer, focused on bringing...

448

Energy Conservation | Department of Energy  

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

will review their own home energy audits to construct a plan to reduce their energy usage. Curriculum Language Arts, Mathematics, Economics Plan Time 60+ minutes Materials...

449

Energy Speeches | Department of Energy  

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

September 18, 2013 Secretary Ernest J. Moniz's Written Testimony on Climate Change before the House Committee on Energy and Commerce Subcommittee on Energy and Power The...

450

Cavallo Energy | Open Energy Information  

Open Energy Info (EERE)

energy management, finance procurement and engineering company. The firm offers engineering services to solar projects. References: Cavallo Energy1 This article is a...

451

Clairvoyant Energy | Open Energy Information  

Open Energy Info (EERE)

Clairvoyant Energy builds, owns and operates solar photovoltaic systems. It provides engineering, design, installation and finance services. References: Clairvoyant Energy1...

452

Energy Tomorrow | Department of Energy  

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

integrated biorefinery in Luna County, New Mexico. | Photo courtesy of Sapphire Energy. Sapphire Energy Out to Prove That Crud Can Take On Crude For most people, the notion...

453

Energy Literacy | Department of Energy  

Energy Savers [EERE]

Linda Silverman, Team Lead, Workforce Development and Education, U.S. Department of Energy silvermanbiomass2014.pdf More Documents & Publications Energy Literacy Webcast:...

454

Energy Enigma | Department of Energy  

Energy Savers [EERE]

about the student activitylesson plan from your search. Grades 5-8, 9-12 Subject Bioenergy, Geothermal, Solar, Wind Energy, Water, Energy Choices and Society Summary Students...

455

Energy Analysis | Department of Energy  

Energy Savers [EERE]

decision-making by delivering analytical products in four main areas: Data Resources, Market Intelligence, Energy Systems Analysis, and Portfolio Impacts Analysis. The Energy...

456

Land Energy | Open Energy Information  

Open Energy Info (EERE)

on harnessing biomass. Activities include wood-pellet production, biomass-combined heat and power and forestry and energy-crop development. References: Land Energy1 This...

457

Wave Energy | Open Energy Information  

Open Energy Info (EERE)

List of Wave Energy Incentives Retrieved from "http:en.openei.orgwindex.php?titleWaveEnergy&oldid267203" Category: Articles with outstanding TODO tasks...

458

Tidal Energy | Open Energy Information  

Open Energy Info (EERE)

Add description List of Tidal Energy Incentives Retrieved from "http:en.openei.orgwindex.php?titleTidalEnergy&oldid267201" Category: Articles with outstanding TODO tasks...

459

Altostrata Energy | Open Energy Information  

Open Energy Info (EERE)

Altostrata Energy Place: England, United Kingdom Product: London-based cleantech investment and advisory firm. References: Altostrata Energy1 This article is a stub. You can...

460

Energy Production | Department of Energy  

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

Production Energy Production Below is information about the student activitylesson plan from your search. Grades K-4, 5-8 Subject Energy Choices and Society, Geothermal, Solar,...

Note: This page contains sample records for the topic "rsl energy stirling" 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

Geothermal energy | Open Energy Information  

Open Energy Info (EERE)

energy: Geothermal energy is heat extracted from the Earth ( Geo (Earth) + thermal (heat) ) Other definitions:Wikipedia Reegle Geothermalpower.jpg Looking for the Geothermal...

462

Energy Storage | Department of Energy  

Energy Savers [EERE]

Energy Storage Energy Storage One of the distinctive characteristics of the electric power sector is that the amount of electricity that can be generated is relatively fixed over...

463

Energy House  

Broader source: Energy.gov [DOE]

Students learn about energy conservation and efficiency by using various materials to insulate a cardboard house.

464

Energy Saver | Department of Energy  

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

Save Energy, Save Money Save Energy, Save Money Home Heating Infographic Everything you need to know about home heating, including how heating systems work, the different types on the market and proper maintenance. Read more Fall and Winter Energy-Saving Tips Simple and inexpensive actions can help you save energy and money when the weather is cool. Check out tips for saving energy and money this fall and winter. Read more New PSAs Share Tips for Saving Energy The Energy Department partnered with the Ad Council to create PSAs that offer practical, no-cost actions that both homeowners and renters can take to save money on their energy bills. Read more Energy Efficiency Tax Credits to Consider for 2013 Did you miss the energy efficiency and renewable energy tax credits for 2012? Learn how you can take advantage of them this year.

465

Energy Basics | Department of Energy  

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

Services » Energy Basics Services » Energy Basics Energy Basics The basics about renewable energy and energy efficiency technologies: learn how they work, what they're used for, and how they can improve our lives, homes, businesses, and industries. The basics about renewable energy and energy efficiency technologies: learn how they work, what they're used for, and how they can improve our lives, homes, businesses, and industries. RENEWABLE ENERGY TECHNOLOGIES Biomass Technology Basics Geothermal Technology Basics Hydrogen and Fuel Cell Technology Basics Hydropower Technology Basics Ocean Energy Technology Basics Solar Energy Technology Basics Wind Energy Technology Basics More HOME & BUILDING TECHNOLOGIES Lighting and Daylighting Basics Passive Solar Building Design Basics Space Heating and Cooling Basics

466

Tierra Energy | Open Energy Information  

Open Energy Info (EERE)

Tierra Energy Tierra Energy Jump to: navigation, search Name Tierra Energy Place Austin, Texas Zip 78731 Sector Wind energy Product Tierra Energy is an energy company based in Austin, Texas, that is building a portfolio of windpower and natural gas-fired power generation projects. References Tierra Energy[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Tierra Energy is a company located in Austin, Texas . References ↑ "Tierra Energy" Retrieved from "http://en.openei.org/w/index.php?title=Tierra_Energy&oldid=352280" Categories: Clean Energy Organizations Companies Organizations Stubs What links here Related changes Special pages Printable version Permanent link

467

Energy Saver | Department of Energy  

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

Save Energy, Save Money Save Energy, Save Money Home Heating Infographic Everything you need to know about home heating, including how heating systems work, the different types on the market and proper maintenance. Read more Fall and Winter Energy-Saving Tips Simple and inexpensive actions can help you save energy and money when the weather is cool. Check out tips for saving energy and money this fall and winter. Read more New PSAs Share Tips for Saving Energy The Energy Department partnered with the Ad Council to create PSAs that offer practical, no-cost actions that both homeowners and renters can take to save money on their energy bills. Read more Energy Efficiency Tax Credits to Consider for 2013 Did you miss the energy efficiency and renewable energy tax credits for 2012? Learn how you can take advantage of them this year.

468

ANNUAL ENERGY  

Gasoline and Diesel Fuel Update (EIA)

(93) (93) ANNUAL ENERGY OUTLOOK 1993 With Projections to 2010 EIk Energy Information Administration January 1993 For Further Information ... The Annual Energy Outlook (AEO) is prepared by the Energy Information Administration (EIA), Office of Integrated Analysis and Forecasting, under the direction of Mary J. Hutzler (202/586-2222). General questions concerning energy demand or energy markets may be addressed to Mark E. Rodekohr (202/586-1130), Director of the Energy Demand and Integration Division. General questions regarding energy supply and conversion activities may be addressed to Mary J. Hutzler (202/586-2222), Acting Director of the Energy Supply and Conversion Division. Detailed questions may be addressed to the following EIA analysts: Framing the 1993 Energy Outlook ............. Susan H. Shaw (202/586-4838)

469

Energy Savers: Fireplaces | Department of Energy  

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

Savers: Fireplaces Energy Savers: Fireplaces Saving energy in fireplace use Energy Savers: Fireplaces More Documents & Publications Energy Saver 101: Home Heating Energy Saver...

470

Tribal Renewable Energy Foundational Course: Strategic Energy...  

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

Strategic Energy Planning Tribal Renewable Energy Foundational Course: Strategic Energy Planning Watch the U.S. Department of Energy Office of Indian Energy foundational course...

471

Tribal Renewable Energy Foundational Course: Assessing Energy...  

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

Assessing Energy Needs and Resources Tribal Renewable Energy Foundational Course: Assessing Energy Needs and Resources Watch the U.S. Department of Energy Office of Indian Energy...

472

Efficiency Analysis of Natural Gas Residential Micro-cogeneration Systems  

Science Journals Connector (OSTI)

The systems feature different energy conversion technologies: Stirling engine (WhisperGen), spark-ignition internal combustion (IC) engine (FreeWatt), and polymer electrolyte fuel cell (PEFC) (EBARA Ballard). ... The Stirling engine is the least expensive that requires the least maintenance. ... Experimental Determination of the Efficiency and Emissions of a Residential Microcogeneration System Based on a Stirling Engine and Fueled by Diesel and Ethanol ...

Amir A. Aliabadi; Murray J. Thomson; James S. Wallace

2010-01-22T23:59:59.000Z

473

CALIFORNIA ENERGY CALIFORNIA'S STATE ENERGY  

E-Print Network [OSTI]

CALIFORNIA ENERGY COMMISSION CALIFORNIA'S STATE ENERGY EFFICIENT APPLIANCE REBATE PROGRAM INITIAL November 2009 CEC-400-2009-026-CMD Arnold Schwarzenegger, Governor #12;#12;CALIFORNIA ENERGY COMMISSION Program Manager Paula David Supervisor Appliance and Process Energy Office Valerie T. Hall Deputy Director

474

Energy Blog | Department of Energy  

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

23, 2012 23, 2012 Breaking down the latest Clean Energy Roundup from the Environmental Entrepreneurs. More details here. | Infographic by Sarah Gerrity. INFOGRAPHIC | Made in America: Clean Energy Jobs As the clean energy economy grows -- thousands of clean energy job opportunities are being created all across the country. August 23, 2012 New Report Highlights Growth of America's Clean Energy Job Sector Taking a moment to break-down key findings from the latest Clean Energy Jobs Roundup. August 21, 2012 Solar Energy for All: How-To Guides Encourage Growth of Solar Communities How to join forces with your neighbors to start a community shared solar project. August 20, 2012

475

Energy Insight | Open Energy Information  

Open Energy Info (EERE)

Energy Insight Energy Insight Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Energy Insight Agency/Company /Organization: Tendril Connect Sector: Energy Focus Area: Energy Efficiency Resource Type: Software/modeling tools User Interface: Website Website: greenbuttonconnect.com/home Web Application Link: greenbuttonconnect.com/apps/energyinsight/? OpenEI Keyword(s): Green Button Apps Language: English Energy Insight Screenshot References: Tendril[1] Green Button Connect[2] Logo: Energy Insight An application that analyzes and presents your energy data in easy-to-understand charts. Energy Insight enables you to dynamically sort the chart data using a variety of time periods: hourly, daily, monthly. In addition to the charts, the Energy Insight application can display your

476

Home Energy Yardstick : ENERGY STAR  

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

Home > Home Improvement > Home Energy Yardstick Home > Home Improvement > Home Energy Yardstick Home Energy Yardstick Assess the energy efficiency of your home and see how it measures up: EPA's Home Energy Yardstick provides a simple assessment of your home's annual energy use compared to similar homes. By answering a few basic questions about your home, you can get: Your home's Home Energy Yardstick score (on a scale of 1 to 10); Insights into how much of your home's energy use is related to heating and cooling versus other everyday uses like appliances, lighting, and hot water; Links to guidance from ENERGY STAR on how to increase your home's score, improve comfort, and lower utility bills; and An estimate of your home's annual carbon emissions. Learn more about how the Home Energy Yardstick works.

477

Energy News | Department of Energy  

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

September 25, 2013 September 25, 2013 New Energy Dept., Berkeley Lab Report on Energy Service Company Industry Growth Report Details Market Size and Industry Trends in Energy Savings Performance-Based Contracting September 25, 2013 U.S. Manufacturers Save $1 Billion, 11 Million Tons of CO2 through Energy Efficiency Investments Energy Department Releases Progress Update on Better Buildings, Better Plants Program September 20, 2013 Energy Department Invests $60 Million to Train Next Generation Nuclear Energy Leaders, Pioneer Advanced Nuclear Technology Building on President Obama's Climate Action Plan to continue America's leadership in clean energy innovation, the Energy Department announced more than $60 million in nuclear energy research awards and improvements to university research reactors and infrastructure.

478

ENERGY STAR® | Department of Energy  

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

Appliance & Equipment Standards » ENERGY STAR® Appliance & Equipment Standards » ENERGY STAR® ENERGY STAR® ENERGY STAR® is a joint program of the Environmental Protection Agency (EPA) and the Department of Energy (DOE). Its goal is to help consumers, businesses, and industry save money and protect the environment through the adoption of energy efficient products and practices. The ENERGY STAR label identifies top performing, cost-effective products, homes, and buildings. Since inception, ENERGY STAR has shown impressive results: in 2010 Americans saved enough energy to avoid greenhouse gas emissions equivalent to those from 33 million cars, while saving nearly $18 billion on utility bills. A Memorandum of Understanding between EPA and DOE on improving the energy efficiency of products and buildings establishes working arrangements to

479

Energy Blog | Department of Energy  

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

December 2, 2008 December 2, 2008 Tips to Save Energy During the Holidays Tips to help you save energy and money, even as you celebrate the holidays. November 25, 2008 Saving Energy Is a Lifestyle, Not a Diet Why saving energy should be important to you. November 20, 2008 Question of the Week: What Kind of Heating System Do You Have in Your Home? What kind of heating system do you have in your home? November 18, 2008 Energy Resources for Students and Teachers The Office of Energy Efficiency and Renewable Energy has resources to help students research that report or teachers set up lesson plans. November 13, 2008 Question of the Week: What Do You Do to Save Energy? Since we started this blog, much of our focus has been on winter energy savings and the steps you can take specifically to save energy in the

480

ENERGY STAR  

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

New Energy Technology 2754 Compass Drive, Grand Junction, CO 81506 Business: Energy Management Services/Consulting Sarah Faverman Phone: 970-243-0255 / Fax: 970-245-4268 Email: sarah@newenergytech.net Customer JCPenney Company, Inc. 6501 Legacy Drive, Plano, TX 75024 Business: Retail Rob Keller, P.E., Energy Management & Engineering Services Director Phone: 972-431-1788 / Fax: 972-531-1788 Email: rkeller@jcpenney.com New Energy Technology helped JCPenney earn the first ENERGY STAR labels for retail buildings and Partner of the Year Award. Project Scope New Energy Technology (NET) supports JCPenney's (JCP) energy conservation culture through three programs focused on high-quality energy data and energy management. Through its automated benchmarking

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481

Energy News  

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

news-archive 1000 Independence Ave. SW Washington DC news-archive 1000 Independence Ave. SW Washington DC 20585 202-586-5000 en Energy Department Launches Competition to Encourage the Creation of Innovative Energy Apps Built with Open Data http://energy.gov/articles/energy-department-launches-competition-encourage-creation-innovative-energy-apps-built-open energy-department-launches-competition-encourage-creation-innovative-energy-apps-built-open" class="title-link">Energy Department Launches Competition to Encourage the Creation of Innovative Energy Apps Built with Open Data

482

Energy Sources | Department of Energy  

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

9, 2013 9, 2013 Students from the University of Maryland's Designing a Sustainable World course, a class based on the Energy Department's Energy 101 Course Framework, present their end-of-year design projects. | Photo courtesy of the University of Maryland. Class Is Now in Session: Energy 101 This week, energy.gov is going back to school. Our first stop: a look at how the Energy Department's Energy 101 Course Framework is helping colleges and universities offer energy-related classes. July 11, 2013 Department of Energy Releases New Report on Energy Sector Vulnerablities Report Details Effects of Climate Change and Extreme Weather on Nation's Critical Energy Infrastructure and Supply June 21, 2013 Did you know: Incandescent light bulbs only convert about 10 percent of the energy they consume into light and the rest is released as heat. The Energy Department's Energy Bike demonstrates the physical effort it takes to power incandescent, compact fluorescent and LED light bulbs. Students from Churchill Road Elementary School in Virginia recently pedaled for power at their Earth Day assembly, learning firsthand about energy efficiency. | Photo courtesy of the Energy Department.

483

HDR geothermal energy  

Science Journals Connector (OSTI)

HDR geothermal energy, petrothermal geothermal energy, Hot Dry Rock energy ? Hot-Dry-Rock Energie f, (geothermische) HDR-Energie, petrothermale geothermische Energie f, petrothermale Geothermie [Gege...

2014-08-01T23:59:59.000Z

484

petrothermal geothermal energy  

Science Journals Connector (OSTI)

petrothermal geothermal energy, HDR geothermal energy, Hot Dry Rock energy ? Hot-Dry-Rock Energie f, (geothermische) HDR-Energie, petrothermale geothermische Energie f, petrothermale Geothermie [Gege...

2014-08-01T23:59:59.000Z

485

#AskEnergySaver: Home Energy Audits | Department of Energy  

Office of Environmental Management (EM)

Energy Audits AskEnergySaver: Home Energy Audits January 24, 2014 - 5:48pm Addthis A home energy audit is the first step to improving your home's energy efficiency. Making energy...

486

Energy Blog | Department of Energy  

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

31, 2010 31, 2010 Empowering Actions to Save Energy Across the Country Some of my favorite reminders of the rapid strides we are taking toward a clean energy future are the daily stories we feature on our Energy Empowers clean energy blog, and yesterday, we launched our brand new redesigned Energy Empowers Web site. August 30, 2010 Response to Weatherization Questions We respond to the questions about weatherization you asked on Twitter. August 30, 2010 Energy 101 Videos: Learn More About the Basics! A brand new Web site on EERE talks about the basics of how energy efficiency and renewable energy technologies work. But I wanted to point out something in particular: the Energy 101 series of videos! August 30, 2010 Allison's bus hybrid drive unit for transit buses can be found in 164 cities around the world. The company will use similar technology in the commercial truck hybrid system. | Photo courtesy of Allison Transmission

487

Gander Energy | Open Energy Information  

Open Energy Info (EERE)

Gander Energy Gander Energy Jump to: navigation, search Name Gander Energy Place Ontario, Canada Zip M1R 2T6 Sector Solar Product Ontario based solar power project developer. References Gander Energy[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Gander Energy is a company located in Ontario, Canada . References ↑ "Gander Energy" Retrieved from "http://en.openei.org/w/index.php?title=Gander_Energy&oldid=345654" Categories: Clean Energy Organizations Companies Organizations Stubs What links here Related changes Special pages Printable version Permanent link Browse properties About us Disclaimers Energy blogs Linked Data Developer services OpenEI partners with a broad range of international organizations to grow

488

Energy News | Department of Energy  

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

July 25, 2012 July 25, 2012 Agriculture and Energy Departments Announce New Investments to Drive Innovations in Biofuels and Biobased Products U.S. Departments of Agriculture and Energy announced a $41 million investment that will drive more efficient biofuels production and feedstock improvements. July 24, 2012 Obama Administration Releases Roadmap for Solar Energy Development on Public Lands As part of President Obama's all-of-the-above energy strategy, the Department of the Interior, in partnership with the Department of Energy, will publish the Final Programmatic Environmental Impact Statement (PEIS) for solar energy development in six southwestern states. July 24, 2012 Maine Deploys First U.S. Commercial, Grid-Connected Tidal Energy Project Energy Department-Supported Project Diversifies Energy Mix, Tests Promising

489

Definition: Energy | Open Energy Information  

Open Energy Info (EERE)

Energy Energy Broadly defined as the capacity to do work. There are many forms of energy, including: chemical, electrical, gravitational, mechanical, nuclear, radiant, and thermal energy. The official SI unit for energy is the joule (J); energy can also be measured in calories or British thermal units (Btu).[1][2][3] View on Wikipedia Wikipedia Definition In physics, energy is a conserved extensive property of a physical system, which cannot be observed directly but can be calculated from its state. Energy is of central importance in physics. It is impossible to give a comprehensive definition of energy because of the many forms it may take, but the most common definition is that it is the capacity of a system to perform work. The definition of work in physics is the movement of a force

490

Renewable Energy | Open Energy Information  

Open Energy Info (EERE)

Renewable Energy Renewable Energy Jump to: navigation, search This article is a stub. You can help OpenEI by expanding it. Renewable Energy is energy obtained from sources which are practically inexhaustible.[1] Prominent examples include solar energy, wind energy, and geothermal energy. The table below lists some of the conversion technologies that are used to harness the energy from these resources[2] . Renewable Resource Energy Conversion Technology Biomass, solid fuels Combustion (direct-fired, cofiring with coal); Gasification/Pyrolysis Biomass, gas and liquid fuels Fuel Cells Geothermal Dry steam electric; Flash electric; Binary cycle electric; Direct use; Geothermal heat pumps Solar Photovoltaics (PV); Concentrating solar thermal electric (parabolic trough, parabolic trough, power tower); Thermal water heating; Absorption chilling

491

Tuusso Energy | Open Energy Information  

Open Energy Info (EERE)

Tuusso Energy Tuusso Energy Jump to: navigation, search Name Tuusso Energy Place Seattle, Washington Zip 98122 Sector Solar Product Washington-based developer and operator of utility scale solar plants. References Tuusso Energy[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Tuusso Energy is a company located in Seattle, Washington . References ↑ "Tuusso Energy" Retrieved from "http://en.openei.org/w/index.php?title=Tuusso_Energy&oldid=380787" Categories: Clean Energy Organizations Companies Organizations Stubs What links here Related changes Special pages Printable version Permanent link Browse properties About us Disclaimers Energy blogs Linked Data Developer services

492

Minnesota Energy | Open Energy Information  

Open Energy Info (EERE)

Energy Energy Jump to: navigation, search Name Minnesota Energy Place Buffalo Lake, Minnesota Zip 55314 Product 21mmgy (79.5m litres/y) farmer-owned ethanol production cooperative. References Minnesota Energy[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Minnesota Energy is a company located in Buffalo Lake, Minnesota . References ↑ "Minnesota Energy" Retrieved from "http://en.openei.org/w/index.php?title=Minnesota_Energy&oldid=348849" Categories: Clean Energy Organizations Companies Organizations Stubs What links here Related changes Special pages Printable version Permanent link Browse properties About us Disclaimers Energy blogs Linked Data Developer services

493

Energy Enterprises | Open Energy Information  

Open Energy Info (EERE)

Energy Enterprises Energy Enterprises Place Mays Landing, New Jersey Zip 8330 Sector Solar Product Energy Enterprises is a licensed dealer, installer, and servicer of solar energy systems, serving residential and commercial customers primarily in southern New Jersey. References Energy Enterprises[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Energy Enterprises is a company located in Mays Landing, New Jersey . References ↑ "Energy Enterprises" Retrieved from "http://en.openei.org/w/index.php?title=Energy_Enterprises&oldid=344850" Categories: Clean Energy Organizations Companies Organizations Stubs What links here Related changes Special pages Printable version

494

Energy Sources | Department of Energy  

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

Energy Sources Energy Sources Energy Sources December 12, 2013 AEMC Summit Slideshow: Innovation in the Manufacturing Sector Learn how advanced technologies are helping manufacturers reduce waste, increase productivity and become leaders in the clean energy economy. October 16, 2013 West Penn Power SEF Commercial Loan Program The West Penn Power Sustainable Energy Fund (WPPSEF) promotes the use of renewable energy and clean energy among commercial, industrial, institutional and residential customers in the West Penn market region. Eligible technologies include solar, wind, low-impact hydro, and sustainable biomass such as closed-loop biomass and biomass gasification, as well as energy efficiency. October 16, 2013 UES - Renewable Energy Credit Purchase Program '''''Note: The Arizona Corporation Commission (ACC) is in the process of

495

Energy Blog | Department of Energy  

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

1, 2013 1, 2013 This Halloween, keep ghosts and goblins at bay -- while saving energy and money -- with these home energy efficiency tricks. | Infographic by Sarah Gerrity, Energy Department. Energy Efficiency Tricks to Stop Your Energy Bill from Haunting You This Halloween don't let your energy bill give you a scare. Check out tips on ways to save energy and money at home. October 21, 2013 Learn how combined heat and power could strengthen U.S. manufacturing competitiveness, lower energy consumption and reduce harmful emissions. | Infographic by Sarah Gerrity, Energy Department. Top 10 Things You Didn't Know About Combined Heat and Power Combined heat and power could help U.S. manufacturers save money, lower

496

Energy Blog | Department of Energy  

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

Energy.gov » Energy Blog Energy.gov » Energy Blog Energy Blog RSS June 29, 2011 Hybrid vehicles circle the track at Indianapolis Motor Speedway as part of the inaugural Clean Cities Stakeholder Summit The Clean Energy Race Assistant Secretary David Sandalow documents his experiences at the inaugural Clean Cities Stakeholder Summit at the Indianapolis Motor Speedway. June 29, 2011 Finding & Sharing Information about Energy Efficiency Know someone looking for efficiency tips? Now you can send them to our Stay Cool, Save Money campaign. June 29, 2011 Our Energy Independence - A Live Chat With Dr. Arun Majumdar Join Dr. Arun Majumdar at 2 PM ET for a live, two-way conversation about the investments we're making to build the clean energy infrastructure of the future. June 29, 2011 Los Alamos National Laboratory: Las Conchas Fire Update

497

Energy News | Department of Energy  

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

December 12, 2013 December 12, 2013 Department of Energy Releases $8 Billion Solicitation for Advanced Fossil Energy Projects The Energy Department published a solicitation today, making up to $8 billion in loan guarantee authority available to support innovative advanced fossil energy projects that avoid, reduce, or sequester greenhouse gases December 12, 2013 Energy Department Releases Grid Energy Storage Report Detailed Discussion of Benefits, Challenges, and Next Steps for Wider Adoption onto the Nation's Electric Grid December 12, 2013 Energy Department Announces $150 Million in Tax Credits to Invest in U.S. Clean Energy Manufacturing Domestic Manufacturing Projects to Support Renewable Energy Generation as well as Boost Building and Vehicle Efficiency December 11, 2013

498

Energy Sources | Department of Energy  

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

City of Bloomington - Sustainable Development Incentives City of Bloomington - Sustainable Development Incentives The City of Bloomington offers fee waivers and other design incentives for developers that incorporate the city's sustainability goals. The city's four goals include: October 16, 2013 Boulder County - EnergySmart Commercial Energy Efficiency Rebate Program (Colorado) EnergySmart offers a full suite of energy efficiency services. EnergySmart helps businesses (and homes) identify and implement energy improvements. The "One Stop Shop" aims to reduce the hassles and hurdles associated with improving the energy efficiency and comfort of a home or business by providing an expert Energy Advisor to each participant. The Advisor assists with scheduling an energy assessment, reviewing contractor bids, and

499

Energy News | Department of Energy  

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

02.8 Million in 02.8 Million in Weatherization Funding and Energy Efficiency Grants for Connecticut Part of nearly $8 billion in Recovery Act funding for energy efficiency efforts nationwide that will create 100,000 jobs and cut energy bills for families March 12, 2009 Obama-Biden Administration Announces Nearly $86 Million in Weatherization Funding and Energy Efficiency Grants for Puerto Rico Part of nearly $8 billion in Recovery Act funding for energy efficiency efforts nationwide that will create 100,000 jobs and cut energy bills for families March 12, 2009 Obama-Biden Administration Announces Nearly $177 Million in Weatherization Funding and Energy Efficiency Grants for Massachusetts Part of nearly $8 billion in Recovery Act funding for energy efficiency efforts nationwide that will create 100,000 jobs and cut energy bills for

500

Energy Blog | Department of Energy  

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

Energy.gov » Energy Blog Energy.gov » Energy Blog Energy Blog RSS September 27, 2010 Recovery Act is "Lighting Up" the Streets of Philadelphia The city is converting 58,000 traffic signals, which is just one of the city's energy efficiency targets. September 27, 2010 Are You Ready to Make a Difference? In the video below Secretary Chu reflects on how his high school physics teacher, Mr. Miner, aided his intellectual development and pushed him to embrace the learning process - lessons he's kept with him ever since. September 27, 2010 A worker synchronizes a traffic light on State Road A1A in St. Augustine, FL. | Energy Department Photo | Florida County Seeks to Reduce Emissions and Improve Traffic St. Johns County, Florida is tackling its traffic-timing problem with a little help from an Energy Department Energy Efficiency and Conservation