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  • 1
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    A feasibility assessment of nuclear reactor power system concepts for the NASA Growth Space Station (1986)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: A preliminary feasibility assessment of the integration of reactor power system concepts with a projected growth Space Station architecture was conducted to address a variety of installation, operational, disposition and safety issues. A previous NASA sponsored study, which showed the advantages of Space Station - attached concepts, served as the basis for this study. A study methodology was defined and implemented to assess compatible combinations of reactor power installation concepts, disposal destinations, and propulsion methods. Three installation concepts that met a set of integration criteria were characterized from a configuration and operational viewpoint, with end-of-life disposal mass identified. Disposal destinations that met current aerospace nuclear safety criteria were identified and characterized from an operational and energy requirements viewpoint, with delta-V energy requirement as a key parameter. Chemical propulsion methods that met current and near-term application criteria were identified and payload mass and delta-V capabilities were characterized. These capabilities were matched against concept disposal mass and destination delta-V requirements to provide a feasibility of each combination.
    Keywords: SPACECRAFT PROPULSION AND POWER
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Coal gasifier cogeneration powerplant project (1980)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: Industrial cogeneration and utility pr systems were analyzed and a conceptual design study was conducted to evaluate the economic feasibility of a coal gasifier power plant for NASA Lewis Research Center. Site location, plant size, and electric power demand were considered in criteria developed for screening and selecting candidates that could use a wide variety of coals, including that from Ohio. A fluidized bed gasifier concept was chosen as the baseline design and key components of the powerplant were technically assessed. No barriers to environmental acceptability are foreseen. If funded, the powerplant will not only meet the needs of the research center, but will reduce the commercial risk for utilities and industries by fully verifying and demonstrating the technology, thus accelerating commercialization.
    Keywords: PROPELLANTS AND FUELS
    Type: Impact for the 80's: Proc. of a Conf. on Selected Technol. for Business and Ind.; p 123-131
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    NASA TECHNICAL REPORTS
  • 3
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    Historical perspectives - The role of the NASA Lewis Research Center in the national space nuclear power programs (1991)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: The history of the NASA Lewis Research Center's role in space nuclear power programs is reviewed. Lewis has provided leadership in research, development, and the advancement of space power and propulsion systems. Lewis' pioneering efforts in nuclear reactor technology, shielding, high temperature materials, fluid dynamics, heat transfer, mechanical and direct energy conversion, high-energy propellants, electric propulsion and high performance rocket fuels and nozzles have led to significant technical and management roles in many natural space nuclear power and propulsion programs.
    Keywords: GENERAL
    Type: AIAA PAPER 91-3462
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Conceptual design study of a coal gasification combined-cycle powerplant for industrial cogeneration (1981)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A conceptual design study was conducted to assess technical feasibility, environmental characteristics, and economics of coal gasification. The feasibility of a coal gasification combined cycle cogeneration powerplant was examined in response to energy needs and to national policy aimed at decreasing dependence on oil and natural gas. The powerplant provides the steam heating and baseload electrical requirements while serving as a prototype for industrial cogeneration and a modular building block for utility applications. The following topics are discussed: (1) screening of candidate gasification, sulfur removal and power conversion components; (2) definition of a reference system; (3) quantification of plant emissions and waste streams; (4) estimates of capital and operating costs; and (5) a procurement and construction schedule. It is concluded that the proposed powerplant is technically feasible and environmentally superior.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-TM-81687 , E-723
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    NASA TECHNICAL REPORTS
  • 5
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    Technical and economic feasibility study of solar/fossil hybrid power systems (1977)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Results show that new hybrid systems utilizing fossil fuel augmentation of solar energy can provide significant capital and energy cost benefits when compared with solar thermal systems requiring thermal storage. These benefits accrue from a reduction of solar collection area that results from both the use of highly efficient gas and combined cycle energy conversion subsystems and elimination of the requirement for long-term energy storage subsystems. Technical feasibility and fuel savings benefits of solar hybrid retrofit to existing fossil-fired, gas and vapor cycle powerplants was confirmed; however, economic viability of steam cycle retrofit was found to be dependent on the thermodynamic and operational characteristics of the existing powerplant.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-TM-73820 , E-9409
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    In-situ laser retorting of oil shale (1977)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Oil shale formations are retorted in situ and gaseous hydrocarbon products are recovered by drilling two or more wells into an oil shale formation underneath the surface of the ground. A high energy laser beam is directed into the well and fractures the region of the shale formation. A compressed gas is forced into the well that supports combustion in the flame front ignited by the laser beam, thereby retorting the oil shale. Gaseous hydrocarbon products which permeate through the fractured region are recovered from one of the wells that were not exposed to the laser system.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
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    NASA TECHNICAL REPORTS
  • 7
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    Calculation of fast-neutron flux emerging from a reactor beamhole and comparison with experiment (1967)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Comparison of calculated and measured fast-neutron fluxes emerging from HB-6 beamhole of Plum Brook reactor
    Keywords: NUCLEAR ENGINEERING
    Type: NASA-TM-X-1418
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 8
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    Evaluation of the COHORT 2 Monte Carlo shielding code - Gamma ray transport using source direction biasing (1969)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Gamma ray transport portion of COHORT 2 Monte Carlo shielding code
    Keywords: NUCLEAR ENGINEERING
    Type: NASA-TM-X-1877
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 9
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    Benefits of solar/fossil hybrid gas turbine systems (1978)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The potential benefits of solar/fossil hybrid gas turbine power systems were assessed. Both retrofit and new systems were considered from the aspects of; cost of electricity, fuel conservation, operational mode, technology requirements, and fuels flexibility. Hybrid retrofit (repowering) of existing combustion (simple Brayton cycle) turbines can provide near-term fuel savings and solar experience, while new and advanced recuperated or combined cycle systems may be an attractive fuel saving and economically competitive vehicle to transition from today's gas and oil-fired powerplants to other more abundant fuels.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-TM-79083 , E-9905 , Gas Turbine Conf. and Solar Energy Conf.; Mar 12, 1979 - Mar 15, 1979; San Diego, CA; United States
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    NASA TECHNICAL REPORTS
  • 10
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    The NASA-Lewis/ERDA Solar Heating and Cooling Technology Program (1975)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The NASA Lewis Research Center plans to carry out a major role in the ERDA Solar Heating and Cooling Program. This role would be to create and test the enabling technology for future solar heating, cooling, and combined heating/cooling systems. The major objectives of the project are to achieve reduction in solar energy system costs, while maintaining adequate performance, reliability, life, and maintenance characteristics. The project approach is to move progressively through component, subsystem, and then system technology advancement phases in parallel with continuing manufacturing cost assessment studies. This approach will be accomplished principally by contract with industry to develop advanced components and subsystems. This advanced hardware will be tested to establish 'technology readiness' both under controlled laboratory conditions and under real sun conditions.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: International Solar Energy Society and American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Workshop on the Use of Solar Energy for the Cooling of Buildings; Aug 04, 1975 - Aug 06, 1975; Los Angeles, CA
    Format: text
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    NASA TECHNICAL REPORTS
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