Category Scope
44 Energy Production and Conversion
Includes specific energy conversion systems, e.g., fuel
cells; and solar, geothermal, windpower, and waterwave conversion systems;
energy storage; and traditional power generators. For technologies related
to nuclear energy production see 73 Nuclear
Physics. For related information see also 07 Aircraft
Propulsion and Power; 20 Spacecraft
Propulsion and Power; and 28 Propellants
and Fuels.
Definition
Energy Production – The production of electricity,
combustible fuels, nuclear and thermonuclear fuels, and heating and cooling
by renewable resources.
Energy Conversion – The change of a working
substance or natural power into a more useable form of energy such as
electricity or mechanical motion. NASA Thesaurus, Washington,
DC: National Aeronautics and Space Administration.
NASA Interest
Exhaustive Interest : Techniques, equipment,
and systems that may provide power or fuel for aircraft, space vehicles,
launch vehicles, satellites, orbital stations, extraterrestrial bases.
Selective Interest : Earth based energy production
and conversion, energy for transportation, and new developments in energy
technology (new sources, high efficiency units, etc.); lightweight, low
cost power units with potential for aerospace application.
Negative Interest : Solar, wind, nuclear and
hydroelectric power plants for routine commercial applications; coal
energy conversion.
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Input
Subjects of Specific Interest
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alternative energy sources
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Brayton cycle turbines (applications)
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chemical energy conversion devices
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electric batteries (applications)
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electric energy conversion devices
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energy management technology
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energy production
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energy storage
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fuel cells
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generators (applications)
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geophysical energy conversion devices
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hybrid energy conversion devices
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magnetohydrodynamic (MHD) energy conversion device
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microwave energy conversion devices
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microwave energy transmission
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photovoltaic energy conversion devices
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silicon cells (applications)
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solar cells (energy conversion)
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solar generators
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solar heating (space applications)
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solar power (space applications)
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thermionic energy conversion devices
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thermoelectricity
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windpower
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