NR 435 Chapter 12

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  1. active solar system
    Mechanical systems that use moving substances to collect and transfer solar energy.
  2. calorie
    Amount of energy it takes to boil one gram of water.
  3. chain reaction
    A self-sustaining reaction in which the fission of nuclei produces subatomic particles that cause the fission of other nuclei.
  4. cogeneration
    The simultaneos production of electricity and steam or hot water in the same plant.
  5. control rods
    Neutron-absorbing material inserted into spaces between fuel assemblies in nuclear reactors to regulate fission reactions.
  6. energy
    The capacity to do work, such as moving matter over distance.
  7. fossil fuels
    Petroleum, natural gas and coal created by geologic forces from organic wastes and dead bodies of formerly living organisms.
  8. fuel assembly
    A bundle of hollow metal rods containing uranium oxide pellets, used to fuel a nuclear reactor.
  9. gasohol
    A mixture of gasoline and ethanol.
  10. fuel cells
    Mechanical devices that use hydrogen-containing fuels, such as methane, to produce an electric current.
  11. green pricing
    Plans in which consumers can volntarily pay a premium price for renewable energy.
  12. joule
    A unit of energy. The energy expended in one second by a current of one amp flowing throgh a resistance of one ohm.
  13. nuclear fission
    The radioactive decay process in which isotopes split apart to create two smaller atoms.
  14. oil shales
    Fine-grained sedimentary rock rich in solid organic material called kerogen liqefies to produce a fluid petroleum fuel.
  15. passive heat absorbtion
    The use of natural materials or absorbtive structures withot moving parts to gather and hold; the simplest and oldest use of solar energy.
  16. photovoltaic cells
    An energy-conversion device that captures solar energy and directly converts it to electrical current.
  17. power
    The rate of energy delivery; measured in horsepower or watts.
  18. proven-in-place reserves
    Energy sources that have been thoroghly mapped and are likely to be economically recoverable with available technology.
  19. reformer
    A device that strips hydrogen from fuels such as natural gas, methanol, ammonia, gasoline or vegetable oil so they can be used for power plants.
  20. tar sands
    Geologic deposits composed of sand shale particles coated with bitumen, a viscous mixture of long-chain hydrocarbons.
  21. wind farms
    Large numbers of windmills concentrated in a single area; usually owned by a utility or large scale energy producer.
  22. work
    The application of force throgh a distance; requires energy input.
Card Set
NR 435 Chapter 12
UNH renewable energy vocab
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