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U.S. Department of Energy
Branche: Government
Number of terms: 22108
Number of blossaries: 0
Company Profile:
A total life cycle cost divided into equal amounts.
Industry:Energy
A toilet that uses less water than a standard one during flushing, for the purpose of conserving water resources.
Industry:Energy
A thin, reflective foil sheet that exhibits low radiant energy transmission and under certain conditions can block radiant heat transfer; installed in attics to reduce heat flow through a roof assembly into the living space.
Industry:Energy
A thin sheet of semiconductor (photovoltaic material) made by cutting it from a single crystal or ingot.
Industry:Energy
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A thin sheet of material (metal) of a heat exchanger that conducts heat to a fluid.
Industry:Energy
A thin coating of a material applied to a photovoltaic cell surface that reduces the light reflection and increases light transmission.
Industry:Energy
A thermostat that can be set to automatically lower temperatures in an unoccupied house and raise them again before the occupant returns.
Industry:Energy
A thermodynamic property of a substance, defined as the sum of its internal energy plus the pressure of the substance times its volume, divided by the mechanical equivalent of heat. The total heat content of air; the sum of the enthalpies of dry air and water vapor, per unit weight of dry air; measured in Btu per pound (or calories per kilogram).
Industry:Energy
A thermodynamic cycle using constant pressure, heat addition and rejection, representing the idealized behavior of the working fluid in a gas turbine type heat engine.
Industry:Energy
A thermal storage wall is a south-facing wall that is glazed on the outside. Solar heat strikes the glazing and is absorbed into the wall, which conducts the heat into the room over time. The walls are at least 8 in thick. Generally, the thicker the wall, the less the indoor temperature fluctuates.
Industry:Energy