10 Terms
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Energy efficiency
Industry: Energy
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Energy efficiency
Illuminance
Energy; Energy efficiency
A measure of the amount of light incident on a surface; measured in foot-candles or Lux.
Capacitance
Energy; Energy efficiency
A measure of the electrical charge of a capacitor consisting of two plates separated by an insulating material.
Thermal efficiency
Energy; Energy efficiency
A measure of the efficiency of converting a fuel to energy and useful work; useful work and energy output divided by higher heating value of input fuel times 100 (for percent).
Appliance efficiency ratings
Energy; Energy efficiency
A measure of the efficiency of an appliance's energy efficiency.
Lumens/watt (LPW)
Energy; Energy efficiency
A measure of the efficacy (efficiency) of lamps. It indicates the amount of light (lumens) emitted by the lamp for each unit of electrical power (Watts) used.
Humidity
Energy; Energy efficiency
A measure of the moisture content of air; may be expressed as absolute, mixing ratio, saturation deficit, relative, or specific.
Building heat-loss factor
Energy; Energy efficiency
A measure of the heating requirements of a building expressed in Btu per degree-day.
