- 産業: Government
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A measure of the probability that a system demand will exceed capacity during a given period; often expressed as the estimated number of days over a long period, frequently 10 years or the life of the system.
Industry:Energy
A measure of the percent of moisture actually in the air compared with what would be in it if it were fully saturated at that temperature. When the air is fully saturated, its relative humidity is 100 percent.
Industry:Energy
A measure of the number of cycles or wavelengths of electrical energy per second; U.S. electricity supply has a standard frequency of 60 hertz.
Industry:Energy
A measure of the moisture content of air; may be expressed as absolute, mixing ratio, saturation deficit, relative, or specific.
Industry:Energy
A measure of the heating requirements of a building expressed in Btu per degree-day.
Industry:Energy
A measure of the electrical charge of a capacitor consisting of two plates separated by an insulating material.
Industry:Energy
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).
Industry:Energy
A measure of the efficiency of an appliance's energy efficiency.
Industry:Energy
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.
Industry:Energy
