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U.S. Department of Energy
Industry: Government
Number of terms: 22108
Number of blossaries: 0
Company Profile:
The average time a minority carrier exists before recombination.
Industry:Energy
The capability of doing work; different forms of energy can be converted to other forms, but the total amount of energy remains the same.
Industry:Energy
The central heating or cooling system contains a fan that gets its air supply through these ducts, which ideally should be installed in every room of the house. The air from a room will move towards the lower pressure of the return duct.
Industry:Energy
The change in direction of a ray of light when it passes through one media to another with differing optical densities.
Industry:Energy
The change in heat content that occurs with a change in phase and without change in temperature.
Industry:Energy
The change in the power available in the wind due to changes in the wind speed or velocity profile; the windpower profile is proportional to the cube of the wind speed profile.
Industry:Energy
The chemical element commonly used as the dopant in solar photovoltaic device or cell material.
Industry:Energy
The combining of rooms in a structure according to similar heating and cooling patterns. Zoning requires using more than one thermostat to control heating, cooling, and ventilation equipment.
Industry:Energy
The complete cycle of stages (evaporation and condensation) of refrigeration or of the refrigerant.
Industry:Energy
The complex process by which organic matter is decomposed by anaerobic bacteria. The decomposition process produces a gaseous byproduct often called "biogas" primarily composed of methane, carbon dioxide, and hydrogen sulfide.
Industry:Energy