17 Terms
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Energy efficiency
Industry: Energy
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Energy efficiency
Absolute humidity
Energy; Energy efficiency
The ratio of the mass of water vapour to the volume occupied by a mixture of water vapour and dry air.
Demand factor
Energy; Energy efficiency
The ratio of the maximum demand on an electricity generating and distribution system to the total connected load on the system; usually expressed as a percentage.
Second law efficiency
Energy; Energy efficiency
The ratio of the minimum amount of work or energy required to perform a task to the amount actually used.
Condensing unit capacity
Energy; Energy efficiency
The refrigerating effect in Btu/h produced by the difference in total enthalpy between a refrigerant liquid leaving the unit and the total enthalpy of the refrigerant vapour entering it. Generally ...
Homojunction
Energy; Energy efficiency
The region between an n-layer and a p-layer in a single material, photovoltaic cell.
Lattice
Energy; Energy efficiency
The regular periodic arrangement of atoms or molecules in a crystal of semiconductor material.
Building orientation
Energy; Energy efficiency
The relationship of a building to true south, as specified by the direction of its longest axis.
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