Energy efficiency

Energy efficiency

Industry: Energy

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Energy efficiency

Refuse-derived fuel (RDF)

Energy; Energy efficiency

A solid fuel produced by shredding municipal solid waste (MSW). Noncombustible materials such as glass and metals are generally removed prior to making RDF. The residual material is sold as-is or ...

Active solar heater

Energy; Energy efficiency

A solar water or space-heating system that use pumps or fans to circulate the fluid (water or heat-transfer fluid like diluted antifreeze) from the solar collectors to a storage tank subsystem.

Passive solar heater

Energy; Energy efficiency

A solar water or space-heating system in which solar energy is collected, and/or moved by natural convection without using pumps or fans. Passive systems are typically integral collector/storage ...

In reference to wind energy, for any given instant, the power available in the wind is proportional to the cube of the wind velocity; when wind speed doubles, the power availability increases eight ...

Standard conditions

Energy; Energy efficiency

In refrigeration, an evaporating temperature of 5 degrees Fahrenheit (F), a condensing temperature of 86 degrees F., liquid temperature before expansion of 77 degrees F., and suction temperature of ...

Air collector

Energy; Energy efficiency

In solar heating systems, a type of solar collector in which air is heated in the collector.

Surface water loop

Energy; Energy efficiency

In this type of closed-loop geothermal heat pump installation, the fluid-filled plastic heat exchanger pipes are coiled into circles and submerged at least eight feet below the surface of a body of ...