Pounds/force per square inch absolute.

An interior or exterior movable panel that operates on hinges or slides into place, used to protect windows or provide privacy.

The region between an n-layer and a p-layer in a single material, photovoltaic cell.

A chemical element, of atomic number 14, that is semi-metallic, and an excellent semiconductor material used in solar photovoltaic devices; commonly found in sand.

The quantity of heat that a cooling appliance is capable of removing from a room in one hour.

Thermal energy that is used in agricultural and industrial operations.

A commonly used analysis for reporting fuel properties; may be on a dry (moisture free) basis, as "fired", or on an ash and moisture free basis. Fractions usually reported include: volatile matter, fixed carbon, moisture, ash, and heating value (higher he ...

A construction element applied to the outermost surface of an exterior wall.

A general term applied to the energy that is converted to a form that can not be effectively used (lost) during the operation of an energy producing, conducting, or consuming system.

A coating applied to the surface of the glazing of a window to reduce heat transfer through the window.

A steady-state fermentation process.

A solar power station investigated by NASA that entailed a satellite in geosynchronous orbit that would consist of a very large array of solar photovoltaic modules that would convert solar generated electricity to microwaves and beam them to a fixed point ...

A type of insulation that is molded or expanded to produce coarse, closed cells containing air. The rigid cellular structure provides thermal and acoustical insulation, strength with low weight, and coverage with few heat loss paths. Often used to insulat ...

The difference between the brightness of an object compared to that of its immediate background.

That amount of cooling energy to be supplied (or heat and humidity removed) based on the sensible and latent loads.

A method of financial and economic analysis used to determine present and future values of investments or expenses.

The use of solar thermal energy or solar electricity to power a cooling appliance. There are five basic types of solar cooling technologies: absorption cooling, which can use solar thermal energy to vaporize the refrigerant; desiccant cooling, which can u ...

The amount of heat required to raise a unit mass of a substance through one degree, expressed as a ratio of the amount of heat required to raise an equal mass of water through the same range.

see Solar Spectrum above.

Usually refers to ethanol to 160 to 200 proof.