heat-pumps
121HSPF — (Heating Seasonal Performance Factor) is a term used in the heating and cooling industry. HSPF is specifically used to measure the efficiency of heat pumps. The efficiency of air conditioners are often rated by the Heating Seasonal Performance… …
122Lev Bulat — Lev Petrovich Bulat (Russian: Лев Петрович Булат), a Russian physicist and engineer, was born April 11, 1947, Chernovtsy, Ukraine. In 1988 he received a D.Sc in Physics and Mathematics, from Leningrad Polytechnical Institute, with the thesis:… …
123Mining in New Zealand — began when the indigenous Māori quarried rock such as argillite in times prior to European colonisation.[1] Mining by Europeans began in the latter half of the 19th century. New Zealand has abundant resources of coal, silver, iron ore, limestone… …
124Atlanta metropolitan area — Metro Atlanta redirects here. For the transit agency, see Metropolitan Atlanta Rapid Transit Authority. Metro Atlanta Atlanta Sandy Springs Marietta, Georgia MSA   CSA   …
125Geothermal Energy — Energy produced by the internal heat of the earth; geothermal heat sources include: hydrothermal convective systems; pressurized water reservoirs; hot dry rocks; manual gradients; and magma. Geothermal energy can be used directly for heating or …
126Refrigerant — The compound (working fluid) used in air conditioners, heat pumps, and refrigerators to transfer heat into or out of an interior space. This fluid boils at a very low temperature enabling it to evaporate and absorb heat. *** A fluid such as …
127Groundwater — Shipot, a common source of drinking water in a Ukrainian village. Groundwater is water located beneath the ground surface in soil pore spaces and in the fractures of rock formations. A unit of rock or an unconsolidated deposit is called an… …
128List of effects — This is a list of names for observable phenonema that contain the word effect, amplified by reference(s) to their respective fields of study. #*3D audio effect (audio effects)A*Accelerator effect (economics) *Accordion effect (physics) (waves)… …
