incoming air
81Solar chimney — This article refers to a device for ventilation. For the power generation technology, see Solar updraft tower. A solar chimney often referred to as a thermal chimney is a way of improving the natural ventilation of buildings by using convection… …
82Solar energy — is the light and radiant heat from the Sun that powers Earth s climate and weather and sustains life. Since ancient times it has been harnessed for human use through a range of technologies. Solar radiation along with secondary solar resources… …
83Heat exchanger — An interchangeable plate heat exchanger Tubular heat exchan …
84Electrostatic precipitator — An electrostatic precipitator (ESP), or electrostatic air cleaner is a particulate collection device that removes particles from a flowing gas (such as air) using the force of an induced electrostatic charge. Electrostatic precipitators are… …
85Appropriate technology — (AT) is technology that is designed with special consideration to the environmental, ethical, cultural, social and economical aspects of the community it is intended for. With these goals in mind, AT typically requires fewer resources, is easier… …
86Top Fuel — Racing is a class of drag racing in which the cars are run on a maximum of 90% nitromethane and about 10% methanol (also known as racing alcohol), instead of gasoline. The cars are purpose built race cars, with a layout superficially resembling… …
87cement — cementable, adj. cementer, n. cementless, adj. /si ment /, n. 1. any of various calcined mixtures of clay and limestone, usually mixed with water and sand, gravel, etc., to form concrete, that are used as a building material. 2. any of various… …
88Waldsee (camp) — Waldsee, Lake of the Woods, is the German immersion program offered by Concordia Language Villages. Located near Bemidji, Minnesota, Waldsee is also the site of North America s first certified passive house, which uses 85% less energy than a… …
89Swimming pool sanitation — articleissues refimprove = January 2008 technical = August 2008Swimming pool sanitation refers to both visual clarity and levels of microflora, such as bacteria and viruses in swimming pools. The goal of sanitation is to prevent the spread of… …
90turbojet — /terr boh jet /, n. 1. See turbojet engine. 2. an airplane equipped with one or more turbojet engines. [1940 45; TURBO + JET1] * * * Jet engine in which a turbine driven compressor draws in and compresses air, forcing it into a combustion chamber …
