air-cycle air conditioning
81United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …
82Refrigerant — A refrigerant is a compound used in a heat cycle that undergoes a phase change from a gas to a liquid and back. The two main uses of refrigerants are refrigerators/freezers and air conditioners ( cf. coolant). The use of refrigerant has been… …
83Callaway Cars — Infobox Company company name = Callaway Cars Incorporated company vector logo = company type = Public genre = foundation = 1977 founder = Reeves Callaway location city = Old Lyme, Connecticut location country = United States location = origins =… …
84Programmable thermostat — Lux Products Model TX900TS Touch Screen Thermostat …
85Restoration of the Sistine Chapel frescoes — The restoration of the frescoes of the Sistine Chapel was one of the most significant art restorations of the 20th century. The Sistine Chapel was built by Pope Sixtus IV within the Vatican immediately to the north of St. Peter s Basilica and… …
86Ozone depletion — Image of the largest Antarctic ozone hole ever recorded (September 2006) Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about 4% per decade in the total volume of ozone in Earth s… …
87Hydronics — is the name for the use of water as the heat transfer medium in heating and cooling systems. Some of the oldest and most common examples are steam and hot water radiators. In large scale commercial buildings such as high rise and campus… …
88Flugzeugklimaanlage — schematische Darstellung der Klimaanlage einer Boeing 737 300 Eine Klimaanlage in Flugzeugen (engl. environmental control system, ECS, deutsch auch Umweltkontrollsystem) umfasst die drei Systemkomponenten Luftaustausch, Druck , sowie… …
89Klimaanlage im Flugzeug — schematische Darstellung der Klimaanlage einer Boeing 737 300 Eine Klimaanlage in Flugzeugen (engl. environmental control system, ECS, deutsch auch Umweltkontrollsystem) umfasst die drei Systemkomponenten Luftaustausch, Druck , sowie… …
90Packs — schematische Darstellung der Klimaanlage einer Boeing 737 300 Eine Klimaanlage in Flugzeugen (engl. environmental control system, ECS, deutsch auch Umweltkontrollsystem) umfasst die drei Systemkomponenten Luftaustausch, Druck , sowie… …
