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This and subsequent designs allow him to devise a precise method of controlling humidity using refrigerated water sprays, thereby allowing the manufacture of air-conditioning systems to be standardized.īoston Floating Hospital becomes the first air-conditioned hospital, using a system designed by Edward Williams to maintain the hospital wards at about 70☏ with a relative humidity of 50 percent. Carrier has studied the science of humidity control after designing a rudimentary air-conditioning system for a Brooklyn printing plant in 1902. Willis Carrier files for a patent on his "dew point control" system. Patent filed for "dew point control" system The system uses safe, nonflammable carbon dioxide as a refrigerant. In Buffalo, Frank Lloyd Wright’s Larkin Administration Building is the first office building specifically designed for air conditioning. The system uses 35,000 cubic feet of air per minute to cool a 1,000- seat auditorium, the rotunda, and various other rooms.įirst office building specifically designed for air conditioning. Thousands of attendees at the World's Fair also experience the public debut of air conditioning in the Missouri State Building. The ammonia refrigerating system is mounted on the side of a wooden icebox-type refrigerator.
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Louis World's Fair by Brunswick Refrigerating Co., which specializes in designing small refrigerators for residences and butcher shops. Louis World's FairĪ self-contained mechanical refrigerator is displayed at the St. Each room is individually controlled with a thermostat that operates dampers in the ductwork, making it also the first office building to incorporate individual "zone" control of separate rooms.Ī self-contained mechanical refrigerator is displayed at the St.
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The Armour Building in Kansas City, Missouri, becomes the first office building to install an air-conditioning system.
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Using free cooling provided by waste-steam-operated refrigeration systems, Wolff’s system functions successfully for 20 years.įirst office building with an air-conditioning system installed Since then comfort of cool is no longer considered a luxury but a fact of modern existence.Ĭomfort cooling system installed at the New York Stock ExchangeĪ 300-ton comfort cooling system designed by Alfred Wolff is installed at the New York Stock Exchange. Indeed, a North Carolina textile engineer named Stuart Cramer, impressed with how the latest system of controlling the heat and humidity in his plant improved the cloth fibers, coined the term "air conditioning" in 1906. The modern system-involving the exchange of hot, moist air for cool, dry air by way of a circulating refrigerant-was first used in industrial settings. Even Leonardo da Vinci designed and built a mechanical ventilating fan, the first of its kind. People tried everything from draping saturated mats in doorways to the installation of water-powered fans. Keeping cool has been a human preoccupation for millennia, but until the 20th century most efforts were ineffective. Air Conditioning and Refrigeration Timeline