The use of heat pumps for the heating and cooling of the Commonwealth Building, initiated in 1948, was a pioneering achievement in the western hemisphere. The theoretical conception of the heat pump was described in a neglected book, published in 1824 and written by a young French army officer, Sadi Carnot. Its practical application on a large scale is attributable to designers J. Donald Kroeker and Ray C. Chewning, building engineer Charles E. Graham, and architect Pietro Belluschi.
Society: ASMEMain Category: MechanicalSub Category: Environmental ControlEra: 1940-1949DateCreated: 1948Commonwealth BuildingPortlandState: ORCountry: USAWebsite: http://www.asme.org/about-asme/history/landmarks/topics-a-l/environmental-control/-46-commonwealth-building-heat-pump-%281948%29Creator: Graham, Charles , Belluschi, Pietro
YearAdded:Image Credit: 1940s postcard featuring the new Commonwealth (Equitable) Building in Portland, OR.Era_date_from: 1948