Title:	Utilization of heat pumps in building heating system
Authors:	Kvakovský, Milan Dedinská, Lýdia Čačková, Vieroslava
Citation:	Proceedings of the Intensive Programme 2009. 1st ed. Pilsen: University of West Bohemia. Faculty of electrical engineering. Department of electrical power engineering and environmental engineering, 2009, s. 1-6. ISBN 978-80-7043-800-8.
Issue Date:	2009
Publisher:	University of West Bohemia. Faculty of electrical engineering. Department of electrical power engineering and environmental engineering
Document type:	konferenční příspěvek conferenceObject
URI:	http://home.zcu.cz/~tesarova/IP/Proceedings/Proc_2009/index.htm http://hdl.handle.net/11025/22581
ISBN:	978-80-7043-800-8
Abstract in different language:	The heat pump was imagined by Lord Kelvin in 1852 and developed by Peter Ritter von Rittinger in 1855. After experimenting with a freezer, Robert C. Webber built the first direct exchange groundsource heat pump in the late 1940s. [11] The first successful commercial project was installed in the Commonwealth Building (Portland, Oregon) in 1946, and has been designated a National Historic Mechanical Engineering Landmark by ASME.[1] The technology became popular in Sweden in the 1970's, and has been growing slowly in worldwide acceptance since then. Open loop systems dominated the market until the development of polybutylene pipe in 1979 made closed loop systems economically viable.[1] As of 2004, there are over a million units installed worldwide providing 12 GW of thermal capacity.[2] Each year, about 80,000 units are installed in the USA and 27,000 in Sweden.[2]
Rights:	© University of West Bohemia
Appears in Collections:	Proceedings of the intensive programme 2009 Proceedings of the intensive programme 2009

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