Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52739#.VKIJAcCAM4 Author(s) Alo Mikola , Teet-Andrus Kõiv Affiliation(s) Department of Environmental Engineering, Tallinn University of Technology, Tallinn, Estonia . ABSTRACT This paper is based on long term parameter measurements of the exhaust air heat pumps (EAHP) system in a new built apartment building. The building was equipped with an exhaust air ventilation system and exhaust air heat pump for ventilation heat recover. The results of the measurements show that the COP of the EAHP is mainly related to the temperature graph of the heating system and the supply temperature of domestic hot water (DWH). During the...
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