HOW SMALL COULD A SMALL HEAT PUMP BE ? THE RELATION BETWEEN BUILDING AND HEAT PUMP PERFORMANCE
The first and foremost duty of a heat pump is energy efficient heating of buildings with highest possible COP. However, heat pump and building are interacting and the simple call for good COP does not apply.Modern residential and commercial buildings must be equipped with a ventilation system to maintain at least an acceptable indoor air quality in air tight low-energy houses. A simple energy balance tells that heat pumps with a high COP need an excellently insulated building and badly insulated buildings need a heat pump with a low COP. This may seem somehow paradox but is a fact of the interference between the building energy demand and the heat pump.The findings of this case study are generally applicable and form some kind of First Law for Heat Pumps, which reads in short: Before considering a heat pump, first insulate the building very well!. Simple thermodynamic evidence calls for this undertaking.
J.Paul C.Riisager S.A.Arnarson
DTU - Technical University of Denmark Department of Mechanical Engineering (MEK) Nils Koppels Allé 402, 2800 Lyngby, Denmark
国际会议
The 22nd International Congress of Refrigeration(第22届国际制冷大会)
北京
英文
2007-08-21（万方平台首次上网日期，不代表论文的发表时间）