MIXED PHASE COMPRESSION HIGH EFFICIENCY HEAT PUMP

heat pump;Mechanical Engineering

Chan, WenYen

University of Waterloo

关键词: heat pump;    Mechanical Engineering;   

Others  :  https://uwspace.uwaterloo.ca/bitstream/10012/8292/5/Chan_WenYen.pdf

瑞士|英语

来源: UWSPACE Waterloo Institutional Repository

【 摘 要 】

The objective of this thesis is the design and realization of a higher efficiency air source heat pump. The improved pump’s operating cost must rival the cost of heating with natural gas, while incurring a minimal increase in the capital cost of the pump. A COP greater than 4 at –15C ambient is needed to achieve this goal. During winter season testing a COP of 4.25 +/- 0.11 was observed. This tracks well with a predicted COP of 4.4 and also against a commercial system with a claimed COP between 2.1 and 3.0.