Supported by National Natural Science Foundation of China (No. 50578048);"Heating, Gas, Ventilation and Air Conditioning" Key Laboratory Open Subject in Beijing (No. KF200710);the Postdoctoral Researcher Science Foundation of China (No. 20090450986)
Sewage source heat pump unit operates under partial load most of the time, and study on the law of coefficient of performance (COP) of the unit varying with load ratio can provide basis for the heat pump units running...
Sponsored by the National Natural Science Foundation of China(Grant No. 50578048)
To investigate the formation of fouling in sewage heat exchangers, a model of thermal resistance with time is developed based on the experiments in a practical engineering site. And this model is asymptotic exponentia...