A Heat Energy Assessment Method of the Plant Secondary Effluent as Cold and Heat Sources for Heat Pump

The sewage plant secondary effluent is full of low cold and heat energy, drawing cold and heat energy by direct sewage source heat pump and using it can provide heating in winter and cooling in summer. This paper introduced technical solutions of the direct sewage source heat pump system, besides, it gave the evaluating method of sewage effluent cold and heat energy ¨C the hourly analysis method, taking a sewage plant in Qingdao as an example and comparing it with the common engineering assessment method, the results show that this method has more engineering practicability.