城市污水用作燃气热泵热源和热汇的经济分析

Economic Analysis on Municipal Sewage as Heat-source and Heat-sink for Gas Heat Pump

基于燃气热泵制冷、制热的工艺原理,提出了城市污水作为燃气热泵热源和热汇的工艺流程。在终端产品成本优化条件下,建立了不同热源与热汇燃气热泵的经济分析模型。分别以城市污水、空气、地下水为燃气热泵的热源和热汇,对其经济性进行了模拟计算和比较。结果表明,城市污水可作为燃气热泵的制冷热汇和制热热源,其制冷和制热费用与地下水源(汇)的相当,低于空气源(汇)燃气热泵。

The process of gas engine-driven heat pump （GEHP） using municipal sewage as heat source and heat sink was presented based on the process principle of beating and cooling by GEHP. Un- der optimization of terminal product cost, the economic analysis model of GEHP with different heat sources and heat sinks was constructed. The economy of GEHP using munieipal sewage, air and under- ground water as heat sources and heat sinks is analogously calculated and compared. The results show that municipal sewage can be used as heat source and heat sink of GEHP, and the cost of GEHP using municipal sewage is equal to that of GEHP using underground water, but less than that of GEHP using air.