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以烟气中余热和水的回收为目标,构建第二类开式吸收式热泵。采用流程模拟的方法对系统的性能和可用能利用情况进行分析。结果显示典型工况下系统性能系数为0.64,不低于同类闭式循环吸收式热泵系统。参数分析表明烟气温度湿度、冷却水温度流量及工质流量的增大均会使系统性能系数(COP)上升。系统的总火用效率为27.11%,火用损主要集中在吸收器、再生器和冷凝器;冷凝器可用能输出为零,仅用于回收冷凝水;系统火用效率的提高需通过减小吸收器及再生器的火用损来实现。
To waste heat in flue gas and water recovery as the goal, to build a second type of open absorption heat pump. The method of process simulation is used to analyze the system performance and available energy utilization. The results show that under typical conditions, the system performance coefficient of 0.64, not less than similar closed-cycle absorption heat pump system. The parameter analysis shows that the system performance coefficient (COP) increases with the flue gas temperature and humidity, the cooling water temperature and the working fluid flow increasing. The total exergy efficiency of the system is 27.11%. The exergy loss mainly concentrates on the absorber, regenerator and condenser. The output of the condenser is zero and can only be used for the recovery of condensate. The efficiency of the system exergy needs to be reduced by reducing Absorber and regenerator of the loss of fire to achieve.