Performance analysis of combined cooling heating and power (CCHP) exhaust waste heat coupled air source heat pump system
CCHP, air source heat pump, exhaust waste heat, primary energy utilization efficiency
To achieve the deep recovery of exhaust waste heat, a combined cooling heating and power (CCHP) dynamic exhaust low temperature waste heat coupled air source heat pump system is proposed in this paper. Aspen Plus software was used to simulate the system and analyze the effects of the recyclable waste heat of the system, the coefficient of performance (COP) of the heat pump and the impact of the primary energy utilization rate. The results showed that under the design condition, the exhaust waste heat of CCHP system was 1.22 kW, the recyclable waste heat of heat pump system was up to 1.07 kW, the exhaust waste heat recovery rate was 87.7%. The COP was up to 4.66, increased 39.5%. The primary energy utilization efficiency was increased by 3.9%. It solves the problem of heat pump evaporator frosting and poor performance of low temperature in cold regions. This study provides an important reference for the combined and efficient application of CCHP systems and heat pump units.
Tsinghua University Press
Wenpeng Hong, Jing Hao, Jiayu Wang et al. Performance analysis of combined cooling heating and power (CCHP) exhaust waste heat coupled air source heat pump system. Build Simul, 2019, 12(4): 563–571.