In order to build an efficient and energy-saving CO2 heat pump system and to improve the heat transfer efficiency of the gas cooler, a novel honeycomb gas cooler with a compact structure, high heat transfer efficiency, and high pressure-bearing capacity was proposed in our previous work. To clarify the components in the system that need further optimization and to improve its performance, an exergy analysis of a transcritical CO2 air-source heat pump system with the novel honeycomb gas cooler is studied in this paper. Based on the second law of thermodynamics, the exergy model of each component in the heat pump system is established, and the irreversible loss of each component is analyzed. In addition, the degree of energy loss of the honeycomb gas cooler is clarified, and the possibility and direction of system optimization are pointed out. The results show that the exergy efficiency of the system is 35.33% under nominal operating conditions, and there is a lot of room for improvement
the mayor of liverpool says she and many other people across the city are bewildered by the decision of unesco, the un s cultural body, to strip liverpool of its status as a world heritage site. liverpool was awarded the title in 2004, recognising its rich heritage as a major trading centre and port, and its architectural landmarks. but the world heritage committee says that developments on the city s waterfront have resulted in irreversible loss . our correspondent colin paterson spent the day there. liverpool, a city with ambitions to build and regenerate, ambitions which have led to it being stripped of its unesco world heritage status after a secret ballot. the site of liverpool, maritime mercantile city, is deleted. the title brought prestige and helped attract international tourism. liverpool was chosen because of its history as a trading
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