制冷学报2017，Vol.38Issue(5)：57-64,75,9.DOI:10.3969/j.issn.0253-4339.2017.05.057
CO2热泵热电池储能性能实验研究
Experimental Study on CO2 Heat Pump Thermal Battery System
摘要
Abstract
CO2 heat pump thermal battery system consists of a water-source transcritical carbon dioxide heat pump coupled with hot and cold thermal storage, and its performance gradually decreases during the process of thermal energy storage. This paper presents experimen-tal studies of a CO2 heat pump thermal battery system. The performance of this system was tested under a variable water-circulation volume flow rate for the hot/cold tank, a variable compressor frequency, and electronic expansion valve ( EEV) opening. The results show that a-doption of a lower water-circulation flow rate allows the tank to obtain good thermal stratification and a larger capacity. Further, a high compressor frequency benefits the system performance. The EEV opening also influences the system performance. The overall coefficient of performance (COP) reaches a maximum of 5. 49 when the compressor frequency is 50 Hz, the EEV opening is 330 pulse, and the hot and cold water volume flow rates are 0. 1 and 0. 2 m3/h, respectively. Moreover, through mathematical fitting, a correlation was estab-lished between the COP, the outlet temperatures of the hot and cold tanks, and the control parameter. Overall, the total COP is 6. 29 when the optimal control strategy based on the genetic algorithm is applied.关键词
CO2/热泵/储能/性能测试/遗传算法Key words
CO2/heat pump/thermal storage/performance test/genetic algorithm分类
化学化工引用本文复制引用
朱威全,刘方,蔡洋..CO2热泵热电池储能性能实验研究[J].制冷学报,2017,38(5):57-64,75,9.基金项目
本文受上海市自然科学基金(15ZR1417700) （15ZR1417700）
上海高校特聘教授(东方学者)岗位计划(2013-66) （东方学者）
上海市教育发展基金会和上海市教育委员会"曙光计划"(14SG50)项目资助.The project was supported by the Natural Science Foundation of Shanghai in China (No. 15ZR1417700), the Program for Profes-sor of Special Appointment ( Eastern Scholar ) supported by Shanghai Institutions of Higher Learning ( No. 2013-66 ) , and"Shuguang program" supported by Shanghai Education Develop-ment Foundation and Shanghai Municipal Education Commission in China (No. 14SG50). （14SG50）
