Experimental performance analysis of a direct-expansion solar-assisted heat pump water heater with R134a in summer

2018 ◽  
Vol 91 ◽  
pp. 12-19 ◽  
Author(s):  
Xiangqiang Kong ◽  
Penglong Sun ◽  
Shandong Dong ◽  
Kailin Jiang ◽  
Ying Li
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