Experimental evaluation of system modifications to increase R1234ze(E) cooling capacity

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• 作者：Adri&aacute ; n Mota-Babiloni^a ; ^b ; ^{admoba@upv.es} ; Joaqu&iacute ; n Navarro-Esbr&iacute ; ^b ; Juan Manuel Mendoza-Miranda^c ; Bernardo Peris^b
• 关键词：Variable speed compressor ; Internal heat exchanger (IHX) ; R1234ze(E) ; R134a ; Low GWP ; Cooling capacity
• 刊名：Applied Thermal Engineering
• 出版年：2017
• 出版时间：25 January 2017
• 年：2017
• 卷：111
• 期：Complete
• 页码：786-792
• 全文大小：1062 K
• 卷排序：111

文摘

We present an cooling capacity (Q̇o) comparison of R1234ze(E) and R134a. R1234ze(E) Q̇o is impaired by lower vapor density and latent heat. The test bench is equipped with a bypassed IHX and a frequency inverter. The drop-in Q̇o of R1234ze(E) is more than 22% lower than that of R134a. R1234ze(E) matches R134a Q̇o at 43% higher compressor rotation speed and using an IHX.