Effect of Condenser Fouling on Performance of Vapor Compression Refrigeration System

Table 6

Comparison of results for R1234yf and R1234ze with R134a at °C.

Refrigerant	Change in (%)	Change in (%)	Change in COP (%)	Change in (%)
R1234yf	10	0.74	−1.85	−1.12
	50	9.12	−17.55	−10.06
R1234ze	10	0.87	−1.59	−0.73
	50	7.41	−13.88	−7.50
R134a	10	0.79	−1.56	−0.77
	50	7.38	−13.91	−7.56