新型混合制冷剂R161+R227ea的理论与实验研究

Theoretical and experimental study on a novel mixture refrigerant of R161+R227ea

提出以循环性能优越的R161为基础组分,并引入阻燃性能优越的R227ea,根据优势互补的原则,将R161和R227ea进行优化配比,获得一种循环性能与安全性能均较好的混合制冷剂以替代R22.利用数据库REFPROP7.0,通过自编软件对二元混合制冷剂R161+R227ea的热力学性能和循环性能进行理论计算及分析,并在电量热器制冷剂性能测试台上,分别对工质R407C和R161+R227ea进行了实验研究.通过理论与实验的研究发现,该新型制冷剂的制冷量和耗功都比R407C稍小,但是循环性能系数(COP)比较接近,而排气温度比R407C低5℃左右,因此该新型混合制冷剂具有替代R407C、R22的潜在可行性.

R161 with excellent cycle performance was employed as the main component and R227ea was introduced as an antiflaming component. A new refrigerant with good cycle performance and safety performance was found to replace the traditional refrigerant R22 by optimizing the composition of R161 and R227ea based on the principle of complementary advantages. A program combined with REFPROP 7.0 was wrote to calculate the thermodynamic property and cycle performance. The cycle performances of R161＋R227ea and R407C were conducted on the electric calorimeter apparatus. The theoretical and experimental analysis show that the refrigerating capacity and power consumption of the new refrigerant is lower than R407C, while the coefficient of performance （COP） is equal to R407C and the discharge temperature is about 5 ℃ lower than R407C. The novel mixture refrigerant has the potential to replace R407C and R22.