R452B应用于空调(热泵)机组的性能研究  

Study on performance of R452B applied in air-conditioning(heat pump)unit

作　　者：昝世超 周俊海 孙云 吴俊峰 黄磊 Zan Shichao;Zhou Junhai;Sun Yun;Wu Junfeng;Huang Lei(Hefei General Machinery Research Institute,Hefei 230031,China)

机构地区：[1]合肥通用机械研究院有限公司,合肥230031

出　　处：《低温与超导》2022年第1期70-75,共6页Cryogenics and Superconductivity

基　　金：生态环境部对外合作与交流中心项目(C/III/S/18/228)资助。

摘　　要：对比分析了R452B、R32和R410A应用于空调(热泵)机组理论循环特性,并对R452B在空调(热泵)机组中直接替代R410A的性能进行了试验研究,测试了空调(热泵)机组在不同工况条件下的制冷/热量、功率、性能系数以及压缩机的排气温度等参数。结果表明:相较于使用R410A而言,机组使用R452B的制冷/热能力、功率略有下降,制冷能效提高在5%以内,压缩机的排气温度提高约1℃,压比有所降低。当R452B的充注量达到R410A的85%时,机组性能达到最佳。总体来讲,R452B与R410A的运行性能相近。R452B比R410A具有更低的GWP值,符合行业的制冷剂替代趋势,可以在空调(热泵)机组中作为R410A的直接替代制冷剂。The theoretical characteristics of R452 B,R32 A and R410 A were compared and analyzed.The experimental performance of the air-conditioning(heat pump)unit with R452 B replacing R410 A was studied.The parameters of refrigerating/heat capacity,power,performance coefficient and compressor discharge temperature of air-conditioning(heat pump)unit in different working conditions were tested.The results show that compared with R410 A unit,the refrigerating/heat capacity and power of R452 B unit decrease slightly.The refrigeration efficiency is improved within 5%.The compressor discharge temperature is increased by about 1℃.The pressure ratio is reduced.When the refrigerant charge of R452 B reaches 85%of R410 A,the unit presents an optimum performance.In general,R452 B and R410 A have similar operating performance.R452 B has a lower GWP value than R410 A,which is in accord with the development trend of refrigerant substitution in the refrigeration industry.R452 B can directly replace R410 A in air-conditioning(heat pump)units.

关 键 词：空调(热泵)机组 R452B 性能 替代制冷剂 

分 类 号：TB657.1[一般工业技术—制冷工程]