R454B风冷式冷水(热泵)机组性能研究  

Performance of R454B air cooled water chiller(heat pump)unit

作　　者：何亚峰 梅奎 张伟 乔雅静 孙仲杰 陈亮 刘梅 He Yafeng;Mei Kui;Zhang Wei;Qiao Yajing;Sun Zhongjie;Chen Liang;Liu Mei(Hefei General Machinery Research Institute Co.,Ltd.;Nanjing TICA Climate Solutions Co.,Ltd.)

机构地区：[1]合肥通用机械研究院有限公司 [2]南京天加环境科技有限公司

出　　处：《制冷与空调》2022年第10期79-81,共3页Refrigeration and Air-Conditioning

摘　　要：对R454B制冷剂应用于风冷式冷水(热泵)机组循环特性进行试验研究,结果表明:R454B系统实测名义制冷/热量与R410A系统相当,实测名义制冷/热COP分别提高5.2%和3.7%;R454B系统的工作压力较R410A系统低,R454B系统的吸气压力过低保护值、压缩机排气温度过高保护值可以与R410A系统设计为一致;直接在R410A系统上使用R454B时,可以降低21%的充注量。Experimental research on the cycle characteristics of R454 B air cooled water chiller(heat pump)unit is carried out.The results show that the nominal capacity of cooling and heating of R454 B system is comparable to that of R410 A system,the nominal cooling COP and heating COP obtained by test increase by 5.2% and 3.7% respectively.The working pressure for R454 B system is lower than R410 A system,the protection value of low suction pressure and excessive discharge temperature are the same as R410 A system.The charge amount of R454 B can be reduced by 21%,when it is applied to R410 A system.

关 键 词：冷水(热泵)机组 风冷式 制冷剂 性能系数 

分 类 号：TB6[一般工业技术—制冷工程]