R290与常见热泵热水器工质的循环特性分析  

作　　者：王华亮 史帆 白国建 袁明征 

机构地区：[1]珠海格力电器股份有限公司,广东珠海519070

出　　处：《科技创新与应用》2025年第8期95-99,共5页Technology Innovation and Application

摘　　要：该文列举R290与R32、R410A、R134a家用热泵热水器常用工质的基础物性参数,基于单级蒸汽压缩热力学循环模型,在35~70℃不同冷凝温度条件下对4种工质的循环特性进行热力学分析。结果表明,在相同条件下R290的排气温度、排气压力以及压缩比较低,且对冷凝温度变化的敏感度较小,具备较优的排气特性;R290在制热量方面没有较多的优势,为达到与R32和R410A系统相同的制热能力水平,R290系统需要更大的压缩机排量,但其具备更优循环COP,在降低系统能耗方面更有潜力。This paper lists the basic physical parameters of commonly used working fluids of R290,R32,R410A,and R134a household heat pump water heater.Based on a single-stage vapor compression thermodynamic cycle model,the cycle characteristics of the four working fluids are analyzed under different condensation temperatures of 35 to 70℃.The results show that under the same conditions,R290 has low exhaust temperature,exhaust pressure and compression ratio,and is less sensitive to changes in condensation temperature,and has better exhaust characteristics;The R290 does not have many advantages in terms of heating capacity.In order to achieve the same heating capacity level as the R32 and R410A systems,the R290 system requires a larger compressor displacement,but it has better cycle COP and reduces system energy consumption.More potential.

关 键 词：R290工质 家用热泵热水器 热泵循环特性 热力学分析 制热能力 

分 类 号：TB612[一般工业技术—制冷工程]