R290家用空调制热特性研究  

Experimental Research on the Heating Capacity of R290 Household Heat Pump

作　　者：刘振 赖想球 周向阳 李廷勋[2] 

机构地区：[1]广东美的制冷设备有限公司,广东佛山528311 [2]中山大学,广东广州510725

出　　处：《流体机械》2013年第3期82-84,共3页Fluid Machinery

基　　金：广东省自然科学基金项目(10151027501000095)

摘　　要：出于安全的考虑,R290应用于家用空调,充注量会受到限制,由此对制热量产生了不利的影响。本文以直流变频热泵空调为测试样机充注R290制冷剂,通过调整换热器的翅片宽度和内螺纹铜管管径大小,研究制热量的变化。研究发现改变换热器的翅片宽度影响较小,但将蒸发器的内螺纹铜管的管径从7mm减小到5mm,制热量可提升约3%。The charged mass is strictly controlled for flammable refrigerant like R - 290, which would affect the performance of the RAC especially for heating capacity. An R - 290 DC inverter heat pump was tested with different heat exchanger fin widths and tube diameters. It is found that the fin width has little influence, however, the heat capacity increases about 3 percent if the evaporator diameter is changed from 7mm to 5mm.

关 键 词：R290 家用热泵空调 制热量 提升 

分 类 号：TH138[机械工程—机械制造及自动化] TK121[动力工程及工程热物理—工程热物理]