【摘要】 对R290和R22的热力学性质进行了比较分析。在标准空调工况Ⅱ下,对它们的理论制冷循环性能进行了对比;并在KFR-35GW/R(35540)-N5型分体式热泵型挂壁式房间空调器上进行R290替代R22的实验。实验结果表明:在不对空调器作任何改动的情况下,在恰当充液量下,R290的制冷量与R22几乎相等,且能效比有所增加。更多还原

【Abstract】 The paper compare and analysis thermodynamic property between R290 and R22.based on standard refrigeration conditionⅡ,it also contrasts their refrigeratiaon circle proformangce.The expeiment of R290 displacing R22 is done in the air-conditioner types KFR-35GW/R(35540)-N5.The result indicate that:if it has the approprate filling refrigerant volume,in the unimproved system,comparing with R22;R290’s refrigerating capacity is almost equal,R290’s refrigerating cop is increased.更多还原