摘要：作者：涂中強; 張蕾; 邱俊潔 關鍵詞：暖通空調論文,制冷性能,制冷劑 【摘要】 對R290和R22的熱力學性質進行了比較分析。在標準空調工況Ⅱ下,對它們的理論制冷循環性能進行了對比;并在KFR-35GW/R(35540)-N5型分體式熱泵型掛壁式房間空調器上進行R290替代R22的實驗。實驗結果表明:在不對空調器作任何改動的情況下,在恰當充液量下,R290的制冷量與R22幾乎相等,且能效比有所增加。 【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. 【關鍵詞】 制冷性能; 制冷劑; 空調器; 比較分析; 替代實驗【Key words】 Refrigeration Proformance; Refrigerant; Air-condition; omparing analysis; Displacement experiment