R407C替代房间空调器中R22的试验研究

Tentative study on R407C as R22 alternative in the room air conditioner

介绍了房间空调器采用三元非共沸混合制冷剂Ｒ４０７Ｃ替代Ｒ２２的试验研究结果．试验中对制冷剂充灌量、毛细管长度以及冷凝器与蒸发器的结构型式作了变动．初步试验结果表明：在冷凝器与蒸发器均加以改造后的房间空调器中采用Ｒ４０７Ｃ比原机采用Ｒ２２时，制冷量增加１．７％，能效比降低１．５％．

Experimental studies are carried out with R407C, a kind of ternary non azerotropic alternative refrigerant for R22, in a room air conditioner. During the tests, the refrigerant charge size, length of capillary tubes and structure of condenser and evaporator are changed. Preliminary results indicate that cooling capacity with the mixture is 1.7 % higher, energy efficiency ratio 1.5 % lower in the modified equipment than those with R22.