| 摘要: |
| 近年来，新型制冷剂R290、R32逐渐应用于家用房间空调器。本文采用同一房间空调器系统（基于R32特性设计），分别对比R290、R32、R22、R410A在不同环境温度下的性能，重点测试并评估了4种制冷剂在极限高温工况下（室外环境温度分别为35、46、52、55 ℃）的性能衰减特性。结果表明：R22在高温工况下表现最优，R290与R22基本相当，R32高温表现最差；R22与R32在55 ℃时能力衰减相差3.01%，EER衰减率相差6.03%；R32排气温度与系统压力最高，不适用于高温地区空调的应用。 |
| 关键词: 房间空调器 高温特性 新型制冷剂 衰减 |
| DOI： |
| 投稿时间：2017-01-05
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| 基金项目: |
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| Experimental Research on Performance of Room Air Conditioner with Alternative Refrigerants at High Ambient Temperature |
| Liu Zhen,Hu Maojuan,Li Tingxun |
| (School of Engineering, Sun Yat-sen University;GD Midea Air-conditioning Equipment Co., Ltd.) |
| Abstract: |
| Alternative refrigerants such as R290 and R32 are gradually being applied to room air conditioners (RACs). This study tested the performances of R290, R22, R410A, and R32 in the same system. The capacity and efficiency reduction values at high ambient temperatures for R290, R32, R410A, and R22 were measured. The ambient temperatures were 35, 46, 52, and 55 ℃, respectively. The experimental results showed that R22 had the best performance under the high ambient temperature condition, while R32 had the worst. R290 was very similar to R22. The capacity decrease between R22 and R32 was 3.01%, and the decrease in the energy efficient ratio was 6.03%. Moreover, R32 had the highest discharge temperature and system pressure and was not suitable for an RAC in a high ambient temperature area. |
| Key words: room air conditioner high ambient temperature performance alternative refrigerants decrement |
