分体式空调器直接充注R290实验测试与分析

摘要

A comparative experiment of two air conditioners charged with R290 respectively for cooling is explored at actual working conditions. The internal and external parameters of the air conditioners were measured. The influence of indoor and outdoor temperature on the operating parameters and operating characteristics of R290 was analyzed. Through the economic analysis, the ini⁃tial cost and running cost of two air conditioners charged with R290 respectively were compared. The results show that the air condi⁃tioner charged with R290 can work correctly. And compared with the original air conditioner, the air supply parameters, cooling ca⁃pacity and EER (energy efficiency ratio) of the R290 air conditioner are close to the original air conditioner, or even better than the original. Under the premise of ensuring the safety, the air conditioner directly charging with R290 has excellent benefits of energy saving and environmental protection.%将R290直接充注至家用分体式空调器后，对比测试了空调器在实际工况下连续运行的内外参数，分析了室内外温度变化对R290空调器运行参数和运行特性的影响。通过经济性分析，比较了空调器充注R290后的初期成本和运行费用。结果表明，直接充注R290的空调器可以正常运行，与原空调器相比，R290空调器的送风参数、制冷量、能效比等均接近或优于原空调器。在保证安全性的前提下，直接替换充注R290具有良好的节能和环保效益。