摘要
用计算机模拟空气源热泵风侧换热器在不同环境温度和相对湿度条件下运行的热力特性。计算出换热器肋片管表面温度后 ,根据水的相图判别肋片管上湿空气的干工况、凝露和结霜三种状态。模拟结果表明 ,环境温度 5℃左右 ,相对湿度高于 67% ,风侧换热器肋片管易结霜 ;环境温度越低 ,则越不容易结霜。
Simulates the thermodynamic characteristic of the air side heat exchanger of an air source heat pump under different air temperature and relative humidity. According to the phase diagram of water, distinguishes dry operating condition, condensation and frosting of moist air on the fin of heat exchanger after working out the surface temperature of the fin tubes. Simulating results show that the fin tubes will be prone to frosting when ambient temperature is about 5 ℃ and humidity is higher than 67%? The lower the ambient temperature is, the more difficult frosting is to occure.
出处
《暖通空调》
北大核心
2002年第6期95-97,共3页
Heating Ventilating & Air Conditioning
关键词
空气源
热泵
换热器
湿空气状态
计算机模拟
heat pump, heat exchanger, moist air state, computer simulation
