空调换热器长效性能衰减的研究进展
A Review of Researches on Long-term Performance Degradation of Heat Exchangers in Air Conditioners

空调换热器长期使用后性能会衰减，导致整机制冷和制热能力出现不同程度的下降。分别从粉尘污垢、表面腐蚀、间歇运行及微生物污染四个方面分析了国内外空调换热器长效性能衰减的研究现状，指出了目前针对这些因素的研究中存在的问题，提出了今后空调换热器长效性能的研究及应用方向。
The long-term performance of heat exchangers in air conditioners degrades gradually as the increase of operation duration, which leads to the decline of cooling and heating capacity of air conditioner system. This paper is devoted to present the research status on long-term performance of heat exchangers in air conditioners, and focuses on factors such as dust deposition, corrosion, intermittent operation condition and bio-fouling. Research problems and direction of long-term performance of heat exchangers in air conditioners are pointed out