摘要
换热器表面结霜是制冷和低温设备中最常见的问题之一,它会严重影响换热器的换热效率,降低制冷系统的整体性能。用自行研制的一种新型抑霜涂料制成亲水表面,将其涂敷于换热器翅片上,厚度为0.05mm。在相同的实验条件下与没有涂层的换热器实验结果进行比较,发现有涂层的换热器能够大大延长融霜周期,在整个实验过程中没有出现结霜现象。涂层厚度对换热器出口的温度和换热器的传热性能没有明显影响。另外,还针对有涂层的翅片进行了一系列的吸水试验,测试涂层质量、厚度以及表面粗糙度随浸水时间的变化。
In this study, a new anti-frosting hydrophilic surface coating was developed and was sprayed upon the heat exchanger fins with the coating thickness of about 0.05mm. Compared with a uncoated heat exchanger, it extended the frost melting cycle greatly and there was no frost deposition during the test under the same conditions. In addition, experiments on absorbing water performance of coated fins were conducted and the changes of coating weight and thickness, and surface roughness with soaking water time were tested.
出处
《制冷学报》
CAS
CSCD
北大核心
2008年第6期1-4,14,共5页
Journal of Refrigeration
基金
国家自然科学基金资助项目(50376001)
北京市自然科学基金项目(3073014)
北京市拔尖创新人才选拔计划项目(20061D0501500186)
北京市科技计划项目资助~~
关键词
热工学
亲水表面
实验研究
结霜
Pyrology
Hydrophilic surface
Experimental research
Frost
