Heat Transfer Characteristics of Dropwise Condensation of Steam on Vertical Polymer Coated Plates

作     者：马学虎 陈嘉宾 徐敦颀 林纪方 

作者机构：大连理工大学 辽宁 大连 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2001年第9卷第1期

页      面：17-21页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：the National Natural Science Foundation of China (No. 59906002) and the Foundation for Young Teachers of Dalian University of Technology 

主　　题：dropwise condensation heat transfer polymer film temperature fluctuation 

摘      要：The plasma polymerization method and dynamic ion-beam mixed implantation method were employed to coat ultra-thin polymer films on copper plates. Experiments indicated that steady dropwise condensation of steam at atmospheric pressure occurred. The condensation heat transfer coefficients increased by approximately 3 and 5－7 times for the polytrimethylvinylsilane film and polytetrafluoroethylene film respectively, compared with the value for film condensation under the same experimental conditions. The temperatures on the condensing surface and inside the test block were found to be rapidly and randomly fluctuated. The properties of the coated films and advantages of the methods used in this investigation were discussed briefly.