制冷技术2016，Vol.36Issue(5)：13-16,37,5.DOI:10.3969/j.issn.2095-4468.2016.05.104
横摇对水平管外制冷剂两相降膜流动换热特性的影响分析
Analysis of Influence of Rolling on Heat Transfer Characteristics of Two-phase Falling Film Flow of Refrigerant outside Horizontal Tubes
摘要
Abstract
To avoid the performance decrease of coil-wound heater exchanger under offshore conditions, the falling film evaporation process outside the tubes is simulated under different rolling conditions, and the influence of rolling angle and frequency on heat transfer characteristics is analyzed. The results show that, the heat transfer coefficient is decreased by 27% when the rolling angle is 9° and the vapor quality is 0.05; the heat transfer characteristic is slightly enhanced when the rolling frequency is low;it is more sensitive for the rolling influence when vapor quality is 0.2, and the heat transfer coefficient is decreased by 11%when the rolling angle is 3°.关键词
管外/两相流/降膜/数值模拟/横摇Key words
Outside tubes/Two-phase flow/Falling film/Numerical model/Rolling引用本文复制引用
李剑锐,陈杰,浦晖,李恩道,丁国良,胡海涛,庄大伟..横摇对水平管外制冷剂两相降膜流动换热特性的影响分析[J].制冷技术,2016,36(5):13-16,37,5.基金项目
国家高技术研究发展计划资助（No.2013AA09A216）。 （）
