蒸汽——不凝性气体物系水平管外自然对流膜状凝结换热的研究  

STUDY ON NATURAL CONVECTION LAMINAR FILM CONDENSATION OF FREON VAPOR-AIR MIXTURE ON A HORIZONTAL TUBE

作　　者：魏保太 刘晔[1] 魏杰[1] 

机构地区：[1]天津大学

出　　处：《工程热物理学报》1990年第4期413-417,共5页Journal of Engineering Thermophysics

摘　　要：本文作者提出了蒸汽-不凝性气体物系水平管外逆向发展的自然对流膜状凝结换热模型。以R113-空气为例,导出了气膜、液膜特性与换热规律性,同时利用天津大学凝结换热实验台,对理论解析结果进行了多种浓度工况的模拟实验验证。The studies of laminar natural convection film condensation progress of Freon vapor in the presence of air were made on a horizontal tube. A physical model was presented and numerical solution was obtained by means of an integration technique. Also the simulated experiment was performed to verify the proposed model, and variation laws of calculated values are shown to agree with those of experimental values within the limits of common concentration of air.

关 键 词：蒸汽 气体 换热 水平 管 对流 

分 类 号：TK121[动力工程及工程热物理—工程热物理]