钟振兴;朱冬生;刘清明;张景卫;
ZHONG Zhen-xing,ZHU Dong-sheng,LIU Qing-ming,ZHANG Jing-wei(Key laboratory of Enhanced Heat Transfer and Energy Conservation,Ministry of Education,School of Chemistry and Chemical Engineering,South China Uniersity of Technology,Guangzhou 510640,China)

• 1:华南理工大学传热强化与过程节能教育部重点实验室

摘要(Abstract)：

搭建了板式蒸发式冷凝器传热性能试验平台,对影响板式蒸发式冷凝器传热性能的主要因素———喷淋水流量、风速、汽液流向以及工艺流体进出口位置进行试验研究。结果表明:空气与水并流时传热效果最好、逆流次之、错流最差;板内冷凝压力随冷却循环水喷淋密度、风速的增大而减小;在各自最佳风速,不同汽液流向操作下,蒸汽对角进出时的热流密度均比蒸汽同侧进出时大。
Plate-type condenser experimental platform of heat transfer performance is built,major factors affecting heat transfer characteristics of the plate-type evaporative condenser are studied,such as spray water flow,velocity of wind,import and export position of process fluid.The results showed that: co-current flow of air and water with the best heat transfer result,followed by counter-current flow and cross-flow.Condensing pressure in condenser decreases with the increasing of the circulating cooling water and velocity of wind.Upon the best velocity of wind and different vapor-liquid flow operation,the heat flux when the steam flow opposite side of the corner is greater than it when on the same side.

关键词(KeyWords)： 板式蒸发式冷凝器;薄膜;传热;试验研究
plate-type evaporative condenser;thin liquid film;heat transfer;experiment study

Abstract:

Keywords:

基金项目(Foundation): 国家“863”高技术研究发展专题课题(2007AA05Z200);; 广东省科技厅广州市科技局联动项目(2007A04020004);; 广州市科科技计划项目2007C13G0041

作者(Authors): 钟振兴;朱冬生;刘清明;张景卫;
ZHONG Zhen-xing,ZHU Dong-sheng,LIU Qing-ming,ZHANG Jing-wei(Key laboratory of Enhanced Heat Transfer and Energy Conservation,Ministry of Education,School of Chemistry and Chemical Engineering,South China Uniersity of Technology,Guangzhou 510640,China)

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