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涂层表面上湿热空气对流冷凝传热的实验研究

兰忠 房正 张崇峰 白涛 马学虎

中国电机工程学报2011,Vol.31Issue(11):51-56,6.
中国电机工程学报2011,Vol.31Issue(11):51-56,6.

涂层表面上湿热空气对流冷凝传热的实验研究

Experimental Investigation on Coating Surface on the Convection-condensation Heat Transfer of Hot Humidity Air

兰忠 1房正 1张崇峰 1白涛 1马学虎1

作者信息

  • 1. 大连理工大学化学工程研究所,辽宁省,大连市,116012
  • 折叠

摘要

Abstract

A modified surface of heat pipe was prepared with n-octadecyl mercaptan self-assembled monolayers (SAMs). In order to investigate the characteristics of convection-condensation heat transfer of the heat pipe heat exchanger and heat transfer enhancement after modification, vapor-air mixture generated by a boiler was used to simulate the flue gas experimentally. The experiment focused on factors that may affect the performance of the convection-condensation heat transfer and the efficiency of heat transfer enhancement in the presence of SAMs. The experiment was conducted under the condition of temperature ranged from 70 "C to 120 °C and of vapor volume fraction ranged from 0 to 20%. The results are shown below: the vapor volume fraction, the mass flow rate and the inlet temperature of the vapor-air mixture are the main factors that influence the performance of the convection-condensation heat transfer; the surface of heat pipe modified with SAMs has a great effect on the enhancement of heat transfer.

关键词

热管换热器/加湿热空气/对流冷凝传热/分子自组装膜

分类

能源科技

引用本文复制引用

兰忠,房正,张崇峰,白涛,马学虎..涂层表面上湿热空气对流冷凝传热的实验研究[J].中国电机工程学报,2011,31(11):51-56,6.

基金项目

中央高校基本科研业务费专项基金. ()

中国电机工程学报

OA北大核心CSCDCSTPCD

0258-8013

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