Study of Heat Transfer During Condensation of Vapor Mixture on Shell-side of Rod-baffle Condenser

思勤; 刘昌俊; 黄鸿鼎

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Study of Heat Transfer During Condensation of Vapor Mixture on Shell-side of Rod-baffle Condenser

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- Study of Heat Transfer During Condensation of Vapor Mixture on Shell-side of Rod-baffle Condenser
- CIESC Journal Issue 4, (1990)
- 作者机构：
  
  天津大学化工系,天津大学化工系,天津大学化工系 ,天津,天津,天津
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 August 1990，
  
  Published：25 August 1990
- 稿件说明：
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思勤, 刘昌俊, 黄鸿鼎. Study of Heat Transfer During Condensation of Vapor Mixture on Shell-side of Rod-baffle Condenser[J]. CIESC Journal, 1990, (4).
DOI：

思勤, 刘昌俊, 黄鸿鼎. Study of Heat Transfer During Condensation of Vapor Mixture on Shell-side of Rod-baffle Condenser[J]. CIESC Journal, 1990, (4). DOI：

摘要

折流杆冷凝器是一种新型的管壳式换热器.本文针对折流杆冷凝器的结构特点

提出了折流杆冷凝器壳侧混合蒸气冷凝传热的计算方法

并通过实验加以验证.实验用折流杆冷凝器有两台:一是圆型结构

含折流圈9个、换热管37根

管尺寸φ19×2mm; 另一是矩形结构

含折流圈10个、换热管14根

管尺寸φ25×2.5mm

壳体前侧板设有五块直径为100mm的视镜

以观察冷凝流型.实验用工作介质为乙醇-水、溶剂汽油和溶剂汽油-氮气.在重力控制区和过渡区

实验所得传热系数值与理论计算值的偏差均小于32%.

Abstract

The rod-baffle condenser is a new type of shell-and-tube heat exchanger. In the present paper

a method for calculating heat transfer coefficient of the shell-side condensation of vapor mixture is proposed according to the structural characteristics of the rod-baffle condenser and experimental verification is given. The rod-baffle condenser can be classified into circular and rectangular types. The circular one consists of 9 rod-baffle rounds and 37 tubes φ19×2 mm in size. The rectangular one consists of 10 rod-baffle rounds and 14 tubes φ25×2.5mm in size. In the front of the shell there are 5 glass windows for observing flow pattern during condensation. The working media in the experiment are ethanol-water

gasoline and gasoline-nitrogen systems. In the gravity-controlled region and transition region

the differences between calculated values and theoretical values are less than 32%.

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