A STUDY ON THE FINS OF HEAT EXCHANGERS FROM OPTIMIZATION OF ENTROPY GENERATION

苏亚欣; 骆仲泱; 岑可法

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A STUDY ON THE FINS OF HEAT EXCHANGERS FROM OPTIMIZATION OF ENTROPY GENERATION

更新时间：2025-12-16

- A STUDY ON THE FINS OF HEAT EXCHANGERS FROM OPTIMIZATION OF ENTROPY GENERATION
- CIESC Journal Issue 1, (1999)
- 作者机构：
  
  浙江大学热能工程研究所!杭州310027,浙江大学热能工程研究所!杭州310027,浙江大学热能工程研究所,杭州,310027
- 作者简介：
- 基金信息：
- DOI：
  CLC： K172
- Online First：25 February 1999，
  
  Published：25 February 1999
- 稿件说明：
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苏亚欣, 骆仲泱, 岑可法. A STUDY ON THE FINS OF HEAT EXCHANGERS FROM OPTIMIZATION OF ENTROPY GENERATION[J]. CIESC Journal, 1999, (1).
DOI：

苏亚欣, 骆仲泱, 岑可法. A STUDY ON THE FINS OF HEAT EXCHANGERS FROM OPTIMIZATION OF ENTROPY GENERATION[J]. CIESC Journal, 1999, (1). DOI：

摘要

肋片作为一种非常高效的强化传热技术

不仅是作为二次传热面

扩大传热面积

并促进流体介质扰动来强化换热

同时其增加的传热面积也会造成相对增加的流动阻力.关于肋片强化传热与增大流阻的综合评判准则在文献[1]中已有论述

Abstract

The purpose of this paper is to find a new way of fin design to minimize the irreversibilities due to heat transfer and fluid friction and maximize the available work of the working fluid. The general entropy generation formulas for fins are derived at first according to the first and second law of thermodynamics

then a theoretical analysis on cylindrical pin fins and rectangular straight fins is made by using the above formulas. The minimum entropy generation formulas for these two types of fins are obtained and a principle for fin optimization is proposed

where the minimum entropy generation is chosen to be the objective function to be studied. The effect of different parameters on fin entropy generation is discussed in detail in forced convection heat transfer.

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