Selection of structure parameters for H-finned tube

ZHAO Bin; ZHAO Lijie; WANG Qinggong; CHAO Junnan; Lü Junfu

doi:10.11949/j.issn.0438-1157.20150588

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Selection of structure parameters for H-finned tube

更新时间：2025-12-10

- Selection of structure parameters for H-finned tube
- CIESC Journal Issue 12, Pages: 4751-4757(2015)
- 作者机构：
  
  1. 华北理工大学冶金与能源学院,河北,唐山,063009
  2. 清华大学热能工程系,北京,100084
  3. 煤炭科学技术研究院有限公司,北京,100013
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150588
  CLC： K124
- Online First：05 December 2015，
  
  Published：05 December 2015
- 稿件说明：
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ZHAO Bin, ZHAO Lijie, WANG Qinggong, et al. Selection of structure parameters for H-finned tube[J]. CIESC Journal, 2015, (12): 4751-4757.
DOI：

ZHAO Bin, ZHAO Lijie, WANG Qinggong, et al. Selection of structure parameters for H-finned tube[J]. CIESC Journal, 2015, (12): 4751-4757. DOI： 10.11949/j.issn.0438-1157.20150588.

摘要

提出了单位质量鳍片管换热量与引风单位耗功所回收热量两个评价H型鳍片管性能的主要指标

给出了H型鳍片管结构参数选取的方法。通过对不同鳍片宽度与鳍片间距的H型鳍片管进行数值研究发现

单位质量鳍片管换热量随鳍片宽度的增加先增加后降低

并且在不同鳍片间距下

该指标达到最大值时所对应的鳍片宽度均在55～60 mm;引风单位耗功所回收热量随鳍片宽度的变化也呈现出先增加后降低的趋势

但在不同鳍片间距下

该指标达到最大值时所对应的鳍片宽度逐渐增加。当两个指标达到最大值时

所对应的鳍片间距均为最小值

因此

在选取鳍片管结构参数时

应根据单位质量鳍片管换热量与引风单位耗功所回收热量两个指标并兼顾制造工艺与热量回收区域的积灰状况进行选取。

Abstract

Two indicators were proposed to evaluate the performance of H-type finned tube

i.e. the heat exchange per unit mass and the recovered heat transfer per unit power of the fan

and a selection method was derived to determine the structure parameters for the H-type finned tube. Numerical studies were performed to investigate the H-type finned tube with different fin widths and pitches. The results show that with the increase of fin width

the heat transfer per unit mass of finned tube increases first and then deceases

and when this indicator reaches the maximum value with different fin pitches

the fin width is between 55 and 60 mm. With the increase of fin width

the recovered heat transfer per unit power of the fan also increases first and then deceases

but when this indicator reaches the maximum value with different fin pitches

the fin width increases gradually. The fin pitch has the minimum value when both indicators reach the maximum value

so the two indicators as well as the manufacturing process and fouling characteristics should be taken into consideration for selecting the structure parameters.

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