Influences of inclination angle and heating power on heat transfer performance of ethane pulsating heat pipe

CHEN Xi; LIN Yi; SHAO Shuai

doi:10.11949/j.issn.0438-1157.20181100

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Influences of inclination angle and heating power on heat transfer performance of ethane pulsating heat pipe

Fluid dynamics and transport phenomena | 更新时间：2026-07-24

- Influences of inclination angle and heating power on heat transfer performance of ethane pulsating heat pipe
- CIESC Journal Vol. 70, Issue 4, Pages: 1383-1389(2019)
- 作者机构：
  
  上海理工大学能源与动力工程学院，上海 200093
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20181100
  CLC： TK 124
- Received：28 September 2018，
  
  Revised：2018-12-30，
  
  Online First：15 June 2020，
  
  Published：12 April 2019
- 稿件说明：
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陈曦, 林毅, 邵帅. 倾角及加热功率对乙烷脉动热管传热性能的影响[J]. 化工学报, 2019, 70(4): 1383-1389

CHEN Xi, LIN Yi, SHAO Shuai. Influences of inclination angle and heating power on heat transfer performance of ethane pulsating heat pipe[J]. CIESC Journal, 2019, 70(4): 1383-1389
陈曦, 林毅, 邵帅. 倾角及加热功率对乙烷脉动热管传热性能的影响[J]. 化工学报, 2019, 70(4): 1383-1389 DOI： 10.11949/j.issn.0438-1157.20181100.

CHEN Xi, LIN Yi, SHAO Shuai. Influences of inclination angle and heating power on heat transfer performance of ethane pulsating heat pipe[J]. CIESC Journal, 2019, 70(4): 1383-1389 DOI： 10.11949/j.issn.0438-1157.20181100.

摘要

为了研究脉动热管在中低温区的传热性能，设计了一台乙烷脉动热管，采用低温Stirling制冷机为冷源。实验研究了在不同温区范围内，加热功率和倾角两个因素对乙烷脉动热管传热性能的影响。研究结果显示：在－40℃和－70℃温区，当倾角小于45°时，倾角对传热温差的影响较小，而倾角在45°～90°之间时，随着倾角的增大，传热温差呈明显上升趋势。在较低加热功率下，倾角对传热温差的影响较小，在较高加热功率时，倾角对传热温差的影响较大。实验还发现在同一倾角下，随着加热功率的增加，传热温差逐渐增大，传热热阻呈现出先减小后增大的趋势。

Abstract

To study the heat transfer performance of the pulsating heat pipe in the middle and low temperature region

an ethane pulsating heat pipe was designed

and the low-temperature Stirling refrigerator was used as the cold source. The effects of heating power and inclination angle on the heat transfer performance of ethane pulsating heat pipe were studied experimentally in different temperature regions. The results showed that in the temperature region of －40℃ and －70℃

when the inclination angle was less than 45°

the inclination angle had little effect on the heat transfer temperature difference. When the inclination angle was between 45° and 90°

the heat transfer temperature difference significantly increased with the increase of the inclination angle. At a low heating power

the inclination angle had little effect on the heat transfer temperature difference. At a high heating power

the inclination had a great influence on the heat transfer temperature difference. It was also found that under the same inclination angle

with the increase of heating power

the heat transfer temperature difference gradually increased

and the heat transfer resistance showed a tendency to decrease first and then increase.

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