Research on heat transfer performance of amphiphilic nanofluid solar gravity heat pipe

ZHAO Jiateng; WANG Zengpeng; DAI Yucheng; LIU Changhui; RAO Zhonghao

doi:10.11949/0438-1157.20200465

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Research on heat transfer performance of amphiphilic nanofluid solar gravity heat pipe

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

- Research on heat transfer performance of amphiphilic nanofluid solar gravity heat pipe
- CIESC Journal Vol. 71, Issue 12, Pages: 5461-5469(2020)
- 作者机构：
  
  中国矿业大学电气与动力工程学院，江苏徐州 221116
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20200465
  CLC： TK 172
- Received：05 May 2020，
  
  Revised：2020-09-18，
  
  Online First：17 December 2020，
  
  Published：05 December 2020
- 稿件说明：
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赵佳腾, 王增鹏, 戴宇成, 刘昌会, 饶中浩. 两亲性纳米流体太阳能重力热管传热性能研究[J]. 化工学报, 2020, 71(12): 5461-5469

ZHAO Jiateng, WANG Zengpeng, DAI Yucheng, LIU Changhui, RAO Zhonghao. Research on heat transfer performance of amphiphilic nanofluid solar gravity heat pipe[J]. CIESC Journal, 2020, 71(12): 5461-5469
赵佳腾, 王增鹏, 戴宇成, 刘昌会, 饶中浩. 两亲性纳米流体太阳能重力热管传热性能研究[J]. 化工学报, 2020, 71(12): 5461-5469 DOI： 10.11949/0438-1157.20200465.

ZHAO Jiateng, WANG Zengpeng, DAI Yucheng, LIU Changhui, RAO Zhonghao. Research on heat transfer performance of amphiphilic nanofluid solar gravity heat pipe[J]. CIESC Journal, 2020, 71(12): 5461-5469 DOI： 10.11949/0438-1157.20200465.

摘要

针对石墨烯/水纳米流体的分散不稳定问题，采用化学方法制备了不含表面活性剂的改性石墨烯/水两亲性纳米流体，研究了以改性石墨烯/水两亲性纳米流体为工质的太阳重力热管在不同加热功率、安装角度和浓度下的热性能。结果表明，与去离子水相比，两亲性纳米流体可以降低热管的启动温度。在实验加热功率范围内，当加热功率相对较小时，两亲性纳米流体热管的热阻明显低于去离子水；随着加热功率的增加，热阻差异可以忽略。当安装角度相对较小时，其对蒸发段传热能力影响较大。当加热功率为20 W，纳米流体质量分数从0.1%增加到0.6%时，蒸发段传热系数下降了54.7%；当加热功率为40 W，纳米流体质量分数从0.1%增加到0.6%时，蒸发段传热系数下降了48.9%。

Abstract

Modified graphene/deionized water (DW) based amphiphilic nanofluid (A-nanofluid) without surfactant was prepared through chemical method. The thermal performance of solar gravity heat pipe (SGHP) with A-nanofluid was investigated under different heating powers

incline angles and concentrations. It was found that A-nanofluid can reduce the start-up temperature of the SGHP compared with DW. Within the measured range of heating power

the thermal resistance of the SGHP filled with A-nanofluid is obviously lower than that with DW when the heating power is relatively small. However

the difference of thermal resistance of the SGHP filled with A-nanofluid and DW is almost negligible with the increase of heating power. The incline angle has great influence on the heat transfer capacity of the evaporation section when the incline angle is relatively small. When the heating power is 20 W and the nanofluid concentration (mass ratio) increases from 0.1% to 0.6%

the heat transfer coefficient of the evaporation section decreases by 54.7%; when the heating power is 40 W

the nanofluid concentration (mass ratio) increases from 0.1% to 0.6%

the heat transfer coefficient of the evaporation section decreases by 48.9%.

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references

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