Research on effects of foam filling types on heat transfer of supercritical CO<sub>2</sub> flow in tube

Zhanbin LIU; Yaling HE; Kun WANG; Zhao MA; Tao JIANG

doi:10.11949/0438-1157.20190408

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Research on effects of foam filling types on heat transfer of supercritical CO₂ flow in tube

更新时间：2026-03-25

- Research on effects of foam filling types on heat transfer of supercritical CO₂ flow in tube
- CIESC Journal Vol. 70, Issue 9, Pages: 3329-3336(2019)
- 作者机构：
  
  西安交通大学热流科学与工程教育部重点实验室,陕西,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20190408
  CLC： TK124
- Online First：05 September 2019，
  
  Published：05 September 2019
- 稿件说明：
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Zhanbin LIU, Yaling HE, Kun WANG, et al. Research on effects of foam filling types on heat transfer of supercritical CO₂ flow in tube[J]. CIESC Journal, 2019, 70(9): 3329-3336. DOI: 10.11949/0438-1157.20190408.
DOI：

Zhanbin LIU, Yaling HE, Kun WANG, et al. Research on effects of foam filling types on heat transfer of supercritical CO₂ flow in tube[J]. CIESC Journal, 2019, 70(9): 3329-3336. DOI: 10.11949/0438-1157.20190408. DOI：

摘要

超临界CO2工质在太阳能热发电系统中的应用能够有效提升整个系统的效率、紧凑性和环境友好性，因此有必要优化超临界CO2用太阳能集热器的综合性能。提出了泡沫材料有效热导率新的预测模型，并研究了不同泡沫材料填充方式对集热管内超临界CO2流动与换热性能、管壁温度分布的影响规律。结果表明，环形填充方式（沿管内壁填充）的流动换热综合性能指标(j/j c)/(f/f c)1/3最优，净吸热量最大，管壁最高温度最低且温度分布最均匀。

Abstract

The application of supercritical CO2 in solar thermal power generation system could effectively improve the efficiency

compactness and environmental friendly of the system. Therefore

it is necessary to optimize the comprehensive performance of solar collectors using supercritical CO2. In this paper

a new calculation model for the effective thermal conductivity of foam materials is proposed. The effects of different foam filling types on the flow and heat transfer performance and wall temperature distribution in receiver tubes are studied. The results show that the flow-heat transfer performance index (j/j c)/(f/f c)1/3 is optimal for the annular filling method (filled along the inner wall of the tube)

the net heat absorption is the largest

the highest wall temperature is the lowest and the temperature distribution is the same.

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Research on effects of foam filling types on heat transfer of supercritical CO2 flow in tube

DOI：10.11949/0438-1157.20190408

摘要

Abstract

关键词

Keywords

references

Research on effects of foam filling types on heat transfer of supercritical CO₂ flow in tube