COMBINED HEAT TRANSFER PERFORMANCES OF POROUS VOLUMETRIC SOLAR RECEIVER INSERTED WITH GLASS TUBE

Dai Guilong; Xiang Tao; Wang Xiaoyu; Qiu Jinyou

doi:10.19912/j.0254-0096.tynxb.2023-1913

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COMBINED HEAT TRANSFER PERFORMANCES OF POROUS VOLUMETRIC SOLAR RECEIVER INSERTED WITH GLASS TUBE

更新时间：2025-10-18

- COMBINED HEAT TRANSFER PERFORMANCES OF POROUS VOLUMETRIC SOLAR RECEIVER INSERTED WITH GLASS TUBE
- Vol. 46, Issue 3, Pages: 479-485(2025)
- 作者机构：
  
  福建理工大学建筑新能源与节能福建省高校重点实验室,福州 350118
- 作者简介：
- 基金信息：
- DOI：10.19912/j.0254-0096.tynxb.2023-1913
  CLC： TK513.5
- Published Online：07 April 2025，
  
  Published：2025
- 稿件说明：
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戴贵龙, 向韬, 王孝宇, 邱金友. 内插玻璃管多孔介质吸热器耦合传热性能研究[J]. 太阳能学报, 2025, 46(3): 479-485.

Dai Guilong, Xiang Tao, Wang Xiaoyu, et al. COMBINED HEAT TRANSFER PERFORMANCES OF POROUS VOLUMETRIC SOLAR RECEIVER INSERTED WITH GLASS TUBE[J]. 2025, 46(3): 479-485.
戴贵龙, 向韬, 王孝宇, 邱金友. 内插玻璃管多孔介质吸热器耦合传热性能研究[J]. 太阳能学报, 2025, 46(3): 479-485. DOI： 10.19912/j.0254-0096.tynxb.2023-1913.

Dai Guilong, Xiang Tao, Wang Xiaoyu, et al. COMBINED HEAT TRANSFER PERFORMANCES OF POROUS VOLUMETRIC SOLAR RECEIVER INSERTED WITH GLASS TUBE[J]. 2025, 46(3): 479-485. DOI： 10.19912/j.0254-0096.tynxb.2023-1913.

摘要

为降低多孔介质吸热器中心温度

提高吸热效率和安全可靠性

设计加工一种内插石英玻璃管多孔介质吸热器样机。该吸热器利用内插石英玻璃管均匀聚集太阳光热流密度

抽吸传热流体。采用实验测量和数值模拟方法

对内插石英玻璃管多孔介质吸热器的辐射-对流耦合传热性能进行研究。结果表明

内插石英玻璃管多孔介质吸热器能显著增加中心区域入口速度

协同高斯型聚集太阳光热流密度分布。与单层吸热器相比

内插石英玻璃管多孔介质吸热器峰值温度降低200 K

热效率提高约7.6%。

Abstract

A porous volumetric solar receiver inserted with a quartz glass tube was designed and manufactured to decrease the peak solid temperature and achieve improved thermal efficiency and reliability. This improved receiver homogenizes the concentrated solar flux profile and sucks the heat transfer fluid at the center zone with the inserted quartz glass tube. The radiation-convection heat transfer performances of the improved receiver were investigated by applying the experimental test combined with numerical heat transfer. Results show that the inserted quartz glass tube enables homogenizing the concentrated solar flux profile by increasing the absorbing area and the effects of reflection and refraction on the concentrated solar flux. The inlet velocity at the center zone is much higher than the edge area

which matches the Gaussian concentrated solar flux profile. Compared with the single-layer porous receiver

the improved porous receiver achieves 7.6% higher thermal efficiency and 200 K lower peak solid temperature.

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references

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