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The calculation and analysis of glass-to-metal sealing stress in solar absorber tube

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  • Lei, Dongqiang
  • Wang, Zhifeng
  • Li, Jian

Abstract

The failure or degradation of solar absorber tubes is the single largest cost factor for current parabolic trough solar power plant. The main failure reason is that there are residual stresses in the glass-to-metal joint which are generated during the cooling process of sealing. According to the thin shell theory and thermal stress theory, this paper presents the analytic solution for the glass-to-metal sealing residual stress. It also analyses how the thickness of glass tube, thickness of metal ring, and thermal expansion coefficient affect the residual stress distribution. In order to verify the calculation results, the photoelastic technique is used to measure the residual stress and the tensile test is used to obtain the point of the most dangerous stress and the tensile strength for the sealed specimens. It can be concluded that the maximum tensile stress happens at some distance near the sealing interface on the outer surface of glass tube. The seal strength increases when the thickness of the glass tube is increased. The analytic solution is proved feasible to analyze the residual stress of glass-to-metal seals in solar absorber tubes.

Suggested Citation

  • Lei, Dongqiang & Wang, Zhifeng & Li, Jian, 2010. "The calculation and analysis of glass-to-metal sealing stress in solar absorber tube," Renewable Energy, Elsevier, vol. 35(2), pages 405-411.
    • Handle: RePEc:eee:renene:v:35:y:2010:i:2:p:405-411
    DOI: 10.1016/j.renene.2009.05.021
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    Citations

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    Cited by:

    1. Muñoz, Javier & Abánades, Alberto, 2011. "Analysis of internal helically finned tubes for parabolic trough design by CFD tools," Applied Energy, Elsevier, vol. 88(11), pages 4139-4149.
    2. Hao, Menghao & Chen, Lizhi & Chen, Jianxun & Lu, Luyi & Li, Jianlan, 2022. "Safety and efficiency assessment of absorber with an initial offset in a parabolic trough collector," Renewable Energy, Elsevier, vol. 187(C), pages 774-789.
    3. Wu, Zhiyong & Lei, Dongqiang & Yuan, Guofeng & Shao, Jiajia & Zhang, Yunting & Wang, Zhifeng, 2014. "Structural reliability analysis of parabolic trough receivers," Applied Energy, Elsevier, vol. 123(C), pages 232-241.
    4. Fuqiang, Wang & Ziming, Cheng & Jianyu, Tan & Yuan, Yuan & Yong, Shuai & Linhua, Liu, 2017. "Progress in concentrated solar power technology with parabolic trough collector system: A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 79(C), pages 1314-1328.
    5. Song, Xingwang & Dong, Guobo & Gao, Fangyuan & Diao, Xungang & Zheng, Liqing & Zhou, Fuyun, 2014. "A numerical study of parabolic trough receiver with nonuniform heat flux and helical screw-tape inserts," Energy, Elsevier, vol. 77(C), pages 771-782.
    6. Wu, Zhiyong & Li, Shidong & Yuan, Guofeng & Lei, Dongqiang & Wang, Zhifeng, 2014. "Three-dimensional numerical study of heat transfer characteristics of parabolic trough receiver," Applied Energy, Elsevier, vol. 113(C), pages 902-911.
    7. Joshi, Rakesh & Chhibber, Rahul, 2018. "High temperature wettability studies for development of unmatched glass-metal joints in solar receiver tube," Renewable Energy, Elsevier, vol. 119(C), pages 282-289.
    8. Hu, Xin & Chen, Fei & Zhang, Zhenhua, 2021. "Model construction and optical properties investigation for multi-sectioned compound parabolic concentrator with particle swarm optimization," Renewable Energy, Elsevier, vol. 179(C), pages 379-394.
    9. Fuqiang, Wang & Zhexiang, Tang & Xiangtao, Gong & Jianyu, Tan & Huaizhi, Han & Bingxi, Li, 2016. "Heat transfer performance enhancement and thermal strain restrain of tube receiver for parabolic trough solar collector by using asymmetric outward convex corrugated tube," Energy, Elsevier, vol. 114(C), pages 275-292.
    10. Lei, Dongqiang & Wang, Zhifeng & Li, Jian & Li, Jianbin & Wang, Zhijian, 2012. "Experimental study of glass to metal seals for parabolic trough receivers," Renewable Energy, Elsevier, vol. 48(C), pages 85-91.
    11. Bellos, Evangelos & Tzivanidis, Christos & Tsimpoukis, Dimitrios, 2017. "Multi-criteria evaluation of parabolic trough collector with internally finned absorbers," Applied Energy, Elsevier, vol. 205(C), pages 540-561.

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