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Experimental Study on Vacuum Performance of Parabolic Trough Receivers based on a Novel Non-destructive Testing Method

Author

Listed:
  • Fangyuan Yao

    (Key Laboratory of Solar Thermal Energy and Photovoltaic System, Chinese Academy of Sciences, Beijing 100190, China
    Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China
    University of Chinese Academy of Sciences, Beijing 100049, China
    Beijing Engineering Research Center of Solar Thermal Power, Beijing 100190, China)

  • Dongqiang Lei

    (Key Laboratory of Solar Thermal Energy and Photovoltaic System, Chinese Academy of Sciences, Beijing 100190, China
    Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China
    University of Chinese Academy of Sciences, Beijing 100049, China
    Beijing Engineering Research Center of Solar Thermal Power, Beijing 100190, China)

  • Ke Yu

    (Royal Tech CSP Limited, Changzhou 213163, Jiangsu, China)

  • Yingying Han

    (Royal Tech CSP Limited, Changzhou 213163, Jiangsu, China)

  • Pan Yao

    (Key Laboratory of Solar Thermal Energy and Photovoltaic System, Chinese Academy of Sciences, Beijing 100190, China
    Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China
    University of Chinese Academy of Sciences, Beijing 100049, China
    Beijing Engineering Research Center of Solar Thermal Power, Beijing 100190, China)

  • Zhifeng Wang

    (Key Laboratory of Solar Thermal Energy and Photovoltaic System, Chinese Academy of Sciences, Beijing 100190, China
    Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China
    University of Chinese Academy of Sciences, Beijing 100049, China
    Beijing Engineering Research Center of Solar Thermal Power, Beijing 100190, China)

  • Quanxi Fang

    (Royal Tech CSP Limited, Changzhou 213163, Jiangsu, China)

  • Qiao Hu

    (Royal Tech CSP Limited, Changzhou 213163, Jiangsu, China)

Abstract

The loss of vacuum in the parabolic trough receivers is one of the most common problems in the parabolic trough solar power plants. The vacuum level and gas species in the annulus of the receiver determine the heat loss and have an important influence on the thermal efficient of the solar system. If hydrogen is inside the annulus, it can cause heat losses to be almost four times that of a receiver with good vacuum. However, it is hard to non-destructively measure the gas species and partial pressure in the annulus of the receiver. In this paper, a novel non-destructive method was presented to evaluate the vacuum performance by using combined dielectric barrier discharge and the spectral analysis technology. The discharge characteristics and spectrometric properties of four kinds of gases, which are the most likely gases to be found in the receivers, were studied in the experiments. The test results of the non-destructive vacuum evaluation method agree well with the results of the residual gas analysis. The feasibility and accuracy of the non-destructive test method was verified. The relationship between the vacuum performance of receiver and the spectral characteristics of dielectric barrier discharge were obtained by a series of experiments.

Suggested Citation

  • Fangyuan Yao & Dongqiang Lei & Ke Yu & Yingying Han & Pan Yao & Zhifeng Wang & Quanxi Fang & Qiao Hu, 2019. "Experimental Study on Vacuum Performance of Parabolic Trough Receivers based on a Novel Non-destructive Testing Method," Energies, MDPI, vol. 12(23), pages 1-18, November.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:23:p:4531-:d:291913
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    References listed on IDEAS

    as
    1. Linrui Ma & Zhifeng Wang & Dongqiang Lei & Li Xu, 2019. "Establishment, Validation, and Application of a Comprehensive Thermal Hydraulic Model for a Parabolic Trough Solar Field," Energies, MDPI, vol. 12(16), pages 1-24, August.
    2. 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.
    3. Yılmaz, İbrahim Halil & Mwesigye, Aggrey, 2018. "Modeling, simulation and performance analysis of parabolic trough solar collectors: A comprehensive review," Applied Energy, Elsevier, vol. 225(C), pages 135-174.
    4. Liu, Jinmei & Lei, Dongqiang & Li, Qiang, 2016. "Vacuum lifetime and residual gas analysis of parabolic trough receiver," Renewable Energy, Elsevier, vol. 86(C), pages 949-954.
    5. Lei, Dongqiang & Fu, Xuqiang & Ren, Yucong & Yao, Fangyuan & Wang, Zhifeng, 2019. "Temperature and thermal stress analysis of parabolic trough receivers," Renewable Energy, Elsevier, vol. 136(C), pages 403-413.
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