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Large scale test of a novel back-pass non-perforated unglazed solar air collector

Author

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  • Paya-Marin, Miguel A.
  • Lim, James B.P.
  • Chen, Jian-Fei
  • Lawson, R. Mark
  • Gupta, Bhaskar Sen

Abstract

This paper describes large scale tests conducted on a novel unglazed solar air collector system. The proposed system, referred to as a back-pass solar collector (BPSC), has on-site installation and aesthetic advantages over conventional unglazed transpired solar collectors (UTSC) as it is fully integrated within a standard insulated wall panel. This paper presents the results obtained from monitoring a BPSC wall panel over one year. Measurements of temperature, wind velocity and solar irradiance were taken at multiple air mass flow rates. It is shown that the length of the collector cavities has a direct impact on the efficiency of the system. It is also shown that beyond a height-to-flow ratio of 0.023 m/m³/hr/m2, no additional heat output is obtained by increasing the collector height for the experimental setup in this study, but these numbers would obviously be different if the experimental setup or test environment (e.g. location and climate) change. An equation for predicting the temperature rise of the BPSC is proposed.

Suggested Citation

  • Paya-Marin, Miguel A. & Lim, James B.P. & Chen, Jian-Fei & Lawson, R. Mark & Gupta, Bhaskar Sen, 2015. "Large scale test of a novel back-pass non-perforated unglazed solar air collector," Renewable Energy, Elsevier, vol. 83(C), pages 871-880.
  • Handle: RePEc:eee:renene:v:83:y:2015:i:c:p:871-880
    DOI: 10.1016/j.renene.2015.05.039
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    Cited by:

    1. Peci, F. & Comino, F. & Ruiz de Adana, M., 2018. "Performance of an unglazed transpire collector in the facade of a building for heating and cooling in combination with a desiccant evaporative cooler," Renewable Energy, Elsevier, vol. 122(C), pages 460-471.
    2. Wang, Yang & Shukla, Ashish & Liu, Shuli, 2017. "A state of art review on methodologies for heat transfer and energy flow characteristics of the active building envelopes," Renewable and Sustainable Energy Reviews, Elsevier, vol. 78(C), pages 1102-1116.
    3. Charvát, Pavel & Klimeš, Lubomír & Pech, Ondřej & Hejčík, Jiří, 2019. "Solar air collector with the solar absorber plate containing a PCM – Environmental chamber experiments and computer simulations," Renewable Energy, Elsevier, vol. 143(C), pages 731-740.

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