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Comparative study of solar cooling systems with building-integrated solar collectors for use in sub-tropical regions like Hong Kong

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  • Fong, K.F.
  • Lee, C.K.
  • Chow, T.T.

Abstract

The performance of solar cooling systems with building-integrated (BI) solar collectors was simulated and the results compared with those having the solar collectors installed conventionally on the roof based on the weather data in Hong Kong. Two types of solar collectors and the corresponding cooling systems, namely the flat-plate collectors for absorption refrigeration and the PV panels for DC-driven vapour compression refrigeration, were used in the analysis. It was found that in both cases, the adoption of BI solar collectors resulted in a lower solar fraction (SF) and consequently a higher primary energy consumption even though the zone loads were reduced. The reduction in SF was more pronounced in the peak load season when the solar radiation was nearly parallel to the solar collector surfaces during the daytimes, especially for those facing the south direction. Indeed, there were no outputs from the BI flat-plate collectors facing the south direction between May and July. The more severe deterioration in the system performance with the BI flat-plate type collectors made them technically infeasible in terms of the energy-saving potential. It was concluded that the use of BI solar collectors in solar cooling systems should be restricted only to situations where the availability of the roof was limited or insufficient when applied in sub-tropical regions like Hong Kong.

Suggested Citation

  • Fong, K.F. & Lee, C.K. & Chow, T.T., 2012. "Comparative study of solar cooling systems with building-integrated solar collectors for use in sub-tropical regions like Hong Kong," Applied Energy, Elsevier, vol. 90(1), pages 189-195.
    • Handle: RePEc:eee:appene:v:90:y:2012:i:1:p:189-195
    DOI: 10.1016/j.apenergy.2011.06.013
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    3. Herrando, María & Pantaleo, Antonio M. & Wang, Kai & Markides, Christos N., 2019. "Solar combined cooling, heating and power systems based on hybrid PVT, PV or solar-thermal collectors for building applications," Renewable Energy, Elsevier, vol. 143(C), pages 637-647.
    4. Lamnatou, Chr. & Mondol, J.D. & Chemisana, D. & Maurer, C., 2015. "Modelling and simulation of Building-Integrated solar thermal systems: Behaviour of the system," Renewable and Sustainable Energy Reviews, Elsevier, vol. 45(C), pages 36-51.
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    12. Mao, Ning & Pan, Dongmei & Li, Zhao & Xu, Yingjie & Song, Mengjie & Deng, Shiming, 2017. "A numerical study on influences of building envelope heat gain on operating performances of a bed-based task/ambient air conditioning (TAC) system in energy saving and thermal comfort," Applied Energy, Elsevier, vol. 192(C), pages 213-221.
    13. Yilmaz, Saban & Binici, Hanifi & Ozcalik, Hasan Riza, 2016. "Energy supply in a green school via a photovoltaic-thermal power system," Renewable and Sustainable Energy Reviews, Elsevier, vol. 57(C), pages 713-720.
    14. Cao, Sunliang & Hasan, Ala & Sirén, Kai, 2014. "Matching analysis for on-site hybrid renewable energy systems of office buildings with extended indices," Applied Energy, Elsevier, vol. 113(C), pages 230-247.
    15. Wang, Kai & Herrando, María & Pantaleo, Antonio M. & Markides, Christos N., 2019. "Technoeconomic assessments of hybrid photovoltaic-thermal vs. conventional solar-energy systems: Case studies in heat and power provision to sports centres," Applied Energy, Elsevier, vol. 254(C).
    16. Subiantoro, Alison & Ooi, Kim Tiow, 2013. "Analytical models for the computation and optimization of single and double glazing flat plate solar collectors with normal and small air gap spacing," Applied Energy, Elsevier, vol. 104(C), pages 392-399.
    17. Herrando, M. & Coca-Ortegón, A. & Guedea, I. & Fueyo, N., 2023. "Experimental validation of a solar system based on hybrid photovoltaic-thermal collectors and a reversible heat pump for the energy provision in non-residential buildings," Renewable and Sustainable Energy Reviews, Elsevier, vol. 178(C).
    18. Borello, Domenico & Corsini, Alessandro & Delibra, Giovanni & Evangelisti, Sara & Micangeli, Andrea, 2012. "Experimental and computational investigation of a new solar integrated collector storage system," Applied Energy, Elsevier, vol. 97(C), pages 982-989.
    19. Inayat, Abrar & Raza, Mohsin, 2019. "District cooling system via renewable energy sources: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 107(C), pages 360-373.
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    21. Pintaldi, Sergio & Sethuvenkatraman, Subbu & White, Stephen & Rosengarten, Gary, 2017. "Energetic evaluation of thermal energy storage options for high efficiency solar cooling systems," Applied Energy, Elsevier, vol. 188(C), pages 160-177.

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