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CFD and comparative study on the dual-function solar collectors with and without tile-shaped covers in water heating mode

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  • He, Wei
  • Hong, Xiaoqiang
  • Luo, Bingqing
  • Chen, Hongbing
  • Ji, Jie

Abstract

This paper presents a dedicated study of a novel tile-shaped dual-function solar collector in water heating mode by using computational fluid dynamics (CFD). This system employs a modular panel incorporating tile-shaped covers that is able to serve as part of building pitched roof, thus creating a building integrated, highly efficient and aesthetically appealing solar heating structure, particularly suitable for the Chinese traditional buildings. A complete 3D CFD model was developed. The numerical prediction was validated using experimental data. It was found that the established model is able to predict the operational performance of the system at reasonable accuracy. With the specified system structure, the efficiency of the solar system was found to be a function of its operational conditions. The results indicated that lower inlet water temperature, higher water flow rate, higher ambient air temperature and lower solar radiation led to enhanced thermal efficiency of the module. Further, the performance of the dual-function solar collector with and without tile-shaped covers was comparatively studied. It was found that the tile-shaped collector is able to achieve higher efficiency at higher temperature operation. This work outlines the impacts of the main operational conditions to the tile-shaped dual-function solar collector's efficiency.

Suggested Citation

  • He, Wei & Hong, Xiaoqiang & Luo, Bingqing & Chen, Hongbing & Ji, Jie, 2016. "CFD and comparative study on the dual-function solar collectors with and without tile-shaped covers in water heating mode," Renewable Energy, Elsevier, vol. 86(C), pages 1205-1214.
    • Handle: RePEc:eee:renene:v:86:y:2016:i:c:p:1205-1214
    DOI: 10.1016/j.renene.2015.09.053
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    References listed on IDEAS

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    1. Ji, Jie & Luo, Chenglong & Chow, Tin-Tai & Sun, Wei & He, Wei, 2011. "Thermal characteristics of a building-integrated dual-function solar collector in water heating mode with natural circulation," Energy, Elsevier, vol. 36(1), pages 566-574.
    2. Wang, R.Z. & Zhai, X.Q., 2010. "Development of solar thermal technologies in China," Energy, Elsevier, vol. 35(11), pages 4407-4416.
    3. Pinel, Patrice & Cruickshank, Cynthia A. & Beausoleil-Morrison, Ian & Wills, Adam, 2011. "A review of available methods for seasonal storage of solar thermal energy in residential applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(7), pages 3341-3359, September.
    4. Sun, Wei & Ji, Jie & Luo, Chenglong & He, Wei, 2011. "Performance of PV-Trombe wall in winter correlated with south façade design," Applied Energy, Elsevier, vol. 88(1), pages 224-231, January.
    5. Zhai, X.Q. & Wang, R.Z. & Dai, Y.J. & Wu, J.Y. & Ma, Q., 2008. "Experience on integration of solar thermal technologies with green buildings," Renewable Energy, Elsevier, vol. 33(8), pages 1904-1910.
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    Cited by:

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    2. Yu, Bendong & Jiang, Qingyang & He, Wei & Liu, Shanshan & Zhou, Fan & Ji, Jie & Xu, Gang & Chen, Hongbing, 2018. "Performance study on a novel hybrid solar gradient utilization system for combined photocatalytic oxidation technology and photovoltaic/thermal technology," Applied Energy, Elsevier, vol. 215(C), pages 699-716.
    3. Hao, Wengang & Lu, Yifeng & Lai, Yanhua & Yu, Hongwen & Lyu, Mingxin, 2018. "Research on operation strategy and performance prediction of flat plate solar collector with dual-function for drying agricultural products," Renewable Energy, Elsevier, vol. 127(C), pages 685-696.
    4. Moldovan, Macedon & Rusea, Ioana & Visa, Ion, 2021. "Optimising the thickness of the water layer in a triangle solar thermal collector," Renewable Energy, Elsevier, vol. 173(C), pages 381-388.
    5. Jianhao Sheng & Dianwei Qi & Hongchao Yan & Wanjiang Wang & Tao Wang, 2022. "Experimental Study on Low Carbonization of Green Building Based on New Membrane Structure Solar Sustainable Heat Collection," Sustainability, MDPI, vol. 14(24), pages 1-17, December.

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