Numerical Study on Thermal Efficiency of Large-Scale Flat-Plate Solar Collectors

  • Dengjia WangEmail author
  • Yuchao Ren
  • Yingya Chen
  • Yanfeng Liu
Conference paper
Part of the Environmental Science and Engineering book series (ESE)


The flat-plate solar collectors have better efficiency characteristics in low-temperature region. With the development of solar thermal utilization technology, the research of collectors suitable for different temperature requirements, application sites and personalized design of collectors will be a new direction in the future, and the flat-plate solar collectors used in solar heating system will be a development trend. Therefore, it is proposed that the flat-plate solar collectors should increase their collector efficiency and outlet temperature by increasing the scale. According to the heat transfer mathematical model of flat-plate solar collector, the relationship between heat-collecting area and collector efficiency was studied. In this paper, the 3-D physical models of the large-scale flat-plate solar collectors were established. The CFD software was used to simulate the operation characteristics of large-scale flat-plate solar collectors under different working conditions, and the heat loss, heat collection and thermal efficiency of different scale collectors were analyzed. It is shown that the instantaneous efficiency of large-scale collector is 1– 4% higher than that of parallel collector.


Large scale Solar collector Thermal efficiency 



The research was supported by National Natural Science Foundation of China (Nos. 51678468, 51878532) and the National key research and development program (No. 2016YFC0700400).


  1. 1.
    Chen, Z., et al.: Efficiencies of flat plate solar collectors at different flow rates. Energy Proc. 30, 65–72 (2012)CrossRefGoogle Scholar
  2. 2.
    Jupeng, H., et al.: Development trend of flat plate solar collector technology. Constr. Sci. Technol. 10(4), 40–47 (2017)Google Scholar
  3. 3.
    Gunjo, D.G., et al.: CFD and experimental investigation of flat plate solar water heating system under steady state condition. Renewable Energy 106, 24–36 (2017)CrossRefGoogle Scholar
  4. 4.
    Ullah, F., et al.: Numerical simulation on thermal performance of flat plate solar collector with double glass covers. J. Appl. Sci. 17(10), 502–510 (2017)CrossRefGoogle Scholar
  5. 5.
    Vasudeva, K., at el.: Numerical simulation of a solar flat plate collector using discrete transfer radiation model (DTRM)—A CFD Approach. Lect. Notes Eng. Comput. Sci. 2192(1), 2355–2360 (2011)Google Scholar
  6. 6.
    Dović, D., et al.: Numerically assisted analysis of flat and corrugated plate solar collectors thermal performances. Sol. Energy 86(9), 2416–2431 (2012)CrossRefGoogle Scholar
  7. 7.
    Yuechao, D., et al.: Numerical study on natural convection heat transfer of air layer inside the flat plate solar collector. Build. Sci. 28(10), 84–87 (2012)Google Scholar
  8. 8.
    Jiandong, Z., et al.: Numerical simulation for structural parameters of flat-plate solar collector. Sol. Energy 117(2015), 192–202 (2015)CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Dengjia Wang
    • 1
    • 2
    Email author
  • Yuchao Ren
    • 1
    • 2
  • Yingya Chen
    • 1
    • 2
  • Yanfeng Liu
    • 1
    • 2
  1. 1.State Key Laboratory of Green Building in Western ChinaXi’an University of Architecture and TechnologyXi’anChina
  2. 2.School of Building Services Science and EngineeringXi’an University of Architecture and TechnologyXi’anChina

Personalised recommendations