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Article Navigation >  Green Energy&Environment  > 2018  >  3(2): 129-137
Mohammad Hatami, Jiafeng Geng, Dengwei Jing. Enhanced efficiency in Concentrated Parabolic Solar Collector (CPSC) with a porous absorber tube filled with metal nanoparticle suspension. Green Energy&Environment, 2018, 3(2): 129-137. doi: 10.1016/j.gee.2017.12.002
Citation: Mohammad Hatami, Jiafeng Geng, Dengwei Jing. Enhanced efficiency in Concentrated Parabolic Solar Collector (CPSC) with a porous absorber tube filled with metal nanoparticle suspension. Green Energy&Environment, 2018, 3(2): 129-137. doi: 10.1016/j.gee.2017.12.002
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Enhanced efficiency in Concentrated Parabolic Solar Collector (CPSC) with a porous absorber tube filled with metal nanoparticle suspension

doi: 10.1016/j.gee.2017.12.002
  • a.

    Mechanical Engineering Department, Esfarayen University of Technology (EUT), Esfarayen, North Khorasan, Iran

  • b.

    International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China

More Information
  • Corresponding author: E-mail address: dwjing@xjtu.edu.cn (Dengwei Jing)
  • Received date 15 October 2017, Accepted date 26 December 2017, RevRecd date 08 December 2017, Available online 02 January 2018, Publish date 30 April 2018,
    Abstract
  • In this study, effects of different nanoparticles and porosity of absorber tube on the performance of a Concentrating Parabolic Solar Collector (CPSC) were investigated. A section of porous-filled absorber tube was modeled as a semi-circular cavity under the solar radiation which is filled by nanofluids and the governing equations were solved by FlexPDE numerical software. The effect of four physical parameters, nanoparticles type, nanoparticles volume fraction (φ), Darcy number (Da) and Rayleigh number (Ra), on the Nusselt number (Nu) was discussed. It turns out that Cu nanoparticle is the most suitable one for such solar collectors, compared to the commonly used Fe3O4, Al2O3, TiO2. With the increased addition of Cu nanoparticles all the parameters φ, Da and Ra shows a significant increase against the Nu, indicates the enhanced heat transfer in such cases. As a result, low concentration of Cu nanoparticle suspension combined with porous matrix was supposed to be beneficial for the performance enhancement of concentrating parabolic solar collector.

     

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