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Applied energy v.189, 2017년, pp.520 - 533   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Parametric analysis of a hybrid solar concentrating photovoltaic/concentrating solar power (CPV/CSP) system

Han, Xue (Corresponding author. ) ; Zhao, Guankun ; Xu, Chao ; Ju, Xing ; Du, Xiaoze ; Yang, Yongping ;
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    Abstract This paper presents a parametric study of a recently proposed concentrating photovoltaic/concentrating solar power (CPV/CSP) hybrid system based on the energy and exergy analyses. A steady-state physical model is established for the hybrid system to carry out the energy and exergy analyses, in which a more general trapezoidal-shaped distribution of concentrated solar energy flux density is employed. Effects of various parameters are investigated including the average optical concentration ratio, the outlet temperature of R134a from the solar thermal receiver, and the coolant saturation vapor temperature. The results show that the generating efficiency and the power output of the hybrid system can increase by about 20% compared with the CPV-alone system, which indicates that the proposed hybrid system has a great potential to increase the utilization ratio of solar energy. Increasing the average optical concentration ratio or decreasing the outlet temperature of R134a from the solar thermal receiver can result in evident increases of both the energy efficiency and the exergy efficiency of the hybrid system. It is also shown that the energy and exergy efficiencies of the organic Rankine cycle (ORC) subsystem are nearly independent of the Direct Normal Irradiance (DNI), and the hybrid system can be always operated with a high efficiency despite of the DNI change at different moments or days. Highlights Performance of the hybrid system is evaluated with the energy and exergy analyses. Trapezoidal-shaped distribution of concentrated radiation flux density is adopted. Effects of the influencing factors are investigated to optimize the design parameters. Performance and reliability of the system with various DNIs are also discussed.


  • 주제어

    Concentrating photovoltaics .   Concentrating solar power .   Evaporative cooling .   Energy analysis .   Exergy analysis.  

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