首页|Exergetic and energetic parametric evaluation of integrated spectral beam splitting concentrated photovoltaic thermal and two-stage organic Rankine cycle system

Exergetic and energetic parametric evaluation of integrated spectral beam splitting concentrated photovoltaic thermal and two-stage organic Rankine cycle system

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  • NETL
  • NSTL
  • Elsevier
© 2024As fossil energy reserves diminish and environmental concerns grow, there is increasing interest in solar-based combined heating and power systems. The organic Rankine cycle is a promising technology for efficiently converting heat from concentrated photovoltaic thermal systems into power. This study hypothesizes integrating a spectral beam splitting concentrated photovoltaic thermal system with the recent organic Rankine cycle advancements, the two-stage organic Rankine cycle, noted for its straightforward architecture and enhanced power outputs to optimize solar energy utilization for both electricity generation and thermal power. The aim is to explore the influence of key design factors on each subsystem's performance using EES and MATLAB, assessing the integrated system under various atmospheric conditions. The model's accuracy was confirmed by comparing the results of the two sub-systems to previously published data. The findings indicate that the total electrical efficiency increases from 8.98 % to 16.94 % as solar irradiance rises from 600 W/m2 to 1000 W/m2, leading to an overall efficiency improvement of 57.94 %. The integrated system can produce 2.14 kWh/day/m2 of electrical power and 6.17 kWh/day/m2 of thermal power, achieving a heat-to-power ratio of approximately 2.83, comparable to conventional systems. The research will yield actionable insights that can be utilized to enhance the design and performance of the system.

Combined Heat and Power SystemsConcentrated-Photovoltaic/ThermalSpectral-Beam-SplittingTwo-Stage Organic Rankine Cycle

Elsayed A.、Zhang B.、Miao Z.、Liu G.、Xu C.、Ju X.

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Beijing Laboratory of New Energy Storage Technology North China Electric Power University||Mechanical Power Engineering Department Faculty of Engineering – Mataria Helwan University

Beijing Laboratory of New Energy Storage Technology North China Electric Power University

2025

10.1016/j.enconman.2024.119297

Energy conversion & management

Energy conversion & management

ISSN：0196-8904
年,卷(期)：2025.324(Jan.)
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