A novel solar spectrum splitting PV-CPT hybrid conversion system based on linear Fresnel filter-concentrator structure: Experimental device and application analysis

IF 10.1 1区工程技术 Q1 ENERGY & FUELS

Applied Energy Pub Date : 2025-06-14 DOI:10.1016/j.apenergy.2025.126300

Jialu Tian, Guijia Zhang, Haojin Wu, Shiquan Shan, Leyi Miao, Ziying Cheng, Zhijun Zhou, Kefa Cen

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引用次数: 0

Abstract

This study investigates the solar energy efficient conversion of photovoltaic-concentrated photothermal (PV-CPT), integrating the multilayer selective filter into a Linear Fresnel concentrating structure for full-spectrum splitting and residual-spectrum concentration. The optical filter designed for Si PV cell achieves high transmittance in the respond waveband, transmitting 60.7 % solar energy for PV power generation. The residual spectrum is reflected and concentrated by the Linear-Fresnel selective filter field to the thermal receiver. Three typical thermal utilization methods, Organic Rankine Cycle (ORC), Methanol Decomposition (MD) and coupling with Steam Rankine Cycle (SRC) are analyzed for CPT conversion. The exergy efficiencies of these processes are evaluated to understand the mechanism of irreversible losses. The power generation efficiencies of hybrid systems based on ORC, MD, and coupling with SCR are 31.56 %, 31.73 % and 32.65 %, respectively. The coupling with SRC method achieves a higher CPT exergy efficiency of 21 % while having the highest hybrid system efficiency, making it the optimal for residual-spectrum CPT conversion. An experimental device and a thermo-physical model of the system are developed to evaluate system performance, with the receiver tube reaching 435 K at a concentration ratio of 9.8. This study provides valuable insights for the implementation of high-efficiency solar full-spectrum energy conversion.

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基于线性菲涅耳滤光器-聚光器结构的新型太阳分光PV-CPT混合转换系统：实验装置及应用分析

本研究研究了光伏-聚光热（PV-CPT）的太阳能高效转换，将多层选择滤波器集成到线性菲涅耳聚光结构中，用于全光谱分裂和剩余光谱浓缩。为硅光伏电池设计的滤光片在响应波段具有较高的透过率，可透过60.7%的太阳能用于光伏发电。残余光谱被线性菲涅耳选择滤波场反射并集中到热接收机。分析了有机朗肯循环（ORC）、甲醇分解（MD）和耦合蒸汽朗肯循环（SRC）三种典型的CPT转化热利用方法。评估这些过程的火用效率，以了解不可逆损失的机制。基于ORC、MD和耦合可控硅的混合动力系统的发电效率分别为31.56%、31.73%和32.65%。与SRC方法的耦合实现了高达21%的CPT火用效率，同时具有最高的混合系统效率，使其成为剩余频谱CPT转换的最佳选择。建立了系统的实验装置和热物理模型来评估系统的性能，接收管在浓度比为9.8时达到435 K。本研究为高效太阳能全光谱能量转换的实现提供了有价值的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Energy 工程技术-工程：化工

CiteScore

21.20

自引率

10.70%

发文量

1830

审稿时长

41 days

期刊介绍： Applied Energy serves as a platform for sharing innovations, research, development, and demonstrations in energy conversion, conservation, and sustainable energy systems. The journal covers topics such as optimal energy resource use, environmental pollutant mitigation, and energy process analysis. It welcomes original papers, review articles, technical notes, and letters to the editor. Authors are encouraged to submit manuscripts that bridge the gap between research, development, and implementation. The journal addresses a wide spectrum of topics, including fossil and renewable energy technologies, energy economics, and environmental impacts. Applied Energy also explores modeling and forecasting, conservation strategies, and the social and economic implications of energy policies, including climate change mitigation. It is complemented by the open-access journal Advances in Applied Energy.