摘要
本文研究了一种基于光谱分频的太阳能光伏/光热化学耦合利用系统。在该系统中,全光谱的太阳能按照波长不同被区分利用。适合光伏电池利用的太阳能被分配给光伏电池进行光伏转换,其它波段的太阳能则转化为热能驱动甲醇裂解反应产生合成气。实验结果表明在太阳辐照强度为712.8 W/㎡,甲醇流量为2.7 kg/h时,系统效率达到31.18%。系统实现了低品位的太阳能向高品位的电能和化学能的转换,为研究太阳能的全光谱高效利用提供了新的思路。
A photovoltaic/thermochemical hybrid solar system based on spectral splitting is studied in this paper.In this solar system,the full spectrum of solar energy is split into several part to be used according to wavelengths of sun lights.Solar radiation in the spectrum suitable for photovoltaic conversion is converted directly to electricity using a photovoltaic cell.The solar energy in rest of the spectrum is converted thermal energy to drive a methanol vapor decomposition reaction for syngas production.The experimental results show that when the direct solar radiation is 712.8 W·m^(-2) and methanol flow rate is 2.7 kg·h^(-1),the system efficiency reaches to 31.18%.The system realizes the conversion of low-grade solar energy to high-grade electrical energy and chemical energy and provides a new idea for the efficient utilization of the full spectral solar energy.
作者
朱涛
李强
宣益民
刘东
洪慧
ZHU Tao;LI Qiang;XUAN Yi-Min;HONG Hui(MIT Key Laboratory of Thermal Control of Electronic Equiprment,School of Energy and Power Engineering,Nanjing University of Science&Technology,Nanjing 210094,China;School of Energy and Power,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100080,China)
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2021年第4期999-1003,共5页
Journal of Engineering Thermophysics
基金
国家自然科学基金资助项目(No.51590903)。
关键词
太阳能
光伏
光热化学
光谱分频
solar energy
photovoltaic
thermochemical
spectral splitting
