水基Ag-SiO2纳米流体分频光伏光热集热器功能单元性能实验研究
摘要：摘要以纳米流体分频的光伏/光热（PV/T）集热器能使光伏和光热模块的工作温度解耦,从而获得更高的太阳能综合利用效率。以水基Ag-SiO2纳米流体为分频液和集热工质,设计新型的分频PV/T集热器结构,研究在Ag-SiO2纳米流体4种质量浓度和运行条件下,分频PV/T集热器功能单元的热、电性能。结果表明：Ag-SiO2纳米流体的质量浓度显著影响PV/T集热器功能单元的性能,质量浓度为0.025%时,综合效率约为63.21%,比水为分频流体时的综合效率提升约38.04%;得出水基Ag-SiO2纳米流体分频时PV/T集热器功能单元的热、电效率和综合效率与不同纳米颗粒质量浓度的拟合关系式,为通过控制纳米流体质量浓度参数从而调节PV/T集热器的热、电输出提供理论依据。
Abstract:：A photovoltaic/thermal (PV/T) collector that uses a nanofluid splitter can decouple the working temperature of the photovoltaic and thermal modules, achieving higher overall solar utilization efficiency. In this article, an innovative PV/T collector structure was designed using aqueous Ag-SiO2 nanofluid as the splitter and heat transfer fluid. The thermal and electrical properties of the spectrum-splitting PV/T collector hybrid unit were studied under four different mass concentrations and operating conditions of aqueous Ag-SiO2 nanofluid. The results show that the mass concentration of aqueous Ag-SiO2 nanofluid significantly affects the performance of the hybrid unit of the PV/T collector. When the mass concentration is 0.025%, the comprehensive efficiency is about 63.21%, which is about 38.04% higher than that when water is the spectrum-splitting fluid. The fitting relationships between the thermal, electrical, and comprehensive efficiency of the hybrid unit of the PV/T collector and the mass concentration of different nanoparticles are obtained during the spectrum-splitting with aqueous Ag-SiO2 nanofluid, which provides a theoretical basis for adjusting the thermal and electrical output of the PV/T collector by controlling the mass concentration parameters of the nanofluid.
中文标题：水基Ag-SiO2纳米流体分频光伏光热集热器功能单元性能实验研究
英文标题：Experimental Study on Performance of Spectrum-Splitting Photovoltaic/Thermal Hybrid Unit Using Aqueous Ag-SiO2 Nanofluid as Working Fluid
发表时间：2023-12-25
作者：
刘仙萍, 田东, TAYLOR Robert A.
作者简介：
刘仙萍（1978-）,女,博士,副教授,硕士生导师,主要从事光伏/光热一体化技术研究。田 东（1997-）,男,硕士研究生,主要从事太阳能光热利用和流体传热研究。TAYLOR Robert A.（1981-）,男,博士,教授,博士生导师,主要从事太阳能纳米流体、工程光学材料和复合光伏/光热系统研究。
关键词：太阳能,纳米流体,光谱分频,PV/T,质量浓度,
Key words：solar energy,nanofluid,spectrum-splitting,PV/T,mass concentration,
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