可再生能源2017，Vol.35Issue(10)：1454-1461,8.
基于水基SiO2纳米流体PV/T系统辐射性能研究
Study on radiation characteristics of PV/T system based on water-based SiO2 nanofluids
摘要
Abstract
In order to study the transmission characteristics of radiation in water-based SiO2 nanofluids PV/T system, various water-based SiO2 nanofluids were prepared by two-step method. The transmittance of different nanofluids under various optical spacing was measured by spectrophotometer. The radiation transfer model of the system was established by combining Mie and Rayleigh scattering theory. Results show that the water-based SiO2 nanofluids are highly permeable to the available radiation of the photo-electricity, and the low-frequency radiation is highly absorbed, which is perfectly matched with the Si-PV Spectral response curve. When the volume fraction is less than 0.5%, the transmittance is in good agreement with the theoretical value. When the optical path is more than 10 mm, 90% of the low frequency radiation is absorbed by the nanofluids, and less than 80% of the photoelectric radiation can be transmitted to Si-PV surface.The water-based SiO2 nanofluids are used as PV/T radiation splitting filter. it is useful to reduce the temperature of Si-PV, and its total thermal efficiency is more than 75%.关键词
水基SiO2纳米流体/PV/T系统/辐射分频/辐射传递模拟Key words
water-based SiO2 nanofluids/PV/T system/radiation frequency splitting/radiation transfer simulation分类
能源科技引用本文复制引用
李华锋,白建波,张超,陈秉岩,罗朋,夏旭,黄子强..基于水基SiO2纳米流体PV/T系统辐射性能研究[J].可再生能源,2017,35(10):1454-1461,8.基金项目
国家自然科学基金面上项目(NO.51676063) （NO.51676063）
江苏省自然科学基金面上项目(BK20141154) （BK20141154）
江苏省研究生科研与实践创新计划项目(KYCX17_0531). （KYCX17_0531）
