ACCELERATED ULTRAVIOLET TEST AND HIGH TEMPERATURE TEST ON DIELECTRIC LIQUID FOR IMMERSING SOLAR CELLS
Solar cells immersed in dielectric liquid have an increased operating efficiency, and the cells can be cooled effectively by liquid. It is particularly important to the concentrated photovoltaic power system, as in the concentrated system excessive heat can generated due to high intensity irradiation, which can easily result in cells degradation due to experience high temperature. So we introduced a new active cooling method: direct contact heat transfer mode by immerging solar cells in dielectric liquid. In the immersed system both the front and back surface of the cells can be contact with liquid directly so that cells can be cooled more effectively than passive and conventional active cooling methods. But there is no study on the durability and stability of dielectric liquid immersing solar cells. Photon induced degradation may take place when cells operating in dielectric liquid for a long time. In order to apply this new method to practice, the systems durability and stability must be studied. Accelerated ultraviolet test and high temperature (85℃) test were done on three dielectric liquids (such as silicon oil, glycerol) to test the liquids durability. Fourier transform infrared spectra indicate their molecule structures did not change, but some physical changes have happened.
Yiping Wang Zhiying Zhang Li Zhu Lijun Han Qunwu Huang Zhenlei Fang
School of Chemical Engineering and Technology Tianjin University Tianjin 300072 P.R.China School of Architecture Tianjin University Tianjin 300072 P.R.China
国际会议
2007世界太阳能大会(Proceedings of ISES Solar World Congress 2007)
北京
英文
2007-09-18（万方平台首次上网日期，不代表论文的发表时间）