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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-421-2

International Heat Transfer Conference 15
August, 10-15, 2014, Kyoto, Japan

Development of Concentrating System of Dye-sensitized Solar Cell with a Heat Exchanger

Get access (open in a dialog) DOI: 10.1615/IHTC15.sol.008072
pages 7469-7475

要約

Dye-sensitized Solar Cell (DSSC) is evaluated to be low-cost technology as the manufacturing DSSC is more inexpensive 5 times than producing Silicon Solar Cell. Currently, the best conversion efficiency is 11%, the tile-shaped modules are being produced in STI, Austria. Moreover the efficiency to increase over 15% and the process of fabricating DSSC for commercialization are attempted to be highly researched. To use concentrator system in Solar cell is required to reduce the price for electronic energy produced. Concentrator is able to decrease price at the full device by reducing places to operate solar cell. If the solar cell concentrated to high density (over 1000suns) is used, the price is possible to be considerably lowered per a watt. It will be cost-effective means to recover the cost of concentrating solar system. Conversion efficiency of solar cell is the key point for reducing price to manufacture products. The efficiency is expected to be improved by using the concentrator system, because lost energy density of concentrator system increase in proportion to quantity of concentration. In this study, the conversion efficiency is expected to be improved by concentrating light which has high energy density through the concentrating lens. In this process, DSSC will emit heat at high temperature and make defection like evaporation and leaks of an electrolyte. To protect this problem, we have discussed the way to ensure steady cells by developing the system available to return the heat of the high temperature. Cell of temperature was maintained 30????C at 1sun (100mW/cm2) condition, Concentrated light density was 2.6W/cm2 that is about 26suns. The cell is measured for 480 minutes because it is generally running for 8 hours during a day. On average, the conversion efficiency of the cell is 13.24%. Finally we conform that the solar cell using concentration system with a heat exchange is available to steady and highly improve the conversion efficiency.