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Experiment Research on Solar Cooker with Deflection Trough Concentrators and Heat Pipe

In this paper, a line focus solar cooker with deflection trough concentrators and heat pipe was for Tibet area successfully developed. The designed cooker met the demands of indoor use, miniaturization and improved the power and temperature of current solar cooker. It included two key parts: array of deflection trough concentrators and heat pipe. Firstly, the structure of the solar cooker was described, especially the improvement of the structure of the heat pipe. The condensing section of the heat pipe was designed to simplify the process of heat transfer, reduce the heat loss and improve the heat efficiency. Secondly, the mirror array of the deflection trough concentrators was tested experimentally. Meanwhile, the overall performance of the solar cooker was also estimated. Simultaneously, the solar radiation flux at the focal spot was improved. With the temperature of the condensing section of the heat pipe increasing, the power of the cooker was amplified. Finally, the data of the experiment was analyzed. The result showed that under the conditions of Nanjing, the power of the solar cooker was enhanced and it could reach 1200W. The temperature tested in the experiment reached the desired temperature, which maximum value was 214, so it will work well in Tibet.