- 學位論文
整合奈米氧化銅薄膜與DSSCs於熱電產生器上之應用研究
A study on Application of Nano CuO thin films with DSSCs in thermoelectric power generator
摘要
本論文提出一種新的光熱電模組，組合染料敏化太陽能電池與熱電產生器並使用熱傳薄膜披覆在熱電材料表面可達到經由回收外部廢熱來產生電力，比單純敏化染料太陽能電所產生的功率增加了2.35 %。使用奈米氧化銅薄膜來當作媒介來傳遞太陽能電池上之廢熱到熱電產生器上，可以提升熱通量和較多的工作輸出。將奈米氧化銅利用電泳法沉積在厚度0.04 mm的紅銅板上，可沉積1~23 μm厚的奈米氧化銅薄膜，並將薄膜樣本貼附於熱電晶片上。在奈米氧化銅薄膜為微米等級時且成形於熱電晶片上，熱量能夠更快速的經由薄膜傳遞到熱電晶片上，這將會導致更高的溫度梯度在吸收和散出溫度上，結果來說能貼附以紅銅板為基材之氧化銅薄膜能提高熱電產生器10 %的效率。經過量測分析後可發現本論文所提出之新的光熱電模組在模擬光源強度1000 mW/cm2下共可產生4.95 mW/cm2之功率輸出。
並列摘要
The aim of this paper was to investigate a solar-thermoelectric modules concept termed “Application of Nano CuO thin films with DSSCs in thermoelectric power generator” for power generation using solar energy, and uses the recycled external exhaustheat to generate electric power, further enhancing the thermoelectric conversion efficiency of thermoelectrical generator (TEG) effectively. It can enhance the overall output by 2.35 %. Nano CuO thin films like medium which can transfer waste heat from DSSCs to hot side of TEG. By using electrophoresis deposition, the self-prepared CuO nanofluid with the properties of high suspension stability and good dispersion is deposited on an cu plate at a thickness of 0.04 mm. The coated CuO thinfilm is at a maximum thickness of 23 μm and sticked on the surface of TEG.. When the recycled external exhaustheat is conducted to the CuO thinfilm, heat can be more rapidly conducted to thermoelectrical material through the film, giving higher temperature gradient to the two ends of the thermoelectrical material. Furthermore, the heat transfer of the thermoelectrical generator can be effectively enhanced. Experimental results shows that the coating CuO nanofilm on the surface of TEG can enhance the overall heat conduction and thermoelectrical conversion efficiency of thermoelectrical generator by 10 %. Besides, this paper also analyzes the process parameters and the properties of the solar- thermoelectric modules coating thin film to acquire a film structure with the best thermoelectrical conversion efficiency. It was found that this solar-thermoelectric modules can generate abount 4.95 mW/cm2 under solar radiation intensity of about 1000 W/m2.