熱化學循環製氫系統效益分析

Performance Analysis of Hydrogen Production by Thermochemical Cycle

林建榮(Chien-Jung Lin)

指導教授 ： 莊嘉琛

國立臺北科技大學/機電學院/能源與冷凍空調工程系碩士班/碩士(2008年)

https://doi.org/10.6841/NTUT.2008.00110

摘要

太陽能UT-3型熱化學循環運作方式為接收器在白天接收熱源運作，而熱貯存系統在夜晚進行運作，並於絕熱設備下操作，而熱交換器供給或吸收欲反應的能源是可忽略的，且在連續性運轉下，絕熱的UT-3型太陽能製程有更高的效率與較少的成本支出。設備的規模較小，而絕熱的設備可以使用一般材料製造。它的反應生成率比無絕熱設備的循環性運作高於三倍。因此，太陽能製氫成本與無絕熱設備的循環性製程相比可期望稍低。
而碘—硫熱化學製氫循環因為連續性操作，可使得成本降低，而溶液中增加I2濃度使得分離特性變得較好，且蒸餾塔內減少I¬2溶液流率也減少了液態分離器內的I2飼入蒸餾塔的流率；Bunsen反應器內未反應的SO2溢出與HIx蒸餾塔出口內溶液於耐受度下的流率變化問題需加以解決。
故本文內容在探討相同反射場面積比較下，台灣各區域為例，分別研究在台北地區UT-3/SI製氫總COP為0.34與0.24，台中地區UT-3/SI製氫總COP為0.41與0.3，以及高雄地區UT-3/SI製氫總COP為0.43與0.32，進一步比較結果瞭解為UT-3熱化學製氫廠設立於高雄地區之製氫效果較佳。

關鍵字

太陽能 ； 熱化學循環 ； 製氫效率

並列摘要

The products, disintegrated from H2O during 900℃ by chemical processes, can be recycled through chemical reaction. Due to the high react temperature, porcelain material is usually utilized in the reactor. The solar energy manufacturing can be applied in thermal disintegration, vaporization, cracking, recombination or thermochemical cycle process.
The mechanism of solar energy UT-3 thermochemical cycle is that heat energy is absorbed by heat receptor during daytime and heat reservoir systemoperates at night under thermal-insulated system. Hydrogen production by Iodine-sulfur thermochemical cycle is a continuous operation. It can reach the cost-down. Comparing the flow rate of I2 and HI solution to realize the how the solution affect the cycling system.The COP of UT-3/SI are 0.34 and 0.24 in Taipei, Taiwan., 0.41 and 0.3 in Taichung, Taiwan and 0.43and 0.32 in Kaohsiung,Taiwan under the same reflective area.The result is UT-3 thermochemical cycle-produce hydrogen factor in Kaohsiung has better efficacy.

並列關鍵字

Solar Energy ； Thermochemical Cycle ； Hydrogen Production Efficiency

參考文獻

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