本研究從概念上設計了一種以多孔碳紙作為基板的甲醇-水蒸氣重組反應器，使用在碳紙上成長的CuO/ZnO觸媒，以太陽光作為熱源，進行甲醇-水蒸氣重組反應。研究中設計了碳紙的吸水與蒸發過程的實驗，將實驗分為三個階段討論。吸水實驗為第一階段，蒸發實驗分為有液態水穩定流入碳紙的第二階段和液態水不再補充進入碳紙的第三階段。量測整個實驗過程中的碳紙聚光區溫度和整張碳紙的無因次含水量隨時間的變化。經由數值模擬對吸水實驗與蒸發實驗進行了分析，了解其中的熱流傳遞與質量傳遞現象。利用實驗數據及參考文獻中的方法計算多孔材料的有效擴散係數和質傳係數，代入到模擬中計算水在碳紙中的流動與蒸發。研究所得模擬結果和實驗結果合理相符。最後對產氫實驗使用模擬進行了理論上的分析，預測氫氣的產量與反應速率，以及一氧化碳的選擇性，完成評估此概念型太陽熱能多孔介質甲醇-水蒸氣重組器的效能。

In this study, the-conceptual design for a porous media solarthermal steam-methanol reformer was investigated. Carbon fiber paper based CuO/ZnO catalytic reactor is used to absorb and convert solar energy to hydrogen energy with reforming reaction. In the experiment section, the water transport and evaporation process in the carbon paper is designed. The experiment is divided into three stages: (1) The water absorption stage, (2) the evaporation stage in which the liquid water flows into the carbon paper steadily and (3) the evaporation stage that the liquid water is no-longer supplemented into the carbon paper. During the experiment, the temperature of the carbon paper and the dimensionless water content of the carbon paper were measured with respect to time. The water absorption experiment and evaporation in the carbon fiber paper were analyzed numerically to further understand the heat and mass transport phenomena. The effective mass transfer coefficients of the porous material were calculated using the experimental data and the methods from the references, and were substituted into the simulation to calculate the flow and evaporation of water in the carbon paper. The simulation results obtained in the study are in reasonable agreement with the experimental results. Finally, simulation is conducted to predict the hydrogen production and reaction rate, as well as the selectivity of carbon monoxide in this solarthermal porous reformer. The efficiency of this conceptual solar thermal porous media methanol-steam reformer is then evaluated and discussed.

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