4-1-1 太陽エネルギーを利用した金属酸化反応による水素生成

抄録

In this study, sunlight is converted into thermal energy by converging sunlight to one point by using Fresnel lens. The heat is used to evaporate Zn, superheated steam and Zn steam is used as a reaction medium perform oxidation reaction and hydrogen is generated. Thereafter hydrogen is recovered by a sampling bag connected to the downstream portion of the apparatus. Furthermore, we calculate the thermal energy stored in hydrogen by measuring the hydrogen concentration and aim to evaluate the conversion efficiency of energy in this experimental apparatus. The result showed that we acquired 830mL of hydrogen for 2320mL of gas. The energy conversion efficiency was 0.689%.