| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2008: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Research Abstract |
In this study, experiments on the hydrogen production by wet grinding of aluminum through planetary ball mill were carried out with 100 alumina balls. Fine grinding speed and time in this work were fixed at 200 rpm and 1 hour, respectively. 280 ml of hydrogen gas was generated through the wet grinding with 3 g of aluminum powder in 100 ml of water. It is considered that surface temperature of aluminum increases from attrition and percussion with alumina medium, and water reacts with the surface of aluminum whose surface temperature reaches more than 100 degree to generate hydrogen gas. 280 ml of hydrogen could be obtained for 1 hour by electric power from window power generator with window speed of 5.27 m/s. Comparing former hydrogen generation method with water electrolysis (electric power : 3 W, generation time : 18.7 minutes, volume of hydrogen : 280 ml), it is found that 0.380 g of CO_2 could be reduced.
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