MEMS-Based Fuel Reformer with Suspended Membrane Structure

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概要

• 論文の詳細を見る

• We report a MEMS-based fuel reformer for supplying hydrogen to micro-fuel cells for portable applications. A combustor and a reforming chamber are fabricated at either side of a suspended membrane structure. This design is used to improve the overall thermal efficiency, which is a critical issue to realize a micro-fuel reformer. The suspended membrane structure design provided good thermal isolation. The micro-heaters consumed 0.97W to maintain the reaction zone of the MEMS-based fuel reformer at 200°C, but further power saving is necessary by improving design and fabrication. The conversion rate of methanol to hydrogen was about 19% at 180°C by using evaporated copper as a reforming catalyst. The catalytic combustion of hydrogen started without any assistance of micro-heaters. By feeding the fuel mixture of an equivalence ratio of 0.35, the temperature of the suspended membrane structure was maintained stable at 100°C with a combustion efficiency of 30%. In future works, we will test a micro-fuel reformer by using a micro-combustor to supply heat.

• 社団法人 電気学会の論文
• 2003-09-01

著者

• Esashi Masayoshi

  New Industry Creation Hatchery Center (niche) Tohoku University

• Chang Kuei-sung

  Department Of Mechatronics And Precision Engineering Tohoku University

• Tanaka Shuji

  Department Of Mechatronics And Precision Engineering Tohoku University

• Tanaka Shuji

  Department Of Electronics Faculty Of Engineering Fukuoka Institute Of Technology

• Tanaka Shuji

  Department of Electronic Materials Engineering, Fukuoka Institute of Technology,

• TANAKA Shuji

  Department of Chemistry, Faculty of Science, Kyushu University

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