| Project/Area Number |
25420916
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Energy engineering
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| Research Institution | Akita University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
OKAWA Hirokazu 秋田大学, 大学院工学資源学研究科, 講師 (00375221)
MURAOKA Mikio 秋田大学, 大学院工学資源学研究科, 教授 (50190872)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2013: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | メタンハイドレート / ガスハイドレート / 超音波 / ピエゾ振動子 / 生成分解 / ハイドレート賦存層 / 生産試験 / 生成 / 分解 / メタンハイドレート賦存層 |
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| Outline of Final Research Achievements |
Methane hydrate is expected as alternative energy resource, and the microwave irradiation is considered effective accelerating decomposition during production. This study has investigated the characteristics of methane hydrate formation and decomposition with experimentally forming massive and sand pore filling hydrates by using R-11, clarified decomposition characteristics of the massive hydrate and sand pore filling hydrate with microwave irradiation, and evaluated its contribution to enhance decomposition efficiency for sand pore filling hydrate in a subsurface natural condition. An exothermic reaction is observed at the time of decomposition, and the formation and decomposition efficiency for sand pore filling hydrate are higher than those of massive hydrate. Lower frequency of microwave is more effective than higher frequency in decomposition efficiency, and is effective for pore filling hydrate of sandy layers in such as Nankai Trough with 60-80% hydrate saturation in pore space.
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