| Project/Area Number |
10555069
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
Thermal engineering
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| Research Institution | TOKYO METROPOLITAN INSTITUTE OF TECHNOLOGY |
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Principal Investigator |
YUASA Saburo TOKYO METROPOLITAN INSTITUTE OF TECHNOLOGY, ENGNIEERING, PROFESSOR, 工学部, 教授 (60123147)
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| Co-Investigator(Kenkyū-buntansha) |
GOTO Nobuo METROPOLITAN INSTITUTE OF TECHNOLOGY, ENGNIEERING/ASISTANT, 工学部, 助手 (50099363)
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| Project Period (FY) |
1998 – 2001
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| Project Status |
Completed (Fiscal Year 2001)
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| Budget Amount *help |
¥10,300,000 (Direct Cost: ¥10,300,000)
Fiscal Year 2001: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2000: ¥4,000,000 (Direct Cost: ¥4,000,000)
Fiscal Year 1999: ¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 1998: ¥2,800,000 (Direct Cost: ¥2,800,000)
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| Keywords | Hydrogen Gas Turbine / Rich Premixed Flame / Lean Premixed Combustor / Hydrogen Storage Alloy / 過濃予混合火炎 / 低NOx |
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| Research Abstract |
The final purpose of this project is to develop a hydrogen-fueled micro gas turbine with a lean premixed combustor using a high-temperature metal hydride feed system. During the period of this project, 1998-2001, the main results obtained are as follows:
(1) Flash-back of a hydrogen combustor using lean premixed flames occurred frequently at low equivalence ratios, and at higher equivalence ratios combustion driven oscillation of the hydrogen combustor occurred. To develop a hydrogen combustor with extremely low Nox emissions, the two-staged combustion, using a rich premixed flame followed by a lean well-stirred mixing and combustion with secondary air, was theoretically shown to be a suitable technique.
(2) The high-temperature hydrogen storage alloy Mg2Ni has sufficient thermo-chemical properties concerning hydrogen discharge rate, thermal conductivity and hydrogen storage ability. The gas turbine system using an Mg2Ni hydride feed system operates with a practical level performance
3) A prototype combustor using the two-staged combustion was built and a hydrogen feed system with Mg2Ni was developed. Since the combustion concept of a lean premixed combustor was forced to change by the result 1 and hydrogen was very easy to leak from the hydride reservoir at high temperature and pressure conditions, we spent a long term to cope the problems. We continue to develop a two-staged low Nox combustor and to construct a hydrogen-fueled micro gas turbine system using a high-temperature metal hydride feed apparatus.
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