2006 Fiscal Year Final Research Report Summary
Advanced Distributed Energy Systems based on Atmospheric Pressure Turbine
| Project/Area Number |
16360481
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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 | 一般 |
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| Research Field |
Energy engineering
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| Research Institution | Osaka Prefecture University. |
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Principal Investigator |
TSUJIKAWA Yoshiharu Osaka Prefecture University, Graduate School of Engineering, Division of Aerospace & Marine System Engineering, Professor, 工学研究科, 教授 (70112539)
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| Co-Investigator(Kenkyū-buntansha) |
SUNADA Shigeru Osaka Prefecture University, Graduate School of Engineering, Division of Aerospace & Marine System Engineering, Associate Professor, 工学研究科, 助教授 (70343415)
KANEKO Kenichi Osaka Prefecture University, Graduate School of Engineering, Division of Aerospace & Marine System Engineering, Instructor, 工学研究科, 助手 (60285301)
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| Project Period (FY) |
2004 – 2006
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| Keywords | Distributed Energy System / Atmospheric Pressure Turbine / High-temperature Fuel Cell / Solid Oxide Fuel Cell / Molten Carbonate Fuel Cell / Micro-channel Heat Exchanger / Hypersonic Propulsion / Utilization of LNG Cold |
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| Research Abstract |
In order to achieve highly effective hybrid systems based on the atmospheric pressure turbine, the various systems are proposed and the performances are analyzed. As very high heat exchanger effectiveness is expected for the cooler and intercooler, and the condensation of moisture in the combustion gas determine the efficiency of those systems, the influence of these phenomena must be clarified.
First, a detailed analysis of the hybrid system of the atmospheric pressure turbine (APT) based on the inverted Brayton cycle and MCFC (molten carbonate fuel cell) was executed. The natural gas as the fuel was reformed by the external reforming system, and the indirect, internal reformer. The possibility of the derivation of this concept to a hypersonic aircraft engine was also discussed. As a result, the total thermal efficiency (electric efficiency) based on an APT/MCFC hybrid power system can be expected more than 65 percent. And the effects of parameters such as reactive temperature, the output ratio, the fuel utilization factor and the reforming temperatures were clarified.
Next, as the influence of condensation of moisture in the combustion gas in the cooler and intercooler determine the efficiency, these phenomena was experimentally cleared. An ultra-micro experimental model of the cooler is designed and produced with the results by numerical analysis. It was found that the multilayer spiral type micro-channels for the cooler have been effective, and could be applied to the APT. And the combustor which worked as the high temperature gas source was made for aiming at ultra-micro APT, and the performance was also measured.
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Research Products
(10 results)
