| Project/Area Number |
05558061
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| Research Category |
Grant-in-Aid for Developmental Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
エネルギー学一般・原子力学
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| Research Institution | The University of Tokyo |
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Principal Investigator |
OKAMOTO Tsuguo THE UNIVERSITY OF TOKYO THE FACULTY OF AGRICULTURE,PROFESSOR, 農学部, 教授 (40031215)
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| Co-Investigator(Kenkyū-buntansha) |
YAMAMOTO Hiroaki KOBE UNIVERSITY THE FACULTY OF AGRICULTURE,PROFESSOR, 農学部, 教授 (80031194)
TORII Toru THE UNIVERSITY OF TOKYO THE FACULTY OF AGRICULTURE,INSTRUCTOR, 農学部, 助手 (60172227)
KITANI Osamu THE UNIVERSITY OF TOKYO,PROFESSOR EMERITUS, 名誉教授 (00024539)
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| Project Period (FY) |
1993 – 1995
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| Project Status |
Completed (Fiscal Year 1995)
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| Budget Amount *help |
¥6,800,000 (Direct Cost: ¥6,800,000)
Fiscal Year 1995: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1994: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1993: ¥4,800,000 (Direct Cost: ¥4,800,000)
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| Keywords | Stirling engine / Regenerator / Displacer / Bellowsphragm / Regenerator matrix / Biomass / Working fluid / Mechanical friction / バイオマス燃料 |
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| Research Abstract |
A Stirling engine which has a number of merits such as a wide choice of various fuels, clean exhaust, small noise, low vibration, etc.has been studied. The aim of this study is the development of farm usable Stirling engines which are simple and free from maintenance. The fundamental technical problems in the development of a Stirling engine are how to provent the working gas leakage and to reduce the mechanical friction loss.
The trial-made Stirling engine was a single acting displacer type and had a lapel type bellows power piston which is named "bellowsphragm" as a brand name and a displacement piston built-in regenerator. The lapel type bellows seal performances and the characteristics of mechanical friction were examined under the normal temperature and heating conditions. The testing results show that the gas leakage was prevented and the mechanical friction loss was reduced by using the lapel type "bellowsphragm". The cycle work was gained of 19 (J/Cycle) at the gas temperature of 400 (ﾟC) on the engine operation. The output power performances were improved in comparison with the previous trial-made engine.
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