2013 Fiscal Year Final Research Report
Thermoacoustic engine with a thermal efficiency of 30% at heat source temperature of 300 degree celsius
| Project/Area Number |
24760174
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Thermal engineering
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| Research Institution | Tokai University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 熱音響現象 / 非平衡熱力学 / 自励振動 / 熱効率 |
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| Research Abstract |
We design and build a cascade traveling wave thermoacoustic amplifier, in which there is not only the traveling wave phasing between pressure and velocity oscillations, but also there is specific acoustic impedance which is greater than that freely traveling acoustic waves and that can be achieved for all the regenerators aligned in series. In order to realize such acoustic fields, the transfer matrix for the unit component consisting of a differentially heated regenerator and adjacent short resonators is analyzed, and the eigenvector and the eigenvalue are numerically determined. As a result, the maximum second law efficiency of the regenerator reaches 63.9% in the present model.
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Research Products
(20 results)
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[Journal Article]2013
Author(s)
長谷川真也
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Journal Title
熱音響発電の基礎,日本エネルギー学会誌
Volume: Vol.92,No.11
Pages: 1111-1116
Peer Reviewed
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