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Experimental investigation on the onset and damping behavior of the oscillation in a thermoacoustic prime mover

✍ Scribed by G.B Chen; T Jin

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 185 KB
Volume: 39
Category: Article
ISSN: 0011-2275
DOI: 10.1016/s0011-2275(99)00099-5

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✦ Synopsis

Experiments have been made on the onset and damping behavior of the oscillation in a thermoacoustic prime mover with nitrogen as the working ¯uids. In contrast to the traditions indicating that the damping point coincide with the onset one, we ®nd lags between the onset temperature and the damping temperature in the thermoacoustic oscillation. A hysteretic loop, due to the temperature dierence, is recognized for the ®rst time. It is con®rmed by all results of the nitrogen of 0.4±2.4 MPa. Some interesting phenomena observed in the experiments are also presented.

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