著者
畠沢 政保 杉田 洋 小川 孝廣 瀬尾 宜時
出版者
The Japan Society of Mechanical Engineers
雑誌
日本機械学会論文集 B編 (ISSN:03875016)
巻号頁・発行日
vol.70, no.689, pp.292-299, 2004
被引用文献数
31

A new type of thermoacoustic sound wave generator driven with the waste heat of a 4 cycle automobile gasoline engine is described. The exhaust-pipe connected sound wave generator, in which the hot heat exchanger is set in the exhaust pipe in order to recover the waste heat of exhaust gas, is proposed. A temperature of 780°C of exhaust gas in the exhaust is observed. In a conventional thermoacoustic sound wave generator, sound waves originate at a temperature of the hot heat exchanger, <I>T<SUB>H</SUB></I>, of 200-300°C and become sufficient at 700°C. It is confirmed that the new generator generates sufficient sound waves and its performance is almost equal to that of the electric heater driven generator at a thermal input of 300 W, which corresponds to slightly more than 1% of the heat quantity of exhaust gas provided under the condition that the number of engine revolutions is 2 600 r.p.m. and that the throttle opening is 35%.

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