Design and experimental evaluation of a travelling wave thermoacoustic engine

被引：6

作者：

Saechan, Patcharin ^{[1
]}

Dhuchakallaya, Isares ^{[2
]}

机构：

[1] King Mongkuts Univ Technol North Bangkok, Fac Engn, Dept Mech & Aerosp Engn, Bangkok 10800, Thailand

[2] Thammasat Univ, Fac Engn, Dept Mech Engn, Klongluang 12120, Pathumthani, Thailand

来源：

ENERGY REPORTS | 2020年 / 6卷 / 06期

关键词：

Looped-tube; Stub; Thermoacoustic engine; Travelling wave; REFRIGERATOR DRIVEN; PERFORMANCE;

D O I：

10.1016/j.egyr.2020.11.002

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

In a thermoacoustic engine, acoustic impedance plays a key role to improve the system performance. A matching stub is a component which can be applied to adjust the acoustic impedance. In this study, the effect of locations and lengths of the stub was investigated. The travelling wave engine was designed in looped-tube configuration operating at the frequency about 65 Hz. Air was applied as a working medium, operating at atmospheric pressure. The simulations and experiments were carried out to validate the function of the stub. With a variation of the stub length and its position along the looped-tube, the acoustic impedance can be fine-tuned to obtain the travelling wave phasing in the thermoacoustic core and maximum generated acoustic power. (C) 2020 The Authors. Published by Elsevier Ltd.

引用

页码：1456 / 1461

页数：6

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