An acoustical pump capable of significantly increasing pressure ratio of thermoacoustic heat engines

被引：11

作者：

Luo, EC ^{[1
]}

Hu, JY

Dai, W

Chen, YY

机构：

[1] Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100080, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

来源：

CHINESE SCIENCE BULLETIN | 2006年 / 51卷 / 08期

基金：

中国国家自然科学基金;

关键词：

thermoacoustic engine; pressure ratio; acoustic pump;

D O I：

10.1007/s11434-006-1014-7

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Pressure ratio is one of the important parameters for evaluating a thermoacoustic heat engine. A so-called acoustical pump, which is capable of significantly increasing pressure ratio of a thermoacoustic heat engine, is proposed. Its operating principle is given. Also, a verification experiment is done with nitrogen gas in the energy-focused thermoacoustic heat engine, showing that the pressure ratio increased from 1.25 to 1.47.

引用

页码：1014 / 1016

页数：3

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