| 行波热声发动机的多负载声功输出特性 |
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| 引用本文： | 孙大明,王波,肖勇,邱利民. 行波热声发动机的多负载声功输出特性[J]. 低温工程, 2007, 0(2): 6-10 |
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| 作者姓名： | 孙大明 王波 肖勇 邱利民 |
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| 作者单位： | 浙江大学制冷与低温研究所,杭州,310027;浙江大学制冷与低温研究所,杭州,310027;浙江大学制冷与低温研究所,杭州,310027;浙江大学制冷与低温研究所,杭州,310027 |
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| 基金项目： | 国家自然科学基金重点项目（50536040）,霍英东基金优选资助项目（94013）资助. |
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| 摘 要： | 为进一步提高热声发动机的声功输出能力并为驱动多负载做准备，提出了热声发动机声功的多路引出方案。实验中以氮气为工质，工作压力为2．4MPa，在热声发动机环路压比稳定在1．20的情况下，从环路声容和谐振管处同时引出声功，获得了389．95W的最大声功，11．3％的最大声功输出效率以及16．0％的最大声功输出炯效率，这比单独从环路引出的最大声功和效率分别提高了51．4％，24．6％以及19．4％。
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| 关 键 词： | 热声 声功 变负载法 输出特性 |
| 文章编号： | 1000-6516（2007）02-0006-05 |
| 收稿时间： | 2006-08-15 |
| 修稿时间： | 2006-08-152006-10-17 |
Investigation on output characteristics of traveling wave thermoacoustic engine with multiple loads |
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| Sun Daming,Wang Bo,Xiao Yong,Qiu Limin. Investigation on output characteristics of traveling wave thermoacoustic engine with multiple loads[J]. Cryogenics, 2007, 0(2): 6-10 |
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| Authors: | Sun Daming Wang Bo Xiao Yong Qiu Limin |
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| Affiliation: | Institute of Refrigeration and Cryogenic Engineering, Hangzhou 310027, China |
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| Abstract: | In order to increase the acoustic power output of thermoacoustic engine and prepare for multiple loads, multi-output method was proposed with which acoustic power with different qualities could be obtained simultaneously. With nitrogen of 2.4 MPa as working gas and pressure ratio near the compliance of 1.20, acoustic power was got from the compliance and the resonator of the thermoacoustic engine Simultaneously. The maximum output power, thermal efficiency and exergy efficiency reached 389.95 W, 11.3% and 16.0%, which increased by 51.4%, 24.6% and 19.4% respectively than those with single-output method. It provides reference for making gradational use of acoustic energy of thermoacoustic engine and driving multiple loads.. |
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| Keywords: | thermoacoustic acoustic power variable-load method output characteristic |
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