Novel 4-Stage Traveling Wave Thermoacoustic Power Generator
Novel 4-Stage Traveling Wave Thermoacoustic Power Generator
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DOI：
10.1115/fedsm-icnmm2010-30527
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
K. Blok
中科院分区：
文献类型：
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作者：
K. Blok
利用太阳能真空管集热器的低温差或70-200°C范围内的废热似乎是热声系统最有前途和最具商业意义的应用领域。最近，一种新型的四级“自匹配”行波发动机被开发和试验。除了低的声学损失和紧凑性，由于行波反馈，每一级的所有组件都是相同的，这从(大规模)生产的角度来看是有利的。基于这一概念，一台100千瓦的热声功率(TAP)发电机正在建设中。该项目是在荷兰SBIR计划第二阶段的框架内进行的。100千瓦特的水龙头将安装在荷兰的一家造纸厂，用于将150°C的纸张干燥过程中的部分烟气转化为电力。该项目的重点是生产和成本方面，将每千瓦的投资降低到与ORC竞争的水平。在成功完成这一试点后，计划于2012年开始商业化和交付100kW至1兆瓦的热声发电机，用于工业废热回收，并作为热电联产系统的附加设备。四级行波发动机的相同概念也被应用于为发展中国家提供的常压热声烹饪设备，该设备在热水旁边产生高达50W的电力。将介绍这些项目的细节、正在进行的工作和实验结果。版权所有©2010 by ASME
Utilizing low temperature differences from solar vacuum tube collectors or waste heat in the range 70–200 °C seems to be the most promising and commercial interesting field of applications for thermoacoustic systems. Recently a novel 4-stage “self matching” traveling wave engine is developed and tested. Beside the low acoustic loss and compactness, due to traveling wave feedback, all components per stage are identical which is beneficial from (mass) production point of view. Based on this concept a 100 kWT thermoacoustic power (TAP) generator is under construction. This project is carried out in the framework of phase two of the Dutch SBIR program. The 100 kWT TAP will be installed at a paper manufacturing plant in the Netherlands for converting part of the flue gas at 150°C from the paper drying process into electricity. Emphasis in this project is on production and cost aspects lowering the investment per kWe to a level competitive to ORC’s. After successful completion of this pilot, commercialization and delivery of 100kW to 1 MW thermoacoustic power generators for industrial waste heat recovery and as add-on for CHP systems is planned to begin in 2012. The same concept of the 4-stage traveling wave engine is also implemented in an atmospheric pressure operated thermoacoustic cooking device for developing countries which generate beside hot water up to 50 W electricity. Details, ongoing work and experimental results of these projects will be presented.Copyright © 2010 by ASME