Experimental investigations of the performance of a thermoacoustic electricity generator
Experimental investigations of the performance of a thermoacoustic electricity generator
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DOI：
10.1051/e3sconf/201911600025
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发表时间：
2019-09
影响因子：
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通讯作者：
Ahmed Hamood;A. Jaworski
中科院分区：
文献类型：
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作者：
Ahmed Hamood;A. Jaworski
本文介绍了一种两级热声发电机的实验研究，该发电机能够将内燃机排气温度下的热量转化为有用的电能。新的配置是一个波长，由两个相同的阶段。相同的级将具有类似幅度的异相声波，这允许耦合线性交流发电机以推挽模式运行。实验装置长16.1 m，运行频率为54.7 Hz。工作介质是28巴的氦气。最大发电功率为73.3 W，热电效率为5.64%。研究了负载电阻、平均压力和加热功率等工作参数。
This paper presents the experimental investigation of a two-stage thermoacoustic electricity generator able to convert heat at the temperature of the exhaust gases of an internal combustion into useful electricity. The novel configuration is one wavelength and consists of two identical stages. The identical stages will have out of phase acoustic wave at similar amplitudes which allows coupling a linear alternator to run in push-pull mode. The experimental set-up is 16.1 m long and runs at 54.7 Hz. The working medium is helium at 28 bar. The maximum generated electric power is 73.3 W at 5.64% thermal-to-electric efficiency. The working parameters including load resistance, mean pressure and heating power were investigated.