https://doi.org/10.1051/epjconf/20146702086
Investigation of a traveling wave thermoacoustic engine in a looped-tube
1 Technical University of Liberec, Department of Power Engineering Equipment, Studentská 2 461 17, Czech Republic
2 National Taiwan University, Institute of Applied Mechanics, No.1, Sec. 4, Roosevelt Rd., Taipei City 106, Taiwan
a Corresponding author: petr.novotny@outlook.com
Published online: 25 March 2014
In the present paper, four configurations of a traveling wave thermoacoustic engine in a looped tube were investigated by means of theoretical calculations and experiments. The effect of natural heat convection on their functionality was observed. Acoustic intensity was measured using a dual two microphone method. The stack was designed with few times higher dimension of channels than thermal penetration depth, due to the stack should not be called regenerator. Pressure distribution in the resonator was measured, and a good agreement with theoretical calculations from DELTAEC has been demonstrated.
© Owned by the authors, published by EDP Sciences, 2014
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