Experimental Investigation on the Thermoacoustic Effect in Easily Accessible Porous Materials

Jakub Kajurek and Artur Rusowicz
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Jakub Kajurek: Institute of Heat Engineering, Warsaw University of Technology, ul. Nowowiejska 21/25, 00-665 Warszawa, Poland
Artur Rusowicz: Institute of Heat Engineering, Warsaw University of Technology, ul. Nowowiejska 21/25, 00-665 Warszawa, Poland

Energies, 2020, vol. 14, issue 1, 1-10

Abstract: Thermoacoustic devices are the systems which use acoustic power to transport heat through a stack in a resonance tube. The stack is one of the most important parts of the thermoacoustic systems. It can have different geometries, like parallel plates, circular pores, or pin arrays. However, the fabrication of stacks with regular geometries is sometimes impractical due to material and assembly costs. These problems can be solved by using stack fabricated with random and easily accessible porous materials. In this paper an experimental investigation on the thermoacoustic effect in easily accessible porous materials is presented. The measurements with the stacks were made in a standing wave device filled with air at atmospheric pressure. The reported results confirm that some of the materials with high porosity can be an alternative to a traditional stack geometries and materials.

Keywords: thermoacoustics; thermoacoustic refrigerator; stack (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
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