Open-cell foams for thermoacoustic applications

Marialuisa Napolitano, Rosario Romano and Raffaele Dragonetti

Energy, 2017, vol. 138, issue C, 147-156

Abstract: In this work the thermoacoustic performance of a stack realized with open-cell foam is analysed. Starting from the elementary cell and its strut parameters the pore structure has been investigated to improve the power conversion inside a standing-wave thermoacoustic engine. The so called “Johnson-Champoux-Allard” model is used for this scope. Results are compared with those provided by ordinary stack realized with straight pores whose cross-sections have regular shapes (i.e. circular, parallel plate). Since thermoacoustic performance is strongly affected by stack properties (such as its length, its porosity, the geometry, the shape of its pores, the operating frequency as well as the type of material), an optimization procedure has been used to optimize the thermoacoustic engine performance for the same working conditions (thermal power provided by the heat exchangers and the related temperatures).

Keywords: Open-cell foams; Stack; Standing-wave; Thermoacoustic engines; Strut parameters (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:138:y:2017:i:c:p:147-156

DOI: 10.1016/j.energy.2017.07.042

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