A method to optimize the regenerator parameters of a thermoacoustic engine. (September 2017)

• Record Type: Journal Article
• Authors: Napolitano, Marialuisa; Dragonetti, Raffaele; Romano, Rosario
• Is Part Of: Energy procedia. Volume 126(2017)
• Page Start: 525
• Page End: 532
• Publication Date: 2017-09
• Subjects: Travelling-wave thermoacoustic engine -- regenerator -- optimization procedure; Power resources -- Congresses; Power resources -- Periodicals; Power resources; Conference proceedings; Periodicals; 333.7905
• DOI: 10.1016/j.egypro.2017.08.244
• Languages: English
• ISSNs: 1876-6102

Abstract

Abstract: Thermoacoustic engines are devices suitable to convert heat into acoustic energy and viceversa. They are basically composed with a porous medium and two heat exchangers inserted into a resonator or looped tube. Depending on the phase shift between the sound pressure and the particle velocity of the working fluid, two categories of engines can be realized: standing-wave or travelling-wave devices. Thermodynamic performance of thermoacoustic engines strongly depends on the structural properties of the porous material and the geometric features of the device. In a previous work the authors developed a procedure for optimizing the properties described above to obtain, for a standing-wave device, the maximum acoustic power, given fixed boundary conditions. In this work, the above-mentioned procedure has been extended also for a traveling-wave engine.