Thermoacoustic phenomena generated inadvertently during combustion, and those
produced by heating and cooling material to generate a temperature gradient, have mostly …

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 …

ABSTRACT A thermo-acoustic engine is a device converting thermal energy into high
amplitude acoustic waves that can be harvested, for example, to obtain electricity. The core …

Assessing the thermoacoustic performance of designed combustors, with a focus on the
stability quality factor, is crucial. Thermoacoustic instability in combustion appliances arises …

A passive loudspeaker mounted in a duct acts as a reciprocal scatterer for plane waves
impinging on either of its sides. However, the reciprocity can be broken by means of an …

Thermoacoustic instability poses a significant challenge in the development of combustion
appliances, where the lack of specific information on upstream and downstream acoustic …

In this study, we designed and built a prototype of a cascade thermoacoustic amplifier that
connects multiple regenerators while satisfying high acoustic impedance at all regenerator …

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 …

This paper deals with the prediction of the frequency and the amplitude of self-sustained
oscillations generated in thermoacoustic prime movers, which are compared to …

Abstract Description and analysis of acoustic waves in ducts with a region containing
temperature-inhomogeneous fluid represent a significant problem of scientific and practical …