Multi-method modeling to predict the onset conditions and resonance of the piezo coupled thermoacoustic engine.

This article seeks to perform a combination of methodologies to fully model and evaluate the rudimentary performance of a thermoacoustic engine integrated with a piezoelectric energy harvester (TAP). First, the root locus method was employed to determine the critical design operating values of the thermoacoustic engine. Later, a lumped parameter model was developed as a matlab Simulink program to calculate the transient temperature and pressure responses of the thermoacoustic engine.