Calculation of the Energy Conversion Efficiency of a Stacked-Screen Regenerator using Thermoacoustic Theory

Abstract

A simple numerical method to calculate the performance of a stacked-screen regenerator is proposed. The method is based on a well-known thermoacoustic theory but uses some empirical factors that were determined by the measurement of viscous losses in stacked-screen regenerators. The efficiency of the energy conversion in a stacked-screen regenerator is calculated using the method and compared with the experimental results. Furthermore,a comparison of the numerically calculated efficiencies in stack-screen and tube-array regenerators is performed.