The optimal design of thermoacoustic devices is often hindered by computationally expensive simulations. To address this, this study presents a computationally efficient steady-state analysis method for a thermoacoustic refrigerator using a lumped parameter model. The model, formulated on the basis of vibration theory and coupled with a speaker, enables prediction of the device’s dynamic behavior without solving complex partial differential equations. Experimental validation confirmed that the model captures the essential characteristics of the system. While some limitations remain due to simplified assumptions about heat transfer in the exchanger, the results demonstrate the model’s potential as a foundation for future nonlinear analysis and device design.
Oda et al. (Wed,) studied this question.