Theses and Dissertations

Date of Award


Document Type


Degree Name

Master of Science (MS)


Mechanical Engineering

First Advisor

Dr. Ben Xu

Second Advisor

Dr. Stephen Crown

Third Advisor

Dr. Yingchen Yang


Thermoacoustics (TA) deals with the conversion of heat into sound and vice versa. Device that converts heat into acoustic work is called TA heat engine, while the device that transfers energy from a low temperature reservoir to a high temperature one by utilizing acoustic work is called TA cooler. A simple construction of TA cooler includes an acoustic speaker, a resonator tube and a regenerator stack in which the temperature gradient is being imposed. Such a TA cooler has several advantages over traditional compression/expansion cooling machine such as its simplicity of the construction, high reliability and lack of toxic refrigerants. Operating on air as the working fluid at standard atmospheric pressure, a standing wave thermoacoustic cooler was built to investigate water condensation enhancement when compared with a reference system without TA phenomena. Also, three different 3D printed stacks were used in the experiments to analyze the correlation between their performances and geometries.


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