Accession Number:

ADA230700

Title:

Theoretical and Experimental Study of Thermoacoustic Engines

Descriptive Note:

Annual summary rept. 1 Sep 1989-1 Sep 1990

Corporate Author:

MISSISSIPPI UNIV UNIVERSITY PHYSICAL ACOUSTICS RESEARCH LAB

Personal Author(s):

• Raspet, Richard
• Bass, Henry E.
• Arnott, W. P.

Report Date:

1990-12-20

Pagination or Media Count:

117.0

Abstract:

This report describes theoretical and experimental research on thermoacoustic engines. The work includes three principal components 1 theoretical and experimental work performed at the Naval Postgraduate School, 2 theoretical investigation of the thermoacoustic engine from acoustic analysis rather then energy analysis, 3 and design of a low frequency thermoacoustic driver utilizing square pore material for the stack. An acoustic based theory was conducted to predict the onset of oscillation in a thermoacoustic driver and for the Q of the resonance and performed measurements. The experimental results agree, well with the theory. An acoustic theory for thermoacoustic engines utilizing various stack geometries was developed. this theory was based on earlier work on sound propagation in arbitrary pore shapes. A thermoacoustic driver was designed based on the square pore theory.

Descriptors:

• *ACOUSTICS
• THEORY
• ENERGY
• ACOUSTIC ARRAYS
• SOUND ANALYZERS
• ENGINES
• OSCILLATION
• STACKING
• THERMODYNAMICS
• SOUND TRANSMISSION

Subject Categories:

• Electric Power Production and Distribution
• Air Conditioning, Heating, Lighting and Ventilating
• Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE