Pin Stack Array for Thermoacoustic Energy Conversion
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Authors
Keolian, Robert M.
Swift, Gregory W.
Subjects
Advisors
Date of Issue
1995-10-10
Date
Publisher
The Regents of the University of California
Language
Abstract
A thermoacoustic stack for connecting two heat exchangers in a thermoacoustic energy converter provides a convex fluid-solid interface in a plane perpendicular to an axis for acoustic oscillation of fluid between the two heat exchangers. The convex surfaces increase the ratio of the fluid volume in the effective thermoacoustic volume that is displaced from the convex surface to the fluid volume that is adjacent the surface within which viscous energy losses occur. Increasing the volume ratio results in an increase in the ratio of transferred thermal energy to viscous energy losses, with a concomitant increase in operating efficiency of the thermoacoustic converter. The convex surfaces may be easily provided by a pin array having elements arranged parallel to the direction of acoustic oscillations and with effective radial dimensions much smaller than the thicknesses of the viscous energy loss and thermoacoustic energy transfer volumes.
Type
Patent
Description
Series/Report No
Department
Organization
Naval Postgraduate School (U.S.)
Identifiers
5,456,082
NPS Report Number
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Funder
Format
Citation
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.