Accession Number : ADA327871

Title :   Stack/Heat-Exchanger Research for Thermoacoustic Heat Engines.

Descriptive Note : Summary rept. 1 Jun 96-31 May 97,

Corporate Author : PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF PHYSICS

Personal Author(s) : Maynard, Julian D.

PDF Url : ADA327871

Report Date : 06 JUN 1996

Pagination or Media Count : 11

Abstract : The goal of this project is to develop novel configurations of heat pumping elements and heat exchangers for thermoacoustic heat engines. The approach will be to use anisotropic systems employing innovative technology. This approach will allow a heat exchange fluid to flow directly across the heat pumping element of the thermoacoustic heat engine (the 'stack'), eliminating the necessity of separate heat exchangers and possibly improving efficiency. During the past year a radically new design, which is robust (using only stainless steel and epoxy), relatively easy to fabricate, and employs a filament array or 'pin' stack, has been developed. The pin-stack elements are being made commercially, and other parts have been fabricated for testing the system in the 'Space Thermoacoustic Refrigerator' of S. L. Garrett.

Descriptors :   *HEAT ENGINES, *THERMOACOUSTICS, STAINLESS STEEL, HEAT EXCHANGERS, ANISOTROPY, REFRIGERANTS, HEAT PUMPS.

Subject Categories : Acoustics
      Thermodynamics
      Air Condition, Heating, Lighting & Ventilating

Distribution Statement : APPROVED FOR PUBLIC RELEASE