Refrigeration – Gas compression – heat regeneration and expansion – e.g.,...
Patent
1992-12-23
1994-08-23
Flanigan, Allen J.
Refrigeration
Gas compression, heat regeneration and expansion, e.g.,...
165153, 165173, F25B 100
Patent
active
053396405
ABSTRACT:
The efficiency of a thermoacoustic device including a gas-filled, elongated resonator tube (10), an acoustic driver (16) and a tube (10) for establishing a standing wave therein, an elongated stack (20) within the tube (10) having opposite (24, 26) spaced from the driver (16) can be increased with first and second heat exchangers (28, 30) in proximity to the stack (20) at each end (24, 26) thereof where each of the heat exchangers comprises at least one tube (56, 70) formed into a plurality of spaced runs (58, 60, 62, 64, 66, 68, 72, 74, 76, 78, 80, 82). The tubes (56, 70) have an inlet (96) and an outlet (102) spaced therefrom and fins (94) are bonded to the tubes (56, 70) in the spaces between the runs (58, 60, 62, 64, 66, 68, 72, 74, 76, 78, 80, 82).
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Reprint from Technology 2001: The Second National Technology Transfer Conference and Exposition, Dec. 5, 1991, San Jose, Calif. (Steven L. Garrett and Thomas J. Hofler).
The Natural Heat Engine-Reprinted from Los Alamos Science, #14, Fall 1986 (John C. Wheatley, Gregory W. Swift, and Albert Migliori).
NASA-Lyndon B. Johnson Space Center "ThermoAcoustic Life Sciences Refrigerator".
Flanigan Allen J.
Modine Manufacturing Co.
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