Results 91 to 100 of about 132 (123)

Thermoacoustic refrigeration

1991
Naval Postgraduate School Direct Funded Research ...
Garrett, Steven L., Hofler, Thomas J.
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Application of thermoacoustic effect to refrigeration

Review of Scientific Instruments, 2003
Thermoacoustic effect, as a subprocess of the photoacoustic effect, can also convert heat to acoustic wave by a thermoacoustic prime mover, and can also pump heat by acoustic wave in a thermoacoustic refrigerator. The present study focuses on a thermoacoustically driven pulse tube refrigerator, utilizing sound from a thermoacoustic prime mover to drive
T. Jin, G. B. Chen, B. R. Wang, S. Y. Zhang   +3 more
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Thermoacoustic refrigerator for space applications

The Journal of the Acoustical Society of America, 1989
Long-lived, space-based cryocoolers with low vibration levels are necessary in a variety of applications, including the cooling of infrared sensors and high Tc superconductors. A thermoacoustic refrigerator designed to function autonomously in a Space Shuttle Get Away Special (GAS) canister will be described that has no sliding seals and oldy 15 gm of ...
S. L. Garrett, T. Hofler, M. Fitzpatrick, M. P. Susalla, R. Yolkert, D. Harris, R. B. Byrnes, C. B. Cameron, F. M. Murray   +8 more
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Thermoacoustic life sciences refrigerator

The Journal of the Acoustical Society of America, 1993
This thermoacoustic refrigerator is being built to preserve biological samples (blood, urine, etc.) during Space Shuttle operations. It employs two high-power electrodynamic drivers capable of generating 60 W of acoustic power each, two ‘‘stacks,’’ and four internal heat exchangers in order to produce 700 BTU/h (205 W) of cooling in the refrigerator ...
Steven L. Garrett, D. Felipe Gaitan, David K. Perkins, D. Andrew Helseth   +3 more
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ThermoAcoustic Refrigeration

2014
Alternative Fluorocarbons Environmental Acceptability ...
Garrett, Steven L., Hofler, Thomas J., Perkins, David K.   +2 more
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Thermoacoustic Refrigerator’s Stack Optimization

AIP Conference Proceedings, 2010
The standing wave thermoacoustic refrigerator, which uses sound generation to transfer heat, was developed rapidly during the past four decades. It was regarded as a new, promising and environmentally benign alternative to conventional compression vapor refrigerators, although it was not competitive regarding the coefficient of performance (COP) yet ...
Mawahib Hassan El-Fawal, Normah Mohd-Ghazali, Mohd. Shafik Yaacob, Amer Nordin Darus, M. A. Wahid, S. Samion, N. A. C. Sidik, J. M. Sheriff   +7 more
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Experimental studies on thermoacoustic refrigeration

The Journal of the Acoustical Society of America, 1996
Thermoacoustic refrigeration phenomena in a resonance tube were studied experimentally. A horizontal brass tube of 400 mm in length and 40 mm in diameter was closed at one end and attached to the acoustic driver (audio speaker) at the other end. Atmospheric air was enclosed in the tube as a working fluid.
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Thermoacoustic–Stirling model refrigerator

The Journal of the Acoustical Society of America, 2001
The design and performance of a model refrigerator that uses a stainless-steel woven regenerator (4.1 cm diameter, 5.0 mm thick) and an unconventional Helmholtz resonator to provide proper phasing for the regenerator are described. Cooling is produced in air at atmospheric pressure with sound pressures in excess of 6 kPa in a transparent 60 cm long ...
Matthew E. Poese, Steven L. Garrett
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Numerical optimization of a novel thermoacoustically driven thermoacoustic refrigerator

The Journal of the Acoustical Society of America, 1997
Previous modeling work on a novel heat-driven refrigerator has generated overall COP numbers in the range of 0.45 using pure helium gas. The modeled conditions are for commercial or air-conditioning cooling temperatures, with a hot drive temperature of 400 °C.
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Parametric Optimization for Thermoacoustic Refrigerator Driven by Thermoacoustic Engine

International Conference on Fluid Flow, Heat and Mass Transfer, 2022
Ussama Ali, Md Islam, Isam Janajreh
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