Results 121 to 130 of about 850 (142)
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Thermoacoustically driven refrigerator with double thermoacoustic-Stirling cycles
Applied Physics Letters, 2006Recently, considerable research efforts have been made to search substitution technologies for chlorofluorocarbon-based vapor compression cycles due to the concern over environmental issues. This letter introduces a helium-based thermoacoustic refrigeration system, which is a thermoacoustic-Stirling refrigerator driven by a thermoacoustic-Stirling heat
Ercang Luo +3 more
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Torsionally resonant toroidal thermoacoustic refrigerator
The Journal of the Acoustical Society of America, 1996Current thermoacoustic refrigerator designs, based on linear actuation style moving-coil electrodynamic transducers (loudspeakers), are limited by their power-handling capacity. Loudspeakers introduce additional design constraints by the fact that they are required to simultaneously serve three separate functions: they must provide the electromotive ...
Joseph W. Osborne, Steven Garrett
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Thermoacoustic engines and refrigerators
AIP Conference Proceedings, 2012Thermoacoustic engines and refrigerators use gas inertia and compressibility to eliminate many of the mechanical contrivances required by traditional engines and refrigerators while providing potentially attractive options that might reduce environmental impacts.
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Thermoacoustic refrigerator for space applications
The Journal of the Acoustical Society of America, 1989Long-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 +8 more
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Tabletop thermoacoustic refrigerator for demonstrations
American Journal of Physics, 2002An inexpensive (less than $25) tabletop thermoacoustic refrigerator for demonstration purposes was built from a boxed loudspeaker, acrylic tubing and sheet, a roll of 35 mm film, fishing line, an aluminum plug, and two homemade thermocouples. Temperature differences of more than 15 °C were achieved after running the cooler for several minutes.
Daniel A. Russell, Pontus Weibull
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A Study of Thermoacoustic Refrigerator
SAE Technical Paper Series, 2017<div class="section abstract"><div class="htmlview paragraph">A diesel engine is advantageous in its high thermal efficiency, however it still wastes about 50% of total input energy to exhaust and cooling losses. A feasibility study of thermoacoustic refrigerator was carried out as one of the means to recuperate waste heat.
Masaaki Nakamura +2 more
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Scalability of Thermoacoustic Refrigerator
The Journal of the Acoustical Society of America, 2008The uses of thermoacoustic effect are the conversion of heat onto acoustic wave by thermoacoustic prime mover and pumping heat by acoustic wave using a thermoacoustic refrigerator. Thermoacoustic refrigerator is a good alternative to conventional vapor compression device.
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Experimental study and analysis of a thermoacoustically driven thermoacoustic refrigerator
Sādhanā, 2020Experimental investigations are performed on a half-wavelength standing wave type thermoacoustically driven thermoacoustic refrigerator also known as TADTAR. Present TADTAR device conceived to be a quarter wavelength standing wave type thermoacoustic engine (TAE) coupled to a quarter wavelength standing wave thermoacoustic refrigerator (TAR).
A B DESAI +3 more
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Miniaturation of thermoacoustic refrigerators
The Journal of the Acoustical Society of America, 2008The possibility to miniature thermoacoustic refrigerators is theoretically investigated. Both standing-wave and traveling-wave systems are considered. In the consideration of standing-wave refrigerators, a system consisting of a resonator tube (50 cm) with a closed end and a PVC stack (length 5 cm) is taken as a reference.
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Thermal Field Measurements of a Thermoacoustically Driven Thermoacoustic Refrigerator
Journal of Thermal Science and Engineering Applications, 2010Thermoacoustic refrigerator is a device that transfers heat from a low temperature medium to a high-temperature medium by using sound energy as work input. We have designed and tested a simplified thermally driven thermoacoustic refrigerator. Our refrigerator is easy to make, uses no moving parts, and has proved to be an impressive illustration of ...
Syeda Humaira Tasnim +1 more
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