Results 131 to 140 of about 215 (180)
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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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The Journal of the Acoustical Society of America, 1993
Similitude is applied to thermoacoustics without using the acoustic approximation. The equations which are important to thermoacoustics (continuity, motion, and heat transfer) are rewritten in dimensionless form, verifying that the list of dimensionless variables obtained from similitude is complete.
Jeffrey R. Olson, Gregory W. Swift
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Similitude is applied to thermoacoustics without using the acoustic approximation. The equations which are important to thermoacoustics (continuity, motion, and heat transfer) are rewritten in dimensionless form, verifying that the list of dimensionless variables obtained from similitude is complete.
Jeffrey R. Olson, Gregory W. Swift
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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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The Journal of the Acoustical Society of America, 2000
The high rate of heat transfer (up to 500 MW/m2) which can be achieved by explosive bubbles has long been recognized. This process finds a widening range of application from microsurgery to computer peripherals design. The best-known example is the thermal ink-jet printer, where an ultrahigh heat flux applied for short duration of about 6 μs induces ...
Ran Yaron +3 more
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The high rate of heat transfer (up to 500 MW/m2) which can be achieved by explosive bubbles has long been recognized. This process finds a widening range of application from microsurgery to computer peripherals design. The best-known example is the thermal ink-jet printer, where an ultrahigh heat flux applied for short duration of about 6 μs induces ...
Ran Yaron +3 more
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Applied Physics Letters, 2020
In this study, we developed microwave-induced thermoacoustic endoscopy (TAE), which employs a high-repetition-rate pulsed microwave generator for external excitation and a side-view focused ultrasound transducer for internal acoustic detection. The system yields a lateral resolution of 1.5 mm and an axial resolution of 0.35 mm.
Xiao Liang +5 more
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In this study, we developed microwave-induced thermoacoustic endoscopy (TAE), which employs a high-repetition-rate pulsed microwave generator for external excitation and a side-view focused ultrasound transducer for internal acoustic detection. The system yields a lateral resolution of 1.5 mm and an axial resolution of 0.35 mm.
Xiao Liang +5 more
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The Journal of the Acoustical Society of America, 1988
Thermoacoustic engines, or acoustic heat engines, are energy-conversion devices that achieve simplicity and concomitant reliability by use of acoustic technology. Their efficiency can be a substantial fraction of Carnot’s efficiency. In thermoacoustic prime movers, heat flow from a high-temperature source to a low-temperature sink generates acoustic ...
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Thermoacoustic engines, or acoustic heat engines, are energy-conversion devices that achieve simplicity and concomitant reliability by use of acoustic technology. Their efficiency can be a substantial fraction of Carnot’s efficiency. In thermoacoustic prime movers, heat flow from a high-temperature source to a low-temperature sink generates acoustic ...
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The measurements of thermoacoustic phenomena using thermoacoustic couples
2013Lieutenant, Taiwan ...
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Physics World, 1988
Thermoacoustic phenomena, involving the generation of sound by fluctuating heat addition have been studied for over two centuries. They are most familiar in the form of such laboratory devices as the Sondhaus tube and the Rijke tube and in the destructive instabilities that can occur in combustion systems. Now, Albert Migliori and Greg Swift at the Los
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Thermoacoustic phenomena, involving the generation of sound by fluctuating heat addition have been studied for over two centuries. They are most familiar in the form of such laboratory devices as the Sondhaus tube and the Rijke tube and in the destructive instabilities that can occur in combustion systems. Now, Albert Migliori and Greg Swift at the Los
openaire +1 more source