Results 161 to 170 of about 2,230 (202)
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An intrinsically irreversible thermoacoustic heat engine
The Journal of the Acoustical Society of America, 1983Certain thermoacoustic effects are described which form the basis for a heat engine that is intrinsically irreversible in the sense that it requires thermal lags for its operation. After discussing several acoustical heating and cooling effects, including the behavior of a new structure called a ‘‘thermoacoustic couple,’’ we discuss structures that can
John Wheatley +3 more
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Solar/heat-driven thermoacoustic engine
The Journal of the Acoustical Society of America, 1998With its abundance and cleanliness, solar energy has been harnessed to generate power using various techniques. A thermoacoustic engine is described which was built, instrumented, and tested to demonstrate use of solar power to generate acoustic power.
Reh-lin Chen, Steven L. Garrett
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CFD simulation of thermoacoustic heat engine
Progress in Computational Fluid Dynamics, An International Journal, 2014Thermoacoustics is an emerging technology which generates the cooling power from acoustic energy, provides a significant alternative to the ozone destructing vapour compression refrigerators since there is no production of exotic materials. The performance of the thermoacoustic heat engine (TAHE) is mainly affected by its geometrical and operational ...
Haritha Muralidharan +4 more
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Thermoacoustic heat engine modeling and design optimization
Applied Thermal Engineering, 2011Abstract Thermoacoustic heat engines (TAEs) are potentially advantageous drivers for thermoacoustic refrigerators (TARs). Connecting TAEs to TARs means that waste heat can effectively be utilized to provide cooling, and increase overall efficiency. However, this is currently a niche technology.
Andrew C. Trapp +3 more
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Comparison of Different Heat Exchanger Models in a Thermoacoustic Engine Simulation
ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 2, Fora, 2010The role of unavoidable space between heat exchangers and stack inside a thermoacoustic standing wave generator is investigated. A two-dimensional Low Mach number viscous and heat conducting flow model of the active thermoacoustic cell, comprising heater and cooler separated by a stack made of parallel conducting plates, is described.
Weisman, Catherine +3 more
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Measurements on a general thermoacoustic heat engine
The Journal of the Acoustical Society of America, 1990Low-power measurements have been made in a general test setup on a class of thermoacoustic devices operating at moderately low acoustic power levels (approximately 110 dB). The setup includes two loud speakers mounted on either end of a tube filled with a porous solid and air at one atmosphere.
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Investigations of optimum design of heat exchangers of thermoacoustic engines [PDF]
, 2023 The study of thermoacoustic effects is a relatively new area, particularly in application to thermoacoustic engines. For thermoacoustic engines to be commercially viable, there are still many aspects to be investigated, not only practical aspects but also at the fundamental level of physics.
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Applied Mechanics and Materials, 2013
A green technology of acoustic of fluid-structure interactions become an emerging technology today, a call thermoacoustic heat engine. Thermoacoutics heat engine systems convert the energy on a harvesting from a waste heat energy and convert to an electrical energy. That component of devices a call a hot heat exchangers. This paper study was focused on
Irfan Abd Rahim +3 more
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A green technology of acoustic of fluid-structure interactions become an emerging technology today, a call thermoacoustic heat engine. Thermoacoutics heat engine systems convert the energy on a harvesting from a waste heat energy and convert to an electrical energy. That component of devices a call a hot heat exchangers. This paper study was focused on
Irfan Abd Rahim +3 more
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High-Power Thermoacoustic Stirling Heat Engine Results
9th Annual International Energy Conversion Engineering Conference, 2011We are developing a thermoacoustic Stirling heat engine (TASHE) to drive a pulse tube refrigerator (PTR) and electrical linear alternator for instrument cooling and power generation on a Venus lander. The TASHE will produce acoustic (PV) power and deliver it both to the linear alternator to generate electrical power and to the PTR to generate ...
Mark Haberbusch, Chinh Nguyen
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Designing Thermoacoustic Engines for Automotive Exhaust Waste Heat Recovery
SAE Technical Paper Series, 2021<div class="section abstract"><div class="htmlview paragraph">Thermoacoustic engine has been proven to be a promising technology for automotive exhaust waste heat recovery to save fossil fuel and reduce emission thanks to its ability to convert heat into acoustic energy which, hence, can be harvested in useful electrical energy.
Jianhua Zhou +3 more
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