نتایج جستجو برای: thermoacoustic refrigerator

تعداد نتایج: 3383  

Journal: :Physical review letters 2006
C Van den Broeck R Kawai

Onsager symmetry implies that a Brownian motor, driven by a temperature gradient, will also perform a refrigerator function upon loading. We analytically calculate the corresponding heat flow for an exactly solvable microscopic model and compare it with molecular dynamics simulations.

2011
G. Subramanya Nayak

In conventional or standard refrigerator there is no system of automatically monitoring the materials or food items and also it will not replace immediately. An intelligent refrigerator is one which possesses self monitoring capability of food item or material with minimal or no human intervention. Such a product should have the capability of automatically detecting and alerting the consumer of...

2003
Y. Ueda T. Biwa Y. Tashiro U. Mizutani T. Yazaki

We constructed a looped tube thermoacoustic engine equipped with a stack made of ceramics having many square pores and two heat exchangers. We employed three stacks with different pore sizes and studied the effect of changing the pore size on the acoustic field excited in the present engine through the pressure and velocity measurements. By analysing the experimental data, we are led to conclud...

Journal: :The Journal of the Acoustical Society of America 1989

2006
Jonathan Newman

From creating comfortable home environments to manufacturing fast and efficient electronic devices, air conditioning and refrigeration remain expensive, yet essential, services for both homes and industries. However, in an age of impending energy and environmental crises, current cooling technologies continue to generate greenhouse gases with highenergy costs. Thermoacoustic refrigeration is an...

1999
Jean-Pierre Hathout

Continuous combustion processes are prominently encountered in many applications related to power generation, heating and propulsion. Examples include domestic and industrial burners, steam and gas turbines, waste generators, and jet and ramjet engines. Continuous combustion processes exhibit a wide range of dynamics. Of these, conditions which promote coupling with the acoustic field and resul...

2015
JONATHAN P. EPPERLEIN

APRIL 2015 « IEEE CONTROL SYSTEMS MAGAZINE 57 Digital Object Identifier 10.1109/MCS.2014.2384971 Date of publication: 17 March 2015 T he Rijke tube [1] is a classic experiment that is relatively simple and inexpensive to build in a typical university laboratory. Despite its construction simplicity, it can serve to illustrate a wide variety of mathematical modeling, empirical identification, ver...

2003
Konstantin Matveev

Thermoacoustic instability can appear in thermal devices when unsteady heat release is coupled with pressure perturbations. This effect results in excitation of eigen acoustic modes of the system. These instabilities are important in various technical applications, for instance, in rocket motors and thermoacoustic engines. A Rijke tube, representing a resonator with a mean flow and a concentrat...

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