Loading...

Acousto-refrigerator with an adjustable mechanical resonator

Amjadi, A ; Sharif University of Technology | 2008

387 Viewed
  1. Type of Document: Article
  2. Publisher: Materials and Energy Research Center , 2008
  3. Abstract:
  4. Thermoacoustics describes energy conversion processes, activated by interaction temperature oscillation, accompanying the pressure oscillation in a sound wave, with solid boundaries. In ordinary experience this interaction of sound and heat cannot be observed, because of the very low temperature differences, but under suitable conditions, it can be emphasized and amplified to create remarkable thermodynamic effects such as, steep thermal gradients, powerful convective heat fluxes, and strong sound fields. We designed and constructed a simple thermoacoustic refrigerator with an adjustable mechanical resonator, coupled with the acoustic resonator. Our experimental data showed about % 10 increase in the efficiency of the refrigeration in comparison with a simple thermoacoustic refrigerator with no mechanical resonator
  5. Keywords:
  6. Acoustic fields ; Energy conversion ; Photoacoustic effect ; Refrigerators ; Coupledmechanical resonator ; Drinking straw ; Nonlinear spring ; Stack ; Thermoacoustic refrigerator ; Resonators
  7. Source: International Journal of Engineering, Transactions B: Applications ; Volume 21, Issue 2 , 2008 , Pages 183-196 ; 1728-144X (ISSN)
  8. URL: http://www.ije.ir/article_71712.html