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International Conference on Innovative Applied Energy    

E-Proceedings ISBN: 978-1-912532-05-6

St Cross College, University of Oxford, United Kingdom

  


 

Analysis of Thermoacoustic Cooling and Refrigeration for Performance Enhancement

 


 

Abdullah A. Alshorman

Al-Balqa’ Applied University- Al-Huson University College, Mechanical Engineering Department, Jordan

  

Paper Abstract

Thermoacoustic cooling or heating (Thermoacoustic effect) related to absorbing and releasing clean energy using passageway of acoustic (sound) energy through surrounded thermoacoustic tube called resonator. Cooling and refrigeration could be accomplished without any rotating parts using special designed of two heat exchangers at the two-ends of this thermoacoustic tube by means of suitable working fluid like air, hydrogen or inert gas under controlled thermoacoustic conditions. This enables for getting clean energy with relatively low initial and operating costs.  

In this simulation study an analysis of thermoacoustic cooling was investigated for performance enhancement using different gases (i.e., hydrogen, oxygen, air and different inert gases like helium neon and xenon). The effects of these gases on cooling cycle heat added (ql), heat rejected (qh) and the coefficient of performance (COP) had studied in addition to the their roles in enhancement of cooling performance at lower sound intensity(dB) and relatively medium wave pressure amplitude (Pm) using exclusively built simulation model. 

The results have showed that helium and hydrogen allowed for the highest thermoacoustic coefficient of performance COPTR of 0.77 and 0.76 respectively, while the lowest COPTR values were 0.64 for xenon and 0.68 for argon. Furthermore the effective operating range of sound Intensity was (160 – 210) dB for sensible cooling effect, such that the most outstanding acoustic operating conditions were around 190 dB under temperature of 300 K and 1.0 atmospheric pressure. However, the results have proved that inert gas like helium and neon own the best physical properties like thermal conductivity (k), density (r) and specific heat (cp)  to be as working fluid in thermoacoustic refrigerator. 

Paper Keywords
Thermoacoustic cooling, sound Intensity, coefficient of performance (COP), resonator.
Corresponding author Biography

I am associated professor at Al-Balqa' Applied University (BAU) - Al-Huson University College-Mechanical Engineering Department-Irbid- Jordan. I've got my BSc. and MSc. degrees in mechanical engineering from Jordan University of Science and Technology (JUST) at 1989 and 1992 respectively. My PhD. was in mechanical-Biomedical engineering– (Bio-fluid dynamics and cell-tissue engineering) at 2001 from Leeds University -United Kingdome (UK).

My research interests cover the topics of fluid & bio-fluid dynamics, heat transfer, energy conversion, blood thermo-hemodynamics, PEM-fuel cell and renewable energy. 

I was in different academic and administrative positions such as head of mechanical engineering department, assistant dean for scientific research, director of industrial outreach unit at Faculty of Engineering Technology (FET) in Amman. In addition to this, I am teaching post and under graduate courses at BAU, JUST and Yarmouk universities, supervising applied projects for M.Sc. and final year students and conducting research studies and projects in the fields of thermo-fluids, energy and bio-engineering.

The International Conference on Innovative Applied Energy (IAPE’18)