THERMAL SCIENCE

International Scientific Journal

Thermal Science - Online First

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The impact of stack parameters on the temperature difference of a thermoacoustic cooler

ABSTRACT
Thermoacoustics offer alternative solution for cooling needs where a method that is safer to environment is used. The thermodynamic process that needs to be completed by using interaction between inert gaseous and porous material must be made efficient so that the system works properly. This paper reports numerical and experimental investigations of the use of several porous material in air at atmospheric pressure to provide cooling effect. Experimental investigation was also conducted by using cheap and abundant materials as the porous media. Results were collected at two different frequencies and with two different stack lengths. The study showed that thin-walled honeycomb porous structure made of polycarbonate offers the best temperature for thermoacoustic cooler with air at atmospheric pressure. The best coefficient of performance of 4.73 was recorded. Disparity between numerical and experimental results is expected to be the result of losses that need to be carefully addressed in the future especially when long stack is used in the system.
KEYWORDS
PAPER SUBMITTED: 2021-10-18
PAPER REVISED: 2022-01-13
PAPER ACCEPTED: 2022-03-27
PUBLISHED ONLINE: 2022-06-04
DOI REFERENCE: https://doi.org/10.2298/TSCI211018073R
REFERENCES
  1. Zink, F., et al., Environmental motivation to switch to thermoacoustic refrigeration, Applied Thermal Engineering, 30.2-3 (2010): 119-126
  2. Zolpakar, N. A., et al., Analysis of increasing the optimized parameters in improving the performance of a thermoacoustic refrigerator, Energy Procedia 61 (2014): 33-36
  3. Abdoulla-Latiwish, et al., Two-stage travelling-wave thermoacoustic electricity generator for rural areas of developing countries, Applied Acoustics 151 (2019): 87-98
  4. Secretariat, Ozone. "The Montreal protocol on substances that deplete the ozone layer." United Nations Environment Programme, Nairobi, Kenya (2000)
  5. Zolpakar, N. A., et al., Experimental investigations of the performance of a standing wave thermoacoustic refrigerator based on multi-objective genetic algorithm optimized parameters, Applied Thermal Engineering 100 (2016): 296-303
  6. Hajji, H., et al., Heat transfer and flow structure through a backward and forward-facing step micro-channels equipped with obstacles, Thermal Science 25.4 Part A (2021): 2483-2492
  7. Zolpakar, N. A., et al., Performance analysis of the standing wave thermoacoustic refrigerator: A review, Renewable and sustainable energy reviews 54 (2016): 626-634
  8. Tijani, M. E. H., et al., Construction and performance of a thermoacoustic refrigerator, Cryogenics 42.1 (2002): 59-66
  9. Yahya, S. G., et al., Experimental investigation of thermal performance of random stack materials for use in standing wave thermoacoustic refrigerators, International Journal of Refrigeration 75 (2017): 52-63
  10. Tijani, M. E. H., et al., Design of thermoacoustic refrigerators, Cryogenics 42.1 (2002): 49-57
  11. Zolpakar, N. A, et al., Performance of a 3D-printed stack in a standing wave thermoacoustic refrigerator, Energy Procedia 105 (2017): 1382-1387
  12. Wantha, C., Assawamartbunluea, K., The impact of the resonance tube on performance of a thermoacoustic stack, Frontiers in Heat and Mass Transfer (FHMT) 2.4 (2012)
  13. Piccolo, A., Optimization of thermoacoustic refrigerators using second law analysis, Applied energy 103 (2013): 358-367
  14. Atiqah Z., et al., Optimization of the stack unit in a thermoacoustic refrigerator, Heat Transfer Engineering 38.4 (2017): 431-437
  15. Aydin, N., et al., Numerical investigation of heat and flow characteristics in a laminar flow past two tandem cylinders, Thermal Science 00 (2021): 175-175
  16. Saat, F. A. Z. M., et al., DeltaE modelling and experimental study of a standing wave thermoacoustic test rig, Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 60(2), (2019) 155-165
  17. Alamir, M. A., et al., Thermoacoustic Refrigerators and Heat Pumps: New Insights for A High Performance, Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 78.1 (2021): 146-156
  18. Prashantha, B. G., et al., Effect of mean operating pressure on the performance of stack-based thermoacoustic refrigerator, International Journal of Thermal & Environmental Engineering 5 (2013): 83-89
  19. Raut, A. S., Wankhede, U. S., Review of investigations in eco-friendly thermoacoustic refrigeration system, Thermal Science 21.3 (2017): 1335-1347
  20. Rahpeima, R., Ebrahimi, R., Numerical investigation of the effect of stack geometrical parameters and thermo-physical properties on performance of a standing wave thermoacoustic refrigerator, Applied Thermal Engineering 149 (2019): 1203-1214
  21. Achmadin, W. N., et al., A measurement of various length of the stack on a standing wave thermoacoustic refrigerator, Journal of Physics: Conference Series. Vol. 1869. No. 1. IOP Publishing, 2021
  22. ***, Thermal Properties of Plastic Materials, www.professionalplastics.com/professionalplastics/ThermalPropertiesofPlasticMaterials.pdf