Thermoacoustic Refrigerators and Heat Pumps: New Insights for A High Performance
Keywords:Refrigeration, Thermoacoustics, Temperature difference, Performance
Thermoacoustic refrigerators and heat pumps are considered one of the important emerging green technologies. They are based on the use of acoustic pressure waves to supply cooling or heating effects. The oscillating gas interaction with a solid wall called the stack generates thermoacoustic effects. This study presents the effects of the operating conditions and geometric parameters on the temperature difference across the stack and the coefficient of performance of a thermoacoustic heat pump at different cooling loads. The design steps of these systems were also demonstrated. Theoretical study of the operation conditions and geometric parameters was presented using “DeltaEC”. The results showed that higher harmonics are less desirable for thermoacoustic phenomena as they lower the temperature difference across the stack. Further insights into the effects of amplitude pressure, mean pressure and stack geometries were also demonstrated. This study helps to establish the concepts and design steps for thermoacoustic refrigerators and heat pumps.
Tijani, Moulay El Hassan. Loudspeaker-driven thermo-acoustic refrigeration. Eindhoven, Netherlands: Technische Universiteit Eindhoven, 2001.
Wetzel, Martin, and Cila Herman. "Design optimization of thermoacoustic refrigerators." International Journal of Refrigeration 20, no. 1 (1997): 3-21. https://doi.org/10.1016/S0140-7007(96)00064-3
Babaei, Hadi, and Kamran Siddiqui. "Design and optimization of thermoacoustic devices." Energy Conversion and Management 49, no. 12 (2008): 3585-3598. https://doi.org/10.1016/j.enconman.2008.07.002
Tijani, M. E. H., J. C. H. Zeegers, and A. T. A. M. De Waele. "Construction and performance of a thermoacoustic refrigerator." Cryogenics 42, no. 1 (2002): 59-66. https://doi.org/10.1016/S0011-2275(01)00180-1
Alamir, Mahmoud A. "Experimental study of the stack geometric parameters effect on the resonance frequency of a standing wave thermoacoustic refrigerator." International Journal of Green Energy 16, no. 8 (2019): 639-651. https://doi.org/10.1080/15435075.2019.1602533
Elnegiry, E. A., H. R. Eltahan, and M. A. Alamir. "Optimizing the performance of a standing wave loudspeaker driven thermoacoustic heat pump." International Journal of Scientific and Engineering Research 7 (2016): 460-465. https://doi.org/10.14299/ijser.2016.09.004
Alamir, Mahmoud A. "Optimising the performance of a standing wave loudspeaker driven thermoacoustic heat pump." Master thesis, Mansoura University, Egypt. 2017. https://doi.org/10.13140/RG.2.2.24167.29609
Alamir, Mahmoud A., and Ahmed A. Elamer. "A compromise between the temperature difference and performance in a standing wave thermoacoustic refrigerator." International Journal of Ambient Energy 41, no. 13 (2020): 1441-1453. https://doi.org/10.1080/01430750.2018.1517673
Alamir, Mahmoud A. "Experimental study of the temperature variations in a standing wave loudspeaker driven thermoacoustic refrigerator." Thermal Science and Engineering Progress 17 (2020): 100361. https://doi.org/10.1016/j.tsep.2019.100361
DeltaEC. “Design Environment for Low-amplitude ThermoAcoustic Energy Conversion; Version-6.0.” LANL, 2007. www.lanl.gov/thermoacoustics.
Arafa, N. M., A. H. Ibrahim, and E. E. Khalil. "Sensitivity analysis of a standing-wave thermoacoustic engine." In 9th Annual International Energy Conversion Engineering Conference, vol. 31. 2011.
Jamaluddin, Mohd Syahmiyadiy, Md Mizanur Rahman, Mohd Faizal Hasan, Aminuddin Saat, and Mazlan Abd Wahid. "Performance evaluation of a small-scale solar driven refrigeration system." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 36, no. 1 (2017): 10-20.
Saengsikhiao, Piyanut, Juntakan Taweekun, Kittinan Maliwan, Somchai Sae-ung, and Thanansak Theppaya. “Improving Energy Efficiency in the Supermarket by Retrofitting Low E Glass Doors for Open Refrigerated.” Journal of Advanced Research in Applied Sciences and Engineering Technology 20, no. 1 (2020):11-17.
Mohammad, Roslina, Foad Sharifi, D. Sharifi, N. Othman, and Zuritah A. Kadir. "Optimization of Heat Exchanger Network in Olefin Unit of Oil Refinery." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 13, no. 1 (2015): 1-16.
Belaid, Kheira Nehar, and Omar Hireche. "Influence of heat exchangers blockage ratio on the performance of thermoacoustic refrigerator." International Journal of Heat and Mass Transfer 127 (2018): 834-842. https://doi.org/10.1016/j.ijheatmasstransfer.2018.05.144
Alamir, Mahmoud A., Kristy L. Hansen, and Branko Zajamsek. "The effect of wind farm noise on human response: An analysis of listening test methodologies." In Proceedings of ACOUSTICS, vol. 7, no. 9. Adelaide, Australia, 2018.
Mohammad, Roslina, Foad Sharifi, D. Sharifi, Norazli Othman, and Zuritah A. Kadir. "Design of heat exchanger network in olefin unit of oil refinery." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 12, no. 1 (2015): 21-34.
Hayder, G., and P. Puniyarasen. "Identification and evaluation of wastes from biodiesel production process." Journal of Advanced Research in Applied Sciences and Engineering Technology 3, no. 1 (2016): 21-29.
Alamir, Mahmoud A., Kristy L. Hansen, Branko Zajamsek, and Peter Catcheside. "Subjective responses to wind farm noise: A review of laboratory listening test methods." Renewable and Sustainable Energy Reviews 114 (2019): 109317. https://doi.org/10.1016/j.rser.2019.109317
Ismail, H., A. A. Aziz, R. A. Rasih, N. Jenal, Z. Michael, and Azmi Roslan. “Performance of Organic Rankine Cycle Using Biomass as Source of Fuel.” Journal of Advanced Research in Applied Sciences and Engineering Technology 4, no. 1 (2016): 29-46.
Berrabah, H. M., N. Z. Sekrane, and B. E. Adda. "Comparative study of sound wave propagation in single-walled carbon nanotubes using nonlocal elasticity for two materials (Al) and (Ni)." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 18, no. 1 (2016): 20-34.
Kwong, Tang Hing, Flora Anak Albert Daud, and Chai Teck Jung. "Sustainable Green Concrete by using Biomass Aggregate." Journal of Advanced Research in Applied Sciences and Engineering Technology 18, no. 1 (2020): 31-37.
Alamir, Mahmoud A., Aws AlHares, Kristy L. Hansen, and Ahmed Elamer. "The effect of age, gender and noise sensitivity on the liking of food in the presence of background noise." Food Quality and Preference (2020): 103950.
Hailegiorgis, Sintayehu Mekuria, Saleem Nawaz Khan, Nur Hanis H. Abdolah, Muhammad Ayoub, and Aklilu Tesfamichael. "Investigation of Carbon Dioxide Solubility in Aqueous N-methyldiethanolamine (MDEA)-1-butyl-3-methylimidazolium acetate ([bmim][Ac]) Hybrid Solvent." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 42, no. 1 (2018): 65-71.
Ismail, Zakaria, Nik Azmi Nik Mahmood, Noor Azrimi Umor, and Syed Anuar Faua’ad Syed. "Submerged Bed Biofilms Reactor (SBBR) for Industrial Wastewater Treatment." Journal of Advanced Research in Applied Sciences and Engineering Technology 17, no. 1 (2019): 45-53.
Alamir, Mahmoud A., and Kristy Hansen. "The effect of type and level of background noise on food liking: A laboratory non-focused listening test." Applied Acoustics 172 (2021): 107600. https://doi.org/10.1016/j.apacoust.2020.107600
Alamir, Mahmoud A. "An artificial neural network model for predicting the performance of thermoacoustic refrigerators." International Journal of Heat and Mass Transfer 164 (2021): 120551. https://doi.org/10.1016/j.ijheatmasstransfer.2020.120551