Heat Transfer Enhancement in Stirling Engines Using Fins with Different Configurations and Air Flow
DOI:
https://doi.org/10.37934/cfdl.14.10.1631Keywords:
Stirling engine, Fin efficiency, Turbulent flow, Convection, Heat transferAbstract
The Stirling engine, in comparison to other classical engines, is an external enclosed heat engine cycle with extraordinary theoretical efficiency and minimal emissions. However, when combined with a minor heat source, the productivity of the Stirling engine suffers. Thus, this study emphasizes research on improving engine performance using heat transfer. A simulation was done using CFD analysis in ANSYS Fluent to enhance heat transfer using different types of fins, air blowers, and roughness. κ-ω SST model was used as the turbulence model to capture the heat transfer behavior near and away from the surface. All runs showed a higher heat transfer rate per unit area than the no finned case. Increasing the number of fins reduces the heat transfer by 10 %, Applying this solution would cost more since more material is needed to decrease the gap between fins. When doubling the length of the fin, the heat transfer of the circular design was reduced by 1%, the pinned design by 5%, and the squared design by 30%. The addition of fins reduced the flow of heat to the cold end and kept the temperature near the cold end below 100°C. Increasing the roughness resulted in a small increase in heat flow. Comparing the laminar flow to the transitional flow, the transitional flow increases the heat transfer by 1000%.
References
Saadon, Syamimi, Leon Gaillard, Stéphanie Giroux, and Christophe Ménézo. "Simulation study of a naturally ventilated building integrated photovoltaic (BIPV) envelope." Energy Procedia 78 (2015): 2004-2009. https://doi.org/10.1016/j.egypro.2015.11.394
Dol, Sharul Sham, Abid Abdul Azeez, Mohammad Sultan Khan, Abdulqader Abdullah Hasan, and Mohammed Alavi. "Potential of Offshore Renewable Energy Applications in the United Arab Emirates." In Clean Energy Opportunities in Tropical Countries, pp. 237-265. Springer, Singapore, 2021. https://doi.org/10.1007/978-981-15-9140-2_12
Dadi, Mohsin J., I. M. Molvi, and A. V. Mehta. "The most efficient waste heat recovery device: A gamma type stirling engine." International journal of advanced engineering technology 3, no. 5 (2012): 189-195.
Azimov, Ulugbek, Eiji Tomita, Nobuyuki Kawahara, and Sharul Sham Dol. "Combustion characteristics of syngas and natural gas in micro-pilot ignited dual-fuel engine." International Journal of Mechanical and Mechatronics Engineering 6, no. 12 (2012): 2863-2870.
Shih, Hua-Ju. "An analysis model combining gamma-type stirling engine and power converter." Energies 12, no. 7 (2019): 1322. https://doi.org/10.3390/en12071322
Jouhara, Hussam, Navid Khordehgah, Sulaiman Almahmoud, Bertrand Delpech, Amisha Chauhan, and Savvas A. Tassou. "Waste heat recovery technologies and applications." Thermal Science and Engineering Progress 6 (2018): 268-289. https://doi.org/10.1016/j.tsep.2018.04.017.
Buliński, Zbigniew, Ireneusz Szczygieł, Adam Kabaj, Tomasz Krysiński, Paweł Gładysz, Lucyna Czarnowska, and Wojciech Stanek. "Performance analysis of the small-scale α-type Stirling engine using computational fluid dynamics tools." Journal of Energy Resources Technology 140, no. 3 (2018). https://doi.org/10.1115/1.4037810
Saadon, S. "Possibility of Using Stirling Engine as Waste Heat Recovery–Preliminary Concept." In IOP Conference Series: Earth and Environmental Science, vol. 268, no. 1, p. 012095. IOP Publishing, 2019.
https://doi.org/10.1088/1755-1315/268/1/012095
Almajri, Ahmad K., Saad Mahmoud, and Raya Al-Dadah. "Modelling and parametric study of an efficient Alpha type Stirling engine performance based on 3D CFD analysis." Energy conversion and management 145 (2017): 93-106. https://doi.org/10.1016/j.enconman.2017.04.07
Thombare, D. G., and S. K. Verma. "Technological development in the Stirling cycle engines." Renewable and Sustainable Energy Reviews 12, no. 1 (2008): 1-38. https://doi.org/10.1016/j.rser.2006.07.001
Alfarawi, Suliman, Raya Al-Dadah, and Saad Mahmoud. "Potentiality of new miniature-channels Stirling regenerator." Energy conversion and management 133 (2017): 264-274. https://doi.org/10.1016/j.enconman.2016.12.017
Kongtragool, Bancha, and Somchai Wongwises. "A review of solar-powered Stirling engines and low temperature differential Stirling engines." Renewable and Sustainable energy reviews 7, no. 2 (2003): 131-154. https://doi.org/10.1016/S1364-0321(02)00053-9
Yang, Hang-Suin, and Chin-Hsiang Cheng. "Development of a beta-type Stirling engine with rhombic-drive mechanism using a modified non-ideal adiabatic model." Applied energy 200 (2017): 62-72. https://doi.org/10.1016/j.apenergy.2017.05.075
Dobre, Cătălina, Lavinia Grosu, Monica Costea, and Mihaela Constantin. "Beta type Stirling engine. schmidt and finite physical dimensions thermodynamics methods faced to experiments." Entropy 22, no. 11 (2020): 1278. https://doi.org/10.3390/e22111278
Della Torre, Augusto, Andrea Guzzetti, Gianluca Montenegro, Tarcisio Cerri, Angelo Onorati, and Fethi Aloui. "CFD modelling of a beta-type Stirling machine." In 11th World Congress on Computational Mechanics, WCCM 2014, 5th European Conference on Computational Mechanics, ECCM 2014 and 6th European Conference on Computational Fluid Dynamics, ECFD 2014, pp. 1096-1113. 2014. https://doi.org/10.13140/2.1.4560.7041
Lottmann, Matthias, Zachary de Rouyan, Linda Hasanovich, Steven Middleton, Michael Nicol-Seto, Connor Speer, and David Nobes. "Development of a 100-Watt-Scale Beta-Type Low Temperature Difference Stirling Engine Prototype." In E3S Web of Conferences, vol. 313, p. 08004. EDP Sciences, 2021. https://doi.org/10.1051/e3sconf/202131308004
Abed, Hayder M., and Yaseen H. Mahmood. "Fabrication of Stirling Engine and study its characteristics." Tikrit Journal of Pure Science 23, no. 8 (2018): 96-100.
Paul, Christopher J., and Abraham Engeda. "Modeling a complete Stirling engine." Energy 80 (2015): 85-97. https://doi.org/10.1016/j.energy.2014.11.045
Ridha, Alliche, Announ Mohamed, Chetti Boualem, and Kermezli Tayeb. "Two-Dimensional CFD Simulation Coupled with 6DOF Solver for analyzing Operating Process of Free Piston Stirling Engine." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 55, no. 1 (2019): 29-38.
Deetlefs, Ivan Niell. "Design, simulation, manufacture and testing of a free-piston Stirling engine." PhD diss., Stellenbosch: Stellenbosch University, 2014.
Joubert, L. H., J. Schutte, J. M. Strauss, and R. T. Dobson. "Design optimisation of a transverse flux, short stroke, linear generator." In 2012 XXth International Conference on Electrical Machines, pp. 640-646. IEEE, 2012. https://doi.org/10.1109/ICEM20013.2012
Aksoy, Fatih, and Can Cinar. "Thermodynamic analysis of a beta-type Stirling engine with rhombic drive mechanism." Energy conversion and management 75 (2013): 319-324. https://doi.org/10.1016/j.enconman.2013.06.043
Shendage, D. J., S. B. Kedare, and S. L. Bapat. "An analysis of beta type Stirling engine with rhombic drive mechanism." Renewable energy 36, no. 1 (2011): 289-297. https://doi.org/10.1016/j.renene.2010.06.041
Briggs, Maxwell H. "Improving power density of free-piston stirling engines." In 14th International Energy Conversion Engineering Conference, p. 5016. 2016.
Kumaravelu, Thavamalar, and Syamimi Saadon. "Heat transfer enhancement of a Stirling engine by using fins attachment in an energy recovery system." Energy 239 (2022): 121881. https://doi.org/10.1016/j.energy.2021.121881
Afshari, Ebrahim, and Nasser Baharlou Houreh. "Performance analysis of a membrane humidifier containing porous metal foam as flow distributor in a PEM fuel cell system." Energy conversion and management 88 (2014): 612-621. https://doi.org/10.1016/j.enconman.2014.08.040
Abidin, Mohamad Naufal Zainal, and Md Yushalify Misro. "Numerical Simulation of Heat Transfer using Finite Element Method." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 92, no. 2 (2022): 104-115. https://doi.org/10.37934/arfmts.92.2.104115
Ben-Mansour, R., A. Abuelyamen, and Esmail MA Mokheimer. "CFD analysis of radiation impact on Stirling engine performance." Energy conversion and management 152 (2017): 354-365. https://doi.org/10.1016/j.enconman.2017.09.056
Dol, Sharul Sham, Hiang Bin Chan, and Siaw Khur Wee. "FSI simulation of a flexible vortex generator and the effects of vortices to the heat transfer process." Platform: A Journal of Engineering 4, no. 2 (2020): 58-69.
Dol, Sharul Sham, Hiang Bin Chan, Siaw Khur Wee, and Kumar Perumal. "The effects of flexible vortex generator on the wake structures for improving turbulence." In IOP conference series: materials science and engineering, vol. 715, no. 1, p. 012070. IOP Publishing, 2020. https://doi.org/10.1088/1757-899X/715/1/012070
Dol, Sharul Sham, and Chan Hiang Bin. "Fluid-Structural Interaction Simulation of Vortices behind a Flexible Vortex Generator." In 2019 8th International Conference on Modeling Simulation and Applied Optimization (ICMSAO), pp. 1-5. IEEE, 2019. https://doi.org/10.1109/ICMSAO.2019.8880321
Rebhi, Redha, Younes Menni, Giulio Lorenzini, and Hijaz Ahmad. "Forced-Convection Heat Transfer in Solar Collectors and Heat Exchangers: A Review." Journal of Advanced Research in Applied Sciences and Engineering Technology 26, no. 3 (2022): 1-15. https://doi.org/10.37934/araset.26.3.115
Shlash, Bassam Amer Abdulameer, and Ibrahim Koç. "Turbulent fluid flow and heat transfer enhancement using novel Vortex Generator." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 96, no. 1 (2022): 36-52. https://doi.org/10.37934/arfmts.96.1.3652
Chan, Hiang Bin, Tshun Howe Yong, Perumal Kumar, Siaw Khur Wee, and Sharul Sham Dol. "The numerical investigation on the effects of aspect ratio and cross-sectional shape on the wake structure behind a cantilever." ARPN Journal of Engineering and Applied Sciences 11, no. 16 (2016): 9922-9932.
