A Numerical investigation on Enhancing Heating performance in Automotive Radiator
DOI:
https://doi.org/10.31185/ejuow.Vol10.Iss3.384Keywords:
Automotive radiator, Compact heat exchanger, CFD simulation, Designed geometry, Heat transferAbstract
In this paper, the improvement of heat exchange in a compact heat exchanger that is used in the automotive cooling system is numerically studied due to the importance that this part of the automotive represents in removing the heat generated in the automotive engine. The study adopted CFD simulation to introduce a new design of radiator that included changing the geometry and material of the tube while maintaining the same cross-section area In addition, the study also included replacing the shape of the fins from the louver to plain fin with the increase in the number of tubes. The study used a water-Ethylene glycol mixture (50:50) as a hot fluid with four flow rates (10, 12, 18, 24) l/h, (75, 85, 95) °C inlet temperature, and air as a cold fluid with 1.5, 2.5, 4.5, 5.5) m/s and (35) °C inlet temperature. Through the results obtained, the designed model appeared to have a higher thermal performance than the standard model due to the material and shape of the tube and fins. The designed model performed well, achieving an improvement ratio of (18.6%) for the heat transfer rate, (13.8%) for the overall heat transfer coefficient for the hot fluid, and (29.8%) for the air-side heat transfer coefficient
References
Karimi A, & Afrad M, (2018). Numerical study on thermal performance of an air- cooled heat exchanger: Effect of hybrid nano fluid, pipe arrangement and cross section. Energy convection and management, vol.164, pp. 615–628. https://doi.org/10.1016/j.enconman.2018.03.038 DOI: https://doi.org/10.1016/j.enconman.2018.03.038
Tijani A. S, & Sudirman A. S. bin, (2018). Thermos-physical properties and heat transfer characteristics of water/anti-freezing and Al2O3/CuO based nanofluid as a coolant for car radiator. International Journal of Heat and Mass Transfer,vol.(118), pp. 48–57. https://doi.org/10.1016/j.ijheatmasstransfer.2017.10.083 DOI: https://doi.org/10.1016/j.ijheatmasstransfer.2017.10.083
Priyadarsini, C. I., Reddy, T. R., & Devi, P. A. (2022). Design and Performance Analysis of Automotive Radiator using Computational Fluid Dynamics. In International Journal of Mechanical Engineering ,Vol. 7, Issue 3.
Abhilash, P., Raghupathi, U., & Kumar, P. (2020). Design and testing of radiator with fixed channel and helical pipe using nanofluids. Materials Today: Proceedings, 39, 615–620. https://doi.org/10.1016/j.matpr.2020.09.002 DOI: https://doi.org/10.1016/j.matpr.2020.09.002
Bhattarai S, Vichare P, Dahal K, Ghimire SK, & Raju KM, (2017). Computational Fluid Dynamics based Performance Evaluation of Louvered Fin Radiator. In Proceedings of the 11th International Conference on Software, Knowledge, Information Management & Applications. Sri Lanka Institute of Information Technology. Sri Lanka. DOI: https://doi.org/10.1109/SKIMA.2017.8294125
Zeeshan M., Nath S., & Banja, D. (2017). Numerical study to predict optimal configuration of fin and tube compact heat exchanger with various tube shapes and spatial arrangements. Energy Conversion and Management, 148, 737–752. https://doi.org/10.1016/j.enconman.2017.06.011 DOI: https://doi.org/10.1016/j.enconman.2017.06.011
Borrajo Peláez R., Ortega Casanova J., & Cejudo-López J. M., (2010). A three-dimensional numerical study and comparison between the air side model and the air/water side model of a plain fin-and-tube heat exchanger.Applied Thermal Engineering, Vol.30(13), pp.1608–1615. https://doi.org/10.1016/j.applthermaleng.2010.03.018. DOI: https://doi.org/10.1016/j.applthermaleng.2010.03.018
Myhren J. A., Holmberg, S. (2011). Improving the thermal performance of ventilation radiators - The role of internal convection fins. International Journal of Thermal Sciences, Vol.50(2), pp. 115–123. https://doi.org/10.1016/j.ijthermalsci.2010.10.011 DOI: https://doi.org/10.1016/j.ijthermalsci.2010.10.011
Oliet C., Oliva A., Castro J., and Pérez-Segarra C. D., (2007). Parametric studies on automotive radiators. Applied Thermal Engineering, Vol 27(11–12), pp.2033–2043. https://doi.org/10.1016/j.applthermaleng.2006.12.006 DOI: https://doi.org/10.1016/j.applthermaleng.2006.12.006
American Society of Heating, R. and A.-C. Engineers. (2009). ASHRAE handbook: fundamentals. American Society of Heating, Refrigeration and Air-Conditioning Engineers.
Taher F. A. and Kadhim Z. K., (2019). Experimental and Numerical Investigation of Different Finned Tube Heat Exchanger M.Sc. thesis, The University of Wasit. Eng. collage, Mech. Dep, Iraq.
Mardan S. A. and Kadhim Z. K., (2020). Numerical and Experimental Study of Cross-Flow External Finned Tubes Heat Exchanger. M.Sc. thesis, The University of Wasit. Eng. collage, Mech. Dep, Iraq.
Downloads
Published
Issue
Section
License
Copyright (c) 2022 Wasit Journal of Engineering Sciences
This work is licensed under a Creative Commons Attribution 4.0 International License.
