Increasing The Thermal Efficiency Of An Air Cooled Engine By Modifying The Fin Profile

Yash Prashant Mistry , Yashas Madhukar Naik , Yadhunandan Hegde , Vishwas V Rayas

Air-cooled IC engine; slotted fin geometry; thermal performance enhancement; mixed convection; heat transfer analysis; fin optimization; sustainable engine cooling.

This Internal Combustion (IC) engines convert chemical energy into mechanical power; however, a substantial fraction of this energy is lost as waste heat. Inefficient thermal management results in elevated operating temperatures, increased thermal stresses, reduction of the life cycle of the component, and lower fuel efficiency. Conventional air-cooled engine fins with standard rectangular or cylindrical geometries often exhibit limited heat transfer capability due to insufficient surface area and non-optimized flow interaction. This study presents a design modification approach aimed at enhancing the thermal performance of air-cooled IC engine fins with the help of slotted geometries. The use of slots increases the effective surface area and allows better convective heat transfer under both forced and free convection conditions. A Honda SP160 engine cylinder is selected as the reference model. Fin geometries were developed, and analyzed using steady-state and transient thermal simulations using Autodesk Fusion 360. Calculations involving Reynolds number, Nusselt number, and convective heat transfer coefficients were performed to validate numerical results. The proposed slotted fin designs show a significant reduction in maximum fin temperature and improved heat dissipation compared to conventional fins. The study highlights the potential of slotted fin geometries to improve engine thermal efficiency, durability, and sustainability while maintaining manufacturability

Published Paper   E-Certificate

"Increasing The Thermal Efficiency Of An Air Cooled Engine By Modifying The Fin Profile ", IJSDR - International Journal of Scientific Development and Research (www.IJSDR.org), ISSN:2455-2631, Vol.11, Issue 1, page no.b274-b280, January-2026, Available :https://ijsdr.org/papers/IJSDR2601136.pdf

Volume 11 Issue 1, January-2026

Pages : b274-b280

Paper Reg. ID: IJSDR_306977

Published Paper Id: IJSDR2601136

Downloads: 000227

Research Area: Science and Technology

Country: Bengaluru, Karnataka, India

Published Paper PDF: https://ijsdr.org/papers/IJSDR2601136

Published Paper URL: https://ijsdr.org/viewpaperforall?paper=IJSDR2601136

ISSN: 2455-2631 | IMPACT FACTOR: 9.15 Calculated By Google Scholar | ESTD YEAR: 2016

An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 9.15 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator

Publisher: IJSDR(IJ Publication) Janvi Wave

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