Study of Heat Transfer Attributes of Custom Fins for Crank-Rocker Engine Block using ANSYS

Adeel Tariq; Khurram Altaf; Ahmad Majdi Abdul Rani; Masri Baharom; Abd Rashid Abd Aziz

Authors

Adeel Tariq Department of Mechanical Engineering, Universiti Teknologi Petronas, Perak, Malaysia
Khurram Altaf Department of Mechanical Engineering, Universiti Teknologi Petronas, Perak, Malaysia
Ahmad Majdi Abdul Rani Department of Mechanical Engineering, Universiti Teknologi Petronas, Perak, Malaysia
Masri Baharom Centre for Automotive Research and Electric Mobility –CAREM, Perak, Malaysia
Abd Rashid Abd Aziz Centre for Automotive Research and Electric Mobility –CAREM, Perak, Malaysia

Keywords:

Crank-Rocker engine, curved fins, Transient thermal analysis, straight fins

Abstract

Crank-rocker engine (CRE) is an internal combustion (IC) engine with a curved piston and cylinder, developed at Universiti Teknologi PETRONAS (UTP) Malaysia. Heat is generated during combustion in an IC engine, some portion of which is converted into the mechanical energy. Almost 30% of the generated heat needs to be dissipated through engine walls. Fins are used to provide additional surface area to engine block for dissipation of excess heat. Transient thermal analysis of existing 3-finsmodel of CRE is performed at different engine speeds, using ‘ANSYS Transient Thermal’ module. With the understanding of thermal behavior of the existing 3-finsmodel, new straight and curved conformal fin models, with increased surface area and better fin effectiveness, are proposed. Thermal performance of both, straight and curved fin models, is compared with existing 3-finsmodel of crank-rocker engine.