Design optimization and numerical investigation of thermal performance enhancement in an air-cooled engine cylinder with fins

Engine cylinders experience significant temperature fluctuations and thermal stresses. Enhancing heat dissipation is crucial for optimal engine performance, but increasing surface area can lead to complex and bulky designs. Fins are integral components in enhancing heat transfer between a base surface and its surrounding environment. Fins are effectively employed to augment heat transfer from the cylinder surface. This study aims to analyze the thermal performance of engine cylinder circumferential fins with rectangular and triangular profiles by investigating the impact of different materials and fin sizes on their performance. ۳D models of the engine cylinder with varying slot sizes, while maintaining the fin size and number constant, were designed using Solidworks. Steady-state thermal analysis was then performed using ANSYS. The base material for the cylinder fins was initially considered to be Aluminum Alloy A۲۰۴. The performance of this base material was compared with other aluminum alloys, such as ۶۰۶۱, C۴۴۳, and ۲۰۱۴, which exhibit higher thermal conductivities. The results demonstrated that ۷۵ mm slotted fins fabricated from Aluminum Alloy ۲۰۱۴ exhibited the highest heat transfer rate and circumferential fins made of Aluminum Alloy ۶۰۶۱ demonstrate superior performance. In investigation it was observed that increasing the slot size beyond ۷۵ mm resulted in a decrease in heat transfer rate.

کلیدواژه ها:

Optimization ، Fins ، Rectangular & Triangular Profiles ، Heat transfer enhancement ، Engine Air-Cooling