An Analytical Model Analysis on Perforated Aerofoil Shaped Pin Fins in Heat Dissipation Enhancement, Pressure Drop and Optimization of Same Geometry

The pin fins play a key role to enhance heat dissipation from compact size devices. An analytical analysis on symmetrical aerofoil shaped pin fins has been investigated. In this investigation it was found that perforated aerofoil shaped pin fin enhances heat transfer rate. Optimized analytical design becomes fruitful in economical, material savings point of view. Also this optimized analytical analysis assists to validate and compare numerical, computational and experimental results. Hence, this analytical approach has been taken prior applying other research methodologies. The prime investigating factors are focused on enhancement of convective heat dissipation flux (qcon.) and coefficient (h), Reynolds number (Re), Nusselt number (Nu), pin fin efficiency (ηpf) and effectiveness (εpf), overall effectiveness (εpf overall), thermal performance factor (TPF) and performance evaluation criteria (PEC). Because of more heat transfer area in compact shaped with optimization of materials. The results show that as far as staggered arrangements of aerofoil shaped pin fin is concern, their heat transfer rate is more, pressure drop (PD) is less, reduction in friction (f) factor and material optimization is more than that of in-line arrangement of same geometry. In this analytical model analysis on aerofoil pin fins arrangement, a hypothesis set that perforated aerfoil pin fin array in staggered arrangement has higher performance comparatively inline arrangements. The obtained calculations and results verify that the set hypothesis on staggered arrangement of aerofoil pin fin array satisfy the hypothesis. For industrial mass production, it is advised to adopt staggered arrangement of perforated aerofoil shaped pin fins