The effect of manifold zone parameters on hydrothermal performance in different shape microchannel heat sink

Mechanical Engineering

Designers are always finding out new ways to improve heat transport techniques in many engineering fields because they can improve the energy utilization efficiency or reduce the weight and size of the heat transfer equipment. Micro channels are current attention for use in microelectronic device, compact heat exchanger, micro heat sink, micro reactor, and micro bio-chips where very high heat transferred performance is considered necessary. This worked is performed for objective to influence of channel geometry or flow passage of microchannel heat sink. For the analyses a three-dimensional Computational Fluid Dynamics (CFD) model was built using the commercial package, FLUENT, to investigate the conjugate fluid flow and heat transfer phenomena in different shape of manifold microchannel for single phase convective flow and heat transfer performance. The present work is focused on laminar flow for different shapes of microchannel fluid flow passage with manifold for single-phase liquid flow. Water has been considered as working fluid. Copper is used as the material of the microchannel heat sink. Three dimensional numerical models is developed and validated to study the effect of geometric parameters such as microchannel depth and width, and operating condition such as inlet velocity of fluid on the performance of manifold microchannel heat sink. The computational analysis is performed on a simple unit-cell model. The temperature distribution at given length is calculated and for different velocity and heat flux for different shape of manifold microchannel.

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.