Optimization of Microchannel Heat Sink Design for High-Power Electronic Cooling Applications

Abstract

The continuous advancement of high-power electronic devices and compact computing systems has significantly increased the demand for efficient thermal management technologies capable of dissipating large heat fluxes while maintaining operational reliability. This study presents the optimization of microchannel heat sink design for high-power electronic cooling applications to improve heat transfer efficiency, thermal stability, and cooling performance. The proposed research framework integrates computational fluid dynamics (CFD), thermal analysis, and optimization techniques to evaluate the influence of microchannel geometry, flow characteristics, and material properties on heat dissipation behavior. A computational methodology was employed to analyze temperature distribution, pressure drop, fluid flow behavior, thermal resistance, and convective heat transfer performance under varying operating conditions. Parametric optimization studies were conducted for different channel dimensions, aspect ratios, coolant flow rates, and fin configurations to identify optimal design parameters that maximize cooling efficiency while minimizing pumping power requirements. Simulation results demonstrated significant improvements in heat transfer coefficient, temperature uniformity, and thermal management performance compared with conventional cooling systems. The optimized microchannel heat sink configurations also exhibited reduced thermal resistance, enhanced coolant distribution, and improved operational stability under high heat flux conditions. Furthermore, the study identified critical geometric and flow parameters affecting cooling efficiency and energy consumption in compact electronic systems. The findings conclude that optimized microchannel heat sink designs provide an effective and reliable solution for advanced electronic cooling applications requiring high thermal performance and energy-efficient operation. The proposed methodology contributes to the development of next-generation thermal management systems for power electronics, data centers, microprocessors, and high-performance computing technologies.