Improving Heatsink Performance for Thermal Management of Battery and Solar PV by Employing Ternary Hybrid Nanofluids

This study assesses the thermal performance of various MicroChannel Heat Sink (MCHS) designs integrated with a Water-based Ternary Hybrid NanoFuid (W-THNF) for efficient cooling of solar cells and battery packs. Five MCHS configurations with distinct geometric features are analyzed under steady-state laminar flow conditions using finite element-based simulations in COMSOL Multiphysics software. The impact of nanofluid composition, flow Reynolds number (Re), and geometry on Heat Transfer Coefficient (HTC), pressure drop (Δp), and entropy generation is assessed on HTC and Nusselt number (Nu) by estimating the Performance Evaluation Criterion (PEC) value and entropy generation number (N_a). Results demonstrate that W-THNF significantly enhances convective heat transfer and reduces temperature gradients within the MCHS, leading to improved Thermal Uniformity (TU) and lower bottom temperature. Configuration ۲ exhibits the highest convective heat transfer coefficient, while configuration ۳ shows maximum entropy generation due to increased flow resistance caused by a larger number of fins. Nanoparticle volume fraction (φ) and flow rate synergistically decrease entropy generation, improving thermodynamic performance. The proposed MCHS designs reveal superior thermal management capabilities, making them promising candidates for cooling high-power electronic devices.

کلیدواژه ها:

Heat transfer ، Microchannel heatsink ، nanofluid ، Thermal Performance ، Entropy generation