Numerical investigation and optimisation of solid-solid phase change material composite-based plate-fin heat sink for thermal management of electronic package

被引:10
|
作者
Midhun, V. C. [1 ]
Maroliya, Mayank [1 ]
Saha, Sandip K. [1 ]
机构
[1] Indian Inst Technol, Dept Mech Engn, Mumbai 400076, India
关键词
Phase Change Material; Solid; -Solid; Enthalpy porosity method; Thermal Conductivity Enhancer; Response Surface Methodology; Heat sink design; MELT CONVECTION; PCM; PERFORMANCE; NANOFLUID;
D O I
10.1016/j.applthermaleng.2024.123183
中图分类号
O414.1 [热力学];
学科分类号
摘要
Phase Change Material based Thermal Management Systems show promise in electronic packaging systems for safe operation, acting as a thermal storage element to prevent sudden temperature surges, enhancing operational time and mitigating electronic system failures. Therefore, the meticulous design of a solid-solid phase change material (SSPCM) based heat sink with fins is imperative for effective electronic thermal management by improving its safe operational time. This study performs a numerical analysis of two-dimensional transient heat transfer for the SSPCM-based plate-fin heat sink using the modified enthalpy porosity method, where the plate fins serve as Thermal Conductivity Enhancers (TCEs). Neopentyl glycol with 6% (w/w) Copper oxide nanoparticle is used as the SSPCM composite. Enhancement ratio based on safe operational time at different power levels (2-6 W) with different percentages of TCE and fin count recorded variation from 1.32 to 13.7. The TCE integration is more effective at higher power levels. The optimisation of SSPCM-based heat sink design for maximum safe operational time is accomplished through Response Surface Methodology. The significance of the TCE fraction, number of fins, heat generation rate, and interaction effects over the safe operational time are observed. The correlation for safe operational time as a function of TCE volume fraction, fin count and heat generation rate is developed. TCE volume fraction possesses the highest influencing factor over safe operational time at lower and higher power levels compared to fin count. At 2 W and 6 W, a maximum change in safe operational time is observed from 72.7% at 2 W to 83.45% at 6 W. The heat sink with 0.262 volume fraction of TCE and 11 fins is the optimised design that can provide the desirable safe operational time for the tested range of power levels.
引用
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页数:20
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