Study of the micro-pin fin heat sink with MEPCM suspension and different types of PCMs: A Comparative Study
DOI:
https://doi.org/10.31663/utjes.14.1.612Keywords:
Numerical investigation, Heat sinks, Micro pin fin heat sink, Phase change materials, Electronic cooling, Microencapsulated phase change materialsAbstract
In this paper used a microencapsulated phase change material (MEPCM) suspension and phase change materials (PCMs) in a micro-pin fin heat sink (MPFHS) with three types of fins (circular, triangular and square) are Numerically investigated. The MEPCM suspension used consists of microcapsules composed of PCMs n-octadecane and RT44, and shell materials used poly-methyl-methacrylate (PMMA) and poly-alpha-olefin (PAO). This capsules are suspended in different pure fluids pure oil, pure water and ethylene-glycol at a concentration of (0-20)%. Also, the phase change materials (PCMs) used represented by n-octadecane and RT44. The results obtained display that used MEPCM suspensions as a coolant fluid in micro-pin fin heat sinks in place of pure fluid leads to improved cooling performance of micro-pin fin heat sinks compared with used phase change materials (PCMs) only. Also, unfinned heat sink gives lower pressure drop and high rate of heat transfer coefficient compared with all types of fins used.
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