INFLUENCE THE RIBS IN NEW MODEL OF CHANNEL PATH ON HYDRO-THERMAL PERFORMANCE IN SERPENTINE MINI- CHANNEL HEAT SINK

Abstract

The aim of the present study is to enhance of heat transfer in mini channel heat sink. To reach the target of this study a new models of mini channel heat sink is proposed the traditional model, model (A) and model (B). Both model (A, B) has straight serpentine mini channel heat sink with inlet at the center, the difference between them is that model(B) has ribs within channel, the diameter of ribs is 1 mm with distance between ribs 5mm. A 3D (ANSYS Fluent program) 2019R3 is used to obtain the numerical outcomes. A good agreement is found when compared the experimental outcomes from the literature review and the numerical results of the traditional model in the current study. Furthermore, the findings demonstrate that the formation of flow has a great impact on heat transfer, Though the model with serpentine straight channel improve the pressure drop, thermal resistance, Nusselt number and the distribution of temperature in the base of heat sink. The overall performance factor (OPF) for new models under study are superior than conventional model. In addition, the average OPF for model (A) is [1.43] and for model (B) is [1.33] as compared with traditional model. As well, model (A) is superior as compared with model (B) by 6.99 % due to the effectual uniformity in the base of heat sink and efficient OPF.