STUDI NUMERIK PENGARUH TIPE HEATSINK DAN FAN TERHADAP PENDINGIN DISPENSER MIYAKO

Abstract

Water dispenser developed to help meet the body's fluid needs and maintain human health, therefore, thermoelectric technology is used in the water dispenser as an alternative for cooling water within a specific temperature range. Heatsinks are used to enhance heat absorption and dissipation capabilities in thermoelectric systems, but the performance of thermoelectric systems will decline if the temperature difference between the heatsink and the cooling space is too high. This research aims to determine the influence of fan speed and heatsink type on the Nusselt number. Additionally, it aims to understand the characteristics of fluid flow and the amount of heat dissipated by the heatsink. This research is a numerical study conducted using Computational Fluid Dynamics (CFD) with SolidWorks application. The variations in this research involve two types of heatsinks used: parallel fin heatsink and cross fin heatsink. Furthermore, fan speeds of 2000 RPM, 4000 RPM, and 6000 RPM were used to investigate the effects of heatsink and fan on the Nusselt number, heat dissipation, and fluid flow characteristics. The simulation results using SolidWorks Flow Simulation software indicate that the Type 1 heatsink with a "Straight" fan at 6000 RPM shows good performance in terms of pressure. On the other hand, the Type 3 heatsink with a "Curved" fan at 6000 RPM exhibits good performance in terms of velocity. The Type 2 heatsink with a "Straight" fan rotating at 6000 RPM has the highest Nusselt number, which is 18,61, and is capable of dissipating the most significant amount of heat, which is 5,127 Watts. In conclusion, choosing the appropriate heatsink and fan type according to the system's requirements is crucial to achieve optimal cooling performance.

 Keywords: Heatsink, Fan, Nusselt Number.