Indian Journal of Science and Technology

Abstract

Objectives: The research work studied so far doesn’t involve much work on Spiral Micro-channel so the concept of spiral micro channel was proposed. To determine pressure drop and temperature drop with varied flow-rate at constant heat source in spiral micro channel. Methods: The computational heat transfer analysis on Spiral Micro-channel Heat Sink (SMCHS) has been performed with varied mass flow rate of 1-3 kg/hr in two different flow arrangements. One when the fluid Entry at Inner Spiral (IS) and another when the fluid Entry at Outer Spiral (OS). Both the cases are compared at the constant heat input, which was given at the bottom surface of the SMCHS. The CFD analysis determined the point parameters at inlet and outlet of Spiral micro channel. Findings: The computational fluid dynamics analysis shows the less pressure drop and temperature drop results when fluid entry at IS as compared to OS for every flow rate; which is an innovation. The computational results show that pressure drop decreases by 2.39% and temperature drop decreases by 6.99% when fluid entries at IS as compared to OS. Applications: The spiral micro channel has a wide application in the area of electronic cooling; futuristic application is to cool the armor, spot welding etc.
Keywords: Heat Sink, Spiral Micro-channel, Spiral Eye