Heat Transfer Enhancement in Spirally Corrugated Tube
Passive technique have been examined on heat transfer enhancement to improve the involving equipment especially in thermal transport devices. This technique exhibited significant effects when employed in heat transport devices. Corrugations which used in many engineering applications such as heat exchanger, chemical reactor and refrigeration systems considers as a passive technique. Corrugations provide effective heat transfer enlargement because it combined the features of extended surfaces, turbulators and artificial roughness. Therefore, A Computational Fluid Dynamics (CFD) simulation of fluid flow and heat transfer analysis of low Reynolds number in spirally corrugated tubes of horizontal orientation are presented in this paper. Constant wall heat flux condition was applied with water as a working fluid. Reynolds number range 100-1300, a spirally corrugated tubes were examined and the results compared with standard smooth tube. Results show a heat transfer enhancement range of 19.6%-71.3% with appreciable pressure drop of 19.6%-71.3%.
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