Paper Contents
Abstract
Energy is abundantly available in various forms in nature. Flowing water contains kinetic energy and it can be easily harnessed with the help of reaction turbines for lower and medium heads. Water leaving the turbine still has lot of energy, that energy can be further extracted using draft tubes. Design of draft tubes is important as its performance will affect the overall efficiency of hydel power plant. In the present work, the performance of conical draft tube for variation in diffuser angle has been carried out using Computational Fluid Dynamics technique. The analysis has been carried out for draft tube with diffuser angle of 4.0, 4.5, 5.0, 5.5, 6.0 for a fixed height of draft tube. Uisng CFD it has been found that head loss coefficient is low for newly designed geometry. For 5.5 diffuser angle draft tube, both head recovered and efficiency are found to be on higher side as compared to draft tube with diffuser angle of 5
Copyright
Copyright © 2023 Sunita Mohanty. This is an open access article distributed under the Creative Commons Attribution License.
