International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 03 | Mar 2023
p-ISSN: 2395-0072
www.irjet.net
Performance Analysis of savonius hydro turbine using CFD simulation Niteen Choudhary1, Purushottam Sahu2, Ghanshyam Dhanera3 1Reseach scholar, BM College of Technology, Indore
2Professor and HEAD BM College of Technology, Indore 3 Professors, BM College of Technology, Indore
---------------------------------------------------------------------***--------------------------------------------------------------------Abstract - The primary goal of this study is to experimentally analyse the turbine's maximum efficiency. The goal of this research is to analyse the performance of a Savonius turbine utilised as a hydro turbine using computational fluid dynamics (CFD) simulations and experimental data. This project is primarily based on the renewable energy system.
Key Words: Fluid dynamics, hydro turbine, modelling, performance, and simulation, along with computational fluid dynamics 1. INTRODUCTION The current era is the era of energy. Energy can be produced by the wind, tides, sun, geothermal heat, biomass, including farm and animal waste, as well as human excrement, which is known as unconventional energy. All of these resources are renewable or limitless and don't harm the environment. Additionally, they don't demand heavy use. Currently, the world uses up to 20,000 billion Kwh of energy, of which 70% is generated by conventional sources and the remaining 30% by sources such as hydropower, geothermal, biomass, solar, wind, and atomic energy. About 16% of this 30% is created through the kinetic energy of falling or streaming water, which is then converted into power.
2. Lift Force Performance Model 3.1 Let's assume that (L) is the lifting force, which acts in the direction of the fluid flow's normal. This is explicable using the governing equation. L=1/2 C_(L) ρAV^2……………………………………… (4.1) Where A is the area of the blade air foil, is the lift coefficient, and is the density of water. Pull Force Drag force is the name for the force that operates in the direction of flow. D represents the drag force. This force is mostly caused by the fluid's viscosity. This can be stated using the formula D=1/2 AC_d (U-V).^2……………………………… (4.2) where speed is V, drag force is D, fluid velocity is U, and drag coefficient is Cd. Where speed is V, the fluid's velocity is U, the drag force is D, and the drag coefficient is Cd. Typically, the lift and drag coefficient values are estimated provisionally and compared to the Reynolds number. In Fig. 3.2, a region of a sharp edge at span I is indicated, together with the associated speeds, powers, and edges. The edge of the relative liquid speed to the plane of revolution is denoted by, and the relative liquid vector at span r is denoted by Vrel. L and D, which are guided opposite and parallel to the related liquid as appeared, speak to the resulting lift and drag powers.
Fig 3.1 Forces Act on Blade [26]
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