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Senior Project. Vortex Generator for Hydro turbine Karson Wong Johnson ng Snehil Raisinghani. Introduction. Vortex generator for a Hydro Turbine Tide Energy Evaluate Initial Design. Goal. To increase the efficiency of the initial design Hydro Turbine. Design Challenges.

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Presentation Transcript

Senior Project

Vortex Generator for Hydro turbine

Karson Wong

Johnson ng

Snehil Raisinghani

Vortex generator for a Hydro Turbine

Tide Energy

Evaluate Initial Design

To increase the efficiency of the initial design Hydro Turbine

• Gulfstream current with average speed of 1 to 3 knots.

• Vortex generation

• Design Optimization

• Number of vortex channels

• Vortex angles

• Inlet and outlet curves and lengths

• Maximize negative pressure between inlet and outlet

• Rotor foil curves and contours

• Diffuser slot sizes and spacing

• Initial Design

Smooth Funnels

• Axial Flow

• No vortex fins

• Implement vortex streams

• Velocity increase

• Flow Rate = Velocity x Area

• Improve outlet flow

• Vacuum induction effect

• Inlet Function

• Vortex

• Increase Velocity

• Outlet Function

• Vacuum

There are two types of vortices.

-Forced vortex

-Free vortex

The streamlines of the gulf stream follow a straight path.(axial flow)

The aim is to create a vortex via the inlet funnel and fins.

Free Vortex

Forced Vortex

This concept will be used to decide the positioning and contours of the rotor blades, in order to maximize power output.

In order to successfully design a scaled down prototype, dimensional analysis would have to be performed.

Various ratios need to be analyzed.

• Great alternative energy resource

• Long term goals

- To be commercially built

- To connect multiple turbines in series to produce more power

Questions?