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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

Senior Project

Vortex Generator for Hydro turbine

Karson Wong

Johnson ng

Snehil Raisinghani


Introduction
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
Design Challenges

  • 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


Conceptual design
Conceptual Design

  • Initial Design

    Smooth Funnels

    • Axial Flow

    • No vortex fins


Design of the inlet funnel
Design of The Inlet Funnel

  • Implement vortex streams

  • Velocity increase

    • Flow Rate = Velocity x Area


Design for the outlet funnel
Design For The Outlet Funnel

  • Improve outlet flow

  • Vacuum induction effect


Final conceptual design
Final Conceptual Design

  • Inlet Function

    • Vortex

    • Increase Velocity

  • Outlet Function

    • Vacuum


Vortex
Vortex

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.


Velocity distribution
Velocity Distribution

Free Vortex

Forced Vortex


Angle of attack
Angle of Attack

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


Prototype scaling
Prototype Scaling

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

Various ratios need to be analyzed.


Conclusion
Conclusion

  • Great alternative energy resource

  • Long term goals

    - To be commercially built

    - To connect multiple turbines in series to produce more power


Thank you
Thank you

Questions?


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