Blue EnergyOcean Power

(Rack & Rake Wheel)Converting Kinetic Energy Of Fluid

Currents Into Electricity

By

IP Management Pte Ltdwww.LamTengChoy.com

Ocean Power – Rack & Rake WheelScope

• Introduction

• Concept

• Video

• Q & A

• End

Ocean Power – Rack & Rake WheelIntroduction

• The World is facing the continuous challenge of supplying enough energy to fuel economic growth.

• Est. Ocean currents can meet 3000 times the current power needs of the entire World’s population.

• Waves energy alone can potentially produce one third of the World’s electricity supply.

Ocean Power – Rack & Rake Wheel

Concept

M/S IP Management Pte Ltd has invented a double acting Racks & Rake Wheel fluid current energy converter device to tap kinetic energy of Ocean, river and wind currents.

Ocean Power – Rack & Rake WheelMechanical devices

a) Moveable device - Double acting rack

1) Vertical racks2) Curved racks3) Horizontal racks4) Planar circular racks5) Ring racks

Ocean Power – Rack & Rake Wheel

Mechanical devices

b) Fixed device

Rake wheel-generator assembly

Ocean Power – Rack & Rake Wheel Mechanical Action

Rising Wave Falling Wave

Wave Power Reference - Wikipedia, the free encyclopedia

• Waves are generated by wind passing over the surface of the sea.

• As long as the waves propagate slower than the wind speed just above the waves, there is an energy transfer from the wind to the waves.

Wave Power Reference - Wikipedia, the free encyclopedia

Wave power formula

Example: Consider moderate ocean swells, in deep water, a few km off a coastline, with a wave height of 3 meters and a wave period of 8 seconds. Using the formula to solve for power, we get

meaning there are 36 kilowatts of power potential per meter of wave crest.

WAVE ENERGY CONVERTER IN SHALLOW WATER

The maximum power capture of a floating buoy is given by (Matt Folley, et al, 2005 1)

When the motion is highly constrained, r ---> 0, then the power capture is proportional to the incident wave force, not the incident wave power intensity given above. This is evident for shallow water converters where the water depth is less than a quarter of the wave wavelength.

P = ½ F .. x (1- ½ r)

where • F - is the wave force• X - is the amplitude of motion • r - is the ratio of amplitude of

motion to optimum amplitude of motion

1 Matt Folley, Trevor Whittaker, Alan Henry, 6th European Wave and Tidal Energy Conference, Glasgow, UK August 29th - September 2nd 2005

Power Capture of a Floating Buoy

where • - is the applied hydrodynamic damping

coefficient (in Ns/m)• - is the angular velocity (in rad/s)• X - is the amplitude of motion (in m)

2221 XP

2 Evans D. V. (1985) "The Hydrodynamic Efficiency of Wave-Energy Devices", Hydrodynamics of Ocean Wave-Energy Utilization, Lisbon. Springer-Verlag: 1-34.

The power capture of a floating buoy is also given by (Evans, 1985 2)

Ocean Power – Rack & Rake WheelComparative advantages:

• Simple design • Tap energy of different forms of fluid currents.• Inexpensive and easily available parts. • Suitable for mass production • No technological incertitude.

Ocean Power – Rack & Rake Wheel

Main applications:

• Install at locations near coastlines.

Ocean Power – Rack & Rake Wheelhttp://www.lamtengchoy.com/main/?item-videolist/show/42/

Video

Ocean Power – Rack & Rake Wheel

Q & A

Ocean Power – (Rack & Rake Wheel)

The End

ByIP Management Pte Ltd

www.LamTengChoy.com