Dam Tonight, Atoll Tomorrow

Dams and Kinetic, Potential and Mechanical Energy:

River As Kinetic Energy:

First, consider the 'Dam' part of Dam-Atoll. A dam captures moving river water and stores it all as a lake at a level above the downstream portion of the river. The moving river water is kinetic energy.

Kinetic Energy Transformed To Potential Energy:

Now energy is always conserved. So when, temporarily stopped by the dam, the water ceases to move, its kinetic energy has been converted to potential energy. One part of the potential energy is the water's "wanting" so to speak to plunge down to the downstream portion of the river below at the bottom of the dam—the non-stop pull of gravity on the water to continue its course to the sea. The other part of the water's potential energy is the weight of the water pressing on the bottom of the lake: the water pressure created by the downward pull of gravity.

Potential Energy Transformed Back To Kinetic Energy:

The water's potential energy gets transformed back to kinetic energy either by spilling over the top of the dam, or by flowing through a hole near the bottom of the dam and getting discharged back into the river, eventually to reach the sea. Such a hole takes advantage of both the position of the water above the downstream portion of the river and the intense water pressure near the bottom of the lake.

Kinetic Energy Turned Into Mechanical Energy:

The rapid and intense flow of the water through the hole turns a turbine, which in turn typically generates electricity. In this way, the water's kinetic energy is transformed to mechanical energy. Mechanical energy is a type of kinetic energy: it is kinetic energy that is performing work adapted to some human purpose. To sum up: a dam first turns kinetic energy to potential energy, then back to kinetic energy, then to mechanical energy -- and then finally, in most cases, to electrical energy.(next)

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Worst Pun Of The Year Every Year

Best And Most Concise Description Of Dam-Atoll

The damndest thing that ever came out of an acoustics lab

Fermat's Principle

The Patent for Dam-Atoll is now in the public domain

The Name Dam-Atoll Tells How It Extracts Ocean Wave Energy

Dam-Atoll An Amalgam Of the Concepts Dam And Atoll

Dams And Kinetic, Potential, and Mechanical Energy

River As Kinetic Energy

Kinetic Energy Transformed To Potential Energy

Potential Energy Transformed Back To Kinetic Energy

Kinetic Energy Turned Into Mechanical Energy

An Atoll Bends And Refracts The Approaching Wave

Wave Velocity

Wave Refraction

When the submerged atoll is dome-shaped, it refracts the wave path to its center

The exact shape of the atoll's dome is critical

the atoll acts as a kind of lense concentrating the wave energy

A Wave's Potential Energy Gets Changed To Kinetic Energy By An Atoll

A wave is nothing but energy

Waves And Potential And Kinetic Energy

A deep-water ocean wave is always half potential and half kinetic energy

Wave is all kinetic energy when it breaks on the center of the atoll

Changing A Wave's Kinetic Energy To Mechanical Energy By Means Of A Vortex


Vortex is a fluid flywheel

Dam-Atoll, Vortex, Guide Vanes

This in sum is how Dam-Atoll works

Smoothing out the succession of wave pulses

Advantages Over The Other Ocean Wave Energy Extraction Devices

Dam-Atoll has only one moving part

Thus Dam-Atoll loses no energy in monkey motion

Monkey motion

Competing Ocean Wave Energy Extraction Devices are monkey motion machines

Energy Efficiency

Diffuser Important To Energy Efficiency

Mathematically Optimal Shape Of Dome Crucial To Energy Efficiency

A Future So Bright For Ocean Systems You Will Need Sunglasses

The Patent for Dam-Atoll is now in the public domain

The Opportunity

Leslie Wirt is available for lectures

Leslie Wirt offers consulting services

Video of working scale model of Dam-Atoll

Dam-Atoll Patent

Michael McCormick's Comments On Dam-Atoll

John Isaac's Comments On Dam-Atoll

Links To Books, Articles, And Web Sites Mentioning Dam-Atoll

Excerpts From Scattering And Absorption Of Surface Waves By Arthur's Island

Future Prospects For Dam-Atoll

Dam-Atoll Humor


About the inventor of Dam-Atoll, Leslie S. Wirt

Contact Leslie Wirt


Next: Atolls—Bending and Refracting the Wave


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