wind powered water pump - curiosity machine class
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Hands-on Science and
Engineering at Pasadena
Public Library
Oct. 15, 2014
Energy cannot be created or
destroyed; it can only be converted
from one form to another.
Build a wind-powered water pump!
The shape and size of a wind
turbine, number of blades, and
angle of the blades will all vary
the amount of energy it is able
to make. Your design will
convert rotational (or circular)
movement of your wind turbine
and transfer it into linear
reciprocating (or up and down)
motion using a crank.
(from Curiosity Machine
website:
https://www.curiositymachine.o
rg/challenges/54/)
*Windpumps were first used by Muslims in the Middle East and Central Asia in the 9th century
*The first known instance of using wind to power a machine was by the Greek inventor Hero of Alexandria in the 1st century? He invented a wind powered organ with a wind wheel that powered a piston and forced air into pipes (see left).
*Dutch windmills were not only about making flour. Many windmills also pumped water out of the ground, which was necessary because most of the Netherlands is below sea level.
p. 17, Wind
Power by Ian
Graham,
published by
Raintree
Steck-
Vaughn
Publishers
Daniel Halladay, who in 1854 invented the wind pump that was used in farms across America for almost a century.
Halladay faced numerous challenges. How to make his windmill simpler? Easier to run? Affordable?
He came up with one clever idea after another. He abandoned the idea of sails in favor of vanes.
He fabricated a “rudder”—a tail, so to speak. As the wind shifted direction, it kept the mill pointed right into it.
Before long he conceived a governor that adjusted the mill’s speed automatically—no danger of spinning out of control and destroying itself. He made it more and more efficient. So good that the windmill could run itself.
And he perfected the pump that would suck up the water, and how the energy should be transferred from the spinning vanes at the top down to the pump.
From “Daniel Halladay, the Remarkable Connecticut Inventor I’ll Bet You Never Heard Of,” by John Guy LaPlante. http://valleynewsnow.com/2011/09/daniel-halladay-the-remarkable-connecticut-inventor-i%E2%80%99ll-bet-you-never-heard-of/
I didn’t
want to
use
cardboard
because
it’s tough
to cut. But
foam…
doesn’t
work.
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