Urgent Evoke

A crash course in changing the world.

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in Order to first get my idea out there, I need to lay the ground work.


In this link, Bill Gross shows a heat engine modeled after the Sterling engine which has long gone from our world. The idea is that he managed to create a relatively efficient heat engine (about 09:30 min into the clip). after some looking up, I found that it can be rigged to water, and that about a quarter liter of hot water (80 centigrade) can power a small fan for a few min.
From this point I designed a system that uses the sun to heat water and for the heat engine to work constantly. all that is needed is for there to be closed pipe system filled with water. at the bottom it would split to smaller pipes (like a capillary system in the body) and be painted black in order to heat up fast (solar water heaters do this easily for 150 liters of water). above the heating system would be the heat engines (or cooling system) which would make electricity while cooling the water.
Hot water goes up, cold water goes down. and so the hot water would constantly replace the cold water, keeping the heat engine hot and making power.
finally, in this process a water current is generated (as the hot and cold water keep replacing each other). this currant can turn a propeller and generate even more power.
The system would take up just about the amount of space traditional water heaters do (4 square meters) but produce more power than photo voltaic cells of the same size, because the sun is used for heat and not electricity.

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Tags: ACT3

Comment by Nick Heyming on March 22, 2010 at 4:51pm
Over time though, wouldn't it be hard to maintaint two separate temperatures of water? It seems like they'd achieve equilibrium after a short while and stop producing energy...
Comment by Omri or something on March 22, 2010 at 5:06pm
not at all.
in its simplest form, you could just have a circular hose. on half you would paint black, and place on the floor in the sun; the other half you would paint white, and place a little higher in the shade. the difference in temperature would make the hot water go up, cool down, and come down on the other side back to the hot part (as hot water rises and cold water drops).
Thus, current is created.
Now, instead of just painting the top part white, you could take the heat out using a heat engine and generate electricity. the faster cooling would also make the water flow faster and may also be able to move an impeller, generating more electricity.
Comment by Omri or something on March 22, 2010 at 5:18pm
I agree.
I simplified it here for demonstration, but I have already built little "greenhouse" boxes to heat the gas around the pipe as fast as possible.
Comment by Nick Heyming on March 22, 2010 at 9:14pm
Cool, makes sense! Thanks for the knowledge share.
Comment by Patricio Buenrostro-Gilhuys on March 23, 2010 at 4:54am
Really cool Omri!!! How long does it take to build one?
Comment by Omri or something on March 23, 2010 at 7:32am
to prove the concept I can to it for in 20 min and 10 bucks.
to make a proper working model, I don't know yet. the turbines are giving me trouble. its harder to create one than I thought, so I'm trying to buy one.
Comment by Michele Baron on March 26, 2010 at 5:58pm
Hi Omri,
Great idea. Finally found the site I had read once: http://blog.sundrumsolar.com/ for cooling the panel, transfering the energy:
"Typically a SunDrum collector can capture about twice the energy of a PV panel in the form of hot water. By cooling the PV panel the SunDrum collector also has the effect of improving the PV panel’s efficiency, typically by about 10%. So a SunDrum collector improves the electrical output of the PV panel and provides you with hot water...
A SunDrum Solar total energy system increases the electricity output from 18% to 20% and captures 37% of the sun’s energy in the form of hot water. The SunDrum system captures 57% of the Sun’s energy compared to 18% for a PV only system..."
This is a simple system--supersaturated (molten) salt solutions can produce more efficient power-production--but costs are greatly increased.
It will be great for everyone if you can develop your ideas.
Comment by Omri or something on March 26, 2010 at 6:55pm
it's a bit complicated for me. but I 95% of homes in Israel have a simplified version of this system powering their shower heaters.
Comment by Michele Baron on March 26, 2010 at 7:50pm
Effective use of solar energy will permit innovations for a long time to come, probably. Meanwhile--it is wonderful to be able see some utilization of renewable energy tecnology on such a broad scale in Isreal--95%! wow!

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