"I love that you've brought this to attention. An extensive database of uncommon but resistant and hardy plants/foods could be developed and organized by climate. Ease of growth and processing should also be taken in to account. I will try to…"
A crash course in changing the world.
Sustainable renewable solar energy.
http://static.ning.com/socialnetworkmain/widgets/index/logo.gif); background-attachment: initial; background-origin: initial; background-clip: initial; background-color: white; background-position: 100% 0%; background-repeat: no-repeat no-repeat; ">So...
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.
Views: 120
-
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.
-
-
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.
-
-
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?
-
-
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.
-
-
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.
-
-
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!
Comment
Latest Activity
Fourth of July on the Lake
This past weekend was the annual celebration at the lake house in Connecticut. It is amazing that the lake is still so clear and beautiful after all these years. The watershed association has done a wonderful job protecting these waters from the damaging effects of development.The wood grill was finally ready to cook on, so we didn't miss the propane tank fueled grill anymore. The food actually tasted fresher than in the past and was easy to keep fueled.Dad was very proud of the solar hybrid…See More
Stinging Nettle
In this blog post I will focus on a plant that is abundant in our nature, and which is immensely nutritious. It's of course the Stinging Nettle. Let's start with the chemical constituents of this plant:37 % Non-Nitrogen-Extracts19 - 29 % Ash9 - 21 % Fiber4 % Fat22 % ProteinOnce the leaves are drid, their protein content can reach an astounding 40 %, which is much higher than beef, which even under the best of circ**stances can never exceed 31 % protein. In addition the Stinging Nettle consists…See More
The meal
It is 7'oclock, I was late home from work due to an assignment that i wanted to get ahead on. By the time I get home I am feeling extremley tired and I cannot be bothered to make a proper meal. I walk to the fridge and open it to see what there is for me to eat. All of the out of date foodstuffs have been automaticaly thrown away by the fridge, they will be recycled tomorrow as animal feed or something. I see i have organic local eggs and some local cheese. Foods are vacc** sealded for easy…See More
Future
FutureToday is 2020/1/1. It is just like yesterday. The war is still continuing. It has started since 2010. In 2010, that year was a horrible year. Almost every energy ran out. Every country’s governments were crushed down at the same time. There were riots everywhere. All of the big company’s bosses were killed xdeadx in the riots. Troops fought each other everywhere. Food was bought up xawayx at once. There were no more food supplies in any shops. The economy was all crushed down. All the…See More
public servants
The exchange works directly for state and public workers and servants. It gives them credit in exchange for the amount of public work they contribute to the community. The more constructive they are based off a base rate the more credit they recieve.
© 2024 Created by Alchemy.
Powered by
You need to be a member of Urgent Evoke to add comments!
Join Urgent Evoke