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Old 05-17-2018, 03:21 PM   #1761 (permalink)
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Quote:
Originally Posted by sendler
Sea Water process: .... Do you really think we can deploy neworks of filters to replace this? Where do we get the energy to pump millions of tons of water through complex filter stacks to get a few tons of minerals.
Who was it who said, "Give me a place to stand and a fulcrum and I can move the world"?


Bet he didn't even know about the Camarinal Sill.

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Old 05-17-2018, 03:53 PM   #1762 (permalink)
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Bet he didn't even know about the Camarinal Sill.
What can we do with this? Partial depth dam across the Straight. Hang our fliters?
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Old 05-17-2018, 04:29 PM   #1763 (permalink)
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Here is a study showing a proposed tidal flow turbine installation at the Straight of Gibraltar. With a peak of 3GW. Average power would be the sine? 2.1 GW average with two periods per day near zero. So if we we could eventually get 100GW peak somehow out of the whole area would be excellent.
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http://oceano.uma.es/pdfproj/fleger_3.pdf
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Old 05-17-2018, 04:30 PM   #1764 (permalink)
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It's a moving electrolyte, isn't it?

A flow battery could power up the global grid. Harvesting solubles is passive. Use a wier/venturi for that.

Simul-post! Maybe we're on a roll.
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Old 05-17-2018, 04:39 PM   #1765 (permalink)
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It's a moving electrolyte, isn't it?

A flow battery could power up the global grid. Harvesting solubles is passive. Use a wier/venturi for that.

Simul-post! Maybe we're on a roll.
Sorry. You had me interested at turbines but a battery is way too far out of the question again. They only work if there is no short circuit path. Complete isolation of one side from the other with a gigantic, membrane. Not happening. But it would be nice to get a few GW out of it with turbines. But I wonder how long they last in raw sea water?
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Old 05-17-2018, 05:07 PM   #1766 (permalink)
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Bummer.

But you're right, mechanical contrivances don't fare well at sea. How about plasma [reverse-]actuators?
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Old 05-18-2018, 03:13 AM   #1767 (permalink)
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Double bummer.

But a gigantic sea battery that simultaneously produces power and extracts metals would be fantastic.
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Old 05-18-2018, 03:46 PM   #1768 (permalink)
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Quote:
Originally Posted by sendler View Post
Energy Reality Project had some decent napkin math. We need to "Run The Numbers" as we try to get out of this jam.
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Letís Run the Numbers Ė Nuclear Energy vs. Wind and Solar | The Energy Reality Project
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Yes, that's exactly the website I was looking for. Looks like it's been subsumed into roadmap to nowhere. I liked the original content better.

Anyhow, there is a discussion on another forum that I wanted to link that site to. Many people seem to think the solution to GW is simple; that if only everyone put solar panels on their roof and drive an EV, the problem would be solved.
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Old 05-18-2018, 05:50 PM   #1769 (permalink)
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Anyhow, there is a discussion on another forum that I wanted to link that site to. Many people seem to think the solution to GW is simple; that if only everyone put solar panels on their roof and drive an EV, the problem would be solved.
That's nice and all, but.... People need to be willing to make their lives better, not just put a bandage on a problem. Starting with coming to peace with the natural world. It's time for truth and reconciliation.


Vertical Gardens


http://www.naturalbuildingblog.com/living-structures/


https://www.designboom.com/architecture/top-10-architecture-projects-of-2016-that-integrated-nature-12-12-2016/
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Old 05-18-2018, 11:14 PM   #1770 (permalink)
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Many people seem to think the solution to GW is simple; that if only everyone put solar panels on their roof and drive an EV, the problem would be solved.
This is beacause no one has ever educated us on the concept of embodied energy. They think that if they put up enough solar panels to disconnect their house from the grid, and have enough production to completely provide for all the charging needs of an electric car so as to not buy any gas, and heat with wood, that they are 100% renewable. But this is still way less than half of their energy footprint that they are participating in. Food at the store has immense energy tied up in it's production and transportation. The store itself was made and operates with great amounts of energy. The roads are made of energy. The hospital, School and office buildings keeping track of the infrastructure. All made from and constantly consuming energy. And the car and batteries, and invertors and panels are all made of energy and will all need to be rebuilt eventually.

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