New Mars Forums

Void

Member

Registered: 2011-12-29

Posts: 6,469

Re: Geothermal and Geostored Energy

Well, this is new to me, I understand that others may be well aware of it.

https://undecidedmf.com/why-co2-heat-pu … f-cooling/
Quote:

Why CO2 Heat Pumps Are The Future Of Cooling
Matt Ferrell By MATT FERRELL and JON OKUN 33 seconds ago

Most worlds we might access could use something like this perhaps.

On Mars, it is possible that this could be helpful to heat ice covered bodies of waters lower layers. 

Fresh water can have slightly warming water at the bottom than the top, in winter like conditions.

For water with salt gradients, you can heat the bottom very warm, even hot.

Solar ponds: https://en.wikipedia.org/wiki/Solar_pond
Quote:

90 °C is attainable.

So, I think that you could have enternal>Top Water heat pumps to work with the cooler top water.
Then you could have Top Water>Bottom water.  Then you could have Bottom Water>To Heating Needs.

The cold top water could also be used for cooling industrial processes this would be an "External Source".
This could at its source be photovoltaic, and/or Nuclear Fission.
You could also of course as an external source solar thermal.

Of course, as has been indicated elsewhere and elsewhen, the waters of such lakes can support life, particularly with further assistance.  The upper layers can collect some sunlight, and certainly you can put artificial lighting and chemicals into any of the waters.

The above could probably be installed wherever there is a sufficient source of water, but in particular, I like the polar ice caps for long term.  I anticipate that the long summers will be the time of collection of heat, and the long winter nights will be a time to run heat engines efficiently, using CO2.

For the North Cap, you would simply melt all the ice and over time the water would spread over a very large surface.
For the Southern Cap, you would to some degree use natural basins to make a matrix of "Lakes", but in some cases use ice to create long term ice dams.

For worlds like the Moon, sintered rock domes could be of a hot and cold variety.  The Moon probably has enough CO2 for this, and more Carbon could be hard landed to facilitate expansion of the methods.

Many other worlds have plenty of Carbon or can import it.

Done

Last edited by Void (2023-09-12 09:27:02)

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Done.

SpaceNut

Administrator

From: New Hampshire

Registered: 2004-07-22

Posts: 28,135

Re: Geothermal and Geostored Energy

Is the future of energy ... pouring water on hot rocks in the ground?

Void

Member

Registered: 2011-12-29

Posts: 6,469

Re: Geothermal and Geostored Energy

Well, this is boring: https://www.bing.com/videos/riverview/r … &FORM=VIRE  Quote:

13 miles down and 1000 degrees! Hot enough for you?
YouTube
Just Have a Think
121.2K views
1 month ago

Maybe something like that could work on Mars.

I like to give hope in a world where the "Panic Vendor" are continuously at work.

Done

Last edited by Void (2023-10-15 16:01:11)

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Done.

Void

Member

Registered: 2011-12-29

Posts: 6,469

Re: Geothermal and Geostored Energy

https://www.msn.com/en-us/money/other/g … r-AA1kF92y
Quote:

Google’s new geothermal energy project is up and running
Story by Justine Calma  •
3h

Quote:

This new project actually was built on the outskirts of an existing geothermal field where, in Terrell’s words, “there’s hot rock, but there’s no fluid.” To generate geoethermal energy there, Fervo had to drill two horizontal wells through which it pumps water. Fervo pushes cold water through fractures in the rock, which heats it up so it can generate steam back at the surface. It’s a closed-loop system, so the water gets reused — an important feature in a drought-prone region like Nevada.

So, like Eavorloop, this is closed loop, but they use fracking.

Looking at emerging tech, I have t wonder if we could do something like a CO2 geothermal on Mars.

Done

Another article:

https://www.msn.com/en-us/money/other/n … a5b25&ei=5
Quote:

The Associated Press - Business News
The Associated Press - Business News
New Google geothermal electricity project could be a milestone for clean energy
Story by By JENNIFER McDERMOTT  •
4h

Done

Last edited by Void (2023-11-28 11:16:34)

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Done.

Void

Member

Registered: 2011-12-29

Posts: 6,469

Re: Geothermal and Geostored Energy

Well, I would like to try to fold this into #353 and #354 posts here: https://www.msn.com/en-us/news/technolo … r-AA1kBHcv
Quote:

A millennial start-up founder who’s turning carbon emissions into rocks lays out how he’ll eliminate 1 million tons by 2030—and what a great mentor Bill Gates’s Breakthrough Energy has been
Story by Eleanor Pringle  •
1d

What I suggest is not entirely like the above, but what if we could drill wells as per this idea with microwaves? http://newmars.com/forums/viewtopic.php … 15#p214815
Take the outputted dust waste and bind CO2 to it?

Then make that into some kind of useful object(s).  Perhaps structural objects, perhaps thermal storage objects.

The drilling would then provide a well, and the material to bond CO2 into.  The waste rock would serve a function.

Granted it may not tolerate very high temperatures as that might drive the CO2 out of it again, but it might be useful.

Done

 

Last edited by Void (2023-11-28 11:43:07)

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Done.

SpaceNut

Administrator

From: New Hampshire

Registered: 2004-07-22

Posts: 28,135

Re: Geothermal and Geostored Energy

New Google geothermal electricity project could be a milestone for clean energy

A drill rig stands at a Fervo Energy geothermal site under construction near Milford, Utah, 400-megawatt project

Fervo pumps cold water down an injection well, then over hot rock underground to another well, the production well. The path between is created by fracking, or fracturing the rock. The water heats up to nearly 400 degrees Fahrenheit (200 degrees Celsius) before returning to the surface. Once there, it transfers its heat to another liquid with a low boiling point, creating steam.