Evaporation Driven Self-Sustaining System

[PieEconomics]

Solar Wind Downdraft Tower Validates Greater Than 100:1 Electrical Output to Input Ratio
https://revolutiongreen.tumblr.com/post/170047766365/solar-wind-downdraft-tower-validates-greater-than

Huge improvement over old 2:1 estimate of electrical output to input ratio:

the Downdraft Energy Tower requires about 50% of the turbine's output to pump the water

[ramset]

this is quite remarkable ...I wonder if we have any members out in Arizona who could get some pictures or more info ?

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snip

h30,000 Megawatt Hours will be only 233 Megawatt Hours. Ron Pickett, CEO, commented "Based on a very conservative approach, we originally calculated that approximately 11% of our energy produced would be needed for the pumping of the water. It is exciting now to validate through actual field testing that the energy consumption is less than 1% of the energy projected to be produced by the San Luis facility."
end snip

Thx
Chet K

[gravityblock]

Sahin doesn't agree with you, and I don't either.  He believe the device can be made self-sustaining, as I do.  Here's a small quote by Sahin, "We made a lot of compromises in creating this version in hopes of creating a self-sufficient device.  We know actually that it can be made 100 times more powerful by solving a number of problems."

Reference

Gravock

This video presents highlights from the publication "Spore‐Based Water‐Resistant Water‐Responsive Actuators with High Power Density" at the following link:  https://doi.org/10.1002/admt.201800596

As a result, it is possible to demonstrate spore‐based actuators driven directly with liquid water, which increases the actuation speed and power by nearly 100‐fold!

Gravock

[broli]

This video presents highlights from the publication "Spore‐Based Water‐Resistant Water‐Responsive Actuators with High Power Density" at the following link:  https://doi.org/10.1002/admt.201800596

As a result, it is possible to demonstrate spore‐based actuators driven directly with liquid water, which increases the actuation speed and power by nearly 100‐fold!

Gravock

Wow that is truly one of the most impressive things I have seen on here. This is kind of like the Maxwell demon where the water in this case acts as the demon. The potential of this is huge. And that video is even more impressive, the material reacts almost immediately and resets pretty fast as well. I wonder how easy it is to replicate this is, it seems nothing fancy is being used or that can't be bought off the shelf.


Especially this part is very interesting:

we estimate the specific power of spore-based actuators presented here to be between 3.03 and 5.03 kW/kg. These values are approximately two orders of magnitude higher than mammalian skeletal muscle, which falls between 50 (typical) and 284 W/kg.

The fact that such a simple and especially macroscopic device can generate such huge forces is quite impressive.

Full paper attached.

[gravityblock]

Thanks for the full paper Broli.  IMO, this is the most promising thread on this forum in regards to creating a self-sustaining device!  A 100 fold increase in power density is huge and is a game changer!

Gravock