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Ponderable
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Linkenheim

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https://phys.org/news/2024-09-ocean-limits.html

There is a report on a great paper which shows that some helpful simplifications can create wrong impressions. It is lways advisable to further the picture.

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Fast and Curious

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@Ponderable
Yeah, the 2 d version of our representation of waves V a new 3d version, much harder to do computationally.

Hey Pond, did you catch this bit about conversion of NH3 to H2 at lower temperatures using electric fields?

https://phys.org/news/2024-09-temperature-ammonia-hydrogen-conversion-electric.html

Ponderable
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Linkenheim

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@sonhouse said
@Ponderable
Yeah, the 2 d version of our representation of waves V a new 3d version, much harder to do computationally.

Hey Pond, did you catch this bit about conversion of NH3 to H2 at lower temperatures using electric fields?

https://phys.org/news/2024-09-temperature-ammonia-hydrogen-conversion-electric.html
Actually electrosynthesis is done by a colleague of mine.
I fear that we will have to wait until we see considerable amounts.

Same for the plasma synthesis.

And we do have a problem, that editors of scientific journals want an outlook, so when people are able to produce some grams, they still have to put it into perspective of potential industrial application.

I am mainly a guy trying to get lab results to pilot which is difficult and sometimes to production range which is a pain.

s
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@Ponderable
Ah, too bad it is in gram numbers now. What are the problems upscaling such processes? I would think the electric field would not be a problem, just using a longer wire or plate, but I would assume a larger volume would increase the current flow needed to goose the process but I didn't see anything about current requirements. I would assume it would not work with electrets as it just gives a bit of push but no possibility of much current flow and is smells to me like there would be a current flow involved but have no Idea for the lab demo flow? Microamps? Milli? Or what voltage they are touting. If 10,000 volts would be needed that would complicate such devices for sure, lot of arcing would happen when contaminants meet the wiring I would think.

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@sonhouse said
@Ponderable
Ah, too bad it is in gram numbers now. What are the problems upscaling such processes? I would think the electric field would not be a problem, just using a longer wire or plate, but I would assume a larger volume would increase the current flow needed to goose the process but I didn't see anything about current requirements. I would assume it would not work wit ...[text shortened]... e such devices for sure, lot of arcing would happen when contaminants meet the wiring I would think.
So oe of the problems is the distribution of current density over lareg electrodes. So normally one does stacks with a lot of smallish electrodes. But then the problem of flow distribution arises. Especially if you make Ammonia you decrease the volume of gas considerably, which is not helping 😉

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@Ponderable
So the evenness of current flow is the key to going out of lab demo's?
Do you know the shape of the electrodes or the voltage and current?

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