Magneto-Hydrodynamic (MHD) electricity from exhaust

[Logic]

Energy Recovery from Engine Exhaust Using Magneto-Hydrodynamic (MHD)
Principle
"...we have fabricated a small device working on MHD
principle, to generate electricity using the engine exhaust
gas..."
https://www.ijert.org/research/energ...V2IS100381.pdf

Not much power but NB that the generator is built to be as quick and cheap as possible and very proof of concept. (India! )

There's a LOT of room for easy improvement to the shown design and MHD generators are as efficient as 60%!
That's got the attention of governments with some pilot plants around I think and 1 or 2 full scale plants in Russia IIRC.

I also think they tested it in the wrong place and should have had it further back where the superheated steam in the exhaust had cooled to wet steam:

For some reason there's a charge separation during the formation of water droplets of different sizes that results in a LOT of volts!
Don't believe me; look at a lightning storm!

Also leaky steam in industry has been causing sparks and/or shocking people for so long there's safety regulation written around it.

In one case people steam-cleaning oil tanker tanks managed to cause a deadly explosion!
H2O+HCs+heat does=H2+CO and, in this case, probably CH4s and stuff to boot

So anyway: here's another idea not to experiment with and to talk to death instead.

[Logic]

Electric Sparks from Steam:

https://www.youtube.com/watch?v=lgihZns60Ew

[Logic]

More info on wet steam producing long sparks:
https://stonehousesafety.com/static-...spray-washing/

ie: Proof it does, but not the why..?

[Logic]

https://apps.dtic.mil/sti/tr/pdf/AD0706643.pdf

Hmmm...!?
The "condensing arrangement" down by Fig. 133 is interesting..?
Omit the word "Metal when reading it" and think steam condensation (charge separation = PD) exactly where you'd want it to happen in a er... 'MHD Exhaust'.

Ye; I'm scratching my head too!

What is at what voltage/PD thx to the charge separation in droplet formation??"
What would be electrically insulated from what? Where?? etc.
Lots of research reqd here just to know if its worth researching!

But I do like the potential:
At these steam condensing temperatures std Neodymium Magnets stay magnets.
They don't turn into unmagnetized blobs of near molten metal!

Perhaps its much easier to just use an electrically insulated heat exchanger from an EGR to boil water and jet that through a MHD on a stationary engine for a start.