Mechanism of micro-explosion of water-in-oil emulsified fuel droplet

[Logic]

NB
This is interesting for people like pgfpro who actually swing spanners at engines
and/or
people who like reading science papers.
If you aren't willing or able to do at least one of the above; you're in the wrong place. Leave now!

This is interesting in that:

• The water in a fuel water emulsion 'explodes' into steam, atomizing the fuel better, resulting in better combustion etc.
• The required emulsion can probably be accomplished easily with a high speed stirrer or piezoelectric pond mister.
• I assume the cooling effects normally seen from water injection also apply, without the extra complexity.

Mechanism of micro-explosion of water-in-oil emulsified fuel droplet and its effect on soot generation
https://www.sciencedirect.com/scienc...60544219321838
https://sci-hub.ru/https://www.scien...60544219321838

Effects of water content on evaporation and combustion characteristics of water emulsified diesel spray
https://www.sciencedirect.com/scienc...06261918308882
https://sci-hub.ru/https://www.scien...06261918308882

(I haven't read them fully yet, so can offer much more of an opinion yet)

[freebeard]

Leaving now.

[Logic]

Originally Posted by freebeard

Leaving now.

LOL!

You can come back!
Seems to be a thing, with a quite a lot of YouTube content.

https://www.youtube.com/results?sear...mulsion+diesel

[Logic]

A review of water-steam-assist technology in modern internal combustion engines
https://www.sciencedirect.com/scienc...52484721007071

Most interesting is; Inject steam from waste heat into the combustion stroke just after the std bang has done its thing at 20-25 degrees ATDC.

As in; car/engine makers think it's interesting.
Problem is buyer resistance to: "Are you saying not only do I have to fill up with gas but water too!"
ie: Paying half as much for half as much gas is considered 'more expensive'due to the 'extra trouble'.

They could put a radiator in the exhaust to condense the liter of water produced per liter of fuel burned, but that 'condenses' acids and rusts out the exhaust unless they go expensive alloys.
So it's; pay less up front and more at the gas station and no water fillup inconvenience as usual.

NB that stock, into intake, water injection DOES NOT work on a stock engine.
It works by suppressing knock when you want to send the compression ratio through the roof by head etc skimming or a turbo.

[freebeard]

I noticed 4.2.1. A six-stroke internal combustion engine cycle. It shows a conventional valve-in-head arrangement.

It might be combined with the Porsche six-stroke engine. That one uses one of my favorite mechanisms -- the hypocycloid drive to expose additional ports at the bottom of the [sixth?] stroke.

www.news9live.com: Porsche Patents Six-Stroke Engine: Double the Bang, Double the Fun!

Porsche has patented a six-stroke engine design aimed at improving fuel efficiency and reducing emissions. This innovative engine adds two extra strokes to the traditional four-stroke cycle, creating more power and a more complete fuel burn. However, the complexity of the design raises questions about its practicality and future use in Porsche’s vehicles.