Nickel Plating piston tops etc: more timing advance

[Logic]

Originally Posted by Isaac Zachary

The problem is that at the boundry layer of the combustion gasses it is pretty much impossible to get that high of temps. That's why you end up with unburnt fuel. The coolness of the metal surface (200 - 300 °F is cool in terms of starting and maintaining combustion) quenches the flame front causing it to not reach the very edge.

In a perfect world we'd have a 100% insulating surface with zero thermal mass on all the surfaces in a combustion chamber.

Hmmm... good point.
However:
The quench distance when burning hydrogen is 0.5mm vs 2-2.5 mm for petrol/diesel.

ie: If the surfaces are producing a tiny amount of hydrogen the boundary layer becomes more hydrogen rich the closer you get to the surface.
So now;
your quench distance decreases; producing more surface heat and thus more hydrogen in a positive feedback loop.

IMHO 'the proof's in the eating' as can be evidenced from my earlier link where this idea WORKED! And worked well..!!!
You did read the study..?

Certainly well enough to make coating said surfaces (cheap/easy) worthwhile.

[Logic]

Originally Posted by freebeard

This video on Fuel From The Air suggests Cerium Oxide as a catalyst. At 1500 degrees (combustion chamber temps?) it turns the CO2 in the air into syngas.

As to how you'd get it to adhere to combustion chamber, I have no clue.

A quick look points to it being a solid lbricant and possibly soluble in hydrocarbons.
A quick search points to it being a good solid lubricant:
https://link.springer.com/article/10...49-020-01340-7

And possibly soluble in fuel..?

ie: A possible fuel additive..?

[Logic]

Originally Posted by Logic

A quick look points to it being a solid lubricant and possibly soluble in hydrocarbons.
A quick search points to it being a good solid lubricant:
https://link.springer.com/article/10...49-020-01340-7

And possibly soluble in fuel..?

ie: A possible fuel additive..?

All the above seem to work be true:
Soluble.
Lubricant.
CO2 to Syngas.

Problem is I cant find any besides in expensive glass polish here.
Can this be found in the 1st world by anyone?

[Logic]

Originally Posted by freebeard

This video on Fuel From The Air suggests Cerium Oxide as a catalyst. At 1500 degrees (combustion chamber temps?) it turns the CO2 in the air into syngas.

As to how you'd get it to adhere to combustion chamber, I have no clue.

Originally Posted by Logic

A quick look points to it being a solid lubricant and possibly soluble in hydrocarbons.
A quick search points to it being a good solid lubricant:
https://link.springer.com/article/10...49-020-01340-7

And possibly soluble in fuel..?

ie: A possible fuel additive..?

All the above seem to work be true:

• Soluble.
• Solid Lubricant.
• CO2 to Syngas (H2 and CO which burns) catalyst.

Problem is I cant find any besides in expensive glass polish here.
Can this be found in the 1st world for a decent price by anyone?

[Piotrsko]

Did a google search, but ran into a couple of issues: Thom Cat isn't available anymore

Which one? Theres a couple of choices on the oxide: O3, O4 maybe O5 (think the O5 is bogus) dont do chemistry, never have, never will, not my pay grade.

What form? Solid (crystal?), powder, nano particles, liquid (with assorted vehicles)

How much at what cost with what assurance it's a valid buy? Couple hundredweight is got all sorts of transport costs associated with hazmat, suspect 2kilos could be done US Post, dont know transportation options/availability where @logic is located.

What is a decent price? Didn't get a purchase request

[Logic]

Originally Posted by Piotrsko

Did a google search, but ran into a couple of issues: Thom Cat isn't available anymore

Which one? Theres a couple of choices on the oxide: O3, O4 maybe O5 (think the O5 is bogus) dont do chemistry, never have, never will, not my pay grade.

What form? Solid (crystal?), powder, nano particles, liquid (with assorted vehicles)

How much at what cost with what assurance it's a valid buy? Couple hundredweight is got all sorts of transport costs associated with hazmat, suspect 2kilos could be done US Post, dont know transportation options/availability where @logic is located.

What is a decent price? Didn't get a purchase request

No idea about O3 or O4 etc.
One would have to look at what is used in the current reactors.
Also which is a solid lubricant. If its not; it's out.

I would guess we'd be looking at nano particles as we want to put them in suspension in hydrocarbons as a fuel additive to get the CO2 and steam formed during combustion to turn back into CO and H2 fast enough to be of use during said combustion.

I'm in South Africa so transport costs to me are HIGH and there's a very good chance the powder will... 'disappear' soon after landing in the country.
If not; all sorts of fake fees, levies, duties and fines will be demanded again and again as the parcel passes from one 'person' in the transport chain to the next.
I'm speaking from experience here.

(Yes the New South Africa the rest of the world was/is so happy about is fast turning into a ****-hole, just like what happened to the rest of Africa.

You'd think recent history might sway popular opinion in the direction of a reality check, but it seems that as long as it's not them having to live unemployed and knee deep in garbage, flies, potholes and sewage with little water and electricity, 'good has triumphed!' and everyone can just move on from that little victory, with 'never a backward look')

ie: As much as I'd love to get Cerium Oxide myself; its not going to happen and I am hoping someone else here might try this.
Failing that I will look into separating cerium oxide from whatever else is in glass polish, which involves finding out what the 'else' is for a start. I'll see what I can find.

Not much would be needed to experiment with in fuel.
If the price is such that cost outweighs savings (if any) the whole experiment ends right there.

[Logic]

Oh; never mind the above; it's already being done:

Transformation of Cerium Oxide Nanoparticles from a Diesel Fuel Additive during Combustion in a Diesel Engine
https://pubs.acs.org/doi/10.1021/acs.est.6b03173

What are the Limitations of Using Cerium Oxide in Fuels?
https://www.azonano.com/article.aspx?ArticleID=5374

"...The study scientists noted that by adding cerium oxide nanoparticles to diesel fuel, boosts fuel efficiency,.."


NB that there is already a commercially available additive called Envirox
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4066369/

"...we confirmed that the addition of Envirox additive to an ultralow sulfur diesel fuel resulted in a reduction of fuel consumption per unit electricity generated (Figure 1). The fuel savings were at the lower end of the 4–10% savings range...

increasing Envirox concentrations 10-fold (the 10× fuel) caused further reductions in fuel consumption and in emissions..."


Sigh... It'd be nice to be the 1st to think of something for a change!
But NB the negative health effects.

[Logic]

Investigation on effect of cerium oxide additive in waste plastic oil fueled CI engine

In this study, the effects of incorporating cerium oxide into diesel and WPO blends were investigated to determine the potential of the blend as a fuel additive.
The study aimed to assess engine-performance, emission, and combustion properties of the blend.
The experiments utilized a single-cylinder diesel engine, and researchers prepared two different blends of WPO with 25% WPO in diesel and 50% WPO in diesel.
Cerium oxide was added to these blends at concentrations of 25 ppm and 50 ppm using an ultrasonicator.
The results demonstrated that increasing cerium oxide content in the blend (50 ppm) led to reduced CO, HC, and NOx emissions at higher loads.
For instance, B50 + 50 ppm exhibited lower CO and NOx emissions, while B25 + 50 ppm demonstrated lower HC and smoke emissions.

Furthermore, raising the CeO2 content from 25 ppm to 50 ppm resulted in a 3% increase in brake thermal efficiency.
Moreover, cerium oxide positively impacted combustion and performance properties of the blends.
Among the tested blends, the B50 + 50 ppm combination showcased the highest brake thermal efficiency, optimal air-fuel ratio, and the lowest specific fuel consumption.

In conclusion, employing cerium oxide as a fuel additive in diesel-WPO blends offers a promising approach for realizing a sustainable and environmentally friendly future.

https://www.sciencedirect.com/scienc...05844024021777


(That brings up another subject: The pyrolysis of plastics:

If you can load up a cartridge with waste plastic that fits into and is heated by your car exhaust; you get a good bit of free fuel.
Normally the released gas is cooled and separated into diesel, petrol etc in a distillation tower.
But in this case; keeping them all as a gas is more practical as all fractions will then be/remain combustible. It also saves a ton of weight and space.

You also get to enjoy the pleasure of stopping every 30? minutes to run around scavenging for waste plastic and burning your hands somehow loading it into your modded exhaust.
You also don't want to scavenge any PVC IIRC and how does one know the difference.?