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Search: Posts Made By: Logic
Forum: EcoModding Central Today, 12:32 AM
Replies: 21
Views: 1,704
Posted By Logic
Hmmm... good point. However: The quench...

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...
Forum: Aerodynamics 03-13-2024, 08:04 AM
Replies: 10
Views: 387
Posted By Logic
Ah here we go: See the "Fan Blade Out' bits. ...

Ah here we go:
See the "Fan Blade Out' bits.
https://core.ac.uk/download/pdf/70600281.pdf

Not exactly what I had in mind: I'm thinking more solid circle, with 'thinner' fan slots.
ie: Way...
Forum: Aerodynamics 03-13-2024, 07:40 AM
Replies: 10
Views: 387
Posted By Logic
A study of wheel/rim aerodynamics...And an idea.

Just a study of wheel/rim aerodynamics I found and thought may be of interest here.
https://core.ac.uk/download/pdf/211225703.pdf
Nothing new really.

I'm interested in sucking some of the air...
Forum: EcoModding Central 09-25-2023, 10:07 AM
Replies: 21
Views: 1,704
Posted By Logic
"...Use of In-Cylinder Catalysts In order to...

"...Use of In-Cylinder Catalysts
In order to investigate the application of the concept of
catalytic combustion, various catalysts, such as copper,
chromium, and nickel, were coated on the...
Forum: DIY / How-to 11-26-2022, 11:26 AM
Replies: 70
Views: 11,215
Posted By Logic
??? HowTH do I site references to something...

???
HowTH do I site references to something thats never been done before..? :)

This is what I know:
The inner CV's outer shell 'stands still' relative to the engine and gearbox, rotation...
Forum: DIY / How-to 11-25-2022, 01:37 AM
Replies: 70
Views: 11,215
Posted By Logic
Easiest way I can think of: You get E-bikes...

Easiest way I can think of:
You get E-bikes with torque sensors,
ie: They sense how much torque you are putting in and then assist an adjustable amount, from say 10% to 90%.|

They also do regen:...
Forum: EcoModding Central 11-08-2022, 07:52 AM
Replies: 21
Views: 2,420
Posted By Logic
A link to links:...

A link to links:...
Forum: Fossil Fuel Free 10-25-2022, 07:31 AM
Replies: 14
Views: 1,328
Posted By Logic
I just posted a link to a blow torch warming up...

I just posted a link to a blow torch warming up where one can see the difference between a fuel burning as a liquid and as a gas.

The same trick was used on old tractors that started on petrol,...
Forum: Fossil Fuel Free 10-25-2022, 06:47 AM
Replies: 14
Views: 1,328
Posted By Logic
Hmmm... that woke the 'conspiracy theorist' in...

Hmmm... that woke the 'conspiracy theorist' in me... :)

I had another look and found:
https://www.econology.info/Chambrin-water-injection-engine/

It's a direct translation that makes little...
Forum: EcoModding Central 10-10-2022, 02:35 AM
Replies: 14
Views: 852
Posted By Logic
As I understand it; Carbon Fiber is extremely...

As I understand it; Carbon Fiber is extremely flexible.
More so than glass
BUT
if you tie a knot in 1 fiber; the fiber will break as soon as the knot is pulled tight.

ie:
Carbon Fiber is...
Forum: Motorcycles / Scooters 10-10-2022, 01:44 AM
Replies: 9
Views: 1,383
Posted By Logic
Reverse: The range of complete wheel-hub-motors...

Reverse:
The range of complete wheel-hub-motors for scooters is quite comprehensive, making a petrol electric (with reverse) hybrid possible.

Quad front end:
I believe he went this way because...
Forum: EcoModding Central 10-06-2022, 03:41 AM
Replies: 14
Views: 852
Posted By Logic
Reed valve in intake = 'infinitely variable' cam timing

If you have a 'very hot' racing intake cam in your engine,
BUT
with a reed valve/s just behind it
then
You get self adjusting 'infinitely variable' cam timing...

Well not infinitely variable...
Forum: General Efficiency Discussion 10-05-2022, 05:19 AM
Replies: 58
Views: 15,574
Posted By Logic
Yes, according to my reading and IIRC: Any...

Yes, according to my reading and IIRC:
Any white paint is better than any other colour from my reading.
Even silver!
If the pigment is super white and great at reflecting IR; it's better, but not...
Forum: Motorcycles / Scooters 10-04-2022, 11:40 AM
Replies: 9
Views: 1,383
Posted By Logic
This guy mods a scooter to an enclosed recumbent....

This guy mods a scooter to an enclosed recumbent.
Where he's modding the frame should give you some ideas.
https://www.youtube.com/watch?v=f708GtL6tns
Forum: EcoModding Central 10-04-2022, 07:59 AM
Replies: 29
Views: 3,747
Posted By Logic
After further reading I would say that...

After further reading I would say that Anti-Reversion is also NOT Unicorn Corral material:
There is just too much about it on the net.
I would suggest some research, assuming your opinion of me...
Forum: EcoModding Central 10-04-2022, 06:38 AM
Replies: 29
Views: 3,747
Posted By Logic
For the PWTB: NO it is not. Plz feel free to...

For the PWTB: NO it is not.
Plz feel free to discuss that with David Vizard himself.
(You have heard of him haven't you..?)
He's active on YouTube and various forums IIRC.
Forum: General Efficiency Discussion 10-03-2022, 02:19 AM
Replies: 58
Views: 15,574
Posted By Logic
Necroing this to say the type of white pigment is...

Necroing this to say the type of white pigment is important:

IIRC
This guy, who does the research, then makes it DIY, found that Calcium Carbonate (Whitewash) pigment was best at reflecting the...
Forum: EcoModding Central 10-03-2022, 01:34 AM
Replies: 29
Views: 3,747
Posted By Logic
I think the Anti Reversion Trap is about...

I think the Anti Reversion Trap is about disrupting any backward flow aerodynamically.

Venting them into a specific sealed volume may make them more like PWTBs, but you WANT the pulses in the...
Forum: EcoModding Central 08-27-2022, 09:35 AM
Replies: 16
Views: 1,422
Posted By Logic
Tuned length exhausts for low rpm/economy would...

Tuned length exhausts for low rpm/economy would have longer, thinner pipes aerohead. (and a matched cam and intake)

You aren't going to find one at your local exhaust shoppe.
(in most the pipes...
Forum: EcoModding Central 08-26-2022, 05:41 AM
Replies: 13
Views: 1,017
Posted By Logic
My humble apologies; I misread that. ...

My humble apologies; I misread that.


Statically; something 'Too good to be true' that is true... comes along every 30 years. (I like to look for these)
Despite the Cognitive Dissonance these...
Forum: EcoModding Central 08-25-2022, 05:25 PM
Replies: 13
Views: 1,017
Posted By Logic
https://link.springer.com/article/10.1007/s40997-0...

https://link.springer.com/article/10.1007/s40997-021-00455-z

https://academic.oup.com/icb/article/51/1/203/636829

https://link.springer.com/article/10.1007/s40997-021-00455-z
...
Forum: EcoModding Central 08-25-2022, 05:10 PM
Replies: 13
Views: 1,017
Posted By Logic
I'M claiming!??? WhatTH do you mean I'M...

I'M claiming!???
WhatTH do you mean I'M claiming!?

Some Aero Engineer was wandering why whales had these Bumps on the LEADING EDGE of their fins, so he looked for a dead whale and tested a fin....
Forum: EcoModding Central 08-25-2022, 03:38 AM
Replies: 16
Views: 1,422
Posted By Logic
With all the engines doing this nowadays, they...

With all the engines doing this nowadays, they don't seem to be a problem freebeard....
Forum: EcoModding Central 08-24-2022, 08:40 AM
Replies: 16
Views: 1,422
Posted By Logic
Water cooled exhaust manifold: better economy

This is one of those 'Little Nuggets' of information I always make a note of, but as its only one person saying so, this may well be better off in the Unicorn Corral..?

Quoting SMOKEY44211:
"Many...
Forum: EcoModding Central 08-24-2022, 06:00 AM
Replies: 22
Views: 1,467
Posted By Logic
Er..? I dont get it freebeard? You want to...

Er..? I dont get it freebeard?

You want to cut charging while accelerating and thats when you'd want to turn on an electric turbo..?
Or do you mean those exhaust driven alternator/charger things?
Showing results 1 to 25 of 45

 
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