Other Stuff > Misc / Open
Doubts about EVs
Multiman:
My understanding is that F1 engines are made to such tight tolerances that they have to pump hot water through the cooling system to warm the engine before starting.
Once some expansion has taken place it's safe to start them.
Amazing and beautiful engineering but not very practical on a daily basis.
Athame57:
--- Quote from: Multiman on July 07, 2023, 06:50:11 PM ---My understanding is that F1 engines are made to such tight tolerances that they have to pump hot water through the cooling system to warm the engine before starting.
Once some expansion has taken place it's safe to start them.
Amazing and beautiful engineering but not very practical on a daily basis.
--- End quote ---
Well, I'm glad my Suzuki RG500s had a bit of leeway then, that would have been a pain in the butt! :o
Oddjob:
--- Quote from: Multiman on July 07, 2023, 04:40:48 PM ---Unfortunately if you burn hydrogen in the presence of nitrogen (our atmosphere is 78% nitrogen) it produces nitrous oxides.
It is much cleaner than burning hydrocarbons though.
If you react hydrogen in a fuel cell there is just water as a byproduct and you generate electricity.
--- End quote ---
True but if the engine is made so it lean burns it doesn't produce any or as much NOX but we do get a reduction in fuel efficiency. This may change as we get more knowledge of how to control the burn, ICE though don't really contribute that much NOX, it's burning it in homes that appears to be detrimental. This is of course at present, things may change in even a few years.
K2-K6:
--- Quote from: Multiman on July 07, 2023, 06:50:11 PM ---My understanding is that F1 engines are made to such tight tolerances that they have to pump hot water through the cooling system to warm the engine before starting.
Once some expansion has taken place it's safe to start them.
Amazing and beautiful engineering but not very practical on a daily basis.
--- End quote ---
Likely that's the reality, but unlikely it's derived from the efficiency angle.
They have 266cc cylinders, run on restricted fuel specification, boosted at 50 psi, have maximum fuel flow limits, no increase in fuel allowed over 10500 rpm, make roughly 840 bhp (without electric addition) have to last minimum number of races, try to give that output throughout their service life without significant drop.
The focus is ultimately performance, efficiency stated is just a byproduct and not the reasoning for such tight tolerance.
Laverda Dave:
--- Quote from: K2-K6 on July 08, 2023, 09:10:33 PM ---
--- Quote from: Multiman on July 07, 2023, 06:50:11 PM ---My understanding is that F1 engines are made to such tight tolerances that they have to pump hot water through the cooling system to warm the engine before starting.
Once some expansion has taken place it's safe to start them.
Amazing and beautiful engineering but not very practical on a daily basis.
--- End quote ---
Likely that's the reality, but unlikely it's derived from the efficiency angle.
They have 266cc cylinders, run on restricted fuel specification, boosted at 50 psi, have maximum fuel flow limits, no increase in fuel allowed over 10500 rpm, make roughly 840 bhp (without electric addition) have to last minimum number of races, try to give that output throughout their service life without significant drop.
The focus is ultimately performance, efficiency stated is just a byproduct and not the reasoning for such tight tolerance.
--- End quote ---
Mind boggling technology :o
Navigation
[0] Message Index
[*] Previous page
Go to full version