Cesar, without wishing to go into this too much on this forum, the flash point is the temperature at which the fuel emits enough vapour into the atmosphere for a spark to ignite it. A change in flash point doesn't change the amount of energy produced by the fuel. For example, diesel contains additives that increase the flash point, but these don't affect the energy produced by the fuel. I'm not being clever - it's in my copy of the Bible - the Bosch Automotive Handbook (I remembered where I'd seen the above info.)
Surprisingly (for me anyway) regular petrol, premium petrol, aviation fuel, kerosene and diesel all produce the same energy per kilo (around 43 MJ/kg), all being within 0.8 MJ/kg of each other.
If you think about it, your teacher's description is sort of the same - the piston etc. collides with the shock waves previously mentioned on the compression stroke.
Cripes, how'd I get onto this...
Cheers !
Stuey
Surprisingly (for me anyway) regular petrol, premium petrol, aviation fuel, kerosene and diesel all produce the same energy per kilo (around 43 MJ/kg), all being within 0.8 MJ/kg of each other.
If you think about it, your teacher's description is sort of the same - the piston etc. collides with the shock waves previously mentioned on the compression stroke.
Cripes, how'd I get onto this...
Cheers !
Stuey