Re: Generalized energy losses info - Saab Performance Bulletin Board - Saabnet.com
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Confirmed, I was way off on the friction loss. Can anyone explain to me why they have "combustion" separate from "thermal", if thermal is a result of the combustion?
This diagram pretty much discounts the possibility of increasing the fuel efficiency of a 30mpg vehicle to 100mpg. Even if you remove ALL heat loss, you're left with more than 1/3 of the total losses that cannot be changed via fuel management. Wind and rolling resistances, parasitic losses, drivetrain losses, pumping and friction account for 38% of the fuel consumption. In a typical car getting 30mpg, if you magically increased the thermal efficiency to 100%, you're still only going to get 79mpg. In order to get more than that, you're going to have to do something else.
posted by 24.246.55...
Posts in this Thread:
- Vapor Engine can get 100MPG+ thoughts?, TSR, Wed, 30 Nov 2011 10:31:31
- More 100MPG+ thoughts, Paul'sAero, Sat, 10 Dec 2011 11:00:51
- Re: Vapor Engine can get 100MPG+ thoughts?, Dean, Wed, 7 Dec 2011 08:13:39
- Generalized energy losses info, Paul'sAero, Sat, 3 Dec 2011 11:22:36
- Re: Vapor Engine can get 100MPG+ thoughts?, TML , Wed, 30 Nov 2011 18:22:27
- Re: Vapor Engine can get 100MPG+ thoughts?, Simon S, Wed, 30 Nov 2011 10:40:22
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