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Date:         Sun, 25 Mar 2012 20:41:11 -0400
Reply-To:     David Beierl <dbeierl@ATTGLOBAL.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Beierl <dbeierl@ATTGLOBAL.NET>
Subject:      Re: Fuel consumption in different gears - how does the energy /
              fuel work?
Comments: To: Roland <syncronicity1@GMAIL.COM>
Content-Type: text/plain; charset="us-ascii"; format=flowed

> the energy lost by compressing the fuel/air charge and operating > the valve train, ... - these parasitic losses all increase > more-or-less linearly with increasing rpm.

I believe I misspoke here. I think the total energy to actually compress equal masses of charge will not increase linearly with rpm, but remain at least somewhat the same. I'm hedging a bit ("somewhat") because the energy aspects of compressing gases in the real world is a more hairy subject than I know how to tackle.

And apparently it works differently if you get a diabatic to do it for you. ;-)

Yours, David


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