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al1 (Automotive) (OP)
3 Jan 06 11:35
I'm looking for some help in getting the basic values used in estimating the expansion ratio of regular gasoline i.e. how many times will 1 cubic inch of air/fuel expand when combusted?  Also if 1 cubic inch of air/fuel is combusted at 1 atmosphere what would be the estimated pressure be if it is still contanied in the 1 cubic inch?
Thank you
Al1
CESSNA1 (Mechanical)
3 Jan 06 12:31
AL1:  As a first approximation you can use the perfect gas law of

PV=nRT

and the balanced chemical equation of the combustion.

The balanced equation will give you the amount of the material in the process as well as the ehat liberated.

Regards
Dave


Regards
Dave

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