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Re: highest compression for propane


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Posted by MLPANKEY on October 09, 2012 at 05:06:30 from (152.85.8.33):

In Reply to: highest compression for propane posted by buickanddeere on October 08, 2012 at 20:01:06:


buickanddeere said: (quoted from post at 20:01:06 10/08/12) Ever heard of a reciprocating engine making power

on the compression stroke?

Power is what happens on the power/expansion

stroke.

" Power" is the mean average pressure exerted on

the piston top during the power stroke.

Expansion ratio is just as important as peak

pressure at TDC.

There are diminishing returns when increasing

compression, up to no power advantages.
The piston being drove down on the power stroke is driving a piston up on the compression stroke. The gains on compression do get porpitionally smaller as compression goes up for instance 8.1 changed to 12.1 will show a higher gain than 12.1 to 16.1 but theres still a gain in power. When the power gain gets so proportionaly low its basically non existant there still gains in overall torque. The old science for every action theres equall or greater reaction.

This post was edited by MLPANKEY at 05:09:16 10/09/12 2 times.



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