On Fri, 22 Apr 2011 08:09:23 -0700, D7666 wrote:

On Apr 22, 3:53Â*pm, wrote:

Internal combustion engines don't convert heat to work. The work is
done by the pressure of the gas from the chemical reaction. Heat is a
useless byproduct of this reaction that has to be got rid of.

I suggest you study thermodynamics andn especially the Otto Cycle and
the Diesel Cycle.

There's a reason they're all collectively known as "heat engines".

And to state that "the work is done by the pressure of the gas" and then
go on to say that "Heat is a useless byproduct" suggests that the very
concept of equations of state (starting with PV = NkT) has passed someone
by.

--
From the Model M of Andy Breen, speaking only for himself.