wrote in message
oups.com...

Mike Rapoport wrote:
wrote in message
oups.com...

Mike Rapoport wrote:
Water injection does not increase efficiency, it lowers it. The water
goes
in as a liquid and goes out as a gas. The energy to do that comes
from
burning fuel.

Same thing is true of a steam engine. In a steam engine it is
the phase-change of the water that makes it possible to convert
the heat from burning fuel into mechanical energy.


Yes but the steam engine takes the high-energy water vapor and produces
mechanical energy while returning the water as a low energy liquid.


Actually the conversion to mechanical energy ceases before the vapor
condenses. Condensate in a turbine or even a steam piston is
undesireable.


Yes and No.

A properly designed condenser produces a partial vacuum which
greatly increases both the power and efficiency of the engine by
allowing the steam to expand much more in the engine

Keith