[TheForge] preheating forge blower air

[Jeff Harding]

  Intercooling serves to provide more oxygen per volume or air
aspirated, as you pointed out.  The reason it helps an internal
combustion engine is that the volume is limited to the piston stroke.
You have to get creative to get more oxygen, i.e. intercooling,
supercharging...

   For a forge, if you need more oxygen, turn up the speed on the
blower, You are not limited in volume. I think the point of not
cooling the fire at the point of the work by providing hot air is
valid.  However as already pointed out, it's doubtful that it is more
efficient, you pay for the heat regardless of where you direct it.

   On the other hand... I also wonder that circulating the air around
a cast pot wouldn't extend it's life...

   Jeff   ><>

 Dodge experimented with Intercooled aspirated car
> engines on the principal that colder air is denser and will give
more
> oxygen for the same volume.  The HP did increase, so it worked for
them.
>          Is there something else going on that makes preheating for
forge
> combustion good and bad for auto combustion?