REFLECTOR: Advance Turbine Power ne Innodyn

[Wayne Lanza]

Well Guys,
  As Keith puts it, I stand corrected regarding the Solar. I will look 
for the real numbers if
anyone's interested. However the number for the Allison are, per the 
manual, correct.

Thanks Keith,
Wayne Lanza
___________________________________________________________________
On Oct 10, 2004, at 10:43 PM, KeithHallsten wrote:

> The universal gas law is  P V = n R T.  We are looking at a change in
> temperature due to a change in pressure and volume, so R, the 
> universal gas
> constant, and n, the amount of gas involved, can be dropped out.  We 
> then
> see that the product of pressure and volume is directly proportional 
> to the
> absolute temperature, assuming heat leaking out of the system is small
> (which is reasonable because compression is very rapid).  We certainly
> expect a significant reduction in volume with the 3.5 times increase in
> pressure, so the increase in absolute temperature will be much less 
> than the
> compression ratio.
>
> If we assume an initial temperature of 80 degrees F (about 540 degrees
> Rankine), an increase to 750 degrees F (about 1210 R)  would be a 
> factor of
> 2.2.   This would imply a change in volume of only 2.2/3.5 = 0.63 
> would be
> associated with the 3.5 times increase in pressure, which seems
> unreasonable.  I think the temperature difference is probably 
> overstated, as
> Richard implied.
>
> Keith Hallsten