Am 16.09.2011 22:13, schrieb Alan J Fletcher:
At 12:26 PM 9/16/2011, Alan J Fletcher wrote:
To maintain an internal pressure of 3 Bar (needed for 130C) you'd
need a pretty small orifice : less than 1/32 inch ?.
http://www.engineeringtoolbox.com/steam-flow-orifices-d_1158.html
(Unfortunately, that's in engineering units .. I'll look for a metric
version.)
I re-found the metric version for pressure drop in a tube:
http://www.engineeringtoolbox.com/steam-pressure-drop-calculator-d_1093.html
This is what I used to calculate the pressure drop through the
March/April ecat.
Suppose the internal pressure is 3 bar, and the eCat is a tube (as in
March/April) of about 1 inch diameter
Here the flow is 10 kg/hr (assuming all gas) -- so the pressure drop
would be 1 kPa (1 Bar) per 100m -- or only
3/100 = 0.03 Bar for 3 meters.
I'm still looking for the 'orifice' needed to create 3 Bar internal
pressure.
The previous versions all had a pressure relief valve.
It could be that he (ab)used the pressure relief valve for the
demonstration to generate some overpressure, but he dont want to tell us.
Possibly he will not create overpressure in the 1MW system. We dont
know. Only Rossi knows.
So if you have the guts and go into this big 1 MW box under full
operation then your health and live is subject to god's grace and Rossis
skills if something unexpected happens.
I would not go inside after having seen the video....
Peter
