Clearly your calculations are a bit off. The running time on video is more like 1:20, still greater than drain time for 2 atm, showing there is less than 2atm pressure. But since we don't know for how long the draining continues we dont know how much less. Since the E-Cat is open to atmosphere (by report) we can assume the pressure is 1 atm. Also 1/4 cm seems a bit small for the orifice and drain time would seem to affected by height of water column.
I corrected the run time.
The time to drain goes as 1/orifice_area * sqrt(column_height)
1/4 is the radius -- 1/2cm diameter
At 02:50 PM 9/20/2011, Jouni Valkonen wrote:
Considering Akira's temperature graph, we can take that draining took about 5-7 min.
That's about 23:15 to 23:22
Hmmm .... since the outlet is still open cool air will be sucked past the temperature probe, cooling it.
When it's completely drained this flow will stop, and the thermal mass will cause the air to heat up again.
Tank height 20
Radius 0.25Time 1 Bar 25.72 minTime 2 Bar 1.80 min
Radius 0.30Time 1 Bar 17.86 minTime 2 Bar 1.25 min
Radius 0.35Time 1 Bar 13.12 minTime 2 Bar 0.92 min
Radius 0.40Time 1 Bar 10.05 minTime 2 Bar 0.70 min
Radius 0.45Time 1 Bar 7.94 minTime 2 Bar 0.56 min
Radius 0.50Time 1 Bar 6.43 minTime 2 Bar 0.45 min
Tank height 22.5
Radius 0.25Time 1 Bar 27.28 minTime 2 Bar 2.03 min
Radius 0.30Time 1 Bar 18.95 minTime 2 Bar 1.41 min
Radius 0.35Time 1 Bar 13.92 minTime 2 Bar 1.04 min
Radius 0.40Time 1 Bar 10.66 minTime 2 Bar 0.79 min
Radius 0.45Time 1 Bar 8.42 minTime 2 Bar 0.63 min
Radius 0.50Time 1 Bar 6.82 minTime 2 Bar 0.51 min
Tank height 25
Radius 0.25Time 1 Bar 28.76 minTime 2 Bar 2.25 min
Radius 0.30Time 1 Bar 19.97 minTime 2 Bar 1.56 min
Radius 0.35Time 1 Bar 14.67 minTime 2 Bar 1.15 min
Radius 0.40Time 1 Bar 11.23 minTime 2 Bar 0.88 min
Radius 0.45Time 1 Bar 8.88 minTime 2 Bar 0.70 min
Radius 0.50Time 1 Bar 7.19 minTime 2 Bar 0.56 min
Tank height 27.5
Radius 0.25Time 1 Bar 30.16 minTime 2 Bar 2.48 min
Radius 0.30Time 1 Bar 20.95 minTime 2 Bar 1.72 min
Radius 0.35Time 1 Bar 15.39 minTime 2 Bar 1.26 min
Radius 0.40Time 1 Bar 11.78 minTime 2 Bar 0.97 min
Radius 0.45Time 1 Bar 9.31 minTime 2 Bar 0.76 min
Radius 0.50Time 1 Bar 7.54 minTime 2 Bar 0.62 min
Tank height 30
Radius 0.25Time 1 Bar 31.50 minTime 2 Bar 2.70 min
Radius 0.30Time 1 Bar 21.88 minTime 2 Bar 1.88 min
Radius 0.35Time 1 Bar 16.07 minTime 2 Bar 1.38 min
Radius 0.40Time 1 Bar 12.31 minTime 2 Bar 1.05 min
Radius 0.45Time 1 Bar 9.72 minTime 2 Bar 0.83 min
Radius 0.50Time 1 Bar 7.88 minTime 2 Bar 0.68 min
So ... pick a number (or two!) and draw your conclusions.
