My review of the Rossi 7 Oct 2011 experiment has been updated.
http://www.mtaonline.net/~hheffner/Rossi6Oct2011Review.pdf
Also, the following sections were added:
VOLUME CALCULATIONS
The Lewan report says: "The E-cat model used in this test was
enclosed in a casing measuring about 50 x 60 x 35 centimeters."
These appear to be external measurements with wrapping, etc.
"After cooling down the E-cat, the insulation was eliminated and the
casing was opened. Inside the casing metal flanges of a heat
exchanger could be seen, an object measuring about 30 x 30 x 30
centimeters. The rest of the volume was empty space where water could
be heated, entering through a valve at the bottom, and with a valve
at the top where steam could come out. "
This gives an external volume of (50 x 60 x 35) cm^3 = 105000 cm^3 =
105 liters. The heat exchanger etc. is (30 x 30 x 30) cm^3 = 27
liters. This should give an internal volume of 105 liters - 27 liters
= 78 liters. The disagrees with Rossi’s prior statements.
Rossi states: “The volume free for the water is about 30 liters, so
that to fill up it are necessary about 2 hours ( the pump of the
primary circuit pumps about 15 liters per hour), but, as a matter of
fact, the water begins to evaporate before the box is full of water,
so usually the “Effect” of the reactor starts before 2 hours.”
Using the photo in the NyTeknik report, an estimate of internal
dimensions can be made. The width of the finned structure is 134
pixels, giving in that line 134 px/(30 cm) = 4.467 pix/cm. The box
width on that line is 209 pix, giving a true dimension of (209 px)/
(4.467 px/m) = 46.8 cm. The length of the finned structure is 253 px,
giving in that line (253 px)/(30 cm) = 8.43 px/cm. The inside length
of the box is 376 px, giving a true length of 44.6 cm. The lip
appears to be 35 px/(4.467 px/cm) = 7.8 cm wide. Judging from the
lip width, the top of the finned structure appears to be about 4 cm
below the lid.
The gross inner volume of the box is (44.6 cm x 46.8 cm x 34 cm) = 71
liters.
The gross volume of the finned structure is (30 cm x 30 cm x 30 cm) =
27 liters.
It looks like about (1/9)*30 cm = 3.3 cm is cooling fins. About 50%
of the 3.3 cm x 30 cm x 30 cm = 3 liters should be water, giving a
total finned structure volume of 27 liters - 3 liters = 24 liters.
The net water occupiable volume of the box is thus 71 liters - 27
liters = 44 liters.
The prior similar E-cat weighed in at 85 kg. The current E-cat
weighed 95 kg before water was added.
ESTIMATING THE PRIMARY CIRCUIT WATER FLOW RATE
The extreme instability of Pout begins at about 169 minutes into the
run. If we assume this means percolator effects begin then the
device should be almost full. It should contain close to 44 liters
of water. The flow rate to accomplish this is (44 liters)/(169
minutes) = 4.34 ml/s or 15 liters per hour. This is a familiar
number as a pump limit, but not as the primary circuit flow rate.
Percolator effects could happen at a lesser volume if ripples are
made in the water level .
If the stated water volume of 30 liters is correct then the flow rate
to accomplish percolator effects is (30 liters)/(169 minutes) = 3 ml/
s or 10.7 liters per hour. This is not consistent with the flow rate
1.5 ml/sec, or 5.4 liters per hour estimated earlier. Note that if
this flow rate is correct then the stored energy calulated in prior
sections is reduced. It is also true that more iron could be used to
increase the thermal capacity, and space for such is available. The
numbers provided here are only for concept checking. A sophisitcated
model and knowledge of actual measurements is needed for an accurate
consistency check. Unfortuantely measurement of flow rate into the E-
cat was not made, even though a water meter was in the circuit.
Best regards,
Horace Heffner
http://www.mtaonline.net/~hheffner/
