On Jan 30, 2006, at 8:48 PM, Jones Beene wrote:
From: "Horace Heffner"
This is an indication the door was opened by the blast prior to
the glass shards hitting it. The shards came through with enough
energy to cause widespread injuries. This is only consistent with
the primary energy of the blast being in the 1L-6 incubator, not
the flask.
I think Mizuno had it right when he said: "The effluent hydrogen
and oxygen were mixed in the cell headspace. There 2 ~ 3 cc of
hydrogen at the time, although this is an open cell so only
minimal amounts of gas remain in the headspace. It is possible
that the tungsten cathode may have been exposed to the gas in the
headspace."
Even so - you neglect the major point Mizuno is making
Not at all. In fact in the last post I said: "The sudden heat output
may be an anomaly, but the explosion does not appear to be one."
about the rise in water temperature - captured by his temp. probe
and data logging. If we accept this as accurate:
There was 700 grams of H2O which was heated for only ten seconds.
Mizuno was not using much power, but the heating rate of 700 grams
of water in figure on page 31 shows a rise in water temperature of
60 C in about 10 seconds. This would constitute an energy input of
176,400 Joules!
Page 14 describes the input parameters - 15 volts and 1.5 Amps.
This is a power input of 22.5 watts for 10 seconds but the power
apparently accepted by the water was (DeltaT) (Mass of water) (1
calorie/gram)(4.2Joules/calorie) /10seconds = 60(700grams) (4.2)/10
= 17,640 watts.
That is a gain of 780 for power output versus power input.
Elsewhere he calculates the gain in that same range.
This explosion was NOT due to "just" a few cc of hydrogen in the
headspace,
Of course not, but that few cc, ignited, is plenty to pop the rubber
top and ignite the large volume in the 1L-6 incubator. Or, even just
a sudden boil off is probably enough to expose the electrodes and
cause an ignition.
nor even to that combined with much more outside the headspeace.
The Chart in Fig. 6 in:
http://lenr-canr.org/acrobat/MizunoTanomalouse.pdf
shows a run time of over 10,000 seconds before the explosion. That's
almost 3 hours.
The beaker cap used in the explosion was black and both thin and
thinly tapered compared to the white cap shown in the "before"
photos. It is possible there was a leak in the cap or other leak in
the system, or that hydrogen had accumulated in the 1L-6 incubator
during prior runs. I vaguely recall talk about the recombiner being
removed. Maybe the "plumbing" wasn't put back just right and there
was a leak into the incubator.
The plastic tubing in the post explosion photo
http://www.lenr-canr.org/images/MizunoAccident.JPG
looks to be in too good a condition to have been exposed to so much
energy in so little volume.
Horace Heffner
