I also saw temperature excursions during my sealing tests. The swings I
saw were as much as 20 degrees C at 1 second sampling interval, with a
period of 10-30 seconds. My tube contained only air at 10 bar and 700 C,
and no 'fuel', so I think these swings are at least partially due to
convection patterns and possibly resonant pressure standing waves in the
hot gas.
The heater power also wanders over a range of 1-2%, due to instability
of the variac carbon brush on the transformer wire. The CCI Compact
Fusion controller used in the Lugano test does have an optional constant
power control mode. Most phase-angle controllers don't offer this option.
AlanG
On 1/18/2015 9:48 PM, Axil Axil wrote:
So sorry, please excuse me but I have developed an opinion. These
heater power failures are caused by the LENR reaction and if not
immediately countered, these power drops will delay the onset of the
LENR reaction. A 5 seconds response time to counter is far to long a
time delay to increase the current flow to the heater. I don't believe
that MFMP counters this heater behavior at all since they have no
constant power circuit mechanism in their heater power supply. Like
MFMP, the Russian experimenter sees temperature variations of up to
100C. This is very primitive an unsophisticated experimentally. A
nanosecond might be enough of a response time lag to counter the heat
circuit current drop. This unusual superconductor onset behavior is
causing long startup times for the onset of the LENR reaction. I hope
that Brian Ahern will develop constant power circuitry to add elegance
to his experiment to greatly increase the response time for the onset
of the LENR reaction and thereby increasing experiment turnaround times.
