Am 24.11.2011 20:36, schrieb Peter Heckert:
Am 24.11.2011 20:10, schrieb Peter Heckert:
Btw, it is interesting to see in figure 6 that the differential
steepness at 10:36 abruptly and exactly doubles.
It looks as if a second 300W heater was activated. This is enough for
some boiling.
If there was water overflow this would be sufficient to explain all
effects.
They will have pretty dry steam in the remaining volume of the tower,
but most of the water is not evaporated.
Another possibility would be a termostat-valve in the ecat, that closes
at 60° and partially blocks the water flow. If the waterflow is reduced
by 50%, this would give the same effect.
The pump noise would increase more or less, because the maximum pressure
rating is exceeded, but the frequency would probably not decrease.
Unfortunately they did not weigh the water reservoir, otherwise they
would have noted it.
Did the lecture possibly reveal more details than their old travel report?