On Sep 20, 2011, at 10:14 AM, Peter Heckert wrote:
Am 20.09.2011 19:49, schrieb Horace Heffner:
I think my conclusion was good: "None of this indicates for sure
whether Rossi has anything of value or not. Maybe he does. The
continued failure to obtain independent high quality input and
output energy measurements prevents the public from knowing.
There is one thing that was unfortunately ignored in allmost all
public discussions:
In all demonstrations, January demo, Essen Kulander demo, 3 Ny
Teknik demos, the electrical input energy was not enough to heat
the water to 100° Celsius. (I dont know aout the Krivit demo)
There was without doubt some considerable boiling in all
experiments and so the COP should be larger than 2.
This is mass flow calorimetry.
There /must/ be more energy than the /measured/ electrical energy.
So there is something, lets hope it is not a trick.
Peter
I don't recall at all that there was not enough power to boil the
water in the initial tests. (My memory is not very good though!) Do
you mean there wasn't enough power applied to convert all the water
flow to steam?
I guess one of the problems with making that assertion is not
actually knowing the true flow rate at all times. Mattia Rizzi
observed pump rates on a video which indicated much less than 2 gm/s.
If I recall correctly the Krivit demo was for the most part 1.94 gm/
s, input temp 23°C, and 748 W input, which makes for all the flow
heated to 100°C plus 83 cc/sec steam generated. All that is hard to
know too because apparently Rossi touched the control panel. Manual
adjustment is apparently part of the process, as is changing duty
factors. This is one reason why a good kWh meter would be of use.
A technical problem exists because the thermal mass of the E-cats is
so high. Momentary power readings don't mean very much. Only fast
sampled power measurements integrated to cumulative energy is
meaningful, or first principle energy integrating techniques. Total
energy in vs total energy out for a long period is the meaningful
number.
Best regards,
Horace Heffner
http://www.mtaonline.net/~hheffner/
