On 6/10/2013 12:18 AM, Craig wrote:
The input power is not simply heat. The primary component is some type
of electrical oscillator; and I don't think we've been told what that
is. Craig
Maybe it takes something to ignite it, but the fact that the COP is not
fixed at 6 but can be varied to infinity (at thermal run-away) indicates
that the oscillator thing is not required for continuing operation once
the reaction gets going.
On 6/10/2013 1:00 AM, David Roberson wrote:
You need to understand the complexity of Rossi's ECAT in order to see
how your last paragraph will not work. His ECAT is either heading
toward thermal run away ...
If it is capable of true thermal run-away, then it can simply be held on
that knife edge - neither being allowed to run-away, or cool down, with
a control system. This should be just as easy as keeping an inverted
pendulum vertical against its continual tendency to fall one way or the
other - an exercise done by virtually every student of control
engineering. (In fact there is a continual small oscillation about the
balance point, the level of which depends on the noise floor of the
primary sensor and the closed loop bandwidth. But to all intents and
purposes it simply sits stably in a continual state of being about to
fall over.)
Also, it is not such a simple task to put together a system that is
self running.
As I understand it, the system already self-runs. The problem is that
it is dominated by positive feedback that makes it either want to
run-away if it gets too hot or cool down if it gets too cold. Simply
wrapping a negative feedback control system around it to counteract the
positive and keep it at the right temperature solves this problem.
You might ask yourself why the reactors in Japan had such a hard time
when the input power was interrupted by the Tsunami. ...
I am not suggesting the power for the control system and cooling fan be
derived from the heat output! They should be powered from the mains in
the normal manner. I can't imagine any sceptic being fool enough to
suggest that the reactor was being kept red-hot by the blast of cold air
blowing over it!
Many of us have issues with his demonstrations, but the evidence that
he has something functioning is strong.
I felt the evidence was strong also, but as years go by and a
self-runner (which should be as easy as adding an off-the-shelf
temperature controller) is never demonstrated - one really begins to
wonder why not!
