Alan,

It will be interesting to see if your model agrees with mine.  I have had one 
working now for close to a year that demonstrates a COP of 6 when the device is 
at the threshold of instability.  A COP of 3 is much easier to control although 
both must operate within a region which is normally unstable without input 
power modulation.

I drive my model with a pulse width modulated source just as Rossi's actual 
device.  I find that his statements about the operation of his ECAT make sense 
according to the behavior of my model.

I am using a spice model.

Dave


-----Original Message-----
From: Alan Fletcher <[email protected]>
To: vortex-l <[email protected]>
Sent: Thu, May 23, 2013 6:47 pm
Subject: Re: [Vo]:Gary Wright on the Hot Cat paper


> From: "Rich Murray" <[email protected]>
> Sent: Thursday, May 23, 2013 3:38:34 PM
 
> thanks, Peter Gluck -- I notice Gary Wright does not refer to the
> exponential shape of the curves of rise and fall of temperature in
> each 6 minute cycle -- what do your think?

I'm working on the Spice zero'th-order model.  I've got a nonlinear resistor 
model twitching (with a table lookup) --- I just have to plug in the right 
equation.  (And calibrate it).



 

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