Dave, I think you we are both in agreement with the initial post of Ed's
thermal analysis,
http://www.mail-archive.com/vortex-l%40eskimo.com/msg80803.html but it does
not mention the difference between the destructive test in open air and the
unit in normal operation which is constantly bathed in
, May 25, 2013 7:16 am
Subject: re: [Vo]: ECAT Drive PWM Issues
Dave, I think you we are both in agreement with the initial post of Ed’s
thermal analysis,
http://www.mail-archive.com/vortex-l%40eskimo.com/msg80803.html but it does
not mention the difference between the destructive test in open
Sent: Saturday, May 25, 2013 9:36 AM
Subject: Re: [Vo]: ECAT Drive PWM Issues
Fran, my model takes into account the rate of heat transfer out of the device
by using a parameter that simulates a thermal positive feedback loop. And, as
you suggest this depends greatly upon the rate of heat
techniques.
Andrew
- Original Message -
From: David Roberson
To: vortex-l@eskimo.com
Sent: Saturday, May 25, 2013 9:36 AM
Subject: Re: [Vo]: ECAT Drive PWM Issues
Fran, my model takes into account the rate of heat transfer out of the device
by using a parameter that simulates
Sent: Saturday, May 25, 2013 9:36 AM
Subject: Re: [Vo]: ECAT Drive PWM Issues
Fran, my model takes into account the rate of heat transfer out of
the device by using a parameter that simulates a thermal positive
feedback loop. And, as you suggest this depends greatly upon the
rate of heat
: Sat, May 25, 2013 12:47 pm
Subject: Re: [Vo]: ECAT Drive PWM Issues
Dave,
Does this model allow a stable energy production regime to exist when, after
initiation via initial heating has begun, the device can be run at zero input
power, and regulation to prevent runaway is achieved
be.
Andrew
- Original Message -
From: David Roberson
To: vortex-l@eskimo.com
Sent: Saturday, May 25, 2013 10:30 AM
Subject: Re: [Vo]: ECAT Drive PWM Issues
Andrew,
My model demonstrates that a periodic waveform is required in order to keep
the ECAT within stable
-l vortex-l@eskimo.com
Cc: Edmund Storms stor...@ix.netcom.com
Sent: Sat, May 25, 2013 1:12 pm
Subject: Re: [Vo]: ECAT Drive PWM Issues
I like your approach, Dave. To fit reality, you need to take into account two
major variables. These are the diffusion rate and the solubility of H in the
Ni
at a photo of a
resistor overheating.
Andrew
- Original Message -
From: Andrew
To: vortex-l@eskimo.com
Sent: Saturday, May 25, 2013 10:43 AM
Subject: Re: [Vo]: ECAT Drive PWM Issues
Dave,
You therefore answer in the affirmative - i.e. it looks possible in principle
...@att.net
To: vortex-l vortex-l@eskimo.com
Sent: Sat, May 25, 2013 1:43 pm
Subject: Re: [Vo]: ECAT Drive PWM Issues
Dave,
You therefore answer in the affirmative - i.e. it looks possible in principle
to operate with sporadic negative power input (cooling) and at zero input
power, once
AM
*Subject:* Re: [Vo]: ECAT Drive PWM Issues
Fran, my model takes into account the rate of heat transfer out of the
device by using a parameter that simulates a thermal positive feedback
loop. And, as you suggest this depends greatly upon the rate of heat
generation with temperature
been?
I suspect that the results would have been much the same in either case. The
device was out of control.
Dave
-Original Message-
From: Andrew andrew...@att.net
To: vortex-l vortex-l@eskimo.com
Sent: Sat, May 25, 2013 1:50 pm
Subject: Re: [Vo]: ECAT Drive PWM Issues
I should add
: Saturday, May 25, 2013 10:51 AM
To: vortex-l@eskimo.com
Subject: Re: [Vo]: ECAT Drive PWM Issues
I should add that I don't believe that currently we have any hard evidence for
the existence of thermal runaway occurring spontaneously. The (in)famous photo
of the device in meltdown was taken under
, and as such lends itself to
numerical optimisation techniques.
Andrew
- Original Message -
From: David Roberson
To: vortex-l@eskimo.com
Sent: Saturday, May 25, 2013 9:36 AM
Subject: Re: [Vo]: ECAT Drive PWM Issues
Fran, my model takes into account the rate of heat transfer out
-
*From:* David Roberson dlrober...@aol.com
*To:* vortex-l@eskimo.com
*Sent:* Saturday, May 25, 2013 9:36 AM
*Subject:* Re: [Vo]: ECAT Drive PWM Issues
Fran, my model takes into account the rate of heat transfer out of the
device by using a parameter that simulates a thermal positive feedback
[mailto:andrew...@att.net]
Sent: Saturday, May 25, 2013 10:51 AM
To: vortex-l@eskimo.com
Subject: Re: [Vo]: ECAT Drive PWM Issues
I should add that I don't believe that currently we have any hard evidence
for the existence of thermal runaway occurring spontaneously. The (in)famous
photo
, 2013 9:36 AM
*Subject:* Re: [Vo]: ECAT Drive PWM Issues
Fran, my model takes into account the rate of heat transfer out of the
device by using a parameter that simulates a thermal positive feedback
loop. And, as you suggest this depends greatly upon the rate of heat
generation
of view, and as such lends itself to
numerical optimisation techniques.
Andrew
- Original Message -
From: David Roberson
To: vortex-l@eskimo.com
Sent: Saturday, May 25, 2013 9:36 AM
Subject: Re: [Vo]: ECAT Drive PWM Issues
Fran, my model takes into account the rate of heat transfer out
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