:39 PM
*Subject:* Re: [Vo]:Re: Constant temperature Operation of ECAT?
Come on Andrew. You need to research your old books on control
theory. Where are you mounting that fixed voltage output
thermocouple you speak of? The last time I checked the output
depended upon
: [Vo]:Re: Constant temperature Operation of ECAT?
We are totally at cross-purposes here; if we were in the same room, this crap
wouldn't happen. So here's the deal. I'm considering the scenario whereby we
operate the heating system to bring the device just past the stable
temperature; further
- Original Message -
From: David Roberson
To: vortex-l@eskimo.com
Sent: Monday, May 27, 2013 7:00 AM
Subject: Re: [Vo]:Re: Constant temperature Operation of ECAT?
I suppose that it would be easier in person to discuss this issue, but that
is not available. Yes, we
of
thermal run away.
Dave
-Original Message-
From: Andrew andrew...@att.net
To: vortex-l vortex-l@eskimo.com
Sent: Mon, May 27, 2013 1:03 pm
Subject: Re: [Vo]:Re: Constant temperature Operation of ECAT?
Glad we're back in sync. Although there's definite evidence for thermal runaway
25 years
operating at a COP of 3 has risk of
thermal run away.
Dave
-Original Message-
From: Andrew andrew...@att.net
To: vortex-l vortex-l@eskimo.com
Sent: Mon, May 27, 2013 1:03 pm
Subject: Re: [Vo]:Re: Constant temperature Operation of ECAT?
Glad we're back in sync. Although
, 2013 10:18 AM
Subject: Re: [Vo]:Re: Constant temperature Operation of ECAT?
The earlier posts by Rossi on his blog mention many cases where thermal run
away happened. Most of these were when he was developing the earlier
versions of his mechanism. The fact that thermal run
-
From: David Roberson
To: vortex-l@eskimo.com
Sent: Monday, May 27, 2013 10:49 AM
Subject: Re: [Vo]:Re: Constant temperature Operation of ECAT?
Rossi keeps this information secret. It is unfortunate that he does this,
but that is his nature. I would love to see a number of measurements
-
From: Andrew andrew...@att.net
To: vortex-l vortex-l@eskimo.com
Sent: Mon, May 27, 2013 2:23 pm
Subject: Re: [Vo]:Re: Constant temperature Operation of ECAT?
Sure, the reference would be the set point, and that's simply the operating
temperature. Notionally you set this as high as possible
positive feedback is grossly over-simplified.
Andrew
- Original Message -
From: David Roberson
To: vortex-l@eskimo.com
Sent: Monday, May 27, 2013 11:44 AM
Subject: Re: [Vo]:Re: Constant temperature Operation of ECAT?
I do not follow how the set point can be the operating
, May 27, 2013 3:22 pm
Subject: Re: [Vo]:Re: Constant temperature Operation of ECAT?
What? In the control regulation, everything is represented as either a voltage
or a current (because it's, like, electronics, duh). Normally, temperature
comes out of a thermocouple and is thus a voltage
@eskimo.com
Sent: Mon, May 27, 2013 3:22 pm
Subject: Re: [Vo]:Re: Constant temperature Operation of ECAT?
What? In the control regulation, everything is represented as either a
voltage or a current (because it's, like, electronics, duh). Normally,
temperature comes out of a thermocouple
Seems to me that if active cooling control is used as the only control input,
thus satisfying the unplug it! sceptics (and I'm one of them), then it only
has a chance of working if there is good thermal contact and good thermal
conductivity and substantial enough heat capacity in the active
regulation,
which is total overkill here.
Andrew
- Original Message -
From: Andrew
To: vortex-l@eskimo.com
Sent: Sunday, May 26, 2013 4:52 PM
Subject: [Vo]:Re: Constant temperature Operation of ECAT?
Seems to me that if active cooling control is used as the only control input
- Original Message -
From: David Roberson
To: vortex-l@eskimo.com
Sent: Sunday, May 26, 2013 5:00 PM
Subject: Re: [Vo]:Re: Constant temperature Operation of ECAT?
How many of these controllers use positve thermal feedback to keep the sink
at a constant temperature?
Dave
How many of these controllers use positve thermal feedback to keep the sink at
a constant temperature?
Dave
-Original Message-
From: Andrew andrew...@att.net
To: vortex-l vortex-l@eskimo.com
Sent: Sun, May 26, 2013 7:52 pm
Subject: [Vo]:Re: Constant temperature Operation of ECAT
-Original Message-
From: Andrew andrew...@att.net
To: vortex-l vortex-l@eskimo.com
Sent: Sun, May 26, 2013 8:05 pm
Subject: Re: [Vo]:Re: Constant temperature Operation of ECAT?
See my follow-up on this. There's always going to be a tracking error, no
matter how sophisticated
find that it matches my model.
Dave
-Original Message-
From: Andrew andrew...@att.net
To: vortex-l vortex-l@eskimo.com
Sent: Sun, May 26, 2013 8:05 pm
Subject: Re: [Vo]:Re: Constant temperature Operation of ECAT?
See my follow-up on this. There's always going
, May 26, 2013 5:09 PM
Subject: Re: [Vo]:Re: Constant temperature Operation of ECAT?
No, there is a large difference between a negative feedback system and a
positive feedback system. Tell us how to make your temperature controller
hold a constant temperature with positive
You are neglecting the I-can't-see-inside sceptics.
Harry
On Sun, May 26, 2013 at 7:52 PM, Andrew andrew...@att.net wrote:
**
Seems to me that if active cooling control is used as the only control
input, thus satisfying the unplug it! sceptics (and I'm one of them),
then it only has a
desirable of an active cooling system.
You dig?
- Original Message -
From: David Roberson
To: vortex-l@eskimo.com
Sent: Sunday, May 26, 2013 5:22 PM
Subject: Re: [Vo]:Re: Constant temperature Operation of ECAT?
But, we are talking about the ECAT. It operates by using
One thing at a time Harry; one thing at a time.
- Original Message -
From: Harry Veeder
To: vortex-l@eskimo.com
Sent: Sunday, May 26, 2013 7:00 PM
Subject: Re: [Vo]:Re: Constant temperature Operation of ECAT?
You are neglecting the I-can't-see-inside sceptics.
Harry
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