Re: [Vo]:Some ECAT Model Observations

2014-01-16 Thread mixent
In reply to  David Roberson's message of Thu, 16 Jan 2014 12:36:12 -0500 (EST):
Hi,
[snip]
My model can use any function that I choose for this purpose with the 
exception of delay mechanisms.  I suppose that they could also be incorporated 
if there is a good reason to believe that they are present and important.

The cooling will always be delayed somewhat, due to the slow speed of thermal
conduction. Hence thermal resistance will always play a crucial role. The lower
the resistance, the faster the cooling can respond, and the more easily a high
value exponent function can be controlled.

Regards,

Robin van Spaandonk

http://rvanspaa.freehostia.com/project.html



Re: [Vo]:Some ECAT Model Observations

2014-01-16 Thread David Roberson
I guess I should have mentioned that I do include thermal storage within the 
materials.  This behaves much like a capacitor and charge.  That is what 
determines the time domain characteristics of my model.

I was referring to a different type of delay, such as one that might show up if 
the temperature were applied to the core for a period of time and then some 
internal nuclear process, or whatever, begins to put out energy that builds up 
with time to its final value.

The other normal case is handled well.  It seems as though a two time constant 
system works well at the present time.

Dave

 

 

 

-Original Message-
From: mixent mix...@bigpond.com
To: vortex-l vortex-l@eskimo.com
Sent: Thu, Jan 16, 2014 4:03 pm
Subject: Re: [Vo]:Some ECAT Model Observations


In reply to  David Roberson's message of Thu, 16 Jan 2014 12:36:12 -0500 (EST):
Hi,
[snip]
My model can use any function that I choose for this purpose with the 
exception 
of delay mechanisms.  I suppose that they could also be incorporated if there 
is 
a good reason to believe that they are present and important.

The cooling will always be delayed somewhat, due to the slow speed of thermal
conduction. Hence thermal resistance will always play a crucial role. The lower
the resistance, the faster the cooling can respond, and the more easily a high
value exponent function can be controlled.

Regards,

Robin van Spaandonk

http://rvanspaa.freehostia.com/project.html