Re: [TRNSYS-users] transfer function

[David BRADLEY <d.bradley@tess-inc.com>]

Matteo,
  The INF file says that it is wall EW that is giving you the problem. I don't see anything really obviously wrong about the wall definition. The zero thickness layer in this case isn't a problem because that layer material is defined as being resistive only (ie no capacitance). My guess is that the 20cm of BLOCCHI_PIENI_20CM_CLS_800 is causing the problem and that you have to increase the time base. The time base is increased in the TRNBuild "outputs" window.
Best,
 David

On 7/24/2012 10:37, 64@enetec.it wrote:

Dear Trnsys Users,

using  type56, when I set the layers of my external wall type, while I am trying to save, I receive the following message:

error creating transfer function coefficient: stability criteria not fulfilled. Check layer definition….

I attach the info file for further information.

Moreover in trnsys 17.1 where I can find the “calculate transfer function” window, where I can decide the timebase.

Thank you for your availability.

Regards

Matteo

 

ing. Matteo Mariotti

 

Enetec S.r.l.

Ingegneria Energetica e Realizzazioni Impanti

ROMA Via del Maggiolino, 125 - 00155 Roma

telephone: 0039.(0)6.22754810 int.74

mobile:      0039.328.2161722

mailto:       64@enetec.it

 

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