[TRNSYS-users] active layer

[David Bradley]

Filippo,
    I have gotten similar messages when I was working with active layers. 
The first thing I would make sure of is that you are using the latest 
version of TRNSYS and TRNBuild (16.01.xxxx). Second, the minimum flow rate 
is a minimum specific flow rate (per unit floor area). Once you set your 
minimum desired flow rate, click the "autosegment" button and if the flow 
rate that you specified is lower than is allowed by the floor size, the 
floor will automatically be broken up into smaller segments that are 
internally attached in series.
Kind regards,
  David


At 09:29 2/5/2007, Filippo Busato wrote:
>Hi everbody!
>
>I have a question concerning the active layer. While I was trying to 
>implement active layers in a building structure, compiling the .bui file I 
>got the following message:
>
>"The min. desired inlet mass flowrate is smaller than the min. allowed 
>inlet mass flowrate.
>You may use autosegmentation
>MinflowCalc=11.0326
>MFLOWMIN=10"
>
>I thought MFLOWMIN was calculated from the piping features (diameter, 
>length), in order to avoid transition to laminar flow, as it sounded 
>reasonable, is it correct?
>
>
>
>
>So I tried to change the MinflowCalc from 10 to 11 in the specification 
>window of the surface in the building model (TRNBUILD).
>Then, when I compile it the second time I get the same message:
>
>"The min. desired inlet mass flowrate is smaller than the min. allowed 
>omòet mass flowrate.
>You may use autosegmentation
>MinflowCalc=11.05...
>MFLOWMIN=11"
>
>What do MFLOWMIN and MinflowCalc mean? Does MinflowCalc depend only on 
>geometrical features?
>Can anyone help me in setting these features correcly?
>
>
>Thank you in advance
>Filippo.
>
>--
>
>------------------------------------------------------------------------------------------ 
>
>Filippo Busato - Ph.D.
>ingegnere
>
>Università degli Studi di Padova
>Dipartimento di Tecnica e Gestione dei sistemi industriali
>Str.lla S.Nicola, 3 - 36100 Vicenza (VI)
>
>mailto: <mailto:busato at gest.unipd.it>busato at gest.unipd.it
>homepage: 
><http://www.gest.unipd.it/%7Ebusato>http://www.gest.unipd.it/~busato
>
>skype: foucault76
>tel: +39 0444 998778
>fax: +39 0444 998884
>mob: +39 347 1207174
>------------------------------------------------------------------------------------------
>
>_______________________________________________
>TRNSYS-users mailing list
>TRNSYS-users at engr.wisc.edu
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