[TRNSYS-users] question about wall gain

[salim mokraoui]

Dear Erik and Matt,

 

Thank you very much for your answers. 

I can understand that this wall gain concerns only a radiative gains, is it
right ?

 

Best regards

 

De : Knut Erik Enerstvedt [mailto:knut.erik.enerstvedt at gmail.com] 
Envoyé : vendredi 7 janvier 2011 09:18
À : duffy at tess-inc.com; salim.mokraoui at lermab.uhp-nancy.fr;
trnsys-users at cae.wisc.edu
Objet : Re: [TRNSYS-users] question about wall gain

 

Dear Matt and Salim,

 

One example of usage for "wall gain" is when you have defined a boundary
wall with known boundary temperature, but also want to take into account
solar gain from windows on that wall. You can not (at least in TRNSYS 16)
define windows in the normal manner on boundary walls. For example, if you
are modelling a zone adjacent to a highly glazed building with known
temperature, and a glass wall separates the two. Then you can use "wall
gain" to impose the solar heat flux from the adjacent building on the
boundary wall.

 

Best regards,

Knut Erik Enerstvedt

 

 

>Dear Salim,

>To the best of my knowledge, and according to the documentation, it is
indeed an energy flux to the inside wall surface. When does one >use this, I
am not exactly sure. Perhaps when there is chimney in a wall with hot
exhaust gases that is causing a gain to the zone?

>Best regards,

>Matt




>----- Original Message -----
>From: "salim mokraoui" <salim.mokraoui at lermab.uhp-nancy.fr> 
>Sent: Wed, January 5, 2011 9:23
>Subject: [TRNSYS-users] question about wall gain

>Dear trnsys users,

 

>In zone window of trnbuild, what does wall gain means actually, is it a
density flux that we impose at the inside surface of the wall ?

 

>Many thanks

 

>Salim MOKRAOUI

>Faculté des sciences de Nancy - LERMAB

>BP 239

>54506 Vandoeuvre.

>Tél 03 83 68 48 44 - mél salim.mokraoui at lermab.uhp-nancy.fr

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