[TRNSYS-users] Double skin facade

[Avesani Stefano]

Hi all,

Concerning the modelling of a DSF in TRNSYS, I have a doubt about the solar radiation calculations reported in Balance1 (NType901) and Balance 4 (NType904).

Going from indoor to outdoor, I have an indoor office space, a double glazing, the DSF cavity and an external single glazing. In particular, comparing B4_QSOL (for the indoor space) with B1_QSADJ (for the indoor space) and B4_QSOL (for the indoor space) with B1_QSGWALL (for the indoor space) I get the following general trend:
B1_QSADJ > B4_SOL > B1_QSGWALL
Which contributions are missing in this comparison?

Moreover, I want to calculate the overall solar gain from the adjacent window going toward indoor, divided in its components (transmitted radiation direct + diffuse, secondary heat flux convective towards the indoor air and LW from the internal surface to the indoor internal walls). Is this possible with the Type56 output?

Thanks a lot!
BR
Stefano


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From: trnsys-users-bounces at cae.wisc.edu [mailto:trnsys-users-bounces at cae.wisc.edu] On Behalf Of David BRADLEY
Sent: 18 July 2013 18:15
To: TRNSYS users mailing list at the Solar Energy Lab, UW-Madison
Subject: Re: [TRNSYS-users] Double skin facade

Zahid,
  I have done some double skin facade modeling in TRNSYS. I typically treat the airspace of the double skin as a zone in the Type56 building model and then use Type97 (CONTAM) to calculate the air flow rate through that zone.
Kind regards,
 David

On 7/13/2013 02:07, m zahid wrote:
hi
Anybody know about the Double Skin facade modeling in TRNSYS .

zahid




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