[TRNSYS-users] Air stratification in an atrium

[<jfamailbox-i3er@yahoo.fr>]

Thanks for users having shared their trick for help me.
I have find anything in user manual about this, does someone known a "official" procedure for this issue ?

Regards,
JeFF

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> Today's Topics:
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>    1. Re: [BLDG-SIM] workshop reminder (David Bradley)
> De: David
>  Bradley <bradley@tess-inc.com>
> Cc: trnsys-users@engr.wisc.edu
> À: mathaase@hkusua.hku.hk
> Date: Thu, 29 Jun 2006 10:31:39 -0500
> Objet: Re: [TRNSYS-users] [BLDG-SIM] workshop reminder
>
>  Mat,
>
> >1. With the new version of TRNSYS16 there is also the possibility to use 
> >Type56a and b (with and without standard output files). Are the standard 
> >output files (bldg-monthly) similar to an energy balance (NType 901)? When 
> >I look at the output file it gives monthly values for Heating, Cooling, 
> >Infiltration, Ventilation, Solar_Rad, and Int_gains. However, when I add 
> >them up it seems something is missing. Is the difference the conduction part?
>
> no, they aren't. For the balances a lot of values are used which aren't 
> available as "normal" NTYPEs. In addition, only the   values of the upper 
> part of the "summary.bal" are integrated. The other values are simply 
> printed every hour (not integrated!). The
>  standard output files were 
> developed for previous TRNSYS versions (15, specifically) and use "normal 
> NTYPES" that are
> integrated over the time inside 56.
>
> >2. There was a mistake in the types 901 - 904. Are the balance types now 
> >correct? Is the documentation still correct?
>
> the balances and the documentation were corrected for the release of 16.1.
>
> >3. I want to model an internal shading device that is black. Which 
> >properties of shading device do I have to change? And to which values? Do 
> >you know papers on that subject?
>
> the internal shading factor available in TRNBuild has reflectance and 
> thermal resistance but no absorptance. To model a black shading device, you 
> should set the reflectance toward the window and toward the zone to 
> something very small but non zero (0.01 should work).
>
> Kind regards,
>  
>  David
>
>
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