[Bldg-sim] Natural Ventilation Modelling

Martin Roy martin.roy at mra.qc.ca
Wed May 18 20:59:53 PDT 2011


We did use LoopDa with good result and it is free 
at : 
<http://www.bfrl.nist.gov/IAQanalysis/software/LOOPDAdownload1.htm>http://www.bfrl.nist.gov/IAQanalysis/software/LOOPDAdownload1.htm 

We try Energy+ but it is hard to use and there is a lot of parameter to adjust.

Martin


At 12:00 18/05/2011, Francisco Massucci wrote:
>Hi Ömer,
>
>   EnergyPlus has an module called airflow 
> network, that works wich pressure nodes and 
> ventillation pathways. It`s not a CFD but for 
> the purpose you will use I think its even more 
> appropriated than a CFD software. You can learn 
> more about at: 
> <http://fsec.ucf.edu/en/publications/pdf/FSEC-PF-428-07.pdf>http://fsec.ucf.edu/en/publications/pdf/FSEC-PF-428-07.pdf
>
>Regards,
>Francisco Massucci
>
>2011/5/17 Cheney <<mailto:chenyu73 at gmail.com>chenyu73 at gmail.com>
>Hi Mimta,
>
>For natural ventilation. I will recommend IES 
>VE. It has tow modules, MacroFlo and MicroFlo 
>(CFD), which are able to address your specific 
>requirements at different scales. I've used both 
>modules quite often to solve particular 
>ventilation (both natural and mechanical 
>ventilation) issues. TAS and Energy Plus may be 
>able to do the same thing but I've never used them for ventilation analysis.
>Regards,
>
>Cheney
>
>LinkedIN @ 
><http://ca.linkedin.com/pub/yu-cheney-chen/27/637/72b>http://ca.linkedin.com/pub/yu-cheney-chen/27/637/72b 
>
>
>
>
>2011/5/17 Ömer Moltay <<mailto:omoltay at mimtarch.com>omoltay at mimtarch.com>
>Hi,
>
>We use eQuest for our energy models. We are now 
>faced with a project where we would like to know 
>the effect of stack-effect natural ventilation 
>in a 5 storey building and how it can help us 
>undersize the mechanical equipment, especially 
>due to night cooling of the concrete structure. 
>Further, we would like to use the same modelling 
>for LEED compliance. eQuest seems insufficient 
>for this. What is the recommended practice for this?
>
>Thanks,
>
>Omer Moltay, LEED AP, BREEAM Assessor
>Mimta Ltd.
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----------

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Martin Roy et associés
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