[Bldg-sim] Simulation programs question

[Chris Yates]

In that case, you may also be able to utilise some of the stratified 
zone models (if the space is tall). From memory, they aren't coupled to 
the airflow network but they will work with HVAC.

Somebody posted a comment regarding convergence tolerances of no mass 
materials. I can't really comment on this apart from re-iterating that 
E+ has a model for purely resistive (i.e. no thermal mass) materials. I 
know other simulation programs do have problems with convergence in very 
thin opaque elements because you can't turn of the thermal mass.

It's a little bit of an untested area this so expect to spend some time.

Chris

On 04/02/2011 18:31, Ragab M. Moheisen wrote:
>
> The tent has its own ECU unit to condition the space, so it is well 
> controlled airflow
>
> *From:*Chris Yates [mailto:chris.malcolm.yates at gmail.com]
> *Sent:* Friday, February 04, 2011 12:18 PM
> *To:* Shaun Martin
> *Cc:* Ragab M. Moheisen; bldg-sim at lists.onebuilding.org
> *Subject:* Re: [Bldg-sim] Simulation programs question
>
> Ragab,
>
> In E+, you may be able to use the "NoMass" material for lightweight 
> fabric constructions. I've /not /got direct experience of using the 
> NoMass material but it seems the most common sense approach when 
> thermal mass is insignificant.
>
> How well controlled is airflow? The less controlled (i.e. more natural 
> ventilation) the more computationally intense and error prone the 
> solution.
>
> Chris
>
> On 04/02/2011 18:04, Shaun Martin wrote:
>
> I think most of them can to varying degrees, certainly DOE2 and 
> EnergyPlus can.  Your challenge will be getting good infiltration inputs.
>
> Shaun
>
> /Shaun Martin LEED AP/
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> /Shaun Martin Consulting/
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> /Suite 200 - 420 West Hastings Street/
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> ------------------------------------------------------------------------
>
> *From:*bldg-sim-bounces at lists.onebuilding.org 
> <mailto:bldg-sim-bounces at lists.onebuilding.org> 
> [mailto:bldg-sim-bounces at lists.onebuilding.org] *On Behalf Of *Ragab 
> M. Moheisen
> *Sent:* Friday, February 04, 2011 9:49 AM
> *To:* bldg-sim at lists.onebuilding.org 
> <mailto:bldg-sim at lists.onebuilding.org>
> *Subject:* [Bldg-sim] Simulation programs question
>
> Hi,
>
> Does any of the building simulation programs out there simulate 
> temporary structures, i.e. tents, shelters, etc.?
>
> Thanks
>
> *Dr Ragab Moheisen*
> Research Engineer *|*SMART Energy Research Group
>
> Sustainable Mobile Alternative & Renewable Technologies
>
> **
>
> *Applied Research Associates, Inc.*
>
> Engineering Science Division
>
> 421 Oak Avenue
> Panama City, FL 32401
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> rmoheisen at ara.com <mailto:rmoheisen at ara.com>
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> -- 
>
> Chris Yates C Eng MCIBSE
>
> /Building Physics Consultant/
>
> Tel:   +447960731576
>
> Email: chris.malcolm.yates at gmail.com 
> <mailto:chris.malcolm.yates at gmail.com>
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>

-- 

Chris Yates C Eng MCIBSE

/Building Physics Consultant/

Tel:+447960731576

Email: chris.malcolm.yates at gmail.com

Skype: christopher.m.yates

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