Re: [EnergyPlus_Support] big zones - voids?

[fred buhl <wfbuhl@xxxxxxx>]

Clarice,

If you leave out the walls the will be no heat exchange between the 
zones. You could try using MIXING or
CROSS MIXING but I doubt the result would be very satisfactory for "air 
walls". People generally model
this situation with low resistance walls.

Fred Buhl

Clarice Bleil de Souza wrote:

>Hi Linda,
> 
>Thanks a lot for the answer.
>In case I choose to leave out the walls and run a free float simulation, will E+ account for heat exchange between the 2 zones? Do I need to specify sth that simulate mass flow from one zone to the other?
> 
>Once again thanks for the help
> 
>Best regards,
> 
>Clarice
>
>
>Linda Lawrie <linda@xxxxxxxxxx> escreveu:
>Yesterday's response to similar question:
>
>  
>
>>You may model with a ficticious material (maybe r only) or leave out 
>>those "walls" and just use floor and ceiling in interior zones.  You 
>>will get a warning that your zone does not have 6 surfaces/enclosure
>>though (if you leave out the interior walls).  You also can just use 
>>constructions with R values for those
>>interior walls.  Something appropriate but small R value.
>>    
>>
>
>At 12:17 PM 8/8/2005, Clarice Bleil de Souza wrote:
>  
>
>>I would like to know if there is a way to model a void between 2 zones in E+.
>>How does it account for the heat exchange between the zones that are 
>>separated by voids (no heat transfer surfaces - only air) ?
>>
>>    
>>
>
>If the zones are all conditioned at the same temperature, basically 
>there is no "heat exchange" between zones.  One should account for 
>the thermal interior mass (e.g. furniture, partitions, etc) by 
>including internal mass objects.
>
>
>Linda
>
>EnergyPlus WebSite: http://www.energyplus.gov
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