[EnergyPlus_Support] Re: If there's no surface between two zones.

["kirbyschapman" <chapman@xxxxxxx>]

If all we're interested in is the eat exchange between the two, is 
it plausible to add a very thin "wall" with a very high thermal 
conductivity? That would seem to take care of the heat exchange 
issue. 

K-

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Michael J. Witte" 
<mjwitte@g...> wrote:
> You are correct.  If there is no surface defined, there will be no 
> exchange between the two zones.  CROSS MIXING is a good solution 
for 
> this case.  The difficult thing it to determine what the flow rate 
> should be for CROSS MIXING.  I would recommend trying a range of 
> values to determine how sensitive the results are to this value.
> 
> I do not know of a way to model an air curtain in EnergyPlus.
> 
> Mike
> 
> 
> On 23 Jul 2003, at 20:46, waspoorboy wrote:
> 
> > For example, a shopping mall has two HVAC systems. One serves the
> > north half of the mall, the other serves the south half of the 
mall.
> > The two control thermostats, one in the north zone, the other in 
the
> > south zone, respectively. There is actually no surface between 
the
> > north and south zone. If I didn't define a surface between two 
zones,
> > EnergyPlus will assume no heat transfer between the two zones, 
am I
> > correct ? In the real mall, however, there will be heat transfer
> > between the north and south zone. Is CROSS MIXING the typical 
solution
> > to this ?
> > 
> > If the main entrance of the mall has air curtain, can I model 
the air
> > curtain in EnergyPlus ? Thanks a lot.
> > 
> > 
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