[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [EnergyPlus_Support] Re: If there's no surface between two zones.
This is another commonly used approach among modelers which is
sometimes referred to as an "air wall". With this approach, you need
to run sensitivities on the wall conductivity to determine how
critical this value is.
Mike
On 6 Aug 2003, at 14:11, kirbyschapman wrote:
> 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.
> > >
> > >
> > > ------------------------ Yahoo! Groups Sponsor
> > > ---------------------~--> Buy Breakthrough Natural Health
> Specialties
> > > at VitaminBoost.com $20 to $40 Naturally Painless Spray, Coral
> > > Calcium, No Snore, EZ Appetite Suppressant.
> > > http://www.challengerone.com/t/l.asp?cid=2882
> > > http://us.click.yahoo.com/yoMABA/ruYGAA/ySSFAA/dkFolB/TM
> > > -----------------------------------------------------------------
> ----~
> > > ->
> > >
> > > To unsubscribe from this group, send an email to:
> > > EnergyPlus_Support-unsubscribe@xxxxxxxxxxxxxxx
> > >
> > > The primary EnergyPlus web site is found at:
> > > http://www.energyplus.gov
> > >
> > > The group web site is:
> > > http://groups.yahoo.com/group/EnergyPlus_Support/
> > >
> > > Attachments are not allowed -- please post any files to the
> > > appropriate folder in the Files are of the Support Web Site.
> > >
> > >
> > >
> > >
> > >
> > >
> > > Your use of Yahoo! Groups is subject to
> > > http://docs.yahoo.com/info/terms/
> > >
> >
> >
> >
> > ========================================================
> > EnergyPlus Testing and Support
> > EnergyPlus-Support@g...
>
>
> ------------------------ Yahoo! Groups Sponsor
> ---------------------~--> Buy Ink Cartridges or Refill Kits for Your
> HP, Epson, Canon or Lexmark Printer at Myinks.com. Free s/h on orders
> $50 or more to the US & Canada.
> http://www.c1tracking.com/l.asp?cid=5511
> http://us.click.yahoo.com/l.m7sD/LIdGAA/qnsNAA/dkFolB/TM
> ---------------------------------------------------------------------~
> ->
>
> To unsubscribe from this group, send an email to:
> EnergyPlus_Support-unsubscribe@xxxxxxxxxxxxxxx
>
> The primary EnergyPlus web site is found at:
> http://www.energyplus.gov
>
> The group web site is:
> http://groups.yahoo.com/group/EnergyPlus_Support/
>
> Attachments are not allowed -- please post any files to the
> appropriate folder in the Files are of the Support Web Site.
>
>
>
>
>
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
------------------------ Yahoo! Groups Sponsor ---------------------~-->
Buy Ink Cartridges or Refill Kits for Your HP, Epson, Canon or Lexmark
Printer at Myinks.com. Free s/h on orders $50 or more to the US & Canada. http://www.c1tracking.com/l.asp?cid=5511
http://us.click.yahoo.com/l.m7sD/LIdGAA/qnsNAA/dkFolB/TM
---------------------------------------------------------------------~->
To unsubscribe from this group, send an email to:
EnergyPlus_Support-unsubscribe@xxxxxxxxxxxxxxx
The primary EnergyPlus web site is found at:
http://www.energyplus.gov
The group web site is:
http://groups.yahoo.com/group/EnergyPlus_Support/
Attachments are not allowed -- please post any files to the appropriate folder in the Files are of the Support Web Site.
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/