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[EnergyPlus_Support] Re: Question about "Zone List Multiplier"?



I have posted this file on the yahoo group website.

David

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Michael J. Witte" 
<mjwitte@g...> wrote:
> Please provide sample files as-run for each multiplier case.  You 
may post them 
> to the yahoo group or e-mail them (zipped) to energyplus-
support@g...
> 
> Mike
> 
> 
> 
> On 21 May 2004, at 18:44, bsiengineer wrote:
> 
> > A colleague of mine had a very similar problem.  He used a zone 
> > multiplier of 8, and electricity consumption increased by a 
factor 
> > much greater than 8.  Using multipliers of 32 to 64 the 
consumption 
> > started to decrease.  I can post his .idf if anybody is 
interested.
> > 
> > David
> > 
> > 
> > --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "i50330513" 
> > <50330513@s...> wrote:
> > > I make good use of `EnergyPlus' program to predict the energy 
> > > performance of a commercial building which is a 40-story 
building. 
> > I 
> > > had already simulated the 40-story building.
> > > 
> > > In order to reduce the amount of input of the identical floors 
and 
> > > have a shorter computational time, Zone List Multiplier field 
in 
> > the 
> > > Zone Group object are used to multiply from 1st to 38th floors. 
> > > However, after simulation of the building with this Multiplier 
> > > field, I found that the total electricity use 
> > (Electricity:Facility) 
> > > and the plant loop cooling demand of the building are much less 
> > than 
> > > that of the building without using the field of Zone List 
> > > Multiplier. 
> > > 
> > > Is there any input error in the program? The Zone Group object 
is 
> > > shown as follows. You can see that the Zone List multiplier is 
set 
> > > to 38 in the 1st FLOOR. Does it mean that the 1st FLOOR is 
> > > multiplied by 38? If yes, why the total electricity and the 
cooling 
> > > loads are much less than that of the building without the use 
of 
> > > Zone List multiplier field.  
> > > 
> > > ---------------------------------------------------------
> > > ZONE GROUP,
> > >     GF FLOOR,			!- Zone Group Name
> > >     GF FLOOR LIST,		!- Zone List Name
> > >     1;				!- Zone List Multiplier
> > > 
> > > ZONE GROUP,
> > >     1st FLOOR,			!- Zone Group Name
> > >     1st FLOOR LIST,		!- Zone List Name
> > >     38;				!- Zone List Multiplier
> > > 
> > > ZONE GROUP,
> > >     RF FLOOR,			!- Zone Group Name
> > >     RF LIST,			!- Zone List Name
> > >     1;				!- Zone List Multiplier
> > > ---------------------------------------------------------
> > > 
> > > I hope you make some recommendation for me. Thanks for your 
> > > attention.
> > > 
> > > Leung
> > 
> > 
> > 
> > 
> > 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 area of the Support Web Site.
> > 
> > Yahoo! Groups Links
> > 
> > 
> > 
> > 
> > 
> 
> 
> 
> ========================================================
> Michael J. Witte, GARD Analytics, Inc.
> EnergyPlus Testing and Support      
> EnergyPlus-Support@g...



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