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

```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

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