RE: [EnergyPlus_Support] Re: Heating Energy during summer analysis with DesignBuilder

["Andy Tindale" <andy@xxxxxxxxxxxxxxxxxxx>]

William,

The heating in summertime reported in DesignBuilder may be related to VAV
reheat (if you are using a compact hvac vav system). Otherwise I'd  have to
see the model to say more.

In general for DesignBuilder-specific questions you may find that the
DesignBuilder 'EnergyPlus Simulation' forum a good place for getting answers
to your questions:

http://www.designbuilder.co.uk/component/option,com_forum/Itemid,25/page,vie
wforum/f,1/

Andy Tindale
DesignBuilder

-----Original Message-----
From: EnergyPlus_Support@xxxxxxxxxxxxxxx
[mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx]On Behalf Of JV Dirkes II
Sent: 22 September 2008 01:39
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Re: Heating Energy during summer analysis
with DesignBuilder


Dear Wiiliam,

I'm not quite sure what "Heat Generation" means in your particular
simulation, however here are some ideas......

1) Numerous sources, including all the lighting and plug loads create
heat during the summer
2) Certain weather periods may cause your heating system to operate in
the "summer", such as night time and cool spells
3) Try exporting your DB model to E+ and selecting a number of Report
Variables which will help you understand where the extra energy is used.

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "William"
<ultimateslacker@...> wrote:
>
> Hi,
>
> I used DesignBuilder to simulate the energy changes of a building in
> Washington D.C. I do not understand why there are positive values for
> Heat Generation (Electricity) during the summer.
>
> Why does the simulation produce this results when during the summer
> period, heating will be turned off. Is it due to other factors that
> I'm not aware about ?
>
> Thank you for your help and clarification.
>
> Regards,
> William
>



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