[Bldg-sim] Reg: Query For DesignBuilder

[Kiran Ghosh]

Thank you so much, everyone. As Victor has illustrated, the geometry was
changing and so was the area. Lots of thanks to everyone for pitching in. I
can finally sigh in relief. :)

On Thu, Sep 6, 2018, 2:00 PM Víctor Moreno Solana <gestienergetica at gmail.com>
wrote:

> Hi.
> If you modify the U-value, Design Builder modify the insulation
> layer thickness to coincide with U-value specified. So, the total wall
> thickness can be modified dependent on how you have configured the Geometry
> convention template (
> https://www.designbuilder.co.uk/helpv5.5/#GeometryAreasAndVolumes.htm%3FTocPath%3DBuilding%2520Models%7CModel%2520Data%7CBuilding%2520Model%2520Data%7CConstruction%2520Data%7CConstructions%7C_____5).
> If the Geometry convention template is not "Simple", the wall thickness
> will be modify, so the net area is modified too, so for a specified lpd the
> total power is different.
>
>
> *Victor Moreno <http://es.linkedin.com/in/VictorMoreno3>*
>
>
>
> *Green Building & Energy ConsultantLEED AP BD+C
> <http://www.usgbc.org/leed>, BREEAM Asesor <http://breeam.es/>, CEM
> <http://www.aeespain.org/certificados>, CMVP
> <http://www.aeespain.org/certificados>, CxA
> <http://www.usgbc.org/Docs/Archive/General/Docs1262.pdf>gestienergetica at gmail.com
> <gestienergetica at gmail.com>*
>
>
> El jue., 6 sept. 2018 a las 7:18, Kiran Ghosh via Bldg-sim (<
> bldg-sim at lists.onebuilding.org>) escribió:
>
>> Hi Jim,
>>
>> I have checked each IDF file and the inputs and schedules. It is
>> literally the same model with only the U values for external walls changed.
>> Could this possibly affect the equipment and lighting load?
>>
>> On Thu, 6 Sep 2018 at 01:38, Jim Dirkes <jim at buildingperformanceteam.com>
>> wrote:
>>
>>> [image: Boxbe] <https://www.boxbe.com/overview> Jim Dirkes (
>>> jim at buildingperformanceteam.com) is not on your Guest List
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>>> All lighting and equipment values are within 1% of each other. That's
>>> probably close enough to be considered "the same", considering the complex
>>> E+ calculations and some rounding errors, but it is less close than seems
>>> reasonable. Have you compared inputs and schedules for each of those in
>>> each IDF?
>>>
>>> On Wed, Sep 5, 2018 at 8:56 AM, Kiran Ghosh via Bldg-sim <
>>> bldg-sim at lists.onebuilding.org> wrote:
>>>
>>>> Hi,
>>>>
>>>> I am currently modelling a simple HVAC model on DesignBuilder. I need
>>>> to run the simulation to obtain annual electricity consumption due to
>>>> Cooling, Lighting and Interior Equipment for different construction
>>>> materials. For some reason, while all the input is the same apart from the
>>>> U value for the external wall, the electricity end-use for lighting and
>>>> interior equipment changes as follows:
>>>>
>>>> U value Lighting Equipment
>>>> 2.04 496.38 885.89
>>>> 2 494.72 880.84
>>>> 1.85 487.9 860.3
>>>>
>>>> The LPD and Equipment Power Density remains the same with the same
>>>> schedule, why is the annual electricity consumption changing?
>>>> --
>>>> Thanks and Regards
>>>> Kiran K Ghosh
>>>> +919582904515
>>>> +918152036434
>>>> kirankghosh31 at gmail.com
>>>>
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>>>>
>>>
>>>
>>> --
>>>
>>> James V Dirkes II, CEO / President
>>> The Building Performance Team Inc.
>>> 1631 Acacia Dr, Grand Rapids, MI 49504
>>>
>>> (alphabet soup of efforts for greater understanding: PE, BEMP, BCxP,
>>> LEED AP)
>>>
>>> Direct / Mobile: 616.450.8653
>>> jim at buildingperformanceteam.com
>>>
>>> Website <http://buildingperformanceteam.com>l  LinkedIn
>>> <https://www.linkedin.com/pub/jim-dirkes/7/444/413>
>>>
>>> *Coffee conversation:*
>>>
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>>>
>>> Friend: "No shit."
>>>
>>>
>>
>> --
>> Thanks and Regards
>> Kiran K Ghosh
>> +919582904515
>> +918152036434
>> kirankghosh31 at gmail.com
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