[Bldg-sim] Fwd: Variation in incident solar radiation on east and west surface of a building in different simulation tool

[Mayank Bhatnagar]

Dear Jeff,

I converted same epw file into bin format using eQ_WthProc (DOE weather
converter tool). Additionally, eQuest also have hourly output for global
data (total horizontal radiation, direct normal radiation) which are also
compared and found identical with the epw weather file.

Regards,
Mayank

On Wed, Sep 24, 2014 at 8:48 PM, Jeff Haberl <jhaberl at tamu.edu> wrote:

>  FYI:
>
>
>
> You also didn't say that you're using the EPW weather file in EQUEST, only
> that EQUEST is using .BIN format (or binary). Is EQUEST using TMY2 or TMY3?
>
>
>
> Jeff
>
> 8=!  8=)  :=)  8=)  ;=)  8=)  8=(  8=)  8=()  8=)  8=|  8=)  :=')  8=) 8=?
> Jeff S. Haberl, Ph.D.,P.E.inactive,FASHRAE,FIBPSA,......jhaberl at tamu.edu
> <........jhaberl at tamu.edu>
> Professor........................................................................Office
> Ph: 979-845-6507
> Department of Architecture............................................Lab
> Ph:979-845-6065
> Energy Systems Laboratory...........................................FAX:
> 979-862-2457
> Texas A&M
> University...................................................77843-3581
> College Station, Texas, USA, 77843..............................URL:
> www.esl.tamu.edu
> 8=/  8=)  :=)  8=)  ;=)  8=)  8=()  8=)  :=)  8=)  8=!  8=)  8=? 8=) 8=0
>   ------------------------------
> *From:* Bldg-sim [bldg-sim-bounces at lists.onebuilding.org] on behalf of
> Peter Simmonds [psimmonds11 at gmail.com]
> *Sent:* Wednesday, September 24, 2014 10:15 AM
> *To:* Mayank Bhatnagar
> *Cc:* bldg-sim at lists.onebuilding.org
> *Subject:* Re: [Bldg-sim] Fwd: Variation in incident solar radiation on
> east and west surface of a building in different simulation tool
>
>   Try checking the date and time set on the programs. One could be using
> summertime hours ?
>
> Peter Simmonds, Ph.D., ASHRAE Fellow and DL
> Mobile US: +1-310-383-9911
> Mobile HKG: +852-9845-4902
> Mobile UK: +44 7711 926317
>
> On Sep 24, 2014, at 8:06 AM, Mayank Bhatnagar <mayank.23aug at gmail.com>
> wrote:
>
>     Dear Dru,
>
>  Yes, I am using the same weather file for all simulation tools. eQuest
> used bin format, which I have already checked with weather file (epw
> format). The bin file only have total horizontal radiation and Normal
> direct radiation, the diffuse radiation is being calculated by eQuest
> itself (as per Joe huang's mail: previously asked for a query on eQuest
> users). TRNSYS and E+ used epw format.
>
>  The variation are found in radiation falling on east and west surface of
> the building.
>
>  Regards,
>  Mayank
>
> On Wed, Sep 24, 2014 at 8:23 PM, Dru Crawley <dbcrawley at gmail.com> wrote:
>
>> Are you using the same hourly weather data in eQuest, TRNSYS and
>> EnergyPlus?  The radiation can vary significantly.
>>
>> On Wed, Sep 24, 2014 at 7:42 AM, Mayank Bhatnagar <mayank.23aug at gmail.com
>> > wrote:
>>
>>>
>>>    Dear All,
>>>
>>>  I am doing envelope analysis of a rectangular building in eQuest. The
>>> building have identical parameters for all perimeter zones. The simulation
>>> is being done for New Delhi climate zone. The results shows that the total
>>> solar heat gain through glazing is more in east zone compare to west zone.
>>> In the result of that the total load and energy consumption in east zone is
>>> higher than in west zone.
>>>
>>>  To verify the results, I analyzed the total horizontal and beam
>>> radiation incident on east and west facade. Here, the issue was started. In
>>> the eQuest, there always high incident solar radiation in east surface
>>> compare to west surface. However, the incident solar radiation on east and
>>> west surface in energy plus and TRNSYS have different trend from the
>>> eQuest. Here I am attaching graph showing variation of incident solar
>>> radiation in east and west facade with energy plus and TRNSYS.
>>>
>>>  Any guidance, suggestions will be appreciated.
>>>
>>>  1. Variation in eQuest and TRNSYS. (Blue and green is for eQuest and;
>>> Magenta and brown for TRNSYS)
>>>
>>> <image.png>
>>>
>>>  2. eQuest and Energy Plus
>>> <image.png>
>>>
>>>
>>>  Regards,
>>>
>>> Mayank Bhatnagar
>>>
>>>  Energy Analyst
>>>
>>>
>>>
>>>  _______________________________________________
>>> Bldg-sim mailing list
>>> http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org
>>> To unsubscribe from this mailing list send  a blank message to
>>> BLDG-SIM-UNSUBSCRIBE at ONEBUILDING.ORG
>>>
>>>
>>
>> _______________________________________________
>> Bldg-sim mailing list
>> http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org
>> To unsubscribe from this mailing list send  a blank message to
>> BLDG-SIM-UNSUBSCRIBE at ONEBUILDING.ORG
>>
>>
>   _______________________________________________
> Bldg-sim mailing list
> http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org
> To unsubscribe from this mailing list send  a blank message to
> BLDG-SIM-UNSUBSCRIBE at ONEBUILDING.ORG
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/bldg-sim-onebuilding.org/attachments/20140924/4ad0c4be/attachment.htm>