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Re: [EnergyPlus_Support] Processing multiple years in epw
Jeremiah,
This is only a single year weather file. Weather converter can
generate one of those -- including not starting on Jan 1. It
won't/can't put the actual dates in.
At 11:36 AM 11/6/2014, Jeremiah Crossett jcrossett@xxxxxxxxxxxxxxx
[EnergyPlus_Support wrote:
The attached files show how to
properly setup the idf and epw. The weather file was generated with a
program developed by a user some time ago and then the epw file was
modified a bit by me. The weather converter was not used, however it
would be interisting to see if it works as expected with the changes in
start and end dates. Hopefully it is useful for others to get an
idea of what is needed for this object and weather file.Â
â??â??
Jeremiah D. Crossett Â
| Senior Analyst Â
|Â LEED Green AssociateÂ
â??â??
7411 SW Capitol Highway | Portland, OR 97219Â
â??â??
 | Mobile 503-688-8951
www.phasechange.comÂ
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On Thu, Nov 6, 2014 at 10:28 AM, Dru Crawley
dbcrawley@xxxxxxxxx
[EnergyPlus_Support]
<
EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:
- Â
- Ned,
- Â
- EnergyPlus onlys reads EPWs. The custom CSV EPW is a
convenience for users to understand what data is required in each
column. You'd need to use the WeatherConverter to conver tthe
custom CSV EPW back to EPW.
- Â
- Dru
- On Thu, Nov 6, 2014 at 1:07 PM, Linda Lawrie
linda@xxxxxxxxxxxxxx
[EnergyPlus_Support]
<
EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:
- Â
- I cannot parse what you are saying, Ned. I read it over
twice.
- There are two ways that EnergyPlus can run multiple years -- with the
RunPeriod object and the repeat field.
- Also we implemented something about actual year -- I can't remember
if that applies to the RunPeriod, the CustomRange or both.
- The CustomRange expects weather files that are hand crafted to have
actual dates in the date fields and in the header (so it knows if the
selection is on the weather file or not). And they are merged
together in one large file.
- I can likewise send you the files I just sent Jim that implement
same.
- Linda
- At 09:02 AM 11/6/2014, 'Edward G. Lyon'
eglyon@xxxxxxx [EnergyPlus_Support]
wrote:
- I think what is not very clear in the documentation is if the custom
weather file is the .csv file format (created from the weather generator
opening a .epw or generating form some other source) or the .epw format
with more than a year of data actual date order. I suspect the
latter?
- Â
- Ned Lyon, P.E. (MA, WV)
- Staff Consultant
- SIMPSON GUMPERTZ & HEGER
- 781.907.9000 main
- 781.907.9350 directÂ
- 617.285.2162 mobileÂ
- 781.907.9009 fax
- www.sgh.com
- Â
- From:
EnergyPlus_Support@xxxxxxxxxxxxxxx
[
mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx]
- Sent: Thursday, November 06, 2014 10:49 AM
- To:
EnergyPlus_Support@xxxxxxxxxxxxxxx
- Subject: Re: [EnergyPlus_Support] Processing multiple years in
epw
- Â
- Â
- Jim is right, of course - as usual.
- I can send you both a file that does a custom range and a weather
file.
- You will need to hand create the weather file (appending the 2nd year
onto the first or similar).
- Â I would send it to you privately.Â
- At 04:44 AM 11/6/2014, Jim Dirkes
jim@xxxxxxxxxxxxxxxxxxxxxxxxxxx [EnergyPlus_Support] wrote:
- Marko,
- The purpose of the CustomRange object is for >365 day weather
years, as I understand it.� I think this object became available
about 2 years ago.� I was one of those who requested it so that
it would be more practical to model existing buildings where the
electricity and gas billing periods extended for longer than one calendar
year. As it happens, I have not tested it yet, but expect to do so soon.
- Ã?
- On Thu, Nov 6, 2014 at 5:38 AM,
marko.ignjatovic1980@xxxxxxxxx [EnergyPlus_Support]
<
EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:
- Ã?Â
- Hi all,
- I have problem running simulation for two consecutive years, ie.
processing raw weather data in epw. I have raw weather data starting from
October 15th 2013 until October 31st 2014. Can I create extended epw
containing this data period (creating epw for 8760 values is no problem)?
I read I/O documentation and found that RunPeriod:CustomRange can do the
trick but I am not sure. Any comment is more than welcome
- MarkoÃ?
- --
- Ã?
- James V Dirkes II, PE, BEMP, LEED AP
- The Building
Performance Team
- 1631 Acacia Drive, Grand Rapids, MI 49504
- (M) 616 450 8653
- The more one does what is good, the freer one becomes. There is no
true freedom except in the service of what is good and just.
- Content-Type: image/png; name="BPT Logo 35pct.png"
- Content-Disposition: inline; filename="BPT Logo
35pct.png"
- X-Attachment-Id: f_i12e40cc0
Content-Type: application/octet-stream;
name="NEW-CLT_9-1-2013_8-31-2014.EPW"
Content-Disposition: attachment;
filename="NEW-CLT_9-1-2013_8-31-2014.EPW"
X-Attachment-Id: f_i26gbzhw0
Content-Type: application/octet-stream;
name="NoPCM_BuildingE.idf"
Content-Disposition: attachment;
filename="NoPCM_BuildingE.idf"
X-Attachment-Id: f_i26gc1591
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Posted by: Linda Lawrie <linda@xxxxxxxxxxxxxx>
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