[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: [EnergyPlus_Support] Specifying weather file at simulation start

It is correct that the weather file will not override the DesignDay data you defined.
I am not sure, if the IDF will run with a mismatched DesignDay data, for different locations. 
I seem to remember that there was an error or warning on the barometer setting value mismatch.  You can change that to make it run.  But the location of the DesignDay is also the used weather file location  for calculation of solar angles, etc.
The Ground temperatures, etc. are not changed automatically, by using the weather files for different locations.  Since Ohio may have a lower building surface temperature than Arizona, the values need to be adjusted manually.

 Dr. Li  

To: EnergyPlus_Support@xxxxxxxxxxxxxxx
From: hujia06@xxxxxxxxx
Date: Tue, 11 May 2010 13:01:34 -0400
Subject: Re: [EnergyPlus_Support] Specifying weather file at simulation start

Hello, there will be some warnings if your specifed location is different from that in the weather file. The weather file will not overrive the DesignDay you defined.

On Tue, May 11, 2010 at 12:51 PM, Linda Lawrie <linda@fortlawrie.com> wrote:

It only overrides what is in the Site:Location data.

At 10:45 AM 5/11/2010, roberturban4848 wrote:
What exactly does specifying the weather file override within the IDF file? For example, in my IDF file, I have information for Site:Location, SizingPeriod:DesignDay, Site:GroundTemperature:BuildingSurface specifically for Columbus, Ohio. If I run an EnergyPlus simulation with that exact IDF file, but I specify a weather file for say, Phoenix, Arizona, will it override the information I have specific to Columbus? If so, what exactly does it override?

30 days of prizes: Hotmail makes your day easier! Enter now


The primary EnergyPlus web site is found at:

The group web site is:

Attachments are currently allowed but be mindful that not everyone has a high speed connection.  Limit attachments to small files.

EnergyPlus Documentation is searchable.  Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.

Your email settings: Individual Email|Traditional
Change settings via the Web (Yahoo! ID required)
Change settings via email: Switch delivery to Daily Digest | Switch to Fully Featured
Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe