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Re: [EnergyPlus_Support] Solar radiation data in the weather file.





 
 

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With Thanks & Regards

ShivRaj Dhaka

M.Tech (3rd Sem.)

Energy Engineering

Malaviya National Institute of Tech. Jaipur

Mob. #09828578171




--- On Sat, 26/9/09, Bing Dong <bingcat2007@xxxxxxxxx> wrote:

From: Bing Dong <bingcat2007@xxxxxxxxx>
Subject: Re: [EnergyPlus_Support] Solar radiation data in the weather file.
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Date: Saturday, 26 September, 2009, 12:51 AM

 
I see..

I converted EPW into .CSV file and, the first five fields become date and time.

Thanks!

Bing

On Fri, Sep 25, 2009 at 3:06 PM, Crawley, Drury <Drury.Crawley@ ee.doe.gov> wrote:
 
EnergyPlus does not automatically adjust the data for a new location.
 
The EPW format allows for minutes -- the only data we have is all hourly.  The 5th field is mins (usually 60) in all the existing EPWs.  See the Auxiliary Programs guide for more information on the EPW format.  http://energyplus. gov/pdfs/ auxiliaryprogram s.pdf

From: EnergyPlus_Support@ yahoogroups. com [mailto:EnergyPlus_Support@ yahoogroups. com] On Behalf Of Bing Dong
Sent: Friday, September 25, 2009 3:03 PM
To: EnergyPlus_Support@ yahoogroups. com
Subject: [EnergyPlus_ Support] Solar radiation data in the weather file.

 
Hi All,

I have two questions regarding to the solar radiation data in weather file.

1. If the downloaded weather data from DOE website is from airport, does E+ do an auto-scale for the actual  simulation place which is 20 miles away from airport, given the correct latitude and longitude ?  As we all know that the sky condition is changed from place to place.

2. If my measured data is in terms of minutes, where can I input these data into the weather file (e.g. the simulation time step could be 10 minutes)? The time format of the weather file is in hours.

Thank you very much!

Bing


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