[TRNSYS-users] Problem with Type16

Matt Duffy duffy at tess-inc.com
Wed Sep 30 08:57:54 PDT 2009


Dear Adrien,

Please make sure that your "solar high noon" in your data matches the "solar high noon" coming out of Type16. This may be an issue with your start time - it could be off by an hour. Also, make sure you are NOT interpolating in Type9 for your radiation data.

Best regards,

Matt Duffy



----- Original Message -----
From: a.jezequel at itf.biz
Sent: Wed, September 30, 2009, 5:43 AM
Subject: [TRNSYS-users] Problem with Type16

Dear TRNSYS users,

I try to use Type16 to obtain solar radiation on each surface (North, South, East, and West) of my building with IBH and IDH given and read by a simple data reader.
The considered building is placed in Grenoble (lat : 45.12° - long 5.42°).
I put those informations in Type16 parameters :
Parameter5 (Latitude) = 45.12 degrees
Parameter7 (Shift in Solar Time) = -15-(-5.42) = -9.58 degrees
Parameter9 (Solar Time) = 1

But beam radiation exceeds extraterrestrial radiation for 25 time-steps during the simulation. This problem occurs only for East orientation (West orientation if parameter7 is positive) whatever the tilted surface mode (Parameter3).

I have seen in TRNSYS users archive that other people have encountered problem in Type16 use, but I haven't found how to solve that issue.

Any help will be appreciated

Best regards


-- 


    
        
            
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            Adrien JEZEQUEL
            Simulations Thermiques Dynamiques
        
        
            ITF
             
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