[TRNSYS-users] Type 16, Problem...

[EXTERNAL Stankovic Filip (Praktikant; TT/ENT)]

Dear TRNSYS users,

Recently I have tried to make a three years long simulation with Trnsys 14.2 and I noticed a strange behavior of Type 16. In order to diagnose the problem, I logged all type 16 inputs and outputs. 

I have compared recorded inputs and outputs for each of the three years simulated. All the inputs were matching (no wonder, since they were supplied either directly by weather data reader, or calculated based on weather data, which is 365 days long). However, there were significant differences between the outputs. Interesting thing that I noted is that outputs were always matching during first 15 hours of a day, but after that differences appeared almost randomly, until the time of the sunset. 

The parameters that I am using for the Type 16 are given below:

UNIT 2   TYPE 16  Solar Radiation Processor1, Ib and Id
PARAMS 9
*  Ib+Id  Tr_mode   sky     start_day       Lati       sol_const        shift    smooth_dis=2   no_sol_time
        6             1       1      StartTag      49.8              4871         -5.1                      1                    1

I am open for any suggestions or even solutions. 

Mit freundlichen Grüßen / Best regards

Filip Stankovic
System Simulation
Engineering New Technologies and Systems

BBT Thermotechnik GmbH
Bosch Group

TT/ENT
Junkersstr. 20-24
73249 Wernau
Germany

Telefon +49 71 53 / 3 06-1328
Telefax +49 71 53 / 3 06-2465
external.Filip.Stankovic at de.bosch.com
<www.bbt-thermotechnik.de> 
BBT Thermotechnik GmbH, Sitz: Wetzlar, Registergericht: Amtsgericht Wetzlar 5 HRB 13 
Aufsichtsratsvorsitzender: Wolfgang Chur; Geschäftsführung: Joachim Berner, 
Klaus Huttelmaier, Holger Jacoby, Andreas Nobis, Jürgen Sterlepper


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