[TRNSYS-users] Weather data processor (Type 99)

[David BRADLEY]

Huseyin,

   I think that your point 2 is the right direction. You can read your 
data (including GHI) using Type9 and then feed GHI, T, and RH to a 
Type16 radiation processor. Type16 has a number of algorithms for 
estimating solar on tilted surfaces. The most basic of these requires 
only GHI but there is an improved algorithm that takes GHI, T, and RH.

kind regards,

  David


On 02/16/2020 07:48, Huseyin Gunhan Ozcan via TRNSYS-users wrote:
>
> Hi everyone,
>
> I am currently working on a modeling of solar PV aided AC with backup 
> system. In this regard, we experimentally measured the weather data, 
> namely temperature (T), relative humidity (RH), wind velocity (WV), 
> wind direction (WD) and tilted irradiance (POA). However, when I used 
> the model Type 99 I realized that the external file of it covers only 
> global horizontal irradiance (GHI). As I said, we only measured the POA.
>
> My questions are ;
>
> 1.Is it possible to define POA instead of GHI in external file. 
> Because, I saw that there is an opportunity for users to define four 
> different variables. But I do not know how to entitled POA in here.
>
> 2.Is it possible to calculate GHI from POA by using radiation 
> processors ? They are all created in case of GHI or other horizontal 
> irradiances known?
>
> 3.IF you know something else pls. let me know?
>
> Thanks in advance.
>
> *Huseyin Gunhan Ozcan*
>
> *Visiting Researcher*
>
> *Porto Uni., Dept. of Mech. Eng.*
>
> **
>
> *Adsız*
>
> **
>
> **
>
> **
>
>
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-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
3 North Pinckney Street - suite 202
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com

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