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

[Hüseyin Günhan Özcan]

Dear David,

I supposed that you did not understand my question. My problem is I am only measuring POA (not GHI).
That is why I do not know how to use POA in Type 99. Is it possible to substitude in external file as given below ?

The other thing, if it is not possible, how can I calculate GHI  from POA ?

Thanks in advance. I hope it is clear now.

[cid:image002.jpg at 01D5E77B.7770EA20]

From: TRNSYS-users <trnsys-users-bounces at lists.onebuilding.org> On Behalf Of David BRADLEY via TRNSYS-users
Sent: Wednesday, February 19, 2020 6:33 PM
To: TRNSYS users mailing list at OneBuilding.org <trnsys-users at lists.onebuilding.org>
Cc: David BRADLEY <d.bradley at tess-inc.com>; Huseyin Gunhan Ozcan <huseyin at fe.up.pt>
Subject: Re: [TRNSYS-users] Weather data processor (Type 99)


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]








_______________________________________________

TRNSYS-users mailing list

TRNSYS-users at lists.onebuilding.org<mailto:TRNSYS-users at lists.onebuilding.org>

http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org

--

***************************

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<mailto:d.bradley at tess-inc.com>



http://www.tess-inc.com

http://www.trnsys.com

Bu elektronik postada bulunan tum fikir ve gorusler ve ekindeki dosyalar sadece adres sahip/sahiplerine ait olup,
Yasar Universitesi bu mesajin icerigi ile ilgili olarak hic bir hukuksal sorumlulugu kabul etmez. Eger gonderilmesi
dusunulen kisi veya kurulus degilseniz, lutfen gonderen kisiyi derhal haberdar ediniz ve mesaji sisteminizden siliniz.<br><br>
The information contained in this e-mail and any files transmitted with it are intended solely for the use of the
individual or entity to whom they are addressed Yasar University does not accept legal responsibility for the 
contents. If you are not the intended recipient, please immediately notify the sender and delete the message from your system.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/attachments/20200219/ee3d5352/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.png
Type: image/png
Size: 11871 bytes
Desc: image001.png
URL: <http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/attachments/20200219/ee3d5352/attachment-0001.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image002.jpg
Type: image/jpeg
Size: 51072 bytes
Desc: image002.jpg
URL: <http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/attachments/20200219/ee3d5352/attachment-0001.jpg>