Re: [TRNSYS-users] TRNSYS-users Digest, Vol 182, Issue 36

On Thu, Feb 20, 2020 at 6:11 AM <trnsys-users-request@lists.onebuilding.org> wrote:

Send TRNSYS-users mailing list submissions to
trnsys-users@lists.onebuilding.org

To subscribe or unsubscribe via the World Wide Web, visit
http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org

or, via email, send a message with subject or body 'help' to
trnsys-users-request@lists.onebuilding.org

You can reach the person managing the list at
trnsys-users-owner@lists.onebuilding.org

When replying, please edit your Subject line so it is more specific
than "Re: Contents of TRNSYS-users digest..."
Today's Topics:

1. Re: Weather data processor (Type 99) (H?seyin G?nhan ?zcan)

---------- Forwarded message ----------
From: "Hüseyin Günhan Özcan" <huseyin.ozcan@yasar.edu.tr>
To: "TRNSYS users mailing list at OneBuilding.org" <trnsys-users@lists.onebuilding.org>
Cc: David BRADLEY <d.bradley@tess-inc.com>, Huseyin Gunhan Ozcan <huseyin@fe.up.pt>
Bcc:
Date: Wed, 19 Feb 2020 23:22:37 +0000
Subject: Re: [TRNSYS-users] Weather data processor (Type 99)
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.

From: TRNSYS-users <trnsys-users-bounces@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@lists.onebuilding.org>
Cc: David BRADLEY <d.bradley@tess-inc.com>; Huseyin Gunhan Ozcan <huseyin@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 ;

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.

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?

IF you know something else pls. let me know?

Thanks in advance.

Huseyin Gunhan Ozcan

Visiting Researcher

Porto Uni., Dept. of Mech. Eng.
_______________________________________________
TRNSYS-users mailing list
TRNSYS-users@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@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. 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.
_______________________________________________
TRNSYS-users mailing list
TRNSYS-users@lists.onebuilding.org
http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org