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Re: [TRNSYS-users] thermal bridges effect



Hello;

Can anybody kindly tell me the meaning of “Array slope”, of Solar PV “Input” of “Type 94-a” Solar PV Panels. I change the “Array slope” parameter and see the output. But, I couldn’t see any significant variation of output of solar PV panels. It has not defined this paramer or sign convention for that on help manual

I am modeling an array f solar PV panels, I use “Collector Array Shading” for that. It also has “Collector Slope” as “Parameter”. Is that same as ““Array slope” parameter of “Type 94-a”, Solar PV panel. The “Weather Data Reading and Processing” also has “Slope of surface” and “Azimuth of surface”. But it is also not defined the sign convention for above two parameters in “Help Manuals”. How can we define above three parameters? Can anybody tell me? According to my knowledge, the maximum solar PV gain shall be when it is oriented towards southern, when we stay in northern hemisphere. But I always gets the maximum solar pv output when Slope of Solar PV is “0” degrees, that means when it is horizontal.
Thank You,

Chaminda
On Mon, 23 May 2016 07:40:49 +0000
hotline via TRNSYS-users <trnsys-users@lists.onebuilding.org> wrote:
Dear Maroun,

define the small surfaces as external walls with a higher U-Value than the normal external ones. You will have to find out about the exact number yourselve.

Best
Jakob

_________________________________________________________________________________________________

Jakob Merk
TRNSYS Software Team

Transsolar Energietechnik GmbH
Curiestraße 2
70563 Stuttgart
Fax:        +49 711 67976-11
Email: hotline@transsolar.com<mailto:hotline@transsolar.com>
Web:      www.trnsys.de<http://www.trnsys.de/>



Von: TRNSYS-users [mailto:trnsys-users-bounces@lists.onebuilding.org] Im Auftrag von NEMAR Maroun via TRNSYS-users
Gesendet: 20 May 2016 16:15
An: trnsys-users@lists.onebuilding.org
Betreff: [TRNSYS-users] thermal bridges effect

​Hi dear users,
I wish you all doing fine.

I am a user of TRNSYS 17​, and this is my first time that I want to consider the effect of thermal bridges in simulation of building. Please look at the screen shot in attached and make me know if what I made is correct : I made in my *.idf file a small surfaces in each corner of zones as external walls (look at it in attached), then I want to make them in TRNBuild as a thermal bridges, am I right ? If yes, how can I do so in TRNBuild ?

Please I need answers, thank you.

Best regards,
MAROUN
[https://mailtrack.io/trace/mail/8f073e94fe987a174a6452bc70acbb9fd7476fc0828128.png]