[TRNSYS-users] TRNFLOW and thermal relation between two airnodes

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Hi all,

I designed with google sketchup 2 boxes, 1m3 each. Those two boxes are
adjacent to each other.
I set up the adjacent surface between both as a virtual surface, expecting
that the two airnodes would be linked to each other (air motion link).
I assumed that if I set up a ventilation rate in one airnode, the other
airnode would be affected, and the two air temperatures would be really
close to each other. Because I assumed that thanks to the virtual surface,
the two airnodes would act like one airnode.
However there is not such link between both according to the air
temperature result.

Therefore, I coupled the two airnodes in the TYP56, but i'm surprised that
I have to set up a ventilation rate between the airnodes.
Also, I dont understand why there are "upper" and "lower" configurations.

Finally, I tried to couple the two airnodes using TRNFLOW, but when I use
"large opening", nothing appear on the left frame, which still shows
"undefined". Thus I get an error when I try to close TRNBUILD.

I think I don't use TRNFLOW or the coupling option correctly. Can someone
help me or direct me to a tutorial so that I can learn how to couple the
two airnodes properly?

Thanks a lot in advance

Regards

--
Wirich Freppel

Wirich Freppel's picture
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Joined: 2016-04-05
Reputation: 0

Dear TRNFlow-User,

attached you can find a TRNFlow-Tutorial. You can also find in in your TRNSYS directory under ?\Studio\Lib\Comis\Documentation\.
If this is not helpful, please send your TRNSYS-project to hotline at trnsys.de and we will have a look at it.

Best regards
Jakob Merk

_________________________________________________________________________________________________

Jakob Merk
TRNSYS Software Team

Transsolar Energietechnik GmbH
Curiestra?e 2
70563 Stuttgart
Fax: +49 711 67976-45
Email: hotline at transsolar.com
Web: www.trnsys.de

Von: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] Im Auftrag von Wirich Freppel
Gesendet: Freitag, 19. Februar 2016 16:07
An: trnsys-users at lists.onebuilding.org
Betreff: [TRNSYS-users] TRNFLOW and thermal relation between two airnodes

Hi all,
I designed with google sketchup 2 boxes, 1m3 each. Those two boxes are adjacent to each other.
I set up the adjacent surface between both as a virtual surface, expecting that the two airnodes would be linked to each other (air motion link).
I assumed that if I set up a ventilation rate in one airnode, the other airnode would be affected, and the two air temperatures would be really close to each other. Because I assumed that thanks to the virtual surface, the two airnodes would act like one airnode.
However there is not such link between both according to the air temperature result.
Therefore, I coupled the two airnodes in the TYP56, but i'm surprised that I have to set up a ventilation rate between the airnodes.
Also, I dont understand why there are "upper" and "lower" configurations.

Finally, I tried to couple the two airnodes using TRNFLOW, but when I use "large opening", nothing appear on the left frame, which still shows "undefined". Thus I get an error when I try to close TRNBUILD.
I think I don't use TRNFLOW or the coupling option correctly. Can someone help me or direct me to a tutorial so that I can learn how to couple the two airnodes properly?
Thanks a lot in advance
Regards

--
Wirich Freppel

hotline's picture
Offline
Joined: 2016-04-05
Reputation: 0