Re: [TRNSYS-users] TRNFOW changes airnode to constant pressure node

Hi,

The names of the thermal airnodes are: F2_SWNW_CMA, F2_SW_CMA and F2_NW_CMA

The ID links where it happens are:

ID 4 from node F1_SW_CMA to node F2_SWNW_CMA, from height 2.9 to height 0

ID 5 from node F2_SWNW_CMA to node F2_SW_CMA, from height 5.45 to height 0

ID 6 from node F2_SW_CMA to exterior node EN_SW, from height 0 to height 10.8

ID 10 from node F1_NE_CMA2 to node F2_SWNW_CMA, from height 2.9 to height 0

ID 11 from node F2_SWNW_CMA to node F2_NW_CMA, from height 5.45 to height 0

ID 12 from node F2_NW_CMA to exterior node EN_NW, from height 0 to height 10.8

Please find attached the .b17 file.

Thank you

annamaria

From: trnsys-users-bounces@cae.wisc.edu [mailto:trnsys-users-bounces@cae.wisc.edu] On Behalf Of hotline
Sent: Tuesday, May 13, 2014 11:47 AM
To: TRNSYS users mailing list at the Solar Energy Lab, UW-Madison
Subject: Re: [TRNSYS-users] TRNFOW changes airnode to constant pressure node

Dear Annamaria,

What are the names of the thermal airnodes/zones?

Do the name of the modified airnode has “PA” in the name?

Can you send me the b17 and the link ID where this happens.

Best regards,

Transsolar Software Team

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Von: trnsys-users-bounces@cae.wisc.edu [mailto:trnsys-users-bounces@cae.wisc.edu] Im Auftrag von Belleri Annamaria
Gesendet: Dienstag, 13. Mai 2014 10:15
An: trnsys-users@cae.wisc.edu
Betreff: [TRNSYS-users] TRNFOW changes airnode to constant pressure node

Dear TRNSYS users,

I am using TRNFLOW to model airflows between zones. I have horizontal openings to connect ground floor zones to first floor zones so I set the own height factor of the large opening to 0.

When I save the bui file, the links to the thermal airnode are replaced with constant pressure nodes, with 0 Pa pressure and the Trnbuild stops working.

Why is this happening?

Thanks in advance,

Annamaria

_ _

Annamaria Belleri
Institute for Renewable Energy

EURAC research
Via Zuegg 11, I-39100 Bolzano

t +39 0471 055 658

f +39 0471 055 039

m +39 333 8569899

annamaria.belleri@eurac.edu

www.eurac.edu

EURAC research

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