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Today's Topics:
1. (no subject) (?mit Esiyok)
2. Skyscraper-Energy consumption of the higher levels
(Fr?d?ric Oleksandrow)
3. Re: Atrium simulation (Marion Hiller)
4. Surface condensation (thiemann.stefan@vdi.de)
---------- 已转发邮件 ----------
From: "\"Ümit Esiyok\"" <umit.esiyok@uni-dortmund.de>
To: trnsys-users@cae.wisc.edu
Date: Mon, 9 Aug 2010 20:57:24 +0200
Subject: [TRNSYS-users] (no subject)
Dear All,
I am going to simulate a five -storey high Atrium. The roof is fully
glazed, I divide the atrium into three Zones but from Archives of TRNSYS
mailing list I saw an E-mail from David, says lowest zone receive no solar
radiation. have anyone an experience with Atrium simulation.
Best Regards
--
Ümit Esiyok
e-mails: umit.esiyok@uni-dortmund.de
---------- 已转发邮件 ----------
From: "Frédéric Oleksandrow" <frederic.o@vkgroup.be>
To: "trnsys-users@cae.wisc.edu" <trnsys-users@cae.wisc.edu>
Date: Tue, 10 Aug 2010 07:06:30 +0000
Subject: [TRNSYS-users] Skyscraper-Energy consumption of the higher levels
Hello trnsys users,
I’d like to modelize energy consumption for a skyscraper.
I assume that energy consumption is not the same at the 1st floor than at the 70th floor.
How can I take in consideration the wind effects, the stack effect, …for the 70th floor with trnsys ?
Thanks to anybody who can help me,
Salutations distinguées,
Frédéric Oleksandrow-Ingénieur Civil en Energie
project engineer
VK ENGINEERING
Building Services
Avenue Clemenceau 87
B-1070 Bruxelles Brussel
Belgium
T +32 2 414 07 77
F +32 2 414 04 98
E frederic.o@vkgroup.be
W www.vkgroup.be
P Denk aan het milieu vooraleer je dit bericht uitprint - Avant d'imprimer, pensez à l'environnement - Before printing, think about the environment**** DISCLAIMER ****
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---------- 已转发邮件 ----------
From: "Marion Hiller" <hiller@transsolar.com>
To: trnsys-users <trnsys-users@cae.wisc.edu>
Date: Tue, 10 Aug 2010 11:01:11 +0200
Subject: Re: [TRNSYS-users] Atrium simulation
Ümit,
For TRNSYS 17, one main focus was the improvement of the simulation of
highly glazed
large spaces such as multi-story atriums with respect to accuracy, user
effort and error-proneness.
In TRNSYS 17 a zone can have multiple airnodes. The solar (diffuse and
beam) radiation is distributed to all surfaces
of all airnodes of the zone. In addition, for external shading factors
of solar radiation can be
handled automatically. Also, for convex zones the incoming beam
radiation can be distributed automatically
depending on the suns position, the external shading and the zone
geometry.
In TRNSYS 16 everything has to be done manually. The atrium has to be
divided into three zone separated
by so-called fictive windows in order to allow solar radiation
penetration from one zone to another zone.
Therefore, for each zone GEOSURF factors for beam radiation have to be
defined. There was no control of Diffuse radiation.
After the transmission through the second adjacent window all solar
radiation is treated as diffuse radiation.
Thus, also the lowest zone receives solar radiation but it is
distributed as diffuse radiation.
For atrium simulation I definitely recommend to use TRNSYS 17.
Marion
-----Ursprüngliche Nachricht-----
Von: "Ümit Esiyok" [mailto:umit.esiyok@uni-dortmund.de]
Gesendet: Montag, 9. August 2010 20:57
An: trnsys-users@cae.wisc.edu
Betreff: [TRNSYS-users] (no subject)
Dear All,
I am going to simulate a five -storey high Atrium. The roof is fully
glazed, I divide the atrium into three Zones but from Archives of TRNSYS
mailing list I saw an E-mail from David, says lowest zone receive no
solar radiation. have anyone an experience with Atrium simulation.
Best Regards
--
Ümit Esiyok
e-mails: umit.esiyok@uni-dortmund.de
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---------- 已转发邮件 ----------
From: <thiemann.stefan@vdi.de>
To: <TRNSYS-users@cae.wisc.edu>
Date: Tue, 10 Aug 2010 17:46:37 +0200
Subject: [TRNSYS-users] Surface condensation
Hello,
I have a general queation concerning condensation in Type 56. Does the
inside condensation flag for a wall consider condensation due to low
surface temperature when using an active layer for cooling or is it
the same condensation flag that is used if saturation of the air int
the room is reached?
Thanks for a short explanation of the condensation model!
Stefan
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