[TRNSYS-users] Monitoring with type 155,Matlab

Tue Jun 19 05:52:30 PDT 2012

Dear Trnsys users ,

I am using Trnsys17 Simulation studio and I would like to monitor some results of my 3d building with type155 Matlab.
I have allready installed MatlabR2010a on my machine but i fail to run the example of callingMAtlab.
I
 would much appreciate some instructions of how to use this specific 
type and which connections should i make , in order to simulate it and 
continue with my work.
Thank you very much for your help! 

Best regards, 
Kostas
--Forwarded Message Attachment--
From: angel.carrera at aiguasol.coop
CC: trnsys-users at cae.wisc.edu
To: d.bradley at tess-inc.com
Date: Tue, 19 Jun 2012 10:33:26 +0200
Subject: Re: [TRNSYS-users] Stochastic occupancy profiles

Dear David,

thanks a lot for your answer. By the way, do you know any way of calculating the cumulative distribution function for a random number from a normal distribution?
Best,

Angel

2012/6/18 David BRADLEY <d.bradley at tess-inc.com>

    Angel,

      There are two components in the TESS Utility Library (Type577, and
    Type578) which provide a random number with either a uniform or a
    normal distribution. When I have needed to make a schedule that has
    some random element to it, I have used one of these two Types
    combined with my set schedule in an equation so that I don't get
    quite the same schedule from day to day. I imagine you could do the
    same for setpoints.

    Best,

     David

    On 6/15/2012 01:18, Angel Carrera wrote:

      Dear all,

      i'm just beginning to work on the inclusion of stochastic
      occupancy profiles in type 56. After briefly reviewing the
      theoretical background i could find and before starting to work
      with studio, i thought that probably some of you have experience
      with this issue, so I would highly appreciate any recommendation,
      reference or experience you may have that could help to anticipate
      potential problems. Specially, I'm worried about the definition of
      stochastic setpoints for heating and cooling systems. Any comments
      are welcome, kind regards

      Angel

      -- 

      Àngel Carrera

      Responsable I+D

        Àrea tècnica

      Sistemes Avançats d'Energia Solar
        Tèrmica SCCL
      C/ Roger de Llúria, 29 3r 2a
        08009 Barcelona
      Tel: (+34) 93 342 47 55 Fax:
        (+34) 93 342 47 56

        angel.carrera at aiguasol.coop

        http://www.aiguasol.coop

      _______________________________________________
TRNSYS-users mailing list
TRNSYS-users at cae.wisc.edu
https://mailman.cae.wisc.edu/listinfo/trnsys-users

    -- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com

-- 
Àngel CarreraResponsable I+D

Àrea
 tècnica
Sistemes Avançats d'Energia Solar 
Tèrmica SCCL
C/ Roger de Llúria, 29 3r 2a 08009 
BarcelonaTel: (+34) 93 342 47 55 Fax: (+34) 93 342 47 56

angel.carrera at aiguasol.coop
http://www.aiguasol.coop

--Forwarded Message Attachment--
From: ewen.raballand at gmail.com
CC: trnsys-users at engr.wisc.edu
To: hiller at transsolar.com
Date: Tue, 19 Jun 2012 10:53:44 +0200
Subject: Re: [TRNSYS-users] Use of Trnflow with vitual walls

Thank you for your answer,
My coupling was'nt activated in both airnodes so I got an error.

Best regards,

Ewen

2012/6/19 Marion Hiller <hiller at transsolar.com>

Ewen,

You may check the manual 05-MultizoneBuilding.pdf
: 

5.2.4.10.
Coupling between airnodes of same zone 

Since Version 17, a thermal zone may consist
of more than one airnode.

 In general, these airnodes do not have a
common wall. 

For defining a coupling between these
airnode within the same zone, this regime option can be used. 

Each airnode may get up to
two coupling airflows from “adjacent” airnodes. 

(Note: “Upper”
and “lower” are just names which don’t correspond to the actual
location). 

First, the coupling has to
be activated, than the airnode from which the air flow is coming has to be
selected. 

Finally, the coupling
airflow has to be defined as a constant, schedule or input.

If you have more than one
arinode in one zone an additional button in the regime called “coupling”
is visible

In the airnode window.

You need activate this regime
coupling in both airnodes. 

Marion

Dipl.-Ing.
Marion Hiller 

TRANSSOLAR:
KlimaEngineering - Technologien für energieeffizientes Bauen und Nutzerkomfort
in Gebäude 

Munich - New York - Stuttgart +
49.711.67976.0 

Transsolar
Energietechnik GmbH, Curiestrasse 2, 70563 Stuttgart 

Amtsgericht Stuttgart - HRB 23347,
Steuernummer 99073/00911, USt-IdNr.: DE152272639

Geschäftsführer:
Dipl.Ing. Matthias Schuler, Dipl.Ing. Thomas Auer, Dipl.Phys. Stefan Holst,
Prof. Dipl.-Ing. Bleicher 

Von: ewen raballand
[mailto:ewen.raballand at gmail.com] 

Gesendet: Montag, 18. Juni 2012
18:15

An: trnsys-users at cae.wisc.edu

Betreff: [TRNSYS-users] Use of
Trnflow with vitual walls

Dear
users,

I'm trying to use trnflow for a multiple airnode zone (3 airnodes). My problem
is that i cannot define any airlink between my airnodes because there is no
adjacent wall between them : virtual ceilings have been modelized. I know it's
possible to define couplings between the airnodes but trnflow doesn't seem able
to use them. Is there any solution ?

Thank you for your help,

Ewen

--Forwarded Message Attachment--
From: spanakiart at hotmail.com
To: trnsys-users at cae.wisc.edu
Date: Tue, 19 Jun 2012 12:11:11 +0300
Subject: [TRNSYS-users] shading an horizontal surface

Dear trnsys users

how can I totally shade the surface of an element (ec roof) using a trnsys component (probably type 67). 

how the "opening" in type 68 is considered to be horizontal? should type 67 be combined to another type?

ps: sorryfor double-senting the yesterday e-mail

yours sincerelly

a s

--Forwarded Message Attachment--
From: michael.doebele at hochschule-bc.de
To: trnsys-users at engr.wisc.edu
Date: Mon, 18 Jun 2012 23:24:33 +0200
Subject: [TRNSYS-users] minmassflowrate

Dear TRNSSYS User,

i am trying to run an active layer with an specific massflow rate of 15 
kg/h m² (absolute value 654.15 kg/h). TRNBuild calculates a minimum 
allowed massflow rate of 10.25 kg/h. (446 kg/h) ....so far so good.
But when I set this massflow rate in TRNSYS Studio via Input to the 
wanted 654.15 kg/h  I get following error

"specific fluid mass flow of active layer in surface 2 below minimum
value of16.26/m2h, increase the minimum mass flow rate or use
autosegmentation feature of TRNBuild for subdividing the surface."

This is a really strange behavior. The massflow criteria varies and 
seems to depend on the inlet temperature.. I also tried autosegmentation 
- I didn´t help, I got the same error message.
Please help me out here..

Thank you

Michael Döbele

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/attachments/20120619/34d08024/attachment-0001.htm>