Re: [TRNSYS-users] Monitoring with type 155,Matlab

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@aiguasol.coop
CC: trnsys-users@cae.wisc.edu
To: d.bradley@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@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@aiguasol.coop
http://www.aiguasol.coop
_______________________________________________
TRNSYS-users mailing list
TRNSYS-users@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@tess-inc.com

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

--
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@aiguasol.coop
http://www.aiguasol.coop

--Forwarded Message Attachment--
From: ewen.raballand@gmail.com
CC: trnsys-users@engr.wisc.edu
To: hiller@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@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@gmail.com]
Gesendet: Montag, 18. Juni 2012 18:15
An: trnsys-users@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@hotmail.com
To: trnsys-users@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@hochschule-bc.de
To: trnsys-users@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