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: thornton@tess-inc.com
To: trnsys-users@cae.wisc.edu
Date: Thu, 14 Jun 2012 17:30:58 -0500
Subject: Re: [TRNSYS-users] New TESS Solar components
<Also, I was familiar with the 1D IAM datafile format for a collector that follows the zenith/altitude angle of the sun, but I am unfamiliar with how to setup a 2D IAM file for such a collector. The default proforma for the type1288 component references a sample 2D IAM file, so I assume 2D is applicable and 1D is not. If the collector will track the altitude angle automatically, why do I need a 2D IAM datafile?>
There are three TESS models that incoporate the test results from the EN12975-2 collector standard.
Type 1288 takes a 2-D IAM file based on the longitudinal and transverse angles
Type 1289 takes a 1-D IAM file based on the incidence angle for beam radiation
Type 1290 takes the b0 and b1 parameters popularized by ASHRAE for the 1-D IAM calculations based on the incidence angle of beam radiation
To answer your question about why you would need 2-D IAMs, it's the most rigorous of all the solutions - by far. The collector you are studying may track the altitude angle automatically but another collector may not track at all. Or the user may want to study the impact of imperfect tracking, or limitations in the tracking angles. The other reason is much simpler - many collector tests report 2-D IAMs for tracking collectors based on the longitudinal and transverse angles. That's why there are three version (88,89,90), differing only in IAM. Just there to give the user an option corresponding to the information he/she may have available.
Jeff
Jeff Thornton
President - TESS
--Forwarded Message Attachment--
From: thornton@tess-inc.com
To: trnsys-users@cae.wisc.edu
Date: Thu, 14 Jun 2012 17:51:09 -0500
Subject: Re: [TRNSYS-users] Abouth Typ557
--Forwarded Message Attachment--
From: wissantaise@gmail.com
To: trnsys-users@cae.wisc.edu
Date: Fri, 15 Jun 2012 11:55:14 +0800
Subject: [TRNSYS-users] Type 65 problems results
--Forwarded Message Attachment--
From: angel.carrera@aiguasol.coop
To: trnsys-users@cae.wisc.edu
Date: Fri, 15 Jun 2012 08:18:53 +0200
Subject: [TRNSYS-users] Stochastic occupancy profiles
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
--Forwarded Message Attachment--
From: richard.thygesen@mdh.se
To: TRNSYS-users@engr.wisc.edu
Date: Fri, 15 Jun 2012 10:20:41 +0200
Subject: [TRNSYS-users] Ground reflection type194
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
On 06/14/2012 1:47 am, Lei Wang wrote:
> Dear All,
>
> I have a question on Type 676. According to the help documents, the
> energy delivered to the chiller by the steam source is calculated
> using equation 676.4
> Qsteam=(Capacity_rated/COP_rated)*F_designEnergyInput.
>
> The F_designEnergyInput is the value returned by the thrid call to
> Dynamic Data and is the value specified in the S3 data file. It only
> is the function of cooling water temperature and the fraction of
> design load, which is calcuated by equation 676.3 .
> f_DesignLoad=Q_remove/Capacity_rated
>
>
> The energy consumption calculation is only based on the fraction of
> design load, cooling water temperature and don't consider chilled
> water outlet temperature. The chilled outlet temperature is only used
> for calculating Capacity (specified in the S2 file).
>
> In my opinion, I don't think this model can calculate the energy
> consumption correctly, when the chilled water supply temperature is
> reset.
>
> Thanks
>
> Lei Wang
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users@cae.wisc.edu
> https://mailman.cae.wisc.edu/listinfo/trnsys-users
--Forwarded Message Attachment--
From: thornton@tess-inc.com
To: trnsys-users@cae.wisc.edu
Date: Thu, 14 Jun 2012 17:30:58 -0500
Subject: Re: [TRNSYS-users] New TESS Solar components
<Also, I was familiar with the 1D IAM datafile format for a collector that follows the zenith/altitude angle of the sun, but I am unfamiliar with how to setup a 2D IAM file for such a collector. The default proforma for the type1288 component references a sample 2D IAM file, so I assume 2D is applicable and 1D is not. If the collector will track the altitude angle automatically, why do I need a 2D IAM datafile?>
There are three TESS models that incoporate the test results from the EN12975-2 collector standard.
Type 1288 takes a 2-D IAM file based on the longitudinal and transverse angles
Type 1289 takes a 1-D IAM file based on the incidence angle for beam radiation
Type 1290 takes the b0 and b1 parameters popularized by ASHRAE for the 1-D IAM calculations based on the incidence angle of beam radiation
To answer your question about why you would need 2-D IAMs, it's the most rigorous of all the solutions - by far. The collector you are studying may track the altitude angle automatically but another collector may not track at all. Or the user may want to study the impact of imperfect tracking, or limitations in the tracking angles. The other reason is much simpler - many collector tests report 2-D IAMs for tracking collectors based on the longitudinal and transverse angles. That's why there are three version (88,89,90), differing only in IAM. Just there to give the user an option corresponding to the information he/she may have available.
Jeff
Jeff Thornton
President - TESS
--Forwarded Message Attachment--
From: thornton@tess-inc.com
To: trnsys-users@cae.wisc.edu
Date: Thu, 14 Jun 2012 17:51:09 -0500
Subject: Re: [TRNSYS-users] Abouth Typ557
Cathy,
We are in the process of re-writing 557 to be able to be used more than
once in a simulation. In the meantime, we do have a second version of
type 557 recoded with a different name and number that allows you to use
two of them in a simulation. They will not interact thermally but it
does allow you to have two separate borefields. Let me know if you are
interested.
Jeff
---
Jeff Thornton
President - TESS LLC
22 N. Carroll Street, Madison WI USA 53703
Office: (608) 274-2577 Fax: (608) 278-1475
www.tess-inc.com
E-Mail: thornton@tess-inc.com
On 06/13/2012 2:52 am, a8304506@graduate.hku.hk wrote:
> Hello, Cathy.
>
> You cannot have more than one Type557 in one project. Moreover, the
> model used
> in Type557 assumes that all boreholes function simultaneously.
> Hence, you have
> to try by other means.
>
> Best Regards
> LEE, Chun Kwong
> University of Hong Kong
>
> Quoting sun liang <liangliang3184@yahoo.com.cn>:
>
>> Hello Trnsys users:
>> �
>> I�want to evaluate the�energy performance and control strategies of
>> �a ground
>> source heat pump system. In this system, the ground heat exchangers
>> are
>> divided into to two subregions.� When the cooling load is
>> less than the
> half
>> of the designed cooling load, the ground heat exchangers of one
>> subregion�are
>> uesd to providd cold water. And the ground heat exchangers of the
>> other
>> sunregion do not work. While in the hottest period, all the ground
>> heat
>> exchangers of two subregions need to work together.� So I
>> need two
> models of
>> Type557 to simulate the energy perfomance of ground heat exchangers
>> of two
>> subregions.� However, the Trnsys project with two modules of
>> Type557
> can not
>> work. The error is listed as follows:
>> ��� Generated by
>> Type����
> :�� 557
>> ��� TRNSYS Message��� 103
>> : The
> TRNSYS TYPE checking routine has found an
>> inconsistency in the specified component between the input file and
>> the
>> information expected by the Type
>> ��� Reported information� : The maximum
>> number of
> occurences of this
>> component model in a TRNSYS input file has been exceeded.
>> �
>> I want to know how I can do to deal with this problem. I am looking
>> forward
>> to your reply. Thank you very much.
>> �
>> Best regards,
>> Cathy
--Forwarded Message Attachment--
From: wissantaise@gmail.com
To: trnsys-users@cae.wisc.edu
Date: Fri, 15 Jun 2012 11:55:14 +0800
Subject: [TRNSYS-users] Type 65 problems results
Hi trnsys users,
i use Type 65, type 88, type 112
I want to explore the behavior of two rooms with air conditioning.
I have two cooling set point temperatures for the two rooms (type 88). One is 24 °C, the other is 26°C the both has a fan to regulate the temperature. The point is, I use the type 65 for the results, and even if I have two different set point temperature, the results are the same, the temperature in the two rooms is the same, and the both rooms follow the 26°C set point temperature.
Why ? do you have any ideas ?
Sara Guilbert
CETHIL LYON FRANCE
--Forwarded Message Attachment--
From: angel.carrera@aiguasol.coop
To: trnsys-users@cae.wisc.edu
Date: Fri, 15 Jun 2012 08:18:53 +0200
Subject: [TRNSYS-users] Stochastic occupancy profiles
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
--Forwarded Message Attachment--
From: richard.thygesen@mdh.se
To: TRNSYS-users@engr.wisc.edu
Date: Fri, 15 Jun 2012 10:20:41 +0200
Subject: [TRNSYS-users] Ground reflection type194
Hi.
I wonder why the Ground reflection in type 15-6 , input 4 and 5, doesn’t seem to influence the diffuse part of the radiation? I have a surface with a 70° slope and the diffuse part of the radiation doesn’t change when I change the ground reflection.
I have tried one case with extremely high reflection and one with no reflection without any difference in output.
Does anyone know the source of the problem?
Best regards
Richard Thygesen