[TRNSYS-users] question of active layer

[王洋 <wanghongyang1767@gmail.com>]

Dear all,

      I have the questions about Active Layer:

1. The floor heating area is 27.2 m^2 in our test room, but the floor area is 40 m^2. Like this situation, Can I set two floors in TRNBuild? One is the floor  with 40 m^2, another is floor with 27.2 m^2 active layer? Or others?

2. I only know the power of this floor heating 1400 W. How can I define it? Or by what method to stand for this power?

     Many thanks in advance!

     Br.

     wang

在 2011年9月22日 上午9:56，王洋 <wanghongyang1767@gmail.com>写道：

Dear all,

     I have a simple question about Type 23. Is it Digital or Continuous Controller? Continuous?

 Is Type 22? Digital? I'm a little puzzled.

   Many thanks in advance!

  Br.

 wang

2011/9/21 <trnsys-users-request@cae.wisc.edu>

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Today's Topics:

  1. Active Layer and auto segmentation (Avesani Stefano )
  2. Re: Step by step example (Matt Duffy)


---------- 已转发邮件 ----------
From: "Avesani Stefano " <stefano.avesani@eurac.edu>
To: <trnsys-users@cae.wisc.edu>
Date: Wed, 21 Sep 2011 18:07:09 +0200
Subject: [TRNSYS-users] Active Layer and auto segmentation

Dear all,

 

Why is not the button “Divide surface” always present?

I am simulating a radiant wall with “standard” features (pipe spacing 15 cm, pipe ext diameter 2 cm, pipe thickness 2 mm).

 

Furthermore, I have found no information about how the parameter “number of fluid loops” is taken into account in the mathematical model. Do you have any idea?

 

Last question: how does TRNSYS calculate the minimum allowed inlet mass flowrate in case of a “number of fluid loops” greater than 1?

 

Thanks a lot!

With best regards!

Stefano

 

---------- 已转发邮件 ----------
From: "Matt Duffy" <duffy@tess-inc.com>
To: fouih.younness@gmail.com, trnsys-users@cae.wisc.edu
Date: Wed, 21 Sep 2011 11:46:25 -0500 (CDT)
Subject: Re: [TRNSYS-users] Step by step example

Dear Younness,

The TRNSYS Volume 1 document steps through a simple TRNSYS simulation. The heat exchanger components are very similar in concept to the other typical TRNSYS components such that it has time independent (constant) parameters, inputs (either variable from another component or a constant input value), and outputs. There is the TRNSYS Mathematical Reference Volume 4 document with information about the heat exchanger models in TRNSYS. There are a few examples with the TESS HVAC Library in the ".\Tess Models\Examples" directory with TESS Heat Exchanger models.

Best regards,

Matt Duffy

----- Original Message -----
From: "youness EL FOUIH" <fouih.younness@gmail.com>
Sent: Tue, September 20, 2011 9:55
Subject: [TRNSYS-users] Step by step example

Hello,
Please if any one of you have a  "step-by-step" tutorial showing how we can simulate a heat exchanger system (any one) using TRNSYS, I would be grateful if can send it to me or show me the URL of the tutorial.
thanks a lot.
Younness

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