Re: [TRNSYS-users] zone air temperature (NTYPE 1: TAIR)

2010/12/17 <trnsys-users-request@cae.wisc.edu>

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Today's Topics:

1. Re: Type 56 (David BRADLEY)
2. Re: Psychrometrics (David BRADLEY)
3. Re : Re: Psychrometrics (Jérôme Deroche)
4. error when opening sketchup (Annie Marston)

---------- 已转发邮件 ----------
From: David BRADLEY <d.bradley@tess-inc.com>
To: Abduljalil Ali Al-Abidi <abo_anas4@yahoo.com>
Date: Thu, 16 Dec 2010 12:47:43 -0600
Subject: Re: [TRNSYS-users] Type 56
Abduljalil,
In order to change the wall layers, open TRNBuild and open your building description file (*.bui or *.b17). Select Typemanager: Walls from the menus at the top of the screen. Select the appropriate wall from the drop-down list. Double click on a layer in order to change its thickness.
Best,
David

On 12/16/2010 03:26, Abduljalil Ali Al-Abidi wrote:
Dear Trnsys user
I am a new trnsys user and I want to change the thickness of the wall insulation in the tape 56 ( multi-zone building ). Is it possible to change this thickness in this type ex. for insulation = 5 cm to 20 cm step 5cm.
I would like to study the effect of insulation thick to the performance of the system
best regards
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-- 
***************************
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
---------- 已转发邮件 ----------
From: David BRADLEY <d.bradley@tess-inc.com>
To: "Jérôme Deroche" <deroche.jerome@cedre-sophia.com>
Date: Thu, 16 Dec 2010 12:50:55 -0600
Subject: Re: [TRNSYS-users] Psychrometrics
Jérôme,
What is most likely happening is that at a pressure of 1atm, your combination of the dry bulb temperature and the absolute humidity ratio are on the wrong side of the saturation line. Since that is physically impossible, the psychometric routine keeps your dry bulb temperature and resets the absolute humidity ratio to the value it would be if the relative humidity were 100%.
Best,
David

On 12/16/2010 04:21, wrote:
Hello,
i'm using a psychrometrics type with dry bulb temperature and absolute humidity ratio in inputs. Pressure input is set to 1 atm.

I have noticed that sometimes there is a difference between the input humidity ratio and the output humidity ratio. The difference ratio is about 1 to 12%.

Could someone explain to me why this difference happens?

Thank you

Jérôme DEROCHE
Ingénieur d'études

CEDRE

Tel: 04 92 96 03 77
Port: 06 25 11 21 93
Ophira 1, 1 place Bermond
06560 SOPHIA-ANTIPOLIS
_______________________________________________
TRNSYS-users mailing list
TRNSYS-users@cae.wisc.edu
https://www-old.cae.wisc.edu/mailman/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
---------- 已转发邮件 ----------
From: "Jérôme Deroche" <deroche.jerome@cedre-sophia.com>
To: David BRADLEY <d.bradley@tess-inc.com>
Date: Fri, 17 Dec 2010 05:08:17 -0500 (EST)
Subject: [TRNSYS-users] Re : Re: Psychrometrics
Your answers are right.
Thank you very much

Jérôme DEROCHE
Ingénieur d'études

CEDRE

Tel: 04 92 96 03 77
Port: 06 25 11 21 93
Ophira 1, 1 place Bermond
06560 SOPHIA-ANTIPOLIS

Message original Re : Re: [TRNSYS-users] Psychrometrics
De : David BRADLEY <d.bradley@tess-inc.com>
A : Jérôme Deroche <deroche.jerome@cedre-sophia.com>
Date : 2010-12-16 19:51:05

Jérôme,
What is most likely happening is that at a pressure of 1atm, your combination of the dry bulb temperature and the absolute humidity ratio are on the wrong side of the saturation line. Since that is physically impossible, the psychometric routine keeps your dry bulb temperature and resets the absolute humidity ratio to the value it would be if the relative humidity were 100%.
Best,
David

On 12/16/2010 04:21, wrote:
Hello,
i'm using a psychrometrics type with dry bulb temperature and absolute humidity ratio in inputs. Pressure input is set to 1 atm.

I have noticed that sometimes there is a difference between the input humidity ratio and the output humidity ratio. The difference ratio is about 1 to 12%.

Could someone explain to me why this difference happens?

Thank you

Jérôme DEROCHE
Ingénieur d'études

CEDRE

Tel: 04 92 96 03 77
Port: 06 25 11 21 93
Ophira 1, 1 place Bermond
06560 SOPHIA-ANTIPOLIS
_______________________________________________
TRNSYS-users mailing list
TRNSYS-users@cae.wisc.edu
https://www-old.cae.wisc.edu/mailman/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
---------- 已转发邮件 ----------
From: Annie Marston <A.Marston@eb-engineers.com>
To: "trnsys-users@cae.wisc.edu" <trnsys-users@cae.wisc.edu>
Date: Thu, 16 Dec 2010 14:30:35 +0000
Subject: [TRNSYS-users] error when opening sketchup

Hi,

I am using the TRNSYS 3d plugin for SketchUp V7. I have v8 but the plugin doesn’t seem to attach to v8 (is this correct? Is there a plugin for v8). Whenever I open sketch up I get the following error:

Sorry… the plugin has encountered an error. This error may cause unpredictable behavior in the plugin continue this session with caution! It would probably be a good idea to exit SketchUp and start again. (unfortunately this happens everytime I open sketchup)

For help please contact…

Error:

NameError

Wrong constant name jectinfoInterface

Backtrace:

C:/Program Files (x86)/Google/Google SketchUp 7/Plugins/Trnsys3d/lib/DialogManager.rb:31:in `const_get'

C:/Program Files (x86)/Google/Google SketchUp 7/Plugins/Trnsys3d/lib/DialogManager.rb:31:in `restore_state'

C:/Program Files (x86)/Google/Google SketchUp 7/Plugins/Trnsys3d/lib/DialogManager.rb:31:in `initialize'

C:/Program Files (x86)/Google/Google SketchUp 7/Plugins/Trnsys3d/lib/AsynchProc.rb:13:in `call'

My version of the plugin is 1.0.5.362

Can you help

Thanks

Annie

Dr. A. Marston, Ph.D. LEED® AP

Building Performance Analyst

Ebert & Baumann Consulting Engineers, Inc.

An Enterprise of the Ebert-Consulting Group

734 15^th Street, NW

Suite 1000

Washington, D.C. 20005, USA

Tel +1.202.608.1334

Fax +1.202.544.1434

a.marston@eb-engineers.com

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