Re: [TRNSYS-users] TRNSYS-users Digest, Vol 149, Issue 39

Error in type 56: minimum desired mass flow rate

Hi all,

I'm also working with Trnsys 17, and I have the same error, I tried to find a solution for this error, but unfortunately I can't find it until now.

Best Reagrds,

Mohamed

2017-05-17 21:08 GMT+01:00 via TRNSYS-users <trnsys-users@lists.onebuilding.org>:

Send TRNSYS-users mailing list submissions to
trnsys-users@lists.onebuilding.org

To subscribe or unsubscribe via the World Wide Web, visit
http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org

or, via email, send a message with subject or body 'help' to
trnsys-users-request@lists.onebuilding.org

You can reach the person managing the list at
trnsys-users-owner@lists.onebuilding.org

When replying, please edit your Subject line so it is more specific
than "Re: Contents of TRNSYS-users digest..."

Today's Topics:

1. Error in type 56: minimum desired mass flow rate
(Mar?a Regidor S?nchez via TRNSYS-users)
2. type 33 error (Amirreza Heidary via TRNSYS-users)
3. Re: Error in type 56: minimum desired mass flow rate
(David BRADLEY via TRNSYS-users)
4. HELP (Karim Nahi via TRNSYS-users)

---------- Message transféré ----------
From: "María Regidor Sánchez via TRNSYS-users" <trnsys-users@lists.onebuilding.org>
To: trnsys-users@lists.onebuilding.org
Cc:
Bcc:
Date: Wed, 17 May 2017 10:04:15 +0200
Subject: [TRNSYS-users] Error in type 56: minimum desired mass flow rate

Hi,

I'm working with Trnsys 17 and I haven't had this kind of error until now:

"Specific fluid mass flow of active layer in surface 22 below minimum value of 3.89 kg/m2h Please, increase the minimum mass flow rate or use the autosegmentation feature of TRNBuild for subdividing the surface."

I have tried everything, from increasing the desired flow rate, autosegmentating the surface to changing the type of wall without active layer or deleting the surface, but the error persists and I don't know what more to do.

Has anyone ever had this problem?

Thanks!

---------- Message transféré ----------
From: Amirreza Heidary via TRNSYS-users <trnsys-users@lists.onebuilding.org>
To: "TRNSYS users mailing list at OneBuilding.org" <TRNSYS-users@lists.onebuilding.org>
Cc:
Bcc:
Date: Wed, 17 May 2017 15:35:00 +0430
Subject: [TRNSYS-users] type 33 error

Hello
Using type 33c (psychrometric) for fan outlet air, I'm getting following error. I checked the inputs, there are just 2 inputs (temperature and humidity ratio) and pressure is 1 atmosphere. how to solve it ?

Thank you

--------------------------------------------------------------------------------------------------------------------------------------------------

amirrezaheidary

master student of energy systems Engineering

Sharif university of technology

Tehran-Iran

E-mail address:

heidari@energy.sharif.edu

a mirrezaheidarysbu@gmail.com

P Save a tree... Please don't print this E-mail unless you really need to.

Sent with Mailtrack

---------- Message transféré ----------
From: David BRADLEY via TRNSYS-users <trnsys-users@lists.onebuilding.org>
To: "María Regidor Sánchez" <mregsan@gmail.com>, "TRNSYS users mailing list at OneBuilding.org" <trnsys-users@lists.onebuilding.org>
Cc:
Bcc:
Date: Wed, 17 May 2017 08:53:41 -0500
Subject: Re: [TRNSYS-users] Error in type 56: minimum desired mass flow rate
María,

This sounds like one that should be sent to your distributor for some assistance. If you aren't sure who to contact, please let me know and I can help find the right hotline based on your license.

best,

David

On 05/17/2017 03:04, María Regidor Sánchez via TRNSYS-users wrote:
Hi,

I'm working with Trnsys 17 and I haven't had this kind of error until now:

"Specific fluid mass flow of active layer in surface 22 below minimum value of 3.89 kg/m2h Please, increase the minimum mass flow rate or use the autosegmentation feature of TRNBuild for subdividing the surface."

I have tried everything, from increasing the desired flow rate, autosegmentating the surface to changing the type of wall without active layer or deleting the surface, but the error persists and I don't know what more to do.

Has anyone ever had this problem?

Thanks!
_______________________________________________
TRNSYS-users mailing list
TRNSYS-users@lists.onebuilding.org
http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org
-- 
***************************
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
---------- Message transféré ---------- From: Karim Nahi via TRNSYS-users <trnsys-users@lists.onebuilding.org> To: "TRNSYS users mailing list at OneBuilding.org" <trnsys-users@lists.onebuilding.org> Cc: Bcc: Date: Wed, 17 May 2017 18:02:00 +0200 Subject: [TRNSYS-users] HELP
Hello everybody,

I come today to ask you a particular case.

I have an output temperature of a model that I want to use to influence another input. Let me explain, depending on the difference in temperature at the outlet (delta T), I want to adjust my inlet temperature so that the inlet temperature follows the variation (T2-T1). Ie the new input temperature will be equal to the input temperature I have + the output temperature variation. (Tin (new) = Tin + (All 2 - All 2)). But I do not know how to have the temperature difference on TRNSYS.

I hope it's clear enough, I know it's not obvious.
Thank you in advance.
Best regards.
ᐧ
_______________________________________________ TRNSYS-users mailing list TRNSYS-users@lists.onebuilding.org http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org

Krarouch Mohamed

Doctorant en Département Physique

Laboratoire de Mécanique des Fluides et Énergétique

Faculté des sciences Semlalia

Université Cadi Ayyad Marrakech