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

Thu May 18 08:37:24 PDT 2017

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

[image: Images intégrées 1]

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

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> 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 at lists.onebuilding.org>
> To: trnsys-users at 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 at lists.onebuildin
> g.org>
> To: "TRNSYS users mailing list at OneBuilding.org" <
> TRNSYS-users at 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 at energy.sharif.edu
>
> a <sm_mousavi at pwut.ac.ir>mirrezaheidarysbu at gmail.com
>
> *P* *Save a tree... Please don't print this E-mail unless you really need
> to.*
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>
>
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>
> ---------- Message transféré ----------
> From: David BRADLEY via TRNSYS-users <trnsys-users at lists.onebuilding.org>
> To: "María Regidor Sánchez" <mregsan at gmail.com>, "TRNSYS users mailing
> list at OneBuilding.org" <trnsys-users at 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 listTRNSYS-users at lists.onebuilding.orghttp://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:+1.608.278.1475d.bradley at tess-inc.com
> http://www.tess-inc.comhttp://www.trnsys.com
>
>
>
> ---------- Message transféré ----------
> From: Karim Nahi via TRNSYS-users <trnsys-users at lists.onebuilding.org>
> To: "TRNSYS users mailing list at OneBuilding.org" <
> trnsys-users at 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
>
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>

-- 
Krarouch Mohamed
Doctorant en Département Physique
Laboratoire de Mécanique des Fluides et Énergétique
Faculté des sciences Semlalia
Université Cadi Ayyad
Marrakech
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