[TRNSYS-users] Problem with Dry Fluid Cooler (type 511)

[mcdowell at tess-inc.com]

My apologies, 20C for the design ambient air temperature works.


Regards, 

Tim 

---
Timothy P. McDowell
Executive Vice
President
Thermal Energy System Specialists, LLC
22 N Carroll St, Suite
370
Madison, WI 53703
608-274-2577

On 2013-04-15 02:44,
maxence.bureau at cofely-gdfsuez.com wrote: 

> Hello, 
> 
> Thank you for
your answer Timothy, 
> 
> I try to change the design ambient air
temperature to 26.67, but it isn't run (all other design parameters have
their default value). Maybe I forget something, but I don't know what.

> 
> Regards, 
> 
> MAXENCE BUREAU
> Ingénieur de Recherche
> Qualité
d'Air Intérieur
>
______________________________________________________________________

> 
> CENTRE DE RECHERCHE CYLERGIE
> L'Orée d'Ecully - Bât. C - Chemin
de la Forestière
> 69130 - ECULLY
> tel. +33472860934 - fax
+33478433959
> Mob. +33637613217
>
mailto:maxence.bureau at cofely-gdfsuez.com [3]
> www.cofely-gdfsuez.fr [4]

> 
> Before printing, think about the environment / Avant d'imprimer,
pensez à l'environnement 
> 
> DE : trnsys-users-bounces at cae.wisc.edu
[mailto:trnsys-users-bounces at cae.wisc.edu] DE LA PART DE
mcdowell at tess-inc.com
> ENVOY : jeudi 11 avril 2013 21:36
> : TRNSYS
users mailing list at the Solar Energy Lab, UW-Madison
> OBJET : Re:
[TRNSYS-users] Problem with Dry Fluid Cooler (type 511) 
> 
> Maxence -

> 
> You are correct, there is a problem with the default values in the
Type511 Proforma. If you change the Design Ambient Air Temperature to
26.67 C it should run. 
> 
> Regards, 
> 
> Tim 
> 
> ---
> 
> Timothy
P. McDowell
> 
> Executive Vice President
> 
> Thermal Energy System
Specialists, LLC
> 
> 22 N Carroll St, Suite 370
> 
> Madison, WI
53703
> 
> 608-274-2577
> 
> On 2013-04-10 03:20,
maxence.bureau at cofely-gdfsuez.com [5] wrote: 
> 
>> Hello, 
>> 
>> I
would like to use a type 511 (HVAC Library (TESS) - Dry Fluid Cooler),
but it doesn't work. 
>> 
>> When the value of input 2 (fluid flow rate)
is higher than 0, the simulation doesn't work and an error message
appear ("TRNSYS errors : one error was found in the deck…"). 
>> 
>> I
have this error message in "list file" : 
>> 
>> _"*** Fatal Error at
time : 0.125000_ 
>> 
>> _ Generated by Unit : 10_ 
>> 
>> _ Generated
by Type : 511_ 
>> 
>> _ Message : The dry cooler model was unable to
correctly calculate the number of transfer units (NTU) for the design
condition. Please check the design conditions carefully."_ 
>> 
>> I
tested the type with the defaults design conditions, but it was the same
error message. I think there is a problem with input 2. 
>> 
>> Please
find attached my ".tpf" file. 
>> 
>> Thank you for your help. 
>> 
>>
Sincerely, 
>> 
>> MAXENCE BUREAU
>> Ingénieur de Recherche
>>
______________________________________________________________________

>> 
>> CENTRE DE RECHERCHE CYLERGIE
>> L'Orée d'Ecully - Bât. C -
Chemin de la Forestière
>> 69130 - ECULLY
>> tel. +33472860980 - fax
+33478433959
>> mailto:maxence.bureau at cofely-gdfsuez.com [1]
>>
www.cofely-gdfsuez.fr [2] 
>> 
>> Before printing, think about the
environment / Avant d'imprimer, pensez à l'environnement
> 
> Before
printing, think about the environment / Avant d'imprimer, pensez a
l'environnement 
> 
> GDF SUEZ Mail Disclaimer:
http://www.gdfsuez.com/disclaimer/disclaimer-fr.html



Links:
------
[1] mailto:maxence.bureau at cofely-gdfsuez.com
[2]
http://www.cofely-gdfsuez.fr
[3]
mailto:maxence.bureau at cofely-gdfsuez.com
[4]
http://www.cofely-gdfsuez.fr
[5]
mailto:maxence.bureau at cofely-gdfsuez.com
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