[TRNSYS-users] Problem with QHEAT

hotline hotline at Transsolar.com
Tue May 15 03:34:59 PDT 2018

Dear Wirich,

unfortunately I couldn't reproduce your problem with the attached files. NTYPE 30 - Qheat as well as Balance-4 varies to reach the set temperatures of 16°C and 22°C.
As weather file I used FR-Nice_76900.tm2. I have also tested it with limited/unlimited and with/without TRNFlow.


-----Ursprüngliche Nachricht-----
Von: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] Im Auftrag von Wirich FREPPEL via TRNSYS-users
Gesendet: Dienstag, 15. Mai 2018 11:34
An: trnsys-users at lists.onebuilding.org
Cc: Wirich FREPPEL <freppelw at noirot.fr>
Betreff: Re: [TRNSYS-users] Problem with QHEAT

Dear TRNSYS users,

I don't find any solution to get the real Qheat. Though in the SUMMARY.BAL file, the total Qheat changes when I change the heating system. So it definitely works.

I attach to this mail some files that could help you find the problem.

Thank you in advance

Best regards

Ingenieur Doctorant en Recherche & Developpement Centre R&D de Noirot - Groupe Muller
8 rue Louis Ampere, 02030 Laon
+33 (0)3 23 27 31 99

Le 15/05/2018 à 09:09, Wirich FREPPEL via TRNSYS-users a écrit :
> Dear TRNSYS users,
> In my TRNSYS project I set a heating system, with 16°C and 22°C as 
> night and day temperature setpoint, and unlimited power. As the 
> output, I chose QHEAT to get the energy needed to reach the setpoint.
> However, for any type of weather file, the result is the same. When I 
> activate TRNFLOW calculations, QHEAT is constant. When I deactivate 
> it, QHEAT is null.
> Do you have any explanation?
> Regards

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