[TRNSYS-users] TRNSYS-users Digest, Vol 201, Issue 24

Wed Sep 29 04:07:09 PDT 2021

Hi
Does anyone have an idea about the component of  solar Air -PVT collector
because right now in my knowledge the TRNSYS have only a PVT for the  hot
water system ?
please Help

Le mer. 29 sept. 2021 à 12:02, <trnsys-users-request at lists.onebuilding.org>
a écrit :

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>    1. Re: heating load - 1 mn time step (Alain GUIAVARCH)
>    2. Information request (Badr OUHAMMOU)
>
>
>
> ---------- Forwarded message ----------
> From: Alain GUIAVARCH <a.guiavarch at groupeginger.com>
> To: "TRNSYS users mailing list at OneBuilding.org" <
> trnsys-users at lists.onebuilding.org>
> Cc:
> Bcc:
> Date: Wed, 29 Sep 2021 08:53:46 +0000
> Subject: Re: [TRNSYS-users] heating load - 1 mn time step
>
> Ok, according to the manual I understand it is related to the timebase and
> the transfer functions.
>
>
>
> Best regards,
>
>
>
> *De :* TRNSYS-users <trnsys-users-bounces at lists.onebuilding.org> *De la
> part de* Alain GUIAVARCH via TRNSYS-users
> *Envoyé :* mardi 28 septembre 2021 17:13
> *À :* TRNSYS users mailing list at OneBuilding.org <
> trnsys-users at lists.onebuilding.org>
> *Cc :* Alain GUIAVARCH <a.guiavarch at groupeginger.com>
> *Objet :* Re: [TRNSYS-users] heating load - 1 mn time step
>
>
>
> Dear Angel,
>
>
>
> Thank you for your help.
>
> Actually I’m not talking about the moment when the set point changes from
> 17°C from 20° (I agree with you this is normal).
>
> But when we look at what happens each hour of the day, the heat load
> suddenly changes every hour, even if the set point temperature doesn’t
> change, this is what I don’t understand : the heat load curve looks like a
> « staircase ». It is the same for the temperature,  so I think it doesn’t
> come from the heating power control.
>
>
>
> *De :* TRNSYS-users <trnsys-users-bounces at lists.onebuilding.org> *De la
> part de* Angel Carrera via TRNSYS-users
> *Envoyé :* mardi 28 septembre 2021 11:59
> *À :* TRNSYS users mailing list at OneBuilding.org <
> trnsys-users at lists.onebuilding.org>
> *Cc :* Angel Carrera <angel.carrera at aiguasol.coop>
> *Objet :* Re: [TRNSYS-users] heating load - 1 mn time step
>
>
>
>
>
> Hi Alain,
>
>
>
> I guess that you are calculating the heating load with unlimited heating
> power. If that's the case, you are requesting to type 56 that the building
> reach the setpoint  temperature in 1 minute (that might be lot of energy
> for such a small amount of time) and the sudden peaks in the heating load
> appear at times where you have a change in the setpoint temperature. I will
> suggest that you use a limited power for your heating device, or increase
> your time step to a time that you find reasonable to heat your building. In
> general, smaller time steps are "better", but if you are just interested in
> calculating your heating load that's not necessarily true, specially if you
> are interested in calculating peak power. Hope it helps, best regards
>
>
>
> Angel
>
>
>
> El mar, 28 sept 2021 a las 10:44, Alain GUIAVARCH via TRNSYS-users (<
> trnsys-users at lists.onebuilding.org>) escribió:
>
> Hi everybody,
>
>
>
> I’m simulating a projet with type 56, and 1 mn time step.
>
> I don’t understand the heating load : it varies too much each hour, like
> something is not interpolated (green curve in the attached file ).
>
> Would anybody have any idea, did I forget something ?
>
>
>
> Best,
>
>
>
> Alain Guiavarch
>
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>
>
> --
>
>
>
> Àngel Carrera Martín
>
> Consultor sènior en Sistemes
>
> Llicenciat en ciencies físiques
>
> Sistemes Avançats d'Energia Solar Tèrmica - AIGUASOL
>
>            +(00) 34 663 276 680   Roger de Llúria 29, 3r 2a
>
> angel.carrera at aiguasol.coop   08009 Barcelona
>
>               angel_aiguasol   Tel: (+34) 933 424 755
>
>                               www.aiguasol.coop
>
>
>
> ---------- Forwarded message ----------
> From: Badr OUHAMMOU <badr.ouhammou at uit.ac.ma>
> To: trnsys-users at lists.onebuilding.org
> Cc:
> Bcc:
> Date: Wed, 29 Sep 2021 11:59:13 +0100
> Subject: [TRNSYS-users] Information request
> does Trnsys has a component for  solar PVT air collector ?
>
> --
>
>
> *Badr Ouhammou*
>
> *Renewable Energy and Environment Laboratory*
>
>
> *Ibn Tofail University*
>
>
> *Faculty of Sciences*
>
> *BP. 133, 14 000 Kenitra-Morocco*
>
> *baouhammou at yahoo.com <baouhammou at yahoo.com>*
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-- 

*Badr Ouhammou*

*Renewable Energy and Environment Laboratory*

*Ibn Tofail University*

*Faculty of Sciences*

*BP. 133, 14 000 Kenitra-Morocco*

*baouhammou at yahoo.com <baouhammou at yahoo.com>*
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