[TRNSYS-users] Incident solar radiation on greenhouse ground

[Mario González]

Dear Christoph,

Thanks for the reply, I tried with that output (QSIAB), and also I tried
the QIBAB and QIDAB for the same surface (the ground floor), but I get the
same value on QIDAB as in QSIAB, meaning that all the incident radiation is
diffuse. Am I right? Is there a need to adjust some parameter? I saw
something about GEOSURF parameter, but I do not have it clear how to
justifiy what number to put there.

The multiplication of the Global Radiation by the Transmisivity of the
cover it was just a simplification that crossed my mind, but if one output
give me a better result, I will not follow that methodology.

Best,
Mario

2018-04-24 8:03 GMT-05:00 <trnsys-users-request at lists.onebuilding.org>:

>
>
> ---------- Mensaje reenviado ----------
> From: hotline <hotline at transsolar.com>
> To: "TRNSYS users mailing list at OneBuilding.org" <
> trnsys-users at lists.onebuilding.org>
> Cc:
> Bcc:
> Date: Tue, 24 Apr 2018 11:44:31 +0000
> Subject: Re: [TRNSYS-users] Incident solar radiation on greenhouse ground
>
> Dear Mario,
>
>
>
> surface output 79 (QSIAB: solar (direct+diffuse) radiation being absorbed
> at inside surface) is the one you are looking for.
>
> What do you want to achieve exactly by multipling the Global Radiation by
> the Transmisivity of the cover?
>
>
>
> Best,
>
> Christoph
>
>
>
> *Von:* TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] *Im
> Auftrag von *Mario González via TRNSYS-users
> *Gesendet:* Dienstag, 24. April 2018 00:36
> *An:* trnsys-users at lists.onebuilding.org
> *Cc:* Mario González <marioglezx at gmail.com>
> *Betreff:* [TRNSYS-users] Incident solar radiation on greenhouse ground
>
>
>
> Dear TRNSYS users,
>
>
>
> I am working on a greenhouse simulation using TRNSYS 17, and I want to
> know the Incident Radiation on the ground surface.
>
>
>
> Is there an output from TRNBuild that gives me this data? I've seen the
> outputs (or NTYPEs) 12 (QSOLTR), 14 and 15 (QTABS), and the  surface output
> 79 (QSIAB), but I am not so sure which of these is the correct one.
>
>
>
> Also I was thinking to just multiply the Global Radiation by the
> Transmisivity of the cover (simplifying a lot).
>
>
>
> Thanks in advance,
>
> Mario
>
>
>
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