[TRNSYS-users] NTYPE 27 QUA and (1/ai=0.13(w/m^2K)^-1, 1/ao=0.04(w/m^2K)^-1)

[王洋]

 Dear all,

I have some questions:

To the transfer function calculation of TRNSYS in Manual Chap. 5-148: I mean
User can define the Convective heat transfer coefficient of wall Front,
Back(64, 11kJ/hm^2K) in Wall Manager TRNBUILD, here 1/ai=0.13(w/m^2K)^-1,
1/ao=0.04(w/m^2K)^-1 repeat once again. Are they 1/ai=0.13(w/m^2K)^-1,
1/ao=0.04(w/m^2K)-1
INTERNAL CALCULATION value in Wall Manager TRNBUILD?

I found the NTYPE 27 QUA: In my simulation it also is 1123 kJ/h as a
constant, but the QHEAT (from 0 to 400 kJ/h)<<QUA=1123 kJ/h. Why  is it?
What's difference QHEAT and QUA? Please explain in detail.

Many thanks!

wang


2011/4/12 <trnsys-users-request at cae.wisc.edu>

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>   1. Re: How to get kWh/m?a (Kersken, Matthias)
>   2. shm file after TRNBuild change (Pauline GELIN)
>
>
> ---------- 已转发邮件 ----------
> From: "Kersken, Matthias" <Matthias.Kersken at ibp.fraunhofer.de>
> To: "Leo Häberlein" <leohaeberlein at googlemail.com>, <
> trnsys-users at cae.wisc.edu>
> Date: Mon, 11 Apr 2011 17:31:19 +0200
> Subject: Re: [TRNSYS-users] How to get kWh/m²a
>  Hi Leo!
>
> Sum Up Your (hourly) output.
> If Your output is not hourly divide this sum by the number of timesteps per
> hour.
> Divide this sum by Your floor area and by 3,6 kJ/h*W
>
> With kind regards,
>     Matthias Kersken
>
> ---
>
>
>
> *Dipl.-Ing. Matthias Kersken
> *Wissenschaftlicher Mitarbeiter / Abteilung Energiesysteme
>
> Fraunhofer-Institut für Bauphysik
> Institutsteil Holzkirchen
>
> Fraunhoferstraße 10
> 83626 Valley
>
> eMail: Matthias.Kersken at ibp.fraunhofer.de
> Telefon 08024 / 643-204
> Telefax 08024 / 643-366
> www.ibp.fraunhofer.de
>
>    *Dipl.-Ing. Matthias Kersken
> *Research Associate / Department Energy Systems
>
> Fraunhofer Institute for Building Physics
> Branch Holzkirchen
>
> Fraunhoferstraße 10
> D-83626 Valley
>
> eMail: Matthias.Kersken at ibp.fraunhofer.de
> Phone +49 8024 / 643-204
> Fax +49 8024 / 643-366
> www.ibp.fraunhofer.de
>
>
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> ---
>
>
>  ------------------------------
> *Von:* Leo Häberlein [mailto:leohaeberlein at googlemail.com]
> *Gesendet:* Freitag, 8. April 2011 14:46
> *An:* trnsys-users at cae.wisc.edu
> *Betreff:* [TRNSYS-users] How to get kWh/m²a
>
> Hi Trnsys-Users,
>
> I know it might be an easy question, but i am pretty much a "rookie" when
> it comes to trnsys.
> I just wanted to ask, if and how i can get the kWh/m²a output for my
> building in an excel sheet or editor file??
> Thanks
>
> Leo
>
>
>
> ---------- 已转发邮件 ----------
> From: Pauline GELIN <p.gelin at katene.fr>
> To: "trnsys-users at cae.wisc.edu" <trnsys-users at cae.wisc.edu>
> Date: Tue, 12 Apr 2011 15:31:37 +0200
> Subject: [TRNSYS-users] shm file after TRNBuild change
>
> Dear all,
>
>
>
> After drawing my building and its shading objects with the TRNSYS3D plugin
> in Sketchup, I wanted to modify it in TRNBuild (for example to add a window,
> so I changed the geometry mode on manual).
>
> after doing this, I could not generate a shm file (shading matrix). I
> guess it is because links for calculations were cut by manual mode.
>
> I would like to know, for my next projects, if I can generate this file
> before the modifications, and then switch to manual mode.
>
> Will the shading datas be correct?
>
> Are they calculated  based on the location of walls or real windows ones ?
>
>
>
> Thank you very much in advance for your help.
>
>
>
> Pauline Gelin,
>
> Katene engineer, fluid design office.
>
>
>
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