[TRNSYS-users] Type157 w/schedules

Wed Nov 28 08:43:51 PST 2007

Dear Werner

Thank you very much for your kind help.
I tried to use type-14h, but there were some gaps at time.

So, I used type-9a.
In this schedule, I set the opening factors; 0 to 1 each time step.

If opening factor was 0, out put data of zone-ventilation-supply (ach/hr) was 0.
So, I think that opening and closing windows schedules seem to work correctly.

But, if opening factor was not 0, out put data of zone-ventilation-supply were too much.
And they were not changed acording to the time step.
For example, zone-ventilation-supply (ach/hr) were 250 to 765 ach/hr.

I may misunderstand the way of setting the schedules.
If you have an experience like above-mentioned,
please give me some advices.

Sincerely.

----- Original Message ----- 
From: "keilholz, werner" <werner.keilholz at cstb.fr>
To: "AKAMINE Yoshihiko" <akamine at arch.t.u-tokyo.ac.jp>; <trnsys-users at engr.wisc.edu>
Sent: Tuesday, November 27, 2007 10:36 PM
Subject: RE : [TRNSYS-users] Type157 w/schedules

Dear Yoshihiko,

When you are coupling an existing COMIS project with a TRNSYS project, only the TRNSYS time loop is executed when the simulation is 
run from the TRNSYS project. Therefore, schedules defined in COMIS will not be executed. (They are only executed when you run the 
COMIS project using 'Edit Air Flow network' when right-clicking on type 157).

If you wish to open and close windows in the air flow network (or change fan speeds, etc.), you have to use and additional input to 
type 157. These additional inputs already exist in your project : they are called
'Actual Factor for links with schedules-N'
(where N is the number of the link in the COMIS air flow network definition).

So now you only have to connect these inputs to a schedule defined in TRNSYS (not in COMIS). For example, you can use a forcing 
function (Utilities/Forcing Function/General/Type14h) to define the schedule. Then connect the output of type 14 to the input of 
type 157.

The meaning of the value depends of the component used in the COMIS airflow network for link N : an opening factor (0..1) for 
windows, a fan speed for fans, etc. (see COMIS User Guide in
.\Trnsys16\Studio\Lib\comis-demo\Documentation

or if you have COMIS in
\comis32\Documentation

Hope this helps,

Werner

________________________________

De: AKAMINE Yoshihiko [mailto:akamine at arch.t.u-tokyo.ac.jp]
Date: lun. 26/11/2007 21:41
À: trnsys-users at engr.wisc.edu
Objet : [TRNSYS-users] Type157 w/schedules

Dear TRNSYS Users,

I'm trying to simulate about cross-ventilated building
with TRNSYS 16.01.0003 and COMIS 3.2.

I would like you to teach me how to set the opening and shutting schedule of windows
in the Coupled Project (TRNSYS-COMIS).

In the COMIS stand alone, the schedule work normally.
However, it does not work in the Coupled Project, windows are always opened...

----
Dr. Eng., Yoshihiko Akamine, Proj. Assist. Prof.
Grad. School of Eng., The Univ. of Tokyo
Hongo 8-3-1, Bunkyo-ku, Tokyo 113-8656 JAPAN
Phone/Fax +81-3-5841-6208
E-mail: akamine at arch.t.u-tokyo.ac.jp

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