Hello, I've recently started learning how to use COMIS. I have a test case involving a room with a stove inside that produces 50W. How can this be incorporated...
Mike.Deevy@...
Oct 28, 2004 1:32 pm
350
Mike, source schedules are for pollutant source strengths (not energy or temperature), so I don't think they apply here (except if you have a real bad quality ...
Thanks for your help Werner. Could someone tell me why if I use the layer option as an attachment to a zone I get the following error message. ... The H/D/W...
Mike.Deevy@...
Nov 1, 2004 1:22 pm
356
Dear Mike, All "sources" in COMIS refer to sources of indoor air contaminants and gases, e.g. CO2, water vapour. Not sources of heat. COMIS generally can not...
Hello again, in the COMIS 3.0 users guide in the site about windows and doors is it written the next paragraph: "At least one line with opening factor 0.0 and...
... When you specify the window, you can give two or more opening factors, height factors, width factors, etc. for a window. These factors define the behaviour...
Hellow, COMIS users I am working with COMIS-IISiBat version for TRNSYS coupling. I want to ask two questions; 1) When I use only type 157(calling COMIS...
Der YUN 1) In fact, if you really have the same values for all the input parameters, you should get the same results for both, COMIS stand alone and for...
I've a problem with the output-timesteps in comis 3.1. In my model I've put an occupant schedule. In this schedule there are sometimes changes each half hour. ...
The problem I explained before, appears in the next comisexcel-file : http://allserv.ugent.be/~lpwillem/ kind regards, Lieven Willems University Gent...
Dear Lieven Each event of any schedule triggers the calculation of the air flows and the pollutant model and the outputs will be written into the CSO files....
Hello again!!! I have one question about comis 3.0 I hope you could answer me. I have mi simulation in the assembly panel and I run the simulation (VENTILATION...
Hello, Unfortunately, the pollutant module was not completely treated in COMIS 3.0 ; many issues realtive to pollutants have been fixed in COMIS 3.1. In any...
Hello everybody! In the output results of my building I have negative pressures in several zones. I have defined as extern pressure a value of 101 kpa approx....
hey, Just wanted to share some info and see if I could help anyone else lower their mortgage payments, I saved nearly $200 off my monthly payment! Takes two...
In TRNFlow (COMIS) the following formula is used: q=C*(delta p)^n. This factor n is depending on the type of airflow. When the airflow is turbulent the factor...
You shoud refer to measurement data. AIVC Technical Note 44 and AIVC Guide 4 both give typical values for n for different building components, and whole...
Dear all, Is it allowed to define a schedule for a link that is a crack (CR) in COMIS 3.1? According to the guide book, no (schedules are only valid for fans...
Nicolas, we also use schedules on cracks. However our TNO-version of COMIS is a somewhat modified one, so I am not sure that does the trick. Regards, Bas Knoll...
Hi. I'm using COMIS in my MSc work. I'm simulating a room with natural single-sided ventilation. The room has 27m3 and the window is 2m wide and 1,3m tall. The...
Hi Marina, Small room High ach at the same flow rate. 25(ach)*27m3=675 m3/h qv= 0.1875 m3/s The window is large A=2*1.3=2.6 m If the air would use one half...
Phaff, Hans
j.phaff@...
Dec 29, 2004 10:15 am
374
The opening is to the outside. The window has 2,6m2 and it's 1m above ground. At the detailed ventilation output, at the "links" part, it gave me a velocity of...
Oh sorry, v=qv/(A/2)=0.18675/(2.6/2)=0.143654 which is well in range ... J.C. (Hans) Phaff TNO Building and Construction Research Email: J.Phaff@... ...
Phaff, Hans
j.phaff@...
Dec 30, 2004 8:35 am
376
Hi Marina, here a few answers from me maybe others will add. Best regards, hans phaff ... I think it is the velocity reported by the 2VENTilation option of...
Phaff, Hans
j.phaff@...
Dec 30, 2004 10:11 am
377
Hello, I have just started using COMIS 3.1 with IISiBat. I would like to model an exhaust from a room with a constant volume flow rate. Can I do this with a...
Mike.Deevy@...
Jan 11, 2005 2:53 pm
378
Hi Mike, Yes, you can do this. Suggested input [coloured green] is given below, for a fan with constant flow rate of 0.123 [m3/s]. Remember to check that you...
Thanks Peter. That is very useful. Mike ==================================================== Michael Deevy Computational Modelling Section Health and Safety...
Mike.Deevy@...
Jan 11, 2005 4:50 pm
380
I have a question for Peter Schild (if he doesn't mind). Yesterday, you helped me with a problem to do with setting up a constant flow rate exhaust fan. It...
Mike.Deevy@...
Jan 12, 2005 11:05 am
381
Hi Mike, The table i emailed you yesterday had right-aligned numbers, but left-aligned text. The second row of the input I sent you yesterday contained the...
Hi Mr Schild I am a comis beginne, I downloaded the comis excel and wanted to run the example1 but a message appear like "macro aborted" what should I do if I...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
