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...
Dear Jacques, "Macro aborted" means that the Visual Basic macro crashed, and could be due to incompatibility with the version of Microsoft Office on your PC....
Hi Peter! Thanks for answering me I am using microsoft windows XP Home Edition version 2002, comis excel 3.04 or earlier. I followed your instructions, I...
Hi Jacques. You didn't mention which version of Microsoft Office you are running. Are you running the version of Excel that comes with Microsoft Works?.. Works...
Hello everyone, I am a beginner in COMIS, and now I want to make a model of a building with 7 floors which will be used to simulate the stack effect of it. The...
Subject line: Job Opportunity - Research Officer in Ventilation / Indoor Air Quality The Institute for Research in Construction, Canada's leading centre for...
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Dear all I'm a beginner with Comis and I have several doubts: - Comis use the correction factor (CF - from Dascalaki et al) only for single-side, is that...
Hi Manuel * The crack flow correction factor is implemented in COMIS subroutine CRTEMPC, in file COMV-CRA.FOR. It is as described in in AIVC Technical Note 29,...
Hi Raja, Your university is responsible for making the necessary user manuals available to you. There is a different manual for each library. The manuals for...
Hi Raja, Actually TRNSYS 16 now has electronic manuals. So, if you have that version, you can access the entire set through the Simulation Studio help menu. If...
Does anyone have a copy of, or a url link to, the User's Manual for CPCALC+? I'm trying to do an exercise of comparing several different ways to make natural...
as an alternative for your Cp calculations you may use the TNO 'Cp Generator' program. The web version of this program is now available for free to beta...
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