Re: [EnergyPlus_Support] venting schedule

["Michael J. Witte" <mjwitte@xxxxxxxx>]

In your input file, when you have specified a Venting Schedule in COMIS Surface 
Data, you have left the Ventilation Control Mode blank.  In version 1.1.1, this 
defaults to NOVENT (as noted in the IDD but not in the I/O Reference), so it is 
ignoring your ventilation schedule and forcing the surface to always be closed. 
 If you enter CONSTANT for Ventilation Control Mode on these surfaces, then the 
opening will respond to your schedule.

Mike


On 6 Mar 2004, at 15:22, Mohit Mehta wrote:

> 
> hi:
> 
> in COMIS Zone Data, if i set the ventialtion control mode to CONSTANT (windows
> open at all times independent of conditions, which is what i want) CAN i then
> modulate these openings on a time of day schedule? for example by using the
> Venting Schedule.
> 
> now there are 2 places where i can specify this Venting Schedule - Zone Data and
> Surface Data. also in Surface Data it is mandatory to input Window Openness
> Factor for each opening. once i enter this factor then it disregards any venting
> schedule that i may enter in any of the above 2 places mentioned - the opening
> areas are modulated accordning to the openness factor for ALL hours. 
> 
> example case - control mode CONSTANT, openness factor set to, say 0.5 (half
> open), and a venting schedule (either 1.0 or 0.5) specified too (in Surface
> Data). result - Window/Door Venting Opening Factor = 0.00 (opening closed all
> all hours)... shouldn't it be 0.5*1.0 or 0.5 depending on time of day venting
> schedule??? 
> 
> basically what is happening is if venting schedule is specified at Zone level
> then it is overridden (ignored) by openness factor and if it is entered in
> Surface Data level - it results in zero. 
> 
> please can anyone explain what i am doing incorrectly or if i am missing
> something. thank you.
> 
> ~mohit
> 
> 
> 
> 
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========================================================
Michael J. Witte, GARD Analytics, Inc.
EnergyPlus Testing and Support      
EnergyPlus-Support@xxxxxxxx



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