Re: [EnergyPlus_Support] Window operation by wind direction

[Richard Raustad <RRaustad@xxxxxxxxxxxx>]

You will have to set up schedules based on the weather file data. You 
will also need to use AirFlowNetwork objects. You also need at least 2 
windows open for air to move through the zone.

See the documentation for SCHEDULE:FILE:COMMA. This schedule type points 
to a file with 8760 hours of data. You must use the weather converter 
program to convert the weather file to csv format. Then open the weather 
csv file in a spreadsheet and set up IF statements to calculate your 
schedules.

For example:

If you had 4 windows facing different directions, you would need 4 
schedules.

In the weather file (csv format), data in column R = WindDir, column 
S=WindSpeed

Formula In column AF20: IF(R20> 0, IF(R20<=90,1,0),0)
Formula In column AG20: IF(R20> 90, IF(R20<=180,1,0),0)
Formula In column AH20: IF(R20> 180, IF(R20<=270,1,0),0)
Formula In column AI20: IF(R20> 270, IF(R20<=360,1,0),0)

Make your formula's do whatever you like.

Then save the file in csv format. Change the name to something simple, 
like WindowSchedules.csv

Look at the example file 5ZoneTDV for an example use of Schedule:File:Comma.

Yours will look something like this:

  SCHEDULE:FILE:COMMA,
    NorthWindowSchedule,      !- Name
    Any Number,              !- ScheduleType
    DataSets\WindowSchedules.csv,  !- Name of File
    32,                       !- Column Number
    20;                       !- Rows to Skip at Top

  SCHEDULE:FILE:COMMA,
    EastWindowSchedule,      !- Name
    Any Number,              !- ScheduleType
    DataSets\WindowSchedules.csv,  !- Name of File
    33,                       !- Column Number
    20;                       !- Rows to Skip at Top

  SCHEDULE:FILE:COMMA,
    SouthWindowSchedule,      !- Name
    Any Number,              !- ScheduleType
    DataSets\WindowSchedules.csv,  !- Name of File
    34,                       !- Column Number
    20;                       !- Rows to Skip at Top

  SCHEDULE:FILE:COMMA,
    WestWindowSchedule,      !- Name
    Any Number,              !- ScheduleType
    DataSets\WindowSchedules.csv,  !- Name of File
    35,                       !- Column Number
    20;                       !- Rows to Skip at Top


>     ----- Original Message -----
>     *From:* Sherif Ezzeldin <mailto:shezzeldin@xxxxxxxxx>
>     *To:* EnergyPlus_Support@xxxxxxxxxxxxxxx
>     <mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx>
>     *Sent:* Friday, July 18, 2008 10:59 AM
>     *Subject:* [EnergyPlus_Support] Window operation by wind direction
>
>     Hi,
>
>      
>
>     I'm trying to model a single zone space with two wind stacks
>
>     These stacks contains 4 windows for 4-directions
>
>     Using E+, is there an opportunity where I can control the
>     operation of those openings according to wind speed, direction or
>     airflow? in otherword, is there a way to maintain one stack as a
>     wind-scoop (by opening windward windows and closing the others)
>     and the other as a wind-chimney (by opening leeward windows and
>     closing the others) with all the variation in wind direction
>     during the simulation period?
>
>     Could you please help?
>
>      
>
>     Kind regards,
>
>     Sherif
>
>
>  

-- 
Richard A. Raustad
Senior Research Engineer
Florida Solar Energy Center
University of Central Florida
1679 Clearlake Road
Cocoa, FL  32922-5703
Phone:   (321) 638-1454
Fax:     (321) 638-1439 or 1010
Visit our web site at: http://www.fsec.ucf.edu

UCF - From Promise to Prominence: Celebrating 40 Years


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