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Re: [EnergyPlus_Support] setting item of an idf file

Thank you for your reply.

I will try the EMS.

Koji Takemasa (Ph. D.)


This is easy to do with EMS.  Make the temperature a sensor, make the air exchange an actuator, write a short program to calculate the exchange rate.  I just did this for a simulation I am working on and found that I had to calculate at the end of a time step rather than the beginning.  For some reason a calculation at the beginning of the time step was not implemented for air exchange until the next step anyway.  Now you will also have to consider your time step impact on the simulation.


Ned Lyon, P.E. (MA, WV)
Staff Consultant

781.907.9000 main
781.907.9350 direct 
781.907.9009 fax


From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@yahoogroups.com] On Behalf Of koji_takemasa
Sent: Wednesday, March 20, 2013 9:42 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] setting item of an idf file




I want to increase an air change rate, when outside air temperature is Centigrade 18 and in between Centigrade 27.

I would like to know the setting item of an idf file.

Koji Takemasa


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