There is no problem with your IDF, except that you do not have DesignDay sizing.
The air infiltration rates to the zones were very high, 0.5 to 3.5 ACH. You can add the followings to display them. ============================ Output:Variable,*,Zone Mean Air Temperature,Timestep; Output:Variable,*,Outdoor dry bulb,Timestep; Output:Variable,*,Schedule Value,Timestep; Output:Variable,*,Zone Infiltration Air Change Rate,Timestep; ============================== Output:Table:TimeBins, *, !- Key Value Zone Mean Air Temperature, !- Variable Name , !- Interval Start , !- Interval Size 20, !- Interval Count , !- Schedule Name Temperature; !- Variable Type ============================ I do not know what this is for and was not simulated. Dr. Li To: EnergyPlus_Support@xxxxxxxxxxxxxxx From: mohammadkheradmand@xxxxxxxxx Date: Tue, 13 Mar 2012 10:31:59 -0700 Subject: [EnergyPlus_Support] define schedule compact for infiltration to reach convergence results Hello, Could you please explain to me this point in schedule compact: Field: Value Finally, the value field is the schedule value for the specified time interval. what is meaningful of it? and is it true that i did in .idf file till now? regards, From: saleh saadi <salehsnjsaadi404@xxxxxxxxx> To: "EnergyPlus_Support@xxxxxxxxxxxxxxx" <EnergyPlus_Support@xxxxxxxxxxxxxxx> Sent: Thursday, March 8, 2012 7:33 PM Subject: Re: [EnergyPlus_Support] what can i do for convergence the result ? Does the simulation underestimate or overestimate your experimental results?
You might need to consider the infiltration in your model. try to use simple convective heat transfer coefficient algorithm. Use real weather data measured at site. what is the uncertainty in your measurements equipment. ? your results need to be within 1 deg difference. (3-4) degree difference is large. regards, From: Mohammad Kheradmand <mohammadkheradmand@xxxxxxxxx> To: "EnergyPlus_Support@xxxxxxxxxxxxxxx" <EnergyPlus_Support@xxxxxxxxxxxxxxx> Sent: Thursday, March 8, 2012 11:06 AM Subject: [EnergyPlus_Support] what can i do for convergence the result ? I simulate my model for coldest and hottest a day of August, for comparing results between experimental and simulation results, i got reasonable result for hottest day(almost 4-5 degree differences ), but for coldest day i have difference almost 10-12 degree ...what is my problem? regards
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