Did you look at the results of your simulation? Or just look at 1 number in the results file and then wonder what happened?
You need to analyze the results to see what is happening. Look at the zone temperatures and zone loads without using the EMS and then again when the EMS is used. Also look at the PTAC report variables to see how the operation has changed. Refer to the edd file to see if the EMS is working as you expect.
Output:Variable,*,Zone/Sys Air Temperature,hourly;
Output:Variable,*,Zone/Sys Air Temperature at Thermostat,hourly;
Output:Variable,*,Zone/Sys Sensible Load Predicted,hourly;
Output:Variable,*,Zone/Sys Sensible Load to Heating Setpoint Predicted,hourly;
Output:Variable,*,Zone/Sys Sensible Load to Cooling Setpoint Predicted,hourly;
Output:Variable,*,Packaged Terminal Air Conditioner Total Zone Heating Rate,hourly;
Output:Variable,*,Packaged Terminal Air Conditioner Total Zone Cooling Rate,hourly;
Output:Variable,*,Packaged Terminal Air Conditioner Sensible Zone Heating Rate,hourly;
Output:Variable,*,Packaged Terminal Air Conditioner Sensible Zone Cooling Rate,hourly;
Output:Variable,*,Packaged Terminal Air Conditioner Latent Zone Heating Rate,hourly;
Output:Variable,*,Packaged Terminal Air Conditioner Latent Zone Cooling Rate,hourly;
Output:Variable,*,Packaged Terminal Air Conditioner Electric Power,hourly;
Output:Variable,*,Packaged Terminal Air Conditioner Fan Part-Load Ratio,hourly;
Output:Variable,*,Packaged Terminal Air Conditioner Part-Load Ratio,hourly;
On 6/9/2011 6:16 PM, yusuf085225 wrote:
I try to model a six floors building with PTAC and EMS. when i use EMS for 1-5 floor, the total site energy is 1535GJ. then i try again EMS for 1-6 floor, the total site energy become 1593GJ. why the total site energy increase? when we use EMS, it should be more in energy efficiency, isn't it?
yusuf priyambodo
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