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In general, any Output:Variable and Output:Meter objects available to use depend upon what objects are in your E+ model. If you check the .rdd file after a simulation, you'll see the current list of available VARIABLES that can be reported in the *.csv file ( "" is the same name as your IDF file, and all output files are all generated in the same directory as your IDF file). Likewise, you can check the *.mdd file after a simulation, you'll see the current list of available METERS that can be reported in the *.mtr file. There are generally more options for variables than meters. The best doc to explain all of the meter and variable options is the Input Output Reference. Each object has separate sections explaining the input fields as well as the outputs.

The Zone Air System Sensible Heating Rate output variable you mention is the energy actually supplied by the system to a zone. Ideally this is equal or close to the heat energy the zone demands, but maybe the HVAC system is CAV or has other operational settings that make it difficult to supply varied amounts of heating energy to exactly match heating demand.

You have two options to report heating demand in zones:

  • Check the zone sizing CSV output file, which is generated whenever you have a Sizing:Zone object in your E+ model. For each zone, this CSV output file contains four columns: heating design load and heating design flow rate during heating design day, and cooling design load and cooling design flow during cooling design day. Values are reported hourly. The file is named *Zsz.csv and will contain one day of data.
  • The two output variables you seem to be interested in are Zone Predicted Sensible Load to Heating Setpoint Heat Transfer Rate (output variable from the ZoneControl:Thermostat object) for zone-level heating demand and Plant Supply Side Heating Demand Rate (output variable from the PlantLoop object) for plant-level heating demand. Again, these variables will be added to the *.csv file, which contains data for the length of your simulation. You can have these output at whatever time interval you desire (hourly, simulation timestep, daily, etc.).

I hope this helps!

In general, any Output:Variable and Output:Meter objects available to use depend upon what objects are in your E+ model. If you check the .rdd X.rdd file after a simulation, you'll see the current list of available VARIABLES that can be reported in the *.csv X.csv file ( "" "X" is the same name as your IDF file, and all output files are all generated in the same directory as your IDF file). Likewise, you can check the *.mdd X.mdd file after a simulation, you'll see the current list of available METERS that can be reported in the *.mtr X.mtr file. There are generally more options for variables than meters. The best doc to explain all of the meter and variable options is the Input Output Reference. Each object has separate sections explaining the input fields as well as the outputs.

The Zone Air System Sensible Heating Rate output variable you mention is the energy actually supplied by the system to a zone. Ideally this is equal or close to the heat energy the zone demands, but maybe the HVAC system is CAV or has other operational settings that make it difficult to supply varied amounts of heating energy to exactly match heating demand.

You have two options to report heating demand in zones:

  • Check the zone sizing CSV output file, which is generated whenever you have a Sizing:Zone object in your E+ model. For each zone, this CSV output file contains four columns: heating design load and heating design flow rate during heating design day, and cooling design load and cooling design flow during cooling design day. Values are reported hourly. The file is named *Zsz.csv XZsz.csv and will contain one day of data.
  • The two output variables you seem to be interested in are Zone Predicted Sensible Load to Heating Setpoint Heat Transfer Rate (output variable from the ZoneControl:Thermostat object) for zone-level heating demand and Plant Supply Side Heating Demand Rate (output variable from the PlantLoop object) for plant-level heating demand. Again, these variables will be added to the *.csv X.csv file, which contains data for the length of your simulation. You can have these output at whatever time interval you desire (hourly, simulation timestep, daily, etc.).

I hope this helps!