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I guys, I have used E+ to obtain the output variable Zone Predicted Sensible Load to Setpoint Heat Transfer Rate for both a system connected to a modified VAV with reheat system (with absorption chiller and district heating instead of electric chiller and boiler) and the same system with the "ideal loads" turned on. The system is a simple room, so only 1 thermal zone is modeled. The two percentual difference between the two values varies very much: from a simple 1-2% to 500% or more. My question is, since the room is the same (same geometry, fenestration, thermostats, internal loads, weather file and so on) shouldn't the results be very similar? Why there is this huge variability among the two results?

Thanks Federico

I guys, I have used E+ to obtain the output variable Zone Predicted Sensible Load to Setpoint Heat Transfer Rate for both a system connected to a modified VAV with reheat system (with absorption chiller and district heating instead of electric chiller and boiler) and the same system with the "ideal loads" turned on. The system is a simple room, so only 1 thermal zone is modeled. The two percentual difference between the two values varies very much: from a simple 1-2% to 500% or more. My question is, since the room is the same (same geometry, fenestration, thermostats, internal loads, weather file and so on) shouldn't the results be very similar? Why there is this huge variability among the two results?

Thanks Federico

I Hi guys, I have used E+ to obtain the output variable Zone Predicted Sensible Load to Setpoint Heat Transfer Rate for both a system connected to a modified VAV with reheat system (with absorption chiller and district heating instead of electric chiller and boiler) and the same system with the "ideal loads" turned on. The system is a simple room, so only 1 thermal zone is modeled. The percentual difference between the two values varies very much: from a simple 1-2% to 500% or more. My question is, since the room is the same (same geometry, fenestration, thermostats, internal loads, weather file and so on) shouldn't the results be very similar? Why there is this huge variability among the two results?

Thanks Federico

Hi guys, I have used E+ to obtain the output variable Zone Predicted Sensible Load to Setpoint Heat Transfer Rate for both a system connected to a modified VAV with reheat system (with absorption chiller and district heating instead of electric chiller and boiler) and the same system with the "ideal loads" turned on. The system is a simple room, so only 1 thermal zone is modeled. The percentual difference between the two values varies very much: from a simple 1-2% to 500% or more. My question is, since the room is the same (same geometry, fenestration, thermostats, internal loads, weather file and so on) shouldn't the results be very similar? Why there is this huge variability among the two results?

Thanks Federico

Hi guys, I have used E+ to obtain the output variable Zone Predicted Sensible Load to Setpoint Heat Transfer Rate for both a system connected to a modified VAV with reheat system (with absorption chiller and district heating instead of electric chiller and boiler) and the same system with the "ideal loads" turned on. The system is a simple room, so only 1 thermal zone is modeled. The percentual difference between the two values varies very much: from a simple 1-2% to 500% or more. My question is, since the room is the same (same geometry, fenestration, thermostats, internal loads, weather file and so on) shouldn't the results be very similar? Why there is this huge variability among the two results?

Thanks Federico

edit: I post the pic required

Hi guys, I have used E+ to obtain the output variable Zone Predicted Sensible Load to Setpoint Heat Transfer Rate for both a system connected to a modified VAV with reheat system (with absorption chiller and district heating instead of electric chiller and boiler) and the same system with the "ideal loads" turned on. The system is a simple room, so only 1 thermal zone is modeled. The percentual difference between the two values varies very much: from a simple 1-2% to 500% or more. My question is, since the room is the same (same geometry, fenestration, thermostats, internal loads, weather file and so on) shouldn't the results be very similar? Why there is this huge variability among the two results?

Thanks Federico

edit: I post the pic required

edit: here is the second graph graph (Revised version)

Hi guys, I have used E+ to obtain the output variable Zone Predicted Sensible Load to Setpoint Heat Transfer Rate for both a system connected to a modified VAV with reheat system (with absorption chiller and district heating instead of electric chiller and boiler) and the same system with the "ideal loads" turned on. The system is a simple room, so only 1 thermal zone is modeled. The percentual difference between the two values varies very much: from a simple 1-2% to 500% or more. My question is, since the room is the same (same geometry, fenestration, thermostats, internal loads, weather file and so on) shouldn't the results be very similar? Why there is this huge variability among the two results?

Thanks Federico

edit: I post the pic required

edit: here is the second graph (Revised version)

Hi guys, I have used E+ to obtain the output variable Zone Predicted Sensible Load to Setpoint Heat Transfer Rate for both a system connected to a modified VAV with reheat system (with absorption chiller and district heating instead of electric chiller and boiler) and the same system with the "ideal loads" turned on. The system is a simple room, so only 1 thermal zone is modeled. The percentual difference between the two values varies very much: from a simple 1-2% to 500% or more. My question is, since the room is the same (same geometry, fenestration, thermostats, internal loads, weather file and so on) shouldn't the results be very similar? Why there is this huge variability among the two results?

Thanks Federico

edit: I post the pic required

edit: here is the second graph (Revised version)

edit: I have added the plots for sim from 1-2-16 to 7-2-16, both thermostats set at 21 °C