Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
One possible solution would be to use the EMS manager to set the Outdoor Air System Node conditions at every timestep to the assumed 'tempered air' conditions.
Page 23 of The Book of Erl (EnergyPlus Application Guide for EMS) details this EMS actuator and actually suggests to 'make use of a separate model, outside of EnergyPlus, for some unique type of component (such as a labyrinth or earth-tube) that preconditions outdoor air; the results of that model could be fed into the air system model in EnergyPlus using these actuators.'
I'm not particularly savvy with EMS myself, but you may be able to calculate the assumed tempered air conditions, at each timestep, from the actual model using EMS sensors and some custom EMS logic. Alternatively, you could do some pre-processing as suggested above and feed it a custom Schedule:File.
| | 2 | No.2 Revision |
One possible solution would be to use the EMS manager to set the Outdoor Air System Node conditions at every timestep to the assumed 'tempered air' conditions.
Page 23 of The Book of Erl Erl (EnergyPlus Application Guide for EMS) details this EMS actuator and actually suggests to 'make use of a separate model, outside of EnergyPlus, for some unique type of component (such as a labyrinth or earth-tube) that preconditions outdoor air; the results of that model could be fed into the air system model in EnergyPlus using these actuators.' actuators.'
I'm not particularly savvy with EMS myself, but you may be able to calculate the assumed tempered air conditions, at each timestep, from the actual model using EMS sensors and some custom EMS logic. Alternatively, you could do some pre-processing as suggested above and feed it a custom Schedule:File.
| | 3 | No.3 Revision |
One possible solution would be to use the EMS manager to set the Outdoor Air System Node conditions at every timestep to the assumed 'tempered air' conditions.
Page 23 of The Book of Erl (EnergyPlus Application Guide for EMS) details this EMS actuator and actually suggests to 'make use of a separate model, outside of EnergyPlus, for some unique type of component (such as a labyrinth or earth-tube) that preconditions outdoor air; the results of that model could be fed into the air system model in EnergyPlus using these actuators.'
I'm not particularly savvy with EMS myself, but you may be able to calculate the assumed tempered air conditions, at each timestep, from the actual model using EMS sensors and some custom EMS logic. Alternatively, you could do some pre-processing as suggested above and feed it a custom Schedule:File. schedule.
| | 4 | No.4 Revision |
One possible solution would be to use the EMS manager to set the Outdoor Air System Node conditions at every timestep to the assumed 'tempered air' conditions.
Page 23 of The Book of Erl Erl (EnergyPlus Application Guide for EMS) details this EMS actuator and actually suggests to 'make use of a separate model, outside of EnergyPlus, for some unique type of component (such as a labyrinth or earth-tube) that preconditions outdoor air; the results of that model could be fed into the air system model in EnergyPlus using these actuators.'
I'm not particularly savvy with EMS myself, but you may be able to calculate the assumed tempered air conditions, at each timestep, from the actual model using EMS sensors and some custom EMS logic. Alternatively, you could do some pre-processing as suggested above and feed it a custom schedule.
