Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
I'm not sure what you mean by associated pipe runs but I believe the system that you're describing is supported by EnergyPlus/OpenStudio. However, there is not an explicit "3-way valve" option in EnergyPlys like there is in eQUEST. Personally, I think this is a good thing because it requires the modeler to think about the operation of the system a bit more...
As a crude first guess you could set the minimum flow rates on the pump and loop to be equivalent to the rated flow rate of the three-way valve(s). If this is an existing building, trend data will be necessary to figure out what that minimum flow setting should really be. In reality it's probably higher than the rated flow rate of the three-way valve(s).
| | 2 | No.2 Revision |
I'm not sure what you mean by associated pipe runs but I believe the system that you're describing is supported by EnergyPlus/OpenStudio. However, there is not an explicit "3-way valve" option in EnergyPlys like there is in eQUEST. Personally, I think this is a good thing because it requires the modeler to think about the operation of the system a bit more...
As a crude first guess you could set the minimum flow rates on the secondary pump and loop to be equivalent to the rated flow rate of the three-way valve(s). If this is an existing building, trend data will be necessary to figure out what that minimum flow setting should really be. In reality it's probably higher than the rated flow rate of the three-way valve(s).
Checkout this post for more information on modeling primary/secondary loops in OpenStudio/EnergyPlus
| | 3 | No.3 Revision |
I'm not sure what you mean by associated pipe runs but I believe the system that you're describing is supported by EnergyPlus/OpenStudio. However, there is not an explicit "3-way valve" option in EnergyPlys like there is in eQUEST. Personally, I think this is a good thing because it requires the modeler to think more about the operation of how the system a bit more...is operating.
As a crude first guess you could set the minimum flow rates on the secondary pump and loop to be equivalent to the rated flow rate of the three-way valve(s). If this is an existing building, trend data will be necessary to figure out what that minimum flow setting should really be. In reality it's probably higher than the rated flow rate of the three-way valve(s).
Checkout this post for more information on modeling primary/secondary loops in OpenStudio/EnergyPlus
