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Hi,

I was wondering if it is possible to set up primary-secondary loops on one plant loop by having the primary pumps be in parallel branches on the supply side and then placing a secondary pump in series on the demand side just after the demand inlet node - I would attach a photo but I can't until my points are greater than 10. I know primary secondary loops have been addressed before in this forum [here] and I too would use that set up normally, especially as I've heard that the common pipe object is being made obsolete in EnergyPlus. However, the new California compliance "engine" automatically generates an OSM file and for primary secondary loops produces the loops as described. I was wondering if perhaps there is a quirk to EnergyPlus that makes this a valid modeling schematic?

Thanks for the help

(https://unmethours.com/question/2734/modeling-primary-secondary-chilled-water-pumps-in-openstudio/)

Hi,

I was wondering if it is possible to set up primary-secondary loops on one plant loop by having the primary pumps be in parallel branches on the supply side and then placing a secondary pump in series on the demand side just after the demand inlet node - I would attach a photo but I can't until my points are greater than 10. I know primary secondary loops have been addressed before in this forum [here] here and I too would use that set up normally, especially as I've heard that the common pipe object is being made obsolete in EnergyPlus. However, the new California compliance "engine" automatically generates an OSM file and for primary secondary loops produces the loops as described. I was wondering if perhaps there is a quirk to EnergyPlus that makes this a valid modeling schematic?

Thanks for the help

Hi,

I was wondering if it is possible to set up primary-secondary loops on one plant loop by having the primary pumps be in parallel branches on the supply side and then placing a secondary pump in series on the demand side just after the demand inlet node - I would attach a photo but I can't until my points are greater than 10. I know primary secondary loops have been addressed before in this forum here and I too would use that set up normally, especially as I've heard that the common pipe object is being made obsolete in EnergyPlus. However, the new California compliance "engine" automatically generates an OSM file and for primary secondary loops produces the loops as described. I was wondering if perhaps there is a quirk to EnergyPlus that makes this a valid modeling schematic?

Update: Here is the image

Thanks for the help

I was wondering if it is possible to set up primary-secondary loops on one plant loop by having the primary pumps be in parallel branches on the supply side and then placing a secondary pump in series on the demand side just after the demand inlet node - I would attach a photo but I can't until my points are greater than 10. node.

I know primary secondary loops have been addressed before in this forum here and I too would use that set up normally, especially as I've heard that the common pipe object is being made obsolete in EnergyPlus. EnergyPlus.

However, the new California compliance "engine" automatically generates an OSM file and for primary secondary loops produces the loops as described. described.

I was wondering if perhaps there is a quirk to EnergyPlus that makes this a valid modeling schematic?

I was wondering if it is possible to set up primary-secondary loops on one plant loop by having the primary pumps be in parallel branches on the supply side and then placing a secondary pump in series on the demand side just after the demand inlet node.

I know primary secondary loops have been addressed before in this forum here and I too would use that set up normally, especially as I've heard that the common pipe object is being made obsolete in EnergyPlus.

However, the new California compliance "engine" automatically generates an OSM file and for primary secondary loops produces the loops as described.

I was wondering if perhaps there is a quirk to EnergyPlus that makes this a valid modeling schematic?

I was wondering if it is possible to set up primary-secondary loops on one plant loop by having the primary pumps be in parallel branches on the supply side and then placing a secondary pump in series on the demand side just after the demand inlet node.

I know primary secondary loops have been addressed before in this forum here and I too would use that set up normally, especially as I've heard that the common pipe object is being made obsolete in EnergyPlus.

However, the new California compliance "engine" automatically generates an OSM file and for primary secondary loops produces the loops as described.

I was wondering if perhaps there is a quirk to EnergyPlus that makes this a valid modeling schematic?