Hi everyone,
I have a problem when simulating primary/secondary chilled water loop in OS. I tried to create two separate loops and used a "heat exchanger: fluid to fluid" to couple them. First loop: primary loop in which the supply side has chiller and demand side includes the heat exchanger; Second loop: secondary loop in which the supply side includes the heat exchanger and the cooling coil is in the demand side.
However, there was a fatal error in the secondary loop: As for the "Object=PLANTEQUIPMENTOPERATIONSCHEMES", the required "[Control Scheme 1 Object Type], [Control Scheme 1 Name] and [Control Scheme 1 Schedule Name]" are all blank.
I export the osm file into idf and used E+ to check. I found that except for the secondary loop, all the other loops have completed PlantEquipmentOperationSchemes items. But for the secondary loop, only the name of the scheme has been defined, and the schedules, types are all missing.
If I add a chiller to the supply side of the secondary loop (parallel to heat exchanger), then the error is gone. Does it mean I cannot simulate a loop in which the only component of supply side is heat exchanger? It seems unreasonable.
Anyone has experienced this problem? Is this the correct way to simulate primary/secondary loop?
Thanks,
Yan
