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[EnergyPlus_Support] Boiler loop problems





Dear Forum,

I think I figured this out sometime ago, but have forgotten what I did…..

·         First, ignore the GenSet  and just assume it’s another Boiler (because I am actually using a Boiler:HotWater  prior to introducing the GenSet into the model).

·         I am using “CommonPipeSimulation” in my PlantLoop definition in order to incorporate a secondary / demand side pump.

·         E+ does not like supply side variable speed pumps when CommonPipe is used, so I am using a constant speed pump for P1.

·         B1 and B2 do not run continuously.  B1 runs most of the time and B2 operates only when B1 cannot carry the load.

·         Since P1 runs continuously at constant speed, the water temperature leaving the Supply Outlet is diluted – it’s a blend of the B1 outlet temperature and the remainder of the flow, which goes through the bypass.

·         I don’t want diluted outlet temperature!  (It’s degrading coil performance on the demand side)

 

Suggestions, please!

p.s., If I get that part solved, the next step is to figure out

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