Re: [EnergyPlus_Support] New HVAC problem

["Edward Lyon" <eglyon@xxxxxxx>]

I have had some problems with this warning if the inlet conditions are too warm.  The EnergyPlus loops are mass flow calculated on initial standard air conditions.  If you have a very hot zone and turn on a dx cooling that normally works fine, the volume flow for mass flow at high temp can exceed the unit design rate.

Is there a time table for integrating real fans with constant volume to replace simple fans with constant mass flow? 

Ned Lyon

Senior Staff Engineer
Simpson Gumpertz & Heger Inc.

41 Seyon Street
Building #1, Suite 500
Waltham, MA  02453

Phone:  781-907-9000
Fax:  781-907-9009


>>> mjwitte@xxxxxxxx 02/13/03 05:58PM >>>



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