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RE: [EnergyPlus_Support] model cooling part of a roof top unit
David,
The Coil:DX:CoolingBypassFactorEmpirical is used to cool system air and represents the evaporator, condenser and condenser fan. DX stands for direct expansion, meaning the coil is directly served by refrigerant rather than chilled water. If you know the performance of the unit then you'll have to convert this knowledge into five performance curves -- see the InputOutput Reference entry for Coil:DX:CoolingBypassFactorEmpirical ( it is in the Coils group).
Brent
-----Original Message-----
From: David Cormier [mailto:dcormier81@xxxxxxxxxxx]
Sent: Friday, February 20, 2004 12:51 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] model cooling part of a roof top unit
hello,
I begin to model a roof top unit. I need precision to model de cooling part
....
The air of the system pass through a evaporator .... but I need to also to
model the compressor and the 2 fan of the condenser .. to know the real
consumption of the system
I look at the IndEvapCoolerRTUOffice.idf ... but i don't understand why they
use COIL:DX:CoolingBypassFactorEmpirical
I need suggestion for this situation ... or a example of .idf file
thank you!
David Cormier
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