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[EnergyPlus_Support] DATA Center simulation
- To: EnergyPlus_Support@xxxxxxxxxxxxxxx
- Subject: [EnergyPlus_Support] DATA Center simulation
- From: Nuno Costa Brandão <ncostab@xxxxxxxxx>
- Date: Sat, 28 Mar 2009 12:23:04 -0000
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- Delivery-date: Sat, 28 Mar 2009 06:23:07 -0600
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Dear all,
I´m simulating a DATA CENTER.The system consists in VAV units supplied by a chilled water loop, with chillers and variable speed pumps and a condenser loop with a cooling tower with a variable speed pump also. The building as only cooling loads.
For the system simulation, I build the model by hand not using the HVACTEMPLATE objects. The simulation results, shows a very high energy consumption for the cooling tower pump.
I found that using the HVACTEMPLATE:PLANT:CHILLEDWATERLOOP for the "chilled water pump configuration", I can control the PUMP using the "CONSTANT PRIMARY VARIABLE SECONDARY" option which seems to define variable flow trough the coils and constant flow for the chillers with bypass option.
Questions:
#1. Is the high energy consumption for the cooling tower pump related to the PUMP control?
#2. Besides the HVACTEMPLATE option mentioned above, in which specific object can I define the PUMP control?
Thanks for your opinions,
Regards,
Nuno
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