[Bldg-sim] Modeling Centralized Water-to-Water HPs with Geothermal HPs using EE4

[Ahmed Azhari]

Hi Brian, Thanks for your reply.
This is the scenario; two make up air units provide fresh air into condominium corridors. The heating and cooling coils are fed from water-to-water heat pumps. In each suite, there is a ground source heat pump. 
If i follow your suggestion, I create a CombinationGSHP plant with MAU system (perhaps i should choose 2-pipe FCU system) and assign only the zones with the corridors (since fresh air is dumped into corridors). 
The second plant would be Geothermal system with a dummy MAU system and assign suite zones under that system. I should set the fresh air quantities to zero in the suites since fresh air has been taken care off in the first plant? 
Do you think this is a good presentation of the system?
Regards,Ahmed 

From: bfountain at greensim.com
To: a2_azhari at hotmail.com; bldg-sim at lists.onebuilding.org
Subject: RE: [Bldg-sim] Modeling Centralized Water-to-Water HPs with Geothermal HPs using EE4
Date: Fri, 22 Jun 2012 14:14:09 -0400

Hi Ahmed, You can define multiple plants in EE4 – what if you created one plant for your centralized water-to-water heat pumps and a second plant for your distributed heat pumps? Brian From: bldg-sim-bounces at lists.onebuilding.org [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Ahmed Azhari
Sent: Friday, June 22, 2012 1:04 PM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] Modeling Centralized Water-to-Water HPs with Geothermal HPs using EE4 I’m using EE4 (Canadian Energy Modeling Software) to model centralized water-to-water heat pumps system which provides hot/chilled water to make up air unit heating and cooling coils respectively, there are also distributed ground source heat pumps in the spaces which are connected to the ground to extract/reject heat. This combination of systems are not supported in EE4, does anyone know of a work-around to model such system? I appreciate any input on this ... Thanks,Ahmed 		 	   		  
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