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[EnergyPlus_Support] Elegant Solution for AHU heating outlet temp 38 cooling outlet temp 16
- To: EnergyPlus_Support@xxxxxxxxxxxxxxx
- Subject: [EnergyPlus_Support] Elegant Solution for AHU heating outlet temp 38 cooling outlet temp 16
- From: "Jean marais" <jeannieboef@xxxxxxxxx>
- Date: Wed, 02 May 2012 11:08:34 -0000
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- Delivery-date: Wed, 02 May 2012 05:08:37 -0600
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Dear Group,
After finding some spar time I've implemented an idea I had a while ago, with some success.
There is a delema of setting a setpoint on a node which is in turn referenced by SetpointManager:MixedAir (used to take into account the fan heat) for an AHU where one wants 16 deg C supply air temp in cooling but 38 degC supply air temp in heating.
The problem was choosing between the SetpointManager:(Multi/Singlezone):Cooling or SetpointManager:(Multi/Singlezone):Heating.
To solve this, I added an extra piece of Object Duct, so that I could place the SetpointManager:(Multi/Singlezone):Cooling on the duct entrance node and SetpointManager:(Multi/Singlezone):Heating on the duct exit node (SupplySide last node).
Then I have SetpointManager:MixedAir objects for the cooling coil (which references the duct entrance Setpoint) and the heating coil (which references the duct exit Setpoint).
The only remaining imperfection is the SetpointManager:MixedAir for my mixing box...it can only reference either for the heating case or the cooling case.
Any ideas?
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