All of the HVAC systems use EnergyPlus “HVAC Templates” as the basis for the systems. These are standard HVAC system types that come with EnergyPlus, designed to be representative of simple implementation of different systems.
The table below summarizes which basic HVAC template we use for each of the HVAC systems currently in Sefaira:
HVAC System in Sefaira |
HVAC Expand-objects template used |
VAV with Rooftop Package Unit |
|
VAV with Central Plant |
|
VAV with 100% Outside Air |
VAV with Central Plant |
4-pipe Fan Coil Units |
|
Active Chilled Beams |
4-pipe Fan Coil Units |
Passive Chilled Beams |
4-pipe Fan Coil Units |
4-pipe Fan Coil Units |
|
4-pipe Fan Coil Units |
|
Heating and Ventilation |
4-pipe Fan Coil Units |
Package Terminal Air Conditioner |
|
Package Terminal Heat Pump |
|
VRF Fan Coils |
|
Constant Volume (Single Zone) |
Constant Volume |
Systems that work from the same HVAC “Expand Objects” template will tend to have very similar characteristics. Similar systems that work from different “expand objects” templates could end up being quite different, even if the systems are very similar.
Click on the system name for a detail description of each “Expand Objects” template and assumptions / post-expansion changes we’ve made to the template if any.
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