HVAC Systems Energy Demand vs. Building Energy Demand. Ivan Korolija Institute of Energy and Sustainable Development De Montfort University, Leicester, UK email: firstname.lastname@example.org. Introduction. Building size/shape Building fabrics Glazing percentage / characteristics Shading e tc….
Institute of Energy and Sustainable Development
De Montfort University, Leicester, UK
Zone 1 (open office)
Zone 2 (common spaces)
Zone 3 and 4 (cellular offices)
Controlled by dual setpoint thermostat.
Occupied hours (weekdays between 7am and 7pm):
Chilled Ceiling system: Cooling setpoints +2°C
Cooling/heating demands are calculated by taking into consideration standard heat gains/losses which are:
How do typical HVAC systems handle different building loads?
All-Air systems with zone reheating boxes:
Variable Air Volume System (VAV)
Constant Air Volume System (CAV)
Air-Water systems with dedicated air:
Both systems operates with 100% fresh air
Heat Recovery Unit
Fan-coil System (FC)
Chilled Ceiling System (ChCeil)