DOE-2 Energy Modeling Summary - Office Building
Page 17 of 21
Lighting (overall)
Lighting (overall)
1.1 W/ft2
1.5 W/ft2
C Office (Open)
C Office (Open)
1.1 W/ft2
1.3 W/ft2
C Office (Closed)
C Office (Closed)
0.3 W/ft2
0.3 W/ft2
C Office (Task)
C Office (Task)
0.75 W/ft2
0.7 W/ft2
C Corridor
C Corridor
1.0 W/ft2
1.3 W/ft2
C Mechanical
C Mechanical
AHU (Parking garage)
AHU (Parking garage)
C CO control of fan (intermittent
C No CO control of fan (constant
operation)
operation - 24 hours during weekdays)
Zone Air (Basement AHUs)
Zone Air (Basement AHUs)
C Fan control - variable speed
C Fan control - inlet guide vanes
Zone Air (Office AHUs)
Zone Air (Office AHUs)
C Fan control - variable speed
C Fan control - inlet guide vanes
C No air-side economizer
C Air-side economizer
Zone Air (Corridor, toilet rooms, elevator
Zone Air (Corridor, toilet rooms, elevator
lobbies AHUs)
lobbies AHUs)
C Fan control - variable speed
C Fan control - inlet guide vanes
Chilled Water Pumps
Chilled Water Pumps
Constant speed primary loop
Variable speed drive on primary loop
Variable speed drive on secondary loop
(in lieu of reset control)
Minimum part load ratio is 30%
No secondary loop
Minimum part load ratio is 50%
Hot Water Pumps (Variable speed)
Hot Water Pumps (Variable speed)
Minimum part load ratio is 30%
Minimum part load ratio is 50%
Cooling Towers
Cooling Towers
Design capacity 85oF
Design capacity 84oF
Maximum cells with lowest fan speed
Minimum cells
Waterside economizer below 50oF
No waterside economizer
Tower approach is 11oF
Tower approach is 10oF
Wetbulb reset
Fixed
Tower setpoint is 85oF, but reset based
Tower setpoint is 70oF
on wetbulb
Two speed fans
Two speed fans
APPENDIX J - GSA LEED COST STUDY
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