Table 4
Academic Building (Code 171-10) Demand and Load Factor Calculations
(See Note 1)
MOTORS
GENERAL
MISCEL-
LANEOUS
FRAC-
AIR
TIONAL
LIGHTING
CONDI-
TOTAL
& SMALL
TIONING
APPLI-
ANCES
1. Watts/square foot
1.0
1.0
2.7
4.5
9.2
(Watts/square meter)
10
10
26.5
45
91.5
2. Connected load
100 kw
100 kw
265 kw
450 kw
915 kw
3. Specific load demand
factor
30%
10%
75%
70%
4. Maximum demand load
(line 2 X line 3)
30 kw
10 kw
200 kw
315 kw
555 kw
5. Annual operating
(1-shift) usage
1,200 hrs 1,500 hrs 2,200 hrs
1600 hrs
6. Annual usage in
megawatt hours
(line 4 X line 5)
36
15
440
504
995
7. Demand factor
line 4
Formula =
60%
(1)
line 2
8.
Load factor
line 6
Formula =
20%
(4)
line 4 X 8760 hrs
Note 1:
Calculated for a 100,000 square-foot (10,000 square meter)
building.
See tables 2 and 3 for data used for lines 3 and 5
respectively. Load growth is included in connected load.
Maximum demand load includes allowance for system loss. For
this illustration, the coincidence factor occurring when
individual demand loads are added is considered to be 1.00 and
has not been shown.
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