Handbook of air conditioning and refrigeration / Shan K

6.48 CHAPTER SIX
Area of perimeter zone
Area of interior zone
Floor-to-floor height
Floor-to-ceiling height
Window:
Percentage of glass/exterior wall
U value
Interior shading, SC
Exterior wall:
Length
Height
U value
Partition wall:
Length
Height
U value
6300 ft 2 (586 m 2 )
5600 ft 2 (520 m 2 )
13 ft (4 m)
9 ft (2.74 m)
This typical floor has the following internal loads: The occupant density is 7 persons per 1000
ft 2 (93 m 2 ). For each person, there is 250 Btu/h (73 W) sensible heat gain, and 250 Btu/h (73 W)
latent heat gain. The lighting load, including ballast allowance, is 1 W/ft 2 (10.7 W/m 2 ). The miscellaneous
equipment load due to personal computers and appliances is 1 W/ft 2 (10.7 W/m 2 ).
FIGURE 6.9 Typical plan of a high-rise office building.
0.345
0.67 Btu/h�ft 2 �°F (3.8 W/m 2 �°C)
0.36
120 ft (36.6 m)
13 ft (2.74 m)
0.12 Btu/ h�ft 2 �°F (0.68 W/(m 2 �°C)
200 ft (61 m)
9 ft (2.74 m)
0.12 Btu/h�ft 2 �°F (0.68 W/m 2 �°C)