Number of small chillers, m

2

Rated cooling capacity of the small chillers (RT),

500

Rated power of the small chillers (kw),

280.7

Design chilled water supply/return temperatures (˚C), ,

8/16

Rated power of the chilled water pump (kw),

20

Rated flowrate of the chilled water pump (kg/s),

100

Rated pumping head of the chilled water pump (m),

12

Rated power of the condenser water pump (kw),

47

Rated flowrate of the condenser water pump (kg/s),

120

Rated pumping head of the condenser water pump (m),

23

Air mass flowrate of the cooling tower (kg/s),

75.6

Fan motor power of the cooling tower (kw),

22.8

N, p the parameters in Equation (14)

0.5, 1.5

Design wet-bulb and dry-bulb temperatures (˚C), T

22/32

Electricity cost ($/kw^.h),

0.08

Fixed cost of chiller loading ($),

10