Table 5:
Capital cost and ten year though life cost of each selection strategy.
Fan diameter (m)
Fan efficiency
Fan investment cost (
£
)
Motor power (kW)
Electricity cost/year (
£
)
Electricity cost (10 yrs) (
£
)
Total fan and running costs (
£
)
Running cost as a percentage of total cost
Strategy 1
2.5
71%
28.500
185
32.412
217.488
245.988
88%
Strategy 2
1.8
66%
23.000
214
37.493
251.582
274.982
92%
Strategy 3
2.24
69%
32.000
190
33.288
223.366
255.366
87%