A Feasibility Study - Aaltodoc - Aalto-yliopisto

0
0 0,05 0,1 0,15 0,2 0,25 0,3
Figure 46. Permeate production (m³/day) and load factor on Site 3.
The minimum cost of water in Site 3 is 1,02 €/m³ with a nominal pump capacity of 0,09
m³/s and a load factor of 0,90. The cost of water is presented in Figure 47. The
appearance of the cost of water curve is very similar than that of Site 1, although the
minimum price is somewhat higher. Therefore the same principles apply: With pump
capacities smaller than 0,09 m³/s, too large portion of the wave resource is left
unutilized and thus the cost increases. When the pump capacities are greater than 0,09
m³/s, the costs of the entire system begins to increase faster than the permeate
production, although with a nominal capacity of 0,12 m³/s the cost of water is 1,03 m³/s,
only slightly higher than the minimum of 1,02 €/m³.
Cost of water (€/m³)
Permeate (m³/day)
1800
1600
1400
1200
1000
1,6
1,4
1,2
1
0,8
0,6
0,4
0,2
0
800
600
400
200
0
Permeate (m³/day)
Load factor (%)
WaveRoller nominal pump capacity (m³/s)
Cost of Water (€/m3)
Load factor (%)
0
0 0,05 0,1 0,15 0,2 0,25 0,3
WaveRoller nominal pump capacity (m³/s)
Figure 47. Cost of water (€/m³) on Site 3 with a nominal pump capacity of 0,09 m³/s.
64
1,2
1
0,8
0,6
0,4
0,2
1,2
1
0,8
0,6
0,4
0,2
Load factor
Load factor