Environmental Engineering Reference
In-Depth Information
Figure 32. Effect of the number of effects and the fuel cost on the resulting cost of water - collector
cost, c
col
= 300 $/m
2
, max. brine temp., T
b
= 90
o
C (solar MED plant capacity = 130 m
3
/day).
Figure 33 demonstrates how the plant capacity and fuel cost affect the cost of water. As
expected, higher plant capacity results in a lower water cost and higher fuel cost results in a
higher water cost.
Figure 33. Cost of water as a function of plant capacity and fuel cost, N
eff
= 25, T
b
= 70
o
C, c
col
=300
$/m
2
(solar MED plant).
Figure 34 shows the effect of the cost of collector on the resulting water cost for solar
MED plant capacity ranging from 100 m
3
/day to 1000 m
3
/day. It can be seen that the collector
cost has a vital contribution to the cost of water. For a plant capacity of 1000 m
3
/day, the cost
of water is 2.24 $/m
3
for a collector cost of 200 $/m
2
and is 3.35 $/m
3
for a collector cost of
600 $/m
2
.
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