Environmental Engineering Reference
In-Depth Information
Figure 4.3
Objective functions for solid bricks optimization.
and lower carbonates contents can be held responsible for lower optimal
i ring temperature.
Comparing the outputs for the three heavy clays products groups, it was
concluded that the highest
CS
and
VMC
, and the lowest
WA
and
WLF
were
optimal for rooi ng tiles production.
h e objective function, regarding SiO
2
/Al
2
O
3
/Fe
2
O
3
/CaO content were
shown in the surface plots, for Group I (i gure 4.3). Objective function
gained values between 0.6 and 0.7 on these plots, and the obtained qua-
dratic surface varied depending on the variables used from “peak-type”
(for SiO
2
vs. Al
2
O
3
graph), “saddle-type” (for SiO
2
vs. Fe
2
O
3
), and “rising
ridge” (for SiO
2
vs. CaO, Al
2
O
3
vs. Fe
2
O
3
, Al
2
O
3
vs. CaO, and Fe
2
O
3
vs. CaO).
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