Environmental Engineering Reference
In-Depth Information
r2+100-210 = r3
r3+750-1050 = r4
r4+100-380 = r5
min
cooling
Q
r5+50-0.0 =
Now using any optimization software:
Model:
10
−
6
min
heating
−
6
min
Q
10
Q
Min = (3*
+ 5*
)*3600*8760;
cooling
min
heating
Q
r1-
= -760;
r2-r1= -1170;
r3-r2= -110;
r4-r3= -300;
r5-r4= -280;
min
cooling
Q
-r5= 50;
min
heating
Q
≥ 0.0;
min
coolin
Q
≥0.0;
r1≥0.0;
r2≥0.0;
r3≥0.0;
r4≥0.0;
r5≥0.0;
The targets obtained graphically or algebraically or using mathematical programming,
give an idea about the potential utility needs of any industrial facility.
To get a better idea in terms of utility types needed, we need to construct a diagram
known as the grand composite curve (GCC) and use it for defining the kind of utilities we
need and how much we need. We can then utilize these findings to compare the current
