Hello everyone.

In my model, I have water source and water demand streams and each of them has a contamination level ( HN ).in my formulation I have witten :

massload…

sum ( i,f(i,j) * cs(i,‘HN’)) + fw(j) * cf(‘HN’) =L = d(j) * cd(j,‘HN’) ;

f(i,j) shows water stream from source i to demand j

cs shows contamination level in source

cd shows contamination level in demand

fw fresh water flowrate

d(j) demand flow rate

and the contamination level of my model is introduced in a range,for example :

## cs.lo ( i , ‘HN’)=0

cs.l ( ‘1’ , ‘HN’)=14

cs.up ( ‘1’ , ‘HN’ )=20

.

.

.

when i run the model,the model gives optimal solution,but i want to figure out,what level of contamination the model has used in order to get the solution?

if in the display command i put " display cs.l ; " ,the model gives the cs initial value that has been introduced in the model as above but when i check it the value doesnt match the answer. and if i omit the " cs.l=14 " form the formulation, the model uses the lwer bound which is zero and it is not a practical answer.

how can I see what value the model will use to get the answer??

thank you all in advance

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