Assignment #4: Case Problem "Stateline Shipping and Transport Company"

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assignment_4_template_with_some_formulas.xlsx

Answer Report 1

Microsoft Excel 12.0 Answer Report
Worksheet: [10 Assigment 4 solution-1.xls]Sheet1
Report Created: 8/26/2011 3:32:06 PM
Target Cell (Min)
Cell Name Original Value Final Value
$C$13 Cost = Whitewater 0 2822
Adjustable Cells
Cell Name Original Value Final Value
$C$5 Kingsport Whitewater 0 35
$D$5 Kingsport Los Canos 0 0
$E$5 Kingsport Duras 0 0
$C$6 Danville Whitewater 0 0
$D$6 Danville Los Canos 0 0
$E$6 Danville Duras 0 26
$C$7 Macon Whitewater 0 0
$D$7 Macon Los Canos 0 0
$E$7 Macon Duras 0 42
$C$8 Selma Whitewater 0 1
$D$8 Selma Los Canos 0 52
$E$8 Selma Duras 0 0
$C$9 Columbus Whitewater 0 29
$D$9 Columbus Los Canos 0 0
$E$9 Columbus Duras 0 0
$C$10 Allentown Whitewater 0 0
$D$10 Allentown Los Canos 0 28
$E$10 Allentown Duras 0 10
Constraints
Cell Name Cell Value Formula Status Slack
$C$12 Shipped Whitewater 65 $C$12<=$C$11 Binding 0
$D$12 Shipped Los Canos 80 $D$12<=$D$11 Binding 0
$E$12 Shipped Duras 78 $E$12<=$E$11 Not Binding 27
$G$5 Kingsport Shipped 35 $G$5=$F$5 Not Binding 0
$G$6 Danville Shipped 26 $G$6=$F$6 Not Binding 0
$G$7 Macon Shipped 42 $G$7=$F$7 Not Binding 0
$G$8 Selma Shipped 53 $G$8=$F$8 Not Binding 0
$G$9 Columbus Shipped 29 $G$9=$F$9 Not Binding 0
$G$10 Allentown Shipped 38 $G$10=$F$10 Not Binding 0

The Transportation Model

Stateline Shipping and Transport Company
A model for shipping the waste directly from the 6 plants to the 3 waste disposal sites Shipping Costs ($/per barrel)
Plants Waste Disposal Sites Supply Shipped Plants Waste Disposal Sites
A. Whitewater B. Los Canos C. Duras A.Whitewater B. Los Canos C. Duras
1. Kingsport 35 1. Kingsport 12
2. Danville 2. Danville
3. Macon 3. Macon
4. Selma 4. Selma
5. Columbus 5. Columbus
6. Allentown 6. Allentown
Demand 65
Shipped
Cost =
Finish this Minimize Z=$12X1A+
Finish this Subject to: Solution: Finish this
X1A+X1B+X1C = 35 X1A = ?
=
=
=
=
=
<= 65
<=
<= Z =
Xij   >= 0, i=1,2,3,4,5,6;   j=A,B,C.

The Transshipment Model

Stateline Shipping and Transport Company
A transshipment model in which each of the plants and dispposal sites can be used as intermediate points
Plants Waste Disposal Sites Supply Shipped
1.Kingsport 2.Danville 3.Macon 4.Selma 5.Columbus 6.Allentown A.Whitewater B.Los Canos C. Duras
Plants 1.Kingsport 35 0
2.Danville 26 0
3.Macon 42
4.Selma 53
5.Columbus 29
6.Allentown 38
Waste disposal Sites A.Whitewater
B.Los Canos
C. Duras
Demand 65 80 105
Shipped 0
Total Cost = $ - 0
Shipping Costs ($/per barrel)
Plants Waste Disposal Sites
1. Kingsport 2. Danville 3. Macon 4. Selma 5. Columbus 6. Allentown A.Whitewater B.Los Canos C.Duras
Plants 1. Kingsport 6 4 9 7 8 12 15 17
2. Danville 6 11 10 12 7 14 9 10
3. Macon 5 11 3 7 15 13 20 11
4. Selma 9 10 3 3 16 17 16 19
5. Columbus 7 12 7 3 14 7 14 12
6. Allentown 8 7 15 16 14 22 16 18
Waste disposal Sites A.Whitewater 12 10
B.Los Canos 12 15
C.Duras 10 15
Constraint at plant 1: (x12+x13+x14+x15+x16+x1A+x1B+x1C) - (x21+x31+x41+x51+x61) = 35
out in
Constraint at West site A: (x1A+x2A+x3A+x4A+x5A+x6A+xBA+xCA) - (xAB+xAC) <= 65
in out
Xij   >= 0, i=1,2,3,4,5,6, A,B,C;   j=1,2,3,4,5,A,B,C.

Sheet3

35
26
42
53
29
38