StudentNumber-1-4.1BlendingAviationGasolineatJansenGas.xlsx

StudentNumber-1-4.1BlendingAviationGasolineatJansenGas.xlsx

Jansen Gas

Blending Aviation Gasoline at Jansen GasRange names used
Blending_plan=Sheet1!$B$18:$D$21
Data on FeedstocksValue per gallonReid vapor pressureOctane (low TEL)Octane (high TEL)Gallons_available__1000s=Sheet1!$G$18:$G$21
Alkylate$4.50598107Gallons_produced_A=Sheet1!$B$27
CCG$2.5088793Gallons_produced_B=Sheet1!$D$27
SRG$2.2548389Gallons_sold__1000s=Sheet1!$B$22:$D$22
Isopentane$2.3520101108Gasoline_required__1000s=Sheet1!$B$24:$D$24
Leftover__1000s=Sheet1!$H$18:$H$21
Data on GasolineGas AGas BGas CMax_Ried_vapor_pressure_allowed=Sheet1!$H$30:$J$30
Gallons required (1000s)120130120Min_octane_required=Sheet1!$H$26:$J$26
Price per gallon$3.00$3.50$4.00Octane_level_obtained=Sheet1!$H$24:$J$24
Min octane required9097100Ried_vapor_pressure_obtained=Sheet1!$H$28:$J$28
Max Reid pressure777Total_revenue__Millions=Sheet1!$B$30
TEL levelLowHighHighUsed=Sheet1!$E$18:$E$21
Blending planGas AGas BGas CUsedGallons available (1000s)Leftover (1000s)
Alkylate37.1334.3168.56140.00<=1400.00
CCG87.890.000.0087.89<=13042.11
SRG4.9073.4661.64140.00<=1400.00
Isopentane0.0822.2324.7747.09<=11062.91
Gallons sold (1000s)130.00130.00154.97
>=>=>=Quality ConstraintsGas AGas BGas C
Gasoline required (1000s)120130120Octane level obtained11700.0012610.0015497.26
>=>=>=
Production ConstraintGas AGas BMin octane required11700.0012610.0015497.26
Gallons produced130.00>=130.00
Ried vapor pressure obtained910.00910.001084.81
Objective to Maximize<=<=<=
Total revenue (Millions)$ 1,718.02Max Ried vapor pressure allowed910.00910.001084.81

Altered without A >= B

Blending Aviation Gasoline at Jansen GasRange names used
Altered_Total_revenue__Millions='Altered without A >= B '!$B$26
Data on FeedstocksValue per gallonReid vapor pressureOctane (low TEL)Octane (high TEL)Blending_plan='Altered without A >= B '!$B$17:$D$20
Alkylate$4.50598107Gallons_available__1000s='Altered without A >= B '!$G$17:$G$20
CCG$2.5088793Gallons_sold__1000s='Altered without A >= B '!$B$21:$D$21
SRG$2.2548389Gasoline_required__1000s='Altered without A >= B '!$B$23:$D$23
Isopentane$2.3520101108Leftover__1000s='Altered without A >= B '!$H$17:$H$20
Max_Ried_vapor_pressure_allowed='Altered without A >= B '!$H$29:$J$29
Data on GasolineGas AGas BGas CMin_octane_required='Altered without A >= B '!$H$25:$J$25
Gallons required (1000s)120130120Octane_level_obtained='Altered without A >= B '!$H$23:$J$23
Price per gallon$3.00$3.50$4.00Ried_vapor_pressure_obtained='Altered without A >= B '!$H$27:$J$27
Min octane required9097100Total_revenue__Millions='Jensen Gas'!$B$29
Max Reid pressure777Used='Altered without A >= B '!$E$17:$E$20
TEL levelLowHighHigh
Blending planGas AGas BGas CUsedGallons available (1000s)Leftover (1000s)
Alkylate34.2952.6353.09140.00<=1400.00
CCG81.4327.820.00109.25<=13020.75
SRG4.2987.9847.73140.00<=1400.00
Isopentane0.0026.2619.1845.44<=11064.56
Gallons sold (1000s)120.00194.69120.00
>=>=>=Quality ConstraintsGas AGas BGas C
Gasoline required (1000s)120130120Octane level obtained10800.0018885.3112000.00
>=>=>=
Objective to MaximizeMin octane required10800.0018885.3112000.00
Altered Total revenue (Millions)$ 1,725.01
Difference w/o Gas A >= Gas B$ 6,988.41Ried vapor pressure obtained840.001362.86840.00
<=<=<=
Max Ried vapor pressure allowed840.001362.86840.00

1. The constraint of Gas >= Gas B is costing the company $6,988.41 in lost revenue.

Altered Medium TEL

Blending Aviation Gasoline at Jansen GasRange names used
Altered_TEL_Total_revenue__Millions='Altered Medium TEL'!$B$29
Data on FeedstocksValue per gallonReid vapor pressureOctane (low TEL)Octane (medium TEL)Octane (high TEL)Blending_plan='Altered Medium TEL'!$B$17:$D$20
Alkylate$4.50598102.50107Gallons_available__1000s='Altered Medium TEL'!$G$17:$G$20
CCG$2.5088790.0093Gallons_produced_A='Altered Medium TEL'!$B$26
SRG$2.2548386.0089Gallons_produced_B='Altered Medium TEL'!$D$26
Isopentane$2.3520101104.50108Gallons_sold__1000s='Altered Medium TEL'!$B$21:$D$21
Gasoline_required__1000s='Altered Medium TEL'!$B$23:$D$23
Data on GasolineGas AGas BGas CLeftover__1000s='Altered Medium TEL'!$H$17:$H$20
Gallons required (1000s)120130120Max_Ried_vapor_pressure_allowed='Altered Medium TEL'!$H$29:$J$29
Price per gallon$3.00$3.50$4.00Min_octane_required='Altered Medium TEL'!$H$25:$J$25
Min octane required9097100Octane_level_obtained='Altered Medium TEL'!$H$23:$J$23
Max Reid pressure777Ried_vapor_pressure_obtained='Altered Medium TEL'!$H$27:$J$27
TEL levelLowHighHighTotal_revenue__Millions='Jensen Gas'!$B$29
Used='Altered Medium TEL'!$E$17:$E$20
Blending planGas AGas BGas CUsedGallons available (1000s)Leftover (1000s)
Alkylate32.0554.8653.09140.00<=1400.00
CCG19.420.000.0019.42<=130110.58
SRG52.8839.3847.73140.00<=1400.00
Isopentane15.6417.5319.1852.35<=11057.65
Gallons sold (1000s)120.00111.78120.00
>=>=>=Quality ConstraintsGas AGas BGas C
Gasoline required (1000s)120130120Octane level obtained10800.0010842.2012000.00
>=>=>=
Production ConstraintGas AGas BMin octane required10800.0010842.2012000.00
Gallons produced120.00>=111.78
Ried vapor pressure obtained840.00782.43840.00
Objective to Maximize<=<=<=
Altered TEL Total revenue (Millions)$ 1,643.13Max Ried vapor pressure allowed840.00782.43840.00
Difference w/medium TEL$ (74,893.73)

2. The optimal revenue would decrease by $74,893.73 if Gas B was produced with a medium TEL level.

Altered Max Reid

Blending Aviation Gasoline at Jansen GasRange names used
Blending_plan='Altered Max Reid'!$B$17:$D$20
Data on FeedstocksValue per gallonReid vapor pressureOctane (low TEL)Octane (high TEL)Gallons_available__1000s='Altered Max Reid'!$G$17:$G$20
Alkylate$4.50598107Gallons_produced_A='Altered Max Reid'!$B$26
CCG$2.5088793Gallons_produced_B='Altered Max Reid'!$D$26
SRG$2.2548389Gallons_sold__1000s='Altered Max Reid'!$B$21:$D$21
Isopentane$2.3520101108Gasoline_required__1000s='Altered Max Reid'!$B$23:$D$23
Leftover__1000s='Altered Max Reid'!$H$17:$H$20
Data on GasolineGas AGas BGas CMax_Ried_vapor_pressure_allowed='Altered Max Reid'!$H$29:$J$29
Gallons required (1000s)120130120Min_octane_required='Altered Max Reid'!$H$25:$J$25
Price per gallon$3.00$3.50$4.00Octane_level_obtained='Altered Max Reid'!$H$23:$J$23
Min octane required9097100Ried_vapor_pressure_obtained='Altered Max Reid'!$H$27:$J$27
Max Reid pressure777Max Reid ChangeTotal_revenue__Millions='Altered Max Reid'!$B$29
Altered max Reid level7770
TEL levelLowHighHighUsed='Altered Max Reid'!$E$17:$E$20
Blending planGas AGas BGas CUsedGallons available (1000s)Leftover (1000s)
Alkylate37.1334.3168.56140.00<=140-0.00
CCG87.890.000.0087.89<=13042.11
SRG4.9073.4661.64140.00<=140-0.00
Isopentane0.0822.2324.7747.09<=11062.91
Gallons sold (1000s)130.00130.00154.97
>=>=>=Quality ConstraintsGas AGas BGas C
Gasoline required (1000s)120130120Octane level obtained11700.0012610.0015497.26
>=>=>=
Production ConstraintGas AGas BMin octane required11700.0012610.0015497.26
Gallons produced130.00>=130.00
Ried vapor pressure obtained910.00910.001084.81
Objective to Maximize<=<=<=
Total revenue (Millions)$ 1,718.02Max Ried vapor pressure allowed910.00910.001084.81

Altered Max Reid_STS

1
$E$14
1
0
7
1
$B$30
Max Reid pressure decrease

Jensen Gas (2)_STS

1
$E$13
1
1
7
1
$B$29
Input

Jensen Gas_STS

11
$B$12$B$13
11
901
1007
11
$B$29$C$13
Minimum required octane rating for Gas A1
1
7
1
$B$29
Max Reid vapor pressure
Input2

STS_1

Oneway analysis for Solver model in Altered Max Reid worksheetSensitivity of Total_revenue__Millions to Max Reid pressure decrease
Max Reid pressure decrease (cell $E$14) values along side, output cell(s) along topData for chart
Total_revenue__Millions1Total_revenue__Millions
0$ 1,718.02
Jeremy Murray: Solver found a solution. All constraints and optimality conditions are satisfied.
1718.02
1Not feasible
Jeremy Murray: Solver could not find a feasible solution.
Not feasible
2Not feasible
Jeremy Murray: Solver could not find a feasible solution.
Not feasible
3Not feasible
Jeremy Murray: Solver could not find a feasible solution.
Not feasible
4Not feasible
Jeremy Murray: Solver could not find a feasible solution.
Not feasible
5Not feasible
Jeremy Murray: Solver could not find a feasible solution.
Not feasible
6Not feasible
Jeremy Murray: Solver could not find a feasible solution.
Not feasible
7Not feasible
Jeremy Murray: Solver could not find a feasible solution.
Not feasible

Sensitivity of Total_revenue__Millions to Max Reid pressure decrease

012345671718.020000000

Max Reid pressure decrease ($E$14)

When you select an output from the dropdown list in cell $K$4, the chart will adapt to that output.

3. There is no feasible solution if Jansen were to lower the maximum Reid vapor pressure levels on each gas type by the same amount.

STS_2

Oneway analysis for Solver model in Jansen Gas worksheetSensitivity of Total_revenue__Millions to Minimum required octane rating for Gas A
Minimum required octane rating for Gas A (cell $B$12) values along side, output cell(s) along topData for chart
Total_revenue__Millions1Total_revenue__Millions
90$ 1,718.02
Jeremy Murray: Solver found a solution. All constraints and optimality conditions are satisfied.
1718.02
91$ 1,689.07
Jeremy Murray: Solver found a solution. All constraints and optimality conditions are satisfied.
1689.07
92Not feasible
Jeremy Murray: Solver could not find a feasible solution.
Not feasible
93Not feasible
Jeremy Murray: Solver could not find a feasible solution.
Not feasible
94Not feasible
Jeremy Murray: Solver could not find a feasible solution.
Not feasible
95Not feasible
Jeremy Murray: Solver could not find a feasible solution.
Not feasible
96Not feasible
Jeremy Murray: Solver could not find a feasible solution.
Not feasible
97Not feasible
Jeremy Murray: Solver could not find a feasible solution.
Not feasible
98Not feasible
Jeremy Murray: Solver could not find a feasible solution.
Not feasible
99Not feasible
Jeremy Murray: Solver could not find a feasible solution.
Not feasible
100Not feasible
Jeremy Murray: Solver could not find a feasible solution.
Not feasible

Sensitivity of Total_revenue__Millions to Minimum required octane rating for Gas A

909192939495969798991001718.021689.07000000000

Minimum required octane rating for Gas A ($B$12)

When you select an output from the dropdown list in cell $K$4, the chart will adapt to that output.

4. Jansen could raise the minimum required octane rating to 91 for Gas A. Any further increase would result in no feasible solutions. 

% increase model

Blending Aviation Gasoline at Jansen Gas
Data on FeedstocksValue per gallonAltered value per gallonReid vapor pressureOctane (low TEL)Octane (high TEL)Percentage increase
Alkylate$4.50$4.505981070%
CCG$2.50$2.5088793
SRG$2.25$2.2548389
Isopentane$2.35$2.3520101108
Data on GasolineGas AGas BGas C
Gallons required (1000s)120130120
Price per gallon$3.00$3.50$4.00
Altered price per gallon$3.00$3.50$4.00
Min octane required9097100
Max Reid pressure777
TEL levelLowHighHigh
Blending planGas AGas BGas CUsedGallons available (1000s)Leftover (1000s)
Alkylate37.1334.3168.56140.00<=140-0.00
CCG87.890.000.0087.89<=13042.11
SRG4.9073.4661.64140.00<=140-0.00
Isopentane0.0822.2324.7747.09<=11062.91
Gallons sold (1000s)130.00130.00154.97
>=>=>=Quality ConstraintsGas AGas BGas C
Gasoline required (1000s)120130120Octane level obtained11700.0012610.0015497.26
>=>=>=
Production ConstraintGas AGas BMin octane required11700.0012610.0015497.26
Gallons produced130.00>=130.00
Ried vapor pressure obtained910.00910.001084.81
Objective to Maximize<=<=<=
Total revenue (Millions)$ 1,718.02Max Ried vapor pressure allowed910.00910.001084.81

Jensen Gas % increase_STS

1
$G$11
1
0
0.25
0.05
$B$18:$D$21,$B$30
Percentage increase

STS_3

Oneway analysis for Solver model in Jansen Gas % increase worksheetSensitivity of Total_revenue__Millions to Percentage increase
Percentage increase (cell $G$11) values along side, output cell(s) along topData for chart
Blending_plan_1Blending_plan_2Blending_plan_3Blending_plan_4Blending_plan_5Blending_plan_6Blending_plan_7Blending_plan_8Blending_plan_9Blending_plan_10Blending_plan_11Blending_plan_12Total_revenue__Millions13Total_revenue__Millions
0%37.13
Jeremy Murray: Solver found a solution. All constraints and optimality conditions are satisfied.
34.3168.5687.890.000.004.9073.4661.640.0822.2324.77$ 1,718.021718.02
5%37.13
Jeremy Murray: Solver found a solution. All constraints and optimality conditions are satisfied.
34.3168.5687.890.000.004.9073.4661.640.0822.2324.77$ 1,803.921803.92
10%37.13
Jeremy Murray: Solver found a solution. All constraints and optimality conditions are satisfied.
34.3168.5687.890.000.004.9073.4661.640.0822.2324.77$ 1,889.821889.82
15%37.13
Jeremy Murray: Solver found a solution. All constraints and optimality conditions are satisfied.
34.3168.5687.890.000.004.9073.4661.640.0822.2324.77$ 1,975.731975.73
20%37.13
Jeremy Murray: Solver found a solution. All constraints and optimality conditions are satisfied.
34.3168.5687.890.000.004.9073.4661.640.0822.2324.77$ 2,061.632061.63
25%37.13
Jeremy Murray: Solver found a solution. All constraints and optimality conditions are satisfied.
34.3168.5687.890.000.004.9073.4661.640.0822.2324.77$ 2,147.532147.53

Sensitivity of Total_revenue__Millions to Percentage increase

05.000000074505806E-20.100000001490116120.150000005960464480.200000002980232240.251718.021803.921889.821975.732061.632147.5300000000002

Percentage increase ($G$11)

When you select an output from the dropdown list in cell $P$4, the chart will adapt to that output.

5. If all unit prices of the gas types and all unit values of the feedstocks increase by the same percentage, then the optimal blending plan remains the same.