Decision Tree and Linear programming
Chemicals, Inc. is a petroleum manufacturing plant located in the Middle East. It has been in existence over the past 15 years. They are currently working on their strategic plans for the year 2021 to 2026. The growth of export petroleum sales over the past couple of years has been good, but the sales could grow even more,  if the planned high-tech  oil refinery is built near the city where Chemicals, Inc. is located. Chemicals, Inc, is considering three strategies. First is to increase its current production operations, the second is to move closer to the proposed new oil refinery and the third is to do nothing. Strong growth as a result of the presence of the new oil refinery has a 55 percent probability and moving closer to it, would give annual returns of $390,000 per year. Weak growth however, would mean annual returns of $230,000. If nothing was done in the first year of 2021, and strong growth occurred, the strategy to increase its current production would be reconsidered. Strong growth with an increased production would give annual returns of $380,000 per year. Weak growth however would mean annual returns of $200,000. With no changes, there would be returns of $340,000 per year if there is strong growth and $210,000 per year if growth is weak. Increasing production will cost $ 174,000 and moving to a location closer to the refinery will cost $ 420,000. If growth is strong and the production is increased during the second year, the cost would also be  $174,000. The cost to operate are the same for all strategies.

  1. Decision Tree

You have been hired as a consultant by Chemicals. Inc. Construct a decision tree and advise Chemicals. Inc. on their best strategy to maximize their revenue.
Following your recommended strategy. Chemicals, Inc. wanted to develop an improved aviation fuel to be used by commercial jets at minimal cost. The fuel is a mixture of two fuels (Avgas A and Avgas B). There are 4,000 gallons of Avgas A and 8,000 gallons of Avgas B available. It needs no fewer than 6,000 gallons to fuel a jet to its farthest destination which has a maximum fuel storage capacity of 8,000 gallons.  The mixed fuel must have an octane rating of no less than 80. The octane rating is the weighted average of the individual octanes, weighted in proportion to the respective volumes. During mixture, the amount of Avgas obtained equals to the sum of the amounts put in. Avgas A has an octane of 90. and costs $2.40 per gallon. Avgas  B has an octane of 75 and costs $1.80 per gallon. In presenting your findings to Chemicals, Inc., they would like to see:

  1. Linear Programming
  2. The LINEAR PROGRAMMING equations with the constraints expressing this information. (As in                   Page  701)

https://online.claflin.edu/mod/assign/view.php?id=276347                                                           3/27/2021


  1. Solutions to the Linear Program using Excel Solver and showing the:
    1. Answer Report
    2. Sensitivity Report
    3. Limits Report
  2. The final Objective Function Equation

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