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A utilities company would like to transfer energy to its customers such that its daily cost of transmission is mini - mized. It has nuclear
A utilities company would like to transfer energy to its customers such that its daily cost of transmission is mini mized. It has nuclear reactors in each of the following cities: Sacramento, Houston and Atlanta. The daily energy capacities of these reactors are KwH KwH and KWH respectively. The company's clients are in LA Birmingham and Denver and have daily demands of KwH KwH and KwH respectively. These demands must be satisfied. The following table gives the dollar cost of unit energy transfers from source to destination cities. $ spent per KwH transferred Sacramento Houston Atlanta LA Birmingham Denver Use the following nonnegative decision variables: Number of KwH transferred from Sacramento to LA Number of KwH transferred from Sacramento to Birmingham Number of KwH transferred from Sacramento to Denver Number of KwH transferred from Houston to LA Number of KwH transferred from Houston to Birmingham Number of KwH transferred from Houston to Denver Number of KwH transferred from Atlanta to LA Number of KwH transferred from Atlanta to Birmingham Number of KwH transferred from Atlanta to Denver A State the objective function of the problem a min xxxb max xc max d min xB State the supply capacity constraints of the problem. a; ; b; ; cu; ; d; ; C State the demand constraints of the problem. a; ; b; ; c; ; d; ; D Suppose you set up the following Excel spreadsheet to solve the problem: A B I D E Optimal Decision Variable Values Sacramento Houston Atlanta O LA Birmingham Denver O o O Objective Function Coefficients Houston Atlanta LA Sacramento Birmingham Denver II Minimized Objective Function Amount Used IS RHS Limits Constraints iSupply for Sacramento ii Supply for Houston ili Supply for Atlanta iv Demand for LA v Demand for Birmingham vi Demand for Denver SOOO Use Excel Solver to determine the optimal energy transferring scheme. What is its optimal cost? a $o b $ II c $d $e $E Which source city has its energy capacity underutilized by KwH in the optimal solution? a Sacramento b Houston c Atlanta d None of the above
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