EQUIPMENT PURCHASE / REPLACEMENT OPTIONSTEAM MEMBERSPROPOSAL TOPICPROJECT OUTLINEWhen is rewinding more economical?When is replacement more economical?RESOURCESEEQUIPMENTQUIPMENT P PURCHASEURCHASE / / RREPLACEMENTEPLACEMENT O OPTIONS PTIONS EGR 403EGR 403PPROJECTROJECT P PROPOSALROPOSALTTEAMEAM 13 13TEAM MEMBERSSumeet Kals TechEduardo Robles OrganizerArin Saghatelian SummarizerPROPOSAL TOPICEconomic comparison of rewinding vs. replacement of a motorPROJECT OUTLINEMarginal cost for motor replacement versus motor repairCost of saved energy of energy-efficient motors versus rewinds of standard motorsExpected lifetime of repaired motor versus that of a replacementWhen is rewinding more economical?The original motor is already a high-efficiency unitThe motor runs only a few hours a yearThe rewind shop can guarantee that its rewind will not degrade efficiencyWhen is replacement more economical?The original motor is a low-efficiency motorThe cost of motor repair exceeds the cost of a new replacementThe motor has a high duty factor (it runs a considerable amount of hours per year)RESOURCESClass textbook: “Essentials of Engineering Economic Analysis”, 2nd ed.Internet resourcesMotor Data from Smurfit Newsprint
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