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E QUIPMENT P URCHASE / R EPLACEMENT O PTIONS. EGR 403 P ROJECT P ROPOSAL T EAM 13. T EAM M EMBERS. Sumeet Kals Tech Eduardo Robles Organizer Arin Saghatelian Summarizer. P ROPOSAL T OPIC. Economic comparison of rewinding vs. replacement of a motor. P ROJECT O UTLINE.
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EQUIPMENT PURCHASE/ REPLACEMENT OPTIONS EGR 403 PROJECT PROPOSAL TEAM 13
TEAM MEMBERS • Sumeet Kals Tech • Eduardo Robles Organizer • Arin Saghatelian Summarizer
PROPOSAL TOPIC Economic comparison of rewinding vs. replacement of a motor
PROJECT OUTLINE • Marginal cost for motor replacement versus motor repair • Cost of saved energy of energy-efficient motors versus rewinds of standard motors • Expected lifetime of repaired motor versus that of a replacement
When is rewinding more economical? • The original motor is already a high-efficiency unit • The motor runs only a few hours a year • The rewind shop can guarantee that its rewind will not degrade efficiency
When is replacement more economical? • The original motor is a low-efficiency motor • The cost of motor repair exceeds the cost of a new replacement • The motor has a high duty factor (it runs a considerable amount of hours per year)
RESOURCES • Class textbook: “Essentials of Engineering Economic Analysis”, 2nd ed. • Internet resources • Motor Data from Smurfit Newsprint Corp.