A critical machine in BHP Billiton's copper refining operation was purchased 7 years ago for $160,000. Last year a replacement study was performed with the decision to retain it for 3 more years. The situation has changed. The equipment is estimated to have a value of $8000 if "scavenged" for parts now or anytime in the future. If kept in service, it can be minimally upgraded at a cost of $43,000 to make it usable for up to 2 more years. Its operating cost is estimated at $22,000 in the first year and $29,000 in the second year. Alternatively, the company can purchase a new system, the challenger, that will have an AWC of $-44,000 over its ESL. Use a MARR of 10% per year and annual worth analysis to determine when the company should replace the machine. The AW value of the challenger is $-| and the AW value of the defender at the end of year 2 is $-| The company should replace the machine (Click to select) ☑

A critical machine in BHP Billiton's copper refining operation was purchased 7 years ago for $160,000. Last year a replacement study was performed with the decision to retain it for 3 more years. The situation has changed. The equipment is estimated to have a value of $8000 if "scavenged" for parts now or anytime in the future. If kept in service, it can be minimally upgraded at a cost of $43,000 to make it usable for up to 2 more years. Its operating cost is estimated at $22,000 in the first year and $29,000 in the second year. Alternatively, the company can purchase a new system, the challenger, that will have an AWC of $-44,000 over its ESL. Use a MARR of 10% per year and annual worth analysis to determine when the company should replace the machine. The AW value of the challenger is $-| and the AW value of the defender at the end of year 2 is $-| The company should replace the machine (Click to select) ☑

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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