Question
A utility company, with a power generation plant in Vermont, uses a special solid fuel (SSF) at a rate of 100,000 lbs. per day. It
A utility company, with a power generation plant in Vermont, uses a special solid fuel (SSF) at a rate of 100,000 lbs. per day. It also uses maintenance, repair and operational supply (MRO) materials at a rate of 1000 lbs. each day. The SSF is purchased from a producer in Texas at a cost of $0.05/lb., whereas the MRO materials are supplied by a New York distributor at a cost of $20/lb. The utility employs an inventory holding cost rate $0.25/$/year, takes possession of all purchased items after delivery and maintains safety stock levels of twice the usage during the supply lead time for both SSF and MRO materials. The following transportation choices are available: Train Lead time = 16 days Option 1: By the Carload (100,000 lbs. capacity) shipping cost = $380/carload Option 2: By Full train (50 cars) shipping cost = $12,000 per train. Truck Lead time = 4 days
TL Rates: Large Truck (60,000 lbs. capacity) for $2,700/truckload Small truck (40,000 lbs. capacity) for $2100/truckload
LTL Rate: $0.10/lb. with a minimum charge of $250/shipment, for any shipment less than 40,000 lbs.
Compute the minimum average daily total relevant costs for using each of these transportation choices for SSF and MRO materials and indicate your choice of the shipping mode and the associated shipment quantity per replenishment order for each of these items.
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