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Process Design and Capacity Planning

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7.5 Meile Machine Shop, Inc., has a 1-year contract for the production of 200,000 gear housings for a new off-road vehicle. Owner Larry Meile hopes the contract will be extended and the volume increased next year. Meile has developed costs for three alternatives. They are general-purpose equipment (GPE), flexible manufacturing system (FMS), and expensive, but efficient, dedicated machine (DM). The cost data follow:

See attached

7.7 Using the data in Problem 7.5, determine the best process for each of the following volumes: (1) 75,000, (2) 275,000, and (3) 375,000.

7.11 Susan Meyer, owner/manager of Meyer's Motor Court in Key West, is considering outsourcing the daily room cleanup for her motel to Duffy's Maid Service. Susan rents an average of 50 rooms for each of 365 nights (365  50 equals the total rooms rented for the year). Susan's cost to clean a room is $12.50. The Duffy's Maid Service quote is $18.50 per room plus a fixed cost of $25,000 for sundry items such as uniforms with the motel's name. Susan's annual fixed cost for space, equipment, and supplies is $61,000. Which is the preferred process for Susan, and why?

S7.3 If a plant has an effective capacity of 6,500 and an efficiency of 88%, what is the actual (planned) output?

S7.5 Material delays have routinely limited production of household sinks to 400 units per day. If the plant efficiency is 80%, what is the effective capacity?

S7.7 Southeastern Oklahoma State University's business program has the facilities and faculty to handle an enrollment of 2,000 new students per semester. However, in an effort to limit class sizes to a "reasonable" level (under 200, generally), Southeastern's dean, Tom Choi, placed a ceiling on enrollment of 1,500 new students. Although there was ample demand for business courses last semester, conflicting schedules allowed only 1,450 new students to take business courses. What are the utilization and efficiency of this system?

S7.11 The three-station work cell illustrated in Figure S7.7, has a product that must go through one of the two machines at station 1 (they are parallel) before proceeding to station 2.

See attached

7.7 Using the data in Problem 7.5, determine the best process for each of the following volumes: (1) 75,000, (2) 275,000, and (3) 375,000.

7.11 Susan Meyer, owner/manager of Meyer's Motor Court in Key West, is considering outsourcing the daily room cleanup for her motel to Duffy's Maid Service. Susan rents an average of 50 rooms for each of 365 nights (365  50 equals thetotal rooms rented for the year). Susan's cost to clean a room is $12.50. The Duffy's Maid Service quote is $18.50 per room plus a fixed cost of $25,000 for sundry items such as uniforms with
the motel's name. Susan's annual fixed cost for space, equipment, and supplies is $61,000. Which is the preferred process for Susan, and why?

S7.3 If a plant has an effective capacity of 6,500 and an efficiency of 88%, what is the actual (planned) output?

S7.5 Material delays have routinely limited production of household sinks to 400 units per day. If the plant efficiency is 80%, what is the effective capacity?

S7.7 Southeastern Oklahoma State University's business program has the facilities and faculty to handle an enrollment of 2,000 new students per semester. However, in an effort to limit class sizes to a "reasonable" level (under 200, generally), Southeastern's dean, Tom Choi, placed a ceiling on enrollment of 1,500 new students. Although there was ample demand for business courses last semester, conflicting schedules allowed only 1,450 new students to take business courses. What are the utilization and efficiency of this system?

S7.11 The three-station work cell illustrated in Figure S7.7, has a product that must go through one of the two machines at station 1 (they are parallel) before proceeding to station 2.

See attached

A product needs to go through only one of the three assembly operations (the operations are in parallel).
a) Which operation is the bottleneck?
b) What is the process time of the overall system?
c) What is the process cycle time of the overall system?
d) If the firm operates 8 hours per day, 20 days per month, what is
the monthly capacity of the manufacturing process?

S7.28 James Lawson's Bed and Breakfast, in a small historic Mississippi town, must decide how to subdivide (remodel) the large old home that will become its inn. There are three alternatives: Option A would modernize all baths and combine rooms, leaving the inn with four suites, each suitable for two to four adults. Option B would modernize only the second floor; the results would be six suites, four for two to four adults, two for two adults only. Option C (the status quo option) leaves all walls intact. In this case, there are eight rooms available, but only two are suitable for four adults, and four rooms will not have private baths. Below are the details of
profit and demand patterns that will accompany each option:

See attached

Which option has the highest expected monetary value?

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Solution Summary

Process design and capacity planning is examined for general-purpose equipment.

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