A company is in the business of machining parts that go through various work centers. Suppose work center A feeds work center B with parts. The following times (in minutes) are given for each work center. Work Center Setup time Run time (per part) Move time A 3 0.5 6 B 2 0.1 8 A standard kanban container holds 50 parts that are transferred from work center A to work center B. The demand rate at work center B is four parts per minute. How many kanban containers are needed for this situation? 2. If move time is cut in half, what does this do to the number of containers needed? How much will this change reduce inventory?

A company is in the business of machining parts that go through various work centers. Suppose work center A feeds work center B with parts. The following times (in minutes) are given for each work center. Work Center Setup time Run time (per part) Move time A 3 0.5 6 B 2 0.1 8 A standard kanban container holds 50 parts that are transferred from work center A to work center B. The demand rate at work center B is four parts per minute. How many kanban containers are needed for this situation? 2. If move time is cut in half, what does this do to the number of containers needed? How much will this change reduce inventory?

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter12: Queueing Models

Section: Chapter Questions

Problem 59P

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A company is in the business of machining parts that go through various work centers. Suppose work center A feeds work center B with parts. The following times (in minutes) are given for each work center. A standard kanban container holds 50 parts that are transferred from work center A to work center B. The demand rate at work center B is four parts per minute. a. How many kanban containers are needed for this situation? b. If move time is cut in half, what does this do to the number of containers needed? How much will this change reduce inventory?
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Furniture Face Lift refinishes old wood furniture. Their process for refinishing chairs has 9 workers and 4 stations. Each chair starts at the Stripping station, then goes to Priming, then to Painting and finally to Inspection. Where there are multiple workers within a station, each worker works independently on his/her own chair. Assume inventory buffers are allowed between each station. Station Staffing Processing time (hours per chair per worker) Stripping 3 2.5 Priming 2 1.5 Painting 3 1.75 Inspection 1 0.8 A truck loaded with 10 chairs arrives. How many hours will it take them to complete these 10 chairs?(The accuracy should be of two digits after the decimal places.)
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The magnetic resonance imaging (MRI) unit of St Francis hospital has 2 MRI machines and sees two kinds of patients, "regular" patients and "contrast" patients. The regular patients don't need any special preparation before imaging but the contrast patients receive an injection of "dye" that enables the physicians to see the images more clearly. Regular patients require 15 minutes in an MRI machine whereas contrast patients take on average 25 minutes in an MRI machine. Over an 8-hour day, the MRI unit receives an average of 25 regular patients and 5 contrast patients. (a) What is the implied utilization (as a %) of the MRI unit? % (b) What are the actual and maximum flow rates through the MRI (patients per day)? regular contrast Actual flow rates Max flow rates.
The magnetic resonance imaging (MRI) unit of St Francis hospital has 2 MRI machines and sees two kinds of patients, “regular” patients and “contrast” patients. The regular patients don’t need any special preparation before imaging but the contrast patients receive an injection of “dye” that enables the physicians to see the images more clearly. Regular patients require 15 minutes in an MRI machine whereas contrast patients take on average 25 minutes in an MRI machine. Over an 8-hour day, the MRI unit receives an average of 25 regular patients and 5 contrast patients. Convert the demand and capacity into "hours of work per day" to answer the following questions: (a) What is the implied utilization (as a %) of the MRI unit? % (Round your answer to whole number) Hint: First calculate the demand in hours of work per day: If there are 5 Contrast patients per day and each Contrast patient takes 25 minutes to 'process', how many 'minutes of work' are demanded every day from…