Operation Management

A heat-treatment operation takes 6 hours to process a batch of parts with a standard deviation of 3 hours. The maximum that the oven can hold is 125 parts. Currently there is demand for 160 parts per day (16-hour day). These arrive to the heat-treatment operation one at a time according to a Poisson stream (i.e., with Ca = 1).
a) What is the maximum capacity (parts per day) of the heat-treatment operation?
b) If we were to use the maximum batch size, what would be the average cycle time through the operation?
c) What is minimum batch size that will meet demand?
d) If we were to use the minimum feasible batch size, what would be the average cycle time through the operation?
e) Find the batch size that minimize cycle time. What is the resulting average cycle time?

Don't use plagiarized sources. Get Your Custom Essay on
Just from \$13/Page

Consider a workstation with 11 machines (in parallel), each requiring one hour process time per job with Ce2 = 5. Each machine costs \$10,000. Orders for job arrive at a rate of 10 per hour with Ca2 =1 and must be filled. Management has specified a maximum allowable average response time (i.e., time a job spends at the station) of 2 hours. Currently it is just over 3 hours. Analyze the following options for reducing average response time.
a) Perform more preventive maintenance so that mr and mf are reduced, but mr/mf remains the same. This costs \$8,000 and does not improve the average process time but does reduce Ce2 to one.
b) Add another machine to the workstation at a cost of \$10,000. The new machine is identical to existing machines, so te = 1 and Ce2 = 5.
c) Modify the existing machines to make them faster without changing the SCV, at a cost of \$8,500. The modified machines would have te = 0.96 and Ce2 = 5. What is the best option?

PLACE THIS ORDER OR A SIMILAR ORDER WITH US TODAY AND GET A GOOD DISCOUNT
find the cost of your paper
Is this question part of your assignment?
Place order
Posted on May 23, 2016Author TutorCategories Question, Questions

## Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
\$26
The price is based on these factors:
Number of pages
Urgency
Basic features
• Free title page and bibliography
• Unlimited revisions
• Plagiarism-free guarantee
• Money-back guarantee
On-demand options
• Writer’s samples
• Part-by-part delivery
• Overnight delivery
• Copies of used sources
Paper format
• 275 words per page
• 12 pt Arial/Times New Roman
• Double line spacing
• Any citation style (APA, MLA, Chicago/Turabian, Harvard)

# Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

### Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

### Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

### Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.