Consider a four-step serial process with processing times given in the following list. There is one...

Consider a four-step serial process with processing times given in the following list. There is one machine at each step of the process, and this is a machine-paced process. bullet

Step 1: 25 minutes per unit bullet

Step 2: 15 minutes per unit bullet

Step 3: 30 minutes per unit bullet

Step 4: 20 minutes per unit

Assuming that the process starts out empty, how long will it take (in hours) to complete a batch of 105 units?

Solutions

Expert Solution

Solution :

The rate of system is defined by machine with largest time per unit i.e. bottleneck resource.

In this case, biottleneck is Step : 3 with time 30 min per unit.

So system requires 30 * 105 min = 30 * 105 / 60 hours = 52.5 hours at bottleneck.

time for first unit at Step 1 and 2 and for last unit at step 4 is - 25 + 15 + 20 - 60min - 1 hr.

So total time for system is 52.5 + 1 - 53.5 hours.

Amanda K answered 2 years ago

Next > < Previous

Related Solutions

7. Consider a two-step, serial, production process with one resource at each step. The processing time...

7. Consider a two-step, serial, production process with one resource at each step. The processing time at step 1 is 10 minutes and the processing time at step 2 is 5 minutes. There is ample supply of raw materials for step 1 and ample demand. a) What is the capacity of this process in units per hour? b) Suppose there is variability in the processing time at step 2. Specifically, the coefficient of variation of processing time at step 2...

Consider the following four--?step assembly operation with quality problems. -The first resource has a processing time...

Consider the following four--?step assembly operation with quality problems. -The first resource has a processing time of 7 minutes per unit and one employee doing the operation ? The second resource has a processing time of 4 minutes per unit. It also has one employee doing the operation. However, this is a very delicate task and 0.79 of all products have to be scrapped after this step. ? Two workers are staffed for the third resource. No quality problems occur...

Consider the following four--‐step assembly operation with quality problems. -The first resource has a processing time o...

Consider the following four--‐step assembly operation with quality problems. -The first resource has a processing time of 5 minutes per unit and one employee doing the operation ‐ The second resource has a processing time of 4 minutes per unit. It also has one employee doing the operation. However, this is a very delicate task and 0.85 of all products have to be scrapped after this step. ‐ Two workers are staffed for the third resource. No quality problems occur...

1. List and describe the four stages of food processing.

1. List and describe the four stages of food processing. 2. Starting at the nasal cavity, list the major structures oxygen passes through to enter the alveoli of the lungs. 4. State the components of gastric juice and explain how it is secreted in order to protect the stomach layer. 6. Explain Boyle’s law in relation to the process of inhalation and expiration.

List the required tasks as a step-by-step process for creating a fee sheet

Create a detailed process flowchart that includes process inputs, process outputs, activities, activity times, processing and...

Create a detailed process flowchart that includes process inputs, process outputs, activities, activity times, processing and labor requirements for a fictional retail chain of coffee shops. Capacity analysis of the process, including the strategies used to address expected customer demand. Suggested metrics used to measure the process performance. Identify the process problem and make suggestions on how the process can be improved

According to the hypothesis of serial endosymbiosis, which of the following was a key initial step...

According to the hypothesis of serial endosymbiosis, which of the following was a key initial step in the origin of mitochondria? A. A eukaryotic host cell engulfed an aerobic, photosynthetic bacterium. B. A prokaryotic host cell engulfed an aerobic, heterotrophic bacterium. C. A eukaryotic host cell engulfed an aerobic, heterotrophic bacterium. D. A prokaryotic host cell engulfed an aerobic, photosynthetic bacterium.

The following diagram shows a four step process that begins with Operation 1 and ends with...

The following diagram shows a four step process that begins with Operation 1 and ends with Operation 4. The rates shown in each box represent the effective capacity of that operation a. Determine the capacity of this process. b. Which action would yield the greatest increase in process capacity: (1) Increase the capacity of Operation 1 by 15%; (2) Increase the capacity of Operation 2 by 10%; and (3) Increase the capacity of Operation 3 by 10%. ( This is...

list and describe a 5 step process in perception-checking.

List the eight components of the strategy execution process and one that you consider to be...

List the eight components of the strategy execution process and one that you consider to be the most important. Explain why it is important? Research real world examples to support position. Must be at least 300 words.

Subjects