subject
Engineering, 18.02.2020 01:02 golderhadashaowtatz

Consider the following three-station production line with a single product that must visit stations 1, 2, and 3 in sequence:

* Station 1 has five identical machines with average processing time of 15 minutes per job. * Station 2 has 12 identical machines with average processing time of 30 minutes per job. * Station 3 has one machine with average processing time of 3 minutes per job.

a) What are the bottleneck rate rb*,the raw process time To* and the critical WIP wo*? b) Compute the average cycle time when the WIP level is set at 20 jobs, under the assumption of: i) The best case

ii) The worst case

iii) The practical worst case

c) Suppose you desire the throughput of a line to be 90 percent of the bottleneck rate. Find the WIP level required to achieve this under the assumptions of:

i) The best case

ii) The worst case

iii) The practical worst case

d) If the cycle time at the critical WIP is 100 minutes, where does performances fall relatives to the cases? Is thered much room for improvement?

ansver
Answers: 2

Another question on Engineering

question
Engineering, 04.07.2019 18:10
A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.
Answers: 2
question
Engineering, 04.07.2019 18:20
For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor
Answers: 3
question
Engineering, 04.07.2019 19:10
The air in an automobile tire with a volume of 0.015 m3 is at 32°c and 140 kpa gage. determine the amount of air that must be added to raise the pressure to the recommended value of 206 kpa gage. assume the atmospheric pressure to be 128 kpa and the temperature and the volume to remain constant.[r-0.287 kj/kgk]
Answers: 3
question
Engineering, 06.07.2019 02:30
Air (c-1.006 kj/kg.k, r-0.287 kj/kg.k) enters a nozzle steadily at 280 kpa and 77°c with a velocity of 50 m/s and exits at 85 kpa and 320 m/s. the heat losses from the nozzle to the surrounding medium at 20°c are estimated to be 3.2 kj/kg. determine (a) the exit temperature and (b) the total entropy change for this process. solve this problem using constant specific heats.
Answers: 1
You know the right answer?
Consider the following three-station production line with a single product that must visit stations...
Questions
question
Advanced Placement (AP), 13.10.2019 22:50
question
Mathematics, 13.10.2019 22:50