> >> On Fri, Apr 15, 2011 at 11:42 AM, Ted_Li <
xiuy...@gmail.com> wrote:
>
> >>> Hi All,
>
> >>> Please see my answer for the process hw and comment.
>
> >>> Thanks!
> >>> Ted
> >>> ==================================
> >>> 357 Process analysis homework
>
> >>> a. What is the bottleneck now?
> >>> With 3 parallel conveyers that each produced a patty every 6
> >>> seconds, Brand Y burger could produce 1 patty every 2 seconds (6/3=2).
> >>> Now u=3600/2=1800 (/hour). Clearly Veggie Prep with u=1400/hour
> >>> becomes bottleneck now.
>
> >>> b. What is the cycle time for the process?
>
> >>> 3600/1400 = 2.57 seconds
>
> >>> c. What is the throughput time?
>
> >>> The same as before, since 2 min cooking is required.
> >>> 2 min cooking + 2.5 sec assy + 12 sec microwave = 2 min 14.5
> >>> seconds + queues
>
> >>> d. If they continue to sell 162,400 burgers per month, what is their
> >>> capacity utilization?
>
> >>> Capacity of System: 1 every 2.57 seconds = 23.33/min, 1400/hr, or
> >>> 33600/day {24 hours}.
> >>> If they continue to sell 162,400 burgers per month = 5413/day, the
> >>> capacity utilization is 5413/33600 = 16.1%
>
> >>> e. At what stages in the process would you expect work in progress to
> >>> pile up?
>
> >>> Between broiler and assembly there will be a queue due to slow
> >>> handling of Veggie Prep.