time charges on a day Bagel Store Consider a bagel store sel
time charges on a day (Bagel Store) Consider a bagel store selling three types of bagels that are p cording to the process flow diagram outlined below. We assume the demand is 180 ba a day, of which there are 30 grilled veggie, 110 veggie only, and 40 cream cheese. Assume that the workday is 10 hours long and each resource is staffed with one worker. 03.5 roduced ac Raw Bagels Put Grilled Stuff on Bagel Grilled Veggie Veggie Cream Cheese Cut Finished Bagels Veggies on Bagel Wrap Cream Cheese Moreover, we assume the following activity times: Cut Grilled Stuff Veggies Cream Cheese Wrap Activity time 3 [min./bagel 10 [min./bagell 5 [min./bagel) 4 [min./bagel) 2 [min./bagel] Activity times are independent of which bagel type is processed at a resource (for ex- ample, cutting a bagel takes the same time for a cream cheese bagel as for a veggie bagel). Where in the process is the bottleneck? a. b. How many units can the process produce within one hour, assuming the product mix has to remain constant? (Process with Rework) Consider the following three-stage production process of glass ceramics, which is operated as a worker-paced line. Q3.6
Solution
Process Time Capacity/hr Production in 10/hrs Cut 3 20 200 Grilled stuff 10 6 60 Veggies 5 12 120 Cream cheese 4 15 150 wrap 2 30 300 a From this data we can clearly see that the bottleneck is grilled stuff as it has the minimum capacity b Product mix/hr Grilled stuff 3 Veggies 11 Cream Cheese 4 So total units that the process can produce at max Grilled stuff 3.333333 Veggies 12.22222 Cream Cheese 4.444444 So in total 20 units can be produced at max