Question One: Process Analysis, Bottleneck, and Flow Diagram
We used barrels per hour (bbls/hr) as a common measure. Since no capacity information is provided for the receiving/testing or bulking/bagging steps, we assume that these steps are not bottlenecks. We estimated the average total input of cranberries into the system at 1,500 bbls/hr using data from Exhibit 1 and assuming that total deliveries in 1981 will be the same as 1980:
Average Wet Input = (.70)(1,500) = 1,050 bbls/hr
Average Dry Input = (.30)(1,500) = 450 bbls/hr
Our analysis (see table) indicates that the bottleneck for process fruit at Receiving Plant Number 1 (RP1) is the drying process for wet cranberries at 600 bbls/hr (see Exhibit A for flowchart).
Process Step Notes Total Available Capacity(bbls/hr) Wet Capacity (bbls/hr) Dry Capacity (bbls/hr)
Receiving/ Testing No capacity information provided; nothing in the case indicates that this step could be a bottleneck n/a n/a n/a
Dumping (60 mins / 7.5 mins/truck) x 5 dumpers x 75 bbls/truck 3,000 n/a n/a
Holding Bins 17-24 are assumed to hold wet berries since they comprise 70% of total shipments 7,200 3200 4000
De-stoning (dry only) Dry berries only (1500 bbls/hr x 3 units) 4,500 n/a 4500
De-chaffing 2 dechaffers connected to wet process (1500 bbls/hr x 2 units); 1 to dry process (1500 bbls/hr x 1 unit) 4,500 3000 1500
Drying (wet only) Wet berries only (200 bbls/hr x 3 units) 600 600 n/a
Separation 400 bbls/hr/line x 3 lines (priority given to wet berries since they are majority of product, take the longest to process and can not be stored over night) 1,200 600 600
Bulking/ Bagging No capacity information provided; nothing in the case indicates that this step could be a bottleneck n/a n/a n/a
Question Two: Peak Day Analysis
Total berry input for the day will be 20,000 bbls. Over a 12 hour period, trucks...