소개글
[생산관리] National Cranberry Cooperative(NCC)에 대한 자료입니다.
목차
1. Introduction
2. Problem of NCC
3. Solution
4. Creative ideas
본문내용
Introduction
99% of all sales of cranberries were made by National Cranberry Cooperative(NCC).
Problem: incontrollable overtime costs & truck queue
Walliston’s answer: buying and installing two new dryers
Problem analysis
Destoning, Dechaffing and drying capacity
- Dry berry process
Destoning: 1500(bbl/hr) * 3 = 4500(bbl/hr)
Dechaffing: 1500(bbl/hr) * 2 = 3000(bbl/hr)
- Wet berry process
Destoning: 1500(bbl/hr) * 1 = 1500(bbl/hr)
Drying: 200(bbl/hr) * 3 = 600(bbl/hr)
Quality grading line & Bailey mills capacity
- Quality grading lines
400(bbl/hr) * 3 = 1200(bbl/hr)
- Bailey mills
400(bbl/hr) * 1200 = 600(bbl/hr)
Peak day
- Arrival of Wet berry :
19,000 bbl * 70% = 13,330 bbl
- Operate time :
13,330 (bbl) / 600( bbl/ hr) = 22.2 hr
- Arrival rate:
13,303 bbl/11 hr = 1,210 bbl/ hr
- Bottle neck :
1210 bbl/hr - 600 bbl/hr =610 bbl/hr
- Total bottleneck inventory amount :
610 bbl/hr *11hr=6,710 bbls
Solutions
-Dryer capacity: 800
Bottleneck = 1,210 - 800 = 410/hr
Total bottleneck inventory amount = 410 * 11 = 4,510
Remaining bottleneck: 4,510 - 3200(bins max) = 1,310
In this case, we cannot solve truck waiting problem. So we need additional bins.