Natural Blends Inc Essays

Natural Blends Inc Essays Natural Blends Inc Essay Natural Blends Inc Essay NATURAL BLENDS Inc Here we have 3 processes to consider, the Extraction, Filtration and Concentration. Extraction has a maximum capacity of 20,000 lbs/hr Filtration has a maximum capacity of 20,000 lbs/hr Concentration has a maximum capacity of 18,000 lbs/hr For Extraction we have a setup time of 20 minutes. For Filtration we have a setup time of 30 minutes after 90 minutes of filtration. For Concentration there is no setup time loss. The processes are simultaneous in nature, and there is no buffer in between. So, if there is a shutdown of a single process, the entire system shuts down. Now, if we do consider a 2 hour time slot, then there will be effectively production for 1 and ? hours due to filtration setup time: For Extraction: The maximum production is 30,000 lbs. For Filtration: The maximum production is 30,000 lbs. For Concentration: The maximum production is 27,000 lbs. So the bottle neck operation is the Concentration process and the production rate will be 13,500 lbs/hour. A cycle is completed in 2hrs. PART A Assumption: We are considering that since oranges are of same type the bin will be changed after 3 and ? rs of production. The bin will be changed when the Filtration process will be stopped to change filter. Hence, saving valuable time. 1a. Amount of orange production possible in 1 day (8 Hrs) =13500*8=108000 lbs There is a loss of utilization time of 30 mins (due to filtration process) per 2 hours of the whole system. 1b. The idle time for the extraction process in a day would be = (1/2)*4= 2 hours We see that there is a bottle neck condition in th e Concentration process, so we will install a storage capacity in between Filtration and Concentration. a. We will add storage tank between step 3 and step 4. The capacity of tank will be 3000 lbs. 2b. If we add storage tank between step 2 and step 3, then The maximum production of Extraction process is 20,000lbs/hr. The maximum production of Filtration is also 20,000lbs/hr. But Filtration works for only 90 min. So effective production rate is =20,000*1. 5 =30,000lbs for 2 hrs i. e. 15,000/hr considering a cycle of 2 hrs the maximum production of Extraction is 40,000 lbs and that of Filtration is 30,000. Thus a tank of capacity 5,000lbs can be added between them. But adding tank between Extraction and Filtration will not increase the daily production. When a storage tank is added between Filtration and Concentration, Now for 2 hours slot, we see that there is a processing deficit of 3000(30,000-27,000) lbs. So we install storage of capacity 3000lbs. This will increase the daily production. Daily production= 30,0004= 120,000 lbs Thus there is increase of 12,000lbs/day after adding a storage tank. 3a. Additional fixtures of $20,000 for Filtration process and $10,000 for Extraction should be done to maximize the output. 3b. As discussed in question 2a and 2b the capacity of storage tank, which can be added between Filtration and Concentration should be 3,000lbs. The cost of construction of tank is given as $30/lbs. Hence the total cost for construction of storage tank will be 30 x 3000= $90,000, and the production will increase to 120,000 lbs/day. When additional fixtures are added in Filtration and Extraction process the setup time will reduce by 50% i. . the setup time for Extraction will be 10 min and that for Filtration will be 15 min. So our 2 hour cycle will be reduced to 1 hr 45min cycle. So an additional 1 hr will be available for production. Now number cycle per day will increase to= 8/1. 75= 4. 57 cycles per day. The production in one cycle will be same i. e. 27,000lbs. Hence the daily production will increase to 27,000 x 4. 57= 123,390 lbs The cost of improvement will be $20,000 for Filtration and $10,000 for extraction. Hence total cost will be $30,000. PART B Assumption: Since the amount of different sizes of oranges processed should be equal in a week and each size should be processed at least once per day, we can consider the following schedule; DAY0-2hrs2-4 hrs4-6 hrs6-8 hrs 1BAAC 2C BBA 3A CCB 4BCCA 5CBBA 6ACCB Where A, B and C represents large, medium and small oranges respectively, such that A=B=C 4a. The setup change in Extraction will happen for three times. 4b. As seen in the above schedule the setup is changed for 3 times. 4c. The quantity of oranges of particular size which will be processed before switching to other size will be 54,000 pounds. The maximum time same size of oranges will be processed is 4 hrs. The production for 2hr cycle is 27,000lbs, hence the maximum quantity is 54,000lbs. 4d. The total amount of juice concentrate processed is 108,000 lbs. as the production for 1 cycle of 2 hrs is 27,000lbs and there are 4 such cycles hence total production will be 108,000 lbs Submitted by:- Joydeep Mukherjee Rejo Matthew Tushar Deshmukh Vinay Panwar