Batches of 4 (A-D) products are produced (in a flowshop plant) using the equipment processing times in

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Batches of 4 (A-D) products are produced (in a flowshop plant) using the equipment processing times in Table P3.18 (all times are given in hours).Table P3.18 Equipment Processing Times for Problem 3.18 Equipment Mixer Reactor Product AProduct BProduct

It is decided to operate using a campaign time of 600 h (1 month). The relative numbers of batches to meet current demand are nA = nB = nC = 3nD. Determine the numbers of each batch of A, B, C, and D for the 600 h campaign time, for the following scenarios:

  • Produce each product using single-product campaigns, that is, produce all A, then switch to B, etc.
  • Produce multiple products using the sequence AAABBBCCCDAAABBBCCCD….
  • Would the result change for Part (b) if a uis (unlimited intermediate storage) process was used instead of the zw (zero-wait) process used in Part (b)?
  • For Part (a), determine the amount of storage needed for each product to meet the demand over the 600 h campaign time.
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Analysis Synthesis And Design Of Chemical Processes

ISBN: 9780134177403

5th Edition

Authors: Richard Turton, Joseph Shaeiwitz, Debangsu Bhattacharyya, Wallace Whiting

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