10.6 PRACTICE PROBLEMS 10.6.1 In a batch process, one of the critical characteri

Question

10.6 PRACTICE PROBLEMS 10.6.1 In a batch process, one of the critical characteristics is yield. The operation under study involves a biochemical process and past yields have been erratic. During recent processing of one such batch, the size tank tvoi- cally used in step 2 of the process was not available so a larger tank was used. The yield for that batch was markedly higher than that which had been experienced in the past. Whether or not the change in the tank size was the reason for the increased yields was not clear. However, speculation about why the change in tanks might have increased yields identified two possible reasons for such an increase: The larger tank might have meant that the agitation occurring during this phase may have increased because of the additional space in the tank. The growth in the biological mechanism occurring at this stage may pro- ceed in a more efficient fashion with the additional air space provided by using a larger tank. 1. 2.

Explanation / Answer

Batch processing is the execution of a series of jobs in a program on a computer without manual intervention (non-interactive). Strictly speaking, it is a processing mode: the execution of a series of programs each on a set or "batch" of inputs, rather than a single input (which would instead be a custom job).

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