CHEN 4401W Lecture Notes - Lecture 7: Plat, Tral
27 Dec 2015
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12:17 pm next exams: 2 fe exam questions: material and energy balances, fluid mechanics, heat transfer. Doe = a systematic series of tests in which purposeful changes. Study 1 factor at a time (ofat), holding all other variables constant. -one factor can make other factor more important or less important. Study multiple factors changing at once (parallel processing) Estimate factors well; this implies estimating effects from averages. Obtain the most info in fewest # runs. Estimate each factor effect independent of the existence of other factor effects. Run all high/low combinations of 2 (or more) factors. Chen4401w_unitoperations2 page 2 can subtract 14 from 23 to get the interactions to do it for 23, just make larger table. 1 factor needs 2 extra runs (hidden replications) for 22 and yet still does not cover the high a high b corner for 23, are missing half the combos --> gets worse.
