Abstract
A methodology for machine layout of process streams involving multiple directional changes given the equipment layout and stream connection information is formulated. Also considered are the drawing of these streams and of various process equipment symbols as well as the layout and drawing of peripheral flowsheet symbols and messages. The key concepts involved are the use of a coded grid representation of the drawing space, a structural classification of stream configurations, efficient constructions for generating stream paths, and the formulation of a ranking of stream paths. A program package implementing the methodology which includes a simple yet flexible data structure for generating and storing equipment symbols is discussed and example flowsheet are given.
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