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Analysis of parallelism in modular flowsheet calculations

✍ Scribed by E. H. Chimowitz; R. Z. Bielinis

Publisher
American Institute of Chemical Engineers
Year
1987
Tongue
English
Weight
1005 KB
Volume
33
Category
Article
ISSN
0001-1541

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✦ Synopsis

An analysis of parallelism for modular process flowsheet calculations is given. The central idea is to examine various algorithms that allow one to decouple and decentralize flowsheet calculations for computation in a multiprocessor environment. Specific algorithms are evaluated which make use of quasi-Newton updates to converge the flowsheet equations. From the analysis presented and example problems solved, it is clear that parallel processing can be used to enhance the computational speed of modular flowsheet calculations. In particular, various formulations of the simultaneous modular approach are analyzed to show how parallelism may be taken advantage of in flowsheet solutions.

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