Journal Article10.1002/AIC.690150122
Structuring design computations
63
TL;DR: Algorithm I-R extends existing algorithms for finding the minimal sized blocks of units between which no recycle exists and uses the concept of indexing to order computations which evade algorithm II-R.
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Abstract: Process design computations are represented by directed graphs whose edges correspond to streams of information flow between computational units. Algorithm I-R extends existing algorithms for finding the minimal sized blocks of units between which no recycle exists. Algorithm II-R orders the sequence of unit computations within a block to minimize the number of recycle parameters. Algorithm III-R uses the concept of indexing to order computations which evade algorithm II-R. This work is directed toward the evolution of efficient programs for computer-aided process design.
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Citations
A survey of sparse matrix research
Iain S. Duff
- 01 Apr 1977
TL;DR: This paper surveys the state of the art in sparse matrix research in January 1976, and discusses the solution of sparse simultaneous linear equations, including the storage of such matrices and the effect of paging on sparse matrix algorithms.
278
Studies in the synthesis of control structures for chemical processes: Part II: Structural aspects and the synthesis of alternative feasible control schemes
TL;DR: In this article, the structural design of alternative regulatory control schemes to satisfy the posed objective is discussed, and modified versions are used to develop all the alternative feasible regulatory structures in an algorithmic fashion.
130
Analysis of a complex plant-steady state and transient behavior
TL;DR: To tackle process design problems of this complexity several chemical process and petroleum companies, consulting firms and academic institutions developed general integrated digital computer programs for steady-state and transient simulation provided frequently with process-oriented input description, automatic sequencing of computation, built-in unified physical data bank, provision for convergence and standard unit operation subroutines.
81
Decomposition strategy for designing flexible chemical plants
TL;DR: In this article, a decomposition technique based on a projection restriction strategy is proposed to exploit the block-diagonal structure in the constraints, and the extension of current equation ordering algorithms for adding systematically inequality constraints that become active.
References
The synthesis of system designs. II. Heuristic structuring
A. H. Masso,Dale F. Rudd +1 more
TL;DR: The use of heuristic structuring strategies in the development of computer programs for the synthesis of process designs is examined and the computer is able to learn the sequence of structuring decisions which leads toward the optimal process design.
163
The synthesis of system designs: I. Elementary decomposition theory
TL;DR: A system synthesis principle is proposed from which processes can be composed to perform an assigned task to reach the level of available technology.
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