Premium
Optimization of multistage recycle systems by direct search
Author(s) -
Luus Rein
Publication year - 1975
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450530211
Subject(s) - mathematical optimization , computer science , lagrange multiplier , mathematics
Optimal operation of chemical systems with recycle is considered. An optimization procedure, whereby the control variables are obtained by direct search, is developed. Suitability of this method for optimizing chemical engineering systems with recycle is tested by considering three systems of different complexity. Results close to the optimum were obtained in each case. For complex systems, however, care must be taken to ensure that global and not local optimum is obtained. Due to the ease of formulation and of programming, the proposed method provides an attractive alternative to the combined use of the gradient method and Lagrange multipliers.