A Stagewise Algorithm for Multicomponent Multistage Batch Distillation Calculation

Autor:	Seung-Tae Koh, Hiroki Goto, Zhi Cai Yang, Hideki Mori, Iwao Akiba, Tsutomu Aragaki
Rok vydání:	1995
Předmět:	Batch distillation Computer simulation Computer science General Chemical Engineering General Chemistry Backward Euler method Numerical integration Euler equations law.invention symbols.namesake law Convergence (routing) symbols Central processing unit Algorithm Distillation
Zdroj:	JOURNAL OF CHEMICAL ENGINEERING OF JAPAN. 28:576-581
ISSN:	1881-1299 0021-9592
DOI:	10.1252/jcej.28.576
Popis:	A stagewise algorithm is proposed for the solution of multicomponent multistage batch distillation problems. In order to make the algorithm more precise and flexible, a generalized implicit Euler equation is implemented for numerical integration of the process variables on each stage at succeeding time steps. An overall normalized θ method is also employed to accelerate convergence for each time step. The relative performance of the proposed method compared with the Runge-Kutta method is shown using a numerical example; the CPU time can be decreased by up to 1/300. Comparison of the simulation results with the experiment suggests the adequacy of the proposed method.
Databáze:	OpenAIRE
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