Title: Computer experiments: application to the case of a recovery boiler

Authors: Nuno Costa, Ramos Pires, Paulo Fontes

Addresses: Escola Superior de Tecnologia de Setubal – Campus do IPS, Estefanilha, 2910 Setubal, Portugal. ' Escola Superior de Tecnologia de Setubal – Campus do IPS, Estefanilha, 2910 Setubal, Portugal. ' Escola Superior de Tecnologia de Setubal – Campus do IPS, Estefanilha, 2910 Setubal, Portugal

Abstract: Computer experiments are increasingly used to generate useful information about process and product, which could hardly be possible otherwise. This article explores the applicability of two-level fractional factorials for computer experiments with the aim at identifying the operating parameters of a black liquor recovery boiler, which have the strongest effect on the mass of carryover particles by flue gases. Six analysis methods, which can be easily used by practitioners for factor screening are reviewed and illustrated. The results show that scree plot is a practical and effective tool for screening by using deterministic computer models. Regarding the results, this study allows reducing the mass of carryover particles.

Keywords: computer experiments; experimental design; fractional factorial; recovery boilers; particles dragging; deterministic computer models; screening; unreplicated experiments; operating parameters; flue gases.

DOI: 10.1504/IJPQM.2009.024220

International Journal of Productivity and Quality Management, 2009 Vol.4 No.4, pp.418 - 436

Available online: 30 Mar 2009 *

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