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Grantee Research Project Results

NCER Grantee Research Project Results

Genetic Algorithms in the Environmentally Conscious Design of a Softwood Kraft Pulp Bleach Plant

EPA Grant Number: U915199
Title: Genetic Algorithms in the Environmentally Conscious Design of a Softwood Kraft Pulp Bleach Plant
Investigators: Clayton, John M.
Institution: Georgia Institute of Technology
EPA Project Officer: Jones, Brandon
Project Period: September 1, 1997 through August 1, 2000
Project Amount: $102,000
RFA: STAR Graduate Fellowships (1997)
Research Category: Fellowship - Environmental Engineering , Academic Fellowships , Engineering and Environmental Chemistry

Description:

Objective:

The objective of this research project is to devise a general method for solving environmentally conscious industrial design problems that contain detailed, fundamental environmental process modeling. The general method will be based on a genetic algorithm (GA) coupled with cluster analysis.

Approach:

A GA will be used to solve this design problem. GAs are a class of sequential discrete random sampling search techniques that use the best performing old solutions to guide the search for newer, better solutions. Near-optimal solutions evolve over the course of the algorithm. GAs are known to accept nonlinear, discontinuous, or even differential objective and constraint functions. The results of the GA will be a set of near-optimal solutions to the design problem. Many of these solutions will have similar design parameter values, suggesting ranges of values that lead to near-optimal system performance. These ranges will be summarized by nearest neighbor cluster analysis on the set of solutions and by determining the multivariate mean and prediction interval for each cluster. Knowledge of the ranges of design parameter values that lead to near optimality can communicate the design freedom associated with optimal solutions. These characterizations also can serve as design spaces for more refined design problems.

Supplemental Keywords:

fellowship, design alternatives, genetic algorithm, GA, clustering algorithm, pollution prevention., RFA, Scientific Discipline, INTERNATIONAL COOPERATION, TREATMENT/CONTROL, Sustainable Industry/Business, Sustainable Environment, Technology, Technology for Sustainable Environment, Economics and Business, Ecology and Ecosystems, pollution prevention, cleaner production, environmentally conscious manufacturing, clean technologies, genetic algorithms, ecological design, alternative materials, computer generated alternatives, pollution prevention design, environmentally friendly green products, cluster analysis, Fraft pulp bleach plant, environmentally conscious design

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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.

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