Using Self-Organizing Maps to Elucidate Patterns among Variables in Simulated Syngas Combustion

This study focused on demonstrating the use of a self-organizing map (SOM) algorithm to elucidate patterns among variables in simulated syngas combustion. The work was implemented in two stages: (1) modelling and simulation of syngas combustion under various feed composition and reactor temperature...

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Main Authors: Dhan Lord B. Fortela, Matthew Crawford, Alyssa DeLattre, Spencer Kowalski, Mary Lissard, Ashton Fremin, Wayne Sharp, Emmanuel Revellame, Rafael Hernandez, Mark Zappi
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Clean Technologies
Subjects:
Online Access:https://www.mdpi.com/2571-8797/2/2/11
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author Dhan Lord B. Fortela
Matthew Crawford
Alyssa DeLattre
Spencer Kowalski
Mary Lissard
Ashton Fremin
Wayne Sharp
Emmanuel Revellame
Rafael Hernandez
Mark Zappi
author_facet Dhan Lord B. Fortela
Matthew Crawford
Alyssa DeLattre
Spencer Kowalski
Mary Lissard
Ashton Fremin
Wayne Sharp
Emmanuel Revellame
Rafael Hernandez
Mark Zappi
author_sort Dhan Lord B. Fortela
collection DOAJ
description This study focused on demonstrating the use of a self-organizing map (SOM) algorithm to elucidate patterns among variables in simulated syngas combustion. The work was implemented in two stages: (1) modelling and simulation of syngas combustion under various feed composition and reactor temperature implemented in AspenPlus<sup>TM</sup> chemical process simulation software, and (2) pattern recognition among variables using SOM algorithm implemented in MATLAB. The varied levels of feed syngas composition and reactor temperature was randomly sampled from uniform distributions using the Morris screening technique creating four thousand eight hundred simulation conditions implemented in the process simulation which consequently produced a multivariate dataset used in the SOM analysis. Results show that cylindrical SOM topology models the dataset at lower quantization error and topographic error as compared to the rectangular SOM topology indicating suitability of the former for variables pattern elucidation for the simulated combustion. Nonetheless, the variables pattern between component planes from rectangular SOM (9 × 28 grid) and those from cylindrical SOM (9 × 28 grid) are almost similar, indicating that either rectangular or cylindrical architectures may be used for variables pattern analysis. The component planes of process variables from trained SOM are a convenient visualization of the trends across all process variables.
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spelling doaj.art-a21ce6db4fa04eb69978866ab629833e2023-11-19T22:53:59ZengMDPI AGClean Technologies2571-87972020-04-012215616910.3390/cleantechnol2020011Using Self-Organizing Maps to Elucidate Patterns among Variables in Simulated Syngas CombustionDhan Lord B. Fortela0Matthew Crawford1Alyssa DeLattre2Spencer Kowalski3Mary Lissard4Ashton Fremin5Wayne Sharp6Emmanuel Revellame7Rafael Hernandez8Mark Zappi9Department of Chemical Engineering, University of Louisiana, Lafayette, LA 70504, USADepartment of Chemical Engineering, University of Louisiana, Lafayette, LA 70504, USADepartment of Chemical Engineering, University of Louisiana, Lafayette, LA 70504, USADepartment of Chemical Engineering, University of Louisiana, Lafayette, LA 70504, USADepartment of Chemical Engineering, University of Louisiana, Lafayette, LA 70504, USADepartment of Chemical Engineering, University of Louisiana, Lafayette, LA 70504, USAEnergy Institute of Louisiana, University of Louisiana, Lafayette, LA 70504, USAEnergy Institute of Louisiana, University of Louisiana, Lafayette, LA 70504, USADepartment of Chemical Engineering, University of Louisiana, Lafayette, LA 70504, USADepartment of Chemical Engineering, University of Louisiana, Lafayette, LA 70504, USAThis study focused on demonstrating the use of a self-organizing map (SOM) algorithm to elucidate patterns among variables in simulated syngas combustion. The work was implemented in two stages: (1) modelling and simulation of syngas combustion under various feed composition and reactor temperature implemented in AspenPlus<sup>TM</sup> chemical process simulation software, and (2) pattern recognition among variables using SOM algorithm implemented in MATLAB. The varied levels of feed syngas composition and reactor temperature was randomly sampled from uniform distributions using the Morris screening technique creating four thousand eight hundred simulation conditions implemented in the process simulation which consequently produced a multivariate dataset used in the SOM analysis. Results show that cylindrical SOM topology models the dataset at lower quantization error and topographic error as compared to the rectangular SOM topology indicating suitability of the former for variables pattern elucidation for the simulated combustion. Nonetheless, the variables pattern between component planes from rectangular SOM (9 × 28 grid) and those from cylindrical SOM (9 × 28 grid) are almost similar, indicating that either rectangular or cylindrical architectures may be used for variables pattern analysis. The component planes of process variables from trained SOM are a convenient visualization of the trends across all process variables.https://www.mdpi.com/2571-8797/2/2/11chemical process simulationsyngasmachine learningSOM
spellingShingle Dhan Lord B. Fortela
Matthew Crawford
Alyssa DeLattre
Spencer Kowalski
Mary Lissard
Ashton Fremin
Wayne Sharp
Emmanuel Revellame
Rafael Hernandez
Mark Zappi
Using Self-Organizing Maps to Elucidate Patterns among Variables in Simulated Syngas Combustion
Clean Technologies
chemical process simulation
syngas
machine learning
SOM
title Using Self-Organizing Maps to Elucidate Patterns among Variables in Simulated Syngas Combustion
title_full Using Self-Organizing Maps to Elucidate Patterns among Variables in Simulated Syngas Combustion
title_fullStr Using Self-Organizing Maps to Elucidate Patterns among Variables in Simulated Syngas Combustion
title_full_unstemmed Using Self-Organizing Maps to Elucidate Patterns among Variables in Simulated Syngas Combustion
title_short Using Self-Organizing Maps to Elucidate Patterns among Variables in Simulated Syngas Combustion
title_sort using self organizing maps to elucidate patterns among variables in simulated syngas combustion
topic chemical process simulation
syngas
machine learning
SOM
url https://www.mdpi.com/2571-8797/2/2/11
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