Comparative study of machine learning methods integrated with genetic algorithm and particle swarm optimization for bio-char yield prediction.

Journal: Bioresource technology
Published Date:

Abstract

In this study, Machine learning (ML) models integrated with genetic algorithm (GA) and particle swarm optimization (PSO) have been developed to predict, evaluate, and analyze biochar yield using biomass properties and process operating conditions. Comparative study of different ML algorithms integrated with GA and PSO were performed to improve the ML models architecture and parameters selection. The results proposed that Ensembled Learning Tree (ELT-PSO) model outperformed all other models and is favored for biochar yield prediction (R = 0.99, RMSE = 2.33). The partial dependence plots (PDPs) analysis shows the potential effects of each influencing parameter impact on the biochar yield and as well as shows that how these factors will interact during the pyrolysis process. A user-friendly software was developed based on the ELT-PSO model to avoid extensive and expensive experimentations without requiring considerable ML understanding. Difference recorded by GUI was less than 2% with experimental yield.

Authors

  • Zeeshan Ul Haq
    Laboratory of Alternative Fuel and Sustainability, School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad 44000, Pakistan.
  • Hafeez Ullah
    Laboratory of Alternative Fuel and Sustainability, School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad 44000, Pakistan.
  • Muhammad Nouman Aslam Khan
    Laboratory of Alternative Fuel and Sustainability, School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad 44000, Pakistan. Electronic address: mnouman@scme.nust.edu.pk.
  • Salman Raza Naqvi
    School of Chemical & Materials Engineering, National University of Sciences & Technology, H-12, Islamabad 44000, Pakistan.
  • Abdul Ahad
    Laboratory of Alternative Fuel and Sustainability, School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad 44000, Pakistan.
  • Nor Aishah Saidina Amin
    Chemical Reaction Engineering Group (CREG), School of Chemical & Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia (UTM), 81310 Johor Bahru, Malaysia.