Particulate Matter Emission Factor Determination from Small-Scale Biomass Combustion Heating Appliances

Abstract

Small-scale biomass combustion heating appliances are widely used for residential and rural energy applications; however, they are significant sources of particulate matter emissions that contribute to air pollution and adverse health effects. This study investigates the determination of particulate matter emission factors from small-scale biomass combustion systems under varying operating and fuel conditions. The research focuses on evaluating the influence of fuel type, moisture content, combustion temperature, airflow rate, combustion efficiency, and appliance design on particulate matter generation and emission characteristics. Experimental measurements were conducted using controlled combustion tests and emission monitoring techniques to quantify particulate emissions and establish representative emission factors for different biomass fuels and operating modes. Results demonstrated that combustion conditions and fuel properties strongly affect particulate matter formation, with incomplete combustion and high fuel moisture content leading to elevated emission levels. Optimized airflow and combustion temperature improved fuel oxidation and significantly reduced particulate emissions. The study further revealed that appliance design and combustion chamber configuration play important roles in determining emission performance and combustion stability. Particle characterization analyses indicated variations in particle size distribution and composition depending on fuel characteristics and combustion efficiency. Comparative assessment with conventional heating systems showed that advanced combustion control strategies can substantially lower particulate matter emissions from biomass appliances. The findings provide valuable data for emission inventory development, environmental impact assessment, and regulatory compliance in biomass energy utilization. Furthermore, the study supports the development of cleaner biomass combustion technologies and sustainable residential heating practices aimed at reducing atmospheric pollution and improving air quality management.