Аналіз спалювання низькоякісного палива у киплячому шарі

Abstract

The combustion of low-grade fuels in fluidized bed technology represents a promising approach for improving energy utilization while reducing emissions. Low- grade fuels, such as lignite, biomass residues, and industrial waste, often have high moisture and ash content, making their combustion less efficient in conventional systems. Fluidized bed combustion (FBC) offers a solution by ensuring improved fuel- air mixing, extended particle residence time, and uniform temperature distribution, which enhances combustion efficiency. This study analyzes the thermodynamic and combustion characteristics of low-grade fuels in a fluidized bed, focusing on heat transfer mechanisms, fuel conversion efficiency, and emission control. The impact of fluidization velocity, bed material properties, and excess air ratio on combustion performance is examined. The results contribute to optimizing fluidized bed operation for better fuel utilization, lower environmental impact, and enhanced energy recovery from low-quality fuels.