Experimental investigation of aerodynamic behavior of wood chips in fluidized bed reactors as a sustainable biomass fuel

Abstract

Sustainable energy solutions are necessary in the current manufacturing advancements, where a need is being pressed upon biomaterial-based processes. This study examines the aerodynamics of wood chip biomass in fluidized-bed reactors, an essential aspect of sustainable biomass fuel technologies. Through experimental investigations, the current methodology determined the minimum fluidization rates for particles of four distinct sizes and compared these with theoretical prediction-based calculations. A novel laboratory setup featuring a Differential Pressure Feedback Exhaust gas recirculation (DPFE) sensor system was developed to measure these processes continuously to advance the enhancements of the precision and reliability of the findings. Key results include the successful adaptation of the Ergun equation for wood chips, herewith accommodating observed deviations in pressure drops within specific fluidization ranges. This adaptation, along with real-time data tracking of air phase changes using a multifunction measuring device, revealed critical insights into turbulence patterns and particle movement. These results and findings are consistent with theoretical models and underscore the potential to optimize wood chip use in fluidized-bed reactors. The study's results also contribute significantly to the field of renewable energy as they offer a validated methodological approach and practical modifications to existing theoretical models.

Keywords

• Biomass
• Wood waste
• Aerodynamic fluidized bed reactors
• Biofuel
• Sustainable energy