Reduction of bubble coalescence by louver baffles in fluidized bed gasifier. (November 2022)

• Record Type: Journal Article
• Authors: Phuakpunk, Kiattikhoon; Chalermsinsuwan, Benjapon; Assabumrungrat, Suttichai
• Is Part Of: Energy reports. Volume 8(2022)Supplement 9
• Page Start: 96
• Page End: 106
• Publication Date: 2022-11
• Subjects: Louver baffle -- Bubble coalescence -- Hydrodynamics -- Fluidized bed gasifier; Power resources -- Periodicals; Energy industries -- Periodicals; Power resources; Periodicals; Electronic journals; 621.04205
• DOI: 10.1016/j.egyr.2022.06.098
• Languages: English
• ISSNs: 2352-4847

Abstract

Abstract: Bubble coalescence is a cause of decrease in gas–solid contact in a bubbling bed gasifier. This study used computational fluid dynamics (CFD) to explore a louver baffles arrangement that could reduce the bubble coalescence in the bubbling bed gasifier fueled by biomass. The results showed that 20 mm-gap baffles were not able to reduce the bubble coalescence while the 10 mm-gap baffles were effective to reduce the bubble size and slow down the bubble coalescence. The 10 mm-gap baffles also provided better gas–solid contact thorough the system. In addition, these baffles arrangement would steadily maintain full fluidization above the baffles.