Sökning: "Bubbling fluidized bed"
Visar resultat 1 - 5 av 31 avhandlingar innehållade orden Bubbling fluidized bed.
1. Fluid Dynamics of the Bottom Bed of Circulating Fluidized Bed Boilers
Sammanfattning : The fluid dynamic conditions in the furnace of a fluidized bed boiler influence the combustion and the production of harmful emissions. A substantial amount of the bed material in a circulating fluidized bed (CFB) boiler is present as a dense bubbling bottom bed. LÄS MER
2. Layer Formation on Bed Particles during Fluidized Bed Combustion and Gasification of Woody Biomass
Sammanfattning : Although more than a hundred papers dealing with the agglomeration problem in combustion and gasification of biomass can be found in the literature, very few studies focusing on the bed particle layer formation process in fluidized bed combustion (FBC) and fluidized bed gasification (FBG) can be found. With increased knowledge of the bed particle layer formation process — i. LÄS MER
3. Packed-Fluidized Bed Reactors – Batch Experiments and Fundamental Modeling with Random Metal Packings
Sammanfattning : The aim of this work is to investigate the effect of random packings on heat and mass transfer phenomena, when applied in bubbling fluidized beds. For this purpose, first, the heat transfer coefficient to a horizontal tube submerged in a fluidized bed containing various types of random packings was investigated. LÄS MER
4. Fluidized bed combustion - modeling and mixing
Sammanfattning : First demonstrated on industrial scale in 1976, fluidized bed combustion (FBC) rapidly became an established technology for solid fuel combustion with a currentinstalled capacity of about 30 GWe and power plants ranging from 10 to 460 MWe.The widespread use of the FBC technology both under so-called circulating and bubbling conditions (i.e. LÄS MER
5. Fluid Dynamics of a Wurster-type Fluidized Bed - A Numerical and Experimental Study
Sammanfattning : The fluid dynamics of a Wurster bed, a fluidized bed used in the pharmaceutical industry for the coating of small particles or pellets, is investigated numerically and experimentally. The main objective of the thesis is to obtain greater knowledge of the flow properties in the Wurster bed. LÄS MER