Search for dissertations about: "fluidization"
Showing result 1 - 5 of 41 swedish dissertations containing the word fluidization.
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1. Modelling and Simulation of Turbulent Gas-Solid Flows applied to Fluidization
Abstract : Modelling of gas-solid suspensions has been studied with emphasis on suitable closure laws. A study of characteristic time scales and energy dissipation mechanisms is made for the case of a simple shear flow. Applications of the modelling are presented in the form of simulation and validation of experiments in fluidized beds. READ MORE
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2. Solids flows in circulating fluidized beds: explorations of phenomena with applications to boilers
Abstract : The circulating fluidized bed (CFB), which is a technology that is commonly used in the heat and power sector, efficiently converts renewable and/or and low-grade solid fuels, such as biomass and biogenic waste fractions. CFB units serve also as a technological platform for carbon capture processes (combustion by oxy-firing or chemical looping), which are foreseen to play a key role in the transition of the energy system towards decreased atmospheric CO2 emissions. READ MORE
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3. Eulerian-Lagrangian Simulations of Fuel Mixing in Fluidized Beds
Abstract : Fluidized-bed technology has been commercially applied over several decades. However, there is still a lack of knowledge that can provide detailed understanding of the combustion process in the furnace. READ MORE
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4. Fuel Mixing in Gas-Solid Fluidized Beds: A Computational and Experimental Study
Abstract : Fluidized bed technology has been commercially applied over severaldecades. However there is still a lack of knowledge that can provide adetailed understanding of the combustion process in fluidized-bed furnaces. READ MORE
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5. Gas Mixing in a Circulating Fluidised Bed Boiler
Abstract : The present thesis is a study on the gas-mixing behaviour in a circulating fluidised bed (CFB) boiler. The aim is to describe how gas is spread in different regions of a CFB furnace and to explain variations in the mixing rate under different operating conditions. READ MORE