Selaus tekijän mukaan kokoelmassa "Hyppänen, Timo"Tieteelliset julkaisut
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Effects of heterogeneous flow on carbon conversion in gas-solid circulating fluidized beds
(Elsevier, 17.07.2020)Gas-solid fluidized beds have heterogeneous flow structures, which affect the reactions due to uneven distribution and limited mixing of reactants. Some model approaches neglect these heterogeneous structures and use a ... -
Improved banded method for spectral thermal radiation in participating media with spectrally dependent wall emittance
(Elsevier Ltd., 17.11.2018)To develop an efficient and practical spectral radiation model for CFD simulations, a banded approach is proposed for a mixture of carbon dioxide and water vapor in varying thermodynamic states. Using a previously reported ... -
Modeling of industrial-scale sorption enhanced gasification process: One-dimensional simulations for the operation of coupled reactor system
(Elsevier, 23.03.2021)Sorption enhanced gasification (SEG) is a promising technology for producing gas derived from renewable feedstock to be used in biofuel synthesis processes. As a response to the growing need for renewable fuels, an SEG ... -
Modelling of indirect steam gasification in circulating fluidized bed reactors
(Elsevier, 12.11.2017)The indirect steam gasification in circulating fluidized bed reactors was studied by modelling. The object of study was a coupled 12 MWth gasifier-combustor system, which was fired by woody biomass. The heat for the ... -
Numerical modelling of sorption-enhanced gasification: Development of a fuel decomposition model
(Elsevier, 16.12.2020)Sorption-enhanced gasification (SEG) is a promising technology for producing renewable feedstock gas to be used in biofuel synthesis processes, especially in dimethyl ether (DME) synthesis. To adopt the technology on a ... -
Practical characterization and modeling method for macroscopic gas–solid flow in circulating fluidized bed
(Elsevier, 21.11.2020)Fluidized beds are common in the energy and chemical industries because they provide a good environment for heterogeneous reactions owing to the combination of mixing and multiphase flow hydrodynamics. The hydrodynamics ... -
Simulation of a sorbent enhanced gasification pilot reactor and validation of reactor model
(Elsevier, 27.11.2019)Sorption enhanced gasification (SEG) is a promising technology for production of a renewable feedstock gas for biofuel synthesis processes. The technology has been previously demonstrated at pilot scale. Scaling of the ... -
Study on properties related to energy recovery from waste streams in Finland
(Taylor & Francis, 01.09.2017)Current paper presents the results of proximate analysis and heating value measurements for several different municipal solid waste (paper, cardboard, waste wood, textile, juice box carton and sewage sludge) and industrial ...
