Khudyakova G.I., Kozlov A.N., Svishchev D.A., Penzik M.V. Thermal analysis of wood fuel pyrolysis process // Journal of Physics: Conference Series. Vol.1128. No.1. ID: 012080. 2018. DOI: 10.1088/1742-6596/1128/1/012080 The paper presents the results of studies of conversion process on the laboratory pyrolysis reactor and the results are compared with data, obtained in model experiments by thermogravimetric analysis (TGA). The heating rates were compared in the pyrolysis reactor and in the laboratory...
Теги: bioconversion , chemical reactors , data handling , fuels , hydrodynamics , pyrolysis , reaction rates , thermoanalysis , conversion process , device operations , experimental modes , kinetic coefficient , modelLevin A.A., Kozlov A.N. Verification of the stage scheme of low-grade solid fuel gasification // Journal of Physics: Conference Series. Vol.1128. No.1. ID: 012071. 2018. DOI: 10.1088/1742-6596/1128/1/012071 This paper considers development of the model of wood pyrolysis in a screw reactor as the first stage of the multistage gasification process. To prevent clinkering of particles and thermal inhomogeneities, screw-type transportation is used to transport fuel. In order to describe kinetics of pyrolysis...
Теги: fuels , gasification , hydrodynamics , pyrolysis , thermoanalysis , comsol multiphysics , gasification process , inhomogeneities , kinetics of pyrolysis , operating parameters , pyrolysis process , transport fue... two approaches are proposed for analytical and numerical modeling of a critical two-phase flow in a pipe with a granular layer. An analytical approach is based on a polytrophic model, while a numerical approach was developed using a smoothed particle hydrodynamics method. A model of isenthalpic flow of vapor–water mixture in a fixed bed of solid particles is considered is this study. The mixture expansion process is considered to be polytropic. Similarly to the known problem of gas dynamics of a ...
Теги: analytical models , gas dynamics , hydrodynamics , mixtures , numerical methods , numerical models , analytical and numerical models , analytical approach , critical two-phase flows , expansion process , numeriLevin A.A., Kozlov A.N. Modelling of porous biomass pyrolysis in screw reactor // Journal of Physics: Conference Series. Vol.899. No.9. ID: 092008. 2017. DOI: 10.1088/1742-6596/899/9/092008 This paper is concerned with the development of a model of wood pyrolysis in a screw reactor as the first stage of the multistage gasification process. To prevent clinkering of particles and thermal inhomogeneities, screw-type transportation is used to transport fuel. In order to describe kinetics of pyrolysis...
Теги: fluid dynamics , heat transfer , hydrodynamics , screws , thermoanalysis , biomass pyrolysis , comsol multiphysics , gasification process , inhomogeneities , kinetics of pyrolysis , operating parameters , pyrolyLevin A.A., Safarov A.S., Khan P.V. Dynamics of the wall thermal boundary layer at the initial stage of the nucleate boiling // Journal of Physics: Conference Series. Vol.754. No.4. 2016. DOI: 10.1088/1742-6596/754/4/042010. This paper presents the results of the experimental study of the water nucleate boiling on the surface of the cylinder heater. We investigated the initial stage of formation of the thermal boundary layer with rise and departure of bubbles with the departure diameter of 50 μm...
Теги: fluid dynamics , hydrodynamics , nucleate boiling , bubble departure diameter , comsol multiphysics , departure diameter , field temperature , numerical calculation , predictive models , temperature growth , th
