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Verification of the heat transfer model for screw reactor

... scaling of the reactor. In terms of design the pyrolyzer represents a recuperative heat exchanger where a mix of stack and recirculation gases is considered as a heat carrier. To prevent sintering of particles the screw transportation of fuel is used. The Comsol Multiphysics Software is used as a simulation environment. Heat exchange in the process of pyrolysis is simulated considering physical properties (porosity, permeability, etc.) of the medium. The constructed calculated mesh consisted of 604 thousand ...

Теги: charcoal , computer software , heat transfer , momentum transfer , pyrolysis , screws , sintering , comprehensive research , comsol multiphysics , full-scale experiment , heat transfer model , operational parame
Раздел: ИСЭМ СО РАН
Verification of the stage scheme of low-grade solid fuel gasification

... pyrolysis and transport of volatiles within the wood particles and their transition to the gas phase, we carried out the studies using a complex of synchronous thermal analysis. A detailed numerical modeling of pyrolyzer was performed with the use of Comsol Multiphysics Software, which enables optimizing the design and operating parameters of the pyrolysis process in a screw reactor. © 2018 Institute of Physics Publishing. All rights reserved.

Теги: fuels , gasification , hydrodynamics , pyrolysis , thermoanalysis , comsol multiphysics , gasification process , inhomogeneities , kinetics of pyrolysis , operating parameters , pyrolysis process , transport fue
Раздел: ИСЭМ СО РАН
Modelling of porous biomass pyrolysis in screw reactor

... kinetics of pyrolysis and transport of volatiles within the wood particles and their transition to the gas phase we carried out the studies using a complex of synchronous thermal analysis. A detailed numerical modeling of pyrolyzer was performed with the Comsol Multiphysics software which makes it possible to optimize the design and operating parameters of the pyrolysis process in a screw reactor. © Published under licence by IOP Publishing Ltd. нет

Теги: fluid dynamics , heat transfer , hydrodynamics , screws , thermoanalysis , biomass pyrolysis , comsol multiphysics , gasification process , inhomogeneities , kinetics of pyrolysis , operating parameters , pyroly
Раздел: ИСЭМ СО РАН
Dynamics of the wall thermal boundary layer at the initial stage of the nucleate boiling

... initial stage of formation of the thermal boundary layer with rise and departure of bubbles with the departure diameter of 50 μm. To build the field temperature at the moment prior to the start of boiling, we used a numerical model implemented in the COMSOL multiphysics software. The experimental data on bubbles dynamics was compared to the numerical calculation of the temperature, and the relationship between the temperature growth rate, the bubble departure diameter and the Jacob number was established....

Теги: fluid dynamics , hydrodynamics , nucleate boiling , bubble departure diameter , comsol multiphysics , departure diameter , field temperature , numerical calculation , predictive models , temperature growth , th
Раздел: ИСЭМ СО РАН


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