Effect of Hydrodynamic Conditions on Emissions of NOx, SO2, and CO from Co-Combustion of Wheat Straw and Coal Under Fast Fluidized Bed Condition

The chapter presents validation of the selection criteria for the construction of the granulation and drying equipment. New forms of the organization of the flows motion in a fluidized bed regime are offered. The steering mechanisms for the motion and the residence time of the disperse phase in a workspace of the apparatus are described. The results of the simulation of the hydrodynamic conditions for the motion of the directional gas flow and the two-phase aerodisperse system are presented. Based on the simulation results, various constructions of the apparatus components are offered. The well-minded construction of the workspace of the apparatus helps to achieve optimized consumption of the heating agent and the minimal residence time of the disperse phase in the apparatus. The computer simulation allowed the authors to offer an algorithm of the optimization calculations of the granulation and drying equipment. New constructive solutions to perform the granulation and the drying processes in the devices with a directional fluidized bed are offered.

Download Full-text

Effects on Ash Chemistry when Co-firing Municipal Sewage Sludge and Wheat Straw in a Fluidized Bed: Influence on the Ash Chemistry by Fuel Mixing

Energy & Fuels ◽

10.1021/ef401197q ◽

2013 ◽

Vol 27 (10) ◽

pp. 5725-5732 ◽

Cited By ~ 29

Author(s):

Nils Skoglund ◽

Alejandro Grimm ◽

Marcus Öhman ◽

Dan Boström

Keyword(s):

Sewage Sludge ◽

Wheat Straw ◽

Fluidized Bed ◽

Municipal Sewage ◽

Municipal Sewage Sludge ◽

Fuel Mixing

Download Full-text

Hydrogen-rich syngas produced from co-gasification of municipal solid waste and wheat straw in an oxygen-enriched air fluidized bed

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2021.02.137 ◽

2021 ◽

Author(s):

Jun Zhao ◽

Dan Xie ◽

Shuzhong Wang ◽

Rui Zhang ◽

Zhiqiang Wu ◽

...

Keyword(s):

Municipal Solid Waste ◽

Solid Waste ◽

Wheat Straw ◽

Fluidized Bed

Download Full-text

Development of Software for Calculating of the Vortex Fluidized Bed Granulator

Journal of Software Engineering Theories and Practices ◽

10.21174/josetap.v2i1.61 ◽

2017 ◽

Vol 2 (1) ◽

pp. 1-10

Author(s):

Artem Artyukhov ◽

Viktor Obodiak ◽

Pavlo Boiko

Keyword(s):

Mathematical Model ◽

Fluidized Bed ◽

Residence Time ◽

Vortex Flow ◽

Hydrodynamic Conditions ◽

Kinetic Characteristics ◽

Separation Processes ◽

Granulation Process ◽

Optimization Calculation ◽

Kinetics Of

The article is devoted to the development of software for calculating the hydrodynamic conditions and kinetic characteristics of granulation process in vortex devices. In the basis software Vortex Granulator© and Classification in vortex flow© original mathematical model for calculating the flow rate of gas and granules classification and separation processes of granules in a vortex granulator, kinetics of granules heating and removing moisture from the granules was put. The structure of software and algorithm of their work is shown. In the article, an algorithm for calculation of the granulation process in the vortex granulator using the developed software is shown. Software designed in JavaFx platform. Vortex Granulator© and Classification in vortex flow© allow to conduct an optimization calculation of vortex granulator according the criteria of minimum required residence time of granules in device workspace.

Download Full-text