Numerical study of Pavlovskiy coal pulverized combustion in the furnace of BKZ–210–140 steam boiler

2016

MATEC Web Conf.

This paper presents the application of numerical calculation of a hybrid Euler-Lagrange approach to model the gas-solid flow combined with a combustion process in the CFB boiler that has been resolved by applying the ANSYS FLUENT 14.0. In this work, the numerical modelling of furnace processes at various speeds of airflow supply from below was estimated. For the design speed adopted values of 0.5, 1.5, 2.5 and 5 m/s. The research object is the combustion chamber of boiler unit with CFB, with steam capacity of 230 t/h.

Section: Mathematical Modelmentioning

confidence: 99%

Numerical methods application to study processes in the CFB boilers combustion chambers

Кокшарев

2016

MATEC Web Conf.

“…Figure 1 presents the results of a numerical calculation model of the boiler furnace with circulating fluidized bed using a software package FIRE 3D [3,4,6]. In the lower part of the furnace there are maximum values of the velocities.…”

Section: Mathematical Modelmentioning

confidence: 99%

Research of integral parameters for furnaces of a circulating fluidized bed

2015

EPJ Web of Conferences

Abstract. Modern society poses several energy problems. Improving the efficiency and reliability of power equipment and reduce the impact on the environment. The paper presents the promising technology of superheated steam using different coals. The model of the furnace with a circulating fluidized bed and numerical simulation results of gas dynamic processes using application FIRE 3D. The analysis of aerodynamics and the distribution of the dispersed phase adjustment of the furnace.

“…Estimated fuel consumption is 18.1 kg/s, grinding fuel fineness is 50%, air ratio -1.2. Numerical studies were performed by use of FIRE 3D software package which implements the Euler-Lagrangian method of describing airthermochemical processes in gas-dispersion atmospheres [3]. Heat transfer and combustion in the gas phase are presented on the basis of Euler description method.…”

Section: Modelingmentioning

confidence: 99%

Application of Numerical Analysis for Physical and Chemical Combustion Processes in Design of Boiler Units

Заворин

Vorontsova

et al. 2015

AMM

It is common knowledge that theoretical approaches do not allow conducting the objective assessment of the reliability and efficiency of the boiler equipment operation, hence, application of numerical approaches is introduced in the paper. There is the urgent need to assess reliability and efficient operation of boilers at the design stage. The analysis of the temperature level, gas dynamics in the combustion chamber of the boiler and the conclusion about the reliability and efficiency of the designed boiler operation are based on the numerical research.