Numerical investigation of heat and mass transfer processes in the combustion chamber of industrial power plant boiler. part 1. flow field, temperature distribution, chemical energy distribution

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F17%3A00338913" target="_blank" >RIV/68407700:21220/17:00338913 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.24132/acm.2017.395" target="_blank" >https://doi.org/10.24132/acm.2017.395</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.24132/acm.2017.395" target="_blank" >10.24132/acm.2017.395</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical investigation of heat and mass transfer processes in the combustion chamber of industrial power plant boiler. part 1. flow field, temperature distribution, chemical energy distribution

Popis výsledku v původním jazyce

In the present paper, the furnace chamber of the BKZ-160 boiler ofAlmaty TPP-3 (Kazakhstan) has been calculated. The thermal characteristics of the process were studied in the form of the distribution of temperature fields and chemical energy, and the aerodynamics of the combustion chamber was also calculated. The type of fuel, its elementary and fractional composition, exerts the greatest influence on the course of heat-mass exchange processes and aerodynamics. The computational experiment was carried out with two models of particle size distribution: a polydisperse fuel flame (the particle diameter varies from 10 to 120 µm) and monodisperse fuel flame (particle size identical and equal to dp= 60 µm). Based on the results of the computational experiments, the main regularities in the distribution of heat fluxes in the combustion chamber volume and flow aerodynamicswere obtained. It is shown that the greatest thermal load falls on the central region of the walls of the combustion chamber and the location of the burner devices, which is typical for both mono-and polydisperse fuel flames. The temperature data obtained as a result of the computational experiment showed better convergence with the empirical data obtained directly at TPP-3. Aerodynamics of the flow for the two selected models of particle size distribution has insignificant differences, but how they affect other characteristics of the process is one of the following tasks in view of the authors. It should be noted that the calculation of the polydisperse fuel flame takes much more calculation time.

Název v anglickém jazyce

Numerical investigation of heat and mass transfer processes in the combustion chamber of industrial power plant boiler. part 1. flow field, temperature distribution, chemical energy distribution

Popis výsledku anglicky

In the present paper, the furnace chamber of the BKZ-160 boiler ofAlmaty TPP-3 (Kazakhstan) has been calculated. The thermal characteristics of the process were studied in the form of the distribution of temperature fields and chemical energy, and the aerodynamics of the combustion chamber was also calculated. The type of fuel, its elementary and fractional composition, exerts the greatest influence on the course of heat-mass exchange processes and aerodynamics. The computational experiment was carried out with two models of particle size distribution: a polydisperse fuel flame (the particle diameter varies from 10 to 120 µm) and monodisperse fuel flame (particle size identical and equal to dp= 60 µm). Based on the results of the computational experiments, the main regularities in the distribution of heat fluxes in the combustion chamber volume and flow aerodynamicswere obtained. It is shown that the greatest thermal load falls on the central region of the walls of the combustion chamber and the location of the burner devices, which is typical for both mono-and polydisperse fuel flames. The temperature data obtained as a result of the computational experiment showed better convergence with the empirical data obtained directly at TPP-3. Aerodynamics of the flow for the two selected models of particle size distribution has insignificant differences, but how they affect other characteristics of the process is one of the following tasks in view of the authors. It should be noted that the calculation of the polydisperse fuel flame takes much more calculation time.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20303 - Thermodynamics

Projekt

<a href="/cs/project/TE01020036" target="_blank" >TE01020036: Pokročilé technologie pro výrobu tepla a elektřiny</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Applied and Computational Mechanics

ISSN

1802-680X

e-ISSN

—

Svazek periodika

11

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

14

Strana od-do

115-128

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85040911238