Detail publikace
Vliv velikostního spektra kapek vápenné suspenze na účinnosti polosuchého odsíření spalin.
KATOLICKÝ, J. JÍCHA, M.
Český název
Vliv velikostního spektra kapek vápenné suspenze na účinnosti polosuchého odsíření spalin.
Anglický název
Influence of the lime slurry droplet spectrum on the efficiency of semi-dry flue gas desulfurization
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
en
Originální abstrakt
A numerical model based on computational fluid dynamics is presented to predict the efficiency of a semi-dry flue gas desulfurization process. The Euler-Lagrange particle tracking method is used to predict both evaporation and mass transfer between the flue gas and the lime slurry droplets. The overall desulfurization process is split into two periods, i.e. the constant-rate and the falling-rate period, during which the fundamental chemical reaction between sulfur dioxide and calcium hydroxide is modeled. The absorption efficiency is calculated for different spray characteristics, taking into account different size spectra of the lime slurry droplets characterized by different standard deviations for a constant mass mean diameter d50 of 25. The results are compared with published experiments and show excellent agreement as well as a significant role of the spray characteristics in the FGD efficiency.
Český abstrakt
V příspěvku je prezentován numerický CFD model umožňující výpočet účinnost procesu polosuchého odsíření spalin. K výpočtu přenosu tepla a hmoty mezi spalinami a kapičkami vápenné suspenze je použit Euler-Lagrangeuv přístup. Proces odsíření je rozdělen do dvou fází, tzv. „constant-rate“ a „falling-rate“, během kterých je modelována základní chemická reakce mezi oxidem siřičitým a hydroxidem vápenatým.
Anglický abstrakt
A numerical model based on computational fluid dynamics is presented to predict the efficiency of a semi-dry flue gas desulfurization process. The Euler-Lagrange particle tracking method is used to predict both evaporation and mass transfer between the flue gas and the lime slurry droplets. The overall desulfurization process is split into two periods, i.e. the constant-rate and the falling-rate period, during which the fundamental chemical reaction between sulfur dioxide and calcium hydroxide is modeled. The absorption efficiency is calculated for different spray characteristics, taking into account different size spectra of the lime slurry droplets characterized by different standard deviations for a constant mass mean diameter d50 of 25. The results are compared with published experiments and show excellent agreement as well as a significant role of the spray characteristics in the FGD efficiency.
Klíčová slova česky
odsíření
Klíčová slova anglicky
desulphurization, simulation
Rok RIV
2013
Vydáno
10.01.2013
ISSN
0930-7516
Ročník
36
Číslo
1
Strany od–do
156–166
Počet stran
11
BIBTEX
@article{BUT97369,
author="Jaroslav {Katolický} and Miroslav {Jícha},
title="Influence of the lime slurry droplet spectrum on the efficiency of semi-dry flue gas desulfurization",
year="2013",
volume="36",
number="1",
month="January",
pages="156--166",
issn="0930-7516"
}