Mathematical model for a single screw ash cooler of a circulating fluidized bed boiler

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F22%3A10249270" target="_blank" >RIV/61989100:27230/22:10249270 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0032591021009268?pes=vor" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0032591021009268?pes=vor</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.powtec.2021.10.044" target="_blank" >10.1016/j.powtec.2021.10.044</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Mathematical model for a single screw ash cooler of a circulating fluidized bed boiler

Popis výsledku v původním jazyce

The paper presents the mathematical model of the heat transfer processes for a single screw ash cooler (SSAC) working with a circulating fluidized bed (CFB) boiler. The validation of the model is based on experimental measurements made on a 230 MWe power unit. The analysis of measurement data from two bottom ash coolers showed that the correct prediction of the outlet temperatures of ash and cooling water requires the determination of their individual ash filling characteristics (i.e. coolers). The numerical results confirm that the mixing model proposed by Schlünder correctly predicts the heat transfer coefficient for ash. The described mathematical model can monitor the operating conditions of the single screw ash cooler. It enables the determination of the optimal volumetric flow rates of the cooling water in order to get its highest possible outlet temperature, and then for this water to be used, e.g. for sanitary purposes. (C) 2021 The Authors

Název v anglickém jazyce

Mathematical model for a single screw ash cooler of a circulating fluidized bed boiler

Popis výsledku anglicky

The paper presents the mathematical model of the heat transfer processes for a single screw ash cooler (SSAC) working with a circulating fluidized bed (CFB) boiler. The validation of the model is based on experimental measurements made on a 230 MWe power unit. The analysis of measurement data from two bottom ash coolers showed that the correct prediction of the outlet temperatures of ash and cooling water requires the determination of their individual ash filling characteristics (i.e. coolers). The numerical results confirm that the mixing model proposed by Schlünder correctly predicts the heat transfer coefficient for ash. The described mathematical model can monitor the operating conditions of the single screw ash cooler. It enables the determination of the optimal volumetric flow rates of the cooling water in order to get its highest possible outlet temperature, and then for this water to be used, e.g. for sanitary purposes. (C) 2021 The Authors

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20303 - Thermodynamics

Projekt

—

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Powder technology

ISSN

0032-5910

e-ISSN

1873-328X

Svazek periodika

396

Číslo periodika v rámci svazku

Volume 396

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

50-58

Kód UT WoS článku

000820121800008

EID výsledku v databázi Scopus

2-s2.0-85118505440