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Surrogate model for improved simulations of small-scale sludge incineration plants
ID
Žnidarčič, Anton
(
Avtor
),
ID
Seljak, Tine
(
Avtor
),
ID
Katrašnik, Tomaž
(
Avtor
)
PDF - Predstavitvena datoteka,
prenos
(2,41 MB)
MD5: 36A975CE2019F7E8A108639AAA0CDB16
URL - Izvorni URL, za dostop obiščite
https://www.sciencedirect.com/science/article/pii/S0016236120314186?via%3Dihub
Galerija slik
Izvleček
Although various modelling approaches exist for the simulation of solid fuel combustion, no specific model hasbeen developed for the accurate description of gas-phase combustion in small-scale combustion devices. This isparticularly limiting in scenarios when volatile-rich, complex and incompletely described solid fuels such assewage sludge are used. To address this issue, an accurate description of combustion from the fuel bed onwardsis required as well as an improved description of emitted volatiles. This paper introduces an innovative surro-gate-based combustion model that combines data on sludge devolatilisation and measured combustion char-acteristics to offer a new surrogate composition. The composition includes heavy hydrocarbon species to ac-curately describe combustion evolution. A sensitivity analysis revealed that H2contributes significantly tocombustion evolution, while the most robust surrogate composition is obtained when ethanol is used as a leadingrepresentative of heavier hydrocarbons. The model can be used to produce suitable surrogates for the mainsludge combustion interval, offering the required improvement in fuel descriptions and accuracy of simulationsin the vicinity of the fuel bed. Hence, this model is particularly suitable for the optimisation of temperature, heatrelease rate, and concentration field in combustion chambers with limited volumes.
Jezik:
Angleški jezik
Ključne besede:
sewage sludge
,
combustion
,
detailed reaction kinetics
,
volatiles
,
3D CFD numerical simulations
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
FS - Fakulteta za strojništvo
Leto izida:
2020
Št. strani:
Str. 1-15
Številčenje:
Vol. 280
PID:
20.500.12556/RUL-119391
UDK:
519.876.5:662.581(045)
ISSN pri članku:
0016-2361
DOI:
10.1016/j.fuel.2020.118422
COBISS.SI-ID:
25534979
Datum objave v RUL:
08.09.2020
Število ogledov:
1155
Število prenosov:
626
Metapodatki:
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Objavi na:
Sekundarni jezik
Jezik:
Slovenski jezik
Ključne besede:
odpadni mulj
,
zgorevanje
,
detajlna kemijska kinetika
,
volatili
,
3D CFD numerične simulacije
Projekti
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
P2-0401
Naslov:
Energetsko strojništvo
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
Z2-1862
Naslov:
Zgorevanje brez okoljskega odtisa za proizvodnjo zelene energije
Financer:
Drugi - Drug financer ali več financerjev
Naslov:
CelKrog
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