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JEGLA, Z. HÁJEK, J. VONDÁL, J.
Originální název
Numerical Analysis of Heat Transfer in Radiant Section of Fired Heater with Realistic Imperfect Geometry of Tube Coil
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
Complex numerical computations are performed for vertical cylindrical fired heater operated in crude oil atmospheric distillation unit to analyse the distribution of heat flux on the tubes of radiant section. The numerical model describes flow, gas combustion and radiative heat transfer inside the radiation section of the fired heater. Analysis of variations of heat flux on circumferential and longitudinal distribution on individual tube walls is executed comparing case of ideal (originally designed) tube coil geometry and tube coil containing typical real geometry imperfections (developed during years of operation). Results of heat transfer analysis confirm and quantify the significant effects of non-uniform heat flux distribution on individual radiant tubes negatively sharpened by geometry imperfections of tube coil. It is recognized, that fired heater design standards recommendations invoked in 1D design calculations of fired heaters are significantly underestimating real heat flux variability.
Klíčová slova
fired heater, numerical analysis, heat transfer, radiant section
Autoři
JEGLA, Z.; HÁJEK, J.; VONDÁL, J.
Rok RIV
2014
Vydáno
23. 8. 2014
Nakladatel
Aidic Servizi S.r.l.
Místo
Milan, Italy
ISBN
978-88-95608-30-3
Kniha
Proceedings of the 17th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction PRES 2014
ISSN
2283-9216
Periodikum
Chemical Engineering Transactions
Ročník
39
Stát
Italská republika
Strany od
889
Strany do
894
Strany počet
6
BibTex
@inproceedings{BUT109158, author="Zdeněk {Jegla} and Jiří {Hájek} and Jiří {Vondál}", title="Numerical Analysis of Heat Transfer in Radiant Section of Fired Heater with Realistic Imperfect Geometry of Tube Coil", booktitle="Proceedings of the 17th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction PRES 2014", year="2014", journal="Chemical Engineering Transactions", volume="39", pages="889--894", publisher="Aidic Servizi S.r.l.", address="Milan, Italy", doi="10.3303/CET1439149", isbn="978-88-95608-30-3", issn="2283-9216" }