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VONDÁL, J. JEGLA, Z. HÁJEK, J.
Originální název
Fired heaters: validation of design parameters based on numerical modelling
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
Fired heaters are used all over the World for refinery processes. Many of them are designed according the American Petroleum Institute Standard 560. Several facilities encounter significant deformation of tubes or other imperfection related to the tube wall heat load. This leads us to investigation of design parameters suggested by the API standard 560. The key design parameters are related to non-uniformity factors, which represent wall heat flux profile over the length and circumference of tube. Since the onsite investigation is almost impossible the numerical flow simulation is used. The present work reports parametric studies of tube deformations in a cylindrical fired heater (radially and tangentially deformed tubes). The results are reported in the form used by furnace designers, i.e. in terms of circumferential and longitudinal heat flux factor. This way, the work provides information on the effect that deformations of tubes during the lifetime of a furnace may have on heat flux non-uniformity. 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, CFD, Combustion, Wall heat flux, API
Autoři
VONDÁL, J.; JEGLA, Z.; HÁJEK, J.
Rok RIV
2015
Vydáno
7. 4. 2015
Nakladatel
CENERTEC
Místo
Rio Tinto, Portugal
ISBN
978-972-99309-7-3
Kniha
10th European Conference on Industrial Furnaces and Boilers
Strany od
1
Strany do
12
Strany počet
BibTex
@inproceedings{BUT115233, author="Jiří {Vondál} and Zdeněk {Jegla} and Jiří {Hájek}", title="Fired heaters: validation of design parameters based on numerical modelling", booktitle="10th European Conference on Industrial Furnaces and Boilers", year="2015", pages="1--12", publisher="CENERTEC", address="Rio Tinto, Portugal", isbn="978-972-99309-7-3" }