Publication detail

CFD analysis of tube circumference heat flux variation in radiant section of fired heater

HÁJEK, J. JEGLA, Z. VONDÁL, J.

Original Title

CFD analysis of tube circumference heat flux variation in radiant section of fired heater

Type

conference paper

Language

English

Original Abstract

Tubular fired heater in vertical cylindrical arrangement operated in crude oil atmospheric distillation unit is simulated numerically to analyse the circumference heat flux variation and distribution of thermal loading on the individual tubes. The complex numerical model describes flow, gas combustion and radiative heat transfer inside the radiation section of the fired heater. Special attention is focused on the degree of non-uniformity of circumferential distribution of heat flux on tube walls. Obtained results show that assumptions invoked in 1D design calculations of fired heaters are significantly underestimating heat flux variability.

Keywords

Heat Transfer, Tube Circumference Heat Flux Variation, Fired Heater

Authors

HÁJEK, J.; JEGLA, Z.; VONDÁL, J.

RIV year

2014

Released

2. 6. 2014

Publisher

Giannini Editore

Location

Napoli, Italy

ISBN

978-88-7431-727-1

Book

Third International Conference on Computational Methods for Thermal Problems

ISBN

2305-5995

Periodical

ThermaComp proceedings

Year of study

3

Number

6

State

Republic of Italy

Pages from

237

Pages to

240

Pages count

4

URL

http://www.thermacomp.com/uploads/Proceedings_ThermaComp2014_website.pdf

BibTex

@inproceedings{BUT108113,
  author="Jiří {Hájek} and Zdeněk {Jegla} and Jiří {Vondál}",
  title="CFD analysis of tube circumference heat flux variation in radiant section of fired heater",
  booktitle="Third International Conference on Computational Methods for Thermal Problems",
  year="2014",
  journal="ThermaComp proceedings",
  volume="3",
  number="6",
  pages="237--240",
  publisher="Giannini Editore",
  address="Napoli, Italy",
  isbn="978-88-7431-727-1",
  issn="2305-5995",
  url="http://www.thermacomp.com/uploads/Proceedings_ThermaComp2014_website.pdf"
}