A new arrangement of side-wall burners of an industrial furnace was studied by three-dimensional computational fluid dynamics (CFD) simulation. This simulation was conducted on ten calculation domain. Finite rate/eddy dissipation model was used as a combustion model. Discrete ordinate model (DOM) was considered as radiation model. Furthermore, weighted sum of gray gas model (WSGGM) was used to calculate radiative gas properties. Tube skin temperature and heat flux profiles were obtained by solving mass, momentum, and energy equations. Moreover, fuel rate variation was considered as an effective parameter. A base flow rate of fuel () was assigned and different ratios (0.25 , 0.5 , 2 , and 4 ) were assigned to investigate the heat distribution over the furnace. Resulted temperature and heat profiles were obtained in nonuniform mode using the proposed wall burner arrangement. According to the results, despite increased heat transfer coefficient of about 34% for –4 , temperature profile for this rate is too high and is harmful for tube metallurgy. Also, the proper range for fuel rate variation was determined as 0.5–2 . In this range, heat transfer coefficient and Nusselt number for –2 were increased by 21% and for –0.25 were decreased by about 28%.
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December 2017
Research-Article
Investigating the Effect of Fuel Rate Variation in an Industrial Thermal Cracking Furnace With Alternative Arrangement of Wall Burners Using Computational Fluid Dynamics Simulation
Hossein Mohammad Ghasemi,
Hossein Mohammad Ghasemi
Faculty of Caspian,
College of Engineering,
University of Tehran,
P.O. Box 43841-119,
Rezvanshahr 43861-56387, Iran
College of Engineering,
University of Tehran,
P.O. Box 43841-119,
Rezvanshahr 43861-56387, Iran
Search for other works by this author on:
Neda Gilani,
Neda Gilani
Fouman Faculty of Engineering,
College of Engineering,
University of Tehran,
P.O. Box 43515-1155,
Fouman 43516-66456, Iran
e-mail: gilani@ut.ac.ir
College of Engineering,
University of Tehran,
P.O. Box 43515-1155,
Fouman 43516-66456, Iran
e-mail: gilani@ut.ac.ir
Search for other works by this author on:
Jafar Towfighi Daryan
Jafar Towfighi Daryan
Faculty of Chemical Engineering,
Tarbiat Modares University,
P.O. Box 14115-143,
Tehran 19166, Iran
Tarbiat Modares University,
P.O. Box 14115-143,
Tehran 19166, Iran
Search for other works by this author on:
Hossein Mohammad Ghasemi
Faculty of Caspian,
College of Engineering,
University of Tehran,
P.O. Box 43841-119,
Rezvanshahr 43861-56387, Iran
College of Engineering,
University of Tehran,
P.O. Box 43841-119,
Rezvanshahr 43861-56387, Iran
Neda Gilani
Fouman Faculty of Engineering,
College of Engineering,
University of Tehran,
P.O. Box 43515-1155,
Fouman 43516-66456, Iran
e-mail: gilani@ut.ac.ir
College of Engineering,
University of Tehran,
P.O. Box 43515-1155,
Fouman 43516-66456, Iran
e-mail: gilani@ut.ac.ir
Jafar Towfighi Daryan
Faculty of Chemical Engineering,
Tarbiat Modares University,
P.O. Box 14115-143,
Tehran 19166, Iran
Tarbiat Modares University,
P.O. Box 14115-143,
Tehran 19166, Iran
1Corresponding author.
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS. Manuscript received August 31, 2016; final manuscript received May 14, 2017; published online July 25, 2017. Assoc. Editor: Steve Q. Cai.
J. Thermal Sci. Eng. Appl. Dec 2017, 9(4): 041012 (11 pages)
Published Online: July 25, 2017
Article history
Received:
August 31, 2016
Revised:
May 14, 2017
Citation
Mohammad Ghasemi, H., Gilani, N., and Towfighi Daryan, J. (July 25, 2017). "Investigating the Effect of Fuel Rate Variation in an Industrial Thermal Cracking Furnace With Alternative Arrangement of Wall Burners Using Computational Fluid Dynamics Simulation." ASME. J. Thermal Sci. Eng. Appl. December 2017; 9(4): 041012. https://doi.org/10.1115/1.4036801
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