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Research Papers

Convective Heat Transfer Coefficients of Multifaceted Longitudinal and Transversal Bricks of Lattice Setting in Tunnel Kilns

[+] Author and Article Information
Hosny Z. Abou-Ziyan

Mechanical Power Engineering Department,
College of Technological Studies,
PAAET,
Shuwaikh 70654, Kuwait
e-mail: hosnyaz@hotmail.com

Issa F. Almesri, Mosab A. Alrahmani, Jaber H. Almutairi

Mechanical Power Engineering Department,
College of Technological Studies,
PAAET,
Shuwaikh 70654, Kuwait

1Corresponding author.

Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS. Manuscript received December 3, 2017; final manuscript received April 2, 2018; published online May 22, 2018. Assoc. Editor: Sandra Boetcher.

J. Thermal Sci. Eng. Appl 10(5), 051014 (May 22, 2018) (13 pages) Paper No: TSEA-17-1470; doi: 10.1115/1.4040034 History: Received December 03, 2017; Revised April 02, 2018

This paper reports the local multifaceted and area-averaged convective heat transfer coefficients (CHTCs) of longitudinal and transverse bricks arranged in lattice brick setting in tunnel kilns, using a three-dimensional (3D) computational fluid dynamics (CFD) model. A mesh sensitivity analysis was performed and the model was validated against reported experimental data in tunnel kilns. Three turbulence models were tested: the standard k–ε, re-normalization group (RNG) k–ε, and k–ω. The k–ω model provided the closest results to the experimental data. The CHTCs from the front, back, left, and right faces of the longitudinal and transverse bricks were calculated under various conditions. Area-averaged CHTCs for bricks were determined from the multifaceted CHTCs. Effects of rows, layers, and walls on faces and area-averaged CHTCs were investigated. A sensitivity analysis was performed to explore the effect of flow channels on the CHTCs. The numerical results showed that the CHTCs are enhanced by 17% for the longitudinal bricks and 27% for the transverse bricks when a uniform flow is reached in the tunnel kilns. Also, similar area-averaged CHTCs for the longitudinal and transverse bricks were obtained as a result of the uniform flow. Therefore, the specific energy consumption, quality, and quantity of brick production could be enhanced.

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References

Brosnan, D. A. , and Robinson, G. C. , 2003, Introduction to Drying of Ceramics, The American Ceramic Society, Westerville, OH.
Shular, J. , 1996, “ The Emission Factor Documentation for AP-42, Section 11.7,” Ceramic Products Manufacturing for U.S. Environmental Protection Agency, Washington, DC, EPA Contract No. 68-D2-0159.
Rentz, A. , Schmittinger, R. , Jochum, F. , and Schultmann , 2001, “ Exemplary Investigation Into the State of Practical Realisation of Integrated Environmental Protection Within the Ceramics Industry Under Observance of the IPPC-Directive and the Development of BAT Reference Documents,” French-German Institute of Environmental Research, University of Karlsruhe, Karlsruhe, Germany, Research Project No. 298 94 313/07.
Meng, P. , 2011, “ Solid-Solid Recuperation to Improve the Energy Efficiency of Tunnel Kilns,” Ph.D. dissertation, Otto-von-Guericke-University, Magdeburg, Germany. https://www.tib.eu/en/search/id/TIBKAT%3A656891335/Solid-solid-recuperation-to-improve-the-energy/
Pariyar, S. K. , and Ferdous, T. D. , 2013, “ Environment and Health Impact for Brick Kilns in Kathmandu Valley,” Int. J. Sci. Technol. Res., 2(5), pp. 184–187. http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.307.3065&rep=rep1&type=pdf
Tehzeeb, A. H. , Bhuiyan, M. , and Jayasuriya, N. , 2012, “ Evaluation of Brick Kiln Performances Using Computational Fluid Dynamics (CFD),” Energy Environ. Eng. J., 1(2), pp. 86–93. https://researchbank.rmit.edu.au/view/rmit:20313
Almeida, G. S. , Silva, J. B. , Silva, C. J. , Swarnakar, R. , Neves, G. A. , and Lima, A. G. , 2013, “ Heat and Mass Transport in an Industrial Tunnel Dryer: Modeling and Simulation Applied to Hollow Bricks,” Appl. Therm. Eng., 55(1–2), pp. 78–86. [CrossRef]
Refaey, H. A. , and Specht, E. , 2013, “ Flow Field Visualization to Simulate the Burning of Sanitary Ware in Tunnel Kilns,” Eleventh International Conference of Fluid Dynamics (ICFD 11), Alexandria, Egypt, Dec. 19–21, pp. 1–13. http://www.academia.edu/19107877/Flow_Field_Visualization_to_Simulate_the_Burning_of_Sanitaryware_in_Tunnel_Kilns
Mancuhan, E. , Kucukada, K. , and Alpman, E. , 2011, “ Mathematical Modeling and Simulation of the Preheating Zone of a Tunnel Kiln,” J. Therm. Sci. Technol., 31(2), pp. 79–86. https://www.researchgate.net/publication/288044522_Mathematical_modeling_and_simulation_of_the_preheating_zone_of_a_tunnel_kiln
Kaya, S. , Kucukada, K. , and Mancuhan, E. , 2008, “ Model-Based Optimization of Heat Recovery in the Cooling Zone of a Tunnel Kiln,” Appl. Therm. Eng., 28(5–6), pp. 633–641. [CrossRef]
Nicolau, V. , and Dadam, A. P. , 2009, “ Numerical and Experimental Thermal Analysis of a Tunnel Kiln Used in Ceramic Production,” J. Braz. Soc. Mech. Sci. Eng., 31(4), pp. 297–304. [CrossRef]
Refaey, H. A. , Specht, E. , and Salem, M. R. , 2015, “ Influence of Fuel Distribution and Heat Transfer on Energy Consumption in Tunnel Kilns,” Int. J. Adv. Eng. Technol., 8(3), pp. 281–293. https://www.researchgate.net/publication/280231746_Influence_of_Fuel_Distribution_and_Heat_Transfer_on_Energy_Consumption_in_Tunnel_Kilns
German Federal Environmental Agency, 2007, “ The Best Available Techniques in the Ceramic Industry,” Environmental Protection Agency, Wexford, Ireland.
Mancuhan, E. , and Kucukada, K. , 2006, “ Optimization of Fuel and Air Use in a Tunnel Kiln to Produce Coal Admixed Bricks,” Appl. Therm. Eng., 26(14–15), pp. 1556–1563. [CrossRef]
Vogt, S. , and Beckmann, M. , 2008, “ Convective Heat Transfer on Brick Settings,” ZI, Ziegelindustrie Int., 60(9), pp. 34–49.
Dugwell, D. R. , and Oakley, D. E. , 1989, “ Correlation of Convective Heat Transfer Data for Tunnel Kilns,” ZI, Ziegelindustrie Int., 42(10), pp. 536–545.
Dugwell, D. R. , and Oakley, D. E. , 1988, “ A Model of Heat Transfer in Tunnel Kilns Used for Firing Refractories,” Int. J. Heat Mass Transfer, 31(11), pp. 2381–2390. [CrossRef]
Karaush, S. A. , Chizhik, Y. I. , and Bober, E. G. , 1997, “ Optimization of Ceramic Setting as a Function of Their Heat Absorption From the Radiating Walls of the Furnace,” Glass Ceram., 54(5–6), pp. 190–192. [CrossRef]
Abou-Ziyan, H. Z. , 2004, “ Convective Heat Transfer From Different Brick Arrangements in Tunnel Kilns,” Appl. Therm. Eng., 24(2–3), pp. 171–191. [CrossRef]
Refaey, H. A. , Abdel-Aziz, A. A. , Ali, R. K. , Abdelrahman, H. E. , and Salem, M. R. , 2017, “ Augmentation of Convective Heat Transfer in the Cooling Zone of Brick Tunnel Kiln Using Guide Vanes: An Experimental Study,” Int. J. Therm. Sci., 122, pp. 172–185. [CrossRef]
Almutairi, J. H. , Alrahmani, M. A. , Almesri, I. F. , and Abou-Ziyan, H. Z. , 2017, “ Effect of Fluid Channels on Flow Uniformity in Complex Geometry Similar to Lattice Brick Setting in Tunnel Kilns,” Int. J. Mech. Sci., 134, pp. 28–40. [CrossRef]
Tahirbegović, K. D. , Voronjec, D. K. , and Radojković, N. V. , 1997, “ Mathematical Model for the Calculation of Resistance to Heat Transmission at the Cross-Flow of Gas in Tunnel Ovens for the Production of Construction Ceramics,” Sci. J. Facta Universitatis Ser.: Mech. Eng., 1(4), pp. 409–421. https://philpapers.org/rec/TAHMMF

Figures

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Fig. 2

Locations of the instrumented bricks (a) longitudinal (b) transverse

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Fig. 1

Virtual wind tunnel and the bricks setting used in the CFD simulations

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Fig. 5

(a) Effect of kiln walls on the CHTCs of the longitudinal bricks for all brick setting rows and (b) effect of kiln walls on the CHTCs of the transverse bricks for all brick setting rows

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Fig. 3

Free areas of (a) the longitudinal brick and (b) the transverse brick

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Fig. 4

(a) Multifaceted CHTCs of the longitudinal bricks located in the column channels for all brick setting rows and (b) multifaceted CHTCs of the transverse bricks located in the column channels for all brick setting rows

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Fig. 6

The effect of the longitudinal brick position in a layer on the CHTCs for all brick setting rows

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Fig. 7

(a) The effect of the longitudinal brick position in a layer on the average CHTCs for all brick setting rows and (b) ratios of the CHTCs of the right longitudinal brick to the corresponding CHTCs of the middle longitudinal brick, in the same brick column for each brick setting row

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Fig. 8

The effect of the transverse brick position in a layer on the CHTCs for all brick setting rows

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Fig. 9

(a) The effect of the transverse brick position in a layer on the area-averaged CHTCs for all brick setting rows and (b) ratios of the CHTCs of the first transverse brick, to the corresponding CHTCs of the last transverse brick, in the same brick column for each brick setting row

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Fig. 10

(a) Ratios of the CHTCs of the longitudinal bricks in the optimum case, to the corresponding CHTCs in the base case, for all brick setting rows and (b) ratios of the CHTCs of the transverse bricks in the optimum case, to the corresponding CHTCs in the base case, for all brick setting rows

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Fig. 11

(a) Ratios of the CHTCs of the longitudinal bricks at an inlet air temperature of 1073 K, to the corresponding CHTCs at an inlet air temperature of 303 K, of the optimum case for all brick setting rows. (b) Ratios of the CHTCs of the transverse bricks at an inlet air temperature of 1073 K to the corresponding CHTCs at an inlet air temperature of 303 K of the optimum case for all brick setting rows.

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