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Vol.2, No.1, 2023: pp.1-7
EFFECT OF GEOMETRY UPON COOLING CHARACTERISTICS OF WAFER BLOCK COOLERS
Authors:
Mesut Bitkin1
, Abdullah Sadık Tazegül1
, Osman Okumuşer1
, Furkan Şahin1
,
Abdurrahman Ekin1
, Ömer Sinan Şahin2
1Tüfekçioğulları Machine Company R&D Center, Türkiye
2Konya Technical University, Faculty of Engineering and Natural Sciences, Department of Mechanical Engineering, Türkiye
Received: 13 December 2022
Revised: 22 February 2023
Accepted: 6 March 2023
Published: 31 March 2023
Abstract:
The product formed after the cream is spread between the wafer sheets is called a wafer block. The wafer block can have a minimum of 3 layers (2 sheets, 1 cream) and a maximum of 9 layers (5 sheets, 4 creams). The temperature of the wafer block before entering the cooling tower is 30-35°C. After the cooling process is completed, it cannot be reduced to the outlet temperature (~16°C) and the temperature is not homogeneously distributed. Especially the middle regions are hot. In this paper, the homogeneous temperature distribution is aimed at by using the CFD method. CFD analysis of three predetermined designs was performed using Solidworks / Flow Simulation software. The first design is the one currently used. In the second design, a design improvement has been made to reduce the effect of vortices in dead zones. In the third design, a design improvement was made to positively affect the flow rate in the upper region where the evaporator and fan are located. In the second design, the temperature difference on the wafer block is reduced by 0.02°C compared to the current design. The third design decreases by 0.13°C compared to the second design.
Keywords:
Wafer block cooling towers, computational fluid dynamics, wafer block cooling, wafer production lines, wafers
References:
[1] K.F. Tifenbacher, The Technology of Wafers and Waffles I: Operational Aspects, First ed., Elsevier, 2017.
[2] Wafer Block Cooling Tunnel. Bühler Group GmbH, Uzwil, Switzerland.
https://www.buhlergroup.com/content/buhlergroup/global/en/products/franz_haas_kkh_waferblockcoolingtunnel.html (Accessed: 7 December 2022).
[3] Spiral Cooling. Hebenstreit GmbH, Mörfelden-Walldorf, Germany.
https://www.hebenstreit.de/en/components/wafers/spiral-wafer-sandwich-cooler-ksp (Accessed: 7 December 2022)
[4] D. Manley, Wafer Biscuits. In Manley’s Technology of Biscuits, Crackers and Cookies, Fourth ed. Woodhead, 2011.
[5] K.D. Kuffi, T. Defraeye, B.M. Nicolai, S. De Smet, A. Geeraerd, P. Verboven, CFD Modeling of Industrial Cooling of Large Beef Carcasses. International Journal of Refrigeration, 69, 2016: 324-339. https://doi.org/10.1016/j.ijrefrig.2016.06.013
[6] I.K. Muhammed, Mechanical Characterisation of Confectionery Wafers, Doctoral Thesis. Faculty of Mechanical Engineering, Imperial College, London, 2011.
[7] H. Wang, S. Touber, Distributed Dynamic Modelling of A Refrigerated Room. International Journal of Refrigeration, 13(4), 1990: 214-222. https://doi.org/10.1016/0140-7007(90)90033-S
[8] H.B. Nahor, M.L. Hoang, P. Verboven, M. Baelmans, B.M. Nicolai, CFD Model of The Airflow, Heat and Mass Transfer in Cool Stores. International Journal of Refrigeration, 28(3), 2005: 368-380. https://doi.org/10.1016/j.ijrefrig.2004.08.014
[9] R. Bhadu, K.R. Aharwal, A. Rajan, Performance Analysis of Axial Flow Cooling Coil and Mixed Flow Cooling in A Cold Storage Using Numerical Method. International Journal for Scientific Research and Development, 3(4), 2015: 3004-3009.
[10] V.M. Sivakumar, A. Surendhar, T. Kannadasan, Prediction of Air Flow and Temperature Distribution Inside A Yogurt Cooling Room Using Computational Fluid Dynamics. Journal of Applied Fluid Mechanics, 8(2), 2015: 197-206.
https://doi.org/10.18869/ACADPUB.JAFM.67.221.20342
[11] M.M. Josijević, V.M. Šušteršič, D.R. Gordić, Ranking Energy Performance Opportunities Obtained With Energy Audit in Dairies. Thermal Science, 24(5 Part A), 2020: 2865-2878. https://doi.org/10.2298/TSCI191125100J
[12] O. Farhat, J. Faraj, F. Hachem, C. Castelain, M. Khaled, A Recent Review on Waste Heat Recovery Methodologies and Applications: Comprehensive Review, Critical Analysis and Potential Recommendations. Cleaner Engineering and Technology, 6, 2022: 100387. https://doi.org/10.1016/j.clet.2021.100387
[13] G.R. Thorpe, On The Rate of Cooling of Aerated Food Grains. Biosystems Engineering, 222, 2022: 106-116.
https://doi.org/10.1016/j.biosystemseng.2022.08.001
[14] H. Ghofori, Computational Fluid Dynamics (CFD) Analysis of Pipeline in The Food Pellets Cooling System. Journal of Stored Products Research, 87, 2020: 101581. https://doi.org/10.1016/j.jspr.2020.101581
© 2023 by the authors. This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0)
Volume 3
Number 2
June 2024.
How to Cite
M. Bitkin, A.S. Tazegül, O. Okumuşer, F. Şahin, A. Ekin, Ö.S. Şahin, Effect of Geometry Upon Cooling Characteristics of Wafer Block Coolers. Advanced Engineering Letters, 2(1), 2023: 1-7. https://doi.org/10.46793/adeletters.2023.2.1.1
More Citation Formats
Bitkin, M., Tazegül, A. S., Okumuşer, O., Şahin, F., Ekin, A., & Şahin, Ö. S. (2023). Effect of Geometry Upon Cooling Characteristics of Wafer Block Coolers. Advanced Engineering Letters, 2(1), 1–7. https://doi.org/10.46793/adeletters.2023.2.1.1
Bitkin, Mesut, et al. “Effect of Geometry Upon Cooling Characteristics of Wafer Block Coolers.” Advanced Engineering Letters, vol. 2, no. 1, 2023, pp. 1–7, https://doi.org/10.46793/adeletters.2023.2.1.1.
Bitkin, Mesut, Abdullah Sadık Tazegül, Osman Okumuşer, Furkan Şahin, Abdurrahman Ekin, and Ömer Sinan Şahin. 2023. “Effect of Geometry Upon Cooling Characteristics of Wafer Block Coolers.” Advanced Engineering Letters 2 (1): 1–7. https://doi.org/10.46793/adeletters.2023.2.1.1.
Bitkin, M., Tazegül, A.S., Okumuşer, O., Şahin, F., Ekin, A. and Şahin, Ö.S. (2023). Effect of Geometry Upon Cooling Characteristics of Wafer Block Coolers. Advanced Engineering Letters, 2(1), pp.1–7. doi: 10.46793/adeletters.2023.2.1.1.