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Dimensionless Criteria Energy Dissipation of Dynamically Heating Surfaces

Received: 21 March 2014    Accepted: 11 April 2014    Published: 20 April 2014
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Abstract

In this paper, a discussion of results is presented for the dimensionless analysis of generating irreversibility of vessels in which mixing and heating of fluid are done simultaneously. In the first case, the impeller inside the mixing vessel is the heating body, and in the second case heating body is a fixed ring and the impeller inside the vessel provides only mixing of the fluid. The paper presents a comparative analysis of typical irreversible dimensionless parameters in both cases. A mathematical model is established to describe the thermal-hydraulic irreversibility of heating-mixing vessel which indirectly gives them the ability to minimize and maximize the efficiency of such a system. Also, the paper established typical relations between the dimensionless entropic values and power number, as for the water heater impeller and also for impeller, combined with a heating ring, which will enable comparison of the required power numbers

Published in International Journal of Mechanical Engineering and Applications (Volume 2, Issue 2)
DOI 10.11648/j.ijmea.20140202.11
Page(s) 25-30
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Entropy Number, Heated Impeller, Mixing of Fluid, Thermal and Hydraulic Irreversibility, Ring, Vessel

References
[1] A. Debab, ˝An investigation of heat transfer in a mechanically agitated vessel˝, Journal of Applied Fluid Mechanics, Vol. 4, No.2, Issue 1, pp. 43-50, 2011.
[2] M.Mostek, Kukukova A., Jahoda M., Machon V., ˝Comparasion of different techniques for modelling of flow field and homogenization in stirred vessel˝, Vol.59, part 6, 380-385, 2005.
[3] Gao Z., Niu G., Shi L., Smith J., ˝Mixing in stirred tank with multiple hydrofoil impellers˝, Proceeding of 11th Eropean conference on mixing, 557-564, 2003.
[4] Aoyi O., Onyango S., ˝Homogenization energy in a stirred tank˝. Chemical Engineering and Processing Journal, 2007.
[5] Aubin J., Mavros P., Fletcher F., Bertrand J., ˝Effect of axial agitator configuration (up – pumping, down-pumping, reverse rotation) on flow patterns generated in stirred vessels˝. Chemical Engineering Research Design 79, 845-856, 2001.
[6] Woziwodzki S., ˝Unsteady mixing characteristics in a vessel with forward- reverse rotating impeller˝. Chem. Eng. Tech. 34, 767-774, 2011.
[7] White Li M., Wilkingson G., Roberts D., ˝LDA measurements and cfd modeling of a stirred vessel with a retired curve impeller˝. Industrial Engineering and Chemistry Research 43, 6534-6547, 2004.
[8] Shekhar, S.M., Jayanti, S., ˝CFD study of power and mixing time for paddle mixing in unbaffled vessels˝. Trans IChem E, Part A, 0’, 482-498, 2002.
[9] Delaplace, G., Leuliet, J.C., Relandeau, V., ˝Circulation and mixing time for ribbon impellers˝. Experiments in Fluids, 28 (2): 170-182, 2000.
[10] Robinson, M., Cleary P.W., ˝The influence of cam geometry and operating conditions on chaotic mixing of viscous fluids in a twin cam mixer ˝. AIChe Journal; 57: 581-598, 2010.
[11] Alic F., ˝Rotary electrical heater˝. World intellectual property organization. Geneva, WO / 098316, 2008.
[12] Alic F., ˝Thermal – hydraulic irreversibility of electrically heated impeller blades˝. Chem. Eng. Science, Volume 104, 549-556, 2013.
[13] Bejan A., Shape and Structure, from Engineering to Nature, Cambridge University Press, 2000.
Cite This Article
  • APA Style

    Fikret Alic. (2014). Dimensionless Criteria Energy Dissipation of Dynamically Heating Surfaces. International Journal of Mechanical Engineering and Applications, 2(2), 25-30. https://doi.org/10.11648/j.ijmea.20140202.11

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    ACS Style

    Fikret Alic. Dimensionless Criteria Energy Dissipation of Dynamically Heating Surfaces. Int. J. Mech. Eng. Appl. 2014, 2(2), 25-30. doi: 10.11648/j.ijmea.20140202.11

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    AMA Style

    Fikret Alic. Dimensionless Criteria Energy Dissipation of Dynamically Heating Surfaces. Int J Mech Eng Appl. 2014;2(2):25-30. doi: 10.11648/j.ijmea.20140202.11

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  • @article{10.11648/j.ijmea.20140202.11,
      author = {Fikret Alic},
      title = {Dimensionless Criteria Energy Dissipation of Dynamically Heating Surfaces},
      journal = {International Journal of Mechanical Engineering and Applications},
      volume = {2},
      number = {2},
      pages = {25-30},
      doi = {10.11648/j.ijmea.20140202.11},
      url = {https://doi.org/10.11648/j.ijmea.20140202.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmea.20140202.11},
      abstract = {In this paper, a discussion of results is presented for the dimensionless analysis of generating irreversibility of vessels in which mixing and heating of fluid are done simultaneously. In the first case, the impeller inside the mixing vessel is the heating body, and in the second case heating body is a fixed ring and the impeller inside the vessel provides only mixing of the fluid. The paper presents a comparative analysis of typical irreversible dimensionless parameters in both cases. A mathematical model is established to describe the thermal-hydraulic irreversibility of heating-mixing vessel which indirectly gives them the ability to minimize and maximize the efficiency of such a system. Also, the paper established typical relations between the dimensionless entropic values and power number, as for the water heater impeller and also for impeller, combined with a heating ring, which will enable comparison of the required power numbers},
     year = {2014}
    }
    

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  • TY  - JOUR
    T1  - Dimensionless Criteria Energy Dissipation of Dynamically Heating Surfaces
    AU  - Fikret Alic
    Y1  - 2014/04/20
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    T2  - International Journal of Mechanical Engineering and Applications
    JF  - International Journal of Mechanical Engineering and Applications
    JO  - International Journal of Mechanical Engineering and Applications
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    PB  - Science Publishing Group
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    UR  - https://doi.org/10.11648/j.ijmea.20140202.11
    AB  - In this paper, a discussion of results is presented for the dimensionless analysis of generating irreversibility of vessels in which mixing and heating of fluid are done simultaneously. In the first case, the impeller inside the mixing vessel is the heating body, and in the second case heating body is a fixed ring and the impeller inside the vessel provides only mixing of the fluid. The paper presents a comparative analysis of typical irreversible dimensionless parameters in both cases. A mathematical model is established to describe the thermal-hydraulic irreversibility of heating-mixing vessel which indirectly gives them the ability to minimize and maximize the efficiency of such a system. Also, the paper established typical relations between the dimensionless entropic values and power number, as for the water heater impeller and also for impeller, combined with a heating ring, which will enable comparison of the required power numbers
    VL  - 2
    IS  - 2
    ER  - 

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Author Information
  • Department of Thermotehnics, Faculty of Mechanical Engineering Tuzla, Tuzla, Bosnia and Herzegovina

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