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Modeling and Simulation of Ship Propulsive Efficiencies Related Characteristics with Energy Efficiency Design Index in Focus

Received: 4 May 2022     Accepted: 26 May 2022     Published: 27 June 2022
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Abstract

Computer-based simulation of ship propulsion system performance parameters related characteristics was conducted with energy efficient design index (EEDI) in focus in this study. A tanker vessel-MT Diamond is selected as a case study. EEDI related studies on propulsion system conducted by several researchers are based on maximizing specific fuel consumption, trim and draft optimization, block coefficient optimization amongst other. This lent credence to the need for a research window in this direction which this research tries to filled by studying the relationship between EEDI and ship propulsive efficiencies. The computational development of modeling and simulation for this research was brought to fruition utilizing MATLAB. Focus was given to performance parameters that influence the overall performance of the propulsion system. A detailed program code was developed and implemented to simulate the behavior of some propulsion system efficiencies such as the brake specific fuel consumption (bsfc), brake thermal efficiency, ηb, propulsive efficiency, ηp, overall ship efficiency, ηsp and EEDI. The cumulative analysis revealed that the optimal ship effective power is 8.20kW at a vessel speed of 13knot and with a decay constant of 0.049s-1, the EEDI shows a commensurate improvement of 3.5% when the optimal overall propulsive efficiency of the ship is 0.507398386. Results from the simulation analysis carried out to reproduce the propulsion behaviour of the ship indicate the validity of the mathematical models. Also, improvement in the propulsion system performance parameters gives a commensurate improvement in the EEDI, specific fuel consumption (sfc) and emission level of the vessel.

Published in American Journal of Science, Engineering and Technology (Volume 7, Issue 2)
DOI 10.11648/j.ajset.20220702.14
Page(s) 50-56
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), 2022. Published by Science Publishing Group

Keywords

Simulation, Propulsive Efficiencies, Energy Efficiency Design Index, Modeling, Computational Development

References
[1] Bob-Manuel, K. D. H. & Okim, B. O. (2018). Optimizing technique in matching combined diesel engine or gas turbine (CODOG) propulsion system to hull and propeller of a frigate. 14th International Naval Engineering Conference & Exhibition. Glasgow, United Kingdom. 14 (2), 1-10.
[2] Ogbonnaya, E. A (2020). Thermodynamics of steam and gas turbines [ISBN: 974-2631-760], Published by SABCOS PRINTERS & PUBLISHERS Port Harcourt, Nigeria, 2020.
[3] Gerasimos, T. & Vasileios T. (2016). A Computational study on the performance and emissions parameters mapping of a ship propulsion system. Journal of Marine Engineering and Technology. 16 (1), 1-39.
[4] Golam-Zakaria, N. M. & Sohanur, R. (2016). Energy Efficiency Design Index for Inland Vessels in Bangladesh. Procedia Engineering: 10th International Conference on Marine Technology, MARTEC. 194 (2017) 362-369.
[5] Huilin R., Yu D., & Congbiao S., (2019). Influence of EEDI (Energy Effciency Design Index) on Ship–Engine–Propeller Matching. Marine Science and Engineering. 1 (1), 1-22.
[6] Odokwo, V. E. & Ogbonnaya, E. A. (2019). Performance optimization of combined gas and steam power plant using artificial neural network. Indian Journal of Engineering, 16 (1), 35-45.
[7] Guan, C. Theotokatos, G., Zhou, P. & Chen, H. (2015). Analysis of Two Stroke Marine Diesel Engine Operation Including Turbocharger Cut-Out by Using a Zero-Dimensional Model. Energies, 8 (3), 5738-5764.
[8] Kamal K. & Hui, C., (2013). A Semi-Experimental Modeling Approach for a Large Two-Stroke Marine Diesel Engine Simulation. International Council on Combustion Engines, CIMAC Congress, Shanghai. 105 (1), 1-12.
[9] Jun-rui J., (2017). Research on Ship Power Plant Simulation System Based on LabVIEW and MATLAB Mixed Programming. 2nd International Conference on Automation, Mechanical Control and Computational Engineering (AMCCE 2017). Advances in Engineering Research, 118 (2), 89-95.
[10] Ogar, O. B., Nitonye, S., & John-Hope, I. (2018) Design Analysis and Optimal Matching of a Controllable Pitch Propeller to the Hull and Diesel Engine of a CODOG System. Journal of Power and Energy Engineering 6 (1), 53-74.
[11] Shouman, M. R & Elkafas, A. G., &. (2021). Assessment of Energy Efficiency and Ship Emissions from Speed Reduction Measures on a Medium Sized Container Ship. International Journal of Maritime Engineering, 163 (A3).
[12] Tokuslu, A. (2020). Analyzing the Energy Efficiency Design Index (EEDI) Performance of a Container Ship. International Journal of Environment and Geoinformatics (IJEGEO), 7 (2): 114-119. DOI: 10.30897/ijegeo.
[13] Zheng, Z. H and Zhong, X. H. (2019). Design and simulation of ship energy efficiency management system based on data analysis. Journal of Coastal Research. 94 (1) 552-556.
[14] Tran A. (2016) Calculation and Assessing the EEDI Index in the Field of Ship Energy Efficiency for M/V Jules Garnier. J Marine Sci Res Dev 6: 212. doi: 10.4172/2155-9910.1000212.
[15] Vedran M, Vladimir, M. & Ozren, B. (2016). Simulation of a Two-Stroke Slow Speed Diesel Engine Using a Quasi-Dimensional Model. Transactions of Famena. 7 (40). 35-44.
Cite This Article
  • APA Style

    Odokwo Victor Effiong, Ogbonnaya Ezenwa Alfred, Barinyima Nkoi. (2022). Modeling and Simulation of Ship Propulsive Efficiencies Related Characteristics with Energy Efficiency Design Index in Focus. American Journal of Science, Engineering and Technology, 7(2), 50-56. https://doi.org/10.11648/j.ajset.20220702.14

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    ACS Style

    Odokwo Victor Effiong; Ogbonnaya Ezenwa Alfred; Barinyima Nkoi. Modeling and Simulation of Ship Propulsive Efficiencies Related Characteristics with Energy Efficiency Design Index in Focus. Am. J. Sci. Eng. Technol. 2022, 7(2), 50-56. doi: 10.11648/j.ajset.20220702.14

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    AMA Style

    Odokwo Victor Effiong, Ogbonnaya Ezenwa Alfred, Barinyima Nkoi. Modeling and Simulation of Ship Propulsive Efficiencies Related Characteristics with Energy Efficiency Design Index in Focus. Am J Sci Eng Technol. 2022;7(2):50-56. doi: 10.11648/j.ajset.20220702.14

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  • @article{10.11648/j.ajset.20220702.14,
      author = {Odokwo Victor Effiong and Ogbonnaya Ezenwa Alfred and Barinyima Nkoi},
      title = {Modeling and Simulation of Ship Propulsive Efficiencies Related Characteristics with Energy Efficiency Design Index in Focus},
      journal = {American Journal of Science, Engineering and Technology},
      volume = {7},
      number = {2},
      pages = {50-56},
      doi = {10.11648/j.ajset.20220702.14},
      url = {https://doi.org/10.11648/j.ajset.20220702.14},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajset.20220702.14},
      abstract = {Computer-based simulation of ship propulsion system performance parameters related characteristics was conducted with energy efficient design index (EEDI) in focus in this study. A tanker vessel-MT Diamond is selected as a case study. EEDI related studies on propulsion system conducted by several researchers are based on maximizing specific fuel consumption, trim and draft optimization, block coefficient optimization amongst other. This lent credence to the need for a research window in this direction which this research tries to filled by studying the relationship between EEDI and ship propulsive efficiencies. The computational development of modeling and simulation for this research was brought to fruition utilizing MATLAB. Focus was given to performance parameters that influence the overall performance of the propulsion system. A detailed program code was developed and implemented to simulate the behavior of some propulsion system efficiencies such as the brake specific fuel consumption (bsfc), brake thermal efficiency, ηb, propulsive efficiency, ηp, overall ship efficiency, ηsp and EEDI. The cumulative analysis revealed that the optimal ship effective power is 8.20kW at a vessel speed of 13knot and with a decay constant of 0.049s-1, the EEDI shows a commensurate improvement of 3.5% when the optimal overall propulsive efficiency of the ship is 0.507398386. Results from the simulation analysis carried out to reproduce the propulsion behaviour of the ship indicate the validity of the mathematical models. Also, improvement in the propulsion system performance parameters gives a commensurate improvement in the EEDI, specific fuel consumption (sfc) and emission level of the vessel.},
     year = {2022}
    }
    

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  • TY  - JOUR
    T1  - Modeling and Simulation of Ship Propulsive Efficiencies Related Characteristics with Energy Efficiency Design Index in Focus
    AU  - Odokwo Victor Effiong
    AU  - Ogbonnaya Ezenwa Alfred
    AU  - Barinyima Nkoi
    Y1  - 2022/06/27
    PY  - 2022
    N1  - https://doi.org/10.11648/j.ajset.20220702.14
    DO  - 10.11648/j.ajset.20220702.14
    T2  - American Journal of Science, Engineering and Technology
    JF  - American Journal of Science, Engineering and Technology
    JO  - American Journal of Science, Engineering and Technology
    SP  - 50
    EP  - 56
    PB  - Science Publishing Group
    SN  - 2578-8353
    UR  - https://doi.org/10.11648/j.ajset.20220702.14
    AB  - Computer-based simulation of ship propulsion system performance parameters related characteristics was conducted with energy efficient design index (EEDI) in focus in this study. A tanker vessel-MT Diamond is selected as a case study. EEDI related studies on propulsion system conducted by several researchers are based on maximizing specific fuel consumption, trim and draft optimization, block coefficient optimization amongst other. This lent credence to the need for a research window in this direction which this research tries to filled by studying the relationship between EEDI and ship propulsive efficiencies. The computational development of modeling and simulation for this research was brought to fruition utilizing MATLAB. Focus was given to performance parameters that influence the overall performance of the propulsion system. A detailed program code was developed and implemented to simulate the behavior of some propulsion system efficiencies such as the brake specific fuel consumption (bsfc), brake thermal efficiency, ηb, propulsive efficiency, ηp, overall ship efficiency, ηsp and EEDI. The cumulative analysis revealed that the optimal ship effective power is 8.20kW at a vessel speed of 13knot and with a decay constant of 0.049s-1, the EEDI shows a commensurate improvement of 3.5% when the optimal overall propulsive efficiency of the ship is 0.507398386. Results from the simulation analysis carried out to reproduce the propulsion behaviour of the ship indicate the validity of the mathematical models. Also, improvement in the propulsion system performance parameters gives a commensurate improvement in the EEDI, specific fuel consumption (sfc) and emission level of the vessel.
    VL  - 7
    IS  - 2
    ER  - 

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Author Information
  • Department of Marine Engineering, Akwa Ibom State University, Mkpat Enin, Nigeria

  • Department of Marine Engineering, Niger Delta University, Wilberforce Island, Nigeria

  • Department of Mechanical Engineering, Rivers State University, Port Harcourt, Nigeria

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