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 |
Simulation, Propulsive Efficiencies, Energy Efficiency Design Index, Modeling, Computational Development
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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
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
@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} }
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 -