A study on the matching problem of engine, propeller, and ship hull under actual service conditions
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In ship design, the matching of engine, propeller, and hull is an analytical process to establish the optimal operating mode so that the engine works safely with full power and the lowest fuel consumption, and a ship reaches desired speed. In theory, the operating process of the engine, hull, and propeller is usually expressed by their characteristics, and the matching problem is solved by finding the intersection of these characteristics. The problem here is that the above characteristics are determined under design conditions, corresponding to the standard technical conditions of the engine, hull, and propeller, however, all of these will be changed under actual service conditions, leading to a change in the position of the defined design match points and thereby greatly affect the safety and performance of the ships. This paper presents a new approach to determining the actual characteristics of the engine, hull, and propeller and how to use them to solve the matching problem under service conditions. This study was verified and validated on three study ships and was also applied to solve the matching problem of the Glory Star tanker. All the obtained results are in good agreement with the published real experimental data for this ship with a power loss of 21.5% under current service conditions, including 6.5% due to changes in propeller characteristics by changing technical conditions of propeller and hull surface, 6.3% due to engine deterioration, and 8.7% due to the engine - propeller mismatch after 5 years of operation.
Abstract
In ship design, the matching of engine, propeller, and hull is an analytical process to establish the optimal operating mode so that the engine works safely with full power and the lowest fuel consumption, and a ship reaches desired speed. In theory, the operating process of the engine, hull, and propeller is usually expressed by their characteristics, and the matching problem is solved by finding the intersection of these characteristics. The problem here is that the above characteristics are determined under design conditions, corresponding to the standard technical conditions of the engine, hull, and propeller, however, all of these will be changed under actual service conditions, leading to a change in the position of the defined design match points and thereby greatly affect the safety and performance of the ships. This paper presents a new approach to determining the actual characteristics of the engine, hull, and propeller and how to use them to solve the matching problem under service conditions. This study was verified and validated on three study ships and was also applied to solve the matching problem of the Glory Star tanker. All the obtained results are in good agreement with the published real experimental data for this ship with a power loss of 21.5% under current service conditions, including 6.5% due to changes in propeller characteristics by changing technical conditions of propeller and hull surface, 6.3% due to engine deterioration, and 8.7% due to the engine - propeller mismatch after 5 years of operation.
참고문헌 (22)
- Barry, C., "Propeller Selection for Boats and Small Ships", E-Marine Training, ~ (2005)
- KT, KQ, and Efficiency Curves for the Wageningen B-Series Propellers, "Bernitsas, M.", The University of Michigan, 237~, pp.Report No. 237 (1981)
- Bertram, V., "Practical Ship Hydrodynamics" (2000), Butterworth Heinemann
- Carlton, J. S., "Marine Propeller and Propulsion" (2018), Butterworth-Heinemann
- Dorogotaiski, D. V., "Theory and Construction of Ship" (1964), Leningrad Shipbuilding Publishing House
- Habibi, "Design of software for calculation and analysis engine propeller matching", The 2nd EPI International Conference on Science and Engineering IOP Conf (2019), IOP Publishing
- Matching Engine and Propeller, Chapter 5 of The Diesel Engine: to Drive a Ship, "John, W. B.", The University of Michigan, 105~, pp.Report No. 105 (1971)
- Kuiken, K., "Diesel Engines II for Ship Propulsion and Power Plants", pp.368~395 (2008), Target Global Energy Training, Onnen
- "Computer Base Design Tool for a Fuel Efficient Low-Emission Marine Propulsion Plant" (2005)[URL]
- Ministry of Transport of Vietnam, "Economic and technical norms of fuel consumption for ships", Decree No. 02, TT-BGTVT dated February 21, 2020, pp.2020 (2020), ~
- Nghi, T. H., "Study to select the reasonable operating area of main engines equipped on ships purchased from abroad as a basis for building their service procedures, State-level project", Program 34, 02 e Project 34.02.12.01, ~ (1998)
- Nurhadi Nurhadi, "Study of Engine Propeller Matching for High-Speed Vessel with Gawn Series Propeller", EPI International Journal of Engineering, 1(1), pp.39~42 (2018), Center of Technology (COT)[DOI]
- Okim, B. O., "Design analysis and optimal matching of a controllable pitch propeller to the hull and Diesel engine of a CODOG system", J. Power Energy Eng, 6, pp.53~74 (2018)[DOI]
- PC2, "8L", 2 SEMT Piel Stick Engine Test Record. China, 2005
- "Sea trial record of the Glory Star", Zhejiang Changhong Shipbuilding. Co, Ltd., 32~ (2007)
- Stapersma, D., "Matching propulsion engine with propulsor", Journal of Marine Engineering and Technology, 4, pp.25~32 (2005)
- Thai, T. G., "Effects of Service Factors on the Operating Efficiency of the Combination of Engine, Propellers, and Hull", Ph.D., pp.2001
- Research On Propeller Design to Optimize Fuel Consumption and its Efficiency, Ministry Level Project, "Thai, T. G.", Ministry of Education and Training of Vietnam, ~ (2013)
- Tuan, N. V., "Reduce fuel oil consumption by modification of propeller", Proceedings of the International Association of Maritime Universities 2013. (IAMU AGA 14) (2013), Vietnam Maritime University
- Dang Van Uy, "A Study on Torque Rich Phenomena in Ship Operation", Journal of Shipping and Ocean Engineering, 6(3), pp.154~164 (2016), David Publishing Company[DOI]
- Vuong, N. H., "Estimate on the miss-matching between ship's hull - propeller and main engine in operation", Proceedings of the International Conference on Marine Science and Technology 2016, pp.182~188 (2016), Vietnam Maritime University
- Woud, H. K., "Design of Propulsion and Electric Power Generation Systems" (2003), IMarEST