Computational investigation of ship propulsion performance in rough seas

Research output: Contribution to conferenceProceeding

Abstract

In this paper, the performance of a merchant vessel propulsion system during acceleration is evaluated under different sea state conditions. The various parts of the main propulsion system have been modelled by using a mean value approach for the engine model with differential equations to calculate the engine crankshaft and turbocharger shaft speeds. Ship propulsion system has been modelled by using differential equations to calculate vessel speed and speed of advance. The output of the engine model has been validated under steady conditions according to the main engine shop test performance data. The calm water resistance is calculated following the ship sea trials results, whilst Wageningen polynomials have been used to simulate the propeller performance for the given hull resistance and speed. In order to estimate the added resistance for different weather conditions, the recommended procedures by International Standards have been followed. Then, the propulsion system performance is evaluated, both in calm water and waves, to investigate the main engine response during acceleration. Based on the simulation results, the propulsion system performance is discussed in respect for the engine response and vessel hydrodynamic performance, predicting the maximum vessel speed for the available engine power and speed.

Conference

ConferenceInternational Conference of Maritime Safety and Operations 2016
Abbreviated titleMSO 2016
CountryUnited Kingdom
CityGlasgow
Period13/10/1614/10/16
Internet address

Fingerprint

Ship propulsion
Engines
Propulsion
Differential equations
Crankshafts
Propellers
Water
Ships
Hydrodynamics
Polynomials

Keywords

  • marine diesel engines
  • transient performance
  • propulsion system modelling
  • ship performance
  • sea states
  • mean value engine modelling

Cite this

Mizythras, P., Boulougouris, E., & Theotokatos, G. (2016). Computational investigation of ship propulsion performance in rough seas. 183-193. International Conference of Maritime Safety and Operations 2016, Glasgow, United Kingdom.
Mizythras, P. ; Boulougouris, E. ; Theotokatos, G. / Computational investigation of ship propulsion performance in rough seas. International Conference of Maritime Safety and Operations 2016, Glasgow, United Kingdom.11 p.
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title = "Computational investigation of ship propulsion performance in rough seas",
abstract = "In this paper, the performance of a merchant vessel propulsion system during acceleration is evaluated under different sea state conditions. The various parts of the main propulsion system have been modelled by using a mean value approach for the engine model with differential equations to calculate the engine crankshaft and turbocharger shaft speeds. Ship propulsion system has been modelled by using differential equations to calculate vessel speed and speed of advance. The output of the engine model has been validated under steady conditions according to the main engine shop test performance data. The calm water resistance is calculated following the ship sea trials results, whilst Wageningen polynomials have been used to simulate the propeller performance for the given hull resistance and speed. In order to estimate the added resistance for different weather conditions, the recommended procedures by International Standards have been followed. Then, the propulsion system performance is evaluated, both in calm water and waves, to investigate the main engine response during acceleration. Based on the simulation results, the propulsion system performance is discussed in respect for the engine response and vessel hydrodynamic performance, predicting the maximum vessel speed for the available engine power and speed.",
keywords = "marine diesel engines, transient performance, propulsion system modelling, ship performance, sea states, mean value engine modelling",
author = "P. Mizythras and E. Boulougouris and G. Theotokatos",
year = "2016",
month = "10",
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language = "English",
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note = "International Conference of Maritime Safety and Operations 2016, MSO 2016 ; Conference date: 13-10-2016 Through 14-10-2016",
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Mizythras, P, Boulougouris, E & Theotokatos, G 2016, 'Computational investigation of ship propulsion performance in rough seas' International Conference of Maritime Safety and Operations 2016, Glasgow, United Kingdom, 13/10/16 - 14/10/16, pp. 183-193.

Computational investigation of ship propulsion performance in rough seas. / Mizythras, P.; Boulougouris, E.; Theotokatos, G.

2016. 183-193 International Conference of Maritime Safety and Operations 2016, Glasgow, United Kingdom.

Research output: Contribution to conferenceProceeding

TY - CONF

T1 - Computational investigation of ship propulsion performance in rough seas

AU - Mizythras, P.

AU - Boulougouris, E.

AU - Theotokatos, G.

PY - 2016/10/13

Y1 - 2016/10/13

N2 - In this paper, the performance of a merchant vessel propulsion system during acceleration is evaluated under different sea state conditions. The various parts of the main propulsion system have been modelled by using a mean value approach for the engine model with differential equations to calculate the engine crankshaft and turbocharger shaft speeds. Ship propulsion system has been modelled by using differential equations to calculate vessel speed and speed of advance. The output of the engine model has been validated under steady conditions according to the main engine shop test performance data. The calm water resistance is calculated following the ship sea trials results, whilst Wageningen polynomials have been used to simulate the propeller performance for the given hull resistance and speed. In order to estimate the added resistance for different weather conditions, the recommended procedures by International Standards have been followed. Then, the propulsion system performance is evaluated, both in calm water and waves, to investigate the main engine response during acceleration. Based on the simulation results, the propulsion system performance is discussed in respect for the engine response and vessel hydrodynamic performance, predicting the maximum vessel speed for the available engine power and speed.

AB - In this paper, the performance of a merchant vessel propulsion system during acceleration is evaluated under different sea state conditions. The various parts of the main propulsion system have been modelled by using a mean value approach for the engine model with differential equations to calculate the engine crankshaft and turbocharger shaft speeds. Ship propulsion system has been modelled by using differential equations to calculate vessel speed and speed of advance. The output of the engine model has been validated under steady conditions according to the main engine shop test performance data. The calm water resistance is calculated following the ship sea trials results, whilst Wageningen polynomials have been used to simulate the propeller performance for the given hull resistance and speed. In order to estimate the added resistance for different weather conditions, the recommended procedures by International Standards have been followed. Then, the propulsion system performance is evaluated, both in calm water and waves, to investigate the main engine response during acceleration. Based on the simulation results, the propulsion system performance is discussed in respect for the engine response and vessel hydrodynamic performance, predicting the maximum vessel speed for the available engine power and speed.

KW - marine diesel engines

KW - transient performance

KW - propulsion system modelling

KW - ship performance

KW - sea states

KW - mean value engine modelling

UR - https://doi.org/10.5281/zenodo.197090

M3 - Proceeding

SP - 183

EP - 193

ER -

Mizythras P, Boulougouris E, Theotokatos G. Computational investigation of ship propulsion performance in rough seas. 2016. International Conference of Maritime Safety and Operations 2016, Glasgow, United Kingdom.