1.
Jie; Chen Dang, Hao
The Second Conference of Global Chinese Scholars on Hydrodynamics, CCSH'2016, 2016.
@conference{Dang2016,
title = {Energy Saving by Using Asymmetric Aftbodies for Merchant Ships – Design Methodology, Numerical Simulation and Validation},
author = {Dang, Jie; Chen, Hao},
url = {http://www.marin.nl/web/Publications/Papers/Energy-Saving-by-Using-Asymmetric-Aftbodies-for-Merchant-Ships-Design-Methodology-Numerical-Simulation-and-Validation.htm },
year = {2016},
date = {2016-11-11},
booktitle = {The Second Conference of Global Chinese Scholars on Hydrodynamics},
publisher = {CCSH'2016},
abstract = {The methodology and procedures are discussed on designing merchant ships to achieve fully-integrated and optimized hull-propulsion systems by using asymmetric aftbodies. Computational Fluid Dynamics (CFD) has been used to evaluate the powering performance through massive calculations with automatic deformation algorisms for the hull forms and the propeller blades. Comparative model tests of the designs to the optimized symmetric hull forms have been carried out to verify the efficiency gain. More than 6% improvement on the propulsive efficiency of an oil tanker has been measured during the model tests. Dedicated sea-trials show good agreement with the predicted performance from the test results.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
The methodology and procedures are discussed on designing merchant ships to achieve fully-integrated and optimized hull-propulsion systems by using asymmetric aftbodies. Computational Fluid Dynamics (CFD) has been used to evaluate the powering performance through massive calculations with automatic deformation algorisms for the hull forms and the propeller blades. Comparative model tests of the designs to the optimized symmetric hull forms have been carried out to verify the efficiency gain. More than 6% improvement on the propulsive efficiency of an oil tanker has been measured during the model tests. Dedicated sea-trials show good agreement with the predicted performance from the test results.
2.
Hooijmans, Patrick; van der Meij, Karola; Greening, David; Yu, Lai
Traditions broken in modern container ship design Conference
Design & Operation of Container Ships, 21-22 May 2014, London, UK, The Royal Institute of Naval Architects, 2014.
@conference{Hooijmans2014,
title = {Traditions broken in modern container ship design},
author = {Patrick Hooijmans and Karola van der Meij and David Greening and Lai Yu},
url = {http://test.sssri-marin.com/wp-content/uploads/2016/01/Paper-Traditions-broken-in-modern-container-ship-design.pdf
http://www.rina.org.uk/Containership2014.html},
year = {2014},
date = {2014-05-21},
booktitle = {Design & Operation of Container Ships, 21-22 May 2014, London, UK},
publisher = {The Royal Institute of Naval Architects},
abstract = {The design of a say 5 year ‘young’ container ship is usually the result of an optimisation for maximum speed at design draught. Such design is mostly the result of an attempt to reach the contractual speed. However, a well balanced modern container ship should be a compromise between minimum fuel consumption and maximum cargo capacity across an intended or forecasted operational profile. In the design process, the focus should not only be on the calm water resistance and propulsive aspects but also the added resistance due to wind and waves should be considered, as well as the cavitation behaviour and related propeller induced pressure pulses. The SAVER 10000 developed for and in cooperation with the Canadian Owner Seaspan Ship Management Limited (Seaspan) is a pioneer in this new approach to balance the minimum fuel consumption and maximum loadability, taking into account the aspects as indicated.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
The design of a say 5 year ‘young’ container ship is usually the result of an optimisation for maximum speed at design draught. Such design is mostly the result of an attempt to reach the contractual speed. However, a well balanced modern container ship should be a compromise between minimum fuel consumption and maximum cargo capacity across an intended or forecasted operational profile. In the design process, the focus should not only be on the calm water resistance and propulsive aspects but also the added resistance due to wind and waves should be considered, as well as the cavitation behaviour and related propeller induced pressure pulses. The SAVER 10000 developed for and in cooperation with the Canadian Owner Seaspan Ship Management Limited (Seaspan) is a pioneer in this new approach to balance the minimum fuel consumption and maximum loadability, taking into account the aspects as indicated.
3.
van der Ploeg, Auke; Starke, Bram; Veldhuis, Christian
Optimization of a Chemical Tanker with Free-surface Viscous Flow Computations Conference
Proceedings of the PRADS2013, CECO, Changwon City, Korea, no. 096, Practical Design of Ships and Other Floating Structures 2013.
@conference{Ploeg2013,
title = {Optimization of a Chemical Tanker with Free-surface Viscous Flow Computations},
author = {Auke van der Ploeg and Bram Starke and Christian Veldhuis},
url = {http://www.marin.nl/web/Publications/Papers/Optimization-of-a-Chemical-Tanker-with-Freesurface-Viscous-Flow-Computations.htm},
year = {2013},
date = {2013-10-01},
booktitle = {Proceedings of the PRADS2013, CECO, Changwon City, Korea},
journal = {Proceedigs of the PRADS 2013},
number = {096},
organization = {Practical Design of Ships and Other Floating Structures},
abstract = {This paper discusses a procedure to optimize ship hull forms for minimum required power and best wake field quality, based on CFD computations of the viscous flow. A flexible and effective definition of parametric hull form variations is used, based on interpolation between basis hull forms. All RANS computations were performed for full-scale Reynolds number. An initial optimization has been obtained neglecting the ship’s wave making. Clear Pareto fronts and trends in the solutions are obtained in a systematic variation study for the afterbody of a chemical tanker. In addition we performed a systematic variation using RANS free surface, to study the influence of wave making on the computed trends. As a result, a further decrease in the object functions could be obtained and another hull form appeared to be optimal.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
This paper discusses a procedure to optimize ship hull forms for minimum required power and best wake field quality, based on CFD computations of the viscous flow. A flexible and effective definition of parametric hull form variations is used, based on interpolation between basis hull forms. All RANS computations were performed for full-scale Reynolds number. An initial optimization has been obtained neglecting the ship’s wave making. Clear Pareto fronts and trends in the solutions are obtained in a systematic variation study for the afterbody of a chemical tanker. In addition we performed a systematic variation using RANS free surface, to study the influence of wave making on the computed trends. As a result, a further decrease in the object functions could be obtained and another hull form appeared to be optimal.
4.
Kooiker, Klaas
Designed for Waves Journal Article
In: MARIN Report, no. 109, pp. 22, 2013.
@article{Kooiker2013,
title = {Designed for Waves},
author = {Klaas Kooiker},
url = {http://www.marin.nl/extra/marin-bladermodules/html/109/#22},
year = {2013},
date = {2013-08-01},
journal = {MARIN Report},
number = {109},
pages = {22},
abstract = {Platform Supply Vessels are the ultimate challenge when it comes to ship design. While calm water performance is important, for these ships it is merely a reference value. Harsh weather conditions and the corresponding sea states are the playground of the PSV and the challenging circumstances dictate fuel consumption.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Platform Supply Vessels are the ultimate challenge when it comes to ship design. While calm water performance is important, for these ships it is merely a reference value. Harsh weather conditions and the corresponding sea states are the playground of the PSV and the challenging circumstances dictate fuel consumption.
5.
Dang, Jie
Proceedings of the 31st International Conference on Ocean, Offshore and Arctic Engineering, Rio de Janeiro, Brazil , no. OMAE2012-83053 , ASME - OMAE2012 2012.
@conference{Dang2012b,
title = {An Exploratory Study on the Working Principles of Energy Saving Devices (ESDS) - PIV, CFD Investigations and ESD Design Guidelines},
author = {Jie Dang},
url = {http://www.marin.nl/web/Publications/Papers/An-Exploratory-Study-on-the-Working-Principles-of-Energy-Saving-Devices-ESDS-PIV-CFD-Investigations-and-ESD-Design-Guidelines-1.htm},
year = {2012},
date = {2012-06-01},
booktitle = {Proceedings of the 31st International Conference on Ocean, Offshore and Arctic Engineering, Rio de Janeiro, Brazil },
number = {OMAE2012-83053 },
organization = {ASME - OMAE2012},
abstract = {The Maritime Research Institute Netherlands (MARIN) has recently started a Joint Industry Project (JIP) called ESD-JILI, investigating the working principles of energy saving devices (ESDs). Within the framework of this JIP, three ESDs have been selected and thoroughly investigated. They are a Pre-Duct with an inner Stator (PDS), a Pre-Swirl Stator (PSS) with asymmetric blade design and Hub Fins (HFs). The investigations have been carried out by using dedicated force and moment sensors to measure all the components of the ESDs independently during the propulsion tests, by using Particle Image Velocimetry (PIV) to measure the flow before, in-plane and behind the propeller and the ESDs, and by using Smart Ship Model technology (Wijngaarden 2011) to simulate the full-scale wake field during the model tests to gain insights on scale effects of the ESDs. At the same time, computational fluid dynamics (CFD) calculations are also carried out in order to further deepen the understanding of the working principles of the selected ESDs, and to assist the ESDs designs under certain guidelines. Some of the results of the study have been published to the Greenship’2011 Conference (Dang et al 2011). The flow details around the propulsion system with the PDS, which were obtained by both PIV measurements and CFD calculations, and the energy balance of the ship-propulsion system with a PDS are further investigated and reported here. Based on the results of the studies, the principle guidelines for ESD designs for single screw merchant ships have been proposed. },
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
The Maritime Research Institute Netherlands (MARIN) has recently started a Joint Industry Project (JIP) called ESD-JILI, investigating the working principles of energy saving devices (ESDs). Within the framework of this JIP, three ESDs have been selected and thoroughly investigated. They are a Pre-Duct with an inner Stator (PDS), a Pre-Swirl Stator (PSS) with asymmetric blade design and Hub Fins (HFs). The investigations have been carried out by using dedicated force and moment sensors to measure all the components of the ESDs independently during the propulsion tests, by using Particle Image Velocimetry (PIV) to measure the flow before, in-plane and behind the propeller and the ESDs, and by using Smart Ship Model technology (Wijngaarden 2011) to simulate the full-scale wake field during the model tests to gain insights on scale effects of the ESDs. At the same time, computational fluid dynamics (CFD) calculations are also carried out in order to further deepen the understanding of the working principles of the selected ESDs, and to assist the ESDs designs under certain guidelines. Some of the results of the study have been published to the Greenship’2011 Conference (Dang et al 2011). The flow details around the propulsion system with the PDS, which were obtained by both PIV measurements and CFD calculations, and the energy balance of the ship-propulsion system with a PDS are further investigated and reported here. Based on the results of the studies, the principle guidelines for ESD designs for single screw merchant ships have been proposed.
6.
Zondervan, Gert-Jan; Dang, Jie
MARIN spearheads propulsion improvements Journal Article
In: MARIN Report, no. 104, pp. 16-17, 2011.
@article{zondervan2011,
title = {MARIN spearheads propulsion improvements},
author = {Gert-Jan Zondervan and Jie Dang},
url = {http://www.marin.nl/web/Publications/Publication-items/MARIN-spearheads-propulsion-improvements.htm},
year = {2011},
date = {2011-12-01},
journal = {MARIN Report},
number = {104},
pages = {16-17},
abstract = {Fuel saving and emission reduction are motivating factors in the drive to improve marine propulsor technology and in the renewed interest in special devices that improve propulsion. Together with the industry, MARIN is actively investigating their working principles and the critical design aspects, using modern design and analysis tools.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Fuel saving and emission reduction are motivating factors in the drive to improve marine propulsor technology and in the renewed interest in special devices that improve propulsion. Together with the industry, MARIN is actively investigating their working principles and the critical design aspects, using modern design and analysis tools.
7.
Hagesteijn, Gerco; Hooijmans, Patrick
Ship Design for Minimal Fuel Consumption in Everyday Use Conference
Design and Operation of Tankers, Athens, Greece, The Royal Institution of Naval Architects 2011.
@conference{Hagesteijn2011,
title = {Ship Design for Minimal Fuel Consumption in Everyday Use},
author = {Gerco Hagesteijn and Patrick Hooijmans},
url = {http://www.marin.nl/web/Publications/Publication-items/Ship-Design-for-Minimal-Fuel-Consumption-in-Everyday-Use.htm
http://www.rina.org.uk/search_publications.html
},
year = {2011},
date = {2011-06-08},
booktitle = {Design and Operation of Tankers, Athens, Greece},
organization = {The Royal Institution of Naval Architects},
abstract = {Ships are in general designed to first meet their contract speed, which is most times their trial speed. The ship design efforts are dominated by the focus to attain this trial speed. The resulting hull lines design philosophy will most likely not result into the most full efficient design in service conditions. Increasing fuel costs and low freight rates drive the need to design ships for their service conditions. It's operational draughts and added resistance due to waves that should be the key drivers for a successful modern ship design. The last years MARIN has tested and expanded its tools and capacities to support hull form design for minimal fuel consumption in everyday use, minimizing SOx and NOx emissions. Tools suchs as viscous flow calculations in an explorer mode, calculating numerous hull form variations overnight in order to maximize the performance of the vessel, and voyage simulations to determine true service margins are essential when designing a ship.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Ships are in general designed to first meet their contract speed, which is most times their trial speed. The ship design efforts are dominated by the focus to attain this trial speed. The resulting hull lines design philosophy will most likely not result into the most full efficient design in service conditions. Increasing fuel costs and low freight rates drive the need to design ships for their service conditions. It's operational draughts and added resistance due to waves that should be the key drivers for a successful modern ship design. The last years MARIN has tested and expanded its tools and capacities to support hull form design for minimal fuel consumption in everyday use, minimizing SOx and NOx emissions. Tools suchs as viscous flow calculations in an explorer mode, calculating numerous hull form variations overnight in order to maximize the performance of the vessel, and voyage simulations to determine true service margins are essential when designing a ship.
8.
Allema, Jaap
Intercepting the Interceptor Journal Article
In: MARIN Report, no. 86, pp. 6, 2005.
@article{Allema2005,
title = {Intercepting the Interceptor},
author = {Jaap Allema},
url = {http://www.marin.nl/web/Publications/Publication-items/Intercepting-the-Interceptor-at-MARIN.htm},
year = {2005},
date = {2005-09-01},
journal = {MARIN Report},
number = {86},
pages = {6},
abstract = {Although more associated with semi-planing motoryachts and other fast craft,such as patrol boats,theInterceptor is now being deployed on several models oflarge merchant vessels tested in MARIN basins.Reportplots the progress of the Interceptor as demand grows.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Although more associated with semi-planing motoryachts and other fast craft,such as patrol boats,theInterceptor is now being deployed on several models oflarge merchant vessels tested in MARIN basins.Reportplots the progress of the Interceptor as demand grows.
2016
Jie; Chen Dang, Hao
The Second Conference of Global Chinese Scholars on Hydrodynamics, CCSH'2016, 2016.
Abstract | Links | BibTeX | Tags: EEDI, efficiency, Energy Saving Device, ESD, Fuel consumption, full scale, measurement, sea trial, ship design
@conference{Dang2016,
title = {Energy Saving by Using Asymmetric Aftbodies for Merchant Ships – Design Methodology, Numerical Simulation and Validation},
author = {Dang, Jie; Chen, Hao},
url = {http://www.marin.nl/web/Publications/Papers/Energy-Saving-by-Using-Asymmetric-Aftbodies-for-Merchant-Ships-Design-Methodology-Numerical-Simulation-and-Validation.htm },
year = {2016},
date = {2016-11-11},
booktitle = {The Second Conference of Global Chinese Scholars on Hydrodynamics},
publisher = {CCSH'2016},
abstract = {The methodology and procedures are discussed on designing merchant ships to achieve fully-integrated and optimized hull-propulsion systems by using asymmetric aftbodies. Computational Fluid Dynamics (CFD) has been used to evaluate the powering performance through massive calculations with automatic deformation algorisms for the hull forms and the propeller blades. Comparative model tests of the designs to the optimized symmetric hull forms have been carried out to verify the efficiency gain. More than 6% improvement on the propulsive efficiency of an oil tanker has been measured during the model tests. Dedicated sea-trials show good agreement with the predicted performance from the test results.},
keywords = {EEDI, efficiency, Energy Saving Device, ESD, Fuel consumption, full scale, measurement, sea trial, ship design},
pubstate = {published},
tppubtype = {conference}
}
The methodology and procedures are discussed on designing merchant ships to achieve fully-integrated and optimized hull-propulsion systems by using asymmetric aftbodies. Computational Fluid Dynamics (CFD) has been used to evaluate the powering performance through massive calculations with automatic deformation algorisms for the hull forms and the propeller blades. Comparative model tests of the designs to the optimized symmetric hull forms have been carried out to verify the efficiency gain. More than 6% improvement on the propulsive efficiency of an oil tanker has been measured during the model tests. Dedicated sea-trials show good agreement with the predicted performance from the test results.
2014
Hooijmans, Patrick; van der Meij, Karola; Greening, David; Yu, Lai
Traditions broken in modern container ship design Conference
Design & Operation of Container Ships, 21-22 May 2014, London, UK, The Royal Institute of Naval Architects, 2014.
Abstract | Links | BibTeX | Tags: containerships, Fuel consumption, seakeeping
@conference{Hooijmans2014,
title = {Traditions broken in modern container ship design},
author = {Patrick Hooijmans and Karola van der Meij and David Greening and Lai Yu},
url = {http://test.sssri-marin.com/wp-content/uploads/2016/01/Paper-Traditions-broken-in-modern-container-ship-design.pdf
http://www.rina.org.uk/Containership2014.html},
year = {2014},
date = {2014-05-21},
booktitle = {Design & Operation of Container Ships, 21-22 May 2014, London, UK},
publisher = {The Royal Institute of Naval Architects},
abstract = {The design of a say 5 year ‘young’ container ship is usually the result of an optimisation for maximum speed at design draught. Such design is mostly the result of an attempt to reach the contractual speed. However, a well balanced modern container ship should be a compromise between minimum fuel consumption and maximum cargo capacity across an intended or forecasted operational profile. In the design process, the focus should not only be on the calm water resistance and propulsive aspects but also the added resistance due to wind and waves should be considered, as well as the cavitation behaviour and related propeller induced pressure pulses. The SAVER 10000 developed for and in cooperation with the Canadian Owner Seaspan Ship Management Limited (Seaspan) is a pioneer in this new approach to balance the minimum fuel consumption and maximum loadability, taking into account the aspects as indicated.},
keywords = {containerships, Fuel consumption, seakeeping},
pubstate = {published},
tppubtype = {conference}
}
The design of a say 5 year ‘young’ container ship is usually the result of an optimisation for maximum speed at design draught. Such design is mostly the result of an attempt to reach the contractual speed. However, a well balanced modern container ship should be a compromise between minimum fuel consumption and maximum cargo capacity across an intended or forecasted operational profile. In the design process, the focus should not only be on the calm water resistance and propulsive aspects but also the added resistance due to wind and waves should be considered, as well as the cavitation behaviour and related propeller induced pressure pulses. The SAVER 10000 developed for and in cooperation with the Canadian Owner Seaspan Ship Management Limited (Seaspan) is a pioneer in this new approach to balance the minimum fuel consumption and maximum loadability, taking into account the aspects as indicated.
2013
van der Ploeg, Auke; Starke, Bram; Veldhuis, Christian
Optimization of a Chemical Tanker with Free-surface Viscous Flow Computations Conference
Proceedings of the PRADS2013, CECO, Changwon City, Korea, no. 096, Practical Design of Ships and Other Floating Structures 2013.
Abstract | Links | BibTeX | Tags: CFD, Fuel consumption, ship design, tanker
@conference{Ploeg2013,
title = {Optimization of a Chemical Tanker with Free-surface Viscous Flow Computations},
author = {Auke van der Ploeg and Bram Starke and Christian Veldhuis},
url = {http://www.marin.nl/web/Publications/Papers/Optimization-of-a-Chemical-Tanker-with-Freesurface-Viscous-Flow-Computations.htm},
year = {2013},
date = {2013-10-01},
booktitle = {Proceedings of the PRADS2013, CECO, Changwon City, Korea},
journal = {Proceedigs of the PRADS 2013},
number = {096},
organization = {Practical Design of Ships and Other Floating Structures},
abstract = {This paper discusses a procedure to optimize ship hull forms for minimum required power and best wake field quality, based on CFD computations of the viscous flow. A flexible and effective definition of parametric hull form variations is used, based on interpolation between basis hull forms. All RANS computations were performed for full-scale Reynolds number. An initial optimization has been obtained neglecting the ship’s wave making. Clear Pareto fronts and trends in the solutions are obtained in a systematic variation study for the afterbody of a chemical tanker. In addition we performed a systematic variation using RANS free surface, to study the influence of wave making on the computed trends. As a result, a further decrease in the object functions could be obtained and another hull form appeared to be optimal.},
keywords = {CFD, Fuel consumption, ship design, tanker},
pubstate = {published},
tppubtype = {conference}
}
This paper discusses a procedure to optimize ship hull forms for minimum required power and best wake field quality, based on CFD computations of the viscous flow. A flexible and effective definition of parametric hull form variations is used, based on interpolation between basis hull forms. All RANS computations were performed for full-scale Reynolds number. An initial optimization has been obtained neglecting the ship’s wave making. Clear Pareto fronts and trends in the solutions are obtained in a systematic variation study for the afterbody of a chemical tanker. In addition we performed a systematic variation using RANS free surface, to study the influence of wave making on the computed trends. As a result, a further decrease in the object functions could be obtained and another hull form appeared to be optimal.
Kooiker, Klaas
Designed for Waves Journal Article
In: MARIN Report, no. 109, pp. 22, 2013.
Abstract | Links | BibTeX | Tags: added resistance in waves, Contra-rotating thrusters, Fuel consumption, harsh weather, Platform Supply Vessel, PSV
@article{Kooiker2013,
title = {Designed for Waves},
author = {Klaas Kooiker},
url = {http://www.marin.nl/extra/marin-bladermodules/html/109/#22},
year = {2013},
date = {2013-08-01},
journal = {MARIN Report},
number = {109},
pages = {22},
abstract = {Platform Supply Vessels are the ultimate challenge when it comes to ship design. While calm water performance is important, for these ships it is merely a reference value. Harsh weather conditions and the corresponding sea states are the playground of the PSV and the challenging circumstances dictate fuel consumption.},
keywords = {added resistance in waves, Contra-rotating thrusters, Fuel consumption, harsh weather, Platform Supply Vessel, PSV},
pubstate = {published},
tppubtype = {article}
}
Platform Supply Vessels are the ultimate challenge when it comes to ship design. While calm water performance is important, for these ships it is merely a reference value. Harsh weather conditions and the corresponding sea states are the playground of the PSV and the challenging circumstances dictate fuel consumption.
2012
Dang, Jie
Proceedings of the 31st International Conference on Ocean, Offshore and Arctic Engineering, Rio de Janeiro, Brazil , no. OMAE2012-83053 , ASME - OMAE2012 2012.
Abstract | Links | BibTeX | Tags: CFD, ESD, Fuel consumption
@conference{Dang2012b,
title = {An Exploratory Study on the Working Principles of Energy Saving Devices (ESDS) - PIV, CFD Investigations and ESD Design Guidelines},
author = {Jie Dang},
url = {http://www.marin.nl/web/Publications/Papers/An-Exploratory-Study-on-the-Working-Principles-of-Energy-Saving-Devices-ESDS-PIV-CFD-Investigations-and-ESD-Design-Guidelines-1.htm},
year = {2012},
date = {2012-06-01},
booktitle = {Proceedings of the 31st International Conference on Ocean, Offshore and Arctic Engineering, Rio de Janeiro, Brazil },
number = {OMAE2012-83053 },
organization = {ASME - OMAE2012},
abstract = {The Maritime Research Institute Netherlands (MARIN) has recently started a Joint Industry Project (JIP) called ESD-JILI, investigating the working principles of energy saving devices (ESDs). Within the framework of this JIP, three ESDs have been selected and thoroughly investigated. They are a Pre-Duct with an inner Stator (PDS), a Pre-Swirl Stator (PSS) with asymmetric blade design and Hub Fins (HFs). The investigations have been carried out by using dedicated force and moment sensors to measure all the components of the ESDs independently during the propulsion tests, by using Particle Image Velocimetry (PIV) to measure the flow before, in-plane and behind the propeller and the ESDs, and by using Smart Ship Model technology (Wijngaarden 2011) to simulate the full-scale wake field during the model tests to gain insights on scale effects of the ESDs. At the same time, computational fluid dynamics (CFD) calculations are also carried out in order to further deepen the understanding of the working principles of the selected ESDs, and to assist the ESDs designs under certain guidelines. Some of the results of the study have been published to the Greenship’2011 Conference (Dang et al 2011). The flow details around the propulsion system with the PDS, which were obtained by both PIV measurements and CFD calculations, and the energy balance of the ship-propulsion system with a PDS are further investigated and reported here. Based on the results of the studies, the principle guidelines for ESD designs for single screw merchant ships have been proposed. },
keywords = {CFD, ESD, Fuel consumption},
pubstate = {published},
tppubtype = {conference}
}
The Maritime Research Institute Netherlands (MARIN) has recently started a Joint Industry Project (JIP) called ESD-JILI, investigating the working principles of energy saving devices (ESDs). Within the framework of this JIP, three ESDs have been selected and thoroughly investigated. They are a Pre-Duct with an inner Stator (PDS), a Pre-Swirl Stator (PSS) with asymmetric blade design and Hub Fins (HFs). The investigations have been carried out by using dedicated force and moment sensors to measure all the components of the ESDs independently during the propulsion tests, by using Particle Image Velocimetry (PIV) to measure the flow before, in-plane and behind the propeller and the ESDs, and by using Smart Ship Model technology (Wijngaarden 2011) to simulate the full-scale wake field during the model tests to gain insights on scale effects of the ESDs. At the same time, computational fluid dynamics (CFD) calculations are also carried out in order to further deepen the understanding of the working principles of the selected ESDs, and to assist the ESDs designs under certain guidelines. Some of the results of the study have been published to the Greenship’2011 Conference (Dang et al 2011). The flow details around the propulsion system with the PDS, which were obtained by both PIV measurements and CFD calculations, and the energy balance of the ship-propulsion system with a PDS are further investigated and reported here. Based on the results of the studies, the principle guidelines for ESD designs for single screw merchant ships have been proposed.
2011
Zondervan, Gert-Jan; Dang, Jie
MARIN spearheads propulsion improvements Journal Article
In: MARIN Report, no. 104, pp. 16-17, 2011.
Abstract | Links | BibTeX | Tags: CFD, efficiency, ESD, Fuel consumption, propeller
@article{zondervan2011,
title = {MARIN spearheads propulsion improvements},
author = {Gert-Jan Zondervan and Jie Dang},
url = {http://www.marin.nl/web/Publications/Publication-items/MARIN-spearheads-propulsion-improvements.htm},
year = {2011},
date = {2011-12-01},
journal = {MARIN Report},
number = {104},
pages = {16-17},
abstract = {Fuel saving and emission reduction are motivating factors in the drive to improve marine propulsor technology and in the renewed interest in special devices that improve propulsion. Together with the industry, MARIN is actively investigating their working principles and the critical design aspects, using modern design and analysis tools.},
keywords = {CFD, efficiency, ESD, Fuel consumption, propeller},
pubstate = {published},
tppubtype = {article}
}
Fuel saving and emission reduction are motivating factors in the drive to improve marine propulsor technology and in the renewed interest in special devices that improve propulsion. Together with the industry, MARIN is actively investigating their working principles and the critical design aspects, using modern design and analysis tools.
Hagesteijn, Gerco; Hooijmans, Patrick
Ship Design for Minimal Fuel Consumption in Everyday Use Conference
Design and Operation of Tankers, Athens, Greece, The Royal Institution of Naval Architects 2011.
Abstract | Links | BibTeX | Tags: added resistance in waves, Design for service, Fuel consumption, speed loss, voyage simulation
@conference{Hagesteijn2011,
title = {Ship Design for Minimal Fuel Consumption in Everyday Use},
author = {Gerco Hagesteijn and Patrick Hooijmans},
url = {http://www.marin.nl/web/Publications/Publication-items/Ship-Design-for-Minimal-Fuel-Consumption-in-Everyday-Use.htm
http://www.rina.org.uk/search_publications.html
},
year = {2011},
date = {2011-06-08},
booktitle = {Design and Operation of Tankers, Athens, Greece},
organization = {The Royal Institution of Naval Architects},
abstract = {Ships are in general designed to first meet their contract speed, which is most times their trial speed. The ship design efforts are dominated by the focus to attain this trial speed. The resulting hull lines design philosophy will most likely not result into the most full efficient design in service conditions. Increasing fuel costs and low freight rates drive the need to design ships for their service conditions. It's operational draughts and added resistance due to waves that should be the key drivers for a successful modern ship design. The last years MARIN has tested and expanded its tools and capacities to support hull form design for minimal fuel consumption in everyday use, minimizing SOx and NOx emissions. Tools suchs as viscous flow calculations in an explorer mode, calculating numerous hull form variations overnight in order to maximize the performance of the vessel, and voyage simulations to determine true service margins are essential when designing a ship.},
keywords = {added resistance in waves, Design for service, Fuel consumption, speed loss, voyage simulation},
pubstate = {published},
tppubtype = {conference}
}
Ships are in general designed to first meet their contract speed, which is most times their trial speed. The ship design efforts are dominated by the focus to attain this trial speed. The resulting hull lines design philosophy will most likely not result into the most full efficient design in service conditions. Increasing fuel costs and low freight rates drive the need to design ships for their service conditions. It's operational draughts and added resistance due to waves that should be the key drivers for a successful modern ship design. The last years MARIN has tested and expanded its tools and capacities to support hull form design for minimal fuel consumption in everyday use, minimizing SOx and NOx emissions. Tools suchs as viscous flow calculations in an explorer mode, calculating numerous hull form variations overnight in order to maximize the performance of the vessel, and voyage simulations to determine true service margins are essential when designing a ship.
2005
Allema, Jaap
Intercepting the Interceptor Journal Article
In: MARIN Report, no. 86, pp. 6, 2005.
Abstract | Links | BibTeX | Tags: aft body, cruise, Energy Saving Device, ESD, Fuel consumption, interceptor, resistance
@article{Allema2005,
title = {Intercepting the Interceptor},
author = {Jaap Allema},
url = {http://www.marin.nl/web/Publications/Publication-items/Intercepting-the-Interceptor-at-MARIN.htm},
year = {2005},
date = {2005-09-01},
journal = {MARIN Report},
number = {86},
pages = {6},
abstract = {Although more associated with semi-planing motoryachts and other fast craft,such as patrol boats,theInterceptor is now being deployed on several models oflarge merchant vessels tested in MARIN basins.Reportplots the progress of the Interceptor as demand grows.},
keywords = {aft body, cruise, Energy Saving Device, ESD, Fuel consumption, interceptor, resistance},
pubstate = {published},
tppubtype = {article}
}
Although more associated with semi-planing motoryachts and other fast craft,such as patrol boats,theInterceptor is now being deployed on several models oflarge merchant vessels tested in MARIN basins.Reportplots the progress of the Interceptor as demand grows.