Investigation of Diesel Hybrid systems for fuel oil reduction in slow speed ocean going ships

Dedes, E; Hudson, Dominic A.; Turnock, S.R.

doi:10.1016/j.energy.2016.07.121

Cited by 33 publications

(19 citation statements)

References 22 publications

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“…In [30], based on a multi-physical domain model, a conceptual hybrid propulsion system for a very large crude oil carrier (VLCC) has been studied for the potential benefit of improving the ship's safety and operability in heavy sea conditions without reducing the system efficiency. In [31] and [32], the potential benefits of hybrid propulsion for large ocean-going cargo vessels to increase fuel efficiency and reduce greenhouse gas emissions and pollutant emissions are investigated as well. In [33], the impact of battery-hybrid propulsion on the fuel consumption and emissions of an ocean-going chemical tanker when sailing in coastal and port areas during port approaches has been investigated.…”

Section: Introductionmentioning

confidence: 99%

Fuel Consumption and Emissions of Ocean-Going Cargo Ship with Hybrid Propulsion and Different Fuels over Voyage

Sui

Vos

Stapersma

et al. 2020

JMSE

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Hybrid propulsion and using liquefied natural gas (LNG) as the alternative fuel have been applied on automobiles and some small ships, but research investigating the fuel consumption and emissions over the total voyage of ocean-going cargo ships with a hybrid propulsion and different fuels is limited. This paper tries to fill the knowledge gap by investigating the influence of the ship mission profile, propulsion modes and effects of different fuels on the fuel consumption and emissions of the ship over the whole voyage, including transit in open sea and manoeuvring in close-to-port areas. Results show that propulsion control and electric power generation modes have a notable influence on the ship’s fuel consumption and emissions during the voyage. During close-to-port manoeuvres, propelling the ship in power-take-in (PTI) mode and generating the electric power by auxiliary engines rather than the main engine will reduce the local NOx and HC (hydrocarbons) emissions significantly. Sailing the ship on LNG will reduce the fuel consumption, CO2 and NOx emissions notably while producing higher HC emissions than traditional fuels. The hybridisation of the ship propulsion and using LNG together with ship voyage optimisation, considering the ship mission, ship operations and sea conditions, will improve the ship’s fuel consumption and emissions over the whole voyage significantly.

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Section: Introductionmentioning

confidence: 99%

Fuel Consumption and Emissions of Ocean-Going Cargo Ship with Hybrid Propulsion and Different Fuels over Voyage

Sui

Vos

Stapersma

et al. 2020

JMSE

View full text Add to dashboard Cite

show abstract

“…The problem of optimum fuel consumption has been studied in detail for vessels without energy storage [6] [7] and to some extent also for vessels with energy storage. In [8] a simple load leveling strategy is used, [9][10] [11] and [12] utilizes different online optimization techniques, [13] uses load prediction for the optimization while [14] and [15] utilizes offline optimization.…”

Section: Introductionmentioning

confidence: 99%

Design of Minimum Fuel Consumption Energy Management Strategy for Hybrid Marine Vessels with Multiple Diesel Engine Generators and Energy Storage

Guidi

2018

2018 IEEE Transportation Electrification Conference and Expo (ITEC)

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The paper presents an analytical method for estimation of the fuel saving potential resulting from installation of energy storage on-board of marine vessels equipped with multiple diesel engine generators. The method is based on quasisteady-state assumptions and does not require precise a-priori knowledge of the operating cycle of the vessel. The method also gives insight about the expected energy throughput of the storage system that can be directly related to its expected lifetime. Simple procedures are proposed for favorable trade-off between fuel saving and storage lifetime. The paper also shows how the off-line method can be extended to design high-level power flow control and energy management strategies for the engines and storage. Time-domain simulations with several load profiles having different characteristics are presented, showing the validity of the proposed approach.

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“…Lindstad and Sandaas [4] investigated the environmental advantage of hybrid offshore support vessels with dynamic positioning system, compared with a conventional diesel electrical system. Ling-Chin and Roskilly [5] introduced a new life cycle assessment (LCA) approach in order to evaluate the performance of a hybrid ro-ro cargo vessel in terms of environmental impact, whereas Dedes et al [6] investigated the economic impact of the hybrid system for slow speed ocean-going ships in terms of fuel saving. In addition,…”

Section: Overview Of Hybrid Shipsmentioning

confidence: 99%

Multi-criteria decision-making for marine propulsion: Hybrid, diesel electric and diesel mechanical systems from cost-environment-risk perspectives

et al. 2018

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The paper introduces a new decision-making process which is used to compare the performance of a ship with either diesel electric hybrid propulsion or conventional propulsion systems. A case study was carried out to compare the performance of both propulsions from cost, environmental and risk perspectives. This paper also overviews the modern approaches of multi-criteria decision-making and highlights some of their shortcomings in particular the fact that these approaches often rely on different criteria such as financial, environmental or risk. This paper aims to overcome this shortcoming by enhancing the process of multi-criteria decision analysis. The key process in this research was to convert all incomparable values into monetary values, thereby enabling the impacts of each criterion to be compared and integrated in a straightforward manner. Results of the case study showed that the use of a hybrid propulsion system could reduce annual operational costs by $ 300,000 (2 % total cost) compared with a diesel electric system and almost $ 1 million (7 %) compared to a diesel *Revised Manuscript with No Changes Marked mechanical propulsion system. In order to investigate the optimal use of the hybrid propulsion system, various operational scenarios were identified and applied to the proposed decision-making process. The results showed that operating the ship in hybrid mode during manoeuvring and berthing is more desirable as the holistic cost can reduce in almost $ 1 million. The advantages of the proposed decision making process was illustrated by comparing the results obtained from a conventional decision-making process using the analytical hierarchical method. It is believed that the research findings not only present general understanding of the possible advantages of hybrid propulsion for stakeholders, but provide them with an insight into the enhanced approach into the multi-criteria decision analysis.

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Investigation of Diesel Hybrid systems for fuel oil reduction in slow speed ocean going ships

Abstract: The volatile world economy and the adoption of stricter emission policies from the European

Cited by 33 publications

References 22 publications

Fuel Consumption and Emissions of Ocean-Going Cargo Ship with Hybrid Propulsion and Different Fuels over Voyage

Fuel Consumption and Emissions of Ocean-Going Cargo Ship with Hybrid Propulsion and Different Fuels over Voyage

Design of Minimum Fuel Consumption Energy Management Strategy for Hybrid Marine Vessels with Multiple Diesel Engine Generators and Energy Storage

Multi-criteria decision-making for marine propulsion: Hybrid, diesel electric and diesel mechanical systems from cost-environment-risk perspectives

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