Dynamic performance simulation of combined gas electric and steam power plants for cruise-ferry ships

Dotto, A.; Sacchi, Riccardo; Satta, Francesca; Campora, Ugo

doi:10.1016/j.nxener.2023.100020

Cited by 4 publications

(2 citation statements)

References 36 publications

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“…Thus, hybrid power, characterized by load splitting, benefits the improvement of the transient performance of the gas engine's power systems. The implementation of the hybrid power system to assist ship propulsion and enlarge system reliability through load peak shafting has been confirmed in many studies based on the diesel engines and gas turbines on ships [130][131][132]. In contrast, less research has been conducted on marine gaselectric power systems.…”

Section: Power Management and Grid Control Developmentmentioning

confidence: 99%

Transient Performance of Gas-Engine-Based Power System on Ships: An Overview of Modeling, Optimization, and Applications

Wu,

Li,

Chen

et al. 2023

JMSE

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Liquefied natural gas (LNG) is widely regarded as the midterm solution toward zero-carbon transportation at sea. However, further applications of gas engines are challenging due to their weak dynamic load performance. Therefore, the comprehension of and improvements in the dynamic performance of gas-engine-based power systems are necessary and urgent. A detailed review of research on mechanisms, modeling, and optimization is indispensable to summarize current studies and solutions. Developments in engine air-path systems and power system load control have been summarized and compared. Mechanism studies and modeling methods for engine dynamic performance were investigated and concluded considering the trade-off between precision and simulation cost. Beyond existing studies, this review provides insights into the challenges and potential pathways for future applications in decarbonization and energy diversification. For further utilization of clean fuels, like ammonia and hydrogen, the need for advanced air–fuel ratio control becomes apparent. These measures should be grounded in a deep understanding of current gas engines and the combustion characteristics of new fuels. Additionally, the inherent low inertia feature of electric power systems, and consequently the weak dynamic performance when adopting renewable energies, must be considered and studied to ensure system reliability and safety during transient conditions.

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Section: Power Management and Grid Control Developmentmentioning

confidence: 99%

Transient Performance of Gas-Engine-Based Power System on Ships: An Overview of Modeling, Optimization, and Applications

Wu,

Li,

Chen

et al. 2023

JMSE

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“…COGES marine power plants are proven to increase cogeneration efficiency on ferries and cruise ships. Compared with reciprocating engines, COGES plants yield cogeneration efficiency gains of 1-5%, with a maximum total efficiency of 51% [27].…”

Section: Introductionmentioning

confidence: 99%

Techno-Economic Analysis of Combined Gas and Steam Propulsion System of Liquefied Natural Gas Carrier

Budiyanto,

Putra,

Riadi

et al. 2024

Energies

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Various combinations of ship propulsion systems have been developed with low-carbon-emission technologies to meet regulations and policies related to climate change, one of which is the combined gas turbine and steam turbine integrated electric drive system (COGES), which is claimed to be a promising ship propulsion system for the future. The objective of this paper is to perform a techno-economic and environmental assessment of the COGES propulsion system applied to liquefied natural gas (LNG) carriers. A propulsion system design for a 7500 m3 LNG carrier was evaluated through the thermodynamics approach of the energy system. Subsequently, carbon emissions and environmental impact analyses were carried out through a life cycle assessment based on the power and fuel input of the system. Afterwards, a techno-economic analysis was carried out by considering the use of boil-off gas for fuel and additional income from carbon emission incentives. The proposed propulsion system design produces 1832 kilowatts of power for a service speed of 12 knots with the total efficiency of the system in the range of 30.1%. The results of the environmental evaluation resulted an overall environmental impact of 10.01 mPts/s. The results of the economic evaluation resulted in a positive net present value and a logical payback period for investment within 8 years of operation. The impact of this result shows that the COGES has a promising technological commercial application as an environmentally friendly propulsion system. Last, for the economy of the propulsion system, the COGES design has a positive net present value, an internal rate return in the range of 12–18%, and a payback period between 6 and 8 years, depending on the charter rate of the LNG carrier.

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Techno-economic optimization of hybrid-electric power plants onboard cruise ships

Dotto,

Satta

2023

Energy Conversion and Management: X

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Dynamic performance simulation of combined gas electric and steam power plants for cruise-ferry ships

Cited by 4 publications

References 36 publications

Transient Performance of Gas-Engine-Based Power System on Ships: An Overview of Modeling, Optimization, and Applications

Transient Performance of Gas-Engine-Based Power System on Ships: An Overview of Modeling, Optimization, and Applications

Techno-Economic Analysis of Combined Gas and Steam Propulsion System of Liquefied Natural Gas Carrier

Techno-economic optimization of hybrid-electric power plants onboard cruise ships

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