Techno-economic investigation of alternative propulsion plants for Ferries and RoRo ships

Abstract

This version is available at https://strathprints.strath.ac.uk/47206/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the AbstractIn this paper, the main alternative propulsion plants based on reciprocating internal combustion engines of a ferry or RoRo ship operating in routes that include Emission Control Areas (ECAs) are comparatively assessed. Specifically, a dual fuel engine propulsion plant is compared with a conventional Diesel engine plant. For both cases, the installation of a Waste Heat Recovery system, which covers a part of the ship electric energy demand, is also considered. The ship main DF engines are assumed to operate using LNG and a small amount of MDO for initiating combustion, whereas low sulphur MDO was regarded as the fuel for the case of the Diesel engine plant. The installation of selective catalytic reduction (SCR) after-treatment unit for reducing the NOx emissions for the case of Diesel engines plant is also taken into account. The propulsion plants were modelled under steady state conditions, and the simulation results were analysed in order to compare the alternative configurations.Furthermore, the energy efficiency design index (EEDI) values were calculated and the two examined propulsion system cases were compared on EEDI basis. Finally, the Life Cycle Cost for each alternative propulsion plant was calculated and used for completing an economic evaluation of the Dual fuel propulsion plant versus the conventional designs applied in ferries.

Conceptualization of research of power hybrid electric power complexes

“…Stringent requirements of environmental protection, the future transition to a more expensive fuel grades with low sulfur content, reduction of harmful emissions, reduction of the noise characteristics of vessels in certain areas of navigation, allocation of certain areas of shipping and ports, which excludes the work of ship diesel engines cause the need to find alternative energy sources that meet the increased requirements of maritime and environmental legislation [1].…”

Power management optimization of hybrid power systems in electric ferries

“…In addition, the fluctuation of oil prices required the incentive to investigate more technologically advanced and efficient solutions to reduce operational expenses in the transportation industry [3,4]. Therefore, the industry has collectively been exploring other opportunities for emissions control and energy savings which range from burning low emission fuels such as liquefied natural gas [1] and using dual fuel [5] to progressively electrify ships through increasing hybridization [6]. In the same context, the IMO suggested the concept of hybrid electric vessels as one of the energy efficient index to control and limit a vessel's emissions [7].…”

“…mission regulations imposed by the international marine organization (IMO), along with growing concerns on the environment, are causing a major shift in the industry's approach to propulsion system design and increasing the demand for environmentally friendly marine power system solutions [1,2]. In addition, the fluctuation of oil prices required the incentive to investigate more technologically advanced and efficient solutions to reduce operational expenses in the transportation industry [3,4].…”

Making shipping greener: comparative study between organic fluids and water for Rankine cycle waste heat recovery

“…Water is a safe working fluid, although there are always dangers associated with HP steam. Marine RC WHRSs have been researched by Hatchman (1991), Tien et al (2007), Theotokatos and Livanos (2012), Benvenuto et al (2014), Dimopoulos et al (2014), Livanos et al (2014) and Sakalis and Frangopoulos (2014). WHRSs for shipping based on the RC have been manufactured and applied with success (Schmid 2004;MAN Diesel & Turbo 2012).…”