Abstract:Given the stricter environmental regulations and rising oil prices, means of transportation based on eco-friendly fuel are drawing increased attention. Electric propulsion systems (EPSs) have been applied to various means of transportation, including cars, and many studies have examined ships equipped with EPSs. Generally, because of the low energy density of the battery, EPS-equipped vehicles experience the disadvantages of limited operating time and distance compared to fossil fuel-based vehicles. In this st… Show more
“…However, in the case of low speeds, this can be obtained through electric generators. The second option shows the possibility of providing the energy required for propulsion through a group of batteries that give a high capacity of direct current (DC), and then this energy could be reserved in energy storage (ES) before converted into alternator current (AC) through a DC-AC inverter (Magdalena and Wojciech 2019 ; Lee et al 2014 ). Fig.…”
Section: Description Of Alternative Electric Propulsion Systems For Pmentioning
The International Maritime Organization (IMO) announced that maritime transport share by 2.89% in global greenhouse gases. Electric propulsion system appears as a promising option for reducing ship emissions, especially for high-powered vessels. The aim of the current paper is to investigate the environmental and economic impact of using electric propulsion systems. Simple eco-environmental model was presented to assess the best propulsion system for passenger ships. A comparison between diesel electric (DE) and combined gas turbine electric and steam (COGES) propulsion systems is conducted. As a case study, one of the cruise ships is selected. The results showed specific environmental benefits of COGES over DE propulsion option. From the design and operational viewpoints, COGES propulsion system is more energy efficient than DE by 9.3% and 27.55%, respectively. Economically, the values of the life cycle costs are 5,013 and 6,042 $/kW for DE and COGES systems, respectively. Finally, COGES seems as a greener option with a life-cycle cost-effectiveness of 612, 1970, and 6 $/ton for NO
x
, SO
x
, and CO
2
emissions, respectively.
“…However, in the case of low speeds, this can be obtained through electric generators. The second option shows the possibility of providing the energy required for propulsion through a group of batteries that give a high capacity of direct current (DC), and then this energy could be reserved in energy storage (ES) before converted into alternator current (AC) through a DC-AC inverter (Magdalena and Wojciech 2019 ; Lee et al 2014 ). Fig.…”
Section: Description Of Alternative Electric Propulsion Systems For Pmentioning
The International Maritime Organization (IMO) announced that maritime transport share by 2.89% in global greenhouse gases. Electric propulsion system appears as a promising option for reducing ship emissions, especially for high-powered vessels. The aim of the current paper is to investigate the environmental and economic impact of using electric propulsion systems. Simple eco-environmental model was presented to assess the best propulsion system for passenger ships. A comparison between diesel electric (DE) and combined gas turbine electric and steam (COGES) propulsion systems is conducted. As a case study, one of the cruise ships is selected. The results showed specific environmental benefits of COGES over DE propulsion option. From the design and operational viewpoints, COGES propulsion system is more energy efficient than DE by 9.3% and 27.55%, respectively. Economically, the values of the life cycle costs are 5,013 and 6,042 $/kW for DE and COGES systems, respectively. Finally, COGES seems as a greener option with a life-cycle cost-effectiveness of 612, 1970, and 6 $/ton for NO
x
, SO
x
, and CO
2
emissions, respectively.
“…This wave of green supply chain management counseling, you need to clearly inform suppliers of green specification requirements related to content, dismantling methods, content and format of information to fill in the declaration described, with the flow and delivery schedule, simultaneous testing and certification, auditing, etc. and other relevant measures to ensure that incoming conform itself with the customer's green specifications, but also in order to enhance physical fitness and preparedness of the supplier of green product management; also need to be switched with lead free solder process equipment and management processes, implementation staff education and training, in order to confirm the incoming and process which will not produce pollution, to ensure that products meet green specifications [24][25][26][27] as Fig. 1.…”
Traditional information system and managerial mechanism cannot meet the new environment protection regulations; therefore, a new solution must be set up, else it may run the risk of losing the market and the value of product brand.This research focuses on the solutions provided by the network and communication industry, manufacture of the green products, and the establishment of a Webbased green collaboration management system, which incorporates the environment protection requests into the product development and green supply chain activities. There are three goals: (1) For the design of green products, green components and product management are set up for the purpose of de-toxin and ease of disassemble; (2) For the green supply chain, the management of hazardous substances, product recycle and disassemble are set up; (3) For the product recycling management, the recycling information is feedback for the product update and collaboration operation. The result of research can provide information for the integration of workflow and information system currently in use, provide RoHS and WEEE management solutions, and set up green collaboration information system, so that green products, brand leadership, and environment protection endeavor can be assured.
“…As an alternative to the regulations, there is an integrated power system (IPS) that integrates and operates propulsion power and auxiliary power. The design and operation of IPSs has the advantage of being able to significantly reduce air pollutant emissions while increasing energy efficiency [7][8][9][10]. In the past, mechanical propulsion systems using diesel engines or gas turbine engines, which are internal combustion engines, were applied.…”
With the strengthening of international environmental regulations, many studies on the integrated electric propulsion systems applicable to eco-friendly ship are being conducted. However, few studies have been performed to establish a guide line for the overall pure electric propulsion ship design. Therefore, this paper introduces the comprehensive design of DC shipboard power system for pure electric propulsion ship based on battery energy storage system (BESS). To design and configure the pure electric propulsion ship, 2 MW propulsion car ferry was assumed and adopted to be the target vessel in this paper. In order to design the overall system, a series of design processes, such as the decision of the ship operation profile, BESS capacity selection, configuration of the power conversion systems for propulsion, battery charging/discharging procedures, classification of system operation modes, and analysis of the efficiency, were considered. The proposed efficient design and analysis of the pure electric propulsion ship was qualitatively and quantitatively validated by MATLAB Simulink tool. The methodology presented in this paper can help design real ships before the system commissioning.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
