Energy Efficient Safe Ship Operation (SHOPERA)

2015 ◽  
Author(s):  
Apostolos Papanikolaou ◽  
George Zaraphonitis ◽  
Elzbieta Bitner-Gregersen ◽  
Vladimir Shigunov ◽  
Ould El Moctar ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Assessment Procedure ◽  
Major Step ◽  
Ongoing Research ◽  
Method Of Calculation ◽  
Adverse Conditions ◽  
Energy Efficiency Design Index ◽  
Ship Operation ◽  
Propulsion Power ◽  
Engine Power

The 2012 guidelines on the method of calculation of the attained Energy Efficiency Design Index (EEDI) for new ships, MEPC.212(63), as updated by MEPC 245(66) in April 2014, represent a major step forward in implementing energy efficiency regulations for ships through the introduction of the EEDI limits for various types of ships. There are, however, serious concerns regarding the sufficiency of propulsion power and steering devices to maintain maneuverability of ships in adverse conditions, hence regarding the safety of ships, if the EEDI requirements are achieved by simply reducing the installed engine power. This was the rationale for a new EU funded research project with the acronym SHOPERA (2013-2016), aiming at developing suitable methods, tools and guidelines to effectively address the above concerns. The paper discusses the background of the ongoing research in project SHOPERA, presents early and intermediate results of the project and discusses certain fundamental issues regarding the formulation of proper criteria and practical assessment procedure for ship’s maneuverability and safety under adverse conditions.

Boosting Ship Efficiency

2010 ◽  
Author(s):  
Oskar Levander
Keyword(s):  
Energy Efficiency ◽  
Life Cycle Cost ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Power Demand ◽  
Reduce Fuel Consumption ◽  
Reduce Emissions ◽  
Energy Efficiency Design Index ◽  
Propulsion Power

Ship efficiency has become an increasingly important subject for ship designers and owners. Both the predicted high cost of fuel in the future and the need to reduce emissions is driving this strive for improved efficiency. IMO is also seeking measures to reduce the CO2 emissions from ships and their proposed Energy Efficiency Design Index (EEDI) aims at ensuring that future vessels will be more efficient. Two ship concepts, a large RoRo vessel and a Cruise ferry, have been developed to highlight different technologies that can be used to improve efficiency. The designs show that the power demand can be reduced significantly with already basic naval architecture methods. Optimization of main dimensions for life cycle cost rather than building cost alone can give large savings. Also new propulsion concepts, such as triple shaft lines or Wing thrusters yield clear propulsion power savings. Other measures to reduce fuel consumption, such as waste heat recovery and wind power also show big gains.

scholarly journals CO2 emission level as a criterion in modern transport ship design

2014 ◽  
Vol 156 (1) ◽  
pp. 59-68
Author(s):  
Tadeusz SZELANGIEWICZ ◽  
Katarzyna ŻELAZNY
Keyword(s):  
Energy Efficiency ◽  
Co2 Emission ◽  
Ship Design ◽  
Propulsion Efficiency ◽  
Ship Propulsion ◽  
Co2 Levels ◽  
Specific Standard ◽  
Transport Ship ◽  
Energy Efficiency Design Index ◽  
Propulsion Power

From 2013 onwards Energy Efficiency Design Index (EEDI) for new ships has been in force. The EEDI value for a given ship is calculated according to a standard formula and compared against a ship specific standard by means of a so called reference line which will be gradually changing (decreasing) in subse-quent years. The article presents possible ways of increasing ship propulsion efficiency in order to de-crease ship propulsion power, EEDI value and CO2 levels.

scholarly journals An Energy Consumption Approach to Estimate Air Emission Reductions in Container Shipping

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 278
Author(s):  
Ernest Czermański ◽  
Giuseppe T. Cirella ◽  
Aneta Oniszczuk-Jastrząbek ◽  
Barbara Pawłowska ◽  
Theo Notteboom
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Early Stage ◽  
Management Plan ◽  
Policy Formulation ◽  
Container Shipping ◽  
Shipping Industry ◽  
Emission Reductions ◽  
Energy Efficiency Design Index ◽  
Carbon Dioxide Co2

Container shipping is the largest producer of emissions within the maritime shipping industry. Hence, measures have been designed and implemented to reduce ship emission levels. IMO’s MARPOL Annex VI, with its future plan of applying Tier III requirements, the Energy Efficiency Design Index for new ships, and the Ship Energy Efficiency Management Plan for all ships. To assist policy formulation and follow-up, this study applies an energy consumption approach to estimate container ship emissions. The volumes of sulphur oxide (SOx), nitrous oxide (NOx), particulate matter (PM), and carbon dioxide (CO2) emitted from container ships are estimated using 2018 datasets on container shipping and average vessel speed records generated via AIS. Furthermore, the estimated reductions in SOx, NOx, PM, and CO2 are mapped for 2020. The empirical analysis demonstrates that the energy consumption approach is a valuable method to estimate ongoing emission reductions on a continuous basis and to fill data gaps where needed, as the latest worldwide container shipping emissions records date back to 2015. The presented analysis supports early-stage detection of environmental impacts in container shipping and helps to determine in which areas the greatest potential for emission reductions can be found.

scholarly journals A comparative review of the resistance of a 37,000 dwt Chemical Tanker based on experimental tests and calculations

2020 ◽  
Vol 1 ◽  
pp. 59-66
Author(s):  
Liviu Crudu ◽  
Radu Bosoancă ◽  
Dan Obreja
Keyword(s):  
Energy Efficiency ◽  
Experimental Tests ◽  
Full Scale ◽  
The Other ◽  
Towing Tank ◽  
Ship Resistance ◽  
Comparative Review ◽  
Cfd Applications ◽  
Energy Efficiency Design Index ◽  
Comparison Of The Results

The evaluation of ship resistance is of paramount importance having a decisive impact on the economic performances and efficiency depending on mission. If new IMO requirements through the Energy Efficiency Design Index (EEDI) are taken into account the necessity to have more and more accurate tools capable to consider the influences of different parameters became mandatory. The availability of towing tank facilities and the full scale trials are the practical means in order to be able to confirm the accuracy of theoretical formulations and to define the limits of CFD applications. Based on the results of the towing tank tests, a direct comparison with the results provided by classical methods and CFD computations can be systematically can be performed. On the other hand, the influences of the modifications operated on the fore part of the ship aretheoretically evaluated and compared with the towing tank results. Consequently, the paper is focused on the comparison of the results evaluated using different tools which have been carried out for a Chemical Tanker built by Constanta Shipyard Romania.

scholarly journals Influence of EEDI (Energy Efficiency Design Index) on Ship–Engine–Propeller Matching

2019 ◽  
Vol 7 (12) ◽  
pp. 425 ◽  
Author(s):  
Ren ◽  
Ding ◽  
Sui
Keyword(s):  
Energy Efficiency ◽  
Co2 Emission ◽  
Greenhouse Gas Emission ◽  
Propulsion System ◽  
Matching Theory ◽  
Matching Process ◽  
Marine Diesel ◽  
Energy Efficiency Design Index ◽  
Relationship Of ◽  
The Relationship

With the increasingly strict international GHG (greenhouse gas) emission regulations, higher requirements are placed on the propulsion system design of conventional ships. Playing an important role in ship design, construction and operation, ship–engine–propeller matching dominantly covers the CO2 emission of the entire ship. In this paper, firstly, a ship propulsion system matching platform based on the ship–engine–propeller matching principle and its application on WinGD 5 × 52 marine diesel engine have been investigated. Meeting the energy efficiency design index (EEDI) regulation used to calculate the ship CO2 emission is essential and ship–engine–propeller matching has to be carried out with EEDI into consideration. Consequently, a procedure is developed combining the system matching theory and EEDI calculation, which can provide the matching results as well as the corresponding EEDI value to study the relationship between EEDI and ship–engine–propeller matching. Furthermore, a comprehensive analysis is performed to obtain the relationship of EEDI and system matching parameters, such as ship speed, effective power and propeller diameter, reflecting the trend and extent of EEDI when changing these three parameters. The results of system matching parameters satisfying different EEDI phases indicate the initial value selection in matching process to provide reference for the design of ship, engine and propeller under the EEDI regulations.

Research on the Influence of Wind Energy on New Energy Utilization Coefficient of EEDI

2013 ◽  
Vol 744 ◽  
pp. 561-565 ◽  
Author(s):  
Cai Ling Li ◽  
Song Zhou ◽  
Ye Han
Keyword(s):  
Energy Efficiency ◽  
Wind Energy ◽  
Alternative Energy ◽  
Energy Utilization ◽  
Calculation Formula ◽  
Energy Technology ◽  
Utilization Coefficient ◽  
New Energy ◽  
Energy Efficiency Design Index ◽  
Great Harm

Currently, the emissions discharged by ships are becoming more and more serious, which brings a great harm to the atmospheric and marine environment. In order to solve the emissions, especially of CO2 emission, the new ship energy efficiency design index (EEDI) has been introduced to reduce it. According to EEDI calculation formula, the use of new energy technology can reduce marine EEDI. Nowadays, wind energy as a clean and renewable energy, is an ideal alternative energy to be applied on ships. But until now, there is still no definite calculation formula and value regulation to parameters involved in the application of new energy on ships, including new energy utilization coefficient.

Evaluations on Ship Performance Under Varying Operational Conditions

2015 ◽  
Author(s):  
Lokukaluge P. Perera ◽  
Brage Mo ◽  
Leifur Arnar Kristjánsson ◽  
Petter Chr. Jønvik ◽  
Jan Øivind Svardal
Keyword(s):  
Energy Efficiency ◽  
Emission Control ◽  
Management Plan ◽  
Modern Technology ◽  
Control Measures ◽  
Shipping Industry ◽  
Operational Conditions ◽  
Energy Efficiency Design Index ◽  
Main Engine ◽  
Emission Control Measures

Various emission control measures have been introduced in the recent years for improving vessel performance in the shipping industry. That consists of: Energy Efficiency Design Index (EEDI) for new ships and Ship Energy Efficiency Management Plan (SEEMP) and Energy Efficiency Operational Indicator (EEOI) for all ships. These emission control measures enforce the shipping industry to improve operational conditions and to implement modern technology for more energy efficient shipping fleets. Therefore, this study presents preliminary data analysis of a selected vessel for monitoring its performance along the ship routes. The results consist of observing vessel performance under several navigation parameters: ship GPS speed (i.e. speed over the ground), log speed, course, fuel consumption, main and auxiliary engine power, main engine shaft RPM, loading and draft conditions with respect to the route, voyage time and wind conditions. Furthermore, these parameters have been used to analyze potential and optimal energy usage situations in ship navigation with respect to the EEOI, in which represents an important part of the SEEMP.

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