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Maritime Files

Marine Engineering

Study material and Knowledge files for the Marine Engineers like Motor,Naval Architecture,Marine Engineering Practice,etc.

Detailing every thing about the marine diesel engines and their associated system and its element.(Total 149 pages)

Navies around the world are increasingly aware of the need to prove to the public and politicians that their submarines are safe – for their crews and the environment. The trouble is that only the world’s biggest navies have the personnel and know-how to test the safety of their submarines in service or any new buildings and check the quality of maintenance work. The solution is to put the quality assurance process in the hands of a classification society. That is precisely what the South African Navy did. And as a result, Germanischer Lloyd (GL) is proud to announce that the world’s first naval submarine to receive a Certificate of Class is certified by GL. This article will highlight the benefits of classing a naval submarine and report on the experience made with classing the fist naval submarines.

Sharing firsthand experience outlines of course project on ‘Marine power plants operation’ completed by students of National University of Shipbuilding majoring in ‘Marine Power Plants and Equipment’ during the completion stage of studies are given. The project includes determining time characteristics of vessel’ life, her age and time after last docking, corresponding to the moment of measurements taken and calculations performed. In a certain point of shipping line weather conditions and low-speed main engine output are determined, specific, hourly and daily fuel consumption and flows of heat, mechanical and electric energy at full speed are calculated.

Maritime operations have become safer and cleaner but the maritime industry still faces pressures to improve its performance, despite offering very efficient and effective transportation. Marine scientists and engineers face a challenge as a result of the “zero tolerance” by society of maritime accidents and pollution incidents. The author reflects on his experiences gained from nearly thirty years with Lloyd’s Register, where he has taken a keen interest in the lessons that can be learned from accidents and incidents, to produce an insight into these challenges. To meet the demands for specialised capabilities, efficiency and the increasing challenge of reducing pollution it is almost inevitable that engineering systems have become more complex and sophisticated. The challenge now lies in making sure that engineering systems are reliable in use and capable of operation by the crew of average competence. This demands a fresh look at issues such as redundancy, integrity, usability and quality. The challenge can only be met by a well educated and experienced maritime community. It will need the combined expertise of marine scientists and marine engineers, working together, to understand the competitive tensions between different demands and to find sustainable solutions. The oceans will form an essential element of man’s future. Maritime operations will be an important contributor to humankind. The challenge is to make this all happen without loss of life and environmental damage. The author presents a personal perspective which reflects on recent experience and sets out an agenda for the future based on the “zero tolerance” of society, technology advance and the associated demands on education, skills and training.

This paper relates to the current drive to use LNG as the main fuel for propulsion and auxiliary machinery on non-gas ships – a move that has obvious benefits in both environmental and economic terms. The author examines whether there might be some serious cause for concern if this is carried out without proper management and control, given the vast differences between conventional fuels and LNG. It is based on a lecture delivered at Warsash Maritime Academy to a meeting of the Joint Southern Branch of RINA-IMarEST on 12 January 2012.

The number of electrically propelled vessels at sea has increased significantly and with this increased electrification of vessels the risk of personnel experiencing an injury due to electricity has risen due to the higher levels of voltage and especially current used in the electrical system. Electrical shock is the main hazard type that is normally identified when discussing electrical hazards, however, electric shock is not the only hazard type arising from electricity. Electrical workers are commonly exposed to another type of hazard: Arc Flash.

This dissertation studies an approach of improving fire safety onboard: safety by design. Statistics and analysis of fire onboard are given in order to shows the situation and the trends in ship fires. The author then briefly reviews some major fire casualties on board ships and lessons learned from these casualties.

The traditional ways of fire protection fall into three areas: structural fire protection, fire detection and fire extinguishing. The design of fire detection and alarm systems should be in such a way that the fire can be discovered and located quickly and efficiently. Fireextinguishing devices should be capable to extinguish the minor fires and control the spread of large fires. The agents used should be suitable for the types of fire.

This dissertation is a study of the non-convention ferry safety issue and the inland waterways of Bangladesh to identify the needs of technical support for improving the ferry safety through translating the potentiality of the inland waterways as a multimodal element. Ensuring non-convention ferry safety is an important issue for Bangladesh as it is for developing countries like Somalia, Indonesia, Congo and Senegal. Each year hundreds of people die in these nations because of nonconvention ferry accidents. In Bangladesh non-convention ferry accident is a regular phenomenon where poor rural people suffer most as it is the only effective transportation system for them. No effectual and sustainable measures have been detected so far in Bangladesh to prevent the non-convention ferry accidents which indicate the lack of expertise, resources and support. This research studies the causes of the ferry accidents in Bangladesh concentrating on the examination of the geographical, regulatory and operating environments of the non-convention vessels in the backdrop of the entire transportation system. It also examines the level of technology and business environment within the non-convention ferry sector and the inland waterways to apprehend the potentiality of the sector.

This dissertation(Submitted in 2006) is a study of the viability of commercialization of the Wing-In-Ground (WIG) craft, which is a novel type of marine transportation, currently being developed, so not yet commercialized in full scale. A brief look is taken at present development, and at the historical overview of WIG craft.

The main principles and technical issues of WIG craft are examined, taking into account whether there are technical barriers or not. On account of the inherent peculiarities of WIG craft, which possess the characteristics of both aircraft and ship, the legal status of WIG craft is obscure to some extent. The legal status of WIG craft is involved with IMO and ICAO, current international legislations and legal issues of WIG craft are examined.

 

This dissertation is the study of mechanical properties and microstructures of HighStrength Low-Alloy steels primarily used in military ship construction. Their improved properties compared to mild steels and higher strengths allow a reduction in plate thickness, stiffener size and results in a ship of lighter weight with greater load carrying capacity.

This dissertation is attempting to focus on fuel cells adoption onboard merchant ships, illustrate current status, prove future opportunities, investigate the barrier, and find solution for promoting fast adoption.

The qualitative approach was utilized to review the development and identify the barriers. Further research was conducted through a survey for which respondents were chosen from maritime administrations, classification societies, shipbuilders, ship owners and fuel cells makers. Statistical analysis was conducted in descriptive and chi-square analysis.

There are 41 existing fuel cells projects in surface ships which were identified from open literature. Those projects were dominated by small vessels, mostly yachts or sailboats, with few numbers of water taxis, a whale watching ship, an offshore vessel and a car carrier. However, this could demonstrate different fuel cells technology in different applications; furthermore, current increasing number of projects shows opportunity on future development.

The Tonnage Measurement Convention is the only existing international standards for tonnage measurement of ships. During the last four decades, ship design and operation systems have been changed drastically. Even new type of ships appeared gaining the economic advantage by exploiting a kind of loophole of the Convention and drove rival ships away from the fleet. Most merchant ships are likely to have incentives to reduce gross tonnage (GT) to achieve the economic benefits that are most prominent. Yet there are ships which are not limited by the restriction of the GT based threshold.

By NAM, DONG | In September 1997, the Protocol of 1997 to MARPOL 73/78 was adopted to introduce the new Annex VI - Air pollution from ships. When the Protocol enters into force, the requirements of the NOx will be applied to each diesel engine with a power output of more than 130 kW which is installed on a ship, or which undergoes major conversion, on or after 1 January 2000. Annex VI deals with a wide range of air pollution control matters including regulations on halons, Hydrochlorofluorocarbons (HCFCs) and other ozone depleting substances, Nitrogen oxides (NOx), Sulphur oxides (SOx), Volatile organic compounds (VOCs), shipboard incinerators and fuel oil quality. However, the main focus has so far been on reducing the NOx.

The NOx Technical Code introduces a new concept of engine family, engine group, parent engine and the technical file to be determined before issuing the Engine International Air Pollution Prevention Certificate (EIAPP Certificate) and the International Air pollution Certificate (IAPP Certificate). Because the new Annex VI has not yet come into force, guidelines have been introduced to issue a Statement of Compliance (SOC Certificate).

NOx formation builds up by reaction between nitrogen and oxygen in the combustion air (thermal NOx), by reaction between exhaust gas hydrocarbon and combustion air oxygen (prompt NOx) and by reaction between nitrogen bindings in fuel (fuel NOx).

Thermal NOx is decisive for total emission and all the reducing methods are targeted to reduce that component. NOx emission can be reduced by primary methods such as retard injection, fuel nozzle modification, change of compression ratio, water direct injection, water emulsification, exhaust gas recirculation (EGR) and secondary method such as selective catalytic reduction (SCR).

 

A 6-paged, document on sprinkler system explaining the system and its regulation.

All about this now banned, but once a very popular Fire-fighting gas.

A very useful document for all marine engineers by Chevron | Crude oil . How is a crude oil field formed? . Composition and classification of crude oil . Crude oil refining and stocks for marine fuel blending . Fuel oil. Fuel oil applications. Fuel specifications. Significance of the marine fuel properties listed in ISO 8217:2005 . Correspondence of specifications and test methods. Test specifications and precision . Onboard fuel oil treatment . Conventional cleaning with purifiers/clarifiers. Advanced computer-driven fuel cleaning system. Fuel oil stability and compatibility . Commingling of fuels. Microbiological contamination. Fuel contamination in lubricants  

A 7-Paged document on the subject for operational level.

A 4-page essential on Engine's crosshead, for operational level.

 
 
Golden Bollard 2017
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