NP 018-019-020 Baltic Pilot Volume I-II-III
The best maritime and offshore library
Let us talk a bit more about the barge carrying vessels, playing a very important role in the maritime shipping industry of today, and particularly in transportation of the heavy cargoes. See the previous article for the main discussion. Here we will mainly focus on the SEABEE type of vessel, i.e. the second one.
For the SEABEE type of vessel to empty a full vessel or load a full cargo of barges, giving a theoretical loading or discharge time of 13 hours, it will actually require a theoretical cargo handling total of 64 hours for each round trip, although allowing a 50 percent margin for unforeseen delays, the total cargo handling time is expected to be about four days.
Each barge deck of the SEABEE can accommodate two barge widths, with the upper deck having a capacity for 14 barges while the main and lower decks are each suitable for twelve units, with each hold stowage area measuring 11.1 m (36.54 ft) wide by 5.9 m (19,30 ft) high. As the upper deck is free of obstructions, except in the forward area, it is possible to carry double-width barges or up to ten open-type barges with cargoes of unlimited height, i.e. restricted only by the barge stability limit. It is also possible to carry containers on the top of the upper deck standard type barges.
The present document prepared by the specialists of one of the most authoritative entities in the world of maritime shipping has been released with the specific aim to provide required technical guidance to the crew members of the vessels engaged in marine transportation of the natural liquefied gas. The material contained in the book draws on the remarkable experience of the authors, all of them being recognized members and experts of the gas industry.
Their collaboration has eventually resulted in this guidebook explaining the established best practices for the proper management of the shipping operations in the ports. The authors have also illuminated the profile of the risks commonly associated with the gas operations - this information will be useful to the persons administering the ports and providing the essential services.
The publication shall definitely be treated as a very essential guidance for all people dealing with the design, construction and subsequent operation and maintenance of the LNG terminals in the ports as the information contained in its pages can be used when conducting the reassessment of the risks that are subject to frequent changes taking into account the nature of the operations.
The content of the present guide bases on the version 22.214.171.124 of the PC Maritime NavMaster electronic chart display information system and continues the series of the guide training modules. The previous releases addressed the ECDIS developed by the world known manufacturers, including JRC JAN-701B-901B-2000, Kongsberg K-Bridge, eGlobe G2, Furuno FMD 3X00 and FEA 2X07, Kelvin Hughes MantaDigital, Maris ECDIS 900 and OSI ECPINS.
The material arrangement remained same as it was in the other sets. The booklet accompanying the video training files contains the information covering all important aspects of the use and maintenance of the subject systems. The set will be great when used both onboard any ship with the PC Maritime NavMaster system installed and when used for training purposes by the people willing to get themselves duly familiarized with the arrangement and operating principles of the ECDIS or get better and deeper understanding of this particular one.
All explanations and instructions provided in the booklet and in the videos are very clear and easy to follow so it can be used by both professional navigators and students who will all appreciate the structure of the set.
The known and researched world gas reserves exceed those of oil. However, for so many years the gas has not attracted too much interest. It was rather considered a sort of hindrance by the people engaged in the oil recovery. The associated gas used to be flared. The wells containing no oil but a plenty of gas used to be totally ignored. The first practical attempts for gas production were made at the beginning of the last century.
People had finally recognized the potential of gas reserves to change the way of their living. The development of gas reserves has eventually led to the need for its transportation which, noting its flammable nature, should be carried out in a safest way. The present publication provides a good review of the marine LNG transportation as well as of the conditions that prevail today.
Without going too deep into technical details of the transportation, the author gives a nice overview of all important aspects including the characteristics of the vessels engaged in transportation, current regulations and rules governing it, gas storage ashore and of course safety considerations. The readers will find valuable information about everything associated with marine transportation of gas from both safety, technical and commercial perspectives.
An excellent publication released by the world respected SIGTTO organization. As it is clear from the title, the content of the volume is intended to provide necessary information and instructions on the fire hazard management on board ships transporting liquefied gases. The authors have managed to bring together, in one informative volume, the main principles of preventing and fighting the fires associated with liquefied gas.
The volume is mainly aimed at the operational staff including ship officers and plant supervisors since they are directly engaged in the handling of the liquefied gases that are very flammable. However, we would highly recommend it to the fire officers as well as to the emergency planners - they will be provided with a good professional insight into both technical design and practical operation of the liquefied gas installations together with all equipment considered fundamental for safe and efficient operation of those installations.
Numerous real life case histories make the content of the publication even more readable. In short, we can say that the authors have managed to cover absolutely all important aspects of the topic, and this approach has gained worldwide popularity to their work which is deservedly treated as one of the best books on the subject. The analysis of the famous incidents, such as the propylene fire on board Val Rosandra and attack on Gas Fountain, and others.
There are two existing types of barge carriers utilized today - the LASH system whereby the barge, or lighter, is hoisted on board the ship by a large gantry crane, and the SEABEE type where the barge is floated onto a synchrolift platform, elevated to the proper level, and then rolled along that deck into its stowed position. In a float-on concept the ship itself sinks similar to a floating drydock.
The barge carrier is best suited to trades where the barge can be utilized at both ends for distribution by river or other inland waterways. Although a point of debate, it would appear that the barge carrier is best suited to high grade bulk shipments in small quantities. Finished products would seem to be better shipped in containerships and large quantities of bulk would be most efficiently shipped in a bulk carrier.
Although there are many variations in LASH ships with regard to barge and/or container capacity, we will concentrate on the barge aspect. In referring to the LASH arrangement, it can be seen that the LASH ship is arranged along the lines of a bulk carrier with a single deck and all accommodations forward. Machinery is located just aft of midships with port and starboard stacks to allow the crane access all the way to the cantilevered crane supports on the stern.
The lighters are brought in between these cantilevered arms and hoisted vertically by a gantry crane of 500 tons capacity. The crane legs are equipped with guides that line up with the stern and cargo hold guides. These guides ensure that the lighter does not sway while the crane is traveling along the deck. Traveling speed of the crane is 1.02 m/s (200 ft/min).
The diesel engines are referred to as maybe the most promising powertrains in the nearest future, if we take into consideration their truly superior thermal efficiency as well as the oustanding reliability. Nowadays, diesel engines are widely used in the most of the commercial vehicles, industrial applications, cars and light-duty lorries. Modern emissions standards and demands of the customers of today are driving diesel engineering to become a dramatically growing applied engineering discipline in order to meet the applicable requirements of designing optimum diesel engines.
The engineering population in diesel engines' design is growing quite fast. The requirement for new advanced design theories and professional reference books has become pressing and obvious. This volume presents my own experience and findings in many interrelated areas of diesel engine performance analysis and system design. The present book is also intending to establish some sort of emerging area of the diesel engine system design for the diesel industry.
The whole technical process of designing the diesel engine is very complex indeed since it involves so many different people and companies from the original equipment makers to suppliers. A system design approach to set up correct engine performance specifications is essential in order to streamline the design process.
The "Read Later" function allows you to add material to this block with just one click. Just click on the icon and read the articles that interest you at any convenient time.