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    Wyświetlanie 1-6 z 6
    Tytuł:
    What is the Real Issue with Floating Storage and Regasification Units? Regulations Related to the FSRU Implementation Process in the Baltic Sea
    Autorzy:
    Koska-Legieć, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/116861.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Baltic Sea
    Floating Storage and Regasification Unit (FSRU)
    Floating Storage Unit (FSU)
    Liquefied Natural Gas (LNG)
    maritime law
    LNG transportation
    law implementation
    national legal system
    Opis:
    The aim of this article is to dispel any nomenclatural confusion related to the notion of FSRU. Sometimes FSRUs are classified as ships or vessels; sometimes as stationary units. The article will attempt to explain in which case FSRUs may be classified as ships. This article describes one of the most persistent legal problems in Polish maritime law, which is the FSRU implementation in the Baltic Sea. The application of FSRU solutions was analysed in relation to LNG maritime transport. This analysis is concerned only with a fragment of wider theoretical considerations about the placement of the definition of the ship in different national legal systems as well as the importance of translation and correct understanding of the words denoting the ship or the vessel.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 3; 499-503
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multicriteria optimization method of LNG distribution
    Autorzy:
    Chłopińska, E.
    Gucma, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/117110.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    cargo handling
    Liquefied Natural Gas (LNG)
    Multicriteria Optimization Method
    LNG Distribution
    Marine Diesel Oil (MDO)
    Heavy Fuel Oil (HFO)
    Vector Evaluated Genetic Algorithms (VEGA)
    Multi-Objective Genetic Algorithm (MOGA)
    Opis:
    Liquefied Natural Gas (LNG) is considered as a realistic substation of marine fuel in 21 century. Solution of building new engines or converting diesels into gas fueled propulsion meets the stringent international emission regulations. For HFO (heavy fuel oil) or MDO (marine diesel oil) propelled vessels, operation of bunkering is relatively wide known and simple. Its due to the fact that fuel itself doesn’t require high standards of handling. Where for LNG as a fuel its very demanding process – it evaporates and requires either consuming by bunker vessel or reliquefication. Distribution of such bunker is becoming multidimensional problem with time and space constrains. The objective of the article is to review the methods of optimization using genetic algorithms for a model of LNG distribution. In particular, there will be considered methods of solving problems with many boundry criteria whose objective functions are contradictory. Methods used for solving the majority of problems are can prevent the simultaneous optimization of the examined objectives, e.g. the minimisation of costs or distance covered, or the maximisation of profits or efficiency etc. Here the standard genetic algorithms are suitable for solving multi-criteria problems by using functions producing a diversity of results depending on the adopted approach.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 2; 493-497
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A comparison between DP offshore loading operation on submerged turret loading system STL, submerged single anchor loading system SAL and offshore loading system OLS considering the hydro-meteorological condition limits for the safe ship’s operation offshore
    Autorzy:
    Rutkowski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/116096.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Offshore Operations
    Offshore Loading System (OLS)
    Submerged Turret Loading (STL)
    single anchor loading (SAL)
    hydrometeorological condition limits
    dynamic positioning (DP)
    bow loading system (BLS)
    Liquefied Natural Gas (LNG)
    Opis:
    The purpose and scope of this paper is to describe the characteristics of and make comparisons between DP Offshore loading operation on Submerged Turret Loading system STL, Single Anchor Loading system SAL and Offshore Loading System OLS considering the hydro meteorological condition limits enabling safe ship’s operation offshore. These systems (STL, SAL & OLS) are designated to operate with specialized DP shuttle tankers, which are equipped with bow loading system (BLS) and optionally also with bottom submerged loading system STL. All above systems are typically used for short term mooring applications offshore associated with the offloading and/or loading of bulk liquid fuel tankers transporting refined and unrefined products of crude oil or liquefied natural gas LNG.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 1; 175-185
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of 3-D Velocity Measurement of Vessel by VI-GPS for STS Lightering
    Autorzy:
    Yoo, Y.
    Pedersen, E.
    Tatsumi, K.
    Kouguchi, N.
    Arai, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/117175.pdf
    Data publikacji:
    2009
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Global Navigation Satellite System (GNSS)
    Global Positioning System GPS
    Vessel Velocity
    STS Lightering
    3D Velocity Measurement
    Ship-to-Ship (STS) Operation
    Liquefied Natural Gas (LNG)
    Kinematic GPS (KGPS)
    Opis:
    A lightering operation is a type of Ship-To-Ship (STS) operation where two ships are together in open waters and transfer the cargo e.g. crude oil, LNG. High skills and experience are required by the human operators as no relevant equipment for determining the relative speeds and distances with sufficient accuracies has been implemented. The officer in charge of an STS lightering takes the decision on adequate maneuvering orders based on predominantly visual observations during the final approach. Landing on all fenders simultaneously is an objective in order to minimize ship-fender contact forces, but this is rather difficult to achieve in practice even in calm sea due to the effect of hydrodynamic interaction when the ships are closing in. Furthermore, currents that are present in the lightering zone add to the operational complexity. A field measurement experiment has been carried out with a Velocity Information GPS (VI-GPS) system installed onboard a ferry approaching port for berthing which is similar to an STS lightering. The paper proposes to apply VI-GPS as input sensor to a decision-support and guidance system aiming to provide accurate velocity information to the officer in charge of an STS operation. It is argued that DOP of VI-GPS is related to the velocity error.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 1; 43-48
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    System for determining dynamic under keel clearance of vessels entering the Port of Swinoujscie (DRWPS)
    Autorzy:
    Gucma, L.
    Bilewski, M.
    Artyszuk, J.
    Drwięga, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/117501.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    port manoeuvering
    under keel clearance
    Port of Swinoujscie
    response amplitude operator
    UKC reduction
    graphical user interface
    liquefied natural gas
    LNG vessels
    Opis:
    The article presents a system for determining dynamic under keel clearance. In order to build a DRWPS system, a mixed model was created based on the analysis of math models. The system includes advisory software for defining the conditions for the entering of large LNG vessels in the context of under keel clearance and software was built to support the decision-making of operators who are responsible for introducing these vessels to the Port of Swinoujscie.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 3; 539-545
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Spring-loaded winch band brakes as tools to improve safety during mooring operations on ships
    Autorzy:
    Iglesias-Baniela, S.
    Pérez-Canosa, J. M.
    Cid-Bacorelle, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/1841578.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    berthing operations
    winch band brakes
    mooring operations
    brake holding capacity
    minimum breaking load
    Liquefied Natural Gas
    LNG
    Hydraulic Release
    mooring line
    Opis:
    Some recent accident reports involving large vessels in mooring operations or breaking away from their moorings conclude that brakes of mooring winches do not render before line parts. As the potential loss of life is high, the utmost attention on-board must be paid to minimise this inherent risk. When the load on the mooring lines becomes overloaded beyond the pre-set levels, mooring winches band brakes have the safety function of rendering and allowing the line to shed this load before its potential breaking and the subsequent snap-back. As a preventive measure against breaking, the pre-set level, known as Brake Holding Capacity (BHC), must be below the Minimum Breaking Load (MBL) of the line. In this paper, the authors analyse concerns that can arise from those with conventional screw manually-applied band brakes regarding their BHC reliability. Thus, in order to improve safety, the advantages of the spring-applied band brakes with manual setting and release or with hydraulic release are highlighted. Finally, the paper shows a typical procedure using a hydraulic jack for brake testing the winch of a Liquefied Natural Gas (LNG) ship to fix their BHC in order to hold 60% of the MBL of the mooring line.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 3; 711-719
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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