Items · Journal of Marine Technology and Environment

NEW TECHNOLOGIES USED FOR AUTOMATION OF CONTAINER HANDLING AT TERMINALS

Valentina GRANCHAROVA

4/1/2014

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

Introducing of advanced and innovative technology for optimizing physical operations resulted from increased flow of goods through container terminals. The paper highlight about automatization in the terminals, which might lead to better productivity level, flexible work environment and effective utilization of resources. Many terminals are seeking the proper solutions for reducing the operational costs and providing an increased level of service to its customers. Information technology is now essential element of global economy. Container terminal operators are providers of container handling services and deals with the shifting of trend towards containerization of exports and imports. The efficient operation of a container terminal also depends on how efficiently it can process large volumes of information. Therefore the application of information technology to container terminal operations and management is critical to the success of the terminal. This will also include electronic data interchange of information between the terminal and its users. In this paper are proposed some decisions, concerning automation of process at terminals.

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AUTOMATED AND MECHANICAL EQUIPMENT FOR COLLECTING OF METEOROLOGICAL INFORMATION ON BOARD OF THE SHIP

Ivaylo GRANCHAROV

4/1/2014

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

The need for reliable, accurate and comprehensive information about the weather conditions is essential for the safety of shipping. This paper discusses the various types of equipment for obtaining information about meteorological parameters on board of the vessels, their advantages and disadvantages. It emphasis the need for automation of the process to assess the weather situation in a view to save valuable time in the busiest shipping today. Officer of the Watch (OOW) should use all equipment available on board to make meteorological observations. The systems Navtex and Inmarsat-C serve to transmit MSI to ships. Constantly measuring the meteorological parameters the mariners can assess the reliability of weather forecasts prepared by coastal meteorological centers. Considering that OOW have very limited time for measuring the weather parameters, the introduction of the weather stations on board of the vessels is a key innovative technology for the safety of navigation and gives clear and precise meteorological information.

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QUANTUM DOTS INTERACTION WITH PROKARYOTES INVOLVED IN THE MARINE BIOREMEDIATION PROCESS

Simona GHITA; Iris SARCHIZIAN

4/1/2014

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

Semiconductor nanocrystals (quantum dots QDs) are known to show desirable optical characteristics like photostability, fluorescence properties, broad absorption spectra and sizedependent narrow emission spectra, leading to major advances in medical diagnostics, targeted therapeutics, microbiology, molecular and cell biology. In this paper we present our results concerning the interaction of CdSe/ZnS core-shell quantum dots (490 nm; 520 nm; 560 nm and 600 nm) with long chain amine capping agent with hydrocarbon-oxidizing bacteria. The biological samples used are natural populations of cyanobacteria and heterotrophic bacteria from the Black Sea. Quantum dots that emit at 520 nm and 600 nm allow the visualization of the microorganisms, but the experimental values obtained are close to the number of dead cells (PI positive) and not the total number of cells (DAPI), suggesting that QD label almost exclusively dead cells.

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NEW TRENDS IN THE CONTENT OF THE BULGARIAN NAUTICAL NAVIGATION CHARTS

DACHEV YURIY

4/1/2014

Marine sciences and engineering ; Renewable energies ; Marine renewable energies and Sustenability ; Advanced technologies for MET ; Climate changes

International standard for nautical navigation charts consists in international nautical navigation charts and their symbols. This charts are published by the United Kingdom Hydrographic Office. From several years we have seen new trends in worldwide view for preparation of the nautical navigation charts. Hydrographic Offices of many maritime countries, including Bulgaria, began to make a significant changes in the nature and the content of their modern nautical navigation charts. The most important changes are observed in the symbols, in the used colors, in the duplication of all texts on local and English languages, in standardization of the characteristics of navigational aids, in the ground of the seabed, in the sources of information, etc. The major advantage of all these changes is that the nautical navigation charts of these countries will become competitive to the international charts issued by the United Kingdom Hydrographic Office. The report examines the Bulgarian nautical navigation charts issued until now and trends in their content in accordance with international standards in this field and increases their competitiveness in the market for this product.

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PRINTED THICK FILM HEATING ELEMENTS FOR USE IN SHIPS

Bohos APRAHAMIAN

4/1/2014

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

The paper presents our work in developing printed thick film heater elements on ceramic substrates for heating in the range of 300 – 400 oC. Two types of samples are realized and experimentally investigated. Their leakage currents are measured and their resistance to the sea mist impact is checked. The heater elements on ceramic substrates are considered promising for application in ships.

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CONSIDERATIONS REGARDING THE IMPACT OF SHIP INTACT STABILITY LOSS ON MARINE POLLUTION

Cristian ANDREI; Marinel-Dănuț LAMBA; HANZU - Pazara-Radu; Belev BLAGOVEST

4/1/2014

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

The article presents very important aspects of marine pollution generated by the loss of intact ship stability. Based on the statistics issued by maritime organizations, it is presented the correlation between loss of ships intact stability and the hull structural failure, being revealed that the first can be considered as a primary event in certain accidents of marine pollution. Moreover, the paper illustrates correlation between loss of intact ship stability and pollution of marine environment not only by oil but also by harmful substances contained in bulk cargo transported on board ships and accidentally discharged into the sea due to ship stability failure.

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MEASURES TO ENHANCE SAFETY OF CONTAINERIZED CARGO TRANSPORT BY REVIZING STANDARDS FOR CARGO INFORMATION AND EDI BAPLIE AND MOVINS MESSAGES STRUCTURE

Svilen VELINOV

10/1/2013

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

The intensified containerization during last decades and the increased capacity of container ships in combination with unverified container weights and EDI techniques which do not fully comply with SOLAS Ch VI requirements have led to a number of incidents involving loss of containerized cargo. This paper analyses both present SOLAS requirements for proper cargo information, including the IMO’s recently proposed amendments, and the modern techniques and standards for EDI. An introduction of obligatory verification of container weights at container terminal gates is proposed which together with revised BAPLIE and MOVINS EDI standards as suggested by author would form an efficient safety barrier contributing to the safety of maritime container transport.

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STUDY OF A MAPPING FUNCTIONS AND TROPOSPHERE MODELS FOR CALCULATING OF GPS RADIOSIGNALS DELAY

Tsvetkov MIROSLAV

10/1/2013

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

This paper represents the results of a comparison study of different troposphere models and different mapping functions and combinations between them for calculating the troposphere delay of GPS radio signals. The best accuracy of GPS receiver is used for estimation of the best combination between troposphere model and mapping function. Local meteorological data is used in calculations. The generated data can remove troposphere error and increase the accuracy of GPS measurements.

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SOFTWARE MODULE FOR GNSS NAVSTAR RADIO EFEMERIS PROCESSINGS

Tsvetkov MIROSLAV

10/1/2013

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

This paper represents the developed with MatLab algorithms for extracting radio ephemeris from the receiver to the global satellite navigation system NAVSTAR and handling in order to realize the possibility of calculating the reference orbits of navigation satellites. The results can be used to extrapolate the location of navigational satellites, determining the exact location in ECEF coordinate system to a point in time or to a period of time.

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ONE WAY TO IMPROVE GSP ACCURACY USING LOCAL METEOROLOGICAL DATA

Tsvetkov MIROSLAV; Grozdyu GROZEV; Chavdar ALEXANDROV

10/1/2013

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

This paper represents an approach for improving the accuracy of global positioning systems (GPS) measurements using local meteorological data. The current status of GPS accuracy is analyzed. The use of the data generated by the suggested model increases considerably the accuracy of GPS measurements.

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CONSTANTA TOMIS HARBOR ECOTOXICOLOGICAL ASSESSMENT USING MARINE ALGALTOXKIT BIOTEST

Mirela-Iuliana SUNDRI

10/1/2013

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

An ecotoxicological assessment of Constanta Tomis harbor aquatic area was done using Marine Algaltoxkit, a 72 h algal growth inhibition biotest. A toxicity of the samples less than 20% and a tendency of test species Phaeodactylum tricornutum to adapt to aquatic conditions were found.

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STATION KEEPING STUDY OF OFFSHORE AQUACULTURE OCEANIC FARMING SYSTEM

SULAIMAN O. WAN NIK, W.B. SAMAN A.B.

10/1/2013

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

Offshore aquaculture system require reliable structural integrity and mooring system design for ultimate state limit, fatigue state limit and accidental and progressive state limit against environmental loading and accidental loading. To avoid mooring system failure, selecting an appropriate breaking strength and limit state for mooring system components is necessary. Suitable mooring system has been designed by group of researchers at Universiti Malaysia Terengganu. Valuable information was obtained from Technip and BV. The system has been tested in towing tank in Universiti Teknologi Malaysia. This paper describes mooring system design that account for forces and environmental loadings. The paper describes evaluation of optimum mooring performance in wave, wind and current loadings on mooring components anchor buoy and riser elements that are involved the mooring system dynamics.

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NUMERICAL CALCULATION OF HYDROCARBON SEPARATION PROCESSES IN BILGE INSTALLATIONS USING VOLUME OF FLUID METHOD

Andrei-Alexandru SCUPI; Dumitru DINU; Andrei Mihai DOBRE

10/1/2013

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

The ballast-bilge installation on board of a commercial ship has many purposes (correction of the position of the center of mass of the vessel, transferring and disposal of liquid ballast overboard, discharging overboard the water bilge collected). These installations are extremely important for transport efficiency and environmental protection. The paper presents the use of numerical computation for studying the hydrocarbon separation process in bilge installations. The separation process is significant because we must assure that all the hydrocarbons are well isolated so no environmental damage will be done. In the simulation process we were able to visualize all the parameters participating that characterize the process (density, pressure, velocity, turbulent kinetic energy, and turbulent intensity). The volume of fluid was discretized into a structured mesh using uniform quad methods of discretising. These installations are used by both commercial and leisure ships and on on-shore and on off-shore structures. The process of hydrocarbon separation is done in various branches of industry.

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SOCIO-ECONOMIC & ENVIRONMENTAL IMPACT OF THE PORT EFFICIENCY IN THE TRANSPORT LOGISTIC CHAIN.

Benazar. Rosana SALAMA; Marin. Jesus E. MARTINEZ

10/1/2013

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

Port efficiency and productivity are two of the most important factors in defining the competitiveness of a port. Lately it has been shown that while the ports are more developed and more competitive, have a greater tendency to respecting the environment, because that same competitiveness, are encouraged to apply at their facilities to international quality standards such as ISO14000, including measures that represent respect for the environment and corporate policies designed for that purpose. Moreover the socio-economic implications of logistics undoubtedly affect the social development of cities. So, the aim of this paper is to open a discussion in this regard, and analyze with a real situation and the economical , social & Envinmental impact on the venezuelan society.

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MATHEMATICAL MODELING OF THE NEW SYSTEM FOR CAPTURE OF WAVE ENERGY

Tudor SAJIN; Dragoș-Iulian NEDELCU

10/1/2013

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

The paper presents the mathematical modeling of the wave energy capture process. The wave energy is transformed into torque by a plant composed of multiple floating cylinders, which perform oscillating motions according to the wave parameters and to the constructive elements of a new patented plant.

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WATER-OIL AND WATER-COAL DUST ARTIFICIAL FUELS: ITS ENERGETIC, ECONOMIC AND ECOLOGICAL BENEFITS

Tudor SAJIN ; Ștefania Roxana BUZDUGA; Florin ANITEI

10/1/2013

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

To stabilize the burning of heavy oils and coals with high content of water and reduce the pollution from the combustion installations, the fine emulsions of water in heavy oil and the fine suspensions of coal dust in water are prepared. Thus, from natural fuels with high water content are obtained artificial liquid fuels with water in excess, which improves some economic, energetic and ecological indicators of burning process. In principle, these fuels can be adapted for the utilization in the energetic installations off marine ships. This paper presents the economic, energetic and ecological indicators of combustion of water-oil emulsions and water-coal dust suspensions on a test installation.

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INDUCED MARITIME ACCIDENTS & SLOW SHIPPING

MONTES DE OCA R, Reynaldo; MARTÍNEZ Marin. Jesus E.

10/1/2013

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

Maritime accidents, share some factors already considered by the International Maritime Organization (IMO) and the researchers of the maritime world. The accelerated technological’s changes, has allowed significant improvement of human activities, in many cases, improving the effectiveness and efficiency in the majority of the fields, of which marine transport is not the exception. Unfortunately in some cases, new technologies have led to relaxation in safety, so the idea to establish some minimum parameters, it is essential to ensure the safety of human life at sea, for increase the prevention of accidents and protection maritime environment.

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A THEORETICAL ANALYSIS OF A VAPOR COMPRESSION SYSTEM ON ENVIRONMENTAL AND THERMODYNAMIC BASIS

Feiza MEMET

10/1/2013

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

Most of ships worldwide currently use as working agent hydrofluorocarbon R134a (HFC134a) in direct expansion refrigeration systems. International concern forces shipping sector to use refrigerants with low value of GWP (Global Warming Potential), an index comparing the climate impact of an emission of a greenhouse gas relative to that of emitting the same mass of carbon dioxide. The widespread refrigerant on board the ships, R134a, has a 100-year GWP=1300, while its possible alternative, the hydrofluorocarbon R152a (HFC-152a) has a GWP=140. Starting from the environmental benefit shown by R152a, a thermodynamic comparison between R134a and R152a is made in this paper. Results will indicate the opportunity of the substitution.

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ENERGY EFFICIENCY IMPROVEMENT OF SHIP MOTOR DRIVEN SYSTEMS. HIGH EFFICIENT MOTORS AND DRIVES

Elena KATELIEVA

10/1/2013

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

The purpose of this paper is to show potential measures and practices for energy savings and to give recommendations for energy efficiency improvement of ship motor driven systems. For overall energy efficiency improvement of the ship is essential for companies to implement specific energy policy and to develop an energy management plan. As the motor driven systems are the largest energy consumer on ship optimisation of the performance of these systems will provide greatest energy savings. For achieving efficiency optimization it is necessary to determine baseline data of the system, identify and implement the most appropriate measures and practices.

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SUSTAINABLE PORT DEVELOPMENT IN CONNECTION WITH ENVIRONMENTAL REGULATIONS

Valentina GRANCHAROVA; Ivaylo GRANCHAROV

10/1/2013

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

Modern ports as a part of logistics chain and the transport networks are under sustainable development and process optimization. Port expansion should always be considered in the context of environmental legislation and its implementation in different national laws. The paper discusses the introducing of major environmental requirements for port development activities.

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VIRTUAL DIALOGUES WITH RUDOLF DIESEL: A SAMPLE OF TEACHING/LEARNING MATERIALS FOR BEGINNERS IN MARINE ENGINEERING

Nadiya DEMYDENKO ; Skidanchuk SERHIY; Ochkovskiy SERHIY; Vigovskiy VIACHESLAV

10/1/2013

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

This paper presents the materials of experimental class-room activity which is a part of the project approved by the Ministry of Education and Science of Ukraine. The project aims to create a Study Pack of Maritime English Introductory Course. One of the objectives is to find out methodological principles based on the interdisciplinary co-operation with specialists who are teaching major subjects. The great part of work has been done by senior students. The authors are thankful to the Department of Marine Engineering for the reasonable approach to the initiative, participation and assistance in preparatory work.

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STUDY OF CORROSION RESISTANCE OF CONTACT RIVETS OF ELECTRICAL APPARATUS WITH NANOSTRUCTURED COATINGS OF THE TI/TIN TYPE

Bohos APRAHAMIAN; Alexander GAYDARDZHIEV; Maik STREBLAU

10/1/2013

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

The article presents the results of studies of corrosion resistance, in particular the resistance of contact rivets of electrical apparatus with nanostructured multilayer coatings of the Ti/TiN type – the so-called superlattices, to salt sea mist. The possibility of using these contact bodies at sea has been experimentally proven.

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ONLINE TRAINING FOR HIGHER EDUCATION

Liviu-Constantin STAN

4/1/2013

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

Last years showed an increased interest on the concept of life long learning, especially in the European countries. Many activity fields, including maritime area involve this concept. A modern society must keep the level of knowledge of its citizens continuously updated to actual development, mainly in the fields of interest. This requirement can be accomplished by teaching and studying solutions that will use all available options including internet. The present paper is showing on already applied online teaching system used by our university, designed to offer easy access to information for teachers and students, but also available for former students, now officers onboard ships, in order to be able to update latest information’s about technical development in maritime field necessary in their duty activities. The online teaching techniques are used for the development of the concept “train the trainers” in our university for younger lecturers, to help them to integrate in the academic training system, through the project named “Seafarers’ environmental, social and cultural implications of sharing life on board ship within multinational crews – SeaCultLife”, dedicated to the development of the younger and experienced lecturers competencies related to the training domain requirement and also development and improvement of the skills in using of the newest teaching and training techniques.

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OPERATIONAL MANAGEMENT WITH APLICABILITY ON ANTIFOULING MARITIME ECOLOGICAL SYSTEM

Ileana-Irina PANAITESCU; Fanel-Viorel PANAITESCU

4/1/2013

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

The triggering mechanism of tin copolymer antideposit products for hull protection was reproduced in a system based on the unique technology that uses copper acryl. Similar performance levels of antifoulling (that can last up to 3 years) are results of a new tin free system for coastline ships. The auto-polishing characteristics of copper acryl result from a controlled hydrolytic process, which is similar to the tin copolymer triggering mechanism. The active agent releasing level is sustained throughout the lifetime of the cover, by the chemical control of size and composition of the active zone. Performance characteristics are specially designed for coastline ships, the sustained releasing level of the biocide substance is made for long docking periods and high levels of antifoulling levels permit maximum efficiency for operating ships. The economic and environmental benefits are done by giving up to usual antifoulling auto polish substances and using Ecoloflex instead. Thus money is saved by reducing fuel consumption and environmental taxes. Ecoflex antifoulling systems contain only copper based biocide that decays fast when released in a marine environment.

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WATER DROPLETS ELECTROCOALESCENCE AND INSTABILITIES IN CLEANER PROCESS OF OILS AND FUEL OILS FOR MARINE ENGINES

Constantin-Narcis OSTAHIE; Tudor SAJIN

4/1/2013

Marine sciences and engineering; Renewable energies; Marine renewable energies and Sustenability; Advanced technologies for MET; Climate changes

An analysis of water droplets electrocoalescence from a water-in-dielectric liquid emulsion, in an electrostatic oil cleaner process is maded in this paper. The efficiency of electrostatic purging of marine fuels and oils is analyzed. It is studied an electroseparator for dielectric liquids by own conception and the effect on water droplets instabilities under an electric field. It is studied a case that is not studied frequently, that of an inhomogeneous electric field. The process is simulated using CFD software with the capability to provide visual and mathematical data.

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