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  • Szelangiewicz, Tadeusz; Żelazny, Katarzyna (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    Since 2013 Energy Efficiency Design Index (EEDI) for new ships will be enforced. Ships meeting the CO2 emission standards will be granted energy certificate required for their exploitation. The paper presents EEDI in the current form, the certification procedure, reduced CO2 emission planned for coming years, as well as potential for further EEDI value reduction
  • Szelangiewicz, Tadeusz; Żelazny, Katarzyna (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    Since 2013 Energy Efficiency Design Index (EEDI) for new ships will be enforced. Ships meeting the CO2 emission standards will be granted energy certificate required for their exploitation. The paper presents EEDI in the current form and influence of the ship speed and decrease of the ship speed on EEDI
  • Tylicki, Henryk (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    In this paper author introduces problem of the reduction of diagnostic information in evolution condition machine for estimating state prognosis algorithms which are the basis for determining conclusion rules for estimating the next machine operation term and for state genesis which is the basis for rules creating of machine state estimation in the past. Automation of the investigation system of the evolution of the technical systems machines condition in which diagnosing distinguishes itself of prognose of the state and the genesis of the state requires the qualifications of the gathering of diagnostic parameters describing the change of the condition of the machine during exploitation. The results of investigations connected with the implementation of the procedures of monitoring the technical machine engines condition and their investigation for the chosen arrangements of mechanical vehicles were introduce
  • Wójcik, Juliusz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    In the paper the impact of changes in coal quality on boiler operation with the retort furnace had been discussed. Study used a test for the three types of coal from different mines. Energy and emission studies have shown that even relatively coals not much different with physicochemical parameters, causing a marked change of the efficiency of device operation. Attention was drawn to the growing scale of the problem in the application of fuel significantly deviating from properties of the classical fuel to the retort furnaces. The ways to improve the quality of use of boilers with retort burner have been given
  • Wolniak, Radosław; Skotnicka-Zasadzień, Bożena (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The article presents functioning of e-administration in the Silesian Province. Respondents from different towns in the Silesian Province evaluated the following issues: benefits of using an e-office, the medium used for communication with an e-office, the level of customer satisfaction with e-administration functioning. The research results were analysed by exploratory factor analysis. The main advantages of using e-administration which were quoted by the surveyed include: the promptness of settling matters and the lack of queues. Three hidden factors related to the benefits of using an e-office were defined by means of exploratory factor analysis: accessibility, communication and costs, as well as safety. On the basis of the conducted investigations it can be stated that in the process of introducing e-administration it is necessary to be exercise caution and constantly control the level of these services quality
  • Zasadzień, Michał; Kwaśna, Ewelina (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The article presents the results of research into the time of work of maintenance department employees in a selected production plant. The measurements have been taken for three selected employees during 9 working days. Major activities performed by the employees have been identified and classified in three basic groups: the effective time devoted to daily duties connected with technical means maintenance, the auxiliary time which involves preparatory and administrative works as well as the ineffective time during which the employees undertook activities not related to the performed work. Among the ineffective and auxiliary activities the longest lasting ones have been specified. By means of the 5Why Method the causes responsible for the occurrence of major ineffective and auxiliary activities have been identified. As a result of the conducted analysis, corrective measures aimed at shortening the time of these activities have been identified, which should contribute to the improvement of maintenance department employees’ work effectiveness
  • Zeńczak, Wojciech (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The article presents the selected results of the experimental research of the influence of the ship’s motion on the sea waves on the value of the heat transfer coefficient between the fluidised bed and the heating surface of the ship’s fluidised-bed boiler immersed therein. Pursuant to the research results the likely boiler capacity change has been estimated caused by this disturbance. The research has been conducted at the original physical boiler model
  • Adamkiewicz, Andrzej (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The article justifies the need to analyse diagnostic relations for turbocharger operation purposes. Types of turbochargers most frequently used in modern marine engines have been presented. Turbocharger decomposition has been conducted on a selected example. The influence of typical inefficiencies in respect to symptom value changes has been worked out for each heat engine and sub-system. Validation of selected cause and effect relations has been based on operational experience in the technical scale
  • Antoszewski, Bogdan (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    In this paper, a Nd:YAG laser was used to generate micropores on SiC surface and the structure and morphology features of surface micropores were observed. Tribological experiments were conducted with pin-on-disc tester under various loads and speeds. The article concentrates on identification of friction processes and also attempts to find a correlation between surface energy, friction force and topography of surface with geometrical texture
  • Arefyev, Igor; Arefyev, Igor (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    A method for assessing the impact of low water in the fairway on the movement of ships in the rivers and canals is shown in the work. The growth speed of the ship breaks down the river (channel), the territory of the area. It is important that when the motion is regular. This paper is an analysis of this problem.
  • Banachowicz, Andrzej; Wolski, Adam (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    Terrestrial navigation is one of the method of parametric navigation, i.e. a method of fix determination. Recently the method has become quite common again thanks to automated measurements of navigational parameters (radar navigation, radio direction finders and others) and connection with the ECDIS. The accuracy of position coordinates determined by such method is affected by navigational measurement errors and the accuracy of navigational mark coordinates used for position determination. The coordinates values are obtained from nautical publications (including charted data) or from an electronic chart data base. This article presents an original method for an analysis of how the accuracy of navigational mark coordinates affects the accuracy of ship’s fix. Considerations are supplemented with an example of the most common terrestrial position determination in marine navigation
  • German-Gałkin, Sergiej (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    In the article ship’s three-phase power networks with variable, asymmetrical and non-linear load to compensate for the non-active components of power more and more often used active filters are presented. Getting high energy performance of active filter depends of the control algorithm. In this article ship power networks with the new algorithm calculating the active, reactive and unbalanced components to control active filter are described. Study was carried out on virtual model, implemented in the environment “Matlab- -Simulink”
  • Bartnicka, Joanna (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The paper is an attempt to determine the assumptions for the development of working conditions including the needs of people with disabilities and the elderly. The basis for the development of assumptions were the experiences in the field of analysis of working conditions, mainly in health units and shaping of public space through innovative non-discriminatory solutions. Three main areas have been presented in the article, in which the transfer of knowledge may be acquired during the study: the area of ergonomics (ERG), the area of accessibility of work space with the relation of freedom in mobility and safety (SPA), and the area of information availability (INF). The considerations included in the article apply in the concept of Design for All (DFA), which is the one of the pillars of European Union directives, entitled European act on the availability, being a respond to the demographic challenge by increasing participation in the labour market and society for all
  • Girtler, Jerzy (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The paper shows a necessity to consider the processes of load on and wear of tribological systems in Diesel engines (and therefore the changes in their states) in real conditions as random processes. This means that mathematical models for these processes can be random functions with an argument which is time (t) and with values which are random variables such as loads and wear of particular tribological systems. The load properties for the tribological systems have been presented as the main causes of their failures. It has been signaled that a stochastic dependence should be expected between mechanical load and thermal load, whose the intensity (force) can be defined by Czuprow’s convergence coefficient. A proposal has been submitted to accept that the tribological system load in Diesel engines is a stationary process with asymptotically independent increments. The reasons for this proposal have been presented in the form of relevant hypotheses and an exemplary graph of changes in pressure and temperature in an engine cylinder under operation. Also it has been signaled that the models of wear processes in tribological systems may be stochastic processes with special properties called semi-Markov processes. The wear properties for these systems have been explained in the form of relevant hypotheses
  • Biały, Witold (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    In the article major factors exerting an adverse impact on the comfort of work have been characterised. Mining plants engaged in the process of coal mining and their working conditions have been characterised. Selected examples of hazards influencing the incidence of occupational diseases have been presented. The results of investigations carried out at selected workstations in a mine, both overground and underground, have been presented. Solutions and measures aimed at reducing the existing threats have been propose

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