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32.1 Scientific Journals of the Maritime University of Szczecin, no. 32 / 2012



 

Recent Submissions

  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • Szczęśniak, Bartosz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    In order to be able to use the method of surveying satisfaction of production departments with the services provided by maintenance departments, one must first acquire and analyse considerable amounts of data. Such an attempt may only be successful if an appropriate information tool is used. This article provides a discussion on the concept of an MS Excel spreadsheet application for the sake of creating such a tool. The author has proposed a specific data structure enabling storage of the data acquired in the course of research. The entities occurring in it have been identified and discussed, and so have the attributes assigned to individual entities. The author has also elaborated on the spreadsheet mechanisms which allow for data processing in accordance with the premises of the aforementioned metho
  • Surówka, Leszek (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    In the study a characteristic of working machine hydraulic systems, selected issues of basic methodology of their diagnosing and a concept of an on-board diagnostic system for their condition evaluation were introduce
  • Stateczny, Kamil (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The paper presents a prototype of a new input–output device which is a constructed scanner of human upper limb movement which, together with the software layer, creates a new user interface of CNC (Computer Numerical Control) machine tools. The constructed scanner contains a sensory system based on acceleration sensors and gyroscopes which are distributed within the key areas on the human upper limb. On the basis of the signals registered during the movement of operator's upper limbs, basing on the solution of a simple kinematics model, it is possible to determine the location and orientation of operator’s hands. A combination of the developed technology with ready solutions of gloves scanning movements of fingers and hands provides a new intuitive input-output device for the communication with the machine;Stateczny, Kamil
  • Ścierski, Jerzy M. (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    Quality management systems established in conformity with ISO 9000 standards have an over twenty-year tradition. In the article attention has been focused on relations between goals defined within the framework of QMS (Quality Management Systems) and business results. The amendment of the bill, planned for the year 2015, changes the previous concept of QMS by introducing a number of new requirements which adjust organisation management systems to the current level of knowledge and environment of the organisation. One of the requirements that will be emphasised in a new issue of ISO 9001 standard is risk management, the innovation implementation process and information management. The article reviews the requirements contained in the current issue of the standard, focussing on requirements which limit the risk of organisation functioning and the risk related to innovation design and implementation
  • Matyszczak, Marek; Krause, Paweł; Rajewski, Przemysław (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    The article describes basic problems concerning qualifications required from personnel handling LNG terminal facilities and equipment in view of the new terminal in Świnoujście. Statistical data, separately reported for LNG tankers, indicate a drop of the number of accidents and machinery failures on ships. The legal basis for the organization of common seafarer training and additional training for LNG vessel crews is outlined. Finally, the authors point out the areas of training for shore-based personnel handling LNG vessels, types of equipment of training centers for specialized LNG courses and estimated costs of such training
  • Pawlak, Andrzej (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    This paper presents the requirements for the method and extent of testing of non coherent optical radiation at work places, as well as the meters used for tests. The requirements are based on the current standards in the field of optical radiation. The scope of the exposure measurements are presented in conjunction with the current values of MDE. There is a description of the method of determining the angular dimension of radiation source α and how to calculate the effective source radiance from the measured effective irradiance. At the end, the paper presents the recommended frequency of testing and suggestions concerning the content of the study
  • Narloch, Arkadiusz; Szulc, Dariusz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The aim of the article was to evaluate accuracy in determining a vessel position’s coordinates in respect to permanent signs, with sequence adjustments method applied. General theory of geodesic classical adjustment, based on a least square method and of sequence adjustments has been presented in its first part. The main part of the paper contains description of the research. It was conducted based on a vessel going from the seaport of Świnoujście to the seaport of Szczecin, determining the positions in respect to navigational structure made by aids in navigation located in Szczecin Lagoon. It consisted in simulating results of measurements in respect to marks of the structure (bearings and distances) and calculating position’s coordinates and its accuracy based on the results. The calculations were conducted with classical geodesic adjustment and sequence adjustments methods applied. Considerations regarding results obtained from the research have been performed and general conclusions drawn in the end part
  • Molenda, Michał (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The article describes the process of planning internal audits carried out in the framework of a quality management system based on ISO 9001. The article presents some errors made in the planning process of internal audits. These errors are classified as potential causes of poor effectiveness audits. In the first part this article contains theoretical considerations in the planning of internal audits of quality management systems. The second part of the article presents the results of research. These results illustrate the effects of errors in the planning process of the audit. At the end recommendations for persons responsible for planning audits are included. These recommendations should improve the effectiveness of the internal audit planning, and thereby their value to the organization
  • Klyus, Oleh; Krajniuk, Aleksander (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The article presents a mathematical model for determining the base regimes for common work of air cooling machine’s units with cascade pressure exchanger which allows to specify the device performance and thermal energy expenses. The final results of modeling and recommendations for the area of application are describe
  • Midor, Katarzyna (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The article outlines the characteristics of the WCM system, which is more and more frequently used to support enterprise management. Currently in Poland the WCM system is most often applied in automotive plants due to special quality requirements in this branch. By signalling the effects achieved by an organisation owing to WCM implementation, the author of the article wishes to make automotive plants managers interested in it, as this system might be a subsequent stage of quality improvement in a company, following the standards of ISO 9000 series
  • Klyus, Oleh; Krajniuk, Aleksander (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    This paper presents a new way to increase efficiency and reliability of air cooling machine (BMX) in terms of detander application and basic compressor of fundamentally new heat exchanger – Krajniuk’s cascaderecuperative pressure exchanger (KOD). The rules of KOD working circuit, during which BMX KOD working circuit is carried out and the primary thermal energy source can be the thermal energy of any origin, are described. The impact of adjustment on the cooling depth and efficiency of the device and the possibility to change the heat and mechanical work expenditure on the BMX KOD working circuit organization is given
  • Michalski, Ryszard (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The article presents the general description of the waste energy recovery systems in the marine Diesel power plants. Both, the simple as well as the complex recovery systems have been discussed. The substantial part of the article concerns the overview of the evaluation methods of the recovery systems arrangements. There have been presented the rudiments of the thermodynamic evaluation which in the effect provides the material for the determination of the energetic and exergetic efficiency of the recovery systems. The significant issue is also the description of the method of the arrangements economic evaluation, including the method of the determination of the annual profit ensuing from the operation of the waste energy recovery system and the dynamic methods of the economic analysis with the particular emphasis on the investment outlay payback period index. There have been presented the examples of the dependence of the waste heat turbo-generators on the main engine power output, the estimated payback times of the investment outlays incurred in connection with the discussed systems and the payback time of the outlays with reference to the main engine power output in the function of its power output
  • Medyna, Piotr; Mąka, Marcin (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    Generating initial population of evolutionary algorithms used in the process of weather ship route optimization requires the determination of the area where it may find the points of designated routes. The problem may be a need to sail around the continent, circumnavigate the islands, and the restrictions from the ice fields and other closed areas. Comparing routes to the rhumb line or great circle may be also impossible. It is proposed to determinate the preliminary route using Dijkstra's algorithm using land / ocean data of the GFS model. It will be used during generation an initial population on the ocean area in these cases
  • Raev, M.; Skvortsov, E.I.; Kravtsov, Yu.A (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    New two-stage method for observation and processing of radar signals and images is suggested, which uses two-polarization X-band radar and significantly improve accuracy of sea surface current velocity measurement
  • 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

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