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Browsing by Author Krause, Paweł: 17 Scientific Journals of the Maritime University of Szczecin

  • Krause, Paweł (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2009)
    The paper presents proposal of scope of control surface for marine power plant of merchant ship, being an element of ship’s energy system and consists of devices and energy plants exchanging fuel energy into other kind of energy, auxiliary devices and others irrelevant to the energy conversion processes, but indispensable because of international safety at sea and environmental protection provisions. Accepted scope of control surface allows to derive useful energy, or total generated minus energy consumed for autonomous shipping, this is why the suggested term “autonomous ship’s power plant”. This way makes possible (among others) valuation of results of waste heat recovery system used on boar

Other publications

  • 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
  • Behrendt, Cezary; Krause, Paweł (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    Growing costs of ship operation and actions taken to reduce the emission of harmful components in exhaust gases make designers seek more effective methods of utilizing substantial amounts of waste energy in marine power plants. One such method leads to the steam turbogenerator. This machine to run, however, requires substantially greater amount of steam generated in the waste heat boiler (compared to steam demand for heat-ing purposes). It is possible to supply a sufficient amount of steam if the waste heat contained in exhausts and charge air of the main engine is fully utilized. This article analyzes the influence of some methods of using waste heat from exhaust gases and charge air on the amount of steam produced in the waste heat boiler. The analysis takes account of boundary conditions, such as steam pressure in the boiler and the minimum value of outlet gas after the boiler. The analysis is illustrated with examples of basic calculations for the waste heat boiler co-operating with a specific slow speed engine. Two variants of waste heat recovery installation solutions are considere
  • Krause, Paweł; Klyus, Oleh (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    At Maritime University of Szczecin there are carried out research works concerning utilization of biofuels on fishing vessels. There are a lot of information about relations between atomization and fuel combustion. Initial works also indicates correlation of surface tension with atomization. This article presents results of experimental investigation of droplets distribution after determination of fuel oil surface tension. Relation between atomization quality and surface tension are analyzed. Distillate fuel oil, rapeseed oil and 10% rapeseed mixture with distillate fuel oil were used as a fuel.
  • Kidacki, Grzegorz; Krause, Paweł; Rajewski, Przemysław (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    New requirements of Marpol, Annex VI and Directive 2005/33/EC imposing the reduction of SOx emission in ship’s exhausts gas enter into force in 2006. The emission of SOx can be reduced by the limitation of sulphur quantity in fuel or by means of exhaust gas desulphurization methods. The authors deal with available desulphurization methods of exhaust gases as a result of high sulphur fuel burning. Besides, problems of the operation of desulphurization installations and present limitations due to the lack of detailed regulations are discussed. Furthermore, first experiences with real desulphuri-zation systems, especially in terms of economy, are presented.
  • Krause, Paweł; Motor, Anatoly; Kalam, Azad Abul (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    Attempts to increase the profitability of SPI work inevitably result in the necessity of increasing the degree of utilizing waste heat from exhaust gases of marine main engines (ME). This analysis of possible use of turbo-generators is based on a comparison of available heat of ME exhaust gases with expected loads of ME, steam and electrical power consumption.
  • Kamiński, Włodzimierz; Krause, Paweł; Gumiński, Dariusz; Rajewski, Przemysław (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    The quality of marine fuels is standardised by the international standard ISO 8217. As practice shows, even fuels that meet all standard requirements do not completely guarantee avoiding disruptions in smooth and safe operation of the ship. The future is likely to bring more cases of improper operation of vessels, sometimes leading to main propulsion failures. One cause behind main engine breakdowns is the introduction of new products on the fuel market that are intended to meet the ever-increasing requirements of environmental protection (e.g. low sulphur content). As a result, some fuels are chemically different from the previously used residual fuels. Using them in the engine room requires special care on the part of the ship owner and the ship’s crew. The article analyses two cases in which the use of conventional residual fuels resulted in main engine stoppage. The authors, bearing in mind the causes of those failures, focus on technical consequences of using marine fuels produced by currently employed technologies.

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