Wyniki wyszukiwania - BazTech

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Methodology for optimising the hull shape of a vessel with restricted draft

Illes Ladislav, Jurkovic Martin, Kalina Tomas, Gorzelanczyk Piotr, Luptak Vladimir

Zeszyty Naukowe. Transport / Politechnika Śląska

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2021

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z. 110

59--71

EN

Increasing transport volumes on Europe's inland waterways is a major reason for improving the quality and reliability of internationally important waterways. Continued navigation restrictions due to restricted draft (draught) led to the search for new design solutions. Such solutions enable navigation even under critical navigation conditions. Restricted draft is one of the most important limitations that hinder navigation, especially in the summer. The main objective of the construction of an inland vessel is to obtain a shape that will achieve optimum performance with as little resistance as possible. A shape that will be able to navigate at a limited depth. Presently, there is no clearly defined methodology as a procedure for optimising the hull. When solving theoretical problems of shipbuilding character and ship calculations, it is necessary to consider the basic theory of the ship with special regard to the latest methodological procedures of related scientific disciplines. This paper presents a methodology that considers all the basic aspects of optimisation tasks in ship design and construction.

2

Analysis of road traffic safety in the Piła poviat

Gorzelańczyk Piotr, Pyszewska Daria, Kalina Tomas, Jurkovič Martin

Zeszyty Naukowe. Transport / Politechnika Śląska

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2020

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z. 107

33--52

EN

Every year, a lot of people lose their lives and health on Polish roads, which at best ends up damaging the car. Resultantly, the high rate of accidents prompted this study in conjunction with the Poviat Police Headquarters in Piła to analyse road traffic safety in the Piła poviat. To this end, road events occurring in Poland and in the Piła poviat were analysed. In addition, the most common types of road incidents were identified alongside the main reasons for their occurrence. By analysing traffic incidents, a map of the most dangerous streets in Piła was created. A survey was conducted to verify the statistical data presented on the state of safety in the Piła poviat. The survey on road safety in the Piła poviat was created in cooperation with the Poviat Police Headquarters in Piła and was conducted among the residents of the Piła poviat. Inhabitants of the Piła poviat feel safe on the roads along the roads of their poviat.

3

Influence of motorization development on civilization diseases

Gorzelanczyk Piotr, Jurkovic Martin, Kalina Tomas, Sosedova Jarmila, Luptak Vladimir

Transport Problems

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2020

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T. 15, z. 3

53--66

EN

The health style of the population has deteriorated in the last 10 years, given the possibilities offered by an increasingly advanced civilization. The paper attempts to find the answer to the question whether the development of motorization has an effect on civilization diseases. To this end, the paper began with an analysis of the registered numer of means of transport in Poland and an analysis of the number of cases of malignant and respiratory tract cancers. Then, the focus was on the analysis of exhaust toxicity, discussing its definition and determining the limit values for exhaust toxicity occurring in the means of transport. In the next section, the paper was carried out on the toxicity of exhaust gases of lorries and passenger cars affecting human health. Finally, the paper ends by summarizing the results and drawing the appropriate conclusions.

4

Proposal of Conversion the Tugboat Engines to Diesel – LNG Operation

Jurkovic Martin, Kalina Tomas, Jancosek Lubomir, Kadnar Robert, Gorzelanczyk Piotr, Jerabek Karel

Advances in Science and Technology. Research Journal

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2019

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Vol. 13, no 4

129--142

EN

International shipping is the source of around 3% of global CO2 emissions. Liquefied natural gas (LNG) is currently considered the only reasonable and commercially advanced alternative to the petroleum-based ship fuels. Liquefied natural gas can make a significant contribution to the diversification of transport fuels, reducing the greenhouse gas emissions from ships and heavy vehicles. The introduction of LNG technology as a drive for inland ships is a complex process. It requires activities in various areas, including development, legislation, building infrastructure, construction of new ships or their reconstruction. The greatest problem now seems to be the certainty of investing in the new fleet or their reconstruction. It is therefore desirable to assure shipowners that the investment in renewing or reconstruction should be guaranteed. This paper provides a study of reconstruction of the inland tugboat (tug) to a dual fuel system (diesel – LNG). A tugboat used by Slovak shipping company was chosen as a model vessel. The results presented a comprehensive design of the main and auxiliary engine remodelling, as well as the design of the vessel’s tanks and show how the conversion affects the basic navigational characteristics of the tugboat. Finally, the results point to the conversion methodology which is partly applicable to another type of inland tug, considering the individual specificities.