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  • Author: Dalibor Barta x
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Open access

Cezary Behrendt and Dalibor Barta

Abstract

The maritime environment protection is increasingly reflected in legal regulations regarding, inter alia, the harmful exhaust gas components emitted by marine combustion engines. The provisions imposing the emission limits for SOx, NOx and CO2 are included in MARPOL 73/78 ANNEX VI adopted by the International Maritime Organization (IMO). However, as of today, these provisions are not applicable to fishing cutters. One of the methods, both to decrease emissions’ volume and also to reduce the operating costs of ships, is to lower fuel consumption of marine energetic systems. The paper presents a proposition of energy-efficient and environmentally friendly energetic systems for coastal fishing cutters. It also demonstrates the importance of the said systems and includes the elaboration regarding the impact of fuel type, renewable energy sources and energy conversion methods on the hazards to the environment caused by the emission of harmful exhaust gas components. The presented solutions refer to fishing cutters of the length of 15-30 m and are categorized into two groups. The division criterion applied is an access to technologies currently available and future technologies enabling the use of alternative energy sources.

Open access

Marcin Szczepanek, Przemysław Rajewski and Dalibor Barta

Abstract

The Energy Efficiency Design Index (EEDI) became mandatory for new ships as well as the Ship Energy Efficiency Management Plan (SEEMP) for all ships due to the MEPC 62 (July 2011) along with the adoption of amendments to MARPOL Annex VI by the Parties to the MARPOL Annex VI. This was the first legally binding climate change treaty to be adopted since the Kyoto Protocol. The Ship Energy Efficiency Management Plan (SEEMP), which has been obligatory since 2013, did not to cover fishing cutters but triggered the implementation of energy efficiency audits due to fishing limits, high fuel prices, and free freight market. A research team of the Maritime University of Szczecin conducted energy efficiency audits on several fishing vessels operated on the Baltic Sea and provided the results to the shipowners. On their grounds, the shipowners started seeking methods to reduce energy consumption. They began modernizing the vessels using the information collected in the reports on energy audits. Usually, the modernization process is performed in several stages. Apart from energy recovery installations, fishing vessels were furnished with the latest technologies aimed at the reduction of energy consumption and at making ships greener. The paper presents results of the said process at the selected fishing cutters operating on the Baltic Sea. The paper includes also the recommendations on the directions of the following stages of the audits.

Open access

Marcin Szczepanek, Przemysław Rajewski, Dalibor Barta and Iwona Michalska-Pożoga

Abstract

The Energy Efficiency Design Index (EEDI) became mandatory for new ships as well as the Ship Energy Efficiency Management Plan (SEEMP) for all ships due to the MEPC 62 (July 2011) along with the adoption of amendments to MARPOL Annex VI by the Parties to the MARPOL Annex VI. This was the first legally binding climate change treaty to be adopted since the Kyoto Protocol. The Ship Energy Efficiency Management Plan (SEEMP), which has been obligatory since 2013, did not to cover fishing cutters but triggered the implementation of energy efficiency audits due to fishing limits, high fuel prices, and free freight market. All the above caused that ship-owners started seeking ways for saving money and keep their business profitable. Apart from energy recovery installations, fishing vessels have been furnished with the latest technologies aimed at the reduction of energy consumption and at making ships greener. A research team of the Maritime University of Szczecin conducted energy efficiency audits on several fishing vessels operated on the Baltic Sea and stated that up to 40% of the energy is used during fishing operations by hydraulic devices installed at the fishing vessels. The paper presents the measurement results of energy consumption in typical operational states based on a selected fishing cutter operating at the Baltic Sea. The paper includes also the recommendations in terms modernization of hydraulic installations and the changes of control methods for devices with hydraulic drive. The calculations are also presented herein and they prove that it is possible to reduce energy consumption by a fishing cutter even by 20% while maintaining the unchanged operating parameters of the hydraulic devices.

Open access

Zbigniew Matuszak, Michał Bartosz and Dalibor Barta

Abstract

In the article are characterized two network methods (critical path method - CPM and program evaluation and review technique - PERT). On the example of an international furniture company’s product, it presented the exemplification of methods to transport cargos (furniture elements). Moreover, the study showed diagrams for transportation of cargos from individual components’ producers to the final destination - the showroom. Calculations were based on the transportation of furniture elements via small commercial vehicles.