Identifying the issue of reducing the emission of harmful compounds in the exhaust gas from marine main engines and description of the emission process of these compounds in probabilistic approach

• Autorzy: Łosiewicz Z.
• Języki publikacji: EN

Abstrakty

EN

The article discusses the results of actions performed by marine engine manufacturers towards the reduction of emission of harmful substances in the exhaust gas from these engines. The discussion is limited to main engines produced by MAN B&W. A model is proposed to describe the process of emission of harmful substances from Diesel engines based on the semi-Markov process, discrete in states and continuous in the operating time. The states of this process are: engine ability state (s1) and engine inability state (s2). A method to calculate probabilities P1 and P2 of the appearance of states s1 and s2 is proposed. State s1 is interpreted as corresponding to the inequality ek<ek(dop), while state s2 is characterised by the inequality ek>ek(dop), where ek represents the mass of harmful substances emitted by the engine during its operation and ek(dop) is the maximum mass of emission of these substances permitted by relevant regulations.

Słowa kluczowe

EN

ship’s main engine; semi-Markov process; diesel engine; harmful substance

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2017
• Tom: nr 2
• Strony: 89--95
• Opis fizyczny: Bibliogr. 24 poz., rys.

Twórcy

autor

Łosiewicz Z.

• Faculty of Maritime Technology and Transport West Pomeranian University of Technology Szczecin Al. Piastów 41 71-065 Szczecin, Poland

Bibliografia

• 1. Analysing possibilities of application of pro-ecological fuels in internal combustion engines of inland passenger ships in the aspect of their durability, reliability and cost efficiency of their operation, taking into account ship refuelling issues (in Polish). Research work No. 183/E/05 done within the framework of Project EUREKA INCOWATRANS E-3065.
• 2. Bielaczyc P., Merkisz J., Pielecha J.: Thermal state of internal combustion engine and resultant emission of harmful compounds (in Polish). Wydawnictwo Politechniki Poznańskiej, Poznań 2001.
• 3. Emission Control, MAN B&W Two-Stroke Low-Speed Diesel Engines. MAN B&W Diesel A/S, Copenhagen 2004.
• 4. Geist M.: Sulzer RTA-T - Technology Review. Wartsila NSD Switzerland Ltd., Winterthur 1998.
• 5. Girtler J.: Physical aspect of application and usefulness of semi-Markovian processes for modeling the processes occurring in operational phase of technical objects. Polish Maritime Research, No 3(41) 2004, Vol. 11, pp. 25-30.
• 6. Girtler J., Kuszmider S., Plewiński L.: Selected issues of operation of sea-going vessels in the aspect of navigation safety (in Polish). Monograph. WSM, Szczecin 2003.
• 7. Girtler J.: A probabilistic method to determine the mass of harmful substances emitted by a Diesel engine during its start (in Polish). ZN Akademii Morskiej w Szczecinie. R10, No. 82 (2006), pp. 193-204.
• 8. Girtler J.: Identifying operating conditions of crankshaftpiston system of marine main engines. Report on research activities done within the framework of Project N N509 494638 financed by the Ministry of Science and Higher Education. The individual research project entitled: „Decision making based control of theprocess of crankshaft and piston system operation of main propulsion engines on sea-going vessels using technical diagnostics and taking into account safety and environment protection (in Polish).Research works No. 01/10/PB. Gdansk University of Technology, Faculty of Ocean Engineering and Ship Technology, Gdansk 2010.
• 9. Girtler J., Łosiewicz: Analysing properties of the diagnostic model for crankshaft and piston systems, adapted for the needs of rational control of operation of these engines in the aspects of ship and marine environment safety. Report on research activities done within the framework of ProjectN N509 494638 financed by the Ministry of Science and Higher Education. The individual research project entitled: „Decision making based control of the process of crankshaft and piston system operation of main propulsion engines on sea-going vessels using technical diagnostics and taking into account safety and environment protection (in Polish).Research works No. 06/10/PB. Gdansk University of Technology, Faculty of Ocean Engineering and Ship Technology, Gdansk 2010.
• 10. Grabski F.: Theory of semi-Markovprocesses of technical object operation (in Polish). Zeszyty Naukowe AMW, No. 75 A, Gdynia 1982.
• 11. Grabski F.: Semi-Markov models of reliability and operation (in Polish). IBS PAN. Series BADANIA SYSTEMOWE, vol.30, Warsaw 2002.
• 12. Henningsen S.: Clin Ships: Advanced Technology for Clean Air. MAN Diesel A/S, San Diego, February 2007.
• 13. Höglund P.G., Ydstedt A.: Reduced Air Pollution and Fuel Consumption with Preheated Car Engines. Urban Transport and the Environment for the 21st Century, International Conference, Lisbon 1998.
• 14. Larson R.E.: Vehicle Emission Characteristics under Cold Ambient Conditions. SAE Technical Paper 890021.
• 15. Lindl B., Schmotz H.G.: Cold Start Equipment for Diesel Direct Injection Engines. SAE Technical Paper 1999-01-1244.
• 16. Lotko W.: Supplying internal combustion engines with alternative fuels (in Polish). ITE, Radom 1995.
• 17. Łosiewicz Z.: Operating qualities of the diagnosing system CoCoS produced by MAN&BW for marine Diesel engines (in Polish). Zeszyty Naukowe No. 162 K/2, AMW w Gdyni, pp. 249-260, AMW w Gdyni, Gdynia 2005.
• 18. ME Engine – the New Generation of Diesel Engines. MAN B&W Diesel AS, Copenhagen 2003.
• 19. Piotrowski I., Witkowski K.: Operation of ship internal combustion engines (in Polish). AM, Gdynia 2002.
• 20. Rudnicki J., Zadrąg R.: Problems of modelling toxic compounds emitted by a marine internal combustion engine in unsteady states. Journal of Polish Maritime Research, No.4(84) 2014, Vol.21 pp.57-65. 2014.
• 21. Samhaber Ch., Wimmer A., Loibner E., Bartsch P.: Simulation of Engine Warm-Up. 21 Internationales Wiener Motorensymposium, Vienna 2000.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)