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
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 emiss...
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| Format: | Article |
| Language: | English |
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Sciendo
2017-06-01
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| Series: | Polish Maritime Research |
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| Online Access: | https://doi.org/10.1515/pomr-2017-0054 |
| _version_ | 1819116192803061760 |
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| author | Łosiewicz Zbigniew |
| author_facet | Łosiewicz Zbigniew |
| author_sort | Łosiewicz Zbigniew |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-22T05:13:11Z |
| format | Article |
| id | doaj.art-dda87a47f12448749029e0d55f44173c |
| institution | Directory Open Access Journal |
| issn | 2083-7429 |
| language | English |
| last_indexed | 2024-12-22T05:13:11Z |
| publishDate | 2017-06-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Polish Maritime Research |
| spelling | doaj.art-dda87a47f12448749029e0d55f44173c2022-12-21T18:37:56ZengSciendoPolish Maritime Research2083-74292017-06-01242899510.1515/pomr-2017-0054pomr-2017-0054Identifying 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 ApproachŁosiewicz Zbigniew0Faculty of Maritime Technology and Transport, West Pomeranian University of Technology Szczecin, Al. Piastów 41 71-065 Szczecin, PolandThe 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.https://doi.org/10.1515/pomr-2017-0054ship’s main enginesemi-markov processdiesel engineharmful substance |
| spellingShingle | Łosiewicz Zbigniew 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 Polish Maritime Research ship’s main engine semi-markov process diesel engine harmful substance |
| title | 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 |
| title_full | 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 |
| title_fullStr | 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 |
| title_full_unstemmed | 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 |
| title_short | 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 |
| title_sort | 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 |
| topic | ship’s main engine semi-markov process diesel engine harmful substance |
| url | https://doi.org/10.1515/pomr-2017-0054 |
| work_keys_str_mv | AT łosiewiczzbigniew identifyingtheissueofreducingtheemissionofharmfulcompoundsintheexhaustgasfrommarinemainenginesanddescriptionoftheemissionprocessofthesecompoundsinprobabilisticapproach |