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

Zbigniew ?osiewiczFaculty of Maritime Technology and Transport, West Pomeranian University of Technology Szczecin, Al. Piastów 41 71-065 Szczecin, PolandEmailOther articles by this author:De Gruyter OnlineGoogle Scholar¹ 

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

关键词: Keywords: ship’s main engine;    semi-Markov process;    Diesel engine;    harmful substance;   

DOI  :  10.1515/pomr-2017-0054

学科分类：工程和技术（综合）

来源: Politechnika Gdanska * Wydzial Oceanotechniki i Okretownictwa

【 摘 要 】

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 ekek(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.

【 授权许可】

Unknown