A model of fuel combustion process in the marine reciprocating engine work space taking into account load and wear of crankshaft-piston assembly and the theory of semi-Markov processes

Jerzy Girtler

doi:10.1515/pomr-2016-0031

A model of fuel combustion process in the marine reciprocating engine work space taking into account load and wear of crankshaft-piston assembly and the theory of semi-Markov processes

Abstract

The ar ticle analyses the operation of reciprocal internal combu stion engines, with mar ine engines u sed a s an example. The analysis takes into account types of energy conversion in the work spaces (cylinders) of these engines, loads of their crankshaft-piston assemblies, and types of fuel combustion which can take place in these spaces during engine operation. It is highlighted that the analysed time-dependent loads of marine internal combustion engine crankshaft-piston assemblies are random processes. It is also indicated that the wear of elements of those assemblies resulting from their load should also be considered a random process. A hypothesis is formulated which explains random nature of load and the absence of the theoretically expected detonation combustion in engines supplied with such fuels as Diesel Oil, Marine Diesel Oil, and Heavy Fuel Oil. A model is proposed for fuel combustion in an arbitrary work space of a marine Diesel engine, which has the form of a stochastic four-state process, discrete in states and continuous in time. The model is based on the theory of semi-Markov processes.

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Jerzy Girtler prof. dr hab. inż.

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DOI:: Digital Object Identifier (open in new tab) 10.1515/pomr-2016-0031
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Category:: Articles
Type:: artykuł w czasopiśmie wyróżnionym w JCR
Published in:: Polish Maritime Research no. 23, pages 50 - 57,
ISSN: 1233-2585
Language:: English
Publication year:: 2016
Bibliographic description:: Girtler J.: A model of fuel combustion process in the marine reciprocating engine work space taking into account load and wear of crankshaft-piston assembly and the theory of semi-Markov processes// Polish Maritime Research. -Vol. 23, iss. 3(91) (2016), s.50-57
DOI:: Digital Object Identifier (open in new tab) 10.1515/pomr-2016-0031
Verified by:: Gdańsk University of Technology