Naslov
Steady state performances analysis of modern marine two-stroke low speed diesel engine using mlp neural network model

Autori
Bukovac, Ozren ; Medica, Vladimir ; Mrzljak, Vedran

Izvornik
Brodogradnja (0007-215X) 66 (2015), 4; 57-70

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, izvorni znanstveni članak, znanstveni

Ključne riječi
marine two-stroke diesel engine ; MLP neural network ; Numerical simulation ; Utilization ; start of fuel injection ; time of exhaust valve open

Sažetak
Compared to the other marine engines for ship propulsion, turbocharged two-stroke low speed diesel engines have advantages due to their high efficiency and reliability. Modern low speed ”intelligent” marine diesel engines have a flexibility in its operation due to the variable fuel injection strategy and management of the exhaust valve drive. This paper carried out verified zerodimensional numerical simulations which have been used for MLP (Multilayer Perceptron) neural network predictions of marine two-stroke low speed diesel engine steady state performances. The developed MLP neural network was used for marine engine optimized operation control. The paper presents an example of achieving lowest specific fuel consumption and for minimization of the cylinder process highest temperature for reducing NOx emission. Also, the developed neural network was used to achieve optimal exhaust gases heat flow for utilization. The obtained data maps give insight into the optimal working areas of simulated marine diesel engine, depending on the selected start of the fuel injection (SOI) and the time of the exhaust valve opening (EVO).

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

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