Improved transient control of a two-stroke marine diesel engine with variable geometry turbine

Nikolaos Xiros, Gerasimos Theotokatos

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

In this work, the cycle-mean-value approach to marine engine process simulation is considered. At first, a basic principles model is employed where the engine crankshaft and turbocharger shaft speeds are obtained by integration of the angular momentum conservation differential equations. Any other engine variable can then be obtained by solving a set of nonlinearly-coupled, algebraic equations, corresponding to energy and mass conservation through the engine. Nonlinear data analysis is then performed on this process model. By approximating the torque maps, generated by the thermodynamic basic principles model, with neural nets, explicit functional relationships are obtained. Identification of the power-plant operating regimes through linearization and decomposition is finally performed. In effect, a supervisory power-plant controller structure, applicable to real-time control and diagnostics, is proposed, incorporating the nonlinear state-space description of the plant.
Original languageEnglish
Pages85-94
Number of pages10
DOIs
Publication statusPublished - 2011
EventASME-Internal Combustion Engine Division (ICED), 2011 Fall Technical Conference, - Morgantown, United States
Duration: 2 Oct 20115 Oct 2011

Conference

ConferenceASME-Internal Combustion Engine Division (ICED), 2011 Fall Technical Conference,
CountryUnited States
CityMorgantown
Period2/10/115/10/11

Keywords

  • marine diesel engine
  • marine engineering
  • thermodynamic energy
  • variable geometry turbine

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    Xiros, N., & Theotokatos, G. (2011). Improved transient control of a two-stroke marine diesel engine with variable geometry turbine. 85-94. Paper presented at ASME-Internal Combustion Engine Division (ICED), 2011 Fall Technical Conference, Morgantown, United States. https://doi.org/10.1115/ICEF2011-60199