Modelling and parametric investigation of a large marine two-stroke dual fuel engine

Christoforos Mavrelos, Gerasimos Theotokatos

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Abstract

This work deals with the modelling of a large marine two-stroke dual duel engine of the low gas pressure concept by using the GT-PowerTM software. Appropriate models were used to represent the engine processes including combustion, scavenging, heat transfer and friction whereas a knocking model was employed to characterise the engine unstable operation. The model was first validated against the manufacturer data and subsequently, the entire engine envelope in both operating modes was simulated. The derived results were used for analysing and discussing the engine performance and emissions as well as for comparing the two operating modes in terms of the turbocharger matching. In addition, parametric runs were performed and the results were used for identifying the settings that can further optimize the engine operation in the dual fuel mode in terms of CO2 and NOx emissions trade-off.
Original languageEnglish
Pages174-179
Number of pages6
Publication statusPublished - 19 Oct 2017
EventThe 11th International Symposium of Marine Engineering - Tokyo, Japan
Duration: 15 Oct 201719 Oct 2017
http://www.isme2017.jime.jp/

Conference

ConferenceThe 11th International Symposium of Marine Engineering
Abbreviated titleISME2017
CountryJapan
CityTokyo
Period15/10/1719/10/17
Internet address

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Keywords

  • marine two-stroke engines
  • simulation
  • premixed combustion
  • parametric investigation

Cite this

Mavrelos, C., & Theotokatos, G. (2017). Modelling and parametric investigation of a large marine two-stroke dual fuel engine. 174-179. Paper presented at The 11th International Symposium of Marine Engineering, Tokyo, Japan.