Analysis of two stroke marine diesel engine operation including turbocharger cut-out by using a zero-dimensional model

Cong Guan, Gerasimos Theotokatos, Hui Chen

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

In this article, the operation of a large two-stroke marine diesel engine including various cases with turbocharger cut-out was thoroughly investigated by using a modular zero-dimensional engine model built in MATLAB/Simulink environment. The model was developed by using as a basis an in-house modular mean value engine model, in which the existing cylinder block was replaced by a more detailed one that is capable of representing the scavenging ports-cylinder-exhaust valve processes. Simulation of the engine operation at steady state conditions was performed and the derived engine performance parameters were compared with the respective values obtained by the engine shop trials. The investigation of engine operation under turbocharger cut-out conditions in the region from 10% to 50% load was carried out and the influence of turbocharger cut-out on engine performance including the in-cylinder parameters was comprehensively studied. The recommended schedule for the combination of the turbocharger cut-out and blower activation was discussed for the engine operation under part load conditions. Finally, the influence of engine operating strategies on the annual fuel savings, CO2 emissions reduction and blower operating hours for a Panamax container ship operating at slow steaming conditions is presented and discussed.
LanguageEnglish
Pages5738-5764
Number of pages28
JournalEnergies
Volume8
Issue number6
DOIs
Publication statusPublished - 16 Jun 2015

Fingerprint

Marine engines
Diesel engines
Engines
Blowers
Engine cylinders
Cylinder blocks
Scavenging
MATLAB
Containers
Ships
Chemical activation

Keywords

  • two-stroke marine diesel engine
  • zero-dimensional model
  • part load operation
  • turbocharger cut-out
  • blower activation

Cite this

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abstract = "In this article, the operation of a large two-stroke marine diesel engine including various cases with turbocharger cut-out was thoroughly investigated by using a modular zero-dimensional engine model built in MATLAB/Simulink environment. The model was developed by using as a basis an in-house modular mean value engine model, in which the existing cylinder block was replaced by a more detailed one that is capable of representing the scavenging ports-cylinder-exhaust valve processes. Simulation of the engine operation at steady state conditions was performed and the derived engine performance parameters were compared with the respective values obtained by the engine shop trials. The investigation of engine operation under turbocharger cut-out conditions in the region from 10{\%} to 50{\%} load was carried out and the influence of turbocharger cut-out on engine performance including the in-cylinder parameters was comprehensively studied. The recommended schedule for the combination of the turbocharger cut-out and blower activation was discussed for the engine operation under part load conditions. Finally, the influence of engine operating strategies on the annual fuel savings, CO2 emissions reduction and blower operating hours for a Panamax container ship operating at slow steaming conditions is presented and discussed.",
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Analysis of two stroke marine diesel engine operation including turbocharger cut-out by using a zero-dimensional model. / Guan, Cong; Theotokatos, Gerasimos; Chen, Hui.

In: Energies, Vol. 8, No. 6, 16.06.2015, p. 5738-5764.

Research output: Contribution to journalArticle

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