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Numerical analysis of the scavenge flow and convective heat transfer in large two-stroke marine diesel engines

Author

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  • Sigurdsson, E.
  • Ingvorsen, K.M.
  • Jensen, M.V.
  • Mayer, S.
  • Matlok, S.
  • Walther, J.H.

Abstract

A novel computational fluid dynamics (CFD) model is presented for the study of the scavenging process and convective heat transfer in a large two-stroke low-speed uniflow-scavenged marine diesel engine. The engine is modeled using a fully resolved 12° sector, corresponding to one scavenge port, with cyclic boundaries in the tangential direction. The CFD model is strongly coupled to experiments and effectively provides a high order “interpolation” of the engine processes through the solution of the Reynolds-Averaged Navier–Stokes (RANS) equations subject to boundary conditions obtained through experiments. The imposed experimental data includes time histories of the pressure difference across the engine and the heat release during combustion. The model is validated by a numerical sensitivity analysis and through a comparison of model predictions and experimental data, which shows a good agreement. The results show an effective scavenging and a low convective heat loss in agreement with experimental data for large marine diesel engines.

Suggested Citation

  • Sigurdsson, E. & Ingvorsen, K.M. & Jensen, M.V. & Mayer, S. & Matlok, S. & Walther, J.H., 2014. "Numerical analysis of the scavenge flow and convective heat transfer in large two-stroke marine diesel engines," Applied Energy, Elsevier, vol. 123(C), pages 37-46.
    • Handle: RePEc:eee:appene:v:123:y:2014:i:c:p:37-46
    DOI: 10.1016/j.apenergy.2014.02.036
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    References listed on IDEAS

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    1. Xu, Shuaiqing & Wang, Yang & Zhu, Tao & Xu, Tao & Tao, Chengjun, 2011. "Numerical analysis of two-stroke free piston engine operating on HCCI combustion," Applied Energy, Elsevier, vol. 88(11), pages 3712-3725.
    2. Mikalsen, R. & Roskilly, A.P., 2009. "A computational study of free-piston diesel engine combustion," Applied Energy, Elsevier, vol. 86(7-8), pages 1136-1143, July.
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    1. Fukang Ma & Changlu Zhao & Fujun Zhang & Zhenfeng Zhao & Shuanlu Zhang, 2015. "Effects of Scavenging System Configuration on In-Cylinder Air Flow Organization of an Opposed-Piston Two-Stroke Engine," Energies, MDPI, vol. 8(6), pages 1-19, June.
    2. Krishna, Addepalli S. & Mallikarjuna, J.M. & Kumar, Davinder, 2016. "Effect of engine parameters on in-cylinder flows in a two-stroke gasoline direct injection engine," Applied Energy, Elsevier, vol. 176(C), pages 282-294.
    3. Maria Faruoli & Alessandro Coclite & Annarita Viggiano & Paolo Caso & Vinicio Magi, 2021. "A Comprehensive Numerical Analysis of the Scavenging Process in a Uniflow Two-Stroke Diesel Engine for General Aviation," Energies, MDPI, vol. 14(21), pages 1-19, November.
    4. Wang, Dawei & Shi, Lei & Zhu, Sipeng & Liu, Bo & Qian, Yuehua & Deng, Kangyao, 2020. "Numerical and thermodynamic study on effects of high and low pressure exhaust gas recirculation on turbocharged marine low-speed engine," Applied Energy, Elsevier, vol. 261(C).
    5. Fukang Ma & Zhenfeng Zhao & Yangang Zhang & Jun Wang & Yaonan Feng & Tiexiong Su & Yi Zhang & Yuhang Liu, 2017. "Simulation Modeling Method and Experimental Investigation on the Uniflow Scavenging System of an Opposed-Piston Folded-Cranktrain Diesel Engine," Energies, MDPI, vol. 10(5), pages 1-18, May.
    6. Fu-Kang Ma & Jun Wang & Yao-Nan Feng & Yan-Gang Zhang & Tie-Xiong Su & Yi Zhang & Yu-Hang Liu, 2017. "Parameter Optimization on the Uniflow Scavenging System of an OP2S-GDI Engine Based on Indicated Mean Effective Pressure (IMEP)," Energies, MDPI, vol. 10(3), pages 1-20, March.
    7. Sakellaridis, Nikolaos F. & Raptotasios, Spyridon I. & Antonopoulos, Antonis K. & Mavropoulos, Georgios C. & Hountalas, Dimitrios T., 2015. "Development and validation of a new turbocharger simulation methodology for marine two stroke diesel engine modelling and diagnostic applications," Energy, Elsevier, vol. 91(C), pages 952-966.
    8. Ling-Chin, Janie & Roskilly, Anthony P., 2016. "Investigating the implications of a new-build hybrid power system for Roll-on/Roll-off cargo ships from a sustainability perspective – A life cycle assessment case study," Applied Energy, Elsevier, vol. 181(C), pages 416-434.
    9. Pang, Kar Mun & Karvounis, Nikolas & Walther, Jens Honore & Schramm, Jesper, 2016. "Numerical investigation of soot formation and oxidation processes under large two-stroke marine diesel engine-like conditions using integrated CFD-chemical kinetics," Applied Energy, Elsevier, vol. 169(C), pages 874-887.
    10. Pang, Kar Mun & Karvounis, Nikolas & Walther, Jens Honore & Schramm, Jesper & Glarborg, Peter & Mayer, Stefan, 2017. "Modelling of temporal and spatial evolution of sulphur oxides and sulphuric acid under large, two-stroke marine engine-like conditions using integrated CFD-chemical kinetics," Applied Energy, Elsevier, vol. 193(C), pages 60-73.
    11. Michael I. Foteinos & Alexandros Papazoglou & Nikolaos P. Kyrtatos & Anastassios Stamatelos & Olympia Zogou & Antiopi-Malvina Stamatellou, 2019. "A Three-Zone Scavenging Model for Large Two-Stroke Uniflow Marine Engines Using Results from CFD Scavenging Simulations," Energies, MDPI, vol. 12(9), pages 1-20, May.

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