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New Design of a CNG-H 2 -AIR Mixer for Internal Combustion Engines: An Experimental and Numerical Study

Author

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  • Hussein A. Mahmood

    (Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
    The Engineering Affairs Department, Presidency of the University of Baghdad, 999048 Baghdad, Iraq)

  • Nor Mariah. Adam

    (Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia)

  • B. B. Sahari

    (Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia)

  • S. U. Masuri

    (Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia)

Abstract

Several studies have aimed to convert diesel engines to dual- or tri-fuel engines to improve their fuel economy and reduce the emissions from diesel engine, however, most of these studies do not consider enhancing the homogeneity of fuel mixtures inside the engine and accurately controlling the air fuel ratio. In this study, a new air-fuel mixer was designed, manufactured and tested. The proposed air-gaseous fuel mixer design was conceived to be suitable for mixing air with compressed natural gas (CNG) and a blend of hydrogen and compressed natural gas (HCNG) that gives homogenous mixtures with high uniformity index and also to be easily connected with an Electronic Control Unit (ECU) for controlling accurately the air-gaseous fuel ratio for different engine speeds. For optimizing the homogeneity inside the new mixer, fourteen different mixer models were created to investigate the effects of diameter, location, and the number of holes inside the mixer on the homogeneity and distribution of the mixtures. Computational fluid dynamics analysis software was used to check the flow behavior, distribution and homogeneity of mixtures inside the new mixer models. The simulation results revealed that the best uniformity index (UI) values are obtained in model 7 where the UI values are 0.939 and 0.937, respectively, for an air fuel ratio for a blend of hydrogen and compressed natural gas (AFRHCNG) = 51.31 and the air fuel ratio for compressed natural gas (AFRCNG) = 34.15. According to the numerical and experimental results for the new mixer (model 7) under different engine speeds (1000–4000) and air-CNG ratio of 34.15, a meaningful agreement is reached between the experimental and numerical values for AFRCNG (coefficient of determination ( R 2 ) = 0.96 and coefficient of variation ( CoV ) = 0.001494).

Suggested Citation

  • Hussein A. Mahmood & Nor Mariah. Adam & B. B. Sahari & S. U. Masuri, 2017. "New Design of a CNG-H 2 -AIR Mixer for Internal Combustion Engines: An Experimental and Numerical Study," Energies, MDPI, vol. 10(9), pages 1-27, September.
  • Handle: RePEc:gam:jeners:v:10:y:2017:i:9:p:1373-:d:111482
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    References listed on IDEAS

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    1. Papagiannakis, R.G. & Kotsiopoulos, P.N. & Zannis, T.C. & Yfantis, E.A. & Hountalas, D.T. & Rakopoulos, C.D., 2010. "Theoretical study of the effects of engine parameters on performance and emissions of a pilot ignited natural gas diesel engine," Energy, Elsevier, vol. 35(2), pages 1129-1138.
    2. Paul, Abhishek & Panua, Raj Sekhar & Debroy, Durbadal & Bose, Probir Kumar, 2015. "An experimental study of the performance, combustion and emission characteristics of a CI engine under dual fuel mode using CNG and oxygenated pilot fuel blends," Energy, Elsevier, vol. 86(C), pages 560-573.
    3. Chintala, Venkateswarlu & Subramanian, K.A., 2013. "A CFD (computational fluid dynamics) study for optimization of gas injector orientation for performance improvement of a dual-fuel diesel engine," Energy, Elsevier, vol. 57(C), pages 709-721.
    4. Alrazen, Hayder A. & Abu Talib, A.R. & Adnan, R. & Ahmad, K.A., 2016. "A review of the effect of hydrogen addition on the performance and emissions of the compression – Ignition engine," Renewable and Sustainable Energy Reviews, Elsevier, vol. 54(C), pages 785-796.
    5. Khan, Muhammad Imran & Yasmeen, Tabassam & Khan, Muhammad Ijaz & Farooq, Muhammad & Wakeel, Muhammad, 2016. "Research progress in the development of natural gas as fuel for road vehicles: A bibliographic review (1991–2016)," Renewable and Sustainable Energy Reviews, Elsevier, vol. 66(C), pages 702-741.
    6. Chintala, Venkateswarlu & Subramanian, K.A., 2016. "CFD analysis on effect of localized in-cylinder temperature on nitric oxide (NO) emission in a compression ignition engine under hydrogen-diesel dual-fuel mode," Energy, Elsevier, vol. 116(P1), pages 470-488.
    7. Florian Zurbriggen & Richard Hutter & Christopher Onder, 2016. "Diesel-Minimal Combustion Control of a Natural Gas-Diesel Engine," Energies, MDPI, vol. 9(1), pages 1-19, January.
    8. Jonathon Sumner & Christophe Sibuet Watters & Christian Masson, 2010. "CFD in Wind Energy: The Virtual, Multiscale Wind Tunnel," Energies, MDPI, vol. 3(5), pages 1-25, May.
    9. Zhou, J.H. & Cheung, C.S. & Zhao, W.Z. & Leung, C.W., 2016. "Diesel–hydrogen dual-fuel combustion and its impact on unregulated gaseous emissions and particulate emissions under different engine loads and engine speeds," Energy, Elsevier, vol. 94(C), pages 110-123.
    10. Yadav, Vinod Singh & Soni, S.L. & Sharma, Dilip, 2014. "Engine performance of optimized hydrogen-fueled direct injection engine," Energy, Elsevier, vol. 65(C), pages 116-122.
    11. Carlucci, A.P. & de Risi, A. & Laforgia, D. & Naccarato, F., 2008. "Experimental investigation and combustion analysis of a direct injection dual-fuel diesel–natural gas engine," Energy, Elsevier, vol. 33(2), pages 256-263.
    12. Li, Weifeng & Liu, Zhongchang & Wang, Zhongshu, 2016. "Experimental and theoretical analysis of the combustion process at low loads of a diesel natural gas dual-fuel engine," Energy, Elsevier, vol. 94(C), pages 728-741.
    13. Yang, Bo & Xi, Chengxun & Wei, Xing & Zeng, Ke & Lai, Ming-Chia, 2015. "Parametric investigation of natural gas port injection and diesel pilot injection on the combustion and emissions of a turbocharged common rail dual-fuel engine at low load," Applied Energy, Elsevier, vol. 143(C), pages 130-137.
    14. Tobias Ott & Christopher Onder & Lino Guzzella, 2013. "Hybrid-Electric Vehicle with Natural Gas-Diesel Engine," Energies, MDPI, vol. 6(7), pages 1-22, July.
    15. Khan, Muhammad Imran & Yasmin, Tabassum & Shakoor, Abdul, 2015. "Technical overview of compressed natural gas (CNG) as a transportation fuel," Renewable and Sustainable Energy Reviews, Elsevier, vol. 51(C), pages 785-797.
    16. Yaliwal, V.S. & Banapurmath, N.R. & Gireesh, N.M. & Hosmath, R.S. & Donateo, Teresa & Tewari, P.G., 2016. "Effect of nozzle and combustion chamber geometry on the performance of a diesel engine operated on dual fuel mode using renewable fuels," Renewable Energy, Elsevier, vol. 93(C), pages 483-501.
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    Cited by:

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    2. La Xiang & Enzhe Song & Yu Ding, 2018. "A Two-Zone Combustion Model for Knocking Prediction of Marine Natural Gas SI Engines," Energies, MDPI, vol. 11(3), pages 1-23, March.

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