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Strategies for Low Engine Speed Torque Enhancement of Natural Gas Engine Used for Commercial Vehicles: Observations with Compression Ratio

  • Pritesh J. Suple
  • Chandrakant R. SonawaneEmail author
  • S. S. Thipse
  • J. P. Mohite
  • N. B. Chougule
Conference paper
  • 9 Downloads
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

Since many years diesel engines are powering commercial vehicles. Of late, governments are promoting the use of natural gas (NG) as a fuel for such vehicles to reduce pollution. Thereafter, natural gas engines have witnessed faster development, especially for use in commercial vehicles. City bus is probably the most common NG commercial vehicle, dedicated to ferry passengers across the city. Some places impose a safety speed limit on such vehicles considering local traffic conditions. Thus, a typical scenario faced by such vehicles includes low drive speeds, high loads, frequent halts for passenger pick up and drop, signals, etc. Such vehicles thus need high torque at low engine speeds to  manage these daily occuring conditions. Aim of this paper is to enhance torque at low-engine speed zone. Number of options such as the use of a turbocharger, direct injection of fuel, variable valve actuation, programmable waste-gates, etc. can help to realize higher engine outputs. The intent here is to study the effect of compression ratio and understand the extent of change in torque in engine low-engine speed region. Current study consists of modelling a reference commercial vehicle engine of six cylinders. A virtual model is built and its ability to represent actual engine performance from testbed is verified. Further, such model undergoes iterations of change in compression ratio and different parameters are studied for their relation with torque.

Keywords

Compressed natural gas engine Low-speed torque Compression ratio 

References

  1. 1.
    Reddy BS (1995) Transportation, energy and environment: a case study of Bangalore. Econ Polit Wkly 30(3):161–170Google Scholar
  2. 2.
    Parker RS, Pettijohn CE (1997) The use of alternative fuels in the private trucking industry: is there a viable target market? J Mark Theory Pract 5(4):88–93. (Fall)  https://doi.org/10.1080/10696679.1997.11501783
  3. 3.
    Frost & Sullivan (2016) HD transit bus market—global analysis. In: Presentation in market engineering, NF63-18Google Scholar
  4. 4.
    Jacob J, Abhimanyu Y, Kumar AH, Singh S (2014) Strategic analysis of compressed natural gas (CNG) passenger cars market in Europe. In: Presentation in market engineering, MA30-18. Frost & SullivanGoogle Scholar
  5. 5.
    Gharehghani A, Koochak M, Mirsalim M, Yusaf T (2013) Experimental investigation of thermal balance of a turbocharged SI engine operating on natural gas. Appl Thermal Eng 60:200–207.  https://doi.org/10.1016/j.applthermaleng.2013.06.029CrossRefGoogle Scholar
  6. 6.
    Thipse S, Dsouza A, Sonawane S, Rairikar S et al (2017) Development of multi cylinder turbocharged natural gas engine for heavy duty application. SAE Int J Engines 10(1).  https://doi.org/10.4271/2017-26-0065
  7. 7.
    Kalam MA, Masjuki HH (2011) An experimental investigation of high performance natural gas engine with direct injection. Energy 36:3563–3571.  https://doi.org/10.1016/j.energy.2011.03.066CrossRefGoogle Scholar
  8. 8.
    Semin I, Ismail A, Bakar A (2009) Investigation of torque performance effect of development of sequential injection CNG engine. J Appl Sci 9(13):2416–2423CrossRefGoogle Scholar
  9. 9.
    Yan B, Wang H, Zheng Z, Qin Y et al (2017) The effect of combustion chamber geometry on in-cylinder flow and combustion process in a stoichiometric operation natural gas engine with EGR. Appl Thermal Eng.  https://doi.org/10.1016/j.applthermaleng.2017.09.067CrossRefGoogle Scholar
  10. 10.
    Yadollahi B, Boroomand M (2013) The effect of combustion chamber geometry on injection and mixture preparation in a CNG direct injection SI engine. Fuel 107:52–62.  https://doi.org/10.1016/j.fuel.2013.01.004CrossRefGoogle Scholar
  11. 11.
    Wu C, Deng K, Wang Z (2015) The effect of combustion chamber shape on cylinder flow and lean combustion process in a large bore spark-ignition CNG engine. J Energy Institute 1–8.  https://doi.org/10.1016/j.joei.2015.01.023
  12. 12.
    Zhao J, Ma F, Xiong X, Deng J et al (2013) Effects of compression ratio on the combustion and emission of a hydrogen enriched natural gas engine under different excess air ratio. Energy 59:658–665.  https://doi.org/10.1016/j.energy.2013.07.033CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2021

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringSymbiosis Institute of Technology, Symbiosis International Deemed UniversityPuneIndia
  2. 2.Automotive Research Association of IndiaPuneIndia
  3. 3.Tata MotorsPuneIndia

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