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Availability Analysis of Diesel-Powered CI Engines with Single and Multiple Injection Strategies

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Fluid Mechanics and Fluid Power, Volume 4 (FMFP 2022)

Part of the book series: Lecture Notes in Mechanical Engineering ((LNME))

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Abstract

Injection timing heavily influences the diesel engine performance and emissions. The present study utilizes a various injection strategies such as single injection, 30° BTDC and 50° pilot injection, paired pilot injection, and split injection on the performance and emissions. There are two conditions for a single pilot injection: the first is a 20% pilot injection at 30° BTDC, and the second is a 20% pilot injection at 50° BTDC. A twin injection approach uses a pilot of 5% at 50° BTDC and another 15% at 30° BTDC. Performance metrics like BTE, BSFC, and IMEP are determined at a compression ratio of 18:1 for 1000 RPM. The split injection condition produces a lower NOx, CO, and UHC emission. The pilot operation at 50° produces more CO and NOx emissions. Applying the second law of thermodynamics analysis to the CI engine, exergetic efficiency is assessed for various injection strategies, with split injection exhibiting the most optimal engine performance along with controlled emissions.

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Abbreviations

Ain:

Input availability

Acw:

Availability at cold water

Aefficiency:

Second law efficiency

Aexhaust:

Availability at exhaust

BSFC:

Brake-specific fuel consumption

BTDC:

Before top dead centre

BTE:

Brake thermal efficiency

CI:

Compression ignition

CO:

Carbon monoxide

CRDI:

Common rail direct

ECU:

Electronic control unit

HRR:

Heat release rate

LHV:

Low heating value

NOx:

Nitrogen oxide

RPM:

Revolution per minute

SOI:

Start of injection

TDC:

Top dead centre

TO:

Throttle opening

UHC:

Unburned hydrocarbon

Cpex:

Specific heat of exhaust [J/Kg K]

cpw:

Specific heat of water [J/Kg K]

mex:

Mass flow rate of exhaust [Kg/s]

mf:

Mass flow rate of fuel [Kg/s]

mw:

Mass flow rate of water [Kg/s]

Po:

Ambient pressure [bar]

Pexo:

Exhaust pressure [bar]

To:

Ambient temperature [K]

Texo:

Exhaust temperature [K]

Twi:

Inlet water temperature [K]

Two:

Outlet water temperature [K

References

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Acknowledgements

Authors would like to thank Indian Institute of Technology, Hyderabad and Ministry of Education, India, for their constant support and financial assistance. We also thank Jagadish for his assistance in the IC Engine Laboratory.

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Authors and Affiliations

  1. Department of Mechanical and Aerospace Engineering, IIT Hyderabad, Telengana, 502284, India

    Ketan V. Warghat, Aditya Tiwari, B. Yogesh, G. M. Nayak, B. Saravanan & Pankaj S. Kolhe

Authors
  1. Ketan V. Warghat
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  2. Aditya Tiwari
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  3. B. Yogesh
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  4. G. M. Nayak
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  5. B. Saravanan
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  6. Pankaj S. Kolhe
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Corresponding author

Correspondence to Pankaj S. Kolhe .

Editor information

Editors and Affiliations

  1. Department of Mechanical and Industrial Engineering, IIT Roorkee, Roorkee, Uttarakhand, India

    Krishna Mohan Singh

  2. Department of Mechanical and Industrial Engineering, IIT Roorkee, Roorkee, Uttarakhand, India

    Sushanta Dutta

  3. Department of Mechanical and Industrial Engineering, IIT Roorkee, Roorkee, India

    Sudhakar Subudhi

  4. Department of Mechanical and Industrial Engineering, IIT Roorkee, Roorkee, Uttarakhand, India

    Nikhil Kumar Singh

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Warghat, K.V., Tiwari, A., Yogesh, B., Nayak, G.M., Saravanan, B., Kolhe, P.S. (2024). Availability Analysis of Diesel-Powered CI Engines with Single and Multiple Injection Strategies. In: Singh, K.M., Dutta, S., Subudhi, S., Singh, N.K. (eds) Fluid Mechanics and Fluid Power, Volume 4. FMFP 2022. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-99-7177-0_4

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  • DOI: https://doi.org/10.1007/978-981-99-7177-0_4

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-99-7176-3

  • Online ISBN: 978-981-99-7177-0

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