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Investigating the role of fuel injection pressure and piston bowl geometries to enhance performance and emission characteristics of hydrogen-enriched diesel/1-pentanol fueled in CRDI diesel engine

  • Advancements in Clean Energy for Sustainable Development
  • Published:
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Abstract

This paper deals with the effects of piston bowl geometry (hemispherical bowl, troded bowl, and re-entrant bowl) and fuel injection pressure (200 bar, 220 bar, and 240 bar) with hydrogen-diesel/1-pentanol (B20 (80% diesel and 20% pentanol) + 12 lpm of hydrogen) on the emission, combustion, and performance characteristics of a common rail direct injection diesel engine. Re-entrant bowl outperforms hemispherical and troded bowl in terms of brake thermal efficiency (5.67%) and hydrocarbon (8% reduction) with an increase in the fuel injection pressure (240 bar) at part and full load. However, with the increase in the fuel injection pressure in the re-entrant bowl, a slight reduction in nitrogen oxide emissions (2%) is observed. With an increase in injection pressure in the case of re-entrant bowls, NHRR (net heat release rate), peak pressure (in-cylinder), and ROPR (rate of pressure rises) all rise significantly by 3.4%, 4.2%, and 2.3%. It is found that changing the piston shape and fuel injection pressure simultaneously is a potential alternative for improving engine performance and lowering emissions.

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Data availability

The data acquired or analyzed during this investigation are incorporated in this article.

Abbreviations

CI:

Compression ignition

CRDI:

Common rail direct injection

HSB:

Hemispherical bowl

REB:

Re-entrant bowl

TRB:

Troded bowl

ECU:

Electronic control unit

FIP:

Fuel injection pressure

FIT:

Fuel injection timing

HC:

Hydrocarbon

CO:

Carbon monoxide

NOx :

Nitrogen oxide

HRR:

Heat release rate

BTE:

Brake thermal efficiency

BSFC:

Brake-specific fuel consumption

CD:

Combustion duration

EGT:

Exhaust gas temperature

ROPR:

Rate of pressure rise

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Authors and Affiliations

  1. Department of Mechanical Engineering, National Institute of Technology, Andhra Pradesh, India

    Navyasree Seelam, Santhosh Kumar Gugulothu & Gadepalli Ravikiran Sastry

  2. Department of Mechanical Engineering, GITAM University, Hyderabad, India

    Burra Bhasker & SivaSurya Mulugundum

Authors
  1. Navyasree Seelam
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  2. Santhosh Kumar Gugulothu
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  3. Burra Bhasker
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  4. SivaSurya Mulugundum
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  5. Gadepalli Ravikiran Sastry
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Contributions

Santhosh Kumar Gugulothu: conceptualization, procedure, writing, review and editing, supervision; Navyasree Seelam: experimental analysis, procedure and writing; Gadepalli Ravikiran Sastry: supervision; Bhasker Burra: analysis exploration and documentation; Sivasurya Mulugundum: formal analysis.

Corresponding author

Correspondence to Santhosh Kumar Gugulothu.

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Seelam, N., Gugulothu, S., Bhasker, B. et al. Investigating the role of fuel injection pressure and piston bowl geometries to enhance performance and emission characteristics of hydrogen-enriched diesel/1-pentanol fueled in CRDI diesel engine. Environ Sci Pollut Res 30, 72059–72073 (2023). https://doi.org/10.1007/s11356-021-18076-z

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