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Design and experimental investigations on six-stroke SI engine using acetylene with water injection

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Abstract

In the present study, a four-stroke cycle gasoline engine is redesigned and converted into a six-stroke cycle engine and experimental study has been conducted using gasoline and acetylene as fuel with water injection at the end of the recompression stroke. Acetylene has been used as an alternative fuel along with gasoline and performance of the six-stroke spark ignition (SI) engine with these two fuels has been studied separately and compared. Brake power and thermal efficiency are found to be 5.18 and 1.55% higher with acetylene as compared to gasoline in the six-stroke engine. However, thermal efficiency is found to be 45% higher with acetylene in the six-stroke engine as compared to four-stroke SI engine. The CO and HC emissions were found to be reduced by 13.33 and 0.67% respectively with acetylene as compared to gasoline due to better combustion of acetylene. The NOx emission was reduced by 5.65% with acetylene due to lower peak temperature by water injection. The experimental results showed better engine performance and emissions with acetylene as fuel in the six-stroke engine.

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Abbreviations

SI:

Spark ignition

CO:

Carbon monoxide

HC:

Hydrocarbon

NOx :

Nitrogen oxides

CO2 :

Carbon dioxide

LPG:

Liquefied petroleum gas

CA:

Crank angle

TDC:

Top dead center

NDIR:

Non-dispersive infrared radiation

MEP:

Mean effective pressure

FC:

Fuel consumption

BP:

Brake power

BTE:

Brake thermal efficiency

W net :

Net work (watt)

V disp :

Displacement volume (m3)

N :

Speed (RPM)

n s :

Number of crank revolution

P :

Power (Watt)

T :

Torque (N-m)

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Acknowledgments

The accomplishment of this project was indeed very challenging and we overcame it with the help of department of Mechanical Engineering at Arya Group of Colleges, Kukas, Jaipur, Rajasthan. We would like to thank Dr. Swati Saxena, HOD Chemistry, Rajasthan College of Engineering for Women, Bhakrota, Jaipur, Rajasthan, for helping us in the completion of this project.

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Authors and Affiliations

  1. Arya Institute of Engineering & Technology, Jaipur, Rajasthan, India

    Keshav Gupta

  2. Arya College of Engineering & I.T, Jaipur, Rajasthan, India

    Kishanlal Suthar

  3. MNIT, Jaipur, Rajasthan, India

    Sheetal Kumar Jain & Ghanshyam Das Agarwal

  4. SKIT, Jaipur, Rajasthan, India

    Ashish Nayyar

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  1. Keshav Gupta
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  2. Kishanlal Suthar
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  3. Sheetal Kumar Jain
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  4. Ghanshyam Das Agarwal
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  5. Ashish Nayyar
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Correspondence to Keshav Gupta.

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Responsible editor: Philippe Garrigues

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Gupta, K., Suthar, K., Jain, S.K. et al. Design and experimental investigations on six-stroke SI engine using acetylene with water injection. Environ Sci Pollut Res 25, 23033–23044 (2018). https://doi.org/10.1007/s11356-018-2407-2

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  • DOI: https://doi.org/10.1007/s11356-018-2407-2

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