Abstract
A lot of research is being carried out to reduce the environmental pollution resulting from compression ignition engines. For this, various gaseous fuels are being explored as fuel additives in compression ignition engines. The purpose of this research work is to investigate rarely explored Brown’s gas (oxyhydrogen gas) in CI engines to reduce environmental pollution. Brown’s gas was produced by electrolysis of distilled water with potassium hydroxide as a catalyst. A common rail direct injection CI engine was used for the present investigation. Detail combustion, performance, and emission analyses were carried out, which is scarcely reported in oxyhydrogen gas fuel investigations in compression ignition engines. Oxyhydrogen was injected at varying flow rates of 200 ml/min, 400 ml/min, 600 ml/min, and 800 ml/min in the intake manifold of the CI engine equipped with an electronically controlled common rail direct injector. The peak pressure and maximum heat release rate increased with the increasing concentration of oxyhydrogen gas. The comparison was made between conventional diesel combustion and oxyhydrogen gas addition of 800 ml/min at 75% load. The reduction in CO and HC emissions was about 37.5% and 17.94% respectively. CO2 and NOx emissions increased by 9.37% and 7.41% respectively. Very low smoke emission of 0.01 to 0.02% was recorded at 800 ml/min oxyhydrogen gas flow rate. Thus, it can be concluded that oxyhydrogen gas provides promising benefits in terms of better combustion and low emissions. However, it is recommended to carry out further research to incorporate the use of this additive in actual automobile applications.
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Acknowledgements
The authors extend sincere thanks to the Research Centre of Shri Ramdeobaba College of Engineering and Management, Nagpur, for supporting this research work. We are also thankful to the research supervisor for constant support and motivation.
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Nikhil Bhave: conceptualization; data curation; formal analysis; roles/writing—original draft; investigation; methodology; software. Mahendra Gupta: supervision; project administration; resources. Sandeep Joshi: validation; visualization; writing—review and editing
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Bhave, N.A., Gupta, M.M. & Joshi, S.S. Combustion, performance, and emission characteristics of diesel engine using oxyhydrogen gas as a fuel additive. Environ Sci Pollut Res 30, 24842–24855 (2023). https://doi.org/10.1007/s11356-021-17975-5
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DOI: https://doi.org/10.1007/s11356-021-17975-5