Abstract
The correlation between oxides of nitrogen emission and in-cylinder temperature of diesel engine fueled with various alternative fuels has been investigated in this research paper. Experimentations were performed in engine without any modifications using pure high-speed diesel fuel, used cooking oil biodiesel (UCO20), animal fat residue biodiesel (AFR20) and camphor oil (CMR20) at 20% volume concentration of biodiesel each. From combustion analysis, the heat release rate and peak cylinder pressure of biodiesel blends were about 13.487% lower and 4.819% higher than those of diesel fuel on an average, respectively. Longer combustion duration has been observed for all biodiesel blends at all load conditions. Oxides of nitrogen emission level show 16.405, 10.352 and 7.524% increment for UCO20, AFR20 and CMR20, respectively. Noteworthy NO x reduction of about 43.8% was recorded for diesel blended with camphor oil when compared to other biodiesel blends. The relationship between in-cylinder temperature and NO x emission concentration was premeditated through thermal imager. The result depicted that the increase in NO x concentration depends on augmented in-cylinder temperature for all test fuels.
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Abbreviations
- NO x
-
Oxides of nitrogen
- TI
-
Thermal imager
- AFR
-
Animal fat residue biodiesel
- UCO
-
Used cooking oil biodiesel
- CMR
-
Camphor oil
- HSD
-
Pure high-speed diesel
- AFR100
-
100% animal fat residue biodiesel
- AFR20
-
20% AFR + 80% diesel
- UCO100
-
100% used cooking oil biodiesel
- UCO20
-
20% UCO + 80% diesel
- CMR100
-
100% camphor oil
- CMR20
-
20% CMR + 80% diesel
- CAD
-
Crank angle degree
- BTDC
-
Before top dead center
- PCP
-
Peak cylinder pressure
- HRR
-
Heat release rate
- ID
-
Ignition delay
- IR
-
Infrared
- CHT
-
Cylinder head temperature
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Mohamed Shameer, P., Ramesh, K. Study on clean technology-assisted combustion behavior and NO x emission using thermal imager for alternate fuel blends. Int. J. Environ. Sci. Technol. 14, 2759–2768 (2017). https://doi.org/10.1007/s13762-017-1353-8
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DOI: https://doi.org/10.1007/s13762-017-1353-8