Journal
INTERNATIONAL JOURNAL OF GREEN ENERGY
Volume 17, Issue 12, Pages 793-804Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15435075.2020.1798770
Keywords
Jatropha biodiesel; n-Butanol as Co-solvent; ethanol; phase stability evaluation; combustion and emission characteristics
Funding
- National Natural Science Foundation of China [51876083, 51776088]
- Priority Academic Program Development of Jiangsu High Education Institutions [SS2018002]
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The main challenge of utilizing ethanol in diesel engines in blending mode is the phase separation issue. Therefore, an attempt has been performed to enhance the stability feature of ethanol/Jatropha biodiesel (JME) blends by using n-butanol as co-solvent. The 10% by volume of n-butanol is added to the mixtures of 10% and 20% ethanol and 70% and 80% JME, which is denoted as JME10Bu10E and JME10Bu20E, respectively. The phase stability of the evaluated fuels is examined employing visual approach and Thermogravimetric analysis. These methods confirm that there is no phase separation for more than 2 months under ambient conditions. Then, the combustion and emission features are investigated utilizing a diesel engine run with different loads and constant speed. The findings demonstrate that the p(max.)and HRR are increased by adding ethanol. The ignition delay is extended with the addition of ethanol while the combustion period is almost the same. The bsfc is decreased by adding ethanol compared to JME fuel. The CO, UHC, and NO(x)formations are reduced markedly by 40%, 40%, and 40%, respectively, with adding ethanol. Finally, using n-butanol and JME as co-solvents with ethanol supports the growth of renewable energy in the CI engine.
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