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Murali Krishna, M. V. S., Seshagiri Rao, V. V. R., Murthy, P. V. K., Reddy, T. K. K.. (1390). Performance evaluation of a low heat rejection diesel engine with carbureted ethanol and jatropha oil. فناوری آموزش, 1(2), 99-110. doi: 10.22061/jcarme.2012.29
M. V. S. Murali Krishna; V. V. R. Seshagiri Rao; P. V. K. Murthy; T. K. K. Reddy. "Performance evaluation of a low heat rejection diesel engine with carbureted ethanol and jatropha oil". فناوری آموزش, 1, 2, 1390, 99-110. doi: 10.22061/jcarme.2012.29
Murali Krishna, M. V. S., Seshagiri Rao, V. V. R., Murthy, P. V. K., Reddy, T. K. K.. (1390). 'Performance evaluation of a low heat rejection diesel engine with carbureted ethanol and jatropha oil', فناوری آموزش, 1(2), pp. 99-110. doi: 10.22061/jcarme.2012.29
Murali Krishna, M. V. S., Seshagiri Rao, V. V. R., Murthy, P. V. K., Reddy, T. K. K.. Performance evaluation of a low heat rejection diesel engine with carbureted ethanol and jatropha oil. فناوری آموزش, 1390; 1(2): 99-110. doi: 10.22061/jcarme.2012.29

Performance evaluation of a low heat rejection diesel engine with carbureted ethanol and jatropha oil

Journal of Computational & Applied Research in Mechanical Engineering (JCARME)
مقاله 4، دوره 1، شماره 2، شهریور 2012، صفحه 99-110    اصل مقاله (1.28 M)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22061/jcarme.2012.29
نویسندگان
M. V. S. Murali Krishna* 1؛ V. V. R. Seshagiri Rao1؛ P. V. K. Murthy2؛ T. K. K. Reddy3
1Department of Mechanical Engineering, Chaitanya Bharathi Institute of Technology, Gandipet, Hyderabad-500 075. India
2Vivekananda Institute of Science and Information Technology, Shadnaga, Mahabubnagar-509216, India
3Department of Mechanical Engineering, J.N.T.U. College of Engineering, Kukatpally, Hyderabad- 500 085, India
تاریخ دریافت: 09 شهریور 1390،  تاریخ بازنگری: 06 دی 1390،  تاریخ پذیرش: 11 بهمن 1390 
چکیده
Experiments were conducted to evaluate the performance of a low heat rejection (LHR) diesel engine. Performance parameters and emission levels were determined at various magnitudes of brake mean effective pressure. Combustion characteristics of the engine were measured with TDC (top dead centre) encoder, pressure transducer, console and special pressure-crank angle software package at peak load operation of the engine. Conventional engine (CE) and LHR engine showed improved performance at recommended injection timing of 27obTDC and recommended injection pressure of 190 bar, when compared with CE with pure diesel operation. Peak brake thermal efficiency increased by 18%, smoke levels decreased by 48% and NOx levels decreased by 38% with LHR engine relatively at its optimum injection timing and maximum induction of ethanol when compared with pure diesel operation of CE at manufacturer’s recommended injection timing. 
کلیدواژه‌ها
Crude jatropha oil؛ Ethanol؛ LHR engine؛ performance؛ Pollution levels؛ Combustion characteristics
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