Thermal Science 2010 Volume 14, Issue 4, Pages: 923-935
https://doi.org/10.2298/TSCI1004923P
Full text ( 3069 KB)
Cited by
Performance, emission, and combustion characteristics of a CI engine using liquid petroleum gas and neem oil in dual fuel mode
Palanimuthu Vijayabalan (Deparment of Mechanical Engineering, Hindustan College of Engineering, Chennai, India)
Nagarajan Govindan (b Department of Mechanical Engineering, Anna University, Chennai, India)
Increased environmental awareness and depletion of resources are driving the
industries to develop viable alternative fuels like vegetable oils, compressed
natural gas, liquid petroleum gas, producer gas, and biogas in order to
provide suitable substitute to diesel for compression ignition engine. In
this investigation, a single cylinder, vertical, air-cooled diesel engine was
modified to use liquid petroleum gas in dual fuel mode. The liquefied
petroleum gas, was mixed with air and supplied through intake manifold. The
liquid fuel neem oil or diesel was injected into the combustion chamber. The
performance, emission, and combustion characteristics were studied and
compared for neat fuel and dual fuel mode. The experimental results on dual
fuel engine show a reduction in oxides of nitrogen up to 70% of the rated
power and smoke in the entire power range. However the brake thermal
efficiency was found decreased in low power range due to lower calorific
value of liquid petroleum gas, and increase in higher power range due to the
complete burning of liquid petroleum gas. Hydrocarbon and carbon monoxide
emissions were increased significantly at lower power range and marginal
variation in higher power range.
Keywords: liquid petroleum gas, neem oil, diesel, dual fuel, combustion, performance, emission