Emission and vibration characteristics of Niger seed oil biodiesel fueled diesel engine

The present investigation dwells the experimental investigation for the assessment of emission, vibration, and noise parameters of single-cylinder, DI diesel engine functioning through the blends of conventional diesel and Niger seed oil methyl ester (NSOME) at different engine operating loads namely 25%, 50%, 75%, and 100% at a constant speed. The carbon monoxide (CO), unburnt hydrocarbons (UHC), and smoke opacity emissions have come down significantly for all the blends of NSOME namely B10, B20, and B40 while the NOx increased marginally. Besides, the vibration and noise extremity of the engine was lowered while operating with biodiesel blends as compared to conventional diesel. B20 has specified a significant reduction in emission, vibration, and noise too at all the loads range from minimum to maximum. At maximum load condition the CO, UHC, smoke opacity, root mean square (RMS) velocity, and RMS noise of B20 have reduced by 93.9%, 37.87%, 5.54%, 45.78%, and 26.15% respectively even as the NOx was increased by 12.76% compared to standard.

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Experimental Investigation of the Performance and Emission Characteristics on a 4-Cylinder DI Diesel Engine Fuelled with Different Diesel Blends Under Varying Engine Load Condition

i-manager’s Journal on Mechanical Engineering ◽

10.26634/jme.4.4.2841 ◽

2014 ◽

Vol 4 (4) ◽

pp. 12-17

Author(s):

Amit Aherwar ◽

Keyword(s):

Experimental Investigation ◽

Diesel Engine ◽

Load Condition ◽

Emission Characteristics ◽

Engine Load ◽

Performance And Emission ◽

Di Diesel Engine

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Acetylene an Potential Alternative Fuel for Stationary Diesel Engine

International Journal of Recent Technology and Engineering - 2 ◽

10.35940/ijrte.b1080.078219 ◽

2019 ◽

Vol 8 (2) ◽

pp. 5013-5016

Keyword(s):

Diesel Engine ◽

Alternative Fuels ◽

Internal Combustion Engines ◽

Direct Injection ◽

Load Condition ◽

Maximum Load ◽

Constant Speed ◽

Dual Fuel ◽

Auto Ignition ◽

Di Diesel Engine

The present study focuses on incorporation of alternative fuels along with existing internal combustion engines (ICE) without making major modifications. Acetylene has good combustion qualities with auto ignition temperature of 3050C. To increase the use of acetylene as non-petroleum gas in ICE, we carried experimentation on a single cylinder constant speed diesel engine. In this study, direct injection (DI) and constant speed compression ignition (CI) engine tested with pure diesel and diesel-acetylene dual fuel mode. We conducted experiments to study the performance characteristics of DI diesel engine in dual fuel mode by aspirating acetylene gas in the inlet manifold with a flow rate of 2 liters/minute (lpm) of acetylene. Observation recorded that, during idling condition to get the same power output when aspirated with the 2 lpm acetylene, 3.5% less amount of diesel required. For maximum load 9% less amount of diesel required. And 12% less amount of diesel required during partial loading condition. Also, the performance shows increased trend in indicated power and brake power by 1-2%. It was also observed that use of acetylene gas has more influence on emission of CO2. Emission results showed that without a catalytic convertor, 8% decreased amount of CO2 released during idling condition. Similar emission results of engine found during full load condition when acetylene used along with diesel, supporting the health of environment for reduction of global warming.

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