The objective of this work is to compare the quality of various diesel fuels using a normal engine and carrying out the test under the actual operating conditions of the engine, unlike the conventional test methods that uses standard test conditions. The standard test conditions involve the running of the diesel engine test rig at a speed of around 800 rpm, which is not the condition when the fuel is actually being used, as the operational speed of commercial engines is around 1500–2000 rpm. Also the non-engine based quality rating methods are not economically liable and are inaccurate as they depend too much on the chemical nature of the fuel. So, the objective of this work is to develop a generalized quality rating procedure with less number of parameters, with a simpler and cheaper method compared to other available methods. A single cylinder diesel engine was used to study the ignition quality of various reference fuels of known Cetane numbers. A relatively simple and compact setup was used, by modifying the existing test rig. The inlet manifold was incorporated with an airflow control valve so that the quantity of air let into the cylinder can be varied. The exhaust gas manifold was modified to enable easier observation of the exhaust gas. The single cylinder diesel engine was made to run at two distinct conditions, namely, the normal and white-puff / critical condition, with the reference fuels of known cetane numbers. The quantity of air available for the fuel to combust is the only difference between the two conditions. The air-fuel ratio of each fuel under both the conditions was continuously monitored. A correlation was developed between the critical air-fuel ratios and the corresponding Cetane numbers. From this correlation, a test fuel can be rated easily by finding the air-fuel ratio, by running it in the same engine at an identical load, at an instant when the “white puff” is observed.
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ASME 2005 Internal Combustion Engine Division Fall Technical Conference
September 11–14, 2005
Ottawa, Ontario, Canada
Conference Sponsors:
- Internal Combustion Engine Division
ISBN:
0-7918-4736-5
PROCEEDINGS PAPER
Simplified Method for Fuel Quality Prediction Available to Purchase
Aravind Sivaraman,
Aravind Sivaraman
Sri Venkateswara College of Engineering, Sriperumbudur, India
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Sridhar Ranganathan,
Sridhar Ranganathan
Sri Venkateswara College of Engineering, Sriperumbudur, India
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Shashank Tangirala,
Shashank Tangirala
Sri Venkateswara College of Engineering, Sriperumbudur, India
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G. Lakshmi Narayana Rao
G. Lakshmi Narayana Rao
Sri Venkateswara College of Engineering, Sriperumbudur, India
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Aravind Sivaraman
Sri Venkateswara College of Engineering, Sriperumbudur, India
Sridhar Ranganathan
Sri Venkateswara College of Engineering, Sriperumbudur, India
Shashank Tangirala
Sri Venkateswara College of Engineering, Sriperumbudur, India
G. Lakshmi Narayana Rao
Sri Venkateswara College of Engineering, Sriperumbudur, India
Paper No:
ICEF2005-1281, pp. 335-342; 8 pages
Published Online:
November 11, 2008
Citation
Sivaraman, A, Ranganathan, S, Tangirala, S, & Rao, GLN. "Simplified Method for Fuel Quality Prediction." Proceedings of the ASME 2005 Internal Combustion Engine Division Fall Technical Conference. ASME 2005 Internal Combustion Engine Division Fall Technical Conference (ICEF2005). Ottawa, Ontario, Canada. September 11–14, 2005. pp. 335-342. ASME. https://doi.org/10.1115/ICEF2005-1281
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