Research Papers: Fuel Combustion

Investigations on Partial Addition of n-Butanol in Sunflower Oil Methyl Ester Powered Diesel Engine

[+] Author and Article Information
Vishal V. Patil

Department of Mechanical Engineering,
K. K. Birla Goa Campus,
BITS Pilani University,
NH 17 (Bypass)—Air Port Road,
Zuarinagar 403 726, Goa, India
e-mail: patilvishal.sit@gmail.com

Ranjit S. Patil

Department of Mechanical Engineering,
K. K. Birla Goa Campus,
BITS Pilani University,
NH 17 (Bypass)—Air Port Road,
Zuarinagar 403 726, Goa, India
e-mail: ranjitp@goa.bits-pilani.ac.in

1Corresponding author.

Contributed by the Internal Combustion Engine Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received May 1, 2017; final manuscript received July 9, 2017; published online August 22, 2017. Assoc. Editor: Stephen A. Ciatti.

J. Energy Resour. Technol 140(1), 012205 (Aug 22, 2017) (10 pages) Paper No: JERT-17-1193; doi: 10.1115/1.4037372 History: Received May 01, 2017; Revised July 09, 2017

Research focused in the present paper to evaluate the combustion, performance, and emission characteristics of refined biodiesel (refined biofuel) such as sunflower oil methyl ester (SOME) with the partial addition of n-butanol (butanol) in it. Various characteristics of butanol–SOME blends with varying volume percentage of butanol such as 5, 10, 15, and 20 in butanol–SOME blends were compared with the characteristics of neat SOME (100%) and neat diesel (100%). It is investigated that with an increase in butanol content from 5% to 20% in butanol–SOME blends at full load condition, brake-specific fuel consumption, and NOx emissions were increased by 11% and 43%, respectively, while brake thermal efficiency (BTE) was decreased by 8%. At full load condition, for all the selected fuels hydrocarbon (HC) emissions were found to be negligible, i.e., less than 0.12 g/kWh. Carbon monoxide (CO) emissions at full load condition for the four butanol–SOME blends were observed to be four to six times more than observed CO emissions in case of neat SOME and neat diesel. Various characteristics of all the selected fuels were compared in order to finalize the promising alternate sustainable renewable fuel. Thus, study reports the solution for increase in demand and price of shortly diminishing conventional diesel fuel which is widely used for power generation and also to reduce the serious issues concerned with environmental pollution due to usage of neat diesel.

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Fig. 2

Mean gas temperature with CA

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Fig. 3

Total heat release with CA

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Fig. 1

Schematic diagram of setup

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Fig. 4

(a) Cylinder pressure with CA for (a) diesel, (b) SOME, (c) butanol 5% + SOME 95%, (d) butanol 10% + SOME 90%, (e) butanol 15% + SOME 85%, and (f) butanol 20% + SOME 80%

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Fig. 5

Variation of nitrogen oxide with load

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Fig. 6

Variation of brake power with load

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Fig. 7

Variation of brake mean effective pressure with load

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Fig. 8

Variation of BTE with load

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Fig. 9

Variation of brake specific fuel consumption with load

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Fig. 11

Variation of carbon dioxide with load

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Fig. 10

Variation of CO with load

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Fig. 12

Variation of exhaust gas temperature with load

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Fig. 13

Variation of HCs with load

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Fig. 14

Variation of volumetric efficiency with load



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