Research Papers: Fuel Combustion

Engine Characteristic Studies by Application of Antioxidants and Nanoparticles as Additives in Biodiesel Diesel Blends

[+] Author and Article Information
A. Prabu

Department of Automobile Engineering,
SRM Institute of Science and Technology,
Kattankulathur 603203, India
e-mail: prabu1603@gmail.com

1Corresponding author.

Contributed by the Internal Combustion Engine Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received May 5, 2017; final manuscript received December 30, 2017; published online April 9, 2018. Assoc. Editor: Stephen A. Ciatti.

J. Energy Resour. Technol 140(8), 082203 (Apr 09, 2018) (7 pages) Paper No: JERT-17-1204; doi: 10.1115/1.4039736 History: Received May 05, 2017; Revised December 30, 2017

This study evaluates the outcomes of antioxidants and nanoparticles as additives with biodiesel diesel blends on the engine working characteristics, carried on a single cylinder direct injection (DI) diesel engine, operated at invariable engine speed of 1500 rpm, invariable injection timing of 26 deg before top dead center with invariable injection pressure of 216 bar, under five different engine load conditions (0.08, 0.15, 0.23, 0.30, 0.45, and 0.53 MPa). The antioxidants and nanoparticles blended test fuels are used as fuels in this experimental investigation. The antioxidant as additive in fuel found to be more effective in suppressing the NO emission by disrupting the chain propagating reactions, trapping free radicals, and decomposing peroxides. The high surface area to volume of the nanoparticles acts as fuel borne catalyst by ameliorating the engine working characteristics and downplays the NO emission by buffering the oxygen molecule. The obtained experimental results indicates that B20SNAlCe test fuel enhances engine brake thermal efficiency (BTE) by 13% and reduces level of pollutants such as unburned hydrocarbon (UBHC) by 38%, nitric oxide by 32%, smoke opacity by 21%, and carbon monoxide by 60% in compared with B100.

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Fig. 1

Schematic view of experimental assembly

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Fig. 2

Comparison of BSEC beneath bmep

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Fig. 3

Comparison of BTE beneath bmep

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Fig. 4

Comparison of NO beneath bmep

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Fig. 5

Comparison of EGT beneath bmep

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Fig. 6

Illustration of antioxidant and nanoparticles dispersed test fuel

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Fig. 7

Comparison of UBHC beneath bmep

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Fig. 8

Comparison of CO beneath bmep

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Fig. 9

Comparison of Smoke emission beneath bmep

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Fig. 10

Comparison of cylinder pressure and heat release rate beneath crank angle at full load

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Fig. 11

Comparison of ignition delay beneath bmep



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