Research Papers: Fuel Combustion

Effects of Iron Nanoparticles Blended Biodiesel on the Performance and Emission Characteristics of a Diesel Engine

[+] Author and Article Information
S. Debbarma

Department of Mechanical Engineering,
National Institute of Technology,
Silchar 788010, Assam, India
e-mail: sumita.mech09@gmail.com

R. D. Misra

Department of Mechanical Engineering,
National Institute of Technology,
Silchar 788010, Assam, India

Contributed by the Internal Combustion Engine Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received November 24, 2016; final manuscript received February 24, 2017; published online May 16, 2017. Assoc. Editor: Stephen A. Ciatti.

J. Energy Resour. Technol 139(4), 042212 (May 16, 2017) (8 pages) Paper No: JERT-16-1477; doi: 10.1115/1.4036543 History: Received November 24, 2016; Revised February 24, 2017

The technology for use of biodiesels (up to 20%) as alternative fuel in diesel engines has already been established. In this regard, some suitable modification of biodiesel with appropriate additives may help in increasing the biodiesel component in the biodiesel fuel blends. In order to evaluate the effects of iron nanoparticles (INP) blended palm biodiesel (PB) on the performance and emission characteristics of diesel engine, an experimental investigation is carried out in a single cylinder diesel engine. Methodically, biodiesel prepared from palm oil and commercially available nanosized INP is used in this study. Iron nanoparticles are suspended in the biodiesel in proportions of 40 ppm to 120 ppm using an ultrasonicator. The intact study is conducted in the diesel engine using the four fuel samples, namely diesel, PB20, INP50PB30, and INP75PB30, consecutively. The addition of nano-additive has resulted in higher brake thermal efficiency (BTE) by 3% and break-specific energy consumption (BSEC) by 3.3%, compared to diesel fuel. The emission levels of carbon monoxide (∼56%) and NOx (∼4%) are appreciably reduced with the addition of INP. Increase of INP in the blend from 50 ppm to 75 ppm, BTE and BSEC tend to reduce, but CO and NOx emissions are reduced.

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Fig. 1

Biodiesel production block diagram

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Fig. 2

Experimental setup: (a) engine setup and (b) ultrasonicator

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Fig. 3

(a) Variation of BTE with load and (b) deviation of BTE with respect to diesel

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Fig. 4

Variation of BSEC with load

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Fig. 5

Variation of EGT with load

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Fig. 6

Variation of in-cylinder peak pressure: (a) with crank angle and (b) with load

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Fig. 7

Variation of heat release rate with crank angle

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Fig. 8

Variation of HC with load

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Fig. 9

Variation of CO with load

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Fig. 10

(a) Variation of NOx with load and (b) deviation of NOx with respect to diesel




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