Journal of Oil Palm Research Vol. 30 (4) December 2018, p. 674-681

EFFECT OF INJECTION TIMING ON PERFORMANCE AND EMISSION CHARACTERISTICS OF PALM BIODIESEL AND DIESEL BLENDS

PRABHU APPAVU*; JAYAPRABAKAR, J**; BEEMKUMAR, N**and YUVARAJAN DEVARAJAN*

DOI: https://doi.org/10.21894/jopr.2018.0057
Published Online: 7 December 2018
ABSTRACT

Injection timing is a vital factor which governs the emissions and performance characteristics of the engine. This work portrays the effect of injection timing (IT) on cerium oxide nano particle doped palm biodiesel (20%vol) and diesel (80%vol) blends. Palm biodiesel is found to be a promising alternative to the petroleum diesel fuel owing to their similarity in physical and chemical properties. Addition of cerium oxide nano particle is carried out at 30 ppm, 60 ppm and 90 ppm. The modified fuels are introduced in reducing injection timing of 19°, 21° and 23° bTDC. A four-stroke, vertical, air-cooled, single cylinder, diesel engine is employed in this study. The performance characteristics (BSFC, BTE) improved for fuel blends at IT=23° bTDC. Further, results also revealed a significant reduction in emissions CO, NOX, HC emissions at IT=23° bTDC.

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* Malaysian Palm Oil Board, 6 Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.