Characteristics of CO and NOx emissions from combustion of transmethylated palm kernel oil-based biodiesel blends in a compression ignition engine
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Date
2018-02
Journal Title
Journal ISSN
Volume Title
Publisher
Journal of King Saud University – Engineering Sciences
Abstract
This study assessed hazardous emissions from transesterified Palm Kernel Oil-based (PKO-based)
biodiesel blends in a Compression Ignition Engine (CIE). Automotive Gas Oil (AGO) was blended with
the PKO-methyl esters in the ratios 1:9; 2:8; 3:7; . . .; 9:1. The various blends were thereafter fired in a
CIE. Besides, 100% AGO and 100% PKO-methyl esters were also burnt in the CIE. Results showed that
as the concentration of the PKO biodiesel increased in the blends, carbon monoxide (CO) emissions
reduced. There was about 35% significant reduction in the lethal CO emissions as the concentration of
methyl esters increased in the blends at 99.9% confidence (p 0.001). At 90% confidence, there were
no significant changes in NOx emissions as a result of change in blend ratios (p > 0.01). There exists a
degree of association between NOx and gas temperature in agreement with Zeldovich mechanism.
Description
Staff Publication
Keywords
Palm kernel oil, Biodiesel, Compression ignition engine, Emissions
Citation
Shote, A. S., Betiku, E., & Asere, A. A. (2018). Characteristics of CO and NO x emissions from combustion of transmethylated palm kernel oil-based biodiesel blends in a compression ignition engine. Journal of King Saud University - Engineering Sciences. doi:10.1016/j.jksues.2018.02.005