Assessing the impact of blends of olea europaea oil methyl esters and diesel bio-diesel on CI engine performance and emission characteristics: a comparative study
by Venkata Ramesh Mamilla; Subbarama Kousik Suraparaju
International Journal of Oil, Gas and Coal Technology (IJOGCT), Vol. 34, No. 4, 2023

Abstract: The surging demand for renewable energy has propelled biofuels into the spotlight as a viable substitute for fossil fuels. This study investigates the feasibility and advantages of biofuels in fostering sustainability while addressing environmental concerns. Specifically, it assesses a compression ignition (CI) engine's performance under varying load conditions using blends of olive oil methyl esters (OME) and diesel. Engine performance is evaluated under consistent speed and steady-state conditions, with a focus on brake thermal efficiency (BTE). Results indicate that at full loads, blends B0, B20, B40, and B60 exhibit BTE values of 29.02%, 27.90%, 31.30%, and 30.01% respectively, akin to diesel. Additionally, B20, B40, and B60 show slightly lower CO emissions (approximately 0.23%, 0.21%, and 0.24%) compared to diesel (0.25%), while NO_x emissions are slightly elevated. Overall, among the blends, B20 showcases superior emissions and engine performance. [Received: April 27, 2023; Accepted: August 4, 2023]

Online publication date: Wed, 29-Nov-2023

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