Bekal, S.Ashok Babu, T.P.A.2026-02-052011Energy Sources, Part A: Recovery, Utilization and Environmental Effects, 2011, 33, 19, pp. 1792-180115567036https://doi.org/10.1080/15567030903419422https://idr.nitk.ac.in/handle/123456789/27341The cycle-by-cycle fluctuations in peak pressure of combustion in a CI engine were studied for lower and higher blends of diesel and ester, and water-in-ester emulsions, at four injection timings and three injection pressures using coefficient of variation. The sunflower ester-diesel blends are found to have lower cycle-by-cycle fluctuations than pongemia ester-diesel blends. The fluctuations are found to be higher than that of diesel for higher blend proportions of ester. The water-in-ester emulsion show higher cycle-by-cycle fluctuations than that of ester-diesel blends. In most cases, the Brake specific energy consumption is also found to be higher where the coefficient of variation has higher values. Copyright © Taylor & Francis Group, LLC.cycle-by-cycle fluctuationester-diesel blendinjection pressurePeak pressurewater-in-ester emulsionCombustionEmulsificationEnergy utilizationEstersWater injectionEsterification