Optimization of Biodiesel Production from Non Edible Oil Seeds Characterization and Performance Analysis on CI Engine

Abstract

iii newlineABSTRACT newlineKeywords: Transesterification, Annona Squamosa (A. Squamosa) oil, Terminalia Bellirica (T. Bellirica) oil, Michelia Champaca (M. Champaca) oil, A. Squamosa biodiesel, T. Bellirica biodiesel, M. Champaca biodiesel, Central composite design (CCD), KOH, Performance, Combustion emission. In the present research, low-priced non-edible oils like A. Squamosa oil, T. Bellirica oil and M. Champaca oil were used for the production of biodiesel. newlineIn the primary phase of the task, the central composite rotatable design was used to optimize the transesterification process parameters to get maximum biodiesel yield using calcium oxide catalyst. General quadratic model was used to obtain a model of second order to predict biodiesel yield (%) as functions of molar ratio of oil to methanol, catalyst (Potassium Hydroxide) concentration, reaction time, temperature and keeping agitation speed constant for all experiments. 2-D counter plots and 3-D surface plots were developed to help predict the maximum yield of biodiesel. newlineIn the secondary phase, the peculiar properties of A. Squamosa, T. Bellirica and M. Champaca oils and their methyl esters (biodiesel) have been studied. The properties of biodiesel combinations are found to be similar to diesel fuel. newlineIn the tertiary phase, engine tests were conducted for two fuel injection pressures (200bar and 220bar) using methyl esters and their combinations with diesel at different percentage. It was found that brake specific fuel consumption (BSFC) decreases with the increase in load for all compositions. For all fuels, increasing percentage of methyl ester in the combinations increases the BFSC. It was also found that increasing loads increased brake thermal efficiency for all combinations. For all test fuels, an increase in the biodiesel content decreased the brake thermal efficiency for all combinations. It can be observed that with the increase in IP, there is increase in the break thermal efficiency for all test fuels and biodiesel-diesel blends. newlineIn the next part,