Seeds from various fruits are not utilized properly and thrown into the ground.
These can be utilized by extracting oil from them for the use of fuel to
compression ignition engines. Also, the vegetables cut waste and fruits waste
are also not utilized and disposed as garbage. These wastes can be converted
into biobutanol and can be used as fuel for compression ignition engines. This
study is to replace diesel fuel by blending biobutanol with castor oil, amla
seed oil, and jamun seed oil without and with modification of engine operating
parameters. The steps of this study are: preparation of various proportions of
biobutanol and castor oil (from 0 to 5% in increments of 1%), amla seed oil
(0–100% in increments of 5%), and jamun seed oil (0–100% in increments of 5%)
and the essential properties are tested. By the comparison of properties of the
blends with diesel fuel, suitable blends are chosen from the prepared blends
(one blend from each seed oil and biobutanol). The chosen blends are 45ASO55BB,
65JSO35BB, and 20BB80D-10CO with respect to properties comparison of diesel
engine fuel. The chosen blends are tested for performance in compression
ignition engine without modification of parameters under various brake power
conditions. Follow-up tests were performed by modifying engine parameters with
three blends containing higher volume of biobutanol and the seed oil for
performance. The test results depicted that the thermal efficiency, pressure of
the cylinder, and net heat release rate of the engine are found competent with
respect to diesel when fueled with the blends. Out of the chosen three fuels,
the blend 20BB80D-10CO was found to be comparatively better, producing similar
maximum power, 1.4% low NOX, 2.6% BTE, and 4.3% high fuel consumption
while compared to diesel. This study reduces 50% of diesel fuel utilization and
significant utilization of waste fruits, vegetable, and seeds that are
unutilized.