Joel Dmello’s research while affiliated with St. Joseph Engineering College and other places

Renewable fuel such as Biodiesel has become more interesting fuel due to rising expenses of standard fossil fuels, to meet growing energy demand and an alternative to reducing oil reserves. In the compression ignition engine, biodiesel proves to be an alternative feasible option for gasoline, biodiesel burns like crude oil fuel and has controlled pollutants. The larger cost of bio-diesel production can be decreased by using waste products as a feed inventory and waste oils also present a very severe threat to the atmosphere due to their worldwide disposal issues. The waste oil receives renewed interest now and research shows that Dairy Waste Scum Oil based biodiesel produced by 2step transesterification as a suitable option because of its free fatty acid. The present work includes testing the performance and emission characteristics on Diesel, B10, and B20 Milk Scum Biodiesel Blends in a CI engine with varying injection timings. The tests reveal that the B20 blend is found to be best as it has improved BTE and BSFC in comparison with B10 and diesel. Also, emissions for B20 gave the satisfactory results. Results found show an increase in BTE from 29.46% to 31.34%, whereas BSFC remains the same at 0.27kg/kW-hr at full load when injection is advanced 5 deg before TDC. Also, it is observed at maximum load HC reduced from 19 ppm to 14 ppm, reduction in NOx from 518 ppm to 322 ppm and drastic reduction of smoke from 58.7 HSU to 42.9 HSUwhen injection timing is advanced.

Vateria Indica is a multipurpose tree that is much used locally in India. It provides food, medicine and a range of other commodities. It is often planted along avenues in India. The use of vegetable oil as feedstock for biodiesel production is divisive as an outcome of the challenges of a food-fuel catastrophe linked with the use of fit to be eaten oils for biodiesel making. The present study is focused on the extraction of oil from vateria Indica seed using a solvent extraction method, evaluation of optimal conditions for oil extraction. A Box-Behnken design of response surface methodology (RSM) with 15 experimental runs is used to study the optimum environment for the withdrawal, and the variables of interest are effective solvent/seed ratio 1 ml/gm, 1.25 ml/gm and 1.5 ml/gm. extraction temperature 60°C, 65°C, 70°C, and extraction time 3 hr, 4 hr, 5 hr. From the current study it is observed that the optimized oil yield using the solvent extraction is found to be 22.85% at temperature of 66.6°C, extraction time of 4.41 hour keeping the solvent to seed ratio of 1.353 ml/g after adopting response optimization technique.

Vateria Indica is a multipurpose tree that is much used locally in India. It provides food, medicine and a range of other commodities. It is often planted along avenues in India. The use of vegetable oil as feedstock for biodiesel production is divisive as an outcome of the challenges of a food-fuel catastrophe linked with the use of fit to be eaten oils for biodiesel making. The present study is focused on the extraction of oil from vateria Indica seed using a solvent extraction method, evaluation of optimal conditions for oil extraction. A Box-Behnken design of response surface methodology (RSM) with 15 experimental runs is used to study the optimum environment for the withdrawal, and the variables of interest are effective solvent/seed ratio 1 ml/gm, 1.25 ml/gm and 1.5 ml/gm. extraction temperature 60°C, 65°C, 70°C, and extraction time 3 hr, 4 hr, 5 hr. From the current study it is observed that the optimized oil yield using the solvent extraction is found to be 22.85% at temperature of 66.6°C, extraction time of 4.41 hour keeping the solvent to seed ratio of 1.353 ml/g after adopting response optimization technique.