The waste plastics generation is increasing globally with approximately of 3.5 MMT annual.This includes LDPE, HDPE, PET, PS and PET; If the same trend continuous, this leads to 25000 MMT waste plastics generated by the year 2040 as per literature. Hence all the researchers should focus on various methods of discarding the waste plastics and converting this into a useful form. The biofuel generated from the waste plastic will be available at lesser price than the present day fuel price. This fuel will be satisfying all the global standards and can be operated in the exisisting engines without modification. This review paper mainly focusing on various methods and converting the waste plastics into fuel. It also gives clear knowledge on the overview of PWG, PWD, PWI and PWR. Based on the literature review it is cleared that pyrolysis process is one of the most prominant method of converting the waste plastics into fuel. Based on the experimental work done on the engines has proved that BTE is improved by 2 - 5% and emissions were reduced 1-3.5% compared to other conventional fuel. These results motivates the researchers to convert the waste plastics into fuel which leads to a cleaner environment and an improved economy for the country.

This analysis focused on investigating thermal storage behaviour on phase change material along with Al2O3 as an additive. The experimental investigation was performed by three set temperature points, i.e. 40οC, 50οC and 60οC with the mass circulation rate through the tank of 5 kg/min, 3...

Bharath’s sixth stage emission benchmark norms are stringent as per the global Emission norms, and their implementation is a great concern. The current Bharath stage VI emission norms were implemented on 1 April 2020. The aim of this work is to study the engine performance and emissions when the engine is fuelled by a new and unique bio-diesel. The engine selected for this experimentation is a Kirloskar , single-cylinder, 4-stroke and water-cooled, common rail direct injection (CRDi) diesel engine. The biodiesel was drawn from the Acacia seeds, which are available in plenty most of the places in South India, especially like Andhra Pradesh, Tamil Nadu and Karnataka . The oil was extracted from the dry acacia seeds and sent through a motorised expeller. The oil expelling efficiency is 19%, the available oil content is 220 ml, out of it 190 ml of oil was extracted, whereas with a hand-operated expeller, it was 16%; hence there is an improvement of 3%. The oil has been verified with FFA content and had 1.0%. FFA content single-step transesterification process is selected, which has yielded 97%. Experiments were conducted at 500 bar with a single injection, 500 bar with the main injection 15 degrees b TDC, pilot injection 23 degrees b TDC and 500 bar with B10 a single injection and 200 bar with the main 15 degrees b TDC, pilot injection 23 degrees b TDC. The results were observed when the engine was running with 15 degrees main injection and 23 degrees pilot injection strategy.