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There are numerous efforts being made to find an alternate fuel to the ones that are being used in modern technologies. The need for an alternative has arisen as a result of the rising price of petroleum products and the escalating demand for energy. In an experimental study, the effects of adding methanol and diethyl ether to mahua biodiesel on the output and emissions of a direct-injection diesel engine were examined [1]. The objective of this study is to evaluate the performance of a mahua seed oil-based biofuel in a single-cylinder diesel engine. The performance and emissions of the CI engine using Mahua biodiesel are examined in this experimental investigation. The fuels made were virgin diesel (100 percent volume), B5 (95 percent volume, 2.5 percent Mahua oil, 1.25 percent diethyl ether, and 1.25 percent methanol), B10 (90 percent volume, 5% Mahua oil, 3% diethyl ether, and 2% methanol), and B15 (85 percent volume, 10% Mahua oil, 3% diethyl ether, and 2% methanol).

Air pollution is one of the biggest issues facing the planet today. One of the major sources of environmental pollution is car emissions. Reduced use of fossil fuel signals the need to switch to other fuels. Every nation in the world is making numerous efforts to reduce the pollution that vehicles are responsible for. Utilizing alternative fuels effectively can reduce air pollution. Decreased fuel consumption results from increased use of biodiesel. For this study, biodiesel made from karanja oil was combined with additives like methanol, diethyl ether, and ethyl hexyl nitrate (EHN). B10, B15, and B20 blends are created in various compositions. For comparison, several fuel attributes for the aforementioned mixes and diesel were discovered. Biodiesel’s viscosity has been significantly lowered to improve mixture preparation and has a higher calorific value than base fuel. The testing for the aforementioned mixes was carried out on a VCR-style CI engine.

Biogas is developing as a possible replacement for fossil fuels as the globe shifts to sustainable energy sources. Organic waste, including food waste, agricultural waste, and sewage, decomposes to produce biogas. Biogas is a fuel that can be used to create electricity, heat homes, and power vehicles. The popularity of electric cars (EVs) is rising as a result of their zero emissions. EVs and biogas can work together to create a sustainable transportation option. The viability of EV charging stations powered by biogas is the main topic of this techno-economic inquiry. The study involves the evaluation of the technical and economic elements of the proposed system. The technical aspects cover power generation, the EV charging system, the biogas storage system, the biogas production process, and the biogas purification process. The capital cost, operating cost, and revenue from the charging station are all considered economic factors.