Effect of EGR on Combustion and Emissions Characteristics of a CI Engine Fuelled with Waste Chicken Fat Biodiesel

Abstract

Ever increasing demand and consequent rise in prices of petroleum products, stringent emission standards, the exponential depletion rate of fossil fuel reserves and escalation in the number of vehicles on the road have forced us to look for alternatives to meet the present and future demands of the energy requirements. Biodiesel production from waste oils and fats are cost effective methods which prevent the environmental pollution by proper disposal techniques. In this study, biodiesel was prepared from the waste effect chicken fat using the two stage esterification process. The present investigation deals with the cold exhaust gas recirculation (EGR) with the flow rates of 10, 20, 30% on a four stroke, single cylinder, direct injection (DI) diesel engine fueled with waste chicken fat biodiesel blends to reduce the NOxemissions of the engine. Experimental results showed higher oxides of nitrogen emissions when fueled with waste chicken fat biodiesel without EGR and found reduced NOxemissions about 25% when operating with B20 fuel blend with 30% EGR. The EGR level was optimized as 20% based on the significant reduction in NOx emissions, minimum possible smoke, CO, HC emissions and comparable brake thermal efficiency.

Hybrid MWCNT and TiO2 Nanoparticle-Suspended Waste Tyre Oil Biodiesel for CI Engines

“…Tey gave a clear impression of the diferent biodiesel production methods and their comparison, which is used to identify our approach concerning our oil consideration for the new investigation related to biodiesel [2]. Biodiesel was produced from some vegetable oils, such as camphor oil [3], neem oil, cashew nut oil [3], cottonseed oil [4,5], castor oil [6], Calophyllum inophyllum [7], canola oil [8], and Jatropha oil [9], as well as from animal fatty oils, such as fsh oil [10], chicken oil [11], pork skin oil [12], mutton fat oil [11], and beef fat oil [13]. In the same way, biodiesel can be derived by reusing or recycling of materials [14], For example, used cooking oil [15,16], waste fshing net oil [17], waste plastics, and waste tyres [13,[18][19][20][21].…”

Production of biodiesel from three indigenous feedstock: Optimization of process parameters and assessment of various fuel properties

“…The reason behind displaying higher cloud points and pour points of biodiesel is the presence of significant amount of saturated fatty compounds which have consequentially higher melting temperature than unsaturated fatty compounds. The application of biodiesel in cold climatic conditions up to 20% blending with diesel fuel is the best solution without engine modifications .…”

Performance of IC Engines Using Chicken Waste as Biofuel, CNT and MnO Nano-Biofuels and Diesel Fuel: A Comparation Study

“…The same as peak pressure performance, CNT nano performed better than other fuels in terms of heat release performance. This variation was influenced by the fuel properties like higher cetane number and lesser viscosity of the base fuel [4], [16], [17]. CNT nanotubes can promote finer fuel atomization during the injection process.…”

“…Compared to biofuel, 40%, 30%, and 25% lesser NOx were produced by B with CNT, B with MnO, and B with CNT+MnO nano fuels respectively. These results were possible happened because of the in-cylinder temperature [6], [17] and the maximum oxidation of the fuel in the combustion [19], [21]. CNT Nano-Biofuel might potentially lower emissions of greenhouse gases and hazardous pollutants such as particulate matter, nitrogen oxides (NOx), and hydrocarbons by promoting greater combustion and fuel efficiency.…”

“…It was also recorded that the CO and HC emissions were reduced [3]. Gurusala et al [17] performed research to evaluate the impact of chicken fat biodiesel on the IC engine with exhaust gas recirculation. In the study, the fat was yielded from the chicken skin that was left untreated [17].…”