Experimental investigation of combustion, performance and emission characteristics of a diesel engine fuelled with diesel–biodiesel–alcohol blends

Abstract

The purpose of this study is to investigate the impacts of diesel-biodiesel-alcohol blends on the combustion, performance and emissions characteristics of a single-cylinder diesel engine. Tests were conducted at different engine speeds of 1750, 2250, 2750 and 3250 rpm and under full load. In this study, different fuels [called as reference diesel (D100), 20 vol% cottonseed methyl ester (D80C20), 10 vol% ethanol (D90E10) and finally the ternary type of their derivations (D70C20E10)], were used. The experimental results showed that the highest reduction values were observed on CO emission by 42%, 30% and 8% for the D90E10, D70C20E10 and D80C20 fuels, respectively. These reductions for HC emission were achieved as 40%, 31% and 23% for the D90E10, D70C20E10 and D80C20, respectively. On the other hand, the reductions of NO x and CO 2 emissions were not sharp and varied between 2-7%. Besides the reductions on the exhaust emissions, biodiesel-ethanol blend presented better results in terms of HRR max and CP max than using biodiesel alone. Additionally, ignition delay of the biodiesel blends was longer than that of D100 fuel owing to their low cetane numbers. Combustion duration was shortened with the increment in engine speed because the turbulence increased in the combustion chamber at high engine speed. This case also improved the homogeneity of test fuels and increased the quality of the combustion process. As a consequence, this paper clearly reported that it is possible to achieve fewer emissions, the highest CP max values with the presence of ethanol in biodiesel fuels rather than using biodiesel alone for diesel engines.

ANN Based Prediction of Engine Performance and Exhaust Emission Responses of a CI Engine Powered By Ternary Blends

“…That is why BTE has the best MBE result of 0.0837. This case is also supporting the R 2 and RMSE values of 0.986 and 0.174 for BTE, respectively. On the other hand, BSFC has the worst RMSE result of 17.968.…”

“…Quality criteria expected from alternative fuels can be listed as sustainability, accessibility, performance and compliance with emission standards. In order to ensure sustainability and to be more environmentally friendly, the evaluation of wastes as fuel (energy from waste) makes energy from waste more attractive in alternative fuels [1][2][3]. Energy can be regained from garbage, wastewater, factory waste, animal manure and many other worthless process products.…”

Microstructural Characterization of Particulate Matter from Gasoline-Fuelled Vehicle Emissions

“…In similar studies in the relevant literature, various studies have been conducted on the impact of vehicle emissions on the environment [25][26][27], health [28,29] and characterization [30][31][32][33][34]. Microstructure analysis of vehicle emissions was performed in our previous studies [19,35,36].…”

Reclaiming Subsidized Land: An Evaluation of Coal Gangue Interlayers

“…Fossil fuels have been the basis of energy production all over the world and 85% of the energy consumption is met by fossil fuels nowadays [1,2]. Coal, as one of the most important fossil fuels, accounts for the majority of electricity generation in many countries [3].…”

“…In China, more than 90% of coal resources come from underground coal mining and these methods can cause surface collapse and ecological and environmental damage [5]. Subsided land in China occupies about 1.35 million ha and is increasing at an annual rate of 70,000 hm 2 [6]. e subsidence area will reach 2.19 million ha by 2030 in China according to the current projections for coal production and anticipated subsidence.…”