Experimental Study of DI Diesel Engine Operational and Environmental Behavior Using Blends of City Diesel with Glycol Ethers and RME

Abstract

An experimental investigation is performed in a single-cylinder direct-injection (DI) diesel engine using city diesel oil called DI1 and two blends of DI1 with a mixture of glycol ethers. The addition of glycol ethers to fuel DI1 produced oxygenated fuels GLY10 (10.2 mass-% glycol ethers) and GLY30 (31.3 mass-% glycol ethers) with 3% and 9% oxygen content, respectively. The addition of biofuel rapeseed methyl ester (RME) to fuel DI1 produced oxygenated blend RME30 (31.2 mass-% RME) with 3% oxygen content. Engine tests were performed with the four fuels in the DI diesel engine at 2500 RPM and at 20%, 40%, 60%, and 80% of full load. The experimental diesel engine was equipped with devices for recording cylinder pressure, injection pressure, and top dead center (TDC) position and also it was equipped with exhaust gas analyzers for measuring soot, NO, CO, and HC emissions. A MATLAB 2014 code was developed for analyzing recorded cylinder pressure, injection pressure, and TDC position data for all obtained engine cycles and for calculating the main engine performance parameters. The assessment of the experimental results showed that glycol ethers have more beneficial impact on soot and NO emissions compared to RME, whereas RME have less detrimental impact on engine performance parameters compared to glycol ethers.

Application of Artificial Neural Networks for Yield Modeling of Winter Rapeseed Based on Combined Quantitative and Qualitative Data

“…It is also used for the production of biodiesel, in the form of rapeseed methyl esters (RME) and is also an essential industrial raw material. These main applications of rapeseed are associated with a high content of protein, carbohydrates, and triacylglycerol (TAG) [1][2][3][4]. In view of the above, the cultivated land used for rapeseed must compete between food, industrial, and energy purposes [5,6].…”

Proposal of a Predictive Mixed Experimental- Numerical Approach for Assessing the Performance of Farm Tractor Engines Fuelled with Diesel- Biodiesel-Bioethanol Blends

“…Controlling NO x emissions is crucial Energies 2019, 12, 2287 4 of 45 in order to meet the EURO and TIER emission standards. Improvements in terms of NO x emissions can be obtained by varying the biodiesel substitution rate in diesel-biodiesel blends [26], as well as introducing small percentages of a third alcohol-based fuel (ethanol, methanol or fusel-oil [27]) to produce ternary diesel-blends. The use of these ternary blends in diesel engines increases the brake specific fuel consumption (BSFC) but it also decreases PM concentrations in the exhaust gases, which is the greatest concern of traditional diesel engines [28].…”