Key fuel properties and engine performances of diesel-ethanol blends, using tetrahydrofuran as surfactant additive

CAR2017 International Congress of Automotive and Transport Engineering - Mobility Engineering and Environment

工业技术;运输工程

Molea, A.^1 ; Visuian, P.^1 ; Barabás, I.^1 ; Suciu, R.C.^2 ; Burnete, N.V.^1

Technical University of Cluj-Napoca, Faculty of Mechanics, Department of Automotive Engineering and Transports, Cluj-Napoca, Romania^1

National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca, Romania^2

关键词: Chemical compositions;    Chemical interactions;    Compression ignition engine;    Emission characteristics;    Physicochemical property;    Semi-quantitative evaluations;    Spray characteristics;    Surfactant additives;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/252/1/012077/pdf
DOI  :  10.1088/1757-899X/252/1/012077

学科分类：工业工程学

来源: IOP

【 摘 要 】

In this paper there were presented researches related to preparation and characterization of physicochemical properties of diesel-ethanol blends stabilized with tetrahydrofuran as surfactant, in order to be used as fuels in compression ignition engines. The main spray characteristics and engine performances of these blends were evaluated by using AVL Fire software. In the first stage of the studies, commercial diesel was mixed with ethanol, in different concentrations (between 2% and 15% v/v), followed by the addition of tetrahydrofuran (THF) until the blends were miscible, i.e. the blends were stabilized. The experiments were done at room temperature (22 °C). The obtained blends were characterized in order to determine the chemical composition and physicochemical properties, i.e. density, kinematic viscosity, surface tension. UV-Vis spectroscopy was utilized in order to determine a semi-quantitative evaluation regarding the chemical composition of the prepared blends and chemical interaction between diesel, ethanol and THF. Based on the determined properties, the fuel spray characteristics, engine performances and emission characteristics were evaluated by simulation using the AVL Fire software. The obtained results regarding physicochemical properties of blends were compared with diesel. Some improvements were observed when operating with the prepared blends compared to diesel with respect to engine performances and emission characteristics. Based on physicochemical evaluation and computer simulation, it was demonstrated that diesel-ethanol-tetrahydrofuran blends can be used as alternative fuel in compression ignition engines.