Effects of Ethanol Admixtures with Gasoline on Fuel Atomization Characteristics Using High-Pressure Injectors

Abstract

Correct fuel atomization is an important parameter in the process of preparing a combustible mixture. Distortions of the atomization can lead to unfavorable effects in the combustion process. This paper presents an analysis of the fuel atomization characteristics of high-pressure fuel injector tests. Optically tested injectors were previously tested in a 48 h engine test carried out in accordance with the CEC F-113-KC procedure, using alternative fuels with ethanol blends. As a result of engine tests on fuels containing various amounts of ethanol admixture, the injectors became contaminated. The effect of the deposits on the geometric atomization indicators was determined. This paper focuses on analyzing the area of the atomized spray in a constant volume chamber at different parameters, reflecting real operating conditions. We found that the addition of ethanol (20%) increases the observed spray area for all test points. Complementing the quantitative results is a qualitative analysis of fuel atomization for injector tests previously run on varying fuels.

Effects of the fuel blend flow rate on engine combustion performance

“…Also antioxidant and nanoparticles additives flow enhancement pay tribute to performance (Shahabuddin et al, 2013;Shaafi and Velraj, 2015;Feroskhan et al, 2017;Perumal Venkatesan et al, 2021;Daud et al, 2022;Küçükosman et al, 2022). Meanwhile, fuel spray and atomization, fuel injection timing, and pressure variation are current issues of study in the literature, as presented by Kumar and Rehman (2014); Liu J. et al (2015); Rai et al (2021); Sun et al (2021); Küçükosman et al (2022); Pham et al (2022); and Stępień et al (2022). The technique of dualfuel engine mode with little or no adjustment of the engine system was studied by Feroskhan et al (2017); Mahla et al (2017); Ambarita, (2018); Parthasarathy et al (2019); Estrada et al (2022); and Jamrozik et al (2022).…”

Cavitation is the determining mechanism for the atomization of high-viscosity liquid

“…This process changes single-phase flow into multiphase flow. The common atomization methods are pure pressure atomization, 1 , 2 , 3 combined pressure and thermal atomization, 4 , 5 , 6 and piezoelectric ultrasonic atomization. 7 , 8 In the medical field, pure pressure pneumatic atomization and piezoelectric ultrasonic atomization are the typical methods because heating can easily damage the properties of medications.…”