reaction kineticsIt deals with low temperature combustion of diesel soots at the presence of water vapor in this paper. Numerical calculation and mathematical imitation were carried out upon experimental results. Kinetics, like pre-exponential factor(k_0) and apparent activation energy(E) were ...
Heterogeneous reaction of the mentioned gases with a commercial carbon, Printex U, used as reference, was also analyzed. The initial and the steady-state uptake coefficients, 纬 0 and 纬 ss , respectively, were measured indicating that GTL soot reacts faster than diesel soot and Printex U ...
Seven diesel-ethanol-PME blends (10 vol% to 40 vol%) PME were mixed in ethanol together with 50 vol% diesel fuel operated at 1600 RPM. High PME percentage increased the heat release rate (HRR). However, due to non-uniform chemical energy release from the reaction, the blends of 25 vol...
The chemical reaction of diesel and natural gas before combustion start at the same time, however, the combustion duration of natural gas lags behind that of diesel. In addition, during the combustion overlap period, the in-cylinder combustion is good and the working ability is strong. To ...
It facilitates an alcohol-specific HO2 elimination reaction for the α-hydroxycyclopentyl radical, which decreases the fuel reactivity at low temperatures strongly (Cai et al., 2019a). Chen et al. (2021b) have conducted the experiment of diesel cyclopentanol blend fuels on an optical compression...
The work presented in this article investigates the three distinct phases of low temperature diesel combustion (LTC). Diesel LTC followed a cool flame–negative temperature coefficient (NTC)–high temperature thermal reaction (main combustion) process. The in-cylinder parameters, such as the charge te...
In this study, stratification condition of EGR exhaust gases was used to reduce the pressure rising during the combustion process in HCCI engine. Also, combustion characteristics and emissions characteristics were investigated using the detailed diesel surrogate reaction mechanism. 展开 ...
The combustion process of tetradecane in a direct injection diesel engine has been studied by means of fast sampling and chemical analysis of the combustion products collected inside the diesel chamber during the early stages of the combustion cycle. Soot and acetylene were the major pyrolytic product...
It limits the reactivity controlled compression ignition use at very low loads and presents an additional challenge for the diesel oxidation catalyst. The low exhaust temperature and high carbon monoxide and hydrocarbon concentration can penalise the catalyst conversion efficiency. The objective of this ...
One kilogram of this preheated waste vegetable oil was poured into the sodium methoxide solution. After this, the mixture was kept on a hot plate with a magnetic stirrer at 55 ◦C for about 70 min to complete the transesterification reaction. Then, the flask cover was removed and heating ...