The present work deals with a numerical investigation on an experimental single cylinder direct injection Diesel engine. Calculations are carried out Kiva3v2 code using multidimensional detailed chemistry. study was predicted CO, and NOx emission levels by the engine before exhaust valve opening. Correlations proposed for NO, function of fuel, O2, N2 concentrations maximum in-cylinder pressure ...

The free-piston engine is a type of none-crank that could be operated under variable compression ratio, and this provides it flexible fuel applicability low emission potential. In work, several 1-D models, including conventional gasoline engines, engines hydrogen have been established. Both performance speeds between 5–11 Hz with different equivalent ratios simulated compared. Results indicated...

Natural gas (NG) engines have very broad application prospects. The pilot-ignited NG diesel engine can be organized into two combustion modes according to the sequence of oil and injection: (1) High-pressure direct injection, where is mainly diffused combustion; (2) partially premixed compression ignition, combustion. In this study, we used CONVERGE explore influence injection timing on distrib...

Natural gas-diesel dual fuel combustion is a beneficial strategy for achieving high efficient and low emissions operation in compression ignition engines, especially in genset application heavy duty diesel engine at rated power. This study aims to investigate a dual fuel engine performance and emissions using premixed natural gas and early direct injection of diesel fuel. Due to the different r...

Recent research in laser-induced ignition (LI) of air-fuel mixtures in internal combustion (IC) engines has shown there to be many potential advantages over conventional electrical spark ignition (SI). Spark plugs offer only limited possibilities for optimising engine efficiency, due to their fixed position within a cylinder and the protrusion of electrodes which disturb the cylinder geometry a...

The auto-ignition of toluene and n-heptane as model fuels for Diesel fuel components have been studied in a highpressure shock tube under engine-relevant conditions. Toluene/air and n-heptane/air mixtures as well as toluene/nheptane/air (10/90% and 40/60% by volume) have been investigated over a wide temperature range (700 – 1200 K), = 1.0 and 0.5 and 40 bar behind reflected shock waves. A kine...

− The paper describes an unusual approach to diagnose standard ignition subsystem of fuel engines. All the information about real state conditions of the ignition coils and sparks is taken from simple measurement of power consumption transient of the electric control systems of engine. The transient is processed by continuous wavelet transformation (CWT). Result of the CWT is used for a classif...