Multi-Dimensional Modeling of Natural Gas Ignition Under Compression Ignition Conditions Using Detailed Chemistry

Effect of Biodiesel Fuel Injection Timing and Venture for Gaseous Fuel Induction on the Performance, Emissions and Combustion Characteristics of Dual Fuel Engine

“…Diesel engine performance was found to be inferior when fueled with gaseous fuels and the same could be improved by advancing the fuel injection timing, increasing compression ratio, and optimizing both nozzle and combustion chamber combinations (Banapurmath et al, 2011;Yaliwal, et al, 2014;Yaliwal et al, 2016). At higher compression ratio and advanced injection timing, the smoke, hydrocarbon emissions were considerably reduced while NOx emissions increased over the range of operating conditions (Fazal et al, 2011;Agarwal and Assanis, 1998). Use of hydrogen in diesel engine operating in dual fuel mode provides increased power output and lowers the smoke, HC, CO emission levels due to their higher flame speed and lower carbon to hydrogen ratio.…”

Theoretical study of the effects of engine parameters on performance and emissions of a pilot ignited natural gas diesel engine☆

“…According to prior studies [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27], alterations in various engine operating parameters, such as pilot fuel quantity, pilot diesel fuel injection timing and air inlet preheating, may be used to improve the engine efficiency and to restrain the increase of CO and HC emitted from a compression ignition engine running under pilot ignited natural gas diesel operating mode.…”

“…Many research studies [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] have reported that, the main drawback of pilot ignited natural gas/diesel engine operation in contrast with conventional diesel operation, is the negative effect on engine efficiency, carbon monoxide (CO) and unburned hydrocarbon (HC) emissions, especially at low and intermediate load operating points. At high load, the improvement of gaseous fuel utilization leads to a relevant improvement of both engine performance and carbon monoxide emissions, but their values continue to be inferior to the respective values observed under normal diesel operation.…”

Single-zone zero-dimensional model study for diesel-fuelled homogeneous charge compression ignition (HCCI) engines using Cantera

“…Various researchers have investigated the HCCI engine both experimentally [45][46][47][48] and numerically [45,[49][50][51]. Many numerical studies used a computational fluid dynamics (CFD) approach to obtain more accurate results of combustion temperature and products [52][53][54][55][56][57][58][59]. A CFD approach uses more computational power and time compared to a single-zone thermodynamics simulation.…”