Experimental and Computational Analysis of Diesel-Natural Gas RCCI Combustion in Heavy-Duty Engines

Effects of diesel injection strategy on natural gas/diesel reactivity controlled compression ignition combustion

“…It was demonstrated that RCCI combustion could be achieved at low loads, which enabled even higher CNG substitution and lower emissions. They further numerically evaluated the impact of various control variables, such as boost pressure, EGR (exhaust gas recirculation), injection strategy and rail pressure, on achieving RCCI combustion at 6 bar BMEP, thereby establishing a general framework for in cylinder mixture properties required in realizing RCCI combustion [22]. Bekdemir et al [23] applied a multi-zone approach to NGdiesel RCCI combustion in a heavy-duty engine.…”

Optimization of reactivity-controlled compression ignition combustion fueled with diesel and hydrous ethanol using response surface methodology

“…Increasing research effort has been devoted to 97 utilization of alternative fuels in RCCI engines. Fuels that have been 98 studied as substitutes for gasoline and diesel fuel include, natural 99 gas [8][9][10], methanol [11,12], ethanol [3,[13][14][15]] and biodiesel 100 [12,15]. Promising results have been presented in these studies, 101 indicating that RCCI allows excellent flexibility to alternative fuels.…”

Ignition dynamics of DME/methane-air reactive mixing layer under reactivity controlled compression ignition conditions: Effects of cool flames

“…Although compressed natural gas can be used in diesel engines, it causes poor performance and emissions characteristics at certain engine operating loads. The poor ignitability of natural gas could also result in increased emissions of unburnt hydrocarbons (HC) and carbon monoxide (CO) [6,7]. The use of natural gas fuels in compression ignition (CI) engines through dual fuel technology represents a promising way to reach a good solution.…”