Performance and emissions of a heavy-duty diesel engine fuelled with diesel and LNG (liquid natural gas)

Performance and Emission Characteristics Analysis of Dual Fuel Compression Ignition Engine Using Natural Gas and Diesel

“…The slow burning rate resulted in a greater heat loss during combustion thereby decreasing the BTE. Many researchers such as Cheenkachorn et al [25] Abdelaal et al [26] and Papagiannakis et al [27] showed in their experimental investigation that BTE decreased in dual fuel operation which is in line with the results of the present study. Figure 3.…”

“…In an experiment conducted by Liu et al [28] in a CNG-diesel dual fuel engine showed that NOx emission of dual fuel mode was reduced by 30% averagely in comparison to those of diesel mode. Imran et al [29] reported significant reduction in NOX emission with dual fuel mode compared to normal diesel mode in an experiment they conducted over a wide range of engine speed at both normal diesel mode and natural gas dual fuel mode in a single-cylinder compression ignition engine.In another research conducted by Cheenkachorn et al [25] on the comparison of NOX emission of normal diesel operation and natural gas-diesel dual fuel operation in a heavy-duty diesel engine showed that a significant reduction in NOx emission in dual fuel mode when compared to only diesel fuel mode.Based on the research conducted by other researchers most authors showed that lower NO x emission with natural gas/diesel dual fuel combustion compared to normal diesel operation. The results obtained in this research are in-line with the experiments conducted by other researchers.…”

Experimental study of co-combustion ratio on fuel consumption and emissions of NG–diesel dual-fuel heavy-duty engine equipped with a common rail injection system

“…Cheenkachorn et al [13] found that compared to diesel, the specific fuel consumption, thermal efficiency, and volumetric efficiency of dual-fuel decreased; and the emissions of HC and CO increased, while the emissions of NOx and CO 2 decreased. Liu et al [14] found with the increase of the pilot fuel quantity, HC emissions reduced significantly while PM emission increased.…”

Experimental investigation on performance and heat release analysis of a pilot ignited direct injection natural gas engine

“…Their experimental results indicated that the optimum engine performance could be obtained with the utilization of different combustion strategies under different loads and their CFD modeling results demonstrated that the level of turbulence was a key factor for flame propagation, which was highly dependent on the mixing condition in the combustion chamber. Cheenkachorn et al [17] compared the performance and emission characteristics of the dual fuel operation with that of the diesel operation. According to their findings, the thermal efficiency and volumetric efficiency of dual fuel operation were lower than single diesel operation while the specific fuel consumption was slightly improved.…”