Prospects and Challenges of DME Fueled Low-Temperature Combustion Engine Technology

Impacts of Using Exhaust Gas Recirculation and Various Amount of Dimethyl Ether Premixed Ratios on Combustion and Emissions on a Dual-Fuel Compression Ignition Engine

“…An unfavorable DME feature is its low calorific value which indicates that a larger amount of fuel per cycle must be injected to attain an equivalent level of engine power. The most of experimental and analytical investigations [12][13][14][15][16][17] on DME-fueled compression ignition engines has been focused on the engines running under blended-fuel mode (DME/DO) or single-fuel combustion mode (DME only).…”

“…Extensive research has been carried out [6,[11][12][13][14][15][16][17][18][19][20][21] on the use of DME as an alternative fuel for compression ignition engines. These works highlighted the positive impact of replacing diesel fuel with DME on the exhaust gas composition.…”

Combustion Performance and Low NOx Emissions of a Dimethyl Ether Compression-Ignition Engine at High Injection Pressure and High Exhaust Gas Recirculation Rate

“…Various injection strategies [3][4][5][6][7][8], engine operation conditions [9][10][11] and fuel blends [12][13][14][15][16][17][18] of DME-fueled engines have been investigated. Youn et al [8] showed that the use of DME was associated with a higher pressure and earlier increase in the Energies 2022, 15,1912 2 of 11 heat release rate (HRR) compared to diesel, because the ignition delay was shorter, the vaporization characteristics were more favorable, and the cetane number was higher.…”

“…They used a pilot injection strategy that reduced the combustion temperature. Mehra and Agarwal [6] reported reduced exhaust emissions from a DME engine, with low-temperature combustion, using multiple injection strategies. This enabled reductions in nitrogen oxide (NO x ) and soot emissions when the combustion temperature is decreased during the combustion process.…”