Potential Assessment of Methanol to Reduce the Emission in LTC Mode Diesel Engine

Kumar, Prem; Sandhu, Sarbjot Singh; Singh, Mandeep; Deep, Akash

doi:10.1007/978-981-16-1280-0_11

Cited by 8 publications

(5 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…26 Consequently, the CP peak becomes higher and shifts nearer to TDC, which results in a higher cylinder temperature, which promotes the thermal or zeldovic NOx formation mechanism. 41,53 In the present work also, high NOx emissions were noted when CP was high ((Supplementary Figures 1(a) to (c) and 2(a) to (c)). Moreover, at part load, the lowest NOx was observed at retarded IT of 8.2°BTDC and an IP of 35 MPa, where minimum in-cylinder pressure and temperature were noted (Figures 2(d) and 5(a); Supplementary Figure 1(a)).…”

Section: Resultssupporting

confidence: 72%

An investigation of optimum control of injection timing/injection pressure for a multicylinder common rail direct injection engine fueled with AB20 blend

Singh

Kumar

Sandhu

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

Self Cite

View full text Add to dashboard Cite

A multicylinder turbocharged common rail direct injection engine was tested at part load (62.4 Nm) and high load (156 Nm) to determine the optimum combination of injection pressure (IP) and injection timing (IT) for AB20 blended fuel. IP and IT were varied from default settings, that is, 9.2° before top dead center (BTDC), 45 MPa at part load; 9.8° BTDC, 95 MPa at high load, as specified in the calibration map of the engine. As a result of the experimental results, brake thermal efficiency (BTE) increased up to 5.36% when IP increased from 35 MPa to 45 MPa and 0.72% when IP increased from 45 MPa to 55 MPa under the part load condition. At high load, the maximum BTE of 38.22% was attained at 105 MPa IP and 9.8° BTDC IT. At this condition, nitrogen oxide (NOx) emission was noted as 1353 ppm, which is 12.28% higher than the NOx noted for diesel fuel at the default IP and IT conditions. When IP increases from 35 to 55 MPa at part load and 85–105 MPa at high load, cylinder pressure, heat release rate, and rate of pressure rise increase at all tested ITs. At high load, the condition of retarded IT (8.8° BTDC) and default IP (95 MPa) shows (a) 2.35% higher BTE and (b) almost similar NOx and improved HC, CO, and smoke emissions for the AB20 blend. Moreover, at the same experimental conditions, premixed heat release for the AB20 blend was noted to be 70.16 J/Deg./C.A, with heat release rate peak at 6° ATDC.

show abstract

Section: Resultssupporting

confidence: 72%

An investigation of optimum control of injection timing/injection pressure for a multicylinder common rail direct injection engine fueled with AB20 blend

Singh

Kumar

Sandhu

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

Self Cite

View full text Add to dashboard Cite

show abstract

“…Hountalas et al reported that the poor combustion process can occur due to the reduced oxygen availability inside the cylinder under higher EGR temperature. It is documented that a low level of NO x emissions and smoke was found with the PPC strategy …”

Section: Introductionmentioning

confidence: 99%

“…It is documented that a low level of NO x emissions and smoke was found with the PPC strategy. 33 The use of alternative fuels in the diesel engine has been the focus of most research studies due to their clean burning, wide availability, and eco-friendliness. 34 It is reported in prior works 35,36 that the PM, CO, and HC reduced from the combustion of cleaner fuels.…”

Section: Introductionmentioning

confidence: 99%

Reducing the Effect of High Sulfur Content in Diesel Fuel on NO_x Emissions and PM Characteristics Using a PPCI Mode Engine and Gasoline–Diesel Blends

et al. 2022

View full text Add to dashboard Cite

Recently, high sulfur content in diesel fuel is one of the main problems that have an effect on combustion and emission characteristics. Iraq is one of many countries in the world that use diesel fuel with high sulfur content. Therefore, the partially premixed combustion ignition (PPCI) concept and different blend ratios of gasoline–diesel (GD30, GD40, and GD50) were suggested in this study to reduce the sulfur content in the fuel, improve the engine performance, and reduce the exhaust emissions. The combined effect of adding gasoline to the diesel fuel and manipulating the fuel injection timings can lead to better and clean combustion. For the same engine operating conditions, it is found that the brake thermal efficiency (BTE) decreases during the combustion of GD blends in comparison with diesel fuel. Furthermore, the results of using GD blends showed a small reduction in brake-specific fuel consumption (BSFC) compared to the conventional diesel fuel. The exhaust gas temperature reduces from the combination effect of PPCI mode and GD blends, which in turn decreases the NO x emission concentration under variable conditions of engine loads and speeds. It is indicated that the NO x emissions significantly decreased during the combustion of GD30, GD40, and GD50 blends by 25.94, 50.9, and 84%, respectively, in comparison with diesel fuel. In addition, higher reduction in CO and HC formation was obtained during the combustion of conventional fuel in comparison with the combustion of GD blends. The results showed that the number and concentration of PM reduced more when using GD blends and PPCI mode. The average particle diameter (d p) decreased from the combustion of GD blends in comparison with diesel fuel. The particle diameter of the GD blend was varied from 25 to 26 nm compared to those of diesel fuel of 35 and 36 nm under the same engine operating conditions. Reducing the sulfur content in GD blends contributed to a clear reduction in SO2 and H2S emissions by 57.85 and 50.12%, respectively.

show abstract

“…Recently, the increasing scarcity of fossil fuels, energy security concerns, and environmental pollution have intensified research into the use of clean renewable fuels in a variety of power plants and daily life sectors, such as automotive and transportation sectors, urban traffic transportation, and power generating devices. [1][2][3] Among all sectors, the transportation industry has been one of the significant consumers of fossil fuels and contributors to environmental pollution. ICE is the key prime movers for automotive and transportation vehicles.…”

Section: Introductionmentioning

confidence: 99%

“…[7][8][9][10][11] It has been demonstrated in several studies that LTC combustion techniques combined with renewable higher RON fuel could achieve high BTE while producing ultra-low NO X levels and smoke in most CI engines under most operating conditions. 2,[11][12][13] The researchers discovered that higher alcohol levels in biodiesel reduced density and ignition quality, but BTE improved by 30% with 8.9% biodiesel blending. 14 Aoyama et al 15 indicated that the PPC method, which offers coupling across the start of combustion (SOC) and SOI, might be used to decrease the rapid pressure rise rate (PRR).…”

Section: Introductionmentioning

confidence: 99%

An experimental investigation into the combustion stability and emissions of an n-butanol/diesel blended fueled partially premixed compression ignition (PPCI) engine

Kumar

Sandhu

2022

International Journal of Engine Research

Self Cite

View full text Add to dashboard Cite

Higher cyclic variability in internal combustion engines (ICE) increases driveability problems, specific fuel consumption, and exhaust emissions. Consequently, quantification of the combustion stability in different combustion parameters is essential for the design of closed-loop control for a partially premixed combustion (PPC). This research examines the impacts of a PPC strategy on the spectral features of IMEP combustion parameters for early, and late injection timings of a 4-cylinder CRDI engine using wavelet transforms (WT). Furthermore, operating points were optimized based on the combustion and emissions characteristics of the partially premixed compression ignition engine. Results indicated that the early start of injection (SOI) timing of 12° CA BTDC has a lower standard deviation in the time-series data of IMEP than the late SOI timing. Moreover, when the amount of n-butanol in diesel fuel was increased from 0% to 20% at a load of 2 bar BMEP, COVIMEP decreased from 3.1% to 2.75% at early SOI timing. The WT results reveal that the continuous strong intensity band pattern changes irregularly when the injection timing is advanced. It was also found that at lower cyclic variability conditions (SOI = 12°CA BTDC), CO and smoke emissions decreased, and there was a noticeable increase in NOx emissions.

show abstract

Potential Assessment of Methanol to Reduce the Emission in LTC Mode Diesel Engine

Cited by 8 publications

References 72 publications

An investigation of optimum control of injection timing/injection pressure for a multicylinder common rail direct injection engine fueled with AB20 blend

An investigation of optimum control of injection timing/injection pressure for a multicylinder common rail direct injection engine fueled with AB20 blend

Reducing the Effect of High Sulfur Content in Diesel Fuel on NO_x Emissions and PM Characteristics Using a PPCI Mode Engine and Gasoline–Diesel Blends

An experimental investigation into the combustion stability and emissions of an n-butanol/diesel blended fueled partially premixed compression ignition (PPCI) engine

Contact Info

Product

Resources

About

Potential Assessment of Methanol to Reduce the Emission in LTC Mode Diesel Engine

Cited by 8 publications

References 72 publications

An investigation of optimum control of injection timing/injection pressure for a multicylinder common rail direct injection engine fueled with AB20 blend

An investigation of optimum control of injection timing/injection pressure for a multicylinder common rail direct injection engine fueled with AB20 blend

Reducing the Effect of High Sulfur Content in Diesel Fuel on NOx Emissions and PM Characteristics Using a PPCI Mode Engine and Gasoline–Diesel Blends

An experimental investigation into the combustion stability and emissions of an n-butanol/diesel blended fueled partially premixed compression ignition (PPCI) engine

Contact Info

Product

Resources

About

Reducing the Effect of High Sulfur Content in Diesel Fuel on NO_x Emissions and PM Characteristics Using a PPCI Mode Engine and Gasoline–Diesel Blends