Effect of Water Injection Parameters on Upper Load Limit and Nitrogen Oxides Emissions of a Homogeneous Charge Compression Ignition Engine—A Computational Fluid Dynamics Study DOI

Bharat Naik,

J.M. Mallikarjuna

SAE International Journal of Engines, Journal Year: 2024, Volume and Issue: 18(1)

Published: Nov. 22, 2024

<div>Direct water injection inside the cylinder is a promising technique to enhance upper load limit and reduce nitrogen oxides emissions. The advantage of depends on percentage evaporated cylinder. evaporation upon parameters. Hence, computational fluid dynamics analysis done determine effect temperature, spray cone angle, nozzle hole diameter, number holes in-cylinder distribution evaporation, engine performance, emissions homogeneous charge compression ignition engine. This considers temperature from 295 K 385 K, angle 8° 24°, diameter 0.14 mm 0.205 mm, 4 7. models used are validated available experimental data in literature for considered. Here, injector parameters optimized based emissions, maximum rate pressure rise, heat release rate, vapors. study found that case with six holes, 12° gave better results than other cases With optimum parameters, indicated mean effective increased 3.23 bar 4.39 bar, which about 35.9% more without case, reduced by 64.7% compared case.</div>

Language: Английский

1D simulation of the impact of direct water injection on a small SI engine performance and emissions DOI Creative Commons
Konrad Kuchmacz, Marcin Noga

Silniki Spalinowe/Combustion Engines, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 14, 2025

The paper contain results of 1D simualtion the direct water injection for four stroke single cylinder gasoline engine and shows comparison between cycles with without addition.Various timing, as well to fuel ratios were considered, including during compression just after finishing combustion. Results show that in internal combustion engines has a minimal effect on overall performance parameters but improves emission levels, particularly reducing NOx emissions. Injection at 100 deg bTDC consistently greatest reduction emissions across scenarios. However, late increases HC

Language: Английский

Citations

0
Investigation of the Effect of Water Injection Strategy on Combustion and Emission Characteristics of Hydrogen Direct Injection Engine DOI

S. Lei,

Guohui Zhu,

Chuanfu Kou

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Effect of Water Injection Parameters on Upper Load Limit and Nitrogen Oxides Emissions of a Homogeneous Charge Compression Ignition Engine—A Computational Fluid Dynamics Study DOI

Bharat Naik,

J.M. Mallikarjuna

SAE International Journal of Engines, Journal Year: 2024, Volume and Issue: 18(1)

Published: Nov. 22, 2024

<div>Direct water injection inside the cylinder is a promising technique to enhance upper load limit and reduce nitrogen oxides emissions. The advantage of depends on percentage evaporated cylinder. evaporation upon parameters. Hence, computational fluid dynamics analysis done determine effect temperature, spray cone angle, nozzle hole diameter, number holes in-cylinder distribution evaporation, engine performance, emissions homogeneous charge compression ignition engine. This considers temperature from 295 K 385 K, angle 8° 24°, diameter 0.14 mm 0.205 mm, 4 7. models used are validated available experimental data in literature for considered. Here, injector parameters optimized based emissions, maximum rate pressure rise, heat release rate, vapors. study found that case with six holes, 12° gave better results than other cases With optimum parameters, indicated mean effective increased 3.23 bar 4.39 bar, which about 35.9% more without case, reduced by 64.7% compared case.</div>

Language: Английский

Citations

0