Application of Surovikin's Carbon Black Model for Simulating Soot Emission from Diesel Engine Using a Three Dimensional KIVA Code

2003 ◽  
Author(s):  
Aerattukkara V. Kumar ◽  
Hajime Ishii ◽  
Yuichi Goto
Keyword(s):  
Diesel Engine ◽  
Carbon Black ◽  
Three Dimensional ◽  
Soot Emission ◽  
Kiva Code

Effect of Cetane Number Improver on Emission Characteristics of Methanol/Diesel Blend Fuel

2012 ◽  
Vol 512-515 ◽  
pp. 1888-1891
Author(s):  
Jia Yi Du ◽  
Wei Xun Zhang ◽  
Deng Pan Zhang ◽  
Zhen Yu Sun
Keyword(s):  
Diesel Engine ◽  
Direct Injection ◽  
Cetane Number ◽  
Nox Emission ◽  
Fuel Load ◽  
Emission Characteristics ◽  
Soot Emission ◽  
Maximum Torque ◽  
Blend Fuel ◽  
Co Emission

The influence of cetane number improver on emission characteristics of diesel engine fueled with methanol/diesel blend fuel was investigated. Methanol/diesel blend fuel was prepared, in which the methanol content is 10%, different mass fraction (0%，0.5%) of cetane number improver were added to the blend fuel. Load characteristic experiments at maximum torque speed of the engine were carried out on 4B26 direct injection diesel engine. The results show that, compared with the engine fueled with diesel, the CO emission increases under low loads and reduces under medium and high loads, the HC emission increases, the NOx emission decreases under medium and low loads and increases under high loads, the soot emission reduces significantly when the diesel engine fueled with blends. When cetane number improver was added to blends, the CO and NOx emission reduces, the HC emission decreases, the soot emission increases to some extent compared with the methanol/dieselblend fuel without cetane number improver.

Combustion and Emission Characteristics of Dual Fuel Engine for Different Parameters

2021 ◽  
Vol 13 (4) ◽  
Author(s):  
Jianjun Zhu ◽  
Peng Li ◽  
Yufeng Xie ◽  
Xin Geng
Keyword(s):  
Diesel Engine ◽  
Heat Release ◽  
Heat Release Rate ◽  
Compression Ratio ◽  
Release Rate ◽  
Emission Characteristics ◽  
Soot Emission ◽  
Cylinder Pressure ◽  
Fuel Delivery ◽  
Soot Emissions

The effects of compression ratio and fuel delivery advance angle on the combustion and emission characteristics of premixed methanol charge induced ignition by Fischer Tropsch diesel engine were investigated using a CY25TQ diesel engine. In the process of reducing the compression ratio from 16.9 to 15.4, the starting point of combustion is fluctuating, the peak of in-cylinder pressure and the maximum pressure increase rate decrease by 44.5% and 37.7% respectively. The peak instantaneous heat release rate increases by 54.4%. HC and CO emissions are on a rising trend. NOx and soot emissions were greatly decreased. The soot emission has the biggest drop of 50%. Reducing the fuel delivery advance angle will make the peak of in-cylinder pressure and the peak of pressure rise rate increase while the peak of heat release rate decreases. The soot emission is negatively correlated with the fuel delivery advance angle. When the fuel delivery advance angle is 16° CA, the soot emissions increased the most by 130%.

Soot Emission from a Direct Injection Diesel Engine

2004 ◽  
Author(s):  
Sangsu Lee ◽  
Dongheun Shin ◽  
Jeongmin Lee ◽  
Nakwon Sung
Keyword(s):  
Diesel Engine ◽  
Direct Injection ◽  
Soot Emission ◽  
Direct Injection Diesel Engine

Experimental Study of Carbon Black and Diesel Engine Soot Oxidation Kinetics Using Thermogravimetric Analysis

2012 ◽  
Vol 26 (9) ◽  
pp. 5613-5625 ◽  
Author(s):  
Hom N. Sharma ◽  
Lakshitha Pahalagedara ◽  
Ameya Joshi ◽  
Steven L. Suib ◽  
Ashish B. Mhadeshwar
Keyword(s):  
Experimental Study ◽  
Diesel Engine ◽  
Thermogravimetric Analysis ◽  
Carbon Black ◽  
Oxidation Kinetics ◽  
Soot Oxidation

Effect of Shroud and Orientation Angles of Inlet Valve on Flow Characteristic Through Helical–Spiral Inlet Port in Diesel Engine

2017 ◽  
Vol 139 (10) ◽  
Author(s):  
A. Abd El-Sabor Mohamed ◽  
Saleh Abo-Elfadl ◽  
Abd El-Moneim M. Nassib
Keyword(s):  
Diesel Engine ◽  
Three Dimensional ◽  
Orientation Angle ◽  
Combustion Efficiency ◽  
Inlet Valve ◽  
Maximum Increase ◽  
Inlet Port ◽  
A Value ◽  
Engine Cylinder ◽  
Dimensional Simulation

The in-cylinder airflow motion is an important factor that severely affects combustion efficiency and emissions in diesel engines. It is greatly affected by the inlet port and valve geometries. A diesel engine cylinder with a helical–spiral inlet port is used in this study. An ordinary inlet valve and shrouded inlet valve having different shroud and orientation angles are used to study the shroud effect on the swirl and tumble motion inside the engine cylinder. Four shroud angles of 90 deg, 120 deg, 150 deg, and 180 deg are used. With each shroud angle, four orientation angles of 0 deg, 30 deg, 60 deg, and 90 deg are also used. Three-dimensional simulation model using the shear stress transport (SST) k–ω model is used for simulating air flow through the inlet port, inlet valve, and engine cylinder during both the intake and compression strokes. The results showed that increasing the valve shroud angle increases the swirl, and the maximum increase occurs at a valve shroud angle of 180 deg and orientation angle of 0 deg with a value of 80% with respect to the ordinary valve. But it decreases the volumetric efficiency, and the maximum decrement occurs at valve shroud of 180 deg and orientation angle of 90 deg with a value of 5.98%. Variations of the shroud and orientation angles have very small effect on the tumble inside the engine cylinder.

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