Catalyst-Heating Operation in a Medium-Duty Diesel Engine: Operating Strategy Calibration, Fuel Reactivity, and Fuel Oxygen Effects

2021 ◽  
Author(s):  
Stephen Busch ◽  
Angela Wu ◽  
Seokwon Cho
Keyword(s):  
Diesel Engine ◽  
Operating Strategy ◽  
Oxygen Effects

Operating strategy for optimized CO2 and NOx emissions of diesel-engine mild-hybrid vehicles

2015 ◽  
pp. 93-111 ◽  
Author(s):  
Marcel Wüst ◽  
Michael Krüger ◽  
Dirk Naber ◽  
Lisa Cross ◽  
Andreas Greis ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Hybrid Vehicles ◽  
Nox Emissions ◽  
Operating Strategy ◽  
Mild Hybrid

Operating strategy for gasoline/diesel dual-fuel premixed compression ignition in a light-duty diesel engine

2017 ◽  
Vol 18 (6) ◽  
pp. 943-950 ◽  
Author(s):  
Jeongwoo Lee ◽  
Sanghyun Chu ◽  
Jaegu Kang ◽  
Kyoungdoug Min ◽  
Hyunsung Jung ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Dual Fuel ◽  
Compression Ignition ◽  
Operating Strategy ◽  
Light Duty

Applying an Extended Flamelet Model for a Multiple Injection Operating Strategy in a Common-Rail DI Diesel Engine

2009 ◽  
Vol 2 (1) ◽  
pp. 727-741 ◽  
Author(s):  
M. Gauding ◽  
C. Felsch ◽  
B. Kerschgens ◽  
A. Vanegas ◽  
H. Won ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Common Rail ◽  
Multiple Injection ◽  
Flamelet Model ◽  
Operating Strategy ◽  
Di Diesel Engine

Effects of Hyperoxia on Lung Utrastructure

1970 ◽  
Vol 28 ◽  
pp. 26-27
Author(s):  
Gladys Harrison
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Light Microscopy ◽  
Oxygen Effects ◽  
Age Dependent ◽  
The Central Nervous System ◽  
The Subject ◽  
Space Age ◽  
Alveolar Septa ◽  
Extensive Damage

With the advent of the space age and the need to determine the requirements for a space cabin atmosphere, oxygen effects came into increased importance, even though these effects have been the subject of continuous research for many years. In fact, Priestly initiated oxygen research when in 1775 he published his results of isolating oxygen and described the effects of breathing it on himself and two mice, the only creatures to have had the “privilege” of breathing this “pure air”.Early studies had demonstrated the central nervous system effects at pressures above one atmosphere. Light microscopy revealed extensive damage to the lungs at one atmosphere. These changes which included perivascular and peribronchial edema, focal hemorrhage, rupture of the alveolar septa, and widespread edema, resulted in death of the animal in less than one week. The severity of the symptoms differed between species and was age dependent, with young animals being more resistant.

The Diesel Engine

1915 ◽  
Vol 80 (2085supp) ◽  
pp. 394-395
Author(s):  
C. Kloos
Keyword(s):  
Diesel Engine

RESEARCH OF INDICATORS OF A VEHICLE WITH A DIESEL WORKING ON DIESEL AND DIESEL GAS CYCLES USING THE MATHEMATICAL MODEL

2020 ◽  
pp. 14-19
Author(s):  
Serhii Kovbasenko ◽  
Andriy Holyk ◽  
Serhii Hutarevych
Keyword(s):  
Mathematical Model ◽  
Diesel Engine ◽  
Environmental Performance ◽  
Energy Performance ◽  
Dual Fuel ◽  
Fuel System ◽  
Compressed Natural Gas ◽  
Diesel Vehicles ◽  
Diesel Cycle ◽  
The Mathematical Model

The features of an advanced mathematical model of motion of a truck with a diesel engine operating on the diesel and diesel gas cycles are presented in the article. As a result of calculations using the mathematical model, a decrease in total mass emissions as a result of carbon monoxide emissions is observed due to a decrease in emissions of nitrogen oxides and emissions of soot in the diesel gas cycle compared to the diesel cycle. The mathematical model of a motion of a truck on a city driving cycle according to GOST 20306-90 allows to study the fuel-economic, environmental and energy indicators of a diesel and diesel gas vehicle. The results of the calculations on the mathematical model will make it possible to conclude on the feasibility of converting diesel vehicles to using compressed natural gas. Object of the study – the fuel-economic, environmental and energy performance diesel engine that runs on dual fuel system using CNG. Purpose of the study – study of changes in fuel, economic, environmental and energy performance of vehicles with diesel engines operating on diesel and diesel gas cycles, according to urban driving cycle modes. Method of the study – calculations on a mathematical model and comparison of results with road tests. Bench and road tests, results of calculations on the mathematical model of motion of a truck with diesel, working on diesel and diesel gas cycles, show the improvement of environmental performance of diesel vehicles during the converting to compressed natural gas in operation. Improvement of environmental performance is obtained mainly through the reduction of soot emissions and nitrogen oxides emissions from diesel gas cycle operations compared to diesel cycle operations. The results of the article can be used to further develop dual fuel system using CNG. Keywords: diesel engine, diesel gas engine, CNG

Effect of Al2O3 and SiO2 Metal Oxide Nanoparticles Blended with POME on Combustion, Performance and Emissions Characteristics of a Diesel Engine

2019 ◽  
Vol 16 (3) ◽  
pp. 6859-6873 ◽  
Author(s):  
M. A. Adzmi ◽  
A. Abdullah ◽  
Z. Abdullah ◽  
A. G. Mrwan
Keyword(s):  
Diesel Engine ◽  
Metal Oxide Nanoparticles ◽  
Peak Torque ◽  
Combustion Characteristic ◽  
Maximum Pressure ◽  
Single Cylinder ◽  
Engine Testing ◽  
Co Addition ◽  
Carbon Dioxide Co2 ◽  
Test Fuel

Evaluation of combustion characteristic, engine performances and exhaust emissions of nanoparticles blended in palm oil methyl ester (POME) was conducted in this experiment using a single-cylinder diesel engine. Nanoparticles used was aluminium oxide (Al2O3) and silicon dioxide (SiO2) with a portion of 50 ppm and 100 ppm. SiO2 and Al2O3 were blended in POME and labelled as PS50, PS100 and PA50, PA100, respectively. The data results for PS and PA fuel were compared to POME test fuel. Single cylinder diesel engine YANMAR TF120M attached with DEWESoft data acquisition module (DAQ) model SIRIUSi-HS was used in this experiment. Various engine loads of zero, 7 N.m, 14 Nm, 21 N.m and 28 N.m at a constant engine speed of 1800 rpm were applied during engine testing. Results for each fuel were obtained by calculating the average three times repetition of engine testing. Findings show that the highest maximum pressure of nanoparticles fuel increase by 16.3% compared to POME test fuel. Other than that, the engine peak torque and engine power show a significant increase by 43% and 44%, respectively, recorded during the PS50 fuel test. Meanwhile, emissions of nanoparticles fuel show a large decrease by 10% of oxide of nitrogen (NOx), 6.3% reduction of carbon dioxide (CO2) and a slight decrease of 0.02% on carbon monoxide (CO). Addition of nanoparticles in biodiesel show positive improvements when used in diesel engines and further details were discussed.  

Sign in / Sign up

Export Citation Format

Share Document