Effects of diesel-engine exhaust emissions on seed germination and seedling growth of Brassicaceae family using digital image analysis

2021 ◽  
Author(s):  
Fatemeh Afsharnia ◽  
Seyed Amir Moosavi
Keyword(s):  
Image Analysis ◽  
Diesel Engine ◽  
Seed Germination ◽  
Seedling Growth ◽  
Digital Image ◽  
Digital Image Analysis ◽  
Exhaust Emissions ◽  
Engine Exhaust ◽  
Diesel Engine Exhaust ◽  
Brassicaceae Family

The Harm and Discussion on Control Technology of Flameproof Diesel Engine Exhaust Emissions

2017 ◽  
Vol 865 ◽  
pp. 224-229
Author(s):  
Xiao Wang
Keyword(s):  
Diesel Engine ◽  
Coal Mine ◽  
Exhaust Emissions ◽  
Exhaust Emission ◽  
Control Technology ◽  
Engine Exhaust ◽  
Diesel Engine Exhaust ◽  
Development Direction

It described that the main harmful exhaust emissions in the flameproof diesel engine of the flameproof vehicle with the rubber wheeles in the coal mine ,and the harm of the work personnel health in underground, Introduces the technology and method of controlling the exhaust emission of the coal mine explosion proof diesel engine, Points out the problems of control technology and insufficiency in exhaust emission, And puts forward the thought and development direction controlling exhaust emissions technology of the explosion proof diesel engine of coal mine on future.

The Effects of Discrete Transients in Speed and Load on Diesel Engine Exhaust Emissions

1985 ◽  
Author(s):  
Timothy J. Callahan ◽  
Thomas W. Ryan ◽  
Harry Dietzmann ◽  
Robert Waytulonis
Keyword(s):  
Diesel Engine ◽  
Exhaust Emissions ◽  
Engine Exhaust ◽  
Diesel Engine Exhaust

Diesel Engine Exhaust Emissions

2010 ◽  
pp. 417-485 ◽  
Author(s):  
Helmut Tschoeke ◽  
Andreas Graf ◽  
Jürgen Stein ◽  
Michael Krüger ◽  
Johannes Schaller ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Exhaust Emissions ◽  
Engine Exhaust ◽  
Diesel Engine Exhaust

scholarly journals Measuring long chain alkanes in diesel engine exhaust by thermal desorption PTR-MS

2013 ◽  
Vol 6 (4) ◽  
pp. 6005-6046 ◽  
Author(s):  
M. H. Erickson ◽  
M. Gueneron ◽  
B. T. Jobson
Keyword(s):  
Molecular Weight ◽  
Diesel Engine ◽  
Thermal Desorption ◽  
Exhaust Emissions ◽  
Major Constituent ◽  
Ion Distribution ◽  
Engine Exhaust ◽  
Diesel Engine Exhaust ◽  
Fragment Ions ◽  
Long Chain

Abstract. A method using thermal desorption sampling and analysis by PTR-MS to measure long chain alkanes (C12-C18) and other larger organics associated with diesel engine exhaust emissions is described. Long chain alkanes undergo dissociative proton transfer reactions forming a series of fragment ions with formula CnH2n+1. The PTR-MS is insensitive to n-alkanes less than C8 but displays an increasing sensitivity for larger alkanes. Fragment ion distribution and sensitivity is a function of drift conditions. At 80 Td the most abundant ion fragments from C10 to C16 n-alkanes were m/z 57, 71 and 85. The mass spectrum of gasoline and diesel fuel at 80 Td displayed ion group patterns that can be related to known fuel constituents, such as alkanes, alkylbenzenes and cycloalkanes, and other compound groups that are inferred from molecular weight distributions such as dihydronapthalenes and naphthenic monoaromatics. It is shown that thermal desorption sampling of gasoline and diesel engine exhausts at 80 Td allows for discrimination against light alkanes and alkenes which are a major constituent of both exhausts, allowing for quantification of higher molecular weight alkanes from the abundance of CnH2n+1 fragment ions. Using this approach, the molar abundance of C12-C18 alkanes in diesel engine exhaust was found to be 75% that of the total C1-C4 alkylbenzene abundance. While the PTR-MS mass spectra of gasoline and diesel exhaust looked similar, the abundance of higher molecular weight compounds relative to that of C4-alkylbenzenes was much greater in diesel engine exhaust. The abundance patterns of compounds determined by thermal desorption sampling may allow for emission profiles to be developed to better quantify the relative contributions of diesel and gasoline exhaust emissions of larger organic compounds to urban air concentrations.

Investigation of the Benefits of Controlling the Start of Combustion in a Direct Injection Diesel Engine Using an Optical Sensor

1994 ◽  
Vol 208 (2) ◽  
pp. 129-137 ◽  
Author(s):  
N Ladommatos ◽  
R A Balian ◽  
R Horrocks ◽  
L Cooper
Keyword(s):  
Diesel Engine ◽  
Optical Sensor ◽  
Direct Injection ◽  
Exhaust Emissions ◽  
Operating Conditions ◽  
Engine Exhaust ◽  
Diesel Engine Exhaust ◽  
Direct Injection Diesel Engine ◽  
Ignition Quality ◽  
Start Of Combustion

Results are presented which show the effect of controlling the start of combustion on direct injection diesel engine exhaust emissions at various engine operating conditions. The ability of the sensor to detect reliably the start of combustion under various engine conditions is first assessed. The effects on exhaust emissions of controlling the start of combustion is then evaluated using a fuel of reduced ignition quality.

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