scholarly journals A high voltage electrostatic filter for particulate matter PM2.5 capture applied in motor vehicle exhaust system

2020 ◽  
Vol 1528 ◽  
pp. 012001
Author(s):  
Arinto Y.P. Wardoyo ◽  
Hari A. Dharmawan ◽  
M. Nurhuda ◽  
Arif Budianto
Keyword(s):  
Particulate Matter ◽  
High Voltage ◽  
Motor Vehicle ◽  
Exhaust System ◽  
Vehicle Exhaust ◽  
Electrostatic Filter

Composition of Light-Duty Motor Vehicle Exhaust Particulate Matter in the Denver, Colorado Area

1999 ◽  
Vol 33 (14) ◽  
pp. 2328-2339 ◽  
Author(s):  
Steven H. Cadle ◽  
Patricia A. Mulawa ◽  
Eric C. Hunsanger ◽  
Ken Nelson ◽  
Ronald A. Ragazzi ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Motor Vehicle ◽  
Vehicle Exhaust ◽  
Light Duty ◽  
Exhaust Particulate

scholarly journals Planning an experiment for cleaning exhaust gases with ultrasound

2021 ◽  
Vol 18 (1) ◽  
pp. 86-92
Author(s):  
A. S. Kadyrov ◽  
B. K. Sarsembekov ◽  
A. B. Kukisheva
Keyword(s):  
Motor Vehicle ◽  
Combustion Engine ◽  
Similarity Theory ◽  
Oscillation Amplitude ◽  
Exhaust System ◽  
Pressure Oscillation ◽  
Ultrasonic Frequency ◽  
Settling Rate ◽  
Vehicle Exhaust ◽  
Exhaust Gases

Introduction. The article deals with the protection of the environment from harmful components of the exhaust gases of a motor vehicle. In order to solve this problem, it is proposed to develop an additional device to the exhaust system of an internal combustion engine, based on the ultrasonic coagulation cleaning method.Materials and methods. Due to the need for an environmentally friendly vehicle exhaust system, an experiment is planned to determine the particle gas settling rate on the ultrasonic stand. The correct setting of the experiment requires a preliminary theoretical analysis and a reduction in the number of parameters influencing the experiment. At the time of the experiment, the number of parameters considered should reflect the main processes and their interactions fairly accurately. However, ultrasonic coagulation depends on most parameters, such as particle settling velocity, ultrasonic wave pressure, oscillation amplitude, ultrasonic frequency, particle radius, dynamic viscosity, gravity acceleration and particle mass, which can complicate and increase the time for experimentation. The method of similarity theory and dimensional analysis was used to reduce the set of variables. This method reduces the number of experiments and saves time, costs and other resources spent on the experiment with a large number of parameters.Results. As a result, a minimum number of dimensional criteria were obtained to improve the efficiency of the ultrasonic screen processing of experimental data.Conclusion. Thus, the dimensionless criteria obtained make it possible to draw up a plan for an experiment to determine the settling rate of car exhaust gas particles on an ultrasonic stand and confirm the applicability of the ultrasonic coagulation treatment method.

Spark Ignition Motor Vehicle Exhaust Particulate Matter Characterization

2000 ◽  
Vol 6 (S2) ◽  
pp. 72-73
Author(s):  
Douglas A. Blom ◽  
Ted A. Nolan
Keyword(s):  
Electron Microscopy ◽  
Particulate Matter ◽  
Health Effects ◽  
Motor Vehicle ◽  
Front Range ◽  
Vehicle Exhaust ◽  
Ongoing Research ◽  
Southwest Research Institute ◽  
Transmission Electron ◽  
Vital Interest

The Northern Front Range Air Quality Study concluded that for the Denver metropolitan area during 1996 and 1997, 55% of particles with an aerodynamic diameter 50% cutpoint of 2.5 μm (PM2.5) were attributable to motor vehicle exhaust particulates. The health effects of PM2.5 are currently unknown, but are under investigation. It is of vital interest to understand the chemistry, morphology, size distribution and microstructure of motor vehicle exhaust. The techniques of transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDS) appear to be well suited for the analysis of the microstructure, morphology and microchemical composition of particulate matter. Previous electron microscopy observations of particulate matter from a variety of sources have found that the chemical composition and crystal structure are characteristics of the source of the particles.As part of an ongoing research project into the health effects of motor vehicle particulate matter, Southwest Research Institute (SWRI) is performing chassis dynamometer tests of a variety of vehicles and collecting samples from the exhaust stream for analysis.

Light-Duty Motor Vehicle Exhaust Particulate Matter Measurement in the Denver, Colorado, Area

1999 ◽  
Vol 49 (9) ◽  
pp. 164-174 ◽  
Author(s):  
Steven H. Cadle ◽  
Patricia Mulawa ◽  
Eric C. Hunsanger ◽  
Ken Nelson ◽  
Ronald A. Ragazzi ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Motor Vehicle ◽  
Vehicle Exhaust ◽  
Light Duty ◽  
Exhaust Particulate

How Well Can mPEMS Measure Particulate Matter Motor Vehicle Exhaust Emissions?

2020 ◽  
Author(s):  
Diep Vu ◽  
Joseph Szente ◽  
Michael Loos ◽  
Matti Maricq
Keyword(s):  
Particulate Matter ◽  
Motor Vehicle ◽  
Exhaust Emissions ◽  
Vehicle Exhaust

scholarly journals Experimental Study on the Chemical Characterization of Atmospheric Aerosols in Wuhan, China

Atmosphere ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1393
Author(s):  
Qianjun Mao ◽  
Fangyuan Cheng ◽  
Min Chen
Keyword(s):  
Particulate Matter ◽  
Solar Energy ◽  
Motor Vehicle ◽  
Sampling Period ◽  
Atmospheric Particulate Matter ◽  
Energy Utilization ◽  
Atmospheric Environment ◽  
Exhaust Emission ◽  
Vehicle Exhaust ◽  
Atmospheric Particulate

Air pollution has a significant impact on the use of solar energy. On the one hand, the polluted environment directly reduces the intensity of solar radiation, on the other hand, pollution of the environment will also reduce the life of the equipment. Therefore, mastering the dynamic characteristics of the atmospheric environment has certain guiding significance for the efficient utilization of solar energy. In this study, the concentrations of particulate matter, CO, SO2 and NO2 from Tianyun big data website are analyzed to obtain the general characteristics of particulate pollution in Wuhan. At the same time, a long-period sampling atmospheric particulate matter sampler in the Huangjiahu area of Wuhan has been used, and experimental analysis of the physical and chemical characteristics of the samples has been obtained. The results show that both PM2.5 and PM10 show obvious seasonal changes, and the concentration of the four anions during the sampling period is SO42− > NO3− > Cl− > F−. During the sampling period, atmospheric particulate matter is mainly composed of organic matter, inorganic anions and oxides of more than 20 elements. The results of the enrichment factor analysis show that elements such as Br, Pb, Sb and Zn are the main enriched elements during the sampling period. The enrichment factors of these elements are 246.43 ± 168.81, 133.28 ± 115.03, 403.305 ± 396.18 and 90.67 ± 67.01, respectively. The high enrichment of these elements also reflects the contribution of motor vehicle exhaust emission during the sampling period. Traffic source is the main emission source in the Huangjiahu area of Wuhan. This research has a certain guiding significance for many industries such as energy utilization, environmental monitoring, health care, transportation and so on.

scholarly journals Suicidal Carbon Monoxide Poisoning Using Motor Vehicle Exhaust in an Open Space

2019 ◽  
Vol 28 (5) ◽  
pp. 490-492
Author(s):  
Czesław Żaba ◽  
Paweł Świderski ◽  
Karina Sommerfeld-Klatta ◽  
Zbigniew Żaba ◽  
Katarzyna Pluta-Hadas ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Open Space ◽  
Clinical Presentation ◽  
Motor Vehicle ◽  
Carbon Monoxide Poisoning ◽  
Exhaust System ◽  
Weather Conditions ◽  
Crime Scene ◽  
Vehicle Exhaust ◽  
Car Exhaust

Objectives: A rare case of a suicidal use of gases from the car exhaust system of the car petrol engine in an open space is presented. Clinical Presentation and Intervention: To verify suicidal intent of poisoning, an experimental reconstruction of the crime scene was performed. This demonstrated that appropriately long exposure to carbon monoxide with unfavorable weather conditions can cause acute carbon monoxide poisoning in an open space. Conclusions: This case was studied to observe the pattern of fatal carbon monoxide poisoning in an open space. This might be helpful for forensic medicine, emergency medicine, and occupational medicine.

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