Particulate Emission Rates from In-Use High-Emitting Vehicles Recruited in Orange County, California

1997 ◽  
Vol 31 (12) ◽  
pp. 3405-3412 ◽  
Author(s):  
Steven H. Cadle ◽  
Patricia A. Mulawa ◽  
James Ball ◽  
Claudia Donase ◽  
Arnie Weibel ◽  
...  
Keyword(s):  
Orange County ◽  
Emission Rates ◽  
Particulate Emission

Particulate emission rates for open surfaces in Australian open cut black coal mines

2019 ◽  
Vol 232 ◽  
pp. 537-544
Author(s):  
Claire Richardson ◽  
Shannon Rutherford ◽  
Igor Agranovski
Keyword(s):  
Coal Mines ◽  
Emission Rates ◽  
Black Coal ◽  
Particulate Emission

scholarly journals Investigation Of Methanol Utilization In Ci Engines

2018 ◽  
Vol 235 ◽  
pp. 00036
Author(s):  
Ákos Bereczky ◽  
Kristóf Lukács ◽  
Zoraze Khan
Keyword(s):  
Combustion Process ◽  
Combustion Products ◽  
Experimental Results ◽  
Intake Manifold ◽  
Emission Rates ◽  
Particulate Emission ◽  
Unburned Hydrocarbon ◽  
Energy Ratios ◽  
Ci Engines ◽  
Co Emission

The decrease in the fossil fuel resources and more rigid emission standards make the necessity to look for new fuels and technologies. One of the possible fuels can be the different alcohols. The oxygen content of the alcohols can improve the combustion process and reduce the emission rates of incomplete combustion products. The blending methanol (M) and ethanol (E) with diesel fuel is limited by separation. This article shows the research results and analysis of two typical solutions. First are blends of stabilized rape seed methyl ester (RME) to prevent the phase separation. The tests are carried out on a conventional TDI engine (VW 1Z) at different speeds and loads. Experimental results indicate that the addition of 10% methanol to 80% Diesel and 30% of FAME blend increased the unburned hydrocarbon (THC) with 60%, decreased CO emission with near 4% and the particulate emission (PM) with near 30%, the NOx emissions were near the same. The other technology is the dual fuel method. In this case, different amount of methanol is injected into the intake manifold. The tests are carried out with a conventional DI engine (IVECO AIFO 8031) at constant speeds and different loads and energy ratios. Experimental results indicate that the increase of energy ratio of the methanol at full load decreased NOx emission with up to 60% and the particulate emission (PM) up to 90%, while the CO and THC emissions increased extremely mainly at part loads.

Near-Field and Far-Field Sampling of Aerosol Plumes to Evaluate Particulate Emission Rates From a Falling Particle Receiver During On-Sun Testing

2021 ◽  
Author(s):  
Andrew Glen ◽  
Darielle Dexheimer ◽  
Andres L. Sanchez ◽  
Clifford K. Ho ◽  
Swarup China ◽  
...  
Keyword(s):  
Size Distribution ◽  
Near Field ◽  
Measurement Techniques ◽  
Ambient Air ◽  
Industrial Applications ◽  
Aerosol Size Distribution ◽  
Far Field ◽  
Emission Rates ◽  
Particulate Emission ◽  
Field Instrumentation

Abstract High-temperature falling particle receivers are being investigated for next-generation concentrating solar power applications. Small sand-like particles are released into an open-cavity receiver and are irradiated by concentrated sunlight from a field of heliostats. The particles are heated to temperatures over 700 °C and can be stored to produce heat for electricity generation or industrial applications when needed. As the particles fall through the receiver, particles and particulate fragments in the form of aerosolized dust can be emitted from the aperture, which can lower thermal efficiency, increase costs of particle replacement, and pose a particulate matter (PM) inhalation risk. This paper describes sampling methods that were deployed during on-sun tests to record near-field (several meters) and far-field (tens to hundreds of meters) concentrations of aerosol particles within emitted plumes. The objective was to quantify the particulate emission rates and loss from the falling particle receiver in relation to OSHA and EPA National Ambient Air Quality Standards (NAAQS). Near-field instrumentation placed on the platform in proximity to the receiver aperture included several real-time aerosol size distribution and concentration measurement techniques, including a TSI Aerodynamic Particle Sizers (APS), TSI DustTraks, Handix Portable Optical Particle Spectrometers (POPS), Alphasense Optical Particle Counters (OPC), TSI Condensation Particle Counters (CPC), Cascade Particle Impactors, 3D-printed prototype tipping buckets, and meteorological instrumentation. Far-field particle sampling techniques utilized multiple tethered balloons located upwind and downwind of the particle receiver to measure the advected plume concentrations using a suite of airborne aerosol and meteorological instruments including POPS, CPCs, OPCs and cascade impactors. The combined aerosol size distribution for all these instruments spanned particle sizes from 0.02 μm – 500 μm. Results showed a strong influence of wind direction on particle emissions and concentration, with preliminary results showing representative concentrations below both the OSHA and NAAQS standards.

Particulate Emission Rates from Light-Duty Vehicles in the South Coast Air Quality Management District

1999 ◽  
Vol 33 (24) ◽  
pp. 4401-4406 ◽  
Author(s):  
Thomas D. Durbin ◽  
Joseph M. Norbeck ◽  
Matthew R. Smith ◽  
Timothy J. Truex
Keyword(s):  
Air Quality ◽  
Quality Management ◽  
South Coast ◽  
Emission Rates ◽  
Air Quality Management ◽  
The South ◽  
Particulate Emission ◽  
Light Duty ◽  
Light Duty Vehicles

Particulate emission rates of simple kerosene lamps

1995 ◽  
Vol 2 (2) ◽  
pp. 32-35 ◽  
Author(s):  
Stuart Schare ◽  
Kirk R. Smith
Keyword(s):  
Emission Rates ◽  
Particulate Emission

Particulate Emission Rates for Unpaved Shoulders along a Paved Road

1998 ◽  
Vol 48 (5) ◽  
pp. 398-407 ◽  
Author(s):  
H. Moosmüller ◽  
J. A. Gillies ◽  
C. F. Rogers ◽  
D. W. DuBois ◽  
J. C. Chow ◽  
...  
Keyword(s):  
Emission Rates ◽  
Particulate Emission ◽  
Paved Road
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