A5078627958- Catalytic Processes in Materials Science
- Vehicle emissions and performance
- Aerosol Filtration and Electrostatic Precipitation
- Advanced Combustion Engine Technologies
- Lubricants and Their Additives
- Gas Sensing Nanomaterials and Sensors
- Air Quality Monitoring and Forecasting
- Air Quality and Health Impacts
- Biodiesel Production and Applications
- Atmospheric chemistry and aerosols
- Cyclone Separators and Fluid Dynamics
- Advanced ceramic materials synthesis
- Diamond and Carbon-based Materials Research
- Spectroscopy and Laser Applications
- Catalysis and Hydrodesulfurization Studies
- RFID technology advancements
- Electron and X-Ray Spectroscopy Techniques
- Sensor Technology and Measurement Systems
- Heat and Mass Transfer in Porous Media
- Lattice Boltzmann Simulation Studies
- Recycling and utilization of industrial and municipal waste in materials production
- Ion-surface interactions and analysis
- Thermochemical Biomass Conversion Processes
- Catalysis and Oxidation Reactions
- Laser-Ablation Synthesis of Nanoparticles
CTS Corporation (United States)
2016-2019
CTS Corporation (Czechia)
2016-2019
Massachusetts Institute of Technology
2009-2018
Accurate knowledge of diesel particulate filter (DP F) loading is critical for robust and efficient ope ration the combined engine-exhaust aftertreatment system. Furthermore, upcoming on-board diagnostics regulations require technologies to evaluate statu s DPF. This work describes application radio frequency (RF) ‐ based sensing techniques accura tely measure DPF soot levels spatial distri bution accumulated material. A 1.9L GM turbo e ngine a with an RF-sensor were studied. Direct...
A detailed understanding of the climate and air quality impacts mobile-source emissions requires characterization intermediate-volatility organic compounds (IVOCs), relatively-low-vapor-pressure gas-phase species that may generate secondary aerosol with high yields. Due to challenges associated IVOC detection quantification, remain poorly understood at present. Here, we describe measurements magnitude composition from a medium-duty diesel engine. Measurements are made on an engine...
Diesel particulate filters (DPFs) have seen widespread use in on- and off-road applications as an effective means for meeting increasingly stringent particle emission regulations. Over time, incombustible material or ash, primarily derived from metallic additives the engine lubricant, accumulates DPF. Ash accumulation leads to increased flow restriction associated increase pressure-drop across filter, negatively impacting performance fuel economy eventually requiring periodic filter service...
The accumulation of soot and lubrication-derived ash particles in a diesel particulate filter (DPF) increases exhaust flow restriction negatively impacts engine efficiency. Previous studies have described the macroscopic phenomenon general effects on pressure drop. In order to enhance fundamental understanding, this study utilized novel apparatus, that dual beam scanning electron microscope (SEM) focused ion (FIB), investigate microscopic details DPF. Specifically, FIB provides minimally...
Lubricant-derived trace element emissions are the largest contributors to accumulation of incombustible ash in diesel particulate filters (DPF), eventually leading filter plugging and an increase engine fuel consumption. Particulate also pose adverse health effects focus increasingly stringent air quality regulations. To date, rates physical chemical properties lubricant-derived additive not well characterized, largely due difficulties associated with conducting measurements. This work...
The current CJ-4 oil specification places a limit on the oil’s sulfated ash content of 1.0% to reduce build-up lubricant-derived in diesel particulate filter (DPF). Lubricant additives, specifically detergents and anti-wear contribute most accumulation DPF, hence are studied with increasing interest optimization combined engine-oil-aftertreatment system. However, characteristics deposits found filter, which affected by number parameters, differ markedly from those ASTM-method defined ash. In...