Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 9 of 9 for “"PM emission"”.
-
Performance and Total PM Emission Factor Evaluation of Expendable Abrasives
… widely used methods of surface preparation. Air emissions from this process include particulate matter (PM) and metals. Spent abrasive generated from this process may be hazardous in nature. With increasing concern on health effects due to silica emissions from sand, use of alternative materials …
-
Assessment of the factors influencing PN emission in a DISI engine under cold-start condition
… a significant drawback in particulate matter (PM) emission: the PM emission of DISI engines is at least an order of magnitude higher than that of PFI engines. The objective of this study is to investigate PM emission in DISI engines, mainly focusing on particulate number (PN) emission. The …
-
Towards Sustainable Braking: Effects of Alternative Ingredients on the Tribological Properties of Friction Materials
… increasing attention: their particulate matter emission. Indeed, brake systems are one of the most relevant sources of non-exhaust traffic-related emission PM. These emissions have been shown to negatively affect both the environment and the human health, urging authorities to take legislative …
-
Combustion Visualization And Particulate Matter Emission Of A Gdi Engine By Using Gasoline And E85
… increase engine efficiency as well as to reduce emission, optimizing combustion is always the challenge in research and product development. Gasoline direct injection (GDI) engines have been popularized due to its higher power density, fuel efficiency, and the possibility for advanced engine …
-
Growth and characterization of mid-infrared phosphide-based semiconductor diode lasers
… laser emitting at mid-infrared wavelength (2~5 pm) is an ideal light source for petrochemical or industrial-important gas sensing. Antimony-based III-V compound semiconductor material is the most prominent pseudomorphic epitaxy candidate for this application. However, phosphide-based material …
-
Characterization, Speciation, and Source Apportionment of Particles inside and from the Exhaust of Public Transit Buses Fueled With Alternative Fuels
… different idling conditions. The results of the PM emission analysis showed that the PM mean value of emission is dependent on the engine operation conditions and fuel type. It is found that lubricant oil, PM ash content, and storage tanks are the major sources of elemental concentrations in the …
-
Particulate matter emissions from a DISI engine under cold-fast-idle conditions for ethanol-gasoline blends
… brake-specific fuel consumption and better emission control, engineers developed the Direct Injection Spark Ignition (DISI) engine. DISI engines combine the specific higher output of the spark ignition engine, with the better efficiency of the compression ignition engine at part load. …
-
Characterization of carbonaceous aerosols from biofuel combustion: emissions and climate relevant properties
… responsible for nearly 20% of primary BC and OC emissions, but this source is relatively unstudied. Both emissions and optical properties (especially absorption) of carbonaceous aerosols from biofuel combustion need to be better characterized to estimate climate impact of biofuel combustion in …
-
Environmental assessment of global site-specific industrial air pollution
… an in-depth analysis of global industrial air emissions and resulting human health impacts from nearly all global fossil power plants, steel mills, oil refineries and cement plants individually. Thus, detailed inventories are developed that link the specific technologies in use at more than 125 …