Abstract In this research, CeO2 was chosen for the DOC catalyst. Moreover, a partial-flow DPF installed after DOC. The exhaust gas experiment conducted at 20% - 50% engine load varying 1000,1500, and 2000 rpm of speed. research results show that NOx reduced around 25% with systems higher load. On other hand, particulate matters decrease 65% systems. Furthermore, CO HC amount were substantially ...

Gravity-driven separators are broadly used in various engineering applications to remove particulate matters from gaseous fluids meet legislation demands. This study represents a detailed numerical investigation of two-phase cyclone separator using the Eulerian–Lagrangian gas flow method. The turbulence is modelled Reynolds stress model (RSM). technique has successfully predicted typical trends...

The paper deals with one of the methods for assessing anthropogenic impact operation ship power plants in port areas on environment. measurement mass concentration particulate matters (PM) open air was carried out during summer and winter eight points city that were selected depending conditions orographic characteristics area. Moreover, vessel traffic coastal waters assessed information number...

Air pollution has been becoming a necessary evil with rapid industrialization and urbanization around the world, after it results in kinds of human health problems, such as ophthalmic, respiratory and cardiovascular diseases (Brunekreef & Holgate, 2002; Giles et al., 2011; Gudmundsson, 2011; Jamrozik & Musk, 2011; Miller et al., 2007; Nandasena, 2010). The direst threat posted by air pollution ...

Twenty-three polychlorinated and perfluorinated compounds (PFCs) were investigated in water phase and particulate matters of 19 precipitation samples (18 snow samples and 1 rain sample) from different cities across eastern and central China collected in February 2010. The PFCs in samples of 9e precipitation events during more than half a year at 1 site in Tianjin and 6 successive samples during...

Atmospheric particulate matters were collected on quartz fibre filters for 24 hours with a low volume sampler from January 2014 to March 2014 at the Southeast Asian mega city (Dhaka, Bangladesh). Particulate matters samples were analysed for eleven trace metals with inductively coupled plasma mass spectrometer (ICP-MS) at Cà Foscari University of Venice, Italy. Trace metals were extracted from ...

A semi-empirical formula was recommended to analyze the deposition law of atmospheric particles in pipelines fresh air systems, where sizes particles, inlet velocity, and temperature, humidity on particulate matters were considered. The results showed when particle less than 1.0 ?m, rate decreased from increased sizes. When larger in-creased higher velocity resulted a greater rate. High or low ...