Results 11 to 20 of about 5,062,421 (261)

Investigation of the Rearrangement of Reactive–Inert Particulate Structures in a Single Channel of a Wall-Flow Filter [PDF]

open access: yesSeparations, 2022
Wall-flow filters are a standard component in exhaust gas aftertreatment and have become indispensable in vehicles. Ash and soot particles generated during engine combustion are deposited in diesel or gasoline particulate filters.
Julia R. D. Thieringer   +4 more
doaj   +5 more sources

Simulation of Dynamic Rearrangement Events in Wall-Flow Filters Applying Lattice Boltzmann Methods

open access: yesFluids, 2023
Wall-flow filters are applied in the exhaust treatment of internal combustion engines for the removal of particulate matter (PM). Over time, the pressure drop inside those filters increases due to the continuously introduced solid material, which forms ...
Nicolas Hafen   +3 more
doaj   +4 more sources

4D In-Situ Microscopy of Aerosol Filtration in a Wall Flow Filter [PDF]

open access: yesMaterials, 2020
The transient nature of the internal pore structure of particulate wall flow filters, caused by the continuous deposition of particulate matter, makes studying their flow and filtration characteristics challenging. In this article we present a new methodology and first experimental demonstration of time resolved in-situ synchrotron micro X-ray computed
Matthew P. Jones   +7 more
openaire   +5 more sources

On the Impact of Particulate Matter Distribution on Pressure Drop of Wall-Flow Particulate Filters

open access: yesApplied Sciences, 2017
Wall-flow particulate filters are a required exhaust aftertreatment system to abate particulate matter emissions and meet current and incoming regulations applying worldwide to new generations of diesel and gasoline internal combustion engines.
Vicente Bermúdez   +3 more
doaj   +4 more sources

Prediction Capabilities of a One-dimensional Wall-flow ‎Particulate Filter Model [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2022
This work is focused on the formulation of a numerical model for prediction of flow field inside a particulate filter. More specifically, a one-dimensional mathematical model of the gas flow in a particulate trap-cell is deduced and solved numerically ...
Andrea Impiombato   +3 more
doaj   +2 more sources

Simulation of Particulate Matter Structure Detachment from Surfaces of Wall-Flow Filters for Elevated Velocities Applying Lattice Boltzmann Methods

open access: yesFluids, 2023
Rearrangement events in wall-flow filters lead to the formation of specific deposition patterns, which affect a filter’s pressure drop, its loading capacity and the separation efficiency.
Nicolas Hafen   +3 more
doaj   +2 more sources

Catalytic Wall Flow Filters for Soot Abatement from Biomass Boilers

open access: yesChemical Engineering Transactions, 2016
In recent years rising costs of fossil fuels and, on the other hand, the availability of economic incentives and the development of advanced equipment solutions has made biomass combustion an attractive and efficient alternative for the production of ...
V. Palma   +5 more
doaj   +2 more sources

Measuring Velocity and Turbulent Diffusivity in Wall-Flow Filters Using Compressed Sensing Magnetic Resonance

open access: yesChemical Engineering Journal, 2019
Gas-phase compressed sensing magnetic resonance methods have been used to image gas flow velocity and turbulent diffusivity in wall-flow particulate filters.
A J Sederman, L F Gladden
exaly   +2 more sources

A study on the cell structure and the performances of wall-flow diesel particulate filter

open access: yesEnergy, 2012
As for the recent PM regulations, a diesel particulate filter (DPF) has been one of the important aftertreatment technologies. Although the square cell structure of DPF is a generally worldwide standard, several cell designs have been proposed to reduce the pressure loss due to the soot loading as well as the ash deposition in DPF.
Koji Tsuneyoshi, Kazuhiro Yamamoto
openaire   +2 more sources

Impact of Vein Wall Hyperelasticity and Blood Flow Turbulence on Hemodynamic Parameters in the Inferior Vena Cava with a Filter

open access: yesMicromachines
Inferior vena cava (IVC) filters are vital in preventing pulmonary embolism (PE) by trapping large blood clots, especially in patients unsuitable for anticoagulation.
Jafar Moradicheghamahi, Debkalpa Goswami
doaj   +3 more sources

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