SCR-on-Filter devices (SCRF), where an SCR catalyst is coated over a DPF: These substrates require even larger porosity of 60-65% and MPS of around 15-25 µm [5686] to accommodate high SCR washcoat loadings in excess of 100 g/dm3. This type of large porosity filters were first ...
A lower sucrose proportion in the precursor mixture led to a material with a lower amount of “wide” micropores (width around 1 nm according to PSD, Figure 3A), while for the material with the highest sucrose content, the peak centred at around 1 nm disappeared from the PSD curve, and...
Figure 2. Schematic of the computational domain. The 2D generatrix plane rotates around the bottom axis to compose the volumetric domain. 2.2. Flow Model The flow regime was assumed to be turbulent at the inlet of the tube, and modeled by a two-equations Reynolds-Average Navier–Stokes model...
A preliminary analysis was briefly performed in order to corroborate the assumption of steady flow through the entire domain. According to the literature, turbulence may arise as a result of the flow passing around the last part of the substrate walls, or because of the flow behaving as a jet...
The combustion temperature is around 825 °C and sand is used as the bottom bed. Eucalyptus bark and small amounts of knots, which are organic rejects produced from the pulp screening process, were used as fuel. A batch composed of equal amounts of the samples collected each day was ...
Figure 2. Schematic of the computational domain. The 2D generatrix plane rotates around the bottom axis to compose the volumetric domain. 2.2. Flow Model The flow regime was assumed to be turbulent at the inlet of the tube, and modeled by a two-equations Reynolds-Average Navier–Stokes model...
Figure 2. Schematic of the computational domain. The 2D generatrix plane rotates around the bottom axis to compose the volumetric domain. 2.2. Flow Model The flow regime was assumed to be turbulent at the inlet of the tube, and modeled by a two-equations Reynolds-Average Navier–Stokes model...