Characterization of An Open-Pored Nickel Foam with Respect to Aerosol Filtration Efficiency by Means of Measurement and Simulation

Figures & data

FIG. 1. Scanning electron microscope (SEM) picture of real structure (a) and a tomography (b) of the inspected open-pored nickel foam.

Table 1 Material properties of the utilized nickel foam

Foam type	Material composition	Height of the single layer	Cell diameter dc	Link diameter dL
—	—	mm	μm	μm
Nickel foam	Ni	1.6	450 ± 45	56.5 ± 4.4

FIG. 2. Experimental setup for measurements of the filtration efficiency.

FIG. 3. Filtration efficiency measured for the nickel foam.

FIG. 4. Comparison of the measured and calculated filtration efficiencies for the investigated nickel foam.

FIG. 5. Comparison of the measured and calculated pressure drop for the investigated nickel foam.

FIG. 6. Tomography of the nickel foam shown in Figure 1b divided into 16 smaller models.

FIG. 7. Stepwise generation for the model of a nickel foam.

FIG. 8. Flow velocities computed for a generated model of the nickel foam (white) with a face velocity 0.055 m/s.

FIG. 9. Trajectories of spherical particles with diameters of 5 nm and 50 μm computed in the flow field shown in Figure 8.

FIG. 10. Simulated filtration efficiencies for 16 mm nickel foam with tomography cutouts and generated models. The face velocity is 0.055 m/s.

FIG. 11. Comparison of the measured, calculated and simulated filtration efficiencies for the investigated nickel foam.

FIG. 12. Comparison of the measured, calculated, and simulated pressure drop for the investigated nickel foam.