Dossier: Dynamics of Evolving Fluid Interfaces - DEFI Gathering Physico-Chemical and Flow Properties
Open Access

Table 2

Summary of the preliminary tests conducted on two batches of the graphite dispersions.

Batch A B
Graphite supplier Sky Spring Inc. Sigma Aldrich
Concentration 5 g/L + 0.1 g/L NaC 10 g/L + 0.2 g/L NaC
Average size of the particles 1 μm 20 μm
Height “H” of the channel 383 μm 371 μm
Height “h” of the gap 110 μm 132 μm
Pin − Pout 10 bar 5 bar
Flow rate 13 L/h 10.2 L/h
Maximum average velocity “u0 32.8 m/s 21.5 m/s
Cavitation number “σ 0.18 0.43
Number of passes 25 380 and 800
Effective cavitating time lived by the particles 1 ms 20 ms and 42 ms
Centrifugation before TEM observation of the supernatant 4000 rpm – 45 min 1500 rpm – 45 min

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