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SPECIFIC.XLSSpecific surface area per unit volume from a size distributionwith cake resistance during filtration via Kozeny-Carman

INPUTS: ** SECTION FOR SPECIFIC RESISTANCE: **** Solid density: 2650 kg/m^3 **** Cake concentration: 0.38 v/v **

Particle Cumul've ** Topsize Bottom Average Mass Mass fract'nsize mass ** of of size fraction over

undersize ** grade grade mid point(um) (%) ** (um) (um) (um) (-) (1/um)

88.1 100 ** 102.1 88.1 95.1 0 076 99.7 ** 88.1 76 82.05 0.003 3.656E-05

65.6 98.8 ** 76 65.6 70.8 0.009 0.000127156.6 97.2 ** 65.6 56.6 61.1 0.016 0.0002619

48.8 94.5 ** 56.6 48.8 52.7 0.027 0.000512342.1 90.7 ** 48.8 42.1 45.45 0.038 0.000836136.3 85.6 ** 42.1 36.3 39.2 0.051 0.00130131.3 79.1 ** 36.3 31.3 33.8 0.065 0.0019231

27 71.5 ** 31.3 27 29.15 0.076 0.002607223.3 63.6 ** 27 23.3 25.15 0.079 0.003141220.1 55.9 ** 23.3 20.1 21.7 0.077 0.003548417.4 49.2 ** 20.1 17.4 18.75 0.067 0.0035733

15 43 ** 17.4 15 16.2 0.062 0.003827212.9 36.6 ** 15 12.9 13.95 0.064 0.0045878

11.1 29.9 ** 12.9 11.1 12 0.067 0.00558339.6 24.3 ** 11.1 9.6 10.35 0.056 0.00541068.3 19.7 ** 9.6 8.3 8.95 0.046 0.00513977.2 15.9 ** 8.3 7.2 7.75 0.038 0.00490326.2 12.6 ** 7.2 6.2 6.7 0.033 0.00492545.3 9.2 ** 6.2 5.3 5.75 0.034 0.0059134.6 6.3 ** 5.3 4.6 4.95 0.029 0.0058586

4 3.9 ** 4.6 4 4.3 0.024 0.00558143.4 2 ** 4 3.4 3.7 0.019 0.0051351

3 1 ** 3.4 3 3.2 0.01 0.003125

2.6 0.2 ** 3 2.6 2.8 0.008 0.00285712.2 0 ** 2.6 2.2 2.4 0.002 0.0008333

** ** ** ---------0.081549

CALCULATED VALUES:SPECIFIC SURFACE IS: 6 times 0.081549 1/microns(ie assuming spheres) = 489293.85 1/metres

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Sauter mean diameter: 12.3 micronsPermeability (by K & C): 1.379E-12 square metresSpecific resistance: 720231606 m/kg

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