Calculate the arithmetic mean diameter D g for the -4- to + 200-mesh fractions of the material
Question:
Calculate the arithmetic mean diameter D̅g for the -4- to + 200-mesh fractions of the material analyzed in Table 28.1. How does D̅g differ qualitatively from the volume mean diameter D̅v?
Table 28.1
Transcribed Image Text:
TABLE 28.1 Screen analysis Mesh 468WM功循环8608129M 35 65 Pan Screen opening D. mum 3.327 2.362 1.651 1.168 0.833 0.589 0417 0.295 0.208 0.147 0.104 0.074 Mass fraction retained, x 0.0000 0.0251 0.1250 0.3207 0.2570 0.1590 0.0538 0.0210 0.0102 0.0077 0.0058 0.0041 0.0031 0.0075 Average particle diameter in increment, D, mm pis 4.013 2.845 2.007 1.409 1.001 0.711 0.503 0.356 0.252 0.178 0.126 0.089 0.037 Cumulative fraction smaller than D 1.0000 0.9749 0.8499 0.5292 0.2722 0.1132 0.0594 0.0384 0.0282 0.0205 0.0147 0.0106 0.0075 0.0000
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Related Book For
Unit Operations Of Chemical Engineering
ISBN: 9780072848236
7th Edition
Authors: Warren McCabe, Julian Smith, Peter Harriott
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