Strona 2_redak - Instytut Agrofizyki im. Bohdana DobrzaÅskiego ...
Strona 2_redak - Instytut Agrofizyki im. Bohdana DobrzaÅskiego ...
Strona 2_redak - Instytut Agrofizyki im. Bohdana DobrzaÅskiego ...
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122<br />
Table 16.13. Mean values (±St. Dev.) of the friction coefficient µ of triticale grain variety Fidelio at<br />
the moisture content of 10-20% against stainless steel, galvanized steel and concrete B30 determined<br />
at the normal pressure of 20-60 kPa<br />
Moisture<br />
content (%)<br />
10<br />
12.5<br />
15<br />
17.5<br />
20<br />
Normal stress<br />
(kPa)<br />
20<br />
30<br />
40<br />
50<br />
60<br />
20<br />
30<br />
40<br />
50<br />
60<br />
20<br />
30<br />
40<br />
50<br />
60<br />
20<br />
30<br />
40<br />
50<br />
60<br />
20<br />
30<br />
40<br />
50<br />
60<br />
Coefficient of wall friction µ<br />
Stainless steel Galvanized steel Concrete B30<br />
0.181 ± 0.018 0.249 ± 0.009 0.473 ± 0.031<br />
0.180 ± 0.002 0.237 ± 0.017 0.448 ± 0.007<br />
0.189 ± 0.005 0.236 ± 0.004 0.439 ± 0.006<br />
0.173 ± 0.007 0.215 ± 0.005 0.439 ± 0.010<br />
0.176 ± 0.013 0.198 ± 0.001 0.427 ± 0.008<br />
0.223 ± 0.019 0.167 ± 0.014 0.344 ± 0.005<br />
0.244 ± 0.016 0.189 ± 0.005 0.401 ± 0.020<br />
0.245 ± 0.026 0.190 ± 0.009 0.416 ± 0.014<br />
0.247 ± 0.030 0.184 ± 0.007 0.413 ± 0.016<br />
0.281 ± 0.013 0.200 ± 0.007 0.407 ± 0.010<br />
0.296 ± 0.015 0.214 ± 0.018 0.522 ± 0.014<br />
0.322 ± 0.005 0.214 ± 0.003 0.547 ± 0.022<br />
0.300 ± 0.021 0.240 ± 0.023 0.559 ± 0.009<br />
0.306 ± 0.010 0.225 ± 0.002 0.561 ±0.008<br />
0.281 ± 0.004 0.265 ± 0.026 0.521 ± 0.018<br />
0.297 ± 0.015 0.240 ± 0.002 0.587 ± 0.021<br />
0.318 ± 0.005 0.240 ± 0.001 0.592 ± 0.016<br />
0.305 ± 0.008 0.270 ± 0.003 0.572 ± 0.011<br />
0.304 ± 0.005 0.290 ± 0.003 0.584 ± 0.008<br />
0.297 ± 0.007 0.250 ± 0.001 0.579 ± 0.004<br />
0.358 ± 0.023 0.281 ± 0.006 0.623 ± 0.010<br />
0.366 ± 0.017 0.306 ± 0.022 0.605 ± 0.015<br />
0.333 ± 0.013 0.308 ± 0.021 0.592 ± 0.015<br />
0.350 ± 0.004 0.350 ± 0.006 0.605 ± 0.023<br />
0.237 ± 0.013 0.323 ± 0.015 0.619 ± 0.030