Strona 2_redak - Instytut Agrofizyki im. Bohdana Dobrzańskiego ...

133
Table 16.23. Mean values (±St. Dev.) of the friction coefficient µ of rape seeds variety Licosmos at
the moisture content of 6-15% against stainless steel, galvanized steel and concrete B30 determined
at the normal pressure of 0.5-2.5 kPa
Moisture
content (%)
6
9
12
15
Normal stress
(kPa)
0.5
1.0
1.5
2.1
2.5
0.5
1.0
1.5
2.1
2.5
0.5
1.0
1.5
2.1
2.5
0.5
1.0
1.5
2.1
2.5
Coefficient of friction µ
Stainless steel Galvanized steel Concrete B30
0.279 ± 0.007 0.245 ± 0.008 0.351 ± 0.023
0.234 ± 0.006 0.242 ± 0.006 0.336 ± 0.018
0.237 ± 0.007 0.231 ± 0.012 0.294 ± 0.002
0.240 ± 0.006 0.232 ± 0.005 0.276 ± 0.017
0.237 ± 0.008 0.220 ± 0.007 0.289 ± 0.004
0.279 ± 0.007 0.245 ± 0.010 0.357 ± 0.040
0.275 ± 0.007 0.237 ± 0.011 0.314 ± 0.014
0.270 ± 0.002 0.227 ± 0.004 0.335 ± 0.028
0.267 ± 0.012 0.223 ± 0.005 0.302 ± 0.009
0.254 ± 0.002 0.211 ± 0.021 0.302 ± 0.009
0.300 ± 0.018 0.240 ± 0.007 0.308 ± 0.005
0.301 ± 0.019 0.243 ± 0.004 0.332 ± 0.005
0.289 ± 0.021 0.239 ± 0.009 0.335 ± 0.005
0.287 ± 0.015 0.228 ± 0.005 0.308 ± 0.005
0.298 ± 0.004 0.217 ± 0.002 0.335 ± 0.005
0.292 ± 0.010 0.240 ± 0.006 0.332 ± 0.005
0.278 ± 0.012 0.235 ± 0.014 0.314 ± 0.005
0.271 ± 0.017 0.237 ± 0.008 0.317 ± 0.005
0.264 ± 0.008 0.228 ± 0.008 0.317 ± 0.005
0.274 ± 0.011 0.215 ± 0.003 0.335 ± 0.011