Section E -- Paper Stock
E-3 Friction Loss of Pulp Suspensions in Pipe Appendix A
APPENDIX A
When metric (SI) units are utilized, the following replace the corresponding equations in the main text.
Vmax=K'Ca(m/s)
where K' = numerical coefficient (constant for a given pulp), obtained from Table I or IA,
C = consistency (oven-dried, expressed as a percentage, not decimally), and
o = exponent (constant for a given pulp), obtained from Table I or IA.
Ä H/L = F K Va Cb Dy (m/lOOm), where F = factor to correct for temperature, pipe
roughness, pulp type, freeness, or safety factor (refer to Appendix D),
K numerical coefficient (constant for a given pulp), obtained from Table II or hA,
V = bulk velocity (m/s),
C = consistency (oven-dried, expressed as a percentage, not decimally),
D = pipe inside diameter (mm), and
a, b, y = exponents (constant for a given pulp),
obtained from Table II or IIA.
VW = 1.22 C1.40 (m/s),
where C = consistency (oven-dried, expressed
percentage, not decimally).
(Ä H/L)w = 264 V1.75 D-1.25 (m/lOOm),
where V = bulk velocity (m/s), and as a
D=Pipe inside diameter (mm),
H=K V12/2g (m),
Where K=loss coefficient for a given fitting,
V = inlet velocity (m/s), and
g = acceleration due to gravity (9.81 m/s2).