However, as the oil/water ratio increases, more
and more sand particles are separated at the
second hydrocyclone.
e) Small particles are more sensitive to the changes
of parameters, including inlet velocity, oil/water
ratio and the number of hydrocyclones.
f) According to dimensional analysis, the separation
efficiency is a function of the Reynolds number
and Stokes number. When the Reynolds number
varies between 1.0×104
and 2.5×104
, there is a
reasonable fit between experimental values and
the calculated ones using regressed equation.