When a centrifugal pump works to the right of BEP (Best Efficiency Point) problems such as the level of net positive suction head
(NPSH) required increases, which may cause cavitation to occur.
Tissue adhesion of the suction head
to delicate tissues is a well-known problem, especially during forced suction, and can result in severe tissue damage [1, 2].
where [[theta].sub.s] is the saturated water content, [[theta].sub.i] is the initial water content, [K.sub.s] is the saturated hydraulic conductivity, [l.sub.f] is the length of the porous medium with infiltrated liquid (the wetting front depth), [v.sub.f] = [dl.sub.f]/dt is the wetting front velocity, [s.sub.f] = [P.sub.c]/[rho]g is the equilibrium suction head
, [P.sub.c] is capillary pressure, [rho] is the water density, g is the gravitational acceleration, and [h.sub.w] is the ponding height.
The new suction head
type Pelican consists of two parts - end piece and mouthpiece are clipped together and can easily be separated for cleaning purposes.
Once the pump is primed, pumping it will require adequate net positive suction head
(NPSH) to remain pumping without suction limitations.
Increase the suction head
Lower the fluid temperature Decrease the Net Positive Suction Head
, the soil capillary capacity (C) is the highest if the second derivative of the soil moisture content with respect to the suction head
In centrifugal pumps, the net positive suction head
is usually defined as in (1).
Net positive suction head
(NPSH) is the measure of suction pressure.
The brush roller pulls debris from between the carpet fibers so that it can get sucked up by the suction head
. Adjustable rollers can be raised or shut off on bare floors to protect the finish and avoid scattering debris.