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Conductance is a measure of the ability of a fluid to pass through a screen. This property is determined by flowing 5W30 motor oil through a screen sample and then applying the pressure differential to a formula to calculate the conductance. Motor oil was selected because it oil-wets the screen and has a high viscosity. A large volume of motor oil is needed to allow equilibrium and to prevent large temperature changes.
Corrugated screens have up to 184 percent more surface area than conventional flat screens. Gravity forces the solids into the corrugated screen's troughs, thus allowing more fluid to pass through the top of the screen. With conventional flat screens, conductance is reduced as solids form a continuous bed that impedes fluid flow.
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