Two phase mixing comparison, oil contamination comparison and manufacturing accuracy effect on calibration of slotted orifice meters
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In previous studies the slotted orifice plate has demonstrated superior performance characteristics to those of the standard orifice plate. In this study, these comparisons are investigated further. The response characteristics of the slotted orifice plate to the standard orifice plate and V-Cone for two-phase flows of water and air at various qualities, flow rates, and pressures are shown visually. The effect of oil as it flows through a slotted orifice plate and standard orifice plate are visually documented. The effect of manufacturing accuracy on the slotted orifice plates is investigated as to the effect on the coefficient of discharge, percent change in pressure, and Reynolds number. The slotted orifice plate mixes two-phase flow better than the standard orifice plate and V-Cone. There is a manufacturing effect on the slotted orifice plates; the larger the area of the slots, the larger the discharge coefficient.
Sparks, Sara A. (2004). Two phase mixing comparison, oil contamination comparison and manufacturing accuracy effect on calibration of slotted orifice meters. Master's thesis, Texas A&M University. Texas A&M University. Available electronically from