Analisis Perbandingan Tingkat Ketelitian Pipa Venturi Dan Pelat Orifice Dalam Menghitung Laju Aliran Fluida
DOI:
https://doi.org/10.54706/senastindo.v7.2025.430Keywords:
Fluid flow rate, Venturi tube, Orifice plateAbstract
This study compares the accuracy of Venturi tubes and orifice plates in measuring water flow rates using the H408 Fluid Friction Apparatus. Tests were conducted with eleven variations in flowrate between 0.0002–0.000284 m³/s, and pressure differences were measured using a piezometer. The results show that the Venturi tube has an average deviation of 1%, while the orifice plate has a 7% deviation from the valid flowrate value. The Reynolds number values for both devices indicate turbulent flow (Re > 4,000). The Venturi tube has a higher accuracy because its gradually narrowing and widening shape minimizes pressure loss, while the orifice plate experiences greater pressure loss due to sudden changes in cross-section. Overall, the Venturi tube is more precise but expensive, while the orifice plate is more economical and easier to install if properly calibrated
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