Characteristic Of Fluid in Circular Pipe with 8mm diameter and Equilateral Triangle with 8mm on Pressure Drop Testing Device

This study discusses the characteristics of fluid flow in pipes with circular and triangular cross-sections, which are widely used in industrial piping systems, particularly in relation to the pressure drop phenomenon due to differences in cross-sectional geometry. The difference in pipe cross-section shapes can affect the flow pattern, Reynolds number, and the magnitude of the pressure drop. However, a comparison of flow characteristics between circular pipes and triangular pipes with comparable hydraulic sizes still needs to be investigated experimentally. This study aims to analyze the effect of flow rate variations on the Reynolds number and pressure drop, as well as to compare the fluid flow characteristics in 8 mm diameter circular pipes and 8 mm equilateral triangular pipes. The method used is an experiment using a pressure drop test apparatus. The fluid is flown at certain flow rate variations, and then the inlet and outlet pressures of the pipe are measured. The obtained data are used to calculate the flow velocity, Reynolds number, and pressure drop in each cross-section. The research results indicate that an increase in the Reynolds number leads to a rise in pressure drop in both types of pipes. Triangular pipes produce a higher pressure drop compared to circular pipes under the same flow conditions, due to more complex velocity distribution and wall friction. This study contributes to the selection of efficient pipe cross-section designs in fluid flow systems