Visualization and pressure distribution of gas-liquid flow in ¾ inch plexyglass pipe diameter with the slope orientation upward, horizontal and downward

Mechanical Engineering Department, Faculty of Engineering, Universitas Sriwijaya, Inderalaya Ogan Ilir, Indonesia

^* Corresponding author: dewipuspitasari@unsri.ac.id

Abstract

The flowing phase in the pipe is affecting on the continuity of fluid transport process, this is due to the interaction when the fluid mixture flowing at a certain superficial velocity. Therefore it will be studied the distribution of pressure and flow pattern of a transparent pipe (plexiglass) ¾ inches, and its influence on the orientation of the pipe 10°, 5°, 0°, -5o and -10° by the experimental equipment. The research was carried out experimentally with the water flow 10 - 20 lpm and air flow 5 - 15 lpm. Results showed the flow pattern was produced on every slope of the pipe is a bubble, elongated bubble, plug, plug-slug transition, plug bubble, bubble slug, slug, stratified wavy and stratified with mixture interfaces. On the upward slope of the bubble flow patterns likely to appear more and result the highest pressure of 1690 N/m2 on Jmix = 9.3 m/s, on the horizontal position bubble slug flow pattern that often appears with the highest pressure drop of 593 N/m² on Jmix = 8.23 m/s, while the downward slope of the wavy stratified flow pattern likely to appear more with the highest pressure drop of 685 N/m² on Jmix = 5.88 m/s.