UG 232 lab orientation FM 201 Flow Through piping networks Dept. - PowerPoint PPT Presentation

UG 232 lab orientation FM – 201 Flow Through piping networks Dept. of Chemical Engineering Indian Institute of technology, Bombay

Faculty Incharge : Prof. Supreet Saini  T eaching Assistants – • Anirudh Singh Chouhan • Siddharth maholia • Inderdip Shere  Staff member • Amit Shinde

Objectives  T o calculate Reynolds number and fanning friction factor using measured flow rate and pressure drop.  T o understand the effect of Reynolds number and roughness on friction factor.  T o calculate roughness parameter using calculated experimental fanning friction factor.

Experimental Setup

Diagram of the Appratus

Procedure  Open one of the pipe inlet and allows flow through it.  Make sure that there are no air bubbles in the tubes connected to the pressure gauge and taps, remove if any air bubbles present.  Wait for the flow to reach steady state.  Measure the corresponding flow rate reading and pressure drop reading.  If flow rate is more than 10 lpm (litre per minute) use flow meter 1 otherwise if flow rate is below 10 lpm then use flow meter 2.  Close the values slightly to change the flow rate and hence take 6 readings for a pipe.

Sample Observation table Readi Flow rate Flow rate Pressure drop Pressure drop Average Flow Average Pressure ng no (max) (Min) (max) (min) rate Bar Bar 1 2 3 4 5 6

Calculations

Graph to be drawn

Safety precautions  Never leave both the bypass of the pump and all the values of pipes closed while the pump is running.  Never use flow meter 2 when the flow is above 10 LPM.  Glass Pressure tabs should be connected carefully.