CALIBRATION OF VENTURIMETER
CALIBRATION OF VENTURIMETER
AIM: To
determine the co-efficient of discharge for a given venturimeter.
EQUIPMENTS AND COMPONENTS:
Venturimeter with pressure tapping at
the entrance and the throat installed in a horizontal pipeline.
U-tube mercury filled manometer to
measure the difference across the tapping. A constant steady supply of water
with a means of varying the flow vatt. Measuring tank and stop watch.
THEORY:
Venturimeter
is an instrument for measuring the quantity of liquid flowing through the pipe.
The meter in to forms consists of a short converging section and following a
throat and a diverging section the entrance and the exit diameter will be the
same as that of the pipeline to which it is filled. The function of the
converging section is to increase the velocity of the liquid and is co-related
with the flow vatt and u-tube manometer is connected to the tapping end that
are provided at the entrance.
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