Venturi Meter Questions

Ideal for use in heat ventilation air cond.

Nozzle cutting plasma. The venturi meter can handle large range of flow rates of fluid than the orifice meter but once the venturi meter is installed the range of flow rates it can handle becomes fixed. Its accuracy for a wide range of instruments is about 05. The air of velocity 15 ms and of density 13 kgm 3 is entering the venturi tube placed in the horizontal position from the left.

Diameter throat is installed in a 6 in. Hvac applications or air to furnaces and boilers and for liquids containing particles and slurries. The pressure at the entrance to the meter is gauge and it is undesirable that the pressure should at any point fall below absolute.

When the flow goes through the contraction it must speed up and so the pressure must drop. According to the factory manual the coefficient of discharge is 097. In the orifice meter the orifice plates can be easily removed and changed with a different orifice plate which contains different bore size or arrangement.

The manometer measures a differential pressure of 5 inches of mercury. A venturi meter with a 3 in. Venturi meter is a device in which pressure energy is converted into kinetic energy and it is used for measuring the rate of flow of liquid through pipes.

The radius of the thin part of the tube is 05 cm. A venturi meter with a 6 inch throat is placed on a water line that has an 8 inch outer diameter. By measuring the two pressures engineers can directly calculate the velocity of the fluid.

It works on the basic principle of bernoullis equation. Knowing the pipe diameter this velocity can be. What is a venturi meter.

Assuming that for the meter is 096 find the maximum flowfor which it may be used. After attaching a manometer to help measure the flow rate through the pipe. Here is the relevant segment from the reference manual which describes the variables here and to analyze the venturi meter we can apply the bernoulli equation.

Inside the pipe pressure difference is created by reducing the cross sectional area of the f. The radius of the wide part of the tube is 10 cm. A venturi meter is basically a constriction or reduction in area and it enables us to measure flow rate in pipes by observing the pressure difference at the throat.

A venturi meter is a device that allows flow rates through pipes to be calculated by measuring the difference in pressure created by a contraction in a pipe. What is venturi effect. The venturi flow meter should always be used for turbulent flow.