Which is more efficient Venturimeter and Orificemeter?

Which is more efficient Venturimeter and Orificemeter?

The pressure loss in venturi meter is 10\% while in the orifice meter the pressure loss is 50-60\%. The coefficient of discharge in the venturi meter is 0.98 while in orifice meter it is 0.6.

Which of the following is the disadvantage of rotameter?

Disadvantages of rotameter: It is difficult to handle the glass tube type. It must be mounted vertically. It is not suitable for pulsating services. Generally it is limited to small pipe services.

What is the advantage which prefers Venturi over orifice?

Advantages of Venturi mater over Orifice meter : Venturi meter is used for operating in-compressible fluids. Venturi meter can handle large range of flow rates of fluid than that of orifice meter. Turn down ratio is 10 : 1. Co-efficient of discharge is relatively high 0.98.

What is the significance of Venacontracta in design of orifice and venturi meter?

The reason for the phenomenon vena contracta is that the fluid streamline cannot abruptly change direction, streamlines are unable to closely follow the sharp angles in orifice, nozzle, and pipe. When fluid passes through the orifice, the gradual contraction of fluid takes place.

What are the advantages Venturi over orifice?

Are Venturi meters accurate?

Accuracy of +/-1.0 to +/-2.0 percent of actual rate of flow down to approximately 125,000 pipe Reynolds number (Rd). Head loss ranging from eight to 14 percent of differential, depending on the beta ratio of the meter.

What are the merits and demerits of Venturi meter over orifice meter?

Venturi meter:

• Less chance of getting stuck with sediment.
• The discharge coefficient is high.
• Its behaviour can be predicted perfectly.
• It can be installed vertically, horizontally, inclined.
• They are more precise and can be used for a wide range of flows.
• About 90\% of the pressure drop can be recovered.

Where do we use orifice meter?

Applications of Orifice Meter

• It is used to measure the flow rate of fluids in their single state (i.e. gaseous state or liquid state).
• It can also be used to measure the flow rate of fluids in a mixed state (both gaseous and liquid states) such as, wet steam, or natural gas with water.

What are the advantages of Venturi meter?

Advantages of venturi meter: Its behaviour can be predicted perfectly. It can be installed vertically, horizontally, inclined. They are more precise and can be used for a wide range of flows. About 90\% of the pressure drop can be recovered.

What are the advantages and disadvantages of orifice plate?

Advantages and disadvantages of orifice plate Simple in construction, the standards for construction and calibration are readily available. They are cheap; their price does not increase dramatically with size. Easy to install and remove. They are efficient and reliable for many years.

What is the advantage a Venturi tube has over the orifice plate when used to meter the flow of fluids?

Advantages of venturi meter: The discharge coefficient is high. Its behaviour can be predicted perfectly. It can be installed vertically, horizontally, inclined. They are more precise and can be used for a wide range of flows.