Transcript of orifice flow meter
- 1. Introduction Presented By: Syed Misbah Ullah M13-CE53
- 2. Orifice flow meter Table of contents Applications Advantages
Disadvantages
- 3. Orifice flow meter
- 4. Definition A device which is used to measure flow rate It is
conduit or restriction to create pressure drop. Used for all
fluids
- 5. Laboratory pic of Orifice meter
- 6. Applications It is used for close system An orifice plate
can be use to measure the flow of Gases Liquids
- 7. Applications Gases:- Small dia orifice plate is used for
gases because Gases are compressible fluid
- 8. Applications Liquids:- Large dia Orifice Plate is used for
liquids Because liquids are incompressible
- 9. Applications animation
- 10. Advantages Simplest Structure. Relatively Cheap.
- 11. Advantages Occupies less space and installation is
easy.
- 12. Advantages For fluids containing solid particles an
eccentric or segmental orifice can be used.
- 13. Advantages Measuring range can be changed easily
- 14. Advantages Flow rate is proportional to pressure drop = Q=
Flow rate K= A constant value, which is determined by orifice size
and types of the fluid del= Change P= differential pressure across
the orifice plate
- 15. Disadvantages Pressure recovery is poor, thus resulting
power loss is more. It maximizes form friction (Friction within the
layers of fluids) Value of Coefficient of discharge is less. It's
value is 0.62 to 0.68
- 16. Disadvantages Coefficient of discharge CD= =0.62 to 0.68
(Which mean high losses) Area of vena contracta has to be
calculated
- 17. Disadvantages In gas applications in order to be accurate,
it requires constant Pressure temperature
- 18. Conclusion o flow sensor which is used throughout the World
is the Orifice flow meter due to Its simple structure, Easy to
install, and Inexpensive nature
- 19. Syed Misbah Ullah Mob=+923068520193 Institute of Chemical
Engineering & Technology Punjab University Lahore