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