1. Flow Measurement

2. Overview
Basics
Measuring Methods & Its Application
Comparison

3. Primary Basic Accuracy Full Scale Accuracy Rate Accuracy Rangability
Turndown
Incompressible – Compressible Flow
ACFM
SCFM

4. Full Scale Accuracy

5. Rate Accuracy

6. Measuring Methods Head Type Flowmeters Mechanical Flowmeters
Electronic Flowmeters
Mass Flowmeters

7. Head Type Flowmeters
Basic
gh+v2/2+p/ρ= Constant

8. Different Type of Head Type Flowmeters
Orifice Plate
Venturi
Flow Nozzle
Pitot Tube
Elbow

9. Orifice Plate
Basic Equation :V=k*(h/D)0.5

10. Orifice for High Viscose Liquids

11. Orifice Service: Clean Liquids, Gases Steam,(no slurries or corrosive)
Scale: Square Root
Accuracy: 1% Full Scale
Permanent Pressure Loss: High
Cost: Low

12. Venturi & Flow Nozzle

13. Flow Nozzle Service: Liquids, Gases, Steam, High Velocity Flows
Scale: Square Root
Accuracy: 1% Full Scale
Rangability: 3:1
Permanent Pressure Loss: High
Cost: High

14. Venturi Service: Clean Liquids, Gases Steam Slurries and Dirty Fluids
Scale: Square Root
Accuracy: 1% Full Scale
Rangability: 3:1
Permanent Pressure Loss: Low
Cost: High

15. Pitot Tube

17. Averaging Pitot Tube

18. Variable Area Meters

23. Mechanical Flowmeters

25. Turbine Flowmeters

26. Turbine Meters

27. Rotary Flowmeters

28. Electronic Flowmeters

29. Vortex Flowmeters

31. Ultrasonic Flowmeters

32. Custody Transfer

33. Mass Flowmeters

34. Coriolis Flowmeters

35. Coriolis Flowmeters

36. Thermal Mass Flowmeters