1. SAMPLE SLIDES OF THE 1-DAY SEMINAR FOR PUMP USERS
As you will notice there are few words on these slides, your trainer will provide you with his experience which will make these images come alive providing you with the opportunity to reflect and ask questions, the more the better.
All of the presentation slides are available in a binder supplied with the seminar.

2. Pump systems

3. A BRIEF HISTORY

6. Pressure is independent of the shape of the reservoirs

8. Low pressure helps to suspend the fluid

9. A pump system acts as a reverse siphon

10. Demo for low pressure at the high point of a piping system

11. The energy required of the pump

12. Specific energy or head

13. The total head or total specific energy required of the pump

14. Pump performance curves

15. Vapor pressure

16. Experiment to boil water at room temperature

17. Operating principle of a centrifugal pump

18. Section of a centrifugal pump

19. Performance curves

20. NPSH depends on:
The elevation of the surface of the suction tank
The pressure in the suction tank
The friction loss in the suction line
The vapor pressure of the fluid at the operating temperature

21. Selecting the right impeller diameter

22. Measurements on demo system

23. 3. Evaluate these situations in terms of good, medium or poor?
Ans: _____
Ans : _____
Ans : _____

24. 4. Give your opinion on the piping layout at the pump suction in terms of good, medium or poor?
Ans : _____
Ans : _____

25. SOLUTION TO THE ELBOW TOO CLOSE TO THE PUMP SUCTION PROBLEM

26. USING AN EXCENTRIC ELBOW

27. Pumps in parallel - Instability

28. Minimum submergence of the pump suction piping

29. The effect of air (or gas) entrainment in the pump suction

30. Causes and problems associated with pump systems
• Excessive vibration causing damage to the impeller due to:
- cavitation

31. Causes and problems associated with pump systems
• NPSH or low pressure at the inlet

32. Opportunities with higher return
Opportunities in electrical energy reduction
Possible decrease in electrical consumption 1
Winning conditions
1. Replace a standard motor with a high efficiency motor
Replace a standard efficiency motor with one that meets or surpasses the NEMA Premium standard
Typically 1.5 to 5% and as much as 8%
When the motors are defective or at the end of their useful life or when a motor must be replaced to accommodate a VFD.

33. High efficiency motors

34. Opportunities with higher return
Opportunities in electrical energy reduction
Possible decrease in electrical consumption 1
Winning conditions
2. Install a variable frequency drive (VFD)
A VFD can adjust the speed of a motor in response to a variable demand avoiding the throttling of control valves or the opening of recirculation control valves and the energy losses incurred.
Typically 12 to 15% and as much as 27%
Ideal solution when the flow varies between 40 and 60%