Centrifugal Pumps

1. Front Matter

   Pages 1-36

   PDF

2. Fluid dynamic principles

   • Johann Friedrich Gülich

   Pages 1-38

3. Pump types and performance data

   • Johann Friedrich Gülich

   Pages 39-68

4. Pump hydraulics and physical concepts

   • Johann Friedrich Gülich

   Pages 69-144

5. Performance characteristics

   • Johann Friedrich Gülich

   Pages 145-186

6. Partload operation, impact of 3-D flow phenomena performance

   • Johann Friedrich Gülich

   Pages 187-258

7. Suction capability and cavitation

   • Johann Friedrich Gülich

   Pages 259-336

8. Design of the hydraulic components

   • Johann Friedrich Gülich

   Pages 337-438

9. Numerical flow calculations

   • Johann Friedrich Gülich

   Pages 439-506

10. Hydraulic forces

    • Johann Friedrich Gülich

    Pages 507-554

11. Noise and Vibrations

    • Johann Friedrich Gülich

    Pages 555-664

12. Operation of centrifugal pumps

    • Johann Friedrich Gülich

    Pages 665-714

13. Turbine operation, general characteristics

    • Johann Friedrich Gülich

    Pages 715-740

14. Influence of the medium on performance

    • Johann Friedrich Gülich

    Pages 741-808

15. Selection of materials exposed to high flow velocities

    • Johann Friedrich Gülich

    Pages 809-886

16. Pump selection and quality considerations

    • Johann Friedrich Gülich

    Pages 887-910

17. Back Matter

    Pages 912-912

    PDF

Life is linked to liquid transport, and so are vital segments of economy. Pumping devices – be it the human heart, a boiler feeder or the cooling-water pump of a motorcar – are always part of a more or less complex system where pump failure can lead to severe consequences. To select, operate or even design a pump, some understanding of the system is helpful, if not essential. Depending on the appli- tion, a centrifugal pump can be a simple device which could be built in a garage with a minimum of know-how – or a high-tech machine requiring advanced skills, sophisticated engineering and extensive testing. When attempting to describe the state-of-the-art in hydraulic engineering of centrifugal pumps, the focus is nec- sarily on the high-tech side rather than on less-demanding services even though these make up the majority of pump applications. Centrifugal pump technology involves a broad spectrum of flow phenomena which have a profound impact on design and operation through the achievedef- ciency, the stability of the head-capacity characteristic, vibration, noise, com- nent failure due to fatigue, as well as material damage caused by cavitation, - dro-abrasive wear or erosion corrosion. Operation and life cycle costs of pumping equipment depend to a large extent on how well these phenomena and the inter- tion of the pump with the system are understood.

• cavitation
• fluid flow
• hydraulic design
• hydraulic forces
• hydraulics
• material selection
• materials
• numerical flow calculations
• pump materials
• pump selection
• quality
• troubleshooting
• two-phase flow pumping
• vibrations

• Villeneuve, Switzerland

  Johann Friedrich Gülich

Dr.-Ing. Johann F. Gülich (1939), MS in Mechanical Engineering from the TU Hannover (Germany), PhD from the TU Darmstadt. Professional carreer: Project engineer in the nuclear power plant division of Siemens, Erlangen, Germany. Since 1966 with Sulzer Winterthur (Switzerland): Starting as development engineer in the nuclear reactor design; for 10 years head of the team “Thermohydraulics” responsible for the thermal and hydraulic design of steam generators and heat exchangers for nuclear power stations; for 23 years head of the team responsible for the hydraulic development of centrifugal pumps, during some years also responsible for the mechanical development group. Since retirement pump consultant. JF Gülich has published numerous contributions and holds several patents on centrifugal pumps and steam generators for nuclear power plants.

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