Pumping system hydraulic characteristics:System curves

System curves

Most systems have a combination of static and friction head and the system curves for two cases are shown in Figures 2.4 and 2.5. The ratio of static to friction head over the operating range influences the benefits achievable from variable speed drives (see Section 4.2.2.2) Static head is a characteristic of the specific installation and reducing

VARIABLE SPEED PUMPING-0710

this head, where this is possible, generally helps both the cost of the instal­lation and the cost of pumping the liquid. Friction head losses must be minimized to reduce pumping cost, but after eliminating unnecessary pipe fittings and length, further reduction in friction head will require larger diameter pipes, which adds to installation cost.

Related posts:

Case studies:VSD installation and commissioning Borehole pump
Compressed Air Transmission and Treatment:Breathing apparatus standards
High pressure:Lock hoppers
Operating problems:Rotary valves and Flow control
Troubleshooting and material flow problems:With change of distance.
Fine material:Dense phase conveying of cement
Pipeline scaling parameters:Vertical pipelines
Application notes: Speed control ,Actuator synchronisation.
Air treatment:Stages of air treatment,Filters,Air dryers and Lubricators.
Air Compressors, Air Treatment and Pressure Regulation:air treatment
BASICCONCEPTS OF THE RMODYNAMICS:FORMS OF ENERGY
SUMMARY OF THE FIRST LAW OF THERMODYNAMICS
ENTROPY:ENTROPY CHANGE OF PURE SUBSTANCES
POWER AND REFRIGER A TION CYCLES: THE IDEAL CYCLE FOR SPARK-IGNITION ENGINES
RANKINE CYCLE: THE IDEAL CYCLE FOR VAPOR POWER CYCLES

Leave a comment

Your email address will not be published. Required fields are marked *