online_pump_pipe_system:  Operating discharge and head in a pump-pipe system
Definition sketch of a pump-pipe system
  
System head-discharge relation:
hp = a + bQ2
 Pump head-discharge relation:
H = c - dQ2

INPUT DATA: [How to use] [Table of loss coefficients]

Select:  

Pipe diameter D :    
   
        
Pipe length L :    
   

 Friction factor f :    

Elevation E1 :    
   
        

Elevation E2 :    
   
 Entrance loss coefficient Ke :    
   [Leave blank to set default Ke = 0.5]
 Exit loss coefficient KE :    
   [Leave blank to set default KE = 1]
 Sum of bend loss coefficient(s) [zero or more bends] ∑Kb :    
Select type of pump head-discharge relation H vs Q:    

• If type (of H vs Q) = 1, enter c and d  in   H = c - dQ2:

c :    
   
     

d :    
   

• Else, if type (of H vs Q) = 2, enter N and H and Q arrays below:

Number of N  values in pump head-discharge relation H vs Q :    
   

N  paired values of H and Q (separate each value with a comma; string length
75 characters, maximum 150).

H :    

Q :    

OUTPUT:

The system operating point is at the intersection of system and pump head-discharge relations.
Type of head-discharge relation: 0

Operating discharge:

Q =  0  

Operating head:

h =  0  

[Click on figure to expand]

Pump on Wikipedia


Sample
Input-Output
            

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