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QAP FOR PERFORMANCE TEST

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9. Test Liquid
  Test shall be carried out using clean cold water as the test fluid. The characteristics of this medium is given in the following table
  Characteristics
Unit
Max
  Temperature
0C
40
  Kinematic Viscosity
m2/s
1.75x10-6
  Density
kg/m3
1050
  Non- absorbent free oil content
kg/m3
2.5
  Dissolved solid content
kg/m3
50
 
 
10. Test Speed
 Test will be carried out within the range of 50% to 120% of the specified speed of rotation to establish
  Capacity, Q
  Rated Head, H
  Power Absorbed, kW
  Pump Efficiency

It should be recognized, however, that when the test speed is lower than 20% of the rated speed, efficiency may be adversely affected due to lower Reynold’s number, higher relative mechanical losses, etc.
 
 

 

11. Test Reading

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    The following readings shall be taken during the test for each test point:
      Suction pressure
      Delivery pressure
      Speed of rotation
      Flow
      Power input to the electric motor

    In addition to the above hydraulic parameters the following records of mechanical performance shall be noted with pump operating close to the rated duty of the pump:

      Bearing Temperature
      Vibration level at the bearings
      Noise level
    Barometric pressure and ambient temperature shall also be recorded
 
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