# Centrifugal Pump Lab Report

So the result of the centrifugal pump performance test for the differential head, power consumption, and efficiency is satisfactory.

So the result of the centrifugal pump performance test for the differential head, power consumption, and efficiency is satisfactory.

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The following formula converts pressure to the head; H(meter) = 10.2 P/SG or H(feet)= 2.3P/SG Once the rated flowrate has been determined, the designer subsequently specifies the total head (H) needed at this flowrate.

Obviously, the pump outperforming since consumes less power.

However, API 610 acceptance range is 4% it means the pump test result would be satisfactory even if consumes more than 4 % from what indicated in the datasheet. The minimum efficiency in the approved datasheet is 68 %.

In such cases, the attained values will be converted to field condition by engineering calculation.

## Centrifugal Pump Lab Report Computer Assignments

Subsequently, you need to check bearing housing and shaft vibration FFT spectrum (Plot) at each data point from minimum to maximum flow to ensure the vibration values are within acceptance range.You need to match this curve with datasheet specification to make sure the pump passed the performance test.Let's start with head-capacity curve, we draw a verticle line at 238.5 (in the horizontal axis), and it will cross head-capacity curve, then we draw a horizontal line from the cross point, and it crosses the vertical axis at 2640. What is the test result ( the head almost is 50.28 meters less than required value)? The API 610 at table 18 says the head can be /- 3% of the rated value.Check the efficiency curve, the efficiency amount at the 238.5 m³/h is 70%.So the pump is outperforming and gives higher efficiency than what required in the datasheet.The centrifugal pump performance test is conducted by pump manufacturer after completion of the assembly to prove the pump has the required specification as indicated in the pump datasheet and other purchase documents.The performance test is conducted after completion of casing inspection, casing hydrostatic test, impeller, and rotor dynamic balancing.The Pump NPSH Test (Net Positive Suction Heat Test) report also shall be verified against approved datasheet values.The pump mechanical running test is performed after successful completion of performance and NPSH test.Now let deepen in the centrifugal pump performance test by the understanding of flowrate, total head, power, and efficiency.Volume flow rate (Q), also referred to as capacity, is the volume of liquid that travels through the pump in a given time (measured in gallons per minute or GPM).

## Comments Centrifugal Pump Lab Report

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