# Centrifugal Pump Lab Report

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 %.The curve indicates the consumed power at 238.5 m³/h is 2600KW (power consumption was provided at the left side of the vertical axis).

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 %.The curve indicates the consumed power at 238.5 m³/h is 2600KW (power consumption was provided at the left side of the vertical axis).

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The NPSH test, mechanical running test, and final inspection are done after performance test.

The vibration testing is carried out during performance test and mechanical running test.

That is why they are using head instead of pressure.

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.

The manufacturers also simulate the test result to actual field condition.

The pump might be designed for crude oil, but in the shop will be tested by the water.

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.

So the measured head at the 238.5 m³/h is 2640 meter. The 3 % of the rated value (2690.28 x 3%) would be 80.7 which is greater than 50.28, the pump underperforming but the test result is acceptable.

Let's assess the power consumption; we repeat the same process but this time with the power curve.

## Comments Centrifugal Pump Lab Report

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