Pump inlet and outlet pressure
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The pump transports heat transfer oil at 50° to a height of 20 meters to cool the heat exchanger; after cooling, the oil returns to the pump inlet. There is a heat transfer oil cooler at the pump outlet, where the oil is cooled back to 50° before being sent again to a height of 20 meters to cool the heat exchanger. There are no buffer tanks in the system. If the operating pressure of the heat exchanger at 20 meters is 0.6 MPAG, how should the pressures at the pump inlet and outlet be determined?
0.6MPAG+oil column height (approximately)
The pressure difference in heat exchangers is generally not high either. If there are so many outlets, the inlet pressure will be at least 0.6 plus the height of the oil column; as a result, the head loss at both the inlet and outlet is reduced, and thus the pressure difference is also lower
A rough calculation can be done this way.
After pumping, you can’t simply use the outlet pressure to determine the inlet pressure; it is necessary to calculate it based on the inlet pipeline, as the pump does work on the fluid
I think the work done by the pump is used to overcome the resistance in the pipes
Is the oil column height here 20?