Problems in crude oil transportation!
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We use centrifugal pumps to transport crude oil, in a series configuration, with a flow rate of 2,000 cubic meters per hour. There is a variable-frequency oil supply pump in front of the pump. One issue that arises during transportation is the high temperature of the oil; this causes the pressure in the pump’s outlet pipeline to rise, and consequently the temperature also increases. Conversely, when the pressure drops, the temperature decreases as well. Logically, since crude oil has a low temperature and high viscosity, it should create greater resistance, leading to higher pressure. Could it be that high oil temperatures cause an increase in the pump’s discharge volume, thereby raising the pressure?
I think it has something to do with pipeline resistance. High viscosity results in high pipe resistance losses, and thus low pressure.
The higher the crude oil temperature, the lower its viscosity; this results in less pipeline resistance and thus a higher outlet pressure