How is the head of a loading pump calculated?
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Non-professionals have previously heard that the head of a pump can be estimated based on the idea that 10 meters of horizontal distance is roughly equivalent to 1 meter of head; however, the loading pump used for our 100,000 cubic meter crude oil storage tank has a transfer distance of 4 kilometers, yet its head is only 90 meters. How is this determined? Shouldn’t the head be 400 meters if calculated?
To calculate the head of the pump (the pressure at the pump outlet), this value is likely related to the pipeline resistance; in addition, the inlet pressure of the pump, the height of the delivery system downstream of the pump, and other factors also need to be taken into consideration. Those interested in this should get a copy of \"Principles of Chemical Engineering\" to read for reference.
In my opinion, head is a specific parameter of a pump, independent of the liquid flowing through it. However, for pumps with the same head, when transporting liquids with different densities and viscosities, their lifting height will definitely vary
The pump’s head is an inherent property. However, when using the same pump to transfer materials, products with different densities and viscosities achieve different lift heights, and this can generally be observed through the pressure at the pump outlet. The claim by the poster that a horizontal length of 10 meters is equivalent to a head of 1 meter is highly inaccurate; when a pump moves fluid, it must overcome the work required to rise it to a certain vertical height, as well as the resistances in both vertical and horizontal directions. These resistances are generally expressed as a combined parameter. The head required for a pump is generally calculated using specialized software. There are many relevant parameters, including the product’s density and viscosity, pipe diameter, parameters and quantity of elbows, as well as the frictional resistance of the pipes; these factors are used to determine the pipe resistance, after which the appropriate head can be selected.