Can gas pipelines transport gas at a constant flow rate and constant pressure?
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For example, in an actual gas pipeline where gas is being transported, if I take a 10-m-long section of such a pipeline, is the pressure within that section constant?
Could such a good thing happen? Then there’s no need to add compressors for transporting natural gas from the west to the east; a single pipeline is sufficient to deliver natural gas from Shaanxi to Shanghai.
This post was last edited by qugd on 2020-11-19 08:20. It is not possible to meet such requirements. Even for a pipe that is 1 millimeter long, as long as the fluid inside it is flowing, there is a pressure difference, which can be calculated by dividing the pressure difference at the pipe’s inlet and outlet by the total length of the pipe. To maintain a constant current, it is not possible to maintain a constant pressure, as there are pressure losses in the pipelines, and pressure is the force that drives fluid flow. If the entire pipeline reaches a constant pressure, the flow rate must be zero. Because there is no pressure difference, the driving force for flow disappears.