Flow rate issue
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I would like to ask everyone: when the pipe diameter is fixed, how should the flow rate be controlled in order to meet the flow requirements? I’m not quite sure how the flow rate within the pipe is controlled – is it through a control system such as DCS?
The flow rate is closely related to the pressure difference, which in turn is associated with the load; the greater the usage, the higher the flow rate and the pressure difference, while at lower usage levels the flow rate is lower and the pressure difference is smaller. This can be seen from Bernoulli’s equation.
Use whatever is necessary to control what needs to be controlled; use a pump to control the opening degree of the pump, and use gravity flow to control the opening degree of the valve
In this case, the flow rate multiplied by the cross-sectional area of the pipe gives the flow volume; in essence, it is about controlling the amount of flow. The method for controlling the flow is to adjust the opening degree of the valve to achieve the desired flow volume. Flow control can be achieved by installing control valves and flow meters in the pipeline.
The flow rate of pipelines is nothing but for flow restriction, flow enhancement, and flow stabilization. Different equipment is selected based on the process conditions to achieve various outcomes. You can message me privately
The cross-sectional area multiplied by the flow velocity gives the volume flow rate; if the mass flow rate is desired, it can be obtained by multiplying this value by the density. Therefore, when the pipe diameter is fixed, controlling the flow velocity also means controlling the flow rate