Flow distribution of the same pump
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Hello everyone. I have a question: for the two pipes of different diameters in the circulating water pump, one leading to the first floor and the other to the third floor, theoretically, how is the flow rate distributed between them? Thank you all.
The resistance on the 3rd floor is high, so the flow rate will be low, similar to resistance.
What is the pipe diameter? What is the head? What was mentioned upstairs is just one reason
The two pipes of different diameters in the circulating water pump lead to the first floor and the third floor respectively; theoretically, it is impossible to determine their flow distribution as there is no reference point. The two pipes of the same diameter in the circulating water pump lead to the first floor and the third floor respectively; theoretically, more flow goes to the first floor, as the outlet head is lower there.
According to the principle of chemical reaction: parallel pipelines follow the rule of equal resistance drops. In pipes with small diameters, numerous valves, long lengths, and high flow speeds, the pressure drop per unit length is large, so the flow rate is low. This ensures that the resistance drop is equal.
It is recommended to provide data such as pipe diameter, material, and relative height. Calculations can be carried out based on the principle that the pressure drop in parallel pipelines is equal, thereby ensuring equal flow rates.
Everyone knows that fewer people go to the third floor and more go to the first floor; so is there any estimate of by how much?