- #1

- 5

- 2

- TL;DR Summary
- How is the pressure drop determined when calculating pipe sizes?

Hi all, I'm a tinkerer with no formal engineering background, but enjoy read about physics and engineering in general.

I'm reading up on fluid flow and I'm a bit grasping at the concepts. As far as I understand it, flow rate, pressure drop and pipe size are all interrelated, where one affects the the other.

However in real life, I'm not sure how it's done - say I want to know the pipe size needed to carry compressed air from the compressor to the shop. The flow rate required is known based on the expected usage - but what about the pressure drop, which is dependent on the pipe size?

Is it simply done by determining an acceptable/maximum pressure drop value, and then calculate the diameter required to achieve the required maximum acceptable pressure drop?

I'm reading up on fluid flow and I'm a bit grasping at the concepts. As far as I understand it, flow rate, pressure drop and pipe size are all interrelated, where one affects the the other.

However in real life, I'm not sure how it's done - say I want to know the pipe size needed to carry compressed air from the compressor to the shop. The flow rate required is known based on the expected usage - but what about the pressure drop, which is dependent on the pipe size?

Is it simply done by determining an acceptable/maximum pressure drop value, and then calculate the diameter required to achieve the required maximum acceptable pressure drop?