4 replies to this topic

[panoska]

For a pipe or heat exchanger if we want to calculate the pressure drop for a higher flowrate, then we can use as first estimation:

dP1/dP2=(Q1/Q2)^2

?????

dP: pressure drop
Q: volumetric flowrate

[breizh]

Hi,

Study this material.

Please work like an engineer and provide relevant information to get a proper answer.

 

Breizh

Attached Files

•  Process and Mechanical design of Heat Exchanger.pdf   2.95MB   15 downloads

[panoska]

Hi Breizh,

 

First of all thanks for the interesting document.

 

What I want to do is to roughly calculate the increase of pressure drop in a pipe, when I increase the flowrate.

For that, I am asking if it is ok to use the aforementioned ratio to estimate the pressure drop for the higher flowrate.

 

I hope now my request is clear.

[breizh]

yes, Darcy Weisbach equation applied to your conditions.
Breizh

[panoska]

Yes, indeed!

Edited by panagiotis, 08 November 2024 - 01:40 PM.