## Featured Articles

Check out the latest featured articles.

## New Article

Product Viscosity vs. Shear

## Featured File

3-Stage Propane Ref Performance

## New Blog Entry

Pipe Design Pressure Debate- posted in Ankur's blog

0

# Parallel Pipe System - Sizing Problem

parallel pipe pipe sizing head loss

3 replies to this topic
|

Brand New Member

• Members
• 7 posts

Posted 18 April 2017 - 12:32 PM

Hi

I am trying to solve a parallel piping system (sizing problem). I need to find the diameter of each branch pipe. I am using a Darcy Head Loss Equation for Iterative solution. I have flowrate, Length, viscosity and density. I will guess the friction factor and continue my iteration but problem is i am not provided with the head loss (hf).

please tell me how can i calculate the head loss (hf) value. Problem sketch and statement is also attached.

### #2 Bobby Strain

Bobby Strain

Gold Member

• Members
• 2,226 posts

Posted 19 April 2017 - 05:32 PM

You should think how to do this, do some work, and show it to us. But not in Excel gibberish. I would start with what you know, and see how this relates to the problem. The key lies in the fact that the flow is laminar, so the friction factor is a simple function of the Reynolds number. This is where I would start.

Bobby

### #3 breizh

breizh

Gold Member

• ChE Plus Subscriber
• 3,671 posts

Posted 20 April 2017 - 07:50 AM

Hi,

Good luck

Breizh

### #4 Nikolai T

Nikolai T

Gold Member

• Members
• 52 posts

Posted 24 April 2017 - 11:54 PM