Calculate Pipeline Length: Pressure Drop & Parameters Explained

  • Thread starter Thread starter Amirul96
  • Start date Start date
  • Tags Tags
    Length
AI Thread Summary
Calculating pipeline length typically requires knowing the pressure drop and the specific parameters of the system. The discussion highlights the challenge of determining pipeline length without initial data on pressure drop or length itself. Key inputs for calculating line friction include gas flow rate, pressure, temperature, molecular weight, compressibility, and viscosity, though there is uncertainty about the necessity of some parameters. The conversation also raises questions about the definition of "pipe friction," whether it refers to shear stress at the wall or the pressure gradient multiplied by the length of the pipe. Accurate calculations depend on clarifying these definitions and understanding the required inputs.
Amirul96
Messages
9
Reaction score
0
Hi,

I want to ask how to calculate the length of pipeline..From what i have searched, one of the way to calculate it is from the equation of pressure drop. However, it seems i don't have info about the pipe length and pressure drop (it means i need to calculate it). Is it possible to calculate the pipe length without those two info?

As in the attachment are the type of parameter may related to calculate the length of pipeline

Regard,
Mirul
 

Attachments

  • Spreadsheet 1.PNG
    Spreadsheet 1.PNG
    10.4 KB · Views: 190
  • spreadsheet 2.PNG
    spreadsheet 2.PNG
    11.9 KB · Views: 203
  • Capture.PNG
    Capture.PNG
    14.3 KB · Views: 193
  • Capture 2.PNG
    Capture 2.PNG
    7.8 KB · Views: 192
Engineering news on Phys.org
What are you actually trying to calculate, and what are you given?
 
  • Like
Likes jim mcnamara
Amirul96 said:
how to calculate the length of pipeline
Usually you are given the length of the pipeline as one of the first specifications. How can you not know how far you need to pipe your product?
 
  • Like
Likes jim mcnamara
Chestermiller said:
What are you actually trying to calculate, and what are you given?

i want to calculate the line friction and i believe in order to calculate it i need the length of pipeline.
Capture 3.PNG


On the other side, the input are gas flowrate, pressure, temperature, molecular weight, compressibility and viscosity. However, i really doubt molecular weight, compressibility and viscosity are input and need to be calculate too.
Capture 4.PNG
 
Amirul96 said:
i want to calculate the line friction and i believe in order to calculate it i need the length of pipeline.
View attachment 266269

On the other side, the input are gas flowrate, pressure, temperature, molecular weight, compressibility and viscosity. However, i really doubt molecular weight, compressibility and viscosity are input and need to be calculate too.
View attachment 266270
What is your definition of the "pipe friction", the shear stress at the wall? Or is it the pressure gradient times the length of pipe?
 

Thread 'A practical way to vaporize fuel for high MPG?'

Here's a video by “driving 4 answers” who seems to me to be well versed on the details of Internal Combustion engines. The video does cover something that's a bit shrouded in 'conspiracy theory', and he touches on that, but of course for phys.org, I'm only interested in the actual science involved. He analyzes the claim of achieving 100 mpg with a 427 cubic inch V8 1970 Ford Galaxy in 1977. Only the fuel supply system was modified. I was surprised that he feels the claim could have been...
View full post »

Thread 'Technical Analysis on Titan Sub (Titanic Sub)'

TL;DR Summary: Heard in the news about using sonar to locate the sub Hello : After the sinking of the ship near the Greek shores , carrying of alot of people , there was another accident that include 5 tourists and a submarine visiting the titanic , which went missing Some technical notes captured my attention, that there us few sonar devices are hearing sounds repeated every 30 seconds , but they are not able to locate the source Is it possible that the sound waves are reflecting from...
View full post »
Thread 'Turbocharging carbureted petrol 2 stroke engines'

Thread 'Turbocharging carbureted petrol 2 stroke engines'

Hi everyone, online I ve seen some images about 2 stroke carbureted turbo (motorcycle derivation engine). Now.. In the past in this forum some members spoke about turbocharging 2 stroke but not in sufficient detail. The intake and the exhaust are open at the same time and there are no valves like a 4 stroke. But if you search online you can find carbureted 2stroke turbo sled or the Am6 turbo. The question is: Is really possible turbocharge a 2 stroke carburated(NOT EFI)petrol engine and...
View full post »

Similar threads

Fluid Mechanics - Need Help on a Water Pipeline Project
Replies
7
Views
2K
Advice on pressure drop calculation
Replies
2
Views
2K
Pigging or Flushing a 15 km Non-Uniform Pipeline
Replies
2
Views
1K
Pressure drop due to holes in a pipeline?
Replies
10
Views
5K
When air pressure drops in a pipe due to friction losses, how do you calculate the associated temperature drop?
Replies
8
Views
1K
Tapping water from well by gravity -- calculations
Replies
37
Views
3K
How to determine the pressure drop in pipe diameter sizing
Replies
5
Views
2K
Disc lifted by pressurized air in a vertical tube
2
Replies
59
Views
5K
What is the temperature loss along a duct with hot air entering?
Replies
24
Views
3K
Huge pressure drop after changing pipe length (Don't think it's loss)
Replies
13
Views
4K

Hot Threads

Recent Insights

Back
Top