All Questions
Tagged with pipelines hydraulics
12
questions
0
votes
0
answers
54
views
Computing the velocity of water under reverse flow conditions from storm water drain
I am trying to compute the approximate velocity of water during reverse flow from the outfall location to the street through storm inlets. This is generally seen during what is commonly referred to as ...
1
vote
1
answer
117
views
How to transfer high pressure hydrogen using flexible pipes?
The task is to transfer hydrogen (high pressure gas > 400 bars) from offshore platform to land. To do so we have to use flexible pipes but for high pressure and high flow rate I'm afraid we can't ...
- 9
0
votes
0
answers
22
views
How to determine of pumps required on a pipeline
I have a 14km long pipe with total head loss of 113m, transporting water at 40m3/h. How do I decide how many pumps I need? I understand headloss is 113m, but I still don't get how does this tells me ...
- 1
0
votes
2
answers
162
views
Pumps' geometric similarity
Given two pumps that are similar :
$H_1=70-1.41x10^{-3}Q_1^2$
$H_2=100-1.1x10^{-3}Q_2^2$
Find the geometric scale :
$\frac{D1}{D2}= ?$
I am also given maximum efficiency = 1.
I tried solving but I got ...
- 131
1
vote
1
answer
285
views
Why is the head loss in submerged pipe is 0
Looking at this question :
Point C head loss is 0 according to the author
Bottom right
Can’t understand why , any good explanation for this claim ?
Look at page 33 at the top
- 131
-1
votes
1
answer
544
views
Head loss for T junction diverging water pipes
I am writing to ask for help with a T-junction pipe problem. Attached picture shows the pipe configuration. The schematic shows a large pipe with ID 16.5mm and smaller 4mm ID tubes connected to it. ...
- 1
0
votes
1
answer
388
views
Determining the headloss according to Darcy-Weisbach with pipes in parallel and series
Given the following situation:
Pipe A and B have a known and identical length and diameter, and are in parallel. I'm assuming the flow trough pipes A and B are also identical, as is the roughness of ...
- 3
3
votes
3
answers
99
views
How to make sure a pipe does not take all of the water from a stream?
I am trying to design a pipe which takes water from a river and transports it to a reservoir.
However, I do not want my pipe to take all of the water from stream, because that will create all sorts ...
1
vote
0
answers
335
views
Determining the Steady Discharge Between Two Reservoirs
A uniform pipeline, $5km$ in length, $100mm$ in diameter and with a
roughness size of $0.03mm$, conveys water between two reservoirs.
The difference in water level between the reservoirs is $...
0
votes
0
answers
516
views
Can Swagelok SS ferrule be reused?
At times, the Swagelok SS Ferrules gets crimped tight into the SS pipe. In those cases, can these ferrules be forcefully removed and reused?
Or was this a result of faulty installation?
- 233
0
votes
2
answers
641
views
Darcy-Weisbach Equation
I've come across two forms of the Darcy-Weisbach Equation, and each one seems to yield a different result when I am solving for $Q$ (flow).
$$h_{f}=\frac{\lambda Lv^{2}}{2gD}$$
$$h_{f}=\frac{f LQ^{...
- 41
1
vote
0
answers
3k
views
Calculating discharge on the pipe diameter and the pressure?
Is it possible to сalculate discharge / flow rate on the pipe diameter and the pressure (for constant pressure)?
For example:
Pressure_internal = 5 bar, ...
- 111