So when the velocity of v1 and v2 is 0 (because the tanks are much bigger), the bernoulli equation to dh is dh = (dp-dpl)/(rho*g)
with dp = Phyd / V = 1000W / 0.01m³/s = 10^5 Pa and rho = 1000 kg/m³
So I am getting first without the pressure loss on the orifice dh = 10^5 Pa / (1000 kg/m³ *...
I know that water losses pressure as it move throw a pipe due to friction.
Does that mean that if we have two elevated tanks separated by a great distance but connected throw a perfectly horizontal pipe ,and then we fill the first tank with water till it reaches a certain hight, then the hight...
Hello all,
Thank you for reading my topic. My client asked me to make calculation sheet for gas pipeline like the image below. Can someone help me to make this? (i'm new in this system, need to learn and study. So please help me)
How to calculate the required pressure at connection point if...
Hello
We have a pipe that receives water at a constant rate. This creates pressure in the pipe. Is there a way to reduce pressure downstream?
Which equations describe the factors that affect pressure?
Thanks!
The actual problem I am trying to understand is the suction requirement to move #2 home heating fuel from the outdoor tank to the pump of the burner located in my cellar.
But first i just want to understand the movement of fluid in a vertical pipe without worrying about viscosity or...
If we have a tube of fluid going like it is shown in the picture, and we measure pressure at two points we would get the same value. But the fluid is still going from point A to point B. So is pressure difference not necessary for fluid flow or I made some other wrong assumptions?
I'm doing a fun home project, and it involves water flowing through a metal pipe, where the surrounding is significantly lower temperature than the water in the pipe. The point of the exercise is to cool the water in the pipe as it flows through it.
The question is, what influence does flow...
Hey folks, I'm back with a new question.
If I have a pipe of known diameter, with a known volume of water at a known pressure discharging downwards into atmosphere, how can I calculate the radius of its "spread". That is, how can I find what area beneath the discharging pipe is being covered...
Hi,
First, I want to thank ahead of time any help that can be provided. Second, I'm just an advanced tinker'r needing help on a project.
Description:
-Lever 1 and Clamp are attached
-Lever 2 and Rod 2 are attached.
-Clamp is tightened around Rod 2
-Upward force on end of Lever 2 needs to be...
Assuming laminar viscous (meaning not frictionless) flow.
Here is what I know about fluids flowing: You have a pressure difference between the two ends of the pipe. This causes a net force acting on the left side of the fluid in the pipe. Therefore, this incompressible fluid flows from left to...
Homework Statement
It is desired to heat 5130 kg/hr of cold benzene from 80 to 120℉ using hot toluene using double pipe heat exchanger. Toluene will be cooled from 160 to 100℉. The specific gravities at 68℉ are 0.88 and 0.87 respectively. A fouling factor of 0.001 should be provided for each...
Homework Statement
Consider a plug flow (slippery walls) with a uniform velocity ##U## in a circular pipe of diameter,##d## and length ##L##. The fluid is a supersaturated solution with a concentration ##c##. At the pipe wall, precipitation of solute happens at a net reaction rate per unit area...
Hi All.
I'm new here so I hope you will bear with me and please tell me if this is out of context or in the wrong part of the forum.
I am trying to programm a falling pipe system with corners in ArchiCAD (GDL).
I have been programming in different languages for a while now, but new to 3D vector...
Homework Statement
Homework EquationsThe Attempt at a Solution
i just don't know from where to take the R which is colored with brown, in the 2(MR^2), what is the R here exactly, because i took the radius of the sphere , but i get different answer althought it's near.
Hello all,
I am an Electronics Engineer, working in an R&D Organisation specializing in Electronics and Advanced Computing. My area of work is Control & Instrumentation related to Industrial Automation.
I am trying to identify the a solenoid valve to be used on a 2" pipe. For this I need to...
Consider the very standard pipe problem used to calculate the force required to hold a pipe with a bend that has some fluid flowing through it, as shown in the image. We use Newton's second law of motion to calculate the external force required. However, why is there pressure acting into the...
Hello,
If I have the following known variables:
- P1, Pressure of fluid entering the pipe = 50 psi
- L, Length of pipe = 10 in
- D, Diameter of pipe = 0.5 in
I want to learn how to calculate:
- P2, Pressure of fluid at the end of pipe.
- Q1, Volumetric flow rate of fluid entering pipe.
- Q2...
Does an ordinary pipe fitting, such as an elbow work when screwed onto a male compression fitting"? - or won't the connection seal properly?
The situation shown in the photo: I need to replace a 1/4 inch copper tube water supply line (to the ice maker on a refrigerator) with a 1/4 inch braided...
The air parcel expands as it rises and this expansion, or work, causes the temperature of the air parcel to decrease.
Imagine that parcels of _dry air_ go up inside the pipe that goes vertically from 0 to 5000 meters.
Suppose that they go up because they are slightly warmer that the air...
Homework Statement
Homework Equations
Minimum/Maximum occurs when the first derivative=0
The Attempt at a Solution
$$l_1^2+l_2^2=(a^2+x^2)+[b^2+(d-x)^2]=a^2+b^2+x^2+\left[ \sqrt{c^2-(b-a)^2}-x \right]^2$$
$$(l_1^2+l_2^2)'=2x+2\left[ \sqrt{c^2-(b-a)^2}-x \right](-1)$$...
Help
I manufacture and install shade sails, typically using sched 40 steel pipe as the posts on the corners. Most pipe information displays the strength from pressure from the inside, but my real world application is to take a pipe, let's say 14' long, dig a 4' x 16" hole, and bury the pipe...
I'm making a ventilation system with a fan that will blow air through a 1700mm long pipe that has a 45 degree bent in the middle. I should decide on a pipe diameter of 125mm or 160mm.
Also I need to choose between 3 different fans that has the following specs from the manufacturer:
120mm fan...
Homework Statement
Explain with basis in the figure how the necessary pumping effect is determined for a pump in a pipe system.
We are given the following data:
T = 15 C
75 m3/h vand
H = 11 m
L = 70 m rørledning
D = 100 mm
R = έ = 0,1 mm
ή = 80 %
9 of 90 % standard elbows R/D =...
Greetings everyone,
I've been recently trying to calculate the forces acting on a stationary object in pipe with flowing fluid. I've returned to my college textbooks to get some help and I've found examples that clearly demonstrated how to accomplish just that.
Below is one example.
This...
A water pipe whose diameter is 84 cm dan length is 2,4 m can contain rain water with the water height 68 cm like in the attached picture.
Determine:
a. The surface area which gets contact with the water
b. The volume of the water (in liters)
So... How do I do? What is the simple way to...
Hi.
Usually, the clarinet is presented as acting like a pipe system closed at one end, which only allows for harmonics that are odd multiples of the fundamental frequency. I used the app "SpectrumView" by OxfordWaveResearch to measure the following spectrum:
Fair enough, the amplitudes of the...
I have a problem where I want to find out the static pressure over a city in a water pipe system. As I know the elevations over the city I was first thinking of just using p = rho * g * h, but this should only apply if the pipe system were under water (if I use the density of water at least).
So...
Complete question:
Will flow ever reverse or stop if we increase resistance in this pipe scenario?
There are 2 comunicating vessels. The highest vessel is coninuosly alimented with new water. Water in excess flows down on the sides.
Water will try to reach the same height in both vessels, so...
Homework Statement
A 5m long heated pipe is used heat up water from 15°C to 65°C. Water flow through the pipe is 10liter/min. The heating gives a constant heat flow in all parts of the pipes surface. The inner and outer diameter of the pipe is 30 and 50 mm, respectively. Calculate the heat...
Homework Statement
A closed organ pipe of length 1.00m is filled with a gas and is found to give the same note as an open pipe of length 1.30m filled with air, when both are resonating at their fundamental mode of vibration
a) draw diagrams to show the nature of the waves in each pipe and use...
Hello all,
I have been having some problems and would appreciate any help:
I have a length of insulated pipe filled with engine oil at rest, the variables are as follows:
Toil: 40 oC
Tair: 5 oC
h1 (LO): 3600.63 W/m2/K
r1 (pipe inner): 0.1 m
r2 (pipe outer): 0.1095 m
r3...
Homework Statement
A pipe has a square cross section and a width of 2.00 m and is used to transport salt water from the ocean into a desalination plant. If a pump pushing the water into the pipe at a depth of 1.00 m below the surface of the ocean does so with a pressure of 80 kP a, and the...
Imagine a pump is installed in a pipe where there would be no need for it (no friction, no height difference, etc.). In order for the energy balance to be correct, does this imply that the fluid would experience friction inside the pump the same as the head provided by the pump?
Hi,
I'm trying to determine if a compressed air system has sufficient system to feed a new load
The minimum pressure required for existing loads and the current load is 7 bar.
In order to determine the pressure at E i did a pressure loss calculation for the following
A to B - △P start of pipe...
My first post, and first use of Latex. Here goes.
The engineering problem of calculating the time to drain a pipeline, tank, or vessel through an orifice is fairly straightforward using the orifice equation.\(Q=CA_{o}\sqrt{2gh}\)
With C being the coefficient of discharge for the orifice, Ao...
Homework Statement
In a resonance tube experiment, a closed organ pipe of length 120 cm resonates ,when tuned with a tuning fork of length 120cm resonates,when tuned with a tuning fork of length 340 hz.If water is poured into the pipe ,then (speed of sound in air=340 ms^-1)
(A) minimum length...
Homework Statement
The question is as follows:
The distance between the two positions of maximum loudness is x
What is the wavelength of the sound emitted by the tuning fork ?
A. x/2
B. x
C. 3x/2
D. 2x
the correct answer is answer D.
Homework Equations
Pipe with two ends open
λn=...
<< Mentor Note -- poster reminded to use the standard Template >>
Question Three
A pipe of outside diameter 200 mm is lagged with an insulating material of thermal conductivity 0.06 W m-1 K-1 and thickness 75 mm. The pipe carries a process fluid at a temperature of 300 °C and the average...
Question - Four
A pipe carrying superheated steam at 300 °C has an outside diameter of 120 mm and is lagged with two layers of insulating material. The first layer (adjacent to the outer pipe wall) is 25 mm thick and has a thermal conductivity of 0.072 W m-1 K-1. The second layer (covering the...
Pipe loops are used to accommodate thermal expansion. I have seen many types and lengths but here is one example:
https://www.engineeringtoolbox.com/steel-pipe-expansion-loop-d_1069.html
I am a little unclear on why they can work. With any thermal expansion the stresses on the elbow joints...
Hello!
First post, hope you all can help me out. I’m a peace corps volunteer in Nepal and am trying to implement drip irrigation for my school garden, since this season, we get water for about 30 minutes in the morning through a tap that is “always open.” The water that comes has some pressure...
Hello!
First post, hope you all can help me out. I’m a peace corps volunteer in Nepal and am trying to implement drip irrigation for my school garden, since this season, we get water for about 30 minutes in the morning through a tap that is “always open.” The water that comes has some...
suppose a water falling from pipe that above the ground with 5 meters,
what is the equation that describe the level of water ( h) from pipe the hole at every moment of time? consider the pipe hole is circle
.
<< Mentor Note -- thread moved from the technical forums, so no Homework Template is shown >>
The situation is as follows: Current I flows along the axis of the copper pipe. From Ampere's law, the magnetic field inside the pipe is zero and is equal to μ0*I/(2π*r) outside the pipe. Now, an...
Hi There,
I have constantly come across the fact that as fluid (hydraulic oil say) travels along a pipe you will see a continual drop in pressure the further you travel down the pipe. Am I right in saying that the pressure at any point is simply the result of the resistances (friction with pipe...
Homework Statement
A 1.75m long PVC pipe with a thermal conductivity of 0.19 W/mK has an internal diameter of 3mm and an external diameter of 5.5mm. Inner temperature is 298K and outer temperature is 273K. Calculate the heat transfer rate through the pipe and thus the decrease in the inner...
Homework Statement
Hello,
I'm trying to solve laplaces equation to find a solution for the potential in a pipe with the given boundary conditions:
at x=b, V=V_0
at x= -b, V = -V_0
at y=a, V=0
at y=-a, V=0
(Assume this configuration is centered on the origin, pipe as dimensions -b<=x<=b...
I'm designing a valve that uses a ball to seal the valve. When the valve is empty there is no force acting on top of the ball. When water flows in, it will push up on the ball to dislodge it, water will flow into the valve and push the ball up until it seats into the top hole/chamfer which then...
Homework Statement
Question: what rate does the water lose gravitational potential energy?
Data:
I have a pipe that water is flowing through and the pipe has 2 sections.
In section 1:
- the pipe is 11.9m above section 2 so, h = 11.9m
- the velocity of water is $$v_1 = 0.3240ms^{-1}$$...
OK, probably not extraterrestrial, but it did pique your interest. :)
After my dishwasher recently stopped working I learned that it has a small filter/strainer located just before the water inlet valve so I disconnected the water supply and found this slimy wormlike mass completely clogging...