Pipe Definition and 1000 Threads

I have a problem which I am working on and its been a while since I did this at uni so I am after a little guidance :) Im trying to work out what pressure will be required to flow at a specific rate through a piece of pipe, the pipe begins with an ID of approximately 1-1/2" then drops to...

I am currently doing my final year project and have a few queries. I would be really grateful if someone could answer the following questions for me as soon as possible. • The requirement is to drop the pressure from 140-150 bars at the inlet of a pipe to 2 bars at the outlet of the pipe. •...

1. Where did i go wrong, please explain. Homework Statement The Horizontal Venturi pipe has a cross sectional area of 50cm^2 at the wider portions(A_1) and 25cm^2 at the constriction(A_2). Air density of 1.29 kg/(m^3) is flowing in the pipe. Theres a attachment of a picture to reference...

I have a pipe with a constant mass flow rate dm/dt of air being blown gently through which opens out into the atmosphere at both ends. At the middle point of this pipe it is heated at a constant rate dQ/dt. Assuming that the air is heated rapidly and all the heat is transferred to the gas is it...

Homework Statement A pipe has area 4 cm2 and is connected to sprayer that has 4 holes each of 0.5 cm2. If the speed of water in pipe 2.5 m/s, the volume of water that comes out from each of the holes in 1 minute is ... liters a. 0.1 b. 0.6 c. 1 d. 6 e. 10Homework Equations A1v1=A2v2 Q = V/t =...

Flow Rate through a pipe! Oil flows along a horizontal pipe which varies uniformly in section from 100 mm diameter at A to 150 mm diameter at B. At A the gauge pressure is 126kN/m2 and at B 140 kN/m2. Find the flow rate in litres per second and kilograms per second. The density of water is...

"Capping" fluid flow from pipe If there is a 4.1cm diameter pipe located ~10m underwater, with water (negligible volume and mass flow rates - the water is only really trickling out) flowing out of it at 2 bar (so 1 bar difference in water and ambient pressure), does anyone have any rough ideas...

I can't seem to find an equation that fits the situation I am facing. Either that, or I just don't believe the answer the current equations are providing. I am trying to develop the size for an air compressor to fill up a train braking sytem. I have equations for most of the system, but I...

Hi to everyone, I have a problem with sizing pipe threaded elements. I am looking for guide rules that with a simple external meassurement I'll be able to determine the element size such as safety valves,threaded pipes,pressure gages,caps etc. To clarify my question, hereby an example, when...

Hey guys i have a question for my lab report that i can't solve. We did a lab where we had a pipe and produced sound resonance in there, using a generator to vary the frequencies and we recorded our data. the general formula is for the closed pipe, fn= n (v/4L) and wavelenght= 4L/n. The...

Hello, I am working on a project and I came across a question that is a little beyond my skill set. I am designing a support for a roof, and I have the force into the post, the length of the post and I need to determine what pipe I need, size, schedule diamter, etc. How do I go about this...

Homework Statement A particular organ pipe can resonate at 264 Hz, 440 Hz, and 616 Hz, but not at any other frequencies in between. (a) Show why this is an open or closed pipe. (b) What is the fundamental frequency of this pipe? Homework Equations Open pipe: f_1 = f_n+1 - f_n Closed...

I have 6" Carbon steel pipe Question. I am working on a project. I have 6" Carbon steel pipe which I am going to use 10" High Density Polyethylene Pipe(HDPE) to sleeve and protect 6" pipe from corrosion. This pipe will be buried. I am trying to use electrofusion coupling to connect HDPE. The...

Homework Statement For this problem use: ρwater = 1000 kg/m3 A cylindrical water-storage tank has a height of 7.9 m and a radius of 6.2 m. The storage tank is full of water but is vented to the atmosphere. The bottom of the tank is 35 m off the ground. A 12 cm diameter pipe runs...

Hello, I design high powered rockets in our Tripoli rocket club. A particular plastic type of tube used is the Quantum 3.9 in dia plastic (sewer pipe) it is a thin wall design. http://www.publicmissiles.com/ They state that this basic tube is good for just .86 mach for compression loads...

Hi I am curious to know if anyone can provide a formula/answer to the affect of a thin layer of ice may have on heat loss in water flowing in a pipe. Example. I have a smooth plastic pipe approx 20mm diameter, 5m length. 400ml of water travels down the pipe, approximately 0.5m/s. in -10C...

I have an assignment and don't even know where to start so that's y am asking the experts on here to give me an idea how to go about this: In a company factory, a steam line has been identified as loosing too much heat. The steam line has a diameter of 254mm ( it may be considered to be thin...

hello, i want to fix a bearing inside a pipe but not "permanently" so i can remove it and change it whenever i need. please if anyone has a method for fixing it, share it with me ?

Homework Statement A pipe of radius R is maintained at temperature T. It is covered in insulation and the insulated pipe has radius r. Assume all surfaces lose heat through Newton's law of cooling \vec{J} = \vec{h} \Delta T, where the magnitude h is assumed to be constant. Show that...

Hey everyone, I've got a problem here and I'm looking for a simple solution. Basically, I need to keep a consistent hydraulic head between two points of a vertical drainage pipe. I have a sump pump and two electronic float valves (that I purchased separately). What I want to do is wire the...

I was walking through my garage and bumped into a pvc pipe. The pipe fell over and I was wonder how I could calculate the force needed to push the pipe over. The pipe is 40 in. tall and has a 4 in. radius. The force would be applied perpendicular to the pipe and at the very top of it. any help...

Homework Statement A very tall pipe is partially filled as shown. (A vertical pipe is filled with water about halfway, and .85m of air is in the pipe to the open end. The bottom is closed). |**| ^ |**| | |**| .85m |__| _|_ |__| |__| |__| |__| |__| ^^ My attempt at a drawing, where...

I understand that the volume of a pipe is the circle pi x r (sq) x height I have worked out the volume of water inside a pipe running from the shower to the boiler (cold water that will run through the tap before the hot water arrives) and it does not make sense. The pipe is 22 mm; the...

Hey, I was wondering what were would happen to the fluid flow or if this would cause any structural problems to the following case. A vertical pipe of 150mm diameter and roughly 3 metres in length is at the bottom of a large tank. At the bottom of the pipe is a coupling which leads to...

Hi As fluid enters a pipe and progresses further down, does the shear stress at the wall reduce whilst the boundary layer increases and viscous forces take over? Thanks

A hemisphere shaped tank with vertical outlet pipe is full of mysterious liquid. Find the work required to pump the mysterious liquid out of the outlet. The density of the mysterious liquid is 300/98 kg/m^3. [Radius is 2m and vertical pipe is 1m] W= F*d =m*a*d =D*v*a*d D=300/98 kg/m^3...

Dear Physicists, I'm not sure if my question qualifies as coursework, but here it is anyway: I'm taking ENGR-101 this term, and for a group project my group chose the design of a solar water heater. I'm trying to find a formula to calculate our design's efficiency, and when I search for...

http://flexpvc.com/cart/agora.cgi?product=PVC-6-ways Problem: Find the surface area (internal and external) and volume of that (the 6 ways PVC pipe in the link) if the radius of the cavity is .5 cm, the inside of the pipe is completely smooth, and the thickness of the pipes is .05 cm. I AM...

Hello, can someone tell me how the reynolds number for flow through a pipe change along it's length? Is the only method that the boundary layer gets thicker along the pipe so the freestream velocity increases? Assuming no gas temperature change along the pipe's length. From thinking of the...

I need to calculate whether a steel pipe above the ground, 1500mm OD and 6mm wall thickness, will fail under a vacuum of 3000 Pa. How would I go about doing this?

I am looking for software to calculate flow rate, pressure drop, flow rate and temperature change in facility piping. Any suggestions?

Yes, first to say that this's really a basic matter but I've found all around a week & still facing difficulty, hope someone has patient to help me an answer then i can go further myself :wink: As in the attached picture, a few ones have done their calculations & showed the different wall...

I am a novice pipe designer and I have a project starting on Monday. I have to design a Filtered Water Supply system. The pipe is SS and the majority of the header is located outside. The engineer said no insulation is needed if we put a recirculation system in. He says by keeping the water...

OK, if someone could please help. I need a GENERAL rule for finding cfm in pipe 120psi at source 1/2in copper pipe 10ft drop 100ft of pipe can someone give me a VERY simple equation on how to figure out the cfm capability of this pipe? I don't need a complex long equation, i...

I have a centrifuge with hydraulic lines on the arm. I need to calculate the pressure that will be developed at the end of the centrifuge arm in the hydraulic lines. The radius of the arm is 3 meters. At the end of the arm the G level will be 100g. Obvioulsy the g level at the center point...

i have this question which asks me to find the average flow velocity in a pipe, BUT based on flow rate relation and not statistical average what is the flowrate relation?

Pressure In a Horizontal Pipe - Please Help! Homework Statement The pressure in a section of horizontal pipe with a diameter of 2.40 cm is 143 kPa. Water flows through the pipe at 2.90 L/s. If the pressure at a certain point is to be reduced to 101 kPa by constricting a section of the pipe...

Homework Statement I'm having a real hard time on the last homework question for this week for my Uni Physics I course. Here it is: Top-fuel dragsters can accelerate from rest at a rate of about 5g. If this does not sound impressive, consider that for most automobiles the friction between...

Homework Statement water flows steadily with negligible viscious effects through this pipe. the 4-inch diameter section of the thin walled tubing will collapse if the pressure within is at 6 psi below atmospheric pressure. determine maximum h so that the tube won't collapse. final...

Homework Statement The water supply of a building is fed through a main pipe 6.00cm in diameter. A 2.00cm diameter tap is located 2.00m above the main pipe. When the tap is turned on it fills a 25.0L container in 30.0s if no other taps are turned on at the same time. a) What is the speed at...

I am trying to get some help in sizing my exhaust pipe for my 1997 Pontiac Trans Am WS-6 Can anybody point me in the right direction for equations? I pulled out my Marks handbook hoping it would help, but I couldn't find anything I have been thinking of doing this as a gas dynamics...

I wanted to know how the magnetic field of a solenoid would be affected if a copper/iron pipe section was put into its center. In other words, what would the resulting magnetic field be if I simply wrapped a coil around a metal pipe section without removing the pipe afterward? Will there be...

Consider a pipe. One end of it (hole) is malleable, in that we can make it larger so that the cylinder adopts a conical shape (yet the other 'hole' does not change). If one were to apply suction at one end of the pipe, with respect to air flow, how does the pressure gradient vary within the...

Homework Statement A vertical steam pipe of diameter 8 cm and emissivity e=0.8 has it's surface at 950C. The surrounding air and the temperature of the room and things in it are at 270C. What is the heat emission rate H from the pipe, for meter length, by radiation? Homework Equations...

Homework Statement A vertical steam pipe of outside diameter 7.5 cm and height 4 m has its outer surface at the constant temperature of 950C. The surrounding air is at atmospheric pressure and at 200C. How much heat is delivered to the air by natural convection in 1 hr? Homework Equations...

I am trying to formulate a plug flow for section of my model. In my model, I've series of CSTR that are linked with the plug flow. The output of the plug flow model is the CSTR model. My main focus is blending CSTR and plug to replicate a residenc time distribution. However, i need a plug flow...

1. The pressure at the start of a 180km stainless steel natural gas pipeline is 4Mpa and at the end is 2Mpa. If the diameter of the pipe is 0.4m, what will be the gas flow rate through the system? (ignore losses other than friciton) (for natural gas, \rho= 40kg/m3, \mu= 11x10-6 Pas2...

Hello everyone, Thank you to all who offer their help. Homework Statement If the volumetric output of the pump were increased, keeping the pipe diameter constant, would the pressures at A, B, and C increase or decrease? Would the heights within each column at each location rise or fall...

Consider a vertical pipe partially filled with liquid. The pipe is open at the lower end and closed at the top. See the attached picture. Will the liquid fall out or not? In a small diameter pipe a stable meniscus will form due to surface tension and prevent the water from falling out. In a...

Fluid Dynamics - Multiple Pipe System Need Help Please! There are 2 pumps at 2 locations with pipes (12") running from each of the pumps that are to both tied into 1 pipe (16"). In order to tie the 2 pipes into the one pipe there will be a 90 and a y fitting. The 16" pipe will then continue...