## pipe pressure from discharge in tank physics forums

### Air discharge from a tank using nozzle. - Pipe Flow

Dec 24, 2012 · the pipe goes into a converging-diverging nozzle, and this nozzle is located inside a bigger pipe, so the air eventually flows in the bigger pipe. I assume the pressure there in the beginning is 1atm. I need to calculate the discharge (flow rate) of the air from the tank, from the beginning untill the tank emptys from air. Bernoulli Equation Calculator with ApplicationsTank discharge calculations:Discharge from tank (steady state) Leak rate from pipe crack (liquids) Leak rate from pipe crack (gases) Time to Empty Tank. Pipe flow:Circular liquid or gas pipes using Darcy-Weisbach losses. Circular water pipes using Hazen-Williams losses. Relief valve:Pressure Relief Valve. Others:Unit Conversions. Register Calcualting Residual pressure Physics ForumsNov 19, 2010 · You also need to subtract the difference in height of the truck's tank fill level or pipe discharge height above the point where the pressure was measured because this is an open system. If the truck was ten feet tall to the pipe discharge, you would have to subtract approximately 4.3 psi from your static pressure of 72 as well as your hose losses.

### Choked Compressible Flow of Gas from Tank through Pipe

Specific gravity, viscosity, specific heat ratio, pipe diameter, surface roughness, tank temperature, tank pressure, discharge pressure must be acceptable values. "Need L > 0". Pipe length can be 0.0 since the software can model an orifice without actually having a pipe. Run-time messages:"Flow is choked". Eductor flow back pressure - Pump engineering - Eng-TipsSep 27, 2006 · I already have had problems with back flow into the Hopper when cutting off the supply because of the pipe and tank elevation. Fitting a check valve in the discharge will only add to my back pressure problems. Normal practice is to fit the Eductor package on top of the tank to prevent back pressure. But I cannot change the location of this unit. Eductor flow back pressure - Pump engineering - Eng-TipsSep 27, 2006 · I already have had problems with back flow into the Hopper when cutting off the supply because of the pipe and tank elevation. Fitting a check valve in the discharge will only add to my back pressure problems. Normal practice is to fit the Eductor package on top of the tank to prevent back pressure. But I cannot change the location of this unit. Exit Loss Coefficient - Industrial Professionals Jan 13, 2014 · When a fluid from a tank exits a pipe (K=1.0) into a wider fluid filled pipe or tank there is a frictional pressure loss of 1.0 velocity heads. On top of that there is a pressure gain of 1.0 velocity heads due to deceleration (Bernouili), so the total pressure drop at the exit will be 1.0 -

### Flow through Pipes in Series and Parallel:Difference

The volume rate of flow through the pipes in series is the same throughout. Suppose a pipe line consists of a number of pipes of different sizes and lengths. See Fig. 13.37. Let d 1, d 2, d 3 be the diameters of the component pipes. Let l 1, l 2, l 3 be the lengths of these component pipes. Let v 1, v 2, v 3 be the velocities in these pipes. Megaflo dripping discharge pipe DIYnot ForumsSep 25, 2004 · Our Megaflo has a dripping discharge pipe we have endless qualified plumbers around who have replace the cold water combination valve twice and recharged it and tried various things But every time it continues to drip cold water out of the tundish and down the outlet pipe. Multiple Pumps into One Header - Eng-Tips Engineering ForumsApr 21, 2005 · 2) It is assumed the main storage tank is open to atmospheric pressure. Is this correct? 3) If the main storage tank is at atmospheric pressure, why the employment of Schedule 80 PVC pipe? Is it due to piping support spans? Is it due to expected water pressure requirements? Heavier pipe schedules reduce the pipe carrying capacity. Need Help! High pressure Gas discharge from tank to tank Jun 16, 2017 · Diameter of the pipe is 0.005in, which is 100 times smaller than the in/out ports of the tanks. When t=0, the valve of the upstream tank open to let the gas deplete to the dowstream tank. I need to simulate the pressure change with time in the downstream tank as well as modelling the flow propagation through the pipe.

### Need Help! High pressure Gas discharge from tank to tank

Jun 16, 2017 · Diameter of the pipe is 0.005in, which is 100 times smaller than the in/out ports of the tanks. When t=0, the valve of the upstream tank open to let the gas deplete to the dowstream tank. I need to simulate the pressure change with time in the downstream tank as well as modelling the flow propagation through the pipe. OpenFlows Hydraulics and Hydrology Forum - OpenFlows I Have a project with ground elevation -0.40, and I want to Know the Manhole depth, but when I press calculate the program appear ((Invert elevation (0.00 m) is higher than or Pipe Size From Well To Pressure Tank Terry Love Plumbing Dec 19, 2006 · I'm designing the plumbing for a vet. clinic addition. The current well has a 3/4 HP, 10 gpm pump. The pressure tank is a Well-Ex-Troll 250. The pipe size from the well to the pressure tank is 1". After counting the fixture units and gpm for the new and existing building, I'm at Replacing T/P Relief valve using PVC instead of copper Jul 18, 2007 · Thanks to all for your input. I checked the water pressure (about 60 psi), and I don't have a PRV or expansion tank. Now I think I am ready to try replacing the T/P valve. My next question is can I replace the copper discharge pipe that runs to the outside of the house with PVC?

### TPR Valve--can I use flexible copper tubing? Terry Love

Dec 21, 2013 · I am replacing my 1999 40gal NG WH, and its located in a closet. I'm trying to plan how the new tank will fit. the biggest challenge is going to be that the new TPR valve will be higher from the ground than the one on my old tank. So connecting the new TPR to the existing pipe Where should the expansion tank go and why? Heating The air scoop, which is often attached to the expansion tank. It will function better with hotter water and at lower pressure. The T&P on the boiler does not want the extra pressure.A high head circulator pumping into the boiler could set off the T&P. Picture a system pressure of 18# with a 13# circ head pressure. It would trip a 30# T&P. Pipe Flow Calculator HazenWilliams EquationThe hydraulic radius, R, is the proportion between the area and the perimeter of your pipe. If the pipe is circular, you will find it according to the following equation:R = A / P = r² / 2r = r / 2 = d / 4. where r is the pipe radius, and d is the pipe diameter. You can view and modify all these parameters (area, perimeter, hydraulic radius) in the advanced mode of this pipe flow calculator.