Welcome to the PF.Bryan Sutter said:I have a length of pipe where air is being pulled through by a high powered fan at one end. The pipe is stainless steel, outer diameter is 100 inches. the thickness is 0.125 inches. I need to know what is the minimum vacuum pressure inside the pipe can be before the atmospheric pressure will collapse the steel?
Can you elaborate on this? You aren't referring to Euler's column buckling formula are you?Mech_Engineer said:Have you done a pipe buckling calculation to determine its critical buckling pressure?
The input of the pipe is inside a tank, so I do not believe adding a fan at this location is possible. As to the length it is ductwork going through a large plant, so I do not have length on hand, but it is quite long.berkeman said:Welcome to the PF.
Can you add a fan at the input to the pipe to minimize the gauge pressure on the pipe wall? How long is the pipe?
Bryan Sutter said:Can you elaborate on this? You aren't referring to Euler's column buckling formula are you?
"Min Vacuum Pressure in Pipe" refers to the minimum amount of pressure that is required to create a vacuum inside a pipe or tubing. This is usually measured in units of pressure such as psi (pounds per square inch) or kPa (kilopascals).
The "Min Vacuum Pressure in Pipe" is important because it determines the ability of a pipe or tubing to withstand the pressure difference between the inside and outside of the pipe. If the pressure inside the pipe is too low, it can cause the pipe to collapse or deform, leading to potential damage or failure.
The "Min Vacuum Pressure in Pipe" is typically measured using a pressure gauge or transducer that is attached to the pipe. The vacuum pressure can be created using a vacuum pump, and the pressure is then read on the gauge or displayed on a digital screen.
There are several factors that can affect the "Min Vacuum Pressure in Pipe", including the material and thickness of the pipe, the diameter of the pipe, and the type of vacuum pump being used. Environmental factors, such as temperature and altitude, can also play a role.
The "Min Vacuum Pressure in Pipe" can be increased by using a higher quality or thicker-walled pipe, increasing the diameter of the pipe, or using a more powerful vacuum pump. Proper sealing and maintenance of the pipe can also help to maintain a higher vacuum pressure.