Title: Veloscity in the pipe
Franz© - February 24, 2012 04:46 AM (GMT)
Does it slow when Sheis leans on the pipe?
How to Calculate the Velocity of Compressed Air in a Pipeline
The velocity of air in a pipeline is an important design characteristic.
Velocity is the speed of a material that can be measured in units such as feet per second. It is how many feet a volume of gas travels in one second. Recommended velocities of gases such as air are typically 90-120 feet per second. The calculation of velocity in a pipeline requires the volumetric flow rate and the pipe's internal diameter.
1
Determine the volumetric flow rate of compressed air in a particular pipeline. For instance, assume the volumetric flow rate is 150 cubic feet per minute (2.5 cubic feet per second).
2
Determine the internal cross sectional area of the pipe. Assume the pipe has an internal diameter of 2.067 inches (this is a typical 2-inch pipe). The area calculation is the diameter squared x PI / 4. Convert the inches to feet by dividing by 12 such as 2.067/12 which equals 0.172 feet. The cross sectional area becomes 0.172 squared x 3.14167 / 4 which equals 0.023 square feet.
3
Determine the velocity of compressed air by dividing the volumetric flow rate by the pipeline's cross sectional area. This is 416.67 cubic feet per second / 0.023 square feet for a velocity of 108.7 feet per second which is in the recommended range.
notsowise - February 25, 2012 05:12 AM (GMT)
| QUOTE (Franz© @ Feb 23 2012, 11:46 PM) |
Does it slow when Sheis leans on the pipe?
|
That depends if Sheis' obesity is able to deform the pipe. If that happens we will have to consider the Venturi effect using Bernoulli's principle and the continuity equation.
notsowise - February 25, 2012 05:14 AM (GMT)
In that case velocity should increase.
Franz© - February 25, 2012 05:21 AM (GMT)
| QUOTE (notsowise @ Feb 25 2012, 12:12 AM) |
| QUOTE (Franz© @ Feb 23 2012, 11:46 PM) | Does it slow when Sheis leans on the pipe?
|
That depends if Sheis' obesity is able to deform the pipe. If that happens we will have to consider the Venturi effect using Bernoulli's principle and the continuity equation.
|
OK, so Sheis deforming Sch 20 is a given, but how about sch 40 and or 80?
Will the venturi be created if Sheis just wows the pipe?
Would a better method of venturi creation be Sheis leaning on one side of the pipe while the steward leans opposite Sheis on the other side of the pipe and would it require 19 engineers weeks of calculation or could Nutso just pencil it out on a cardboard box?
notsowise - February 25, 2012 05:50 AM (GMT)
| QUOTE (Franz© @ Feb 25 2012, 12:21 AM) |
Would a better method of venturi creation be Sheis leaning on one side of the pipe while the steward leans opposite Sheis on the other side of the pipe and would it require 19 engineers weeks of calculation or could Nutso just pencil it out on a cardboard box? |
It will help to have Cody leaning on the opposite side.
No matter what we are going to have to be patient and wait for the educates to tell us what we already know.
sheiserman - February 25, 2012 02:45 PM (GMT)
| QUOTE (notsowise @ Feb 25 2012, 12:12 AM) |
| QUOTE (Franz© @ Feb 23 2012, 11:46 PM) | Does it slow when Sheis leans on the pipe?
|
That depends if Sheis' obesity is able to deform the pipe. If that happens we will have to consider the Venturi effect using Bernoulli's principle and the continuity equation.
|
If my obesity is able to deform 36" pipe, we're both going to have to consider a lot more than Bernoulli's principle and some equation.
A defibrilator would probably be a good start. Hang it by the vending machines.
