koxke01
Chemical
- Jan 31, 2008
- 1
Hi,
I have a question concerning air flow conductance in pipe elbows. In a vacuum course I recently followed we learned that the air flow conductance in cylindrical pipes can be calculated with following formula (for laminar flows and only for air)
c = (135 * D^4 * p)/L with D inner diameter of pipe, p pressure and L the length of the pipe. However this is only correct for straight pipes. Does anybody know how to calculate the conductance in an elbow. I heard that it was the same calculation but with a factor added to it but I don't know which factor or where to add in the formula.
Can anybody help me?
Ps: I hope my english is correct
I have a question concerning air flow conductance in pipe elbows. In a vacuum course I recently followed we learned that the air flow conductance in cylindrical pipes can be calculated with following formula (for laminar flows and only for air)
c = (135 * D^4 * p)/L with D inner diameter of pipe, p pressure and L the length of the pipe. However this is only correct for straight pipes. Does anybody know how to calculate the conductance in an elbow. I heard that it was the same calculation but with a factor added to it but I don't know which factor or where to add in the formula.
Can anybody help me?
Ps: I hope my english is correct
