Mysterrose
Mechanical
Ok, have a tank of Argon which I am using to posotively pressurize a small container. Positive pressure is only to keep outside air out of container ensuring my small container is pretty much all argon in it.
What I'm trying to figure out is how long my tank will last. I know I need to calculate the volumetric flow rate passing through my small container in a given amount of time, but all I know is the following
1) Have 20L tank of Argon
2) Small container is approx. 1 cubic ft.
3) Pressure regulator at argon tank will basically be set as low as possible just to keep posotive pressure going to my small container (assuming it's going to be somewhere in 1 to 5 psi depending on losses through the system which shouldn't be all that much)
4) Inlet pipe and outlet pipe to small container are 1/4". I did plumb in some valves if I want to restrict the flow at all.
What I'm stuck on is calculating flow as I only know the inlet pressure and inlet and outlet area.
Even if I measure the outlet pressure which would basically tell me my pressure drop through the system I still don't know my flow rate other than I can use the Bernoulli equation to calculate ratio of flow at inlet compared to flow at outlet.
Mass convservation of mass just told me velocity in equals velocity out since density is same and inlet and outlet oriface area are the same.
There's got to be some equation I am forgetting here or not applying right.
What I'm trying to figure out is how long my tank will last. I know I need to calculate the volumetric flow rate passing through my small container in a given amount of time, but all I know is the following
1) Have 20L tank of Argon
2) Small container is approx. 1 cubic ft.
3) Pressure regulator at argon tank will basically be set as low as possible just to keep posotive pressure going to my small container (assuming it's going to be somewhere in 1 to 5 psi depending on losses through the system which shouldn't be all that much)
4) Inlet pipe and outlet pipe to small container are 1/4". I did plumb in some valves if I want to restrict the flow at all.
What I'm stuck on is calculating flow as I only know the inlet pressure and inlet and outlet area.
Even if I measure the outlet pressure which would basically tell me my pressure drop through the system I still don't know my flow rate other than I can use the Bernoulli equation to calculate ratio of flow at inlet compared to flow at outlet.
Mass convservation of mass just told me velocity in equals velocity out since density is same and inlet and outlet oriface area are the same.
There's got to be some equation I am forgetting here or not applying right.