Velocity of escaping gas while depressurizing a tank

AI Thread Summary
To calculate the velocity of gas escaping through a valve in a tank pressurized at 2 psig, Bernoulli's equation can be applied, which relates static pressure to velocity pressure. The formula p = 1/2 rho * V^2 indicates that the pressure (p) is proportional to the density (rho) and the square of the velocity (V). Knowing the area of the orifice is essential for accurate calculations. The discussion emphasizes the importance of using fluid dynamics principles to determine escape velocity. Understanding these calculations is crucial for safe and efficient tank depressurization.
sahilk
Messages
3
Reaction score
0
HI, anyone know how to calculate the velocity of a gas escaping through a valve in a rank ? The gas is pressurized at 2psig and I can get the area of the orifice if necessary.


Thanks.
 
Engineering news on Phys.org
The velocity is roughly equal to what Bernoulli's equation would predict, converting static pressure to velocity pressure.

p=1/2 rho * V^2
 

Thread 'Query on Isentropic relationships (such as PV^gamma = constant)'

Hi all, I have a question. So from the derivation of the Isentropic process relationship PV^gamma = constant, there is a step dW = PdV, which can only be said for quasi-equilibrium (or reversible) processes. As such I believe PV^gamma = constant (and the family of equations) should not be applicable to just adiabatic processes? Ie, it should be applicable only for adiabatic + reversible = isentropic processes? However, I've seen couple of online notes/books, and...
View full post »
Thread 'How can I find the cleanout for my building drain?'

Thread 'How can I find the cleanout for my building drain?'

I am a long distance truck driver, but I recently completed a plumbing program with Stratford Career Institute. In the chapter of my textbook Repairing DWV Systems, the author says that if there is a clog in the building drain, one can clear out the clog by using a snake augur or maybe some other type of tool into the cleanout for the building drain. The author said that the cleanout for the building drain is usually near the stack. I live in a duplex townhouse. Just out of curiosity, I...
View full post »

Thread 'Dry sump pump issue'

I have an engine that uses a dry sump oiling system. The oil collection pan has three AN fittings to use for scavenging. Two of the fittings are approximately on the same level, the third is about 1/2 to 3/4 inch higher than the other two. The system ran for years with no problem using a three stage pump (one pressure and two scavenge stages). The two scavenge stages were connected at times to any two of the three AN fittings on the tank. Recently I tried an upgrade to a four stage pump...
View full post »

Similar threads

Vacuum furnace argon fill system — advice needed
Replies
3
Views
109
How to find velocity of gas pump flowing into car tank
Replies
6
Views
4K
Pressure profile of a gas flow through an orifice
Replies
10
Views
6K
Optimization of barrel length in pneumatic cannons
Replies
26
Views
6K
Calculate the time it takes for gas to fill a chamber (high P -> low P)
Replies
8
Views
6K
How Does Temperature Affect Pressure in a Sealed Fuel Tank?
Replies
3
Views
2K
I How to calculate the mass of gas in a tank?
3
Replies
109
Views
7K
Calculating velocity of steam through orifice
Replies
1
Views
5K
Liquefied Petroleum Gas (GLP) Volume in Tanm
Replies
2
Views
2K
Getting an exact amount of Methane out of a cylinder
Replies
10
Views
2K

Hot Threads

Recent Insights

Back
Top