Flow rate and available head relation

Waqar Amin
Messages
8
Reaction score
0
It is stated that as volumetric flow rate increses the available head decreases. Can anybody explain this sentence?
 
Engineering news on Phys.org
The statement has to be put into context, but generally it means that there is an irreversible pressure drop through piping or other conduit which increases as flow rate increases.
 

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 '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

Inconsistent flow rate measurements of an engine diesel fuel
Replies
12
Views
3K
Volumetric flow rate of nitrogen through relieving pressure regulator
Replies
3
Views
2K
Water flow rate and drip surface tension
Replies
10
Views
3K
Calculation of coolant tank size required to feed multiple grinding stations
Replies
4
Views
2K
Flow rate of fluid at a burst leakage in a pipeline due to over pressurization
Replies
5
Views
4K
I have a hydrodynamic loss head question
Replies
6
Views
1K
Picking up on the discussion "Air build-up in a siphon system"
Replies
6
Views
3K
How does a pump trade head for flow rate?
Replies
3
Views
3K
Increasing Flow rate through system
Replies
4
Views
12K
How to maintain flowrate and pressure head in a pump?
Replies
38
Views
4K

Hot Threads

Recent Insights

Back
Top