To run a Turbine, Which one is very important, Velocity or Head ?

Answer 1

Grant's formula shows that head and velocity are both important. You didn't say whether this was a steam, gas or water turbine? Obviously a turbine will not turn any faster than the velocity will allow it to spin. Most turbines have governors that limit the revolutions. That keeps them from flying apart at high speed, however turbines on a high performance race car get to VERY high rpms, but they are small. Turbines at an electric power plant usually spin at 1800 rpms (some smaller high pressure ones spin at 3600).

Answer 2

Head is more important than velocity. The turbines don't actually turn that fast. Without the head (pressure) the turbines can't produce much power.

Answer 3

Both. Head without velocity is just static pressure. Velocity without head hasn't enough force to spin the turbine.

Answer 4

head...Without the head pressure the incoming velocity wont matter and it will just die in the turbine. No equations or anything here. I worked in a plant.

Answer 5

I think velocity and head are the same thing really.
The important things are pressure (as in head) and volume (as in flow) both are equally important.

Answer 6

The power from flowing water is:

P = Water Density(kg/m^3) * g(m/sec^2) * Head(m) * Flow Rate (m^3 / sec).

Answer 7

Ithink head is more important in this case ..