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Critical pressure in a nozzle is the pressure at which the flow of material through the nozzle reaches its maximum. Beyond which any increase in pressure will not result in an increase in flow. The point at which the velocity of a fluid in the throat of the nozzle reaches the local speed of sound, creating a sonic wave, or a sonic choke.
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Why is nozzle control governing not employed a reaction turbine?
in reaction turbine pressure compounding is employed as every stage has a set of nozzle ring nozzle control is not feasible.
Why Fluid Speed Increases in the Divergent Portion of a Convergent-Divergent nozzle?
Because the fluid is allowed to expand in the nozzle it increases velocity to fill in the voids created by the shape of the nozzle. The convergent point of the nozzle acts like a bottleneck trying to slow the fluid and compress it into the reduced crosssection of the nozzle. As it leaves the minimum crosssection it expands into the divergent spaces of the nozzle increasing in velocity as it expands. ++_+ No: it gains velocity through the convergence but in the diverging section, trades velocity for pressure.
what is purpose of nozzle in steam turbine?
It sends hot gases from the combustion chamber to the 1st stage turbine blades at the correct angle and speed
What is the nozzle coefficient of a bit nozzle?
0.42
How does a wedco model 40730 nozzle work?
The Wedco Nozzle is a CARB compliant spill-proof gas can nozzle. With the nozzle in place you can invert your gas can and it will not leak. Then simply push the nozzle lock and push the nozzle against the rim of the filling throat of the tank you're filling to start the flow of fuel. If you lift the nozzle away from the rim the flow stops.
How do you calculate the exit pressure of a nozzle?
How to calculate the ratio of the inlet-to-exit area of the nozzle
Why does pressure drops in a nozzle?
By Bernoulli's principle velocity head x pressure head is always constant So as velocity increases at the nozzle the pressure falls down automatically.
What is nozzle pressure?
Pressure build up due to restricted orifice.
How do you adjust the nozzle opening pressure of injector on diesel engines?
by rotating the ring which cover the opening of the nozzle
Why do rockets have a Diverging Nozzle at the exit?
To increase the exhaust velocity. +++ Pressure, not velocity. A gas flowing through a divergent nozzle gains pressure at the cost of speed.
What is use of jet nozzle?
To increase thrust or pressure
What is the difference between Diffuser and nozzle?
A nozzle is a device which increases the velocity of fluid by decreasing the Pressure but contrary to it Diffuser is a device that increases the Pressure of fluid at the expense of its velocity
Why is nozzle control governing not employed a reaction turbine?
in reaction turbine pressure compounding is employed as every stage has a set of nozzle ring nozzle control is not feasible.
Why can you only get 3 or 4 gals of gas in tank before nozzle trips?
Generally this happens because of the amount of gas flowing from the nozzle. The nozzle "trips" due to back pressure. When the tank is full, gas pushes back on the nozzle and it shuts off. If the amount of fuel coming out of the nozzle fills up the filler tube going to your tank it also will cause back pressure and shut off the nozzle.
Why does gas nozzle at pump stop when gas tank is empty?
It doesn't. It stops when the tank is full. Assuming you are asking why the gas nozzle shuts off when the tank is full, I am not an engineer but I would guess that there is some type of pressure sensor in the nozzle that reads back pressure coming from the neck of the vehicle fuel tank and when that pressure reaches a certain point, it shuts the nozzle off.
How pressure of steam decreases while flowing in a nozzle?
yes
In divergent nozzle pressure will increase or decrease?
If the flow is subsonic the pressure will increase, if however it is supersonic the pressure will decrease.
