What is critical speed, What is critical speed?

What is critical speed

What is critical speed?

Comments & Conversion

Expert

Verified

It refers to the speed at which machine vibrates most violently. It is because of several reasons, like the imbalance or harmonic vibrations which are set up by entire machine. In order to minimize the damage, turbine must be quick through the known critical speed as quickly as possible.

Related Questions in Mechanical Engineering

Q : Lubricating oil in turbines Except the

Except the lubrication, explain the other two functions of the lubricating oil in some of the turbines?

Q : Aim of an airspeed indicator in aircraft

What is the main aim of an airspeed indicator in aircraft?

Q : Problem on discharge of water In the

In the below system, d = 6 in., D = 12 in., Δz1 = 6 ft, and Δz2 = 12 ft. The discharge of water in the given system is 10 cfs. Is the machine a turbine or a pump ? Determine the pressures at points A and B? Neglect head losses. Suppos

Q : Problem on turbulent flow The

The approximate equation for the velocity distribution in a rectangular channel with the turbulent flow is 655_turbulent flow.jpg

Q : Problem on magnitude of force A

A horizontal pipe of dimension 540 mm diameter carrying 0.6 m3/s splits into two horizontal pipes of 300 mm diameter with 60% of the flow and another of 150 mm diameter with 40% of the flow. Find out the magnitude and direction of the force

Q : Explain steam turbine diaphragm Steam

Steam turbine diaphragm: Steam turbine includes of phases, number and size of the phases depends on the break horse-power of the turbine. The phase has set of moving and fixed blades. Moving blades are joined to th

Q : Petroleum technology theories for the

theories for the origin of petroleum, methods for detection of petroleum deposits, fractional distillation

Q : What is carnot engine Explain the term

Explain the term Carnot engine?

Q : What is cotter joint Explain what is

Explain what is meant by the Cotter joint?

Q : Calculating liquid composition There

There is a 35% MeOH/water mix to feed to a flash at 100 Ib- mole /hr and 1 atm. We want a vapour composition of 60 % MeOH. What does the vapour flow rate need to be? What is the liquid composition? Give the equation of the operation line?

Discover Q & A

Leading Solution Library

Avail More Than 1456602 Solved problems, classrooms assignments, textbook's solutions, for quick Downloads

No hassle, Instant Access

Start Discovering

18,76,764

1945431
Asked

3,689

Active Tutors

1456602

Questions
Answered

Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!

Submit Assignment