Question: In a single stage impulse turbine the blade angles are equal and the nozzle angle is (20^{circ}). The velocity coefficient for the blade is 0.83.

In a single stage impulse turbine the blade angles are equal and the nozzle angle is $20^{\circ}$. The velocity coefficient for the blade is 0.83. Find the mzximum blade efficiency possible. If the actual blade efficiency is $90 \%$ of maximum blade efficiency, find the possible ratio of blade speed to steam speed.

Step by Step Solution

★★★★★

3.22 Rating (146 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Introduction Mechanical Engineering Questions!

Write a procedure named PackedToAsc that converts a 4-byte packed decimal number to a string of ASCII decimal digits. Pass the packed number to the procedure in EAX, and pass a pointer to a buffer...

Question : The steam leaves the nozzle of a single stage impulse turbine at900 m/s. The nozzle angle is 20, the blade angles are 30 at inlet and outlet andfriction factor is 0.8. Determine the...

For maximum blade efficiency of a single stage impulse turbine, the blade speed is equal to: (a) $\frac{\cos \alpha}{2}$ (b) $\cos \alpha$ (c) $\cos ^{2} \alpha$ (d) \(\frac{\cos ^{2}...

Maximum blading efficiency of a single stage impulse turbine having symmetrical blades and nozzle angle is _____

In a single stage impulse turbine, nozzle angle is $20^{\circ}$ and blade angles are equal. The velocity coefficient for blades is 0.85 . calculate the maximum blade efficiency possible. If the...

In a single row impulse turbine, the blade speed is $200 \mathrm{~m} / \mathrm{sec}$, nozzle angle is $18^{\circ}$. If the steam enters with an absolute velocity of \(300 \mathrm{~m} /...

Calculator View Instructions Question No: 0 3 This is a subjective question, hence you have to write your answer in the Text - Field given below. Steam enters a single stage impulse turbine. The...

Question 1 A steam power cycle with regeneration as shown below on the T-s diagram employs a single open feedwater heater for efficiency improvement. The fluids mix with each other in an open...

( b ) In a single stage impulse turbine the isentropic enthalpy drop of 2 0 0 k J k g occurs in the nozzle having efficiency of 9 6 % and nozzle angle of 1 5 . The blade velocity coefficient is 0 . 9...

Q. 1. Explain in brief the functions of a Finance Manager? Q. 2. Explain various methods of raising fund with their merits and demerits. Q. 3. Discuss in detail various factors affecting the dividend...

In a single stage steam turbine saturated steam at 10 bar is supplied through a convergent divergent steam nozzle of $20^{\circ}$ angle. The mean blade speed is $400 \mathrm{~m} / \mathrm{s}$....

Critz Company was started on January 1, 2016. During the month of January, Critz earned $7,500 of revenue and incurred $4,800 of expenses. During the remainder of 2016, Critz earned $86,000 and...

Norman was the sole shareholder and operator of two successful video arcades. While he was in the hospital with heart problems, his wife, Helen, filed for divorce and took a number of legal steps,...

If P and Q are factors of an algebraic expression such that PQ = 0 then P = 0 or Q = 0 Show how you can use this principle to help you solve the following quadratic equations: (a) 4x ^ 2 - 9x = 0 (b)...

Discuss the reasons for the per- ceived increasing shortages of skills.

What are the advantages of special casting techniques?

Briefly, explain hot chamber and cold chamber die casting.

Justify the statement that casting is most versatile forms of a mechanical process for producing components.

What is the tax owed? Simpylify your answer and round to the nearest dollar as needed. Use the marginal tax rates in the table below to compute the tax owed in the following situation. Sarah is...

Francis Peabody just won the $89,000,000 California State Lottery. The lottry offers the winner a choice of receiving the winnings in a lump sum or in 26 equal annual installments to be made at the...

in a sole properitship do you need your name in the regsitered business name