ca 3 407
TRANSCRIPT
7/23/2019 CA 3 407
http://slidepdf.com/reader/full/ca-3-407 1/2
Registration No.:_________________ Set A Test-3
Course: MEC407::TURBOMACHNER!
Se"tion M#E$0 Ti%e A&&o'e(: )0 %inutes Ma*. Mar+s: 30
A&& ,uestions are "o%u&sor.
/ Briefly explain the following
(a) Surging and Choking. 1) %ar+s2 (b) Input and Output velocity triangles for backward and radial blades 1) %ar+s2
/ # iscuss all the perfor!ance para!eters for centrifugal co!pressor in detail and also explain the effect of these
on the perfor!ance of co!pressor. 10 %ar+s2
/ 3 " centrifugal co!pressor co!presses #$ kg%s of air at &'$$$ rp!. he air enters the co!pressor axially and the
conditions at the exit sections are radius * $.#! relative velocity of air at tip * &$$!%s at an angle of +$ $ with
respect to plane of rotation. ake p $& * & bar and $& * #$$,. -ind the torue and power reuired to drive the
co!pressor and also the head developed.
10 %ar+s2
Registration No.:_________________ Set A Test-3
Course: MEC407::TURBOMACHNER!
Se"tion M#E$0 Ti%e A&&o'e(: )0 %inutes Ma*. Mar+s: 30
A&& ,uestions are "o%u&sor.
/ Briefly explain the following
(a) Surging and Choking. 1) %ar+s2
(b) Input and Output velocity triangles for backward and radial blades 1) %ar+s2
/ # iscuss all the perfor!ance para!eters for centrifugal co!pressor in detail and also explain the effect of these
on the perfor!ance of co!pressor. 10 %ar+s2
/ 3 " centrifugal co!pressor co!presses #$ kg%s of air at &'$$$ rp!. he air enters the co!pressor axially and the
conditions at the exit sections are radius * $.#! relative velocity of air at tip * &$$!%s at an angle of +$ $ with
respect to plane of rotation. ake p $& * & bar and $& * #$$,. -ind the torue and power reuired to drive the
7/23/2019 CA 3 407
http://slidepdf.com/reader/full/ca-3-407 2/2
co!pressor and also the head developed.
10 %ar+s2