ATD 2

KITE COLLEGE OF PROFESSIONAL ENGINEERING AND SCIENCES

DEPARTMENT OF MECHANICAL ENGG,

III B.Tech II MID Examination

Sub: ATD-II                                                                                                    Date:

Branch: MECH                                     Time: 1hr                             Max marks: 10

Answer any Two questions                                                                                     2x5=10 M

1.      (a)  Mention importance of steam condenser and give the difference between jet condenser and

       surface condenser.

(b) Explain with neat sketch down flow surface condenser?

2.      (a) Mention any few points of comparison between impulse and reaction turbine.

(b) Define degree of reaction? And prove it is 50% for reaction turbine.

3.      (a) What is compounding? and why compounding is required?

(b) Explain with neat sketch

(i) Velocity compounding. (ii)  Pressure compounding and

(iii) Pressure - velocity compounding.

4.      (a) Explain methods to improve gas turbine cycle efficiency.

(b) A gas turbine consists of two stage compressor with perfect intercooler and a single stage

       turbine. If the plant works between the temperature limits of 300K and 1000K and 1 bar and

      16 bar. Find the net power of the plant per kg of air. Take C_P=1 KJ/kg K.

KITE COLLEGE OF PROFESSIONAL ENGINEERING AND SCIENCES

DEPARTMENT OF MECHANICAL ENGG,

III B.Tech II MID Examination

Sub: ATD-II                                                                                                      Date:

Branch: MECH                                       Time: 1hr                             Max marks: 10

Answer any Two questions                                                                                     2x5=10 M

1.      (a)  Mention importance of steam condenser and give the difference between jet condenser and

       surface condenser.

(b) Explain with neat sketch down flow surface condenser?

2.      (a) Mention any few points of comparison between impulse and reaction turbine.

(b) Define degree of reaction? And prove it is 50% for reaction turbine.

3.      (a) What is compounding? and why compounding is required?

(b) Explain with neat sketch

(i) Velocity compounding. (ii)  Pressure compounding and

(iii) Pressure - velocity compounding.

4.      (a) Explain methods to improve gas turbine cycle efficiency.

(b) A gas turbine consists of two stage compressor with perfect intercooler and a single stage

       turbine. If the plant works between the temperature limits of 300K and 1000K and 1 bar and

      16 bar. Find the net power of the plant per kg of air. Take C_P=1 KJ/kg K.