Applied Thermodynamics - II, Question Paper of Mechanical Engineering 4th Semester, Download Question Paper Applied Thermodynamics 4

Roll No.

B. TECH (IE, ME) (Sem.-4th)

APPLIED THERMODYNAMICS-II

Subject Code: ME-208

Paper ID: [A0811]

Time: 3 Hrs.

INSTRUCTIONS TO CANDIDATE:

1. Section-A is compulsory.

2. Section-B Attempt any four questions.

3. Section-C Attempt any two questions.

                                                SECTION-A

Q. 1.(a) What do you understand by term detonation?

(b) What is meant by delay period?

(c) What are different types of supercharger?

(d) How rotary compressors are classified?

(e) Define slip factor.

(f) Define angle of attack.

(g) What is surging in axial flow compressor?

(h) How gas turbine differs from steam turbine?

(i) What is the principle of Jet propulsion?

(j) What is a turbojet engine?

                                                Section-B

Q. 2. Discuss the effect of detonation on engine performance.

Q. 3. Derive an expression for efficiency of roots blower in terms of pressure ratio and ratio of specific heats.

Q. 4. A centrifugal compressor delivers 0.5 kg of air per second at a pressure of 1.8 bar and

1000C. The intake conditions are 200C and 1 bar. Find the isentropic efficiency of the

compressor and the power required to drive it. Take n = 1.65 and CP = 1 kJ/kg K.

Q. 5. Differentiate between a closed cycle gas turbine and an open cycle gas turbine.

Q. 6. Describe the principle of working of a turboprop engine.

                                                Section-C

Q. 7. Discuss briefly different methods of governing of I C engine.

Q. 8. A rotary air compressor receives air at a pressure of 1 bar and 170C, and delivers it at a pressure of 6 bar. Determine, per kg of air delivered, work done by the compressor and  heat exchanged with the jacket water when the compression is isothermal, isentropic and by the relation pv1.6=constant.

Q. 9. A gas turbine plant consists of two stage compressor with perfect intercooler and a single stage turbine. If the plant works between the temperature limits of 300 K and 1000 K and pressure limit of 1 bar and 16 bar, find the net power of the plant per kg of air. Take specific heat at constant pressure as 1 kJ/kg K.