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1997 Course Applied Thermodynamics - III

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Total No. of Questions : 10] P1135 [Total No. of Pages :3 [3864] - 12 B.E. (Mech. S/W) APPLIED THERMODYNAMICS - III (1997 Course) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) Answers to the two sections should be written in separate books. 2) Answer any three questions from section I and any three questions from section II 3) Neat diagrams must be drawn wherever necessary. 4) Figures to the right indicate full marks. 5) Use of electronic pocket calculator is allowed. 6) Assume suitable data, if necessary. SECTION - I Q1) a) b) c) What are static and stagnation properties? Explain. [4] Explain with sketches the following i) Mach line, ii) Mach angle, iii) Mach cone, iv) Mach wave, [4] With usual notation derive the following relation for adiabatic flow [8] Po = P+ Q2) a) b) 2 9 2 2 + M + 2 K . M 4 + ........ 2 4 12 2 KM Explain function and applications of Nozzles. [5] Steam enters a convergent - divergent nozzle at pressure of 22 bar and temperature of 3000c the exit pressure is 4 bar steam flow rate is 11 kg/ sec find [12] i) Velocity of steam at throat and exit. ii) Area of nozzle at throat and exit in mm2. Q3) Write short notes on (any four) : a) Compounding of turbines. b) Comparison of steam turbine and steam engine. c) Zone of silence and zone of action. d) Surface condensers. e) Air pumps. [16] P.T.O.

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