How does homogeneous system differ from heterogeneous system?
[3 marks]Define: (i) Critical Point, (ii) Triple Point (iii) Thermodynamic Equilibrium
[4 marks]Apply first law of thermodynamics to steady flow process and derive steady07 flow energy equation.
[ marks]Discuss Concept of PMM1 and PMM2.
[3 marks]Explain 1st law of thermodynamics for a closed system undergoes a change of04 state.
[ marks]State and prove Carnot theorem for heat engine. Also write statements of Carnot07 theorem in context of refrigerator and pump.
[ marks]Acentrifugal air compressor delivers 12kg of air per min. The inlet and outlet conditions are C =12m/sec, P =1 bar, V = 0.5 m3/kg and C =90m/sec, P =8 bar, V =0.14m3/kg. The increase in enthalpy of air passing through compressor is2 150 Kj/kg. The heat loss to the surroundings is 700 Kj/min. Calculate (i) Motor power required to drive the compressor (ii) Ratio of inlet to output pipe diameter. Assume that inlet and discharge lines are at same level.
[ marks]Explain the principle of increase of entropy.
[3 marks]What are characteristic of entropy? Prove that entropy is property of the system.
[4 marks]Show the equivalence of Clausius and Kelvin-Plank statement of second law of07 thermodynamics.
[ marks]State the comparison of Carnot & Rankine cycles.
[3 marks]An air standard Otto cycle has a compression ratio of 8. At the start of the compression process, the temperature is 26°Cand the pressure is 1 bar. If the04 maximum temperature of the cycle is 1080°C. Calculate (i) The heat supplied per kg of air, (ii) The thermal efficiency of the cycle.
[ marks]Determine expression for air standard efficiency of Otto cycle with neat sketch07 of P-Vand T-Sdiagram.
[ marks]With neat sketch state process in open cycle gas turbine power plant (Brayton Cycle).
[ marks]Determine expression for efficiency of Rankine cycle with neat sketch of their04 main components, P -Vand T-Sdiagram.
[ marks]An engine working on diesel cycle has cylinder bore of 190 mm and piston stroke of 230 mm. The clearance volume is 290cm3. The fuel injection takes07 place at constant pressure for 6% of the stroke. Determine the air standard cycle efficiency.1
[ marks]Draw the schematic, p-h and T-Sdiagrams for simple vapour compression cycle.
[ marks]State and explain factors effecting the performance of simple VCR system.
[4 marks]Describe with neat sketch for Bell – Coleman (Joule cycle) for air refrigeration07 and derive its COP equation.
[ marks]Write comparison for Otto, Diesel and Dual cycle.
[3 marks]Illustrate working of reaction turbine with neat sketch.
[4 marks]State methods of governing of steam turbine and explain any one with neat07 sketch.
[ marks]Define the following: (i) Mean effective pressure, (ii) Brake thermal efficiency, (iii) Relative efficiency.
[ marks]Illustrate working of impulse turbine with neat sketch.
[4 marks]List out methods of steam turbine compounding and explain any one with neat07 sketch in detail.
[ marks]