Basic and Applied Thermodynamics — Summer 2024

Define thermodynamics. What is Applied Thermodynamics?

Give any four comparison between microscopic approach and macroscopic approach of thermodynamics.

Identify the difference between (i) Open system and closed system (ii) System and surrounding

State the first law of thermodynamics.

What do you mean by PMM1?

Gas enters a nozzle at 15 bar and 1500k with a velocity of 30 m/s. The pressure at the exit of nozzle is 5 bar. If the nozzle efficiency is 90%, calculate the actual exit velocity. Neglect changes in P.E.and heat exchange between nozzle and surrounding. Take Cp = 1.005 KJ/Kg K

Give kelvin-plank statement and clausius statement for the 2nd law of thermodynamics. Also explain PMM2.

Differentiate between open cycle and closed cycle of gas turbine.

In an otto cycle the temperature at the beginning and end of the isentropic compression are 316 Kand 595 Krespectively. Determine the air standard efficiency and compression ratio.

Show rankine cycle on p-v and T-s diagram and explain the processes involved. Also show the mechanical system to show different processes of rankine cycle.

What are the limitations of carnot cycle?

Draw and explain simple brayton cycle.

Write comparison of otto, diesel and dual cycle.

Briefly explain about bell coleman cycle.

Define (i) C.O.Pand (ii) Tonne of refrigeration

Draw and explain simple vapour compression cycle of refrigeration.

What is compounding of steam turbine.

Give a difference between impulse and reaction type of steam turbine.

What is governing of steam turbine? Explain various methods of governing a steam turbine.

State zeroth law of thermodynamics.

What are the limitations of first law of thermodynamics?

Explain throttling process. Apply steady flow energy equation and prove that enthalpy of fluid remains constant during throttling process. OR1

Define optimum pressure ratio in actual Bryton cycle

The engine working on ideal otto cycle. The temperature at the beginning and the end of compression is 60ºC and 450ºC. Determine the standard efficiency and compression ratio.

Write a short note on entropy.