Applied Thermal and Hydraulic Engineering — Winter 2022

Explain any one method of improving thermal efficiency of Rankine cycle in detail.

Why aircraft cooling is required? Explain it.

State Bernoulli’s equation and write assumptions and applications of Bernoulli’s equation.

Briefly explain Net Positive Suction Head (NPSH).

Enlist the different methods of improving efficiency of Brayton cycle and explain any one in detail.

Explain the following terms: (i) Viscosity (ii) Capillary tube (iii) Surface tension.

What is Euler’s equation of motion? Derive Euler’s momentum equation.

Give comparison between open cycle and closed cycle gas turbines.

Explain with schematic diagram open cycle gas turbine with regeneration.

What is Manometer? Explain bourdon tube pressure gauge with a neat sketch.

What is the function of fins in heat transfer? State applications of fins.

Explain draft tube and its importance.

What is refrigerant? What are the desirable properties of refrigerant?

Explain in brief about various modes of heat transfer.

Explain the concept of overall heat transfer coefficient.

Draw the neat and labeled sketch of vapour compression refrigeration cycle with T-Sand P-h diagram.

Explain cavitation in detail.

Write short note on classification of centrifugal pump.1

Classify Francis Turbine. With neat sketch explain working and construction of Francis Turbine.

Give broad classification of notches and weirs.

Define (1) Surface Tension, (2) capillarity, (3) gauge pressure and (4) fluid.

Explain the working of a simple air cooling system used for aircraft.

Explain in brief about thermal contact resistance.

Sate and prove Hydrostatic law.

Derive expression for LMTD for parallel flow heat Exchanger.