Applied Thermal and Hydraulic Engineering — Winter 2021

Define steam rate, thermal conductivity and ton of refrigeration.

How the subject “ATHE” is related to electrical engineering branch.

Explain with T-Sand p-Vdiagram of Brayton cycle for Gas turbine Power plant.

Write the classification of heat exchangers.

Explain Rankine cycle with P-Vand T-Sdiagram.

What do you mean by cavitation? Explain the cavitation phenomenon in detail. State the places in the turbines and pumps where cavitation is generally occurred.

Describe the simple Vapour compression refrigeration system with T-Sand P-H Diagram.

Briefly explain Net Positive Suction Head (NPSH).

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

State and prove Bernoulli’s equation.

Define critical thickness of insulation. What are its applications?

Plot the temperature distribution along the length of following heat exchangers:(i) parallel flow, (ii) counter flow, (iii) evaporator, and (iv) condenser.

Explain with neat diagram, the arrangement and working of parallel flow heat exchanger.

Describe the absolute pressure, atmospheric pressure and gauge pressure.

Explain bourdon tube pressure gauge with a neat sketch.

Explain the working of a simple aircooling system used for aircraft.

List out various properties of fluid. Define one of them.

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

Derive equation for discharge through orifice meter.

Differentiate between impulse and reaction hydraulic turbines.

‘Aluminum utensils are not preferred for cooking purpose’. Justify.1

Explain with neat sketch the function of main component of centrifugal pump.

Differentiate between Francis and Kaplan turbines.

Explain need of multistaging for reciprocating compressor

Derive expression for LMTD for Counter flow heat Exchanger.