Engineering Thermodynamics & Heat transfer — Summer 2021

Differentiate between macroscopic approach and microscopic approach.

What are different types of Thermodynamic Systems? Explain with suitable example.

State the first law of thermodynamics. Mention its success and limitations?

Define (i) Enthalpy, (ii) Entropy and (iii) Exergy.

Define Irreversibility. Explain internal irreversibility.

State Kelvin-Plant statement of second law of thermodynamics. Verify that violation of Kelvin Plank statement leads to violation of Clausius statement.

Write a short note on Carnot Cycle (Reversible Cycle).

Define the following terms: (a) Thermal energy reservoir (b) Heat Pump (c) Mechanical energy reservoir.

Explain the concept of available and unavailable energy. When does the system become dead.

Write a short note on phase rule.

What do you mean by PMM1 and PMM2 ?

Explain the process of steam formation using h – s chart.

Derive general steady flow energy equation.

State silent features of shape factor.

Explain with neat sketch Boundary Layer concept.

Explain conduction and flow of heat through a composite wall when resistances are in series.

Differentiate between free convection and forced convection.

Explain the following laws: (a) Fourier’s Law of heat conduction (b) Newton’s Law of cooling.

Explain & classify types of Convection.

Explain detailed classification of heat exchangers.

Explain & draw the pool boiling curve.

Define the term boiling. Sketch the boiling curve and explain key regimes and features.

Explain emissivity and absortivity of a surface.

Differentiate between Black Body and Gray Body.

Derive the equation for logarithmic mean temperature difference (LMTD) for parallel flow heat exchanger.