Reversed carnot heat engine cycle

Question

Question 1: Define the term Clausius Inequality.

Question 2: Derive an expression to find out the efficiency of the Carnot cycle.

Question 3: State the Carnot’s Theorem 1 and Carnot’s Theorem 2.

Question 4: Define the terms reversibility and irreversibility.

Question 5: A refrigerator plant operates on reversed Carnot heat engine cycle. It is maintained at a temperature of -5^oC and the heat rejected at the rate of 5 kW. The atmospheric temperature is 25^oC. Compute the power required to drive the plant.

Question 6: A Carnot (Reversible) engine works between 300^o C and 33^o C. The heat supplied to the engine is 20 kJ. Find out:

a) Efficiency.
b) Work output.
c) Heat rejection.

Question 7: Define the terms:

a) Dryness fraction.
b) Wetness fraction.

Question 8: What do you meant by the term Critical Temperature and Critical Pressure, give their values?

Question 9: Define the terms:

a) Latent heat of fusion.
b) Latent heat of vaporization.

Question 10: Distinguish between super heated steam and dry steam.

Question 11: Draw the labeled layout of a Rankine cycle and as well draw the Ts diagram, Describe.

Question 12: Compute the internal energy of 1 kg of steam at a pressure of 10 bar when the condition of steam is:

a) Wet and dryness fraction is 0.85
b) dry and saturated
c) Super heated with degree of super heat being 50^oC. The specific heat of super heated steam at constant pressure is 2.29 kJ/kg K.