Question 1:
Write down comprehensive notes on following:
a) Thermal radiation and the electromagnetic spectrum.
b) Emissivity and the absorpivity.
c) Superposition rule and symmetry rule.
Question 2:
Two concentric cylinders having the diameters of 10 cm and 20 cm have a length of the 30 cm. Find out the view factor between the open ends of the cylinders.
Question 3:
Critically explain the effectiveness of heat exchanger. Derive the expression for effectiveness of double pipe parallel flow heat exchanger. Describe the assumptions made.
Question 4:
Write down comprehensive notes on following:
a) Aerodynamic heating
b) Ablative cooling.