How are the heat exchangers classified? Describe the plate type heat exchanger in detail.

Two very large parallel plates with emissivity 0.3 and 0.8 exchange radiative energy. Determine the percentage reduction in radiative energy transfer when a polished aluminium radiation shield ( = 0.04) is placed between them.

Spectral Intensity

Transmissivity

Thermal Equilibrium

Thermal diffusivity

Specific Heat Capacity

Reynolds number

Grashoff Number

Prandtl number

Biot number

Nusselt number

Derive the expression for the time required for a solid to reach a certain temperature in case of transient conduction using lumped capacitance method.

Explain thermal insulation and why is it needed? Also, discuss the various types of insulating materials.

Derive the expression for thermal resistance for the composite plane wall shown in Figures given below. Assume area of cross-section to be 'A' for the Fig. a.

Derive the expression for heat conduction through a cylinder. Assume suitable dimension of the cylinder and the temperature difference across the cylinder.

Discuss the various modes of heat transfer in detail.

Surge Tanks

Bioenergy

Magneto hydrodynamic Power Generation