Syllabus - Heat Transfer (CM-502)

Chemical Engineering

Heat Transfer (CM-502)

V-Semester

Unit I

Conduction

Modes of heat transfer one dimensional and two dimensional, heat rate equations, Theory of insulation, critical radius calculations, types of insulation material, conduction through slab, cylinder and sphere.

Unit II

Convective heat transfer

Heat transfer in boundary layer and in films, natural and forced convection, co/counter/cross current contacting for heat transfer, individual and overall heat transfer coefficient, fouling factor.

Unit III

Radioactive heat transfer

Black body radiation, concept of shape factor, methods of determination of shape factor, radiation exchange in enclosure with black surfaces

Unit IV

Heat transfer under phase change conditions

Boiling and condensation of pure components, heat flux temperature diagram for boiling and condensation under vertical and horizontal surfaces, nucleate & pool boiling, effect of surface condition on condensation, correlation for heat transfer under condensation. Evaporation- Type of evaporators and their applications single and multiple effect evaporators, design and operation of forward– backward and mixed feed operations, effect of boiling point elevation and hydrostatic head vapour recompression.

Unit V

Heat Exchange equipment

Introduction to general design of double pipe ,shell and tube exchangers, condensers, extended surface equipments, heat exchanger equation – coil to fluid, jacket to fluid.

Course Objective

To understand the fundamentals of heat transfer mechanisms in fluids and solids and their applications in various heat transfer equipment in process industries.

Practicals

To determine the thermal conductivity of metal rod.
To determine the equivalent thermal conductivity of composite wall.
To determine heat transfer coefficient in force convection.
To determine heat transfer coefficient in Natural convection.
To determine heat transfer coefficient with the help of Stefan Boltzmann Apparatus.
To calculate emissivity of the test plate by emissivity measurement apparatus.
To determine heat transfer coefficient in double pipe heat exchanger.
To study the heat transfer characteristics of a shell and tube heat exchanger (heating/cooling) of water.
To determine heat transfer coefficient in parallel and counter flow heat exchanger.
To measure the rate of evaporation using an open pan evaporator.
To measure the rate of condensation of pure water vapour and to determine the heat transfer coefficient.
Demonstrate the film-wise drop-wise condensation and determination of the heat transfer coefficient.
To study the single effect evaporator and find out the heat transfer coefficient.

Reference Books

Donald Q. Kern; Process Heat Transfer; Tata McGraw Hill.
Alan J. Chapman; Heat Transfer; Collier McMillan.
Rao Y.V.C; Heat Transfer; PHI