IIT BHU Varanasi Syllabus Ceramic Heat and Mass Transfer
Heat and Mass Transfer
Heat Transfer: Steady state conduction with and without heat source in one dimension for single, composite plane,
cylindrical and spherical walls. Thermal insulation and selection of insulating materials. Unsteady heat conduction;
use of charts.
Concept of film resistance and thermal boundary layer, heat transfer coefficient solution of laminar forced
convection of flat plate, working formulae and dimensionless correlation for forced convection inside tubes, annular
spaces and normal to single tube banks. Elementary idea of Reynolds, Prandtl and colburn analogies. Current,
counter-current and cross-flow heat exchangers. Code in heat exchangers design.
Basic laws of radiative heat transfer. View factors and derivation for simple systems and also their determination
using charts. Radiative heat transfer in glass melting and calculations of radiative heat transfer in furnaces.
Mass Transfer: Mass transfer by molecular diffusion. Mass Transfer in system of fluids, granular solids and
fluidized beds. Mass transfer coefficient and their correlation. Height of Transfer Unit (H.T.U.) and Number of
Transfer Units (N.T.U.) calculations. Mass Transfer applied to absorption. Continuous contact equipment for gasabsorption. Psychometry; Humidity, wet and dry bulb temperatures. Adiabatic humidification and dehumidification.
Pumping of fluids calculation/design.
Drying: Internal flow of moisture within the solids, surface evaporation, drying shrinkage, estimation of drying
rates and achievement of maximum drying rate. Detail study of the various driers used in ceramic industries: Tray
driers, tunnel driers, drum driers, vacuum driers and spray driers.