Heat and Mass Transfer II

At the end of this course, the students should be able to: 1. explain the principle of heat by diffusion under steady or unsteady conditions; 2. explain continuity and momentum equations and their roles in convection heat transfer analysis; 3. recognise convection heat transfer in laminar and turbulent flows; 4. determine heat transfer coefficients in internal and external flows; 5. identify dimensionless groups in convection heat transfer; 6. identify combined modes of heat transfer; 7. perform simple heat exchanger analysis and design; 8. demonstrate an understanding of heat and mass transfer modes and models; 9. demonstrate understanding of the different types of interface reactions; 10. explain comparison of Fick’s and Fourier’s laws and similarities between conduction and mass transfer in stationary systems; and 11. apply principles of heat and mass transfer phenomena to selected processes.

Convection heat transfer: Newton’s law of cooling. Energy equation of convection. Continuity and momentum equations and their roles in convection heat transfer analysis. Convection heat transfer in laminar and turbulent flows. Internal and external flows. Heat transfer coefficients. Dimensional analysis and dimensionless groups in convection heat transfer. Convection heat transfer correlations. Heat exchanger analysis and design. Combined modes of heat transfer. Mass transfer: Mechanisms of mass transfer. Fick’s law of mass diffusion. General diffusion law. Rate equations. Comparison of Fick’s and Fourier’s laws. Equations of mass transfer in stationary systems. Similarities between conduction and mass transfer in stationary systems. Mass transfer coefficient. Electrical analogy of mass transfer. Equimolal counter diffusion. Drying and humidification of solids and gases. Types of dryers. Evaporation. Mass transfer correlations in convective systems.