JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

UNIT - I

Brief Introduction to Different Modes of Heat Transfer: Conduction: General heat Conduction equation-initial and boundary conditions. ID Steady State Heat Conduction – Composite Systems – Systems with Heat Generation –Fins 2D Steady State Heat Conduction – Analytical solution for simple boundary conditions – Product Solution -use of shape factors in conduction

UNIT - II

Transient heat conduction: Lumped system analysis-1D Transient Heat Conduction - Heisler charts-semi infinite solid-.Finite Solids: Product solution Finite Difference Methods for Conduction: ID & 2D steady state and simple transient heat conduction problems-implicit and explicit methods.

UNIT - III

Forced Convection: Equations of fluid flow-concepts of continuity, momentum equations-derivation of energy equation-methods to determine heat transfer coefficient: Analytical methods-dimensional analysis and concept of exact solution. Approximate method-integral analysis External Flows: Flow over a flat plate: integral method for laminar flow over a flat plate for different velocity and temperature profiles. Application of empirical relations to variation geometries for laminar and turbulent flows.

UNIT - IV

Internal flows: Types of flow-constant wall temperature and constant heat flux boundary conditions- hydrodynamic &thermal entry lengths; use of empirical correlations. Free Convection: Approximate analysis on laminar free convective heat transfer-Boussinesque approximation-different geometries-combined free and forced convection.

UNIT - V: Boiling and condensation

Boiling curve-correlations for different regimes -- Condensation

: Film and Drop wise condensation - Nusselts theory of film condensation on a vertical plate - assumptions & correlations of film condensation for different geometries. Radiation Heat Transfer: Radiant heat exchange in grey, non-grey bodies, with transmitting. Reflecting and absorbing media, specular surfaces.

REFERENCES:

• 1. Heat Transfer - A basic approach- Necati Ozisik -TMH
• 2. Fundamentals of Heat & Mass transfer- Incropera, Dewitt, Bergman, Lavime - wiley Publication
• 3. Heat Transfer/ P.S. Ghoshdastidar/ Oxford Press
• 4. Heat Transfer-S.P. Sukhatme- Univeristies Press
• 5. Fundamentals of Engineering Heat Transfer-R.C. Sachdeva-New age Science.
• 6. Heat Transfer/ P.K. Nag /TMH
• 7. Engg. Heat & Mass Transfer/ Sarit K. Das/Dhanpat Rai
• 8. Introduction to Heat Transfer/SK Som/PHI
• 9. Principals of Heat Transfer/Frank Kreith/Cengage Learning