ME8693 HEAT MASS TRANSFER (HMT)\
Important questions
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UNIt-1
1.One dimensional steady state heat conduction
2.Internal heat generation
3.heat conduction
Unit-2
1.Hydro dynamic and thermal boundary layer problems
Unit-3
1.Nusselt's theory
2.Heat exchanger
3.Over all heat transfer coefficient problems
Unit-4
1.Black body radiation
2.Shields
Unit-5
1.law of diffusion
2.mass transfer correlation
3.Steady state molecular
**Very important questions are bolded and may be asked based on this topic
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UNIT I CONDUCTION
General Differential equation of Heat Conduction– Cartesian and Polar Coordinates – One
Dimensional Steady State Heat Conduction –– plane and Composite Systems – Conduction with
Internal Heat Generation – Extended Surfaces – Unsteady Heat Conduction – Lumped Analysis –
Semi Infinite and Infinite Solids –Use of Heisler’s charts
UNIT II CONVECTION
Free and Forced Convection - Hydrodynamic and Thermal Boundary Layer. Free and
Forced Convection during external flow over Plates and Cylinders and Internal flow through tubes .
UNIT III PHASE CHANGE HEAT TRANSFER AND HEAT EXCHANGERS
Nusselt’s theory of condensation - Regimes of Pool boiling and Flow boiling. Correlations in boiling
and condensation. Heat Exchanger Types - Overall Heat Transfer Coefficient – Fouling Factors -
Analysis – LMTD method - NTU method.
UNIT IV RADIATION
Black Body Radiation – Grey body radiation - Shape Factor – Electrical Analogy – Radiation
Shields. Radiation through gases.
UNIT V MASS TRANSFER
Basic Concepts – Diffusion Mass Transfer – Fick’s Law of Diffusion – Steady state Molecular
Diffusion – Convective Mass Transfer – Momentum, Heat and Mass Transfer Analogy –
Convective Mass Transfer Correlations.
ME8693 HEAT MASS TRANSFER
UNIT I CONDUCTION
General Differential equation of Heat Conduction– Cartesian and Polar Coordinates – One
Dimensional Steady State Heat Conduction –– plane and Composite Systems – Conduction with
Internal Heat Generation – Extended Surfaces – Unsteady Heat Conduction – Lumped Analysis –
Semi Infinite and Infinite Solids –Use of Heisler’s charts
UNIT II CONVECTION
Free and Forced Convection - Hydrodynamic and Thermal Boundary Layer. Free and
Forced Convection during external flow over Plates and Cylinders and Internal flow through tubes .
UNIT III PHASE CHANGE HEAT TRANSFER AND HEAT EXCHANGERS
Nusselt’s theory of condensation - Regimes of Pool boiling and Flow boiling. Correlations in boiling
and condensation. Heat Exchanger Types - Overall Heat Transfer Coefficient – Fouling Factors -
Analysis – LMTD method - NTU method.
UNIT IV RADIATION
Black Body Radiation – Grey body radiation - Shape Factor – Electrical Analogy – Radiation
Shields. Radiation through gases.
UNIT V MASS TRANSFER
Basic Concepts – Diffusion Mass Transfer – Fick’s Law of Diffusion – Steady state Molecular
Diffusion – Convective Mass Transfer – Momentum, Heat and Mass Transfer Analogy –
Convective Mass Transfer Correlations.