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FUNDAMENTALS OF HEAT AND MASS TRANSFER
Contents
1 An overview of heat transfer
Introduction
Heat transfer
Modes of heat transfer
Combined modes of heat transfer
Dimensions and units
Solved problems
Exercise problems
2 Steady state conduction
Conduction
The ceteral model for condition (one dimensional)
Conduction other shapes
One dimensional steady state heat conduction with variable heat
Critical thickness of insulation
Mean area concept
Parallel flow
Solved problems
Objective questions
Exercise problems
3 Conduction with heat generation
Introduction
Steady state one dimensional conduction in a slab with uniform heat
Generation
Steady state radial heat conduction in cylinder with uniform heat generation
Radial conduction in sphere with uniform heat generation
Conclusion
Solved problems
Objective questions
Exercise problems
4 Heat transfer with extended surfaces (FINS)
Introduction
Fin model
Temperature calculation
Heat flow calculation
Fin performance
Circumferential fins and plate fins of varying sections
Optimisation
Fin with radiation surroundings
Contact resistance
Numerical method
Solved problems
Objective questions
Exercise problems
5 Two dimensional steady heat conduction
Introduction
Solution to differential equation
Graphical method
Numerical method
Electrical analogy
In the finite difference formulation
Solved problems
Exercise problems
6 Transient heat conduction
Introduction
A wall exposed to the sun
Lumped parameter model
Semi infinite solid
Periodic heat conduction
Transient heat conduction in large slab of limited thickness,long cylinders
And spheres
Product solution
Numerical method
Graphical method
Solved problems
Objective questions
Exercise problems
7 Convection
Introduction
Mechanism of convection
The concept of velocity boundary layer
Thermal boundary layer
Laminar and turbulent flow
Forced and free convection
Methods used in convection studies
Energy equation
Integral method
Dimensional analysis
Analogical methods
Correction of experimental results
Solved problems
Objective questions
Exercise problems
8 Convective heat transfer-practical correlations
Flow over surfaces
Introduction
Flow over flat plates
Turbulent flow
Flow across cylinders
Flow across spheres
Flow over bluff bodies
Flow across bank of tubes
Solved problems
Exercise problems
9 Forced convection
Internal flow
Hydrodynamic boundary layer development
Thermal boundary layer
Laminar flow
Turbulent flow
Liquid metal flow
Flow through non-circular sections
The variation of temperature along the flow direction
Solved problems
Objective questions
Exercise problems
10 Natural convection
Introduction
Basic nature of flow under natural convection conditions
Methods of analysis
Integral method
Correlations from experimental results
A more recent set of correlations
Constant heat flux condition-vertical surfaces
Free convection from inclined surfaces
Horizontal cylinders
Other geometric
Simplified expressions for air
Free convection in enclosed spaces
Rotating cylinders, disks and spheres
Combined forced and free convection
Solved problems
Objective questions
Exercise problems
11 Phase change processes-boiling, condensation
Freezing and melting
Introduction
Boiling or evaporation
The correlations
Flow boiling
Condensation
Freezing and melting
Solved problems
Objectives questions
Exercise problems
12 Heat exchangers
Introduction
Over all heat transfer coefficient
Classification of heat exchangers
Mean temperature difference-log mean temperature differences
Regenerative type
Determination of area in other arrangements
Heat exchanger performance
Storage type heat exchangers
Compact heat exchangers
Solved problems
Objective questions
Exercise problems
13 Thermal radiations
Introduction
Black body
Intensity of radiation
Real surfaces
Radiation properties of gases-absorbing, transmitting and emitting medium
Heat exchange by radiation
Radiant heat exchange exchanges between black surfaces
Heat exchange by radiation between gray surfaces
Effect of radiation on measurement of temperature by a bare thermometer
Multisurface enclosure
Surface separated by an absorbing and transmitting medium
Solved problems
Objective questions
Exercise problems
14 Mass transfers
Introduction
Properties of mixture
Diffusion mass transfer
Fick’s law of diffusion
Equimolal counter diffusion
Stationary media with specified surface concentration
Diffusion of one component into a stationary component or
Unidirectional diffusion
Unsteady diffusion
Convective mass transfer
Similarity between heat and mass transfer
Solved problems
Exercise problems
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