# Heat Transfer

 Course Code : ULZ0112 Author : uLektz University : General for All University Regulation : 2017 Categories : Mechanical Format : ePUB3 (DRM Protected) Type : eBook

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Description :Heat Transfer of ULZ0112 covers the latest syllabus prescribed by General for All University for regulation 2017. Author: uLektz, Published by uLektz Learning Solutions Private Limited.

Note : No printed book. Only ebook. Access eBook using uLektz apps for Android, iOS and Windows Desktop PC.

##### Topics
###### UNIT – I CONDUCTION HEAT TRANSFER

1.1 INTRODUCTION: Modes and mechanisms of heat transfer – basic laws of heat transfer-General discussion about applications of heat transfer.

1.2 Conduction Heat Transfer: Fourier Rate Equation-General Heat Conduction Equation In Cartesian, Cylindrical And Spherical Coordinates.

1.3 Steady, Unsteady And Periodic Heat Transfer – Initial And Boundary Conditions.

1.4 ONE DIMENSIONAL STEADY STATE CONDUCTION HEAT TRANSFER: Homogeneous slabs, hollow cylinders and spheres

1.5 Overall Heat Transfer Coefficient-Electrical Analogy – Critical Radius Of Insulation- Variable Thermal Conductivity – Systems With Heat Sources Or Heat Generation.

###### UNIT – II ONE DIMENSIONAL TRANSIENT CONDUCTION HEAT

2.1 Extended Surface (Fins) Heat Transfer – Long Fin, Fin With Insulated Tip And Short Fin, Application To Error Measurement Of Temperature.

2.2 Transfer: Systems With Negligible Internal Resistance

2.3 Significance Of Biot And Fourier Numbers - Chart Solutions Of Transient Conduction Systems.

###### UNIT – III CONVECTIVE HEAT TRANSFER

3.1 Convective Heat Transfer: Classification Of Convective Heat Transfer – Dimensional Analysis As a Tool For Experimental Investigation

3.2 Buckingham Pi Theorem For Forced And Free Convection, Application For Developing Semi – Empirical Non- Dimensional Correlation For Convective Heat Transfer -Significance Of Non-Dimensional Numbers – Concepts Of Continuity, Momentum And Energy Equations.

###### UNIT – IV FORCED CONVECTION and FREE CONVECTION

4.1 Concepts about hydrodynamic and thermal boundary layer - Use of empirical correlations for convective heat transfer -Flat plates and cylinders

4.2 Concepts about hydrodynamic and thermal entry lengths - Division of internal flow-Use of empirical relations for horizontal pipe flow and annulus flow

4.3 Development of hydrodynamic and thermal boundary layer along a vertical plate - Use of empirical relations for vertical plates and pipes

###### UNIT – V HEAT TRANSFER WITH PHASE CHANGE

5.1 Pool boiling – regimes - Calculations on nucleate boiling, critical heat flux and film boiling

5.2 Film wise and drop wise condensation - Nusselt’s theory - Film condensation on vertical and horizontal cylinders using empirical correlations

5.3 Classification of heat exchangers - Overall heat transfer coefficient and fouling factor - Concepts of LMTD and NTU methods – Problems

###### UNIT – VI RADIATION HEAT TRANSFER

6.1 Emission characteristics and laws of black-body radiation - Irradiation - total and monochromatic quantities - Laws of Planck, Wien, Kirchoff, Lambert, Stefan and Boltzmann

6.2 Heat exchange between two black bodies - Concepts of shape factor - Emissivity – heat exchange between gray bodies - Radiation shields – electrical analogy for radiation networks