CSVTU B.E. VII Semester Mechanical Engineering Heat & Mass Transfer Syllabus

CHHATTISGARH SWAMI VIVEKANAND TECHNICAL UNIVERSITY, BHILAI (C G)

Semester: B.E. VII Sem. Branch: Mechanical Engg.

Subject: Heat & Mass Transfer

Total Theory Periods: 50 Total Tutorial Period: 12

Total Marks in End Semester Exam: 80

Minimum number of class tests to be conducted: 2

N.B. : – H.M.T. Data Book (PSG), Fifth Edition “Wiley Eastern Limited” Permitted in the Examination.

UNIT – I

Introduction

Various modes of heat transfer, Fourier’s, Newton’s and Stefan Boltzman’s Law, Combined modes of heat transfer,

thermal transfer, thermal diffusivity, overall heat transfer coefficient.

Conduction

The thermal conductivity of solids, liquids and gases, factors influencing conductivity measurement. The general

differential equation of conduction. One dimensional steady state conduction, linear heat flow through a plane and

composite wall, tube and sphere, critical thickness of insulation, Effect of variable thermal conductivity, Conduction

with heat generation in flat and cylinders.

UNIT – II

Fins

Conduction convection system, extended surfaces rectangular, triangular, circumferential and pin fins. General

conduction analysis, fins of uniform and non-uniform cross sectional area. Heat dissipated by a fin. Effectiveness

and efficiency of fins. Approximate solution. Design of fins for maximum heat transfer. Solution for different

boundary condition. Use of fin analysis for measuring temperature error of Thermometer.

Transient/Unsteady State Heat Conduction

System with negligible internal resistance, Lumped capacity method and its Validity. Unsteady state conduction

through finite and semi- infinite slab without surface resistance, convection boundary conditions. Solution through

Heisler`s chart.

UNIT – III

Forced Convection

Physical Mechanism of Forced Convection, Dimensional analysis for forced convection, velocity and Thermal

Boundary layer, Flow over plates, Flow across cylinders and spheres, Flow in tubes, Reynold’s analogy.

Natural Convection

Physical Mechanism of Natural Convection, Dimensional analysis of natural convection; empirical relationship for

natural convection.

UNIT IV

Two Phase Heat Transfer

Boiling heat transfer, Pool boiling, boiling regimes and boiling curve, next transfer correlations in pool boiling.

Condensation heat transfer, Film condensation, derivation for the average heat transfer coefficient ‘h’ for the case of

laminar film condensation over vertical plate, Heat transfer correlation for inclined plates, vertical tubes, Horizontal

bank tubes.

Heat Exchangers

Different types of heat exchangers; Determination of heat exchanger performance, Heat exchanger transfer units,

Analysis restricted to parallel and counter flow heat exchanger (LMTD and NTU method)

UNIT V

Thermal Radiation

Introduction, absorption and reflection of radiant energy, Emission, Radiosity and irradiation, Black and non black

bodies, Kirchoff’s law; intensity of radiation, radiation exchange between black surface, geometric configuration

factor. Grey body relation exchange between surface of unit configuration factors. Electrical analogy to simple

problems. Non-luminous gas radiation. Errors in temperature measurement due to radiation.

Introduction to Mass Transfer

Mass and mole concentrations, molecular diffusion, eddy diffusion, Molecular diffusion from an evaporating fluid

surface, Introduction to mass transfer in laminar and turbulent convection Combined heat and mass transfer, the

wet and dry bulb thermometer.

TEXT BOOKS

1. Heat Transfer – S.P. Sukhatme – TMH

2. Heat & Mass Transfer – D.S. Kumar – S.K. Kataria & Sons

3. Heat transfer- C P Arora, TMH

REFERENCE BOOKS

1. Heat & Mass Transfer – K. Kannan – Anuradha Agencies

2. Heat Transfer – J.P. Holman – TMH

3. Heat Transfer – A Practical Approach – Yunus A. Cengel – McG

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