GTU Process Heat Transfer Syllabus

GTU Process Heat Transfer Syllabus

 GUJARAT TECHNOLOGICAL UNIVERSITY
B.E Semester: 4
Chemical Engineering
Subject Code 140503
Subject Name Process Heat Transfer
Sr.No Course contents
1 Introduction to three modes of heat transfer: Conduction convection &
radiation. General laws of heat transfer.
2 Conduction: Fourier’s law. Conductivity, its variation with temp. & Pressure
and its relationship with electrical conductivity. Heat transfer through
composite walls and cylinders. Unsteady state heat transfer through some
important shapes. Insulating materials general properties & application.
3 Natural convection: Natural convection from vertical plates & horizontal
cylinders. Forced convection: In laminar flow – Heat transfer in plate & in
tubes. In turbulent flow – Empirical equations for individual coefficients:
inside tubes, outside tubes, outside bundle of tubes, flow past spheres.
Significance of Prandtl No., Nusselt No., Grashof No., Graetz No. & Peclet
No. Correction for tube length. Correction for heating and cooling and other
corrections. Various analogies between heat & momentum transfer.
4 Radiation: Radiation laws like Stefan Boltzman’s law, Kirchoff’s law, Wien’s
law, Plank’s law etc. Black body, Grey body. Transmittivity, Absorptivity,
Reflectivity, Emissivity of black bodies and gray bodies. Application of
thermal radiation: Radiation Transfer between surfaces. Radiation
through semi transparent materials.
5 Heat transfer with phase change: Boiling of liquids, Pool boiling curve,
different types of pool boiling, condensation of vapor. Film wise & drop wise
condensation. Weighted LMTD & Overall Heat transfer Coefficient for
desuperheating & sub cooling.
6 Evaporation: Performance of tubular evaporator. Individual & overall
coefficients. Capacity & economy of evaporators. Boiling point elevation,
Duhring’s rule, Effect of liquid head & friction on pressure drop. Types of
evaporators. -Multiple effect evaporators. -Vapor recompression-Thermal
recompression & mechanical recompression.
7 Heat Exchange equipments: -Double pipe heat exchangers. Individual and
overall heat transfer coefficient LMTD. Variable overall Heat transfer.
Coefficient fouling factors. Shell & tube heat exchangers. LMTD correction
factors. General constructions.-Extended surface equipment. Fin
efficiency. Fin effectiveness
Reference Books:
1. “Heat Transmission” : W. H. McAdams, McGraw Hill, 3rd Edition.
2. “Process Heat Transfer” : D. Q. Kern, McGraw Hill.
3. McCabe W L, Smith J C, Harriott P,”Unit Operations of Chemical Engineering”,
7th Ed. McGraw Hill, 2005
4. Fundamentals of Engineering heat and mass transfer by R.C. Sachdeva

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