UNIT 1
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Here you find the basic concepts and introduction to the subject.....Different modes of heat transfer - conditions, convection, and radiation.....Difference between the "Heat Transfer" and "Thermodynamics".
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UNIT 2
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All about conduction mode of heat transfer....Fourier's law of heat conduction....Three-dimensional general conduction equation in rectangular, cylindrical and spherical coordinates...conduction through simple cases of walls / cylinders and spheres....Theory of Fins...
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UNIT 3
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Free and forced convection, Newton's law of cooling. Overall coefficient of heat transfer. Different design criterion for heat exchangers. Log mean temperature difference for evaporator and condenser tubes, and parallel and counter flow heat exchangers, Calculation of number and length of tubes in a heat exchanger effectiveness and number of transfer units (NTU);
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UNIT 4
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Process of heat flow due to radiation, definition of emissivity, absorptivity, reflectivity and transitivity. Concept of black and grey bodies, Plank's law of monochromatic radiation. Kirchoff's law and Stefan Boltzmann's law. Interchange factor. Lambert's Cosine law and the geometric factor.
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UNIT 5
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Introduction to heat exchangers, LMTD, effectiveness, NTU method
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