CH8591 - HEAT TRANSFER (Syllabus) 2017-regulation Anna University

CH8591 - HEAT TRANSFER (Syllabus) 2017-regulation Anna University

CH8591

HEAT TRANSFER

 LPTC

3204

OBJECTIVE:
• To enable the students to learn heat transfer by conduction, convection and radiation and heat transfer equipments like evaporator and heat exchanger

UNIT I

15

Importance of heat transfer in Chemical Engineering operations - Modes of heat transfer - Fourier’s law of heat conduction - one dimensional steady state heat conduction equation for flat plate, hollow cylinder, - Heat conduction through a series of resistances - Thermal conductivity measurement; effect of temperature on thermal conductivity; Heat transfer in extended surfaces.

UNIT II

15

Concepts of heat transfer by convection - Natural and forced convection, analogies between transfer of momentum and heat - Reynold’s analogy, Prandtl and Coulburn analogy. Dimensional analysis in heat transfer, heat transfer coefficient for flow through a pipe, flow past flat plate, flow through packed beds.


UNIT III

15

Heat transfer to fluids with phase change - heat transfer from condensing vapours, drop wise and film wise condensation, Nusselt equation for vertical and horizontal tubes, condensation of superheated vapours, Heat transfer to boiling liquids - mechanism of boiling, nucleate boiling and film boiling.

UNIT IV

15

Theory of evaporation - single effect and multiple effect evaporation - Design calculation for single and multiple effect evaporation. Radiation heat transfer - Black body radiation, Emissivity, Stefan - Boltzmann law, Plank’s law, radiation between surfaces.

UNIT V

9

Log mean temperature difference - Single pass and multipass heat exchangers; plate heat exchangers; use of correction factor charts; heat exchangers effectiveness; number of transfer unit- Chart for different configurations - Fouling factors

TOTAL : 75 PERIODS

OUTCOMES: At the end of this course,
• The students would have knowledge in various heat transfer methodology in process engineering.
• To design heat transfer equipments such as furnace, boilers, heat exchangers evaporation

TEXT BOOKS:
1. Holman, J. P., ‘Heat Transfer ’, 8th Edn., McGraw Hill, 1997.
2. Ozisik, M. N., Heat Transfer: A Basic Approach, McGraw-Hill, 1984
3. Kern, D.Q., “Process Heat Transfer “, McGraw-Hill, 1999.

REFERENCES:
1. McCabe, W.L., Smith, J.C., and Harriot, P., “Unit Operations in Chemical Engineering”, 6th Edn., McGraw-Hill, 2001.
2. Coulson, J.M. and Richardson, J.F., “Chemical Engineering “ Vol. I, 4th Edn., Asian Books Pvt. Ltd., India, 1998.

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