CH3491 Syllabus - Heat Transfer - 2021 Regulation Anna University

CH3491 Syllabus - Heat Transfer - 2021 Regulation Anna University

CH3491	HEAT TRANSFER	LPTC

2103

COURSE OBJECTIVES: The course is aimed to

• Teach the fundamental concepts of heat transfer viz., conduction, convection, radiation, boiling and condensation and its application to the students

UNIT I		9

Importance of heat transfer in Chemical Engineering operations - Modes of heat transfer ; One dimensional steady state heat conduction through plane and composite walls, hollow cylinder and spheres - Thermal conductivity measurement-effect of temperature on thermal conductivity; Heat transfer in extended surfaces; Transient heat conduction

UNIT II		11

Concepts of heat transfer by convection - Natural and forced convection, Hydrodynamic and thermal Boundary layers; analogies between transfer of momentum and heat - Reynold’s analogy, Prandtl and Colburn analogy. Dimensional analysis in heat transfer, heat transfer coefficient for flow through a pipe, flow past flat plate.

UNIT III		9

Heat Exchangers – classification and design, overall and individual film coefficients, mean temperature difference, LMTD correction factor for multiple pass exchanger, NTU and efficiency of Heat exchangers

UNIT IV		8

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 V		8

Evaporation- single and multiple effect operation, material and Energy balance in evaporators, boiling point elevation, Duhring’s rule. Radiation heat transfer - Black body radiation, Emissivity, Stefan - Boltzman law, Plank’s law, radiation between surfaces.

TOTAL: 45 PERIODS

COURSE OUTCOMES: On the completion of the course students are expected to

CO1: To familiarize the students with the fundamental concepts of Heat Transfer. Provide the student with knowledge about heat transfer by conduction in solids for steady state.
CO2: Students will understand convective heat transfer and use of heat transfer coefficients for laminar and turbulent flows.
CO3: The course gives the student insight about boundary layer flow, laminar and turbulent flows.
CO4: Students will be able to calculate and use overall heat transfer coefficients in designing heat exchangers.
CO5: The course provides the student with knowledge about heat transfer with phase change (Boiling and condensation) and evaporation.
CO6: Students will understand radiative heat transfer including blackbody radiation and Kirchoff’slaw, and will be able to solve radiative problems apply knowledge of heat transfer to solve thermal engineering problems

TEXT BOOKS:

1. Holman, J. P., ‘Heat Transfer ’, 10th Edn., McGraw Hill,2010. 62
2. Ozisik, M. N., Heat Transfer: A Basic Approach, McGraw-Hill, 1984
3. Kern, D.Q., “Process Heat Transfer “, McGraw-Hill, 1999.
4. B.K. Dutta, Heat transfer principles and applications, PHI Learning PVT Ltd, 2016

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