Course Details
Subject {L-T-P / C} : FP3271 : Food Engineering Laboratory { 0-0-3 / 2}
Subject Nature : Practical
Coordinator : Prof. Parag Prakash Sutar
Syllabus
Introductory concepts, modes of heat transfer, thermal conductivity of materials, measurement.
General differential equation of conduction. One dimensional steady state conduction through
plane and composite walls, tubes and spheres with and without heat generation. Electrical
analogy. Insula-tion materials, critical thickness of insulation. Fins, Free and forced convection.
Newton’s law of cool-ing, heat transfer coefficient in convection. Dimensional analysis of free
and forced convection. Useful non dimensional numbers and empirical relationships for free and
forced convection. Equation of lam-inar boundary layer on flat plate and in a tube. Laminar
forced convection on a flat plate and in a tube. Combined free and forced convection.
Introduction. Absorptivity, reflectivity and transmissivity of ra-diation. Black body and
monochromatic radiation, Planck’s law, Stefan-Boltzman law, Kirchoff’s law, grey bodies and
emissive power, solid angle, intensity of radiation. Radiation exchange between black surfaces,
geometric configuration factor. Heat transfer analysis involving conduction, convection and
radiation by networks. Types of heat exchangers, fouling factor, log mean temperature
difference, heat exchanger performance, transfer units. Heat exchanger analysis restricted to
parallel and counter flow heat exchangers. Steady state molecular diffusion in fluids at rest and
in laminar flow, Flick’s law, mass transfer coefficients. Reynold’s analogy.
Course Objectives
- To educate students about the basic use, applications and equipment hands on so as to facilitate learning.
Course Outcomes
To learn the basic concept of heat and mass transfer in food processing
Essential Reading
- Datta, Biological and Bioenvironmental Heat and Mass Transfer, NIPA India
- Nag, Heat And Mass Transfer, Springer
Supplementary Reading
- J.G.Brennan, Food Processing Handbook, WILEY-VCH Verlag GmbH &
- McCabe and Smith, Unit operations of chemical engineering, McGraw-Hill