(BT05286) HEAT TRANSFER IN BIOPROCESSES

UNIT-I
Conductive heat transfer:
Steady state and unsteady state heat transfer by conduction. Heat transfer through
slab and cylinder. Concept of log mean radius for transfer through pipes. Extended
surface heat transfer through fins etc.
UNIT-II
Convection–Dimensional analysis, Forced convection in pipe and other geometries
UNIT-III
Natural convection - various correlation for evaluating heat transfer coefficients.
UNIT-IV
Boiling and condensations. Mechanism of boiling: Film and nucleate boiling.
UNIT-V
Heat transfer equipments:
Double pipe heat exchangers, Shell and tube heat exchangers, pinfin heat
exchangers-Overall transfer coefficient. Overview of various types of heat
exchangers and concept of LMTD.
UNIT- VI
Single and Multiple effect evaporators and problems on evaporators. Steam
economy, Steam capacity, evaporators performance with various feedings viz,
forward, backward and parallel.
UNIT-VII
Sterilization:
General principles of sterilization, Methods to avoid contamination, sterilization of
medium using HTST methods.
UNIT-VIII
Use of plate heat exchangers, effect of temperature on batch stabilization. Design
of continuous sterilizers.
TEXT BOOKS:
1. Bio-process Engineering Principles, Pauline M.Doran. Academic press (1995).
2. Unit operations of chemical engineering, Mc Cabe, W.L, Smith J.C., and Harriot,
P., Mc-Graw Hill, 5th Ed. (1993).
References:
1. Biochemical Engineering, Webb, F .C. (1964) D.Van Nostrand Co. Ltd. London,
2. Biochemical Engineering fundamentals, 2nd Bailey, J E., and Ollis, D.F. (1986)
McGraw-Hill.
3. Unit operations in Food processing, Earle, R.L. (1966)Pergamon Press Oxford.
4. Biochemical Engineering, Blanch, H.W., and Clark, D.S. (1996) Marcel Dekkar,
Inc., New york