DEPARThIENT OF CHENIICAL ENGINEERING IIT KHARAGPUR
END SEMESTER EXAMINATION 2010, SPRING SEMESTER
Subject: Advanced Heat Transfer Subject No: CH 61014
No of Students: 82
FULL MARKS: 50 (25 For each part) Closed Boolel Closed Notes
General Instructions:
1.

Due on 29th August 2014
CHE 312A - Assignment no. 3
Q 1 Water is boiling in a 25-cm-diameter aluminum pan (k = 237 W/m C) at 95C. Heat is
transferred steadily to the boiling water in the pan through its 0.5-cm-thick flat bottom at a rate
of 800 W. If the

Boundary Layers
Hydromechanics VVR090
Boundar Layer on a Flat Plate
Boundary layer: the zone in which the velocity profile is
governed by frictional action
1
Boundary layer characterized by a Reynolds number:
R =
Vo
R < 3900
laminar flow
R > 3900
turbule

other) software, evaluate and plot the surface
heat flux as a function of wire diameter as the diameter varies
from 0.02 to 0.20 in. Discuss the results.
L
216 Inno.
a nuclear
reactor, heat is generated uniformly Due
in theon 25th August 2014
CHE 312A - A

CHE312A: Heat Transfer and its Applications
2014-2015 I Semester
Administrative Details
Date: 28-07-2014
Instructor:
Dr. Anurag Tripathi,
Department of Chemical Engineering
Office location: FB-456
Contact: phone 6591, email: anuragt@iitk.ac.in
(1) Textboo

0/15/2008
laminar boundary flow.
16:48
A
boundary layer is followed.
y The conditions that the temperature distribution must satisfy are
A
T = Tw
T
x 5 Principles of Convection 233
Principles ofCConvection
HAPTER
=0
y
H
T = T
HydrodynamicFigure
and therma

058:0160
Jianming Yang
Chapter 7
14
Fall 2012
4 Momentum Integral Equation
Exact solutions of the boundary-layer equations are possible only in simple cases. In
more complicated problems, approximate methods satisfy only an integral of the
boundary-layer

utes for the room air to reach an average temperature of 25C,
find (a) the power rating of the electric heater and (b) the temHeat Transfer Mechanism
perature rise that the air experiences each time it passes th
144C2014
Define thermal c
CHE 312A - Assign