Syllabus
2014  2016 Catalog Data:
Modes of heat transfer; material properties; One and
two dimensional conduction; Extended surfaces;
Forced and free convection; Heat exchangers;
Radiation; Shape factors; Idael and real surfaces.
Laboratories in conduc
Experiment # 5
Heat Exchangers
ME 321 Laboratory Report
Introduction:
The objective of this experiment was to determine experimentally and
theoretically the heat transfer coefficients using two heat exchangers. To achieve the
objective, two heat exchanger
PROBLEM 8.27
KNOWN: Inlet and outlet temperatures and velocity of ﬂuid ﬂow in tube. Tube diameter and length.
FIND: Surface heat ﬂux and temperatures at x = 0.5 and 10 m.
SCHEMATIC:
F’— 1. 10." ——+1
'—_‘>7;77,0=750C
u I
um = 0. 2 m/s
u,;=25°c “——'>
1) =
PROBLEM 13.1
KNOWN: Various geometric shapes involving two areas A1 and A2.
FIND: Shape factors, F12 and F21, for each conﬁguration.
ASSUMPTIONS: Surfaces are diffuse.
ANALYSIS: The analysis is not to make use of tables or charts. The approach involves us
Experiment # 2
Composite Cylindrical Fins
ME 321 Laboratory Report
Introduction:
The objective of this experiment is to study the effects of heat transfer in
composite cylindrical fins. This objective will be achieved by taking temperature
measurements al
Linear Fluidic Systems Modeling
Monday, September 19, 2016
2:54 PM
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Experiment # 4
Transient Convection Heat Transfer
ME 321 Laboratory Report
11/6/07
Justine Maresca
595108335
Introduction:
The objective of this experiment was to use the lumped capacitance method to
determine the Biot number and the heat transfer coeffic
Experiment #1
Axial Heat Conduction in Rods
ME 321 Laboratory Report
Introduction:
The objective of this experiment is to use measured values of temperature to
determine the exact dimensions of two copper rods. To achieve this objective we have to
use the
PROBLEM 5.8
KNOWN: The temperaturetime history of a pure copper sphere in an air stream.
FIND: The heat transfer coefﬁcient between the sphere and the air stream.
SCHEMATIC:
, T(o)=66°C
73o=27 C T(69s)=55°C
——>
——>
———(>
D=IZ.7mm
ASSUMPTIONS: (1) Temper
PROBLEM 3.3
KNOWN: Temperatures and convection coefﬁcients associated with air at the inner and outer surfaces
of a rear window.
FIND: (a) Inner and outer window surface temperatures, T5, and Tm, and (b) T5,. and Tm as a function of
the outside air tempe
PROBLEM 6.2
KNOWN: Form of the velocity and temperature proﬁles for ﬂow over a surface.
FIND: Expressions for the friction and convection coefﬁcients.
SCHEMATIC:
(10017;) =D+Ey +Fy2 G'y5
——5’
15:;1 =,u [A+2By—3Cy2] —A/J
0" y yzo y=0
Hence, the f
PROBLEM 2.11
KNOWN: Onedimensional system with prescribed thermal conductivity and thickness.
FIND: Unknowns for various temperature conditions and sketch distribution.
SCHEMATIC:
H—T —L=O.25m
i; g—x,Temperafure gradienf
k=50¥K _ T; a
Hx 9:
ASSUMPTIONS:
PROBLEM 4.41
KNOWN: Boundary conditions that change from speciﬁed heat ﬂux to convection.
FIND: The ﬁnite difference equation for the node at the point where the boundary condition changes.
SCHEMATIC:
” h, T”
Cls
m  ,n I  m,n I m +1,n
l . TA {’2 Q1 qz
PROBLEM 1.4
KNOWN: Dimensions, thermal conductivity and surface temperatures of a concrete slab. Efﬁciency
of gas furnace and cost of natural gas.
FIND: Daily cost of heat loss.
SCHEMATIC:
Furnace, m = 0.90
Natural gas. I /—
C9 = $0.01/MJ Warm air Concr
PROBLEM 3.108
KNOWN: Net radiative ﬂux to absorber plate.
FIND: (a) Maximum absorber plate temperature, (b) Rate of energy collected per tube.
SCHEMATIC:
f: J grad = W/mz
"' wLine of‘ symmefry
AI alloy 1 (dT/dx =0)
75v=60°C x =A/2=0.1m
ASSUMPTIONS
PROBLEM 7.17
KNOWN: Temperature, pressure and Reynolds number for air ﬂow over a ﬂat plate of uniform
surface temperature.
FIND: (a) Rate of heat transfer from the plate, (b) Rate of heat transfer if air velocity is doubled and
pressure is increased to 10
ME321 HEAT TRANSFER
LABORATORY MANUAL
Lab Exercise 5:
Variation of Local Heat
Transfer Coefficient
Revision 1
August 2011
University of Illinois at Chicago
Nomenclature
Name
Voltage to heated cylinder
Current to heated cylinder
Power supplied to heated cy
ME321 HEAT TRANSFER
LABORATORY MANUAL
Lab Exercise 3:
Inverse Proportionality of
Temperature Gradient to Area
Revision 1
August 2011
University of Illinois at Chicago
Nomenclature
Name
Symbol
SI unit
Outside diameter
Heat transfer area
Wall thickness (dis
ME321 HEAT TRANSFER
LABORATORY MANUAL
Lab Exercise 4:
Effect of Forced Convection on
Heat Transfer
Revision 1
August 2011
University of Illinois at Chicago
Nomenclature
Name
Voltage to heated cylinder
Current to heated cylinder
Power supplied to heated cy
ME 321 Lab Report Rubric

The report can be either handwritten or typed.
First page should include: Title, author, experiment date & time.
DO NOT COPY please!
Here are the details you have to include in your report:
Abstract:
10 points
Motivation, Experi
PROBLEM 1.82
KNOWN: Hotwall oven, in lieu of infrared lamps, with temperature Tsur = 200C for heating a
coated plate to the cure temperature. See Example 1.9.
FIND: (a) The plate temperature Ts for prescribed convection conditions and coating emissivity,
PROBLEM 1.81
KNOWN: Conditions associated with surface cooling of plate glass which is initially at 600C.
Maximum allowable temperature gradient in the glass.
FIND: Lowest allowable air temperature, T.
SCHEMATIC:
ASSUMPTIONS: (1) Surface of glass exchange