CHAPTERS 101
5.2 A small furnace consists of a cylindrical, black-walled enclosure, 20 cm long and T3 = 500K
with a diameter of 10cm. The bottom surface is electrically heated to 1500 K,
while the cyl
List of topics for the 10/26/15 MEC 502 midterm
1. First law of thermodynamics: Is (1.30) as it is shown a governing equation,
i.e., does it determine the value of
shaft
W
?
2. Fouriers law of heat c
MEC 502
Conduction and Radiation Heat
Transfer
Lecture 2:
Heat Conduction Equations
Prof. Carlos E. Colosqui
Mechanical Engineering Department
Stony Brook University
Lecture 1: Review
What is Energy?
MEC 502
Conduction and Radiation Heat
Transfer
Lecture 3:
Part I: Heat Conduction Equations
Part II: Lumped Analysis
Prof. Carlos E. Colosqui
Mechanical Engineering Department
Stony Brook University
L
MEC 502
Conduction and Radiation Heat
Transfer
Lecture 1:
Introduction/Definitions/Basic Concepts
Prof. Carlos E. Colosqui
Mechanical Engineering Department
Stony Brook University
Lecture 1: Introduct
MEC 502
Conduction and Radiation Heat
Transfer
Lecture 4:
Part I: Lumped Analysis
Part II: Scaling Analysis
Prof. Carlos E. Colosqui
Mechanical Engineering Department
Stony Brook University
Announceme
Homework #7
2 = 200
2m
Problem 1
1m
The 3-surface enclosure is formed by 3 blackbodies emitting
radiation at steady temperature T1 , T2 and T3. The four
vertical walls forming surface 3 are perfectly
Class assignment #9
The thermo bottle in the illustration contains water at 1 = 80 while the air outside the
bottle is at 2 = 10. The double glass walls of the bottle are coated with a reflective
mate
MEC502: Homework #6
Problem 1(75pts): The following O.D.E describes the time evolution of temperature at
the center of a resistor (physical units are Kelvin and seconds)
= 3
2
2 + exp t
0 =0
(a) Fin
MEC 502
Conduction and Radiation Heat
Transfer
Lecture 5:
Part1: Direct integration of O.D.E. (1D Steady Conduction)
Part2: Similarity/Separation of variables (Unsteady)
Prof. Carlos E. Colosqui
Mecha
MEC 502
Conduction and Radiation Heat
Transfer
Lecture 6:
Part1: Separation of variables
Part2: Fourier Series
Prof. Carlos E. Colosqui
Mechanical Engineering Department
Stony Brook University
Announc
MEC 502
Conduction and Radiation Heat
Transfer
Lecture 7:
Part1: Laplace transform
Part2: Heat Radiation
Prof. Carlos E. Colosqui
Mechanical Engineering Department
Stony Brook University
Lecture 7 Par
MEC 502
Conduction and Radiation Heat
Transfer
Lecture 10:
Part1: Gray surface enclosures II
(non-participating media)
Part2: Radiation with participating media
Prof. Carlos E. Colosqui
Mechanical Eng
Unsteady State Heat Transfer
HT3: Experimental Studies of Thermal Diffusivities and
Heat Transfer Coefficients
Transient Heat Conduction
Many heat conduction problems encountered in engineering appli
MEC 502
Conduction and Radiation Heat
Transfer
Lecture 9:
Part1: Black surfaces review
Part2: Real bodies and gray surface radiation
(non-participating media)
Prof. Carlos E. Colosqui
Mechanical Engin
MEC 502
Conduction and Radiation Heat
Transfer
Lecture 8:
Heat Radiation Equations
Prof. Carlos E. Colosqui
Mechanical Engineering Department
Stony Brook University
Lecture 7: Review
EM radiation spec
MEC 502
Conduction and Radiation Heat
Transfer
Lecture 11:
Part1: Radiation with participating media
Part2: Heat transfer with phase change
Final review
Prof. Carlos E. Colosqui
Mechanical Engineering
Final Exam MEC502: Problem 1 (40pts)
A cubical reaction chamber containing a highly rarefied gas must operate under
conditions where the chamber walls (2) are at constant temperature T = 1000K . The
c
Problem 1
A transistor of radius =6mm forms part of an integrated circuit
operating in air (constant) temperature = 35.
Consider all
physical properties of the transistor material are constant, the th
Homework #8: four gray surface enclosure
A duct of length L = 3m has a cross section formed by 4 plates as showed in the figure
below. Assuming diffuse gray surfaces, compute the heat flow 1 , 2 , 3 ,
Homework #8: four gray surface enclosure
A duct of length L = 3m has a cross section formed by 4 plates as showed in the figure
below. Assuming diffuse gray surfaces, compute the heat flow 1 , 2 , 3 ,
List of topics for MEC 502
1. One-dimensional heat conduction through a hollow cylinder
2. Thermal resistance concept: Example 3.2
3. One-dimensional, steady-state heat conduction with heat sources
4.
MEC502:Homework #2
Problem 1(50pts):
After performing experimental measurements we find that the temperature profile in a
thin flat plate is , , = 300 200 2 , where is the distance in meters from one
MEC502:Homework #1
Problem 1(25pts):
We a scalar field , , and a vector field (, , ) = A1 + A2 + A3
The nabla operator is
=
+
+
Which of the following identities for the divergence are correct:
a = +