ME 410
Fall 2007
Homework 3 Due: September 11, 2007
1. Consider a large plane wall of thickness L = 0.06 m. The wall surface at x = 0 is insulated while the surface at x = L is maintained at a temperature of 25C. The thermal conductivity of the wal
ME 410 Name
Spring 2008
Exam 2
Exam is open notes, open book. Problems have indicated point value. Problem 1 (30 pts) Often a watermelon is cut in half and put into the freezer to cool it quickly. If it is left in the freezer to long, a frozen laye
ME 410
Spring 2008
Homework 9 Due: March 13, 2008
1. Identify the classification of the following heat transfer (convective flow) problems. Note that there may be other modes of heat transfer present (e.g. radiation or conduction), but ignore those
ME 410
Spring 2008
Homework 9 Due: March 13, 2008
1. Identify the classification of the following heat transfer (convective flow) problems. Note that there may be other modes of heat transfer present (e.g. radiation or conduction), but ignore those
ME 410
Spring 2008
Homework 10 Due: March 27, 2008
1. Air at 4E-4 kg/s and 27C enters a triangular duct that is 20 mm on a side and 2 m long. The duct surface is maintained at 120C. Determine the air outlet temperature.
2. Determine the surface te
Chapter 15 Steady Heat Conduction Thermal Contact Resistance 3-39C The resistance that an interface offers to heat transfer per unit interface area is called thermal contact resistance, Rc . The inverse of thermal contact resistance is called the the
ME 410 Name
Spring 2008
Exam 3
Exam is open notes, open book. Problems have indicated point value. Problem 1 (50 pts) The sides of an electronics package are rectangular aluminum plates 70 cm wide and 40 cm high and act as a heat sink for the conte
ME 410
Spring 2008
Homework 10 Due: March 27, 2008
1. Air at 4E-4 kg/s and 27C enters a triangular duct that is 20 mm on a side and 2 m long. The duct surface is maintained at 120C. Determine the air outlet temperature. Ts = 120C
Determine Air out
ME 410 Name
Spring 2008
Exam 1
Exam is open notes, open book. Problems have indicated point value. Problem 1 (40 pts) Consider the base plate of a 1200 W household iron that has a thickness of L= 0.5 cm, base area of A = 300 cm2, and a thermal cond
ME 410
Spring 2008
Suggested Review Problems 5 Edition of Incropera and DeWitt
th
Topics Fundamental conduction, convection and radiation equations Heat conduction one-dimensional problems using the energy equation thermal resistance network solve
ME 410
Spring 2008
Homework 5 Due: January 31, 2008
1. 3-127 from text 2. 3.144 from text 3. 3.149 from text
ME 410
Spring 2008
ME 410
Spring 2008
ME 410
Spring 2008
ME 410
Spring 2008
Homework 2 Due: January 15, 2008
From 5th edition of Incropera and DeWitt, 1.7, 1.13, 1.18,1.30
ME 410
Spring 2008
ME 410
Spring 2008
ME 410
Spring 2008
ME 410
Spring 2008
ME 410
Spring 2008
Homework 12 Due: April 15, 2008
1. Determine the radiation heat transfer for a red-hot poker at 1200 K in the following wavelength ranges a.) the black body emissive power in the infrared region of the spectrum, 0.76 m < < 100 m
ME 410
Spring 2008
Homework 13 Due: April 22, 2008
Determine the temperature of a 200 W cylindrical heating element of diameter 2 cm by length 1 m suspended inside a parallelepiped oven of dimensions 1m by 1m by 1m. The oven walls are at 500 K and
ME 410
Spring 2008
Homework 10 Due: March 20, 2008
1. Consider a rectangular fin that is used to cool a motorcycle engine. The fin is 0.15 m long and at a temperature of 250C, while the motorcycle is moving at 80 km/h in air at 27C. The air may be
ME 410
Spring 2008
Homework 4 Due: January 24, 2008
1. 2. 3. 4. 3.5 from text 3.8a from text 3.36 from text 3.60 from text
ME 410
Spring 2008
ME 410
Spring 2008
ME 410
Spring 2008
ME 410
Spring 2008
ME 410
Spring 2008
Nusselt Number Correlation Classification System
Flow Driving Force I. II. III. Fluid Domain A. B. Geometry 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. Flat surface Sphere Cylinder Tube Bank Packed Bed Annulus Parallel Plates Parallelepiped Du
ME 410
Spring 2008
Homework 3 Due: January 22, 2008
1.
Consider a large plane wall of thickness L = 0.25 m. The wall surface at x = 0 is insulated while the surface at x = L is maintained at a temperature of 30C. The thermal conductivity of the wa
Course ME 410 - Heat Transfer T-Th 4:10-5:30 p.m. 2250 Engineering Bldg. Text- Introduction to Heat Transfer 5th Edition, Incropera and De Witt, Wiley
Dr. Laura J. Genik Cell: (503) 201-6591 Office: (517) 432-7491 ljgenik@egr.msu.edu
Office Hours Tu
ME 410
Spring 2008
Homework 13 Due: April 22, 2008
Determine the temperature of a 200 W cylindrical heating element of diameter 2 cm by length 1 m suspended inside a parallelepiped oven of dimensions 1m by 1m by 1m. The oven walls are at 500 K and
Solution Procedure for the SOV Method
1. Assume F (x ) = i f ( x i ) Where: F is the dependent variable x = [x1 x2 x3 . xn] is a vector of independent variables
For example:
2.
( x, Fo) = g ( x )h( Fo)
Substitute product into differential equati
ME 410
Radiation Enclosures for Gray, Opaque surfaces
Summary Each surface in an enclosure must have a radiation equation associated with it. There are three possibilities depending on the thermal boundary condition. Temperature Condition - Ti known
ME 410
1-D Transient Heat Conduction An initially uniform temperature object subjected to convective heat transfer One term approximation for temperature distribution, valid when Fo > 0.2 Plane Wall of width 2L, x* =
x L
:
* ( x * , Fo)=
T ( x *
ME 410
Spring 2008
Homework 7 Due: February 19, 2008
1. 5.37 from text 2. 5.53 from text 3. 5.78 from text
ME 410
Spring 2008
ME 410
Spring 2008
ME 410
Spring 2008
ME 410
Spring 2008
ME 410
Spring 2008
Homework 10 Due: March 20, 2008
1. Consider a rectangular fin that is used to cool a motorcycle engine. The fin is 0.15 m long and at a temperature of 250C, while the motorcycle is moving at 80 km/h in air at 27C. The air may be
Course alpha,
number, title
ME 410 Heat Transfer
Required or elective
Required
Course (catalog)
description
Steady state and transient heat conduction. Natural and forced convection based on boundary
layer theory. Application of Nusselt number correlation