Homework Help is Here – Start Your Trial Now!
Engineering
Mechanical Engineering
Given: An electrical device is insulated on all sides except for one face. The face is bonded to a 4mm-thich aluminum plate, which is cooled by air. heat sink → Cross-sectional area = 1m² → Electrical device dissipates heat at 10th W/m². → The resistance of the joint between the device and the aluminum plate is 05x10+ m²-k/w - → The thermal conductivity of aluminum is 238 Whirk. → Too of air t3 278 k and the convective heat transfer coefficient between aluminum and 100 W/m².K. air What is the temperature at the device surface?

Given: An electrical device is insulated on all sides except for one face. The face is bonded to a 4mm-thich aluminum plate, which is cooled by air. heat sink → Cross-sectional area = 1m² → Electrical device dissipates heat at 10th W/m². → The resistance of the joint between the device and the aluminum plate is 05x10+ m²-k/w - → The thermal conductivity of aluminum is 238 Whirk. → Too of air t3 278 k and the convective heat transfer coefficient between aluminum and 100 W/m².K. air What is the temperature at the device surface?

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
See similar textbooks
icon
Related questions
Question
Page < 7 Given: An electrical device is insulated on all sides. except for one face. The face is bonded to a 4 mm-thick aluminum plate, which is cooled by air. heat sink → Cross-Sectional area = Im → Electrical device dissipates heat at 104 W/m². → The resistance of the joint between the device and the aluminum plate is 05x10²4 mok/w. → The thermal conductivity of aluminum ts 238 Works. → Too of air 3 278 k and the convective heat transfer coefficient between aluminum and 100 W/m.k. air What is the temperature at the device surface? 0" = 10² W/m²* A=1m² Ts=? Q Search L= 4mm = aoot m k=238 W/mK q=0 Too = 278 k h = 100 W/m² Thermal Contact resistance R = 0.5x10 m² K/W. 99+
Transcribed Image Text:Page < 7 Given: An electrical device is insulated on all sides. except for one face. The face is bonded to a 4 mm-thick aluminum plate, which is cooled by air. heat sink → Cross-Sectional area = Im → Electrical device dissipates heat at 104 W/m². → The resistance of the joint between the device and the aluminum plate is 05x10²4 mok/w. → The thermal conductivity of aluminum ts 238 Works. → Too of air 3 278 k and the convective heat transfer coefficient between aluminum and 100 W/m.k. air What is the temperature at the device surface? 0" = 10² W/m²* A=1m² Ts=? Q Search L= 4mm = aoot m k=238 W/mK q=0 Too = 278 k h = 100 W/m² Thermal Contact resistance R = 0.5x10 m² K/W. 99+
Expert Solution
Step 1

Given data:

Cross-sectional area of the device: A = 1 m2

Heat flux from the device: q = 104 W/m2

Thermal resistance of the joint between the device and the aluminum plate: Rj = 0.5×10-4 m2.K/W

Thermal conductivity of the aluminum plate: k = 238 W/m.K

Thickness of the aluminum plate: L = 4 mm = 0.004 m

Convective heat transfer coefficient between the aluminum plate and air: h = 100 W/m2.K

Surrounding air temperature: Tair = 278 K

 

To find;

Device surface temperature?

trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Conduction
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Elements Of Electromagnetics
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY
SEE MORE TEXTBOOKS