صقات A coat is made of 5 layers of 0.1 mm thick synthetic fabric separated by 1.5 mm thick air space. 1. Calculate the rate of heat loss through the jacket. 2. Compared the heat loss through a jackets without the air space. 3. Calculate the equivalent thickness of a wool coat, which has same total heat resistances of the synthetic fabric. Given: The thermal conductivities are given to be k = 0.13 W/m-°C for synthetic fabric, k = 0.026 W/m-°C for air, and k = 0.035 W/m °C for wool fabric, area of heat transfer 1.1 m², T1 = 28 °C, To=(-5 °C), and air heat transfer coefficient 25 W/m². C.) Assumptions: المة المرتلة من الخارج مرو المنوال 1 Heat transfer is steady since there is no indication of change with time. 2 Heat transfer through the jacket is one-dimensional. 3 Thermal conductivities are constant. 4 Heat transfer coefficients account for the radiation heat transfer.

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
icon
Related questions
Question
صقات
A coat is made of 5 layers of 0.1 mm thick synthetic fabric separated by 1.5 mm thick air
space.
1. Calculate the rate of heat loss through the jacket.
2. Compared the heat loss through a jackets without the air space.
3. Calculate the equivalent thickness of a wool coat, which has same total heat resistances
of the synthetic fabric.
Given: The thermal conductivities are given to be k = 0.13 W/m-°C for synthetic fabric, k =
0.026 W/m-°C for air, and k = 0.035 W/m °C for wool fabric, area of heat transfer 1.1 m²,
T1 = 28 °C, To = (-5°C), and air heat transfer coefficient 25 W/m². C. 43)
Assumptions:
المراة المرحلة من الخارج
1 Heat transfer is steady since there is no indication of change with time.
2 Heat transfer through the jacket is one-dimensional.
3 Thermal conductivities are constant.
4 Heat transfer coefficients account for the radiation heat transfer.
12
Transcribed Image Text:صقات A coat is made of 5 layers of 0.1 mm thick synthetic fabric separated by 1.5 mm thick air space. 1. Calculate the rate of heat loss through the jacket. 2. Compared the heat loss through a jackets without the air space. 3. Calculate the equivalent thickness of a wool coat, which has same total heat resistances of the synthetic fabric. Given: The thermal conductivities are given to be k = 0.13 W/m-°C for synthetic fabric, k = 0.026 W/m-°C for air, and k = 0.035 W/m °C for wool fabric, area of heat transfer 1.1 m², T1 = 28 °C, To = (-5°C), and air heat transfer coefficient 25 W/m². C. 43) Assumptions: المراة المرحلة من الخارج 1 Heat transfer is steady since there is no indication of change with time. 2 Heat transfer through the jacket is one-dimensional. 3 Thermal conductivities are constant. 4 Heat transfer coefficients account for the radiation heat transfer. 12
Expert Solution
steps

Step by step

Solved in 5 steps with 5 images

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.
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