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.
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
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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff73d55ae-679b-473b-bf8a-55978acad8fa%2F5ec5dbe5-48df-4e82-8978-ed49f2352cb8%2Fugs0x8p_processed.jpeg&w=3840&q=75)
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
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