Homework Help is Here – Start Your Trial Now!
Engineering
Mechanical Engineering
13-56 Consider two rectangular surfaces perpendicular to each other with a common edge which is 1.6 m long. The horizontal surface is 0.8 m wide, and the vertical surface is 1.2 m high. The horizontal surface has an emissivity of 0.75 and is maintained at 450 K. The vertical surface is black and is maintained at 700 K. The back sides of the surfaces are insulated. The surrounding surfaces are at 290 K and can be considered to have an emissivity of 0.85. Determine the net rate of radiation heat transfer between the two surfaces and between the horizontal surface and the surroundings. FIGURE P13–56 Tz= 700 K e2 = 1 W = 1.6 m T3 = 290 K E3= 0.85 Lz= 1.2 m A2 L1 = 0.8 m A1 Tj = 450 K €1 = 0.75

13-56 Consider two rectangular surfaces perpendicular to each other with a common edge which is 1.6 m long. The horizontal surface is 0.8 m wide, and the vertical surface is 1.2 m high. The horizontal surface has an emissivity of 0.75 and is maintained at 450 K. The vertical surface is black and is maintained at 700 K. The back sides of the surfaces are insulated. The surrounding surfaces are at 290 K and can be considered to have an emissivity of 0.85. Determine the net rate of radiation heat transfer between the two surfaces and between the horizontal surface and the surroundings. FIGURE P13–56 Tz= 700 K e2 = 1 W = 1.6 m T3 = 290 K E3= 0.85 Lz= 1.2 m A2 L1 = 0.8 m A1 Tj = 450 K €1 = 0.75

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter11: Heat Transfer By Radiation
Section: Chapter Questions
Problem 11.65P
See similar textbooks
icon
Related questions
Question
13-56 Consider two rectangular surfaces perpendicular to each other with a common edge which is 1.6 m long. The horizontal surface is 0.8 m wide, and the vertical surface is 1.2 m high. The horizontal surface has an emissivity of 0.75 and is maintained at 450 K. The vertical surface is black and is maintained at 700 K. The back sides of the surfaces are insulated. The surrounding surfaces are at 290 K and can be considered to have an emissivity of 0.85. Determine the net rate of radiation heat transfer between the two surfaces and between the horizontal surface and the surroundings. FIGURE P13–56 Tz= 700 K e2 = 1 W = 1.6 m T3 = 290 K E3= 0.85 Lz= 1.2 m A2 L1 = 0.8 m A1 Tj = 450 K €1 = 0.75
Transcribed Image Text:13-56 Consider two rectangular surfaces perpendicular to each other with a common edge which is 1.6 m long. The horizontal surface is 0.8 m wide, and the vertical surface is 1.2 m high. The horizontal surface has an emissivity of 0.75 and is maintained at 450 K. The vertical surface is black and is maintained at 700 K. The back sides of the surfaces are insulated. The surrounding surfaces are at 290 K and can be considered to have an emissivity of 0.85. Determine the net rate of radiation heat transfer between the two surfaces and between the horizontal surface and the surroundings. FIGURE P13–56 Tz= 700 K e2 = 1 W = 1.6 m T3 = 290 K E3= 0.85 Lz= 1.2 m A2 L1 = 0.8 m A1 Tj = 450 K €1 = 0.75
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 10 steps with 10 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer