Homework Help is Here – Start Your Trial Now!
Engineering
Chemical Engineering
3. How many watts will be radiated from a spherical black body 15 cm in diameter at a temperature of 800°C?

3. How many watts will be radiated from a spherical black body 15 cm in diameter at a temperature of 800°C?

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
See similar textbooks
icon
Related questions
Question

Task 2. Answer only 3

TASK# 2. Solve problems involving heat transfer by radiation processes. Problem Solving Instructions: Analyze and solve the following problems. Enclose your final answer in a box. 1. The inner wall of a thermos bottle is at -10°C while the outer at 99°F. The space between the walls is evacuated and the walls are silvered so the emissivity is reduced to 0.10. If each wall has an area of 705 cm², how much energy is transformed by radiation between walls each second? 2. A steam pipe having a surface temperature of 250°C passes through a room where the temperature is 27°C. The outside diameter of the pipe is 100 mm and emissivity factor is 0.8. Calculate the radiated heat loss for 3 m pipe length. 3. How many watts will be radiated from a spherical black body 15 cm in diameter at a temperature of 800°C? Calculate the radiation in watts per square centimeter from a block of copper at 302°F and at 1732°F. The oxidized copper surface radiates at 58% the rate of a black body. 4. 5. A small sphere has a radius of 3.50 cm and is maintained at a temperature of 325°C. Assuming it to be a black body surrounded by empty space, how much energy does it radiate each second?
Transcribed Image Text:TASK# 2. Solve problems involving heat transfer by radiation processes. Problem Solving Instructions: Analyze and solve the following problems. Enclose your final answer in a box. 1. The inner wall of a thermos bottle is at -10°C while the outer at 99°F. The space between the walls is evacuated and the walls are silvered so the emissivity is reduced to 0.10. If each wall has an area of 705 cm², how much energy is transformed by radiation between walls each second? 2. A steam pipe having a surface temperature of 250°C passes through a room where the temperature is 27°C. The outside diameter of the pipe is 100 mm and emissivity factor is 0.8. Calculate the radiated heat loss for 3 m pipe length. 3. How many watts will be radiated from a spherical black body 15 cm in diameter at a temperature of 800°C? Calculate the radiation in watts per square centimeter from a block of copper at 302°F and at 1732°F. The oxidized copper surface radiates at 58% the rate of a black body. 4. 5. A small sphere has a radius of 3.50 cm and is maintained at a temperature of 325°C. Assuming it to be a black body surrounded by empty space, how much energy does it radiate each second?
Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Introduction to Chemical Engineering Thermodynami…
Introduction to Chemical Engineering Thermodynami…
Chemical Engineering
ISBN:
9781259696527
Author:
J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:
McGraw-Hill Education
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemical Engineering
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
Elements of Chemical Reaction Engineering (5th Ed…
Elements of Chemical Reaction Engineering (5th Ed…
Chemical Engineering
ISBN:
9780133887518
Author:
H. Scott Fogler
Publisher:
Prentice Hall
Process Dynamics and Control, 4e
Process Dynamics and Control, 4e
Chemical Engineering
ISBN:
9781119285915
Author:
Seborg
Publisher:
WILEY
Industrial Plastics: Theory and Applications
Industrial Plastics: Theory and Applications
Chemical Engineering
ISBN:
9781285061238
Author:
Lokensgard, Erik
Publisher:
Delmar Cengage Learning
Unit Operations of Chemical Engineering
Unit Operations of Chemical Engineering
Chemical Engineering
ISBN:
9780072848236
Author:
Warren McCabe, Julian C. Smith, Peter Harriott
Publisher:
McGraw-Hill Companies, The
SEE MORE TEXTBOOKS