Chemical Engineering Exam  >  Chemical Engineering Questions  >   A small surface of area emits radiation as a... Start Learning for Free
A small surface of area emits radiation as a blackbody at temperature T1 = 600 K. A fraction of energy emitted by A1 strikes another small surface of area A2 = 5 cm2 oriented as shown in the figure
A1 = 3 cm2
T1 = 600 K
Find out view factor of surface with respect to A1 ?
Option~
(A) 0.6215 x 10-4
(B) 1.234 x 10-4
(C) 4.14 x 10-4
(D) 2.071 x 10-4
Correct answer is 'B'. Can you explain this answer?
Verified Answer
A small surface of area emits radiation as a blackbody at temperature...
View factor (F12 ) is the fraction of energy leaving the surface that is received at surface But as is a black surface, energy leaving the surface is only the emitted radiation.
∴ F12 = qc1➝r2/Qc1
By Stefan-Blotzmann law
Qc1 = σA1T14
Also, using the definition of Intensity of emitted radiation,
Qc1➝r2 = Ic1A1 cos ፀ1ω2➝1
Where ω2➝1 is solid angle subtended by point surface 2 over point surface 1.
∴ ω2➝1 = A2cosፀ2/r2
For black surface
Ic1 = σT14
⇒ F12 = 1.243 x 10-4
View all questions of this test
Most Upvoted Answer
A small surface of area emits radiation as a blackbody at temperature...
View factor (F12 ) is the fraction of energy leaving the surface that is received at surface But as is a black surface, energy leaving the surface is only the emitted radiation.
∴ F12 = qc1➝r2/Qc1
By Stefan-Blotzmann law
Qc1 = σA1T14
Also, using the definition of Intensity of emitted radiation,
Qc1➝r2 = Ic1A1 cos ፀ1ω2➝1
Where ω2➝1 is solid angle subtended by point surface 2 over point surface 1.
∴ ω2➝1 = A2cosፀ2/r2
For black surface
Ic1 = σT14
⇒ F12 = 1.243 x 10-4
Free Test
Community Answer
A small surface of area emits radiation as a blackbody at temperature...
View factor (F12 ) is the fraction of energy leaving the surface that is received at surface But as is a black surface, energy leaving the surface is only the emitted radiation.
∴ F12 = qc1➝r2/Qc1
By Stefan-Blotzmann law
Qc1 = σA1T14
Also, using the definition of Intensity of emitted radiation,
Qc1➝r2 = Ic1A1 cos ፀ1ω2➝1
Where ω2➝1 is solid angle subtended by point surface 2 over point surface 1.
∴ ω2➝1 = A2cosፀ2/r2
For black surface
Ic1 = σT14
⇒ F12 = 1.243 x 10-4
Explore Courses for Chemical Engineering exam
A small surface of area emits radiation as a blackbody at temperature T1 = 600 K. A fraction of energy emitted by A1 strikes another small surface of area A2 = 5 cm2 oriented as shown in the figureA1 = 3 cm2T1 = 600 KFind out view factor of surface with respect to A1 ?Option~(A) 0.6215 x 10-4(B) 1.234 x 10-4(C) 4.14 x 10-4(D) 2.071 x 10-4Correct answer is 'B'. Can you explain this answer?
Question Description
A small surface of area emits radiation as a blackbody at temperature T1 = 600 K. A fraction of energy emitted by A1 strikes another small surface of area A2 = 5 cm2 oriented as shown in the figureA1 = 3 cm2T1 = 600 KFind out view factor of surface with respect to A1 ?Option~(A) 0.6215 x 10-4(B) 1.234 x 10-4(C) 4.14 x 10-4(D) 2.071 x 10-4Correct answer is 'B'. Can you explain this answer? for Chemical Engineering 2024 is part of Chemical Engineering preparation. The Question and answers have been prepared according to the Chemical Engineering exam syllabus. Information about A small surface of area emits radiation as a blackbody at temperature T1 = 600 K. A fraction of energy emitted by A1 strikes another small surface of area A2 = 5 cm2 oriented as shown in the figureA1 = 3 cm2T1 = 600 KFind out view factor of surface with respect to A1 ?Option~(A) 0.6215 x 10-4(B) 1.234 x 10-4(C) 4.14 x 10-4(D) 2.071 x 10-4Correct answer is 'B'. Can you explain this answer? covers all topics & solutions for Chemical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A small surface of area emits radiation as a blackbody at temperature T1 = 600 K. A fraction of energy emitted by A1 strikes another small surface of area A2 = 5 cm2 oriented as shown in the figureA1 = 3 cm2T1 = 600 KFind out view factor of surface with respect to A1 ?Option~(A) 0.6215 x 10-4(B) 1.234 x 10-4(C) 4.14 x 10-4(D) 2.071 x 10-4Correct answer is 'B'. Can you explain this answer?.
Solutions for A small surface of area emits radiation as a blackbody at temperature T1 = 600 K. A fraction of energy emitted by A1 strikes another small surface of area A2 = 5 cm2 oriented as shown in the figureA1 = 3 cm2T1 = 600 KFind out view factor of surface with respect to A1 ?Option~(A) 0.6215 x 10-4(B) 1.234 x 10-4(C) 4.14 x 10-4(D) 2.071 x 10-4Correct answer is 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Chemical Engineering. Download more important topics, notes, lectures and mock test series for Chemical Engineering Exam by signing up for free.
Here you can find the meaning of A small surface of area emits radiation as a blackbody at temperature T1 = 600 K. A fraction of energy emitted by A1 strikes another small surface of area A2 = 5 cm2 oriented as shown in the figureA1 = 3 cm2T1 = 600 KFind out view factor of surface with respect to A1 ?Option~(A) 0.6215 x 10-4(B) 1.234 x 10-4(C) 4.14 x 10-4(D) 2.071 x 10-4Correct answer is 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A small surface of area emits radiation as a blackbody at temperature T1 = 600 K. A fraction of energy emitted by A1 strikes another small surface of area A2 = 5 cm2 oriented as shown in the figureA1 = 3 cm2T1 = 600 KFind out view factor of surface with respect to A1 ?Option~(A) 0.6215 x 10-4(B) 1.234 x 10-4(C) 4.14 x 10-4(D) 2.071 x 10-4Correct answer is 'B'. Can you explain this answer?, a detailed solution for A small surface of area emits radiation as a blackbody at temperature T1 = 600 K. A fraction of energy emitted by A1 strikes another small surface of area A2 = 5 cm2 oriented as shown in the figureA1 = 3 cm2T1 = 600 KFind out view factor of surface with respect to A1 ?Option~(A) 0.6215 x 10-4(B) 1.234 x 10-4(C) 4.14 x 10-4(D) 2.071 x 10-4Correct answer is 'B'. Can you explain this answer? has been provided alongside types of A small surface of area emits radiation as a blackbody at temperature T1 = 600 K. A fraction of energy emitted by A1 strikes another small surface of area A2 = 5 cm2 oriented as shown in the figureA1 = 3 cm2T1 = 600 KFind out view factor of surface with respect to A1 ?Option~(A) 0.6215 x 10-4(B) 1.234 x 10-4(C) 4.14 x 10-4(D) 2.071 x 10-4Correct answer is 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A small surface of area emits radiation as a blackbody at temperature T1 = 600 K. A fraction of energy emitted by A1 strikes another small surface of area A2 = 5 cm2 oriented as shown in the figureA1 = 3 cm2T1 = 600 KFind out view factor of surface with respect to A1 ?Option~(A) 0.6215 x 10-4(B) 1.234 x 10-4(C) 4.14 x 10-4(D) 2.071 x 10-4Correct answer is 'B'. Can you explain this answer? tests, examples and also practice Chemical Engineering tests.
Explore Courses for Chemical Engineering exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev