1. What does the view factor represent? When is the view factor from a surface to itself not zero? 2. Consider two coaxial parallel circular disks of equal diameter D= 1 m spaced apart by 1 m, and two aligned parallel square plates (1 mx 1 m) are also spaced apart by 1 m. Determine the view factors Fu between the circular disks and the square plates. Which of the two geometries has the higher view factor value? D D 1 m 1 m 1m A₂ A₁ Im

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
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1. What does the view factor represent? When is the view factor from a surface to itself not zero?
2. Consider two coaxial parallel circular disks of equal diameter D = 1 m spaced apart by 1 m, and two aligned
parallel square plates (1 mx 1 m) are also spaced apart by 1 m. Determine the view factors F₁2 between the
circular disks and the square plates. Which of the two geometries has the higher view factor value?
D
D
1 m
1 m
kd
CS Scanned with CamScanner
1 m,
D-
A2
3. Consider an enclosure consisting of 13 surfaces. How many view factors does this geometry involve? How
many of these view factors can be determined by the application of the reciprocity and the summation rules?
4. Consider a conical enclosure of height h and base diameter D. Determine the view factor from the conical side
surface to a hole of diameter d located at the center of the base.
Im
h
Transcribed Image Text:1. What does the view factor represent? When is the view factor from a surface to itself not zero? 2. Consider two coaxial parallel circular disks of equal diameter D = 1 m spaced apart by 1 m, and two aligned parallel square plates (1 mx 1 m) are also spaced apart by 1 m. Determine the view factors F₁2 between the circular disks and the square plates. Which of the two geometries has the higher view factor value? D D 1 m 1 m kd CS Scanned with CamScanner 1 m, D- A2 3. Consider an enclosure consisting of 13 surfaces. How many view factors does this geometry involve? How many of these view factors can be determined by the application of the reciprocity and the summation rules? 4. Consider a conical enclosure of height h and base diameter D. Determine the view factor from the conical side surface to a hole of diameter d located at the center of the base. Im h
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