Example: The view factors between the rectangular surfaces shown in the figure are to be determined. Example: The view factors between the rectangular surfaces shown in thefigure are to be determined.W = 2 mL2 = 1 mA.(2)(1)Аз(3)L3 = 1 m

Calculated view factor of rectangular surfaces.

Answered: Example: The view factors between the…

Example: The view factors between the rectangular surfaces shown in the figure are to be determined. W = 2 m L2 = 1 m A2. (2) (1) Аз (3) L3 = 1 m

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 11.34P

See similar textbooks

Related questions

Q: Two infinitely long parallel plates of width w arelocated at a distance of w apart.Determine the…

A: This problem can be solved by applying the method of cross strings to solve the view factor. This…

Q: Calculate the view factor FBA for the following shape. The radii for the hollow circle, circle A…

A: Given :- Circle A radii : Outer Radius (R) = 8 m Inner Radius (r) = 5 m Circle B radius : Radius…

Q: 2. Calculate the view factor FBA for the following shape. The radii for the hollow circle, circle A…

A: Given that, Radius of hollow circle A, rA=8 m, and RA=10 m,Radius of circle B, RB=5 m,Vertical…

Q: Two infinitely long parallel cylinders of diameter D are located a distance s apart from each other.…

A: Writing the frmula for view factor of two infinmtely long surface of crossed-string method as…

Q: 1. A circular furnace has 2 end black surfaces and surface 1 is kept at 500 K and surface 2 is kept…

Q: Find the view factors of the designated sides 1&3; and 1,2&3 to their surroundings in terms of a&b:…

Q: Two large parallel surfaces (surface 1 and surface 2) kept at constant surface temperature of T= 300…

Q: Determine the view factors F32 and F23 between the rectangular surfaces shown in the figure.

A: X=1 mZ1=0.2 mZ2=0.2 mY=0.4 m

Q: 1) Determine the view factors F13 and F23 between the rectangular surfaces shown in Figure below:…

A: Hii, thanks for the question, We are authorized to answer one question at a time, since you have not…

Q: Calculate the radiation shape factor between a hemisphere of radius r=75cm shown in the figure and…

Q: Consider an enclosure consisting of 12 surfaces. How many view factors does this geometry involve?…

A: Given Data N-Number of surfaceN=12Ist dtermining the number of view factors by Directly Methodafter…

Q: A spherical particle of diameter Di = 10 mm is suspended by a thin wire within a cylindrical tube of…

Q: For the long (into the screen) triangular enclosure shown below, find the view factor from surface 1…

A: From summation rule of shape factors: F33+F32+F31=1 .....(1) Since no energy radiated by surface…

Q: The spectral absorptivity of a diffuse surface is provided in the figure. If the surface is at 300 K…

A: To find : The total emissivity . Given : The temperature of surface is T=300 K Concept used : The…

Q: A spherical particle of diameter D1 = 10 mm is suspended by a thin wire within a cylindrical tube of…

Q: Determine the view factors from the base of the pyramid shown in Figure 12-14 to each of its four…

Q: 13–19 Determine the view factors F13 and F3 between the rectangular surfaces shown in Fig. P13–19.

A: It is required to determine view factors F13 and F23 between the rectangular surfaces of the given…

Q: determine the view factor, and the net heat transfer by radiation between two gray surfaces, A (εA=…

Q: A small disc-shaped earth satellite, 1m in diameter, circles the earth (radius 6250 km) at a…

A: Given details: d=1 mε1=ε2=0.3Tsatellite=-18°CT2=27 °Cσ=5.67×10-8 w/m2k4 here σ=stefan boltzman…

Q: Two plane disks each 125 cm in diameter are parallel and directly opposite each other. They are…

A: given; diameter of disc (d)=125cm=1.25mseperate distance (l)=50cm=0.5mtemperature of disc A…

Q: A flat, circular silicon wafer is uniformly heated by a flat, circular surface located above it. The…

A: Given Data, Let hemispherical surface is treated as surface 1, surrounding as surface 2 and the…

Q: Consider a cylindrical enclosure with A1, A2, and A3 representing the internal base, top, and side…

A: Given: The diagram of the cylindrical enclosure with having area of surfaces 1, 2, and 3 is given…

Q: A spherical particle of diameter DI = 10 mm is suspended by a thin wire within a cylindrical tube of…

A: Given: Length of the tube→L=0.5 m=500 mm Inner Diameter of the tube→D2=30 mm=0.03 m Diameter of the…

Q: Consider a conical enclosure of height h and base diameter D. Determine the view factor from the…

Q: Consider two infinitely long thin concentric tubes of circular cross section as shown in figure. If…

Q: Two adjacent rectangles are perpendicular to each other., The first rectangle is 1.52 x 2.44 m and…

Q: Consider a room with dimensions as in the sketch. Assuming all emissivities of surfaces are equal to…

A: Please refer next page for the answer.

Q: the view factor F22 is?

A: Given; Consider two infinetely long tin concentric tubes of circular coss section as given in…

Q: 3.Determine the total number of view factors that need to be evaluated directly for a 4-surface…

A: Given data: n=4 Need to determine the total number of view factors that need to evaluated directly.

Q: Determine the view factors from the very long grooves to the surroundings without using any view…

A: The schematic view of the geometry

Q: A spherical particle of diameter Dị = 10 mm is suspended by a thin wire within a cylindrical tube of…

A: given; diameter of sphere(D1)=10mm =0.01mcylinder tube (D2)=30mm…

Q: A horizontal plate is experiencing uniform irradiation on the both upper and lower surfaces. The…

A: Given data Temperature of air Ta= 290K Heat transfer coefficient h = 3030 W/m2K Radiosity of the…

Q: Consider a cubic body 20 cm × 20 cm × 20 cm at 750 K suspended in air. Assuming that the body…

Q: 19. A right circular cylinder has a height of 1 m and diameter of 75 cm. Find the view factor for…

Q: Consider an enclosure consisting of five surfaces. How many view factors does this geometry involve?…

A: Understand that the geometry has five surfaces. Write the formula for number of view factors for a…

Q: (a) Two surfaces, A and B has a temperature of 4500 K and different spectral emissivity as shown in…

A: Given: The temperature, T = 4500 K The Stefan Stefan Boltzmann’s constant, σ = 5.67x10^-8 W/m^2.K

Q: A right circular cylinder has a height of 1 m and diameter of 75 cm. Find the view factor for the…

Q: A spherical particle of diameter D = 10 mm is suspended by a thin wire within a cylindrical tube of…

Q: determine the view factor, and the net heat transfer by radiation between two gray surfaces, A (εA=…

A: Answer: (d) Qnet = 5817.6 Watt ..... (for concentric cylindrical tube). (e) Qnet = 32616 Watt…

Q: Determine the view factors from the base of a cube to each of the other five surfaces.

A: The give cube can be shown as – Let us consider the surface 1 and 3 of the cube which is shown…

Q: Consider two infinitely long thin concentric tubes of circular cross section as shown in figure. If…

Q: C, emissivity1 = 0.85 and T2 = 35 deg C, emissivity2 = 0.5, respectively. Assu n are diffuse-gray…

Concept explainers

Radiation

Radiation can be described as the energy in the form of a particular matter or electromagnetic waves traveling in the air and can be in the form of light, sound, and heat. Radiation can be detected through special instruments like X-rays. The radiation from a cooler object is less intense as compared to the radiation from hot objects.

Question

Example: The view factors between the rectangular surfaces shown in the figure are to be determined.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

11.31 A large slab of steel 0.1 m thick contains a 0.1 -m-di- ameter circular hole whose axis is normal to the surface. Considering the sides of the hole to be black, specify the rate of radiative heat loss from the hole. The plate is at 811 K, and the surroundings are at 300 K.
Two large parallel plates with surface conditions approximating those of a blackbody are maintained at 816C and 260C, respectively. Determine the rate of heat transfer by radiation between the plates in W/m2 and the radiative heat transfer coefficient in W/m2K.
Determine the total average hemispherical emissivity and the emissive power of a surface that has a spectral hemispherical emissivity of 0.8 at wavelengths less than 1.5m, 0.6 at wavelengths from 1.5to2.5m, and 0.4 at wavelengths longer than 2.5m. The surface temperature is 1111 K.
1.28 The sun has a radius of and approximates a blackbody with a surface temperature of about 5800 K. Calculate the total rate of radiation from the sun and the emitted radiation flux per square meter of surface area.
11.68 Two infinitely large, black, plane surfaces are 0.3 m apart, and the space between them is filled by an isothermal gas mixture at 811 K and atmospheric pressure. The gas mixture consists of by volume. If one of the surfaces is maintained at 278 K and the other at 1390 K, calculate (a) the effective emissivity of the gas at its temperature, (b) the effective absorptivity of the gas to radiation from the 1390 K surface, (c) the effective absorptivity of the gas to radiation from the 278 K surface, and (d) the net rate of heat transfer to the gas per square meter of surface area.
11.41 Determine the steady-state temperatures of two radiation shields placed in the evacuated space between two infinite planes at temperatures of 555 K and 278 K. The emissivity of all surfaces is 0.8.