Shape Factor 21 given Area of Both Surface and Shape Factor 12 Solution

STEP 0: Pre-Calculation Summary
Formula Used
Radiation Shape Factor 21 = Radiation Shape Factor 12*(Surface Area of Body 1/Surface Area of Body 2)
F21 = F12*(A1/A2)
This formula uses 4 Variables
Variables Used
Radiation Shape Factor 21 - Radiation Shape Factor 21 is the fraction of radiation energy radiated by one surface which is incident on another surface when both surfaces are placed in a non-absorbing medium.
Radiation Shape Factor 12 - Radiation Shape Factor 12 is the fraction of radiation energy radiated by one surface which is incident on another surface when both surfaces are placed in a non-absorbing medium.
Surface Area of Body 1 - (Measured in Square Meter) - The Surface Area of Body 1 is the area of body 1 through which the radiation takes place.
Surface Area of Body 2 - (Measured in Square Meter) - The Surface Area of Body 2 is the area of body 2 upon which the radiation takes place.
STEP 1: Convert Input(s) to Base Unit
Radiation Shape Factor 12: 0.59 --> No Conversion Required
Surface Area of Body 1: 34.74 Square Meter --> 34.74 Square Meter No Conversion Required
Surface Area of Body 2: 50 Square Meter --> 50 Square Meter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
F21 = F12*(A1/A2) --> 0.59*(34.74/50)
Evaluating ... ...
F21 = 0.409932
STEP 3: Convert Result to Output's Unit
0.409932 --> No Conversion Required
FINAL ANSWER
0.409932 <-- Radiation Shape Factor 21
(Calculation completed in 00.020 seconds)

Credits

Created by Ayush gupta
University School of Chemical Technology-USCT (GGSIPU), New Delhi
Ayush gupta has created this Calculator and 300+ more calculators!
Verified by Prerana Bakli
University of Hawaiʻi at Mānoa (UH Manoa), Hawaii, USA
Prerana Bakli has verified this Calculator and 1600+ more calculators!

23 Radiation Formulas Calculators

Radiosity given Emissive Power and Irradiation
Go Radiosity = (Emissivity*Emissive Power of Blackbody)+(Reflectivity*Irradiation)
Area of Surface 1 given Area 2 and Radiation Shape Factor for Both Surfaces
Go Surface Area of Body 1 = Surface Area of Body 2*(Radiation Shape Factor 21/Radiation Shape Factor 12)
Area of Surface 2 given Area 1 and Radiation Shape Factor for Both Surfaces
Go Surface Area of Body 2 = Surface Area of Body 1*(Radiation Shape Factor 12/Radiation Shape Factor 21)
Shape Factor 12 given Area of Both Surface and Shape Factor 21
Go Radiation Shape Factor 12 = (Surface Area of Body 2/Surface Area of Body 1)*Radiation Shape Factor 21
Shape Factor 21 given Area of Both Surface and Shape Factor 12
Go Radiation Shape Factor 21 = Radiation Shape Factor 12*(Surface Area of Body 1/Surface Area of Body 2)
Temperature of Radiation Shield Placed between Two Parallel Infinite Planes with Equal Emissivities
Go Temperature of Radiation Shield = (0.5*((Temperature of Plane 1^4)+(Temperature of Plane 2^4)))^(1/4)
Emissive Power of Blackbody
Go Emissive Power of Blackbody = [Stefan-BoltZ]*(Temperature of Blackbody^4)
Net Energy Leaving given Radiosity and Irradiation
Go Heat Transfer = Area*(Radiosity-Irradiation)
Emissive Power of Non Blackbody given Emissivity
Go Emissive Power of Non Blackbody = Emissivity*Emissive Power of Blackbody
Emissivity of Body
Go Emissivity = Emissive Power of Non Blackbody/Emissive Power of Blackbody
Total Resistance in Radiation Heat Transfer given Emissivity and Number of Shields
Go Resistance = (Number of Shields+1)*((2/Emissivity)-1)
Reflected Radiation given Absorptivity and Transmissivity
Go Reflectivity = 1-Absorptivity-Transmissivity
Absorptivity given Reflectivity and Transmissivity
Go Absorptivity = 1-Reflectivity-Transmissivity
Transmissivity Given Reflectivity and Absorptivity
Go Transmissivity = 1-Absorptivity-Reflectivity
Mass of Particle Given Frequency and Speed of Light
Go Mass of Particle = [hP]*Frequency/([c]^2)
Energy of each Quanta
Go Energy of Each Quanta = [hP]*Frequency
Wavelength Given Speed of Light and Frequency
Go Wavelength = [c]/Frequency
Frequency given Speed of Light and Wavelength
Go Frequency = [c]/Wavelength
Radiation Temperature given Maximum Wavelength
Go Radiation Temperature = 2897.6/Maximum Wavelength
Maximum Wavelength at given Temperature
Go Maximum Wavelength = 2897.6/Radiation Temperature
Resistance in Radiation Heat Transfer when No Shield is Present and Equal Emissivities
Go Resistance = (2/Emissivity)-1
Reflectivity given Absorptivity for Blackbody
Go Reflectivity = 1-Absorptivity
Reflectivity given Emissivity for Blackbody
Go Reflectivity = 1-Emissivity

25 Important Formulas in Radiation Heat Transfer Calculators

Heat Transfer between Concentric Spheres
Go Heat Transfer = (Surface Area of Body 1*[Stefan-BoltZ]*((Temperature of Surface 1^4)-(Temperature of Surface 2^4)))/((1/Emissivity of Body 1)+(((1/Emissivity of Body 2)-1)*((Radius of Smaller Sphere/Radius of Larger Sphere)^2)))
Heat Transfer between Small Convex Object in Large Enclosure
Go Heat Transfer = Surface Area of Body 1*Emissivity of Body 1*[Stefan-BoltZ]*((Temperature of Surface 1^4)-(Temperature of Surface 2^4))
Radiosity given Emissive Power and Irradiation
Go Radiosity = (Emissivity*Emissive Power of Blackbody)+(Reflectivity*Irradiation)
Area of Surface 1 given Area 2 and Radiation Shape Factor for Both Surfaces
Go Surface Area of Body 1 = Surface Area of Body 2*(Radiation Shape Factor 21/Radiation Shape Factor 12)
Area of Surface 2 given Area 1 and Radiation Shape Factor for Both Surfaces
Go Surface Area of Body 2 = Surface Area of Body 1*(Radiation Shape Factor 12/Radiation Shape Factor 21)
Shape Factor 12 given Area of Both Surface and Shape Factor 21
Go Radiation Shape Factor 12 = (Surface Area of Body 2/Surface Area of Body 1)*Radiation Shape Factor 21
Shape Factor 21 given Area of Both Surface and Shape Factor 12
Go Radiation Shape Factor 21 = Radiation Shape Factor 12*(Surface Area of Body 1/Surface Area of Body 2)
Temperature of Radiation Shield Placed between Two Parallel Infinite Planes with Equal Emissivities
Go Temperature of Radiation Shield = (0.5*((Temperature of Plane 1^4)+(Temperature of Plane 2^4)))^(1/4)
Emissive Power of Blackbody
Go Emissive Power of Blackbody = [Stefan-BoltZ]*(Temperature of Blackbody^4)
Net Energy Leaving given Radiosity and Irradiation
Go Heat Transfer = Area*(Radiosity-Irradiation)
Emissive Power of Non Blackbody given Emissivity
Go Emissive Power of Non Blackbody = Emissivity*Emissive Power of Blackbody
Emissivity of Body
Go Emissivity = Emissive Power of Non Blackbody/Emissive Power of Blackbody
Total Resistance in Radiation Heat Transfer given Emissivity and Number of Shields
Go Resistance = (Number of Shields+1)*((2/Emissivity)-1)
Reflected Radiation given Absorptivity and Transmissivity
Go Reflectivity = 1-Absorptivity-Transmissivity
Absorptivity given Reflectivity and Transmissivity
Go Absorptivity = 1-Reflectivity-Transmissivity
Transmissivity Given Reflectivity and Absorptivity
Go Transmissivity = 1-Absorptivity-Reflectivity
Mass of Particle Given Frequency and Speed of Light
Go Mass of Particle = [hP]*Frequency/([c]^2)
Energy of each Quanta
Go Energy of Each Quanta = [hP]*Frequency
Frequency given Speed of Light and Wavelength
Go Frequency = [c]/Wavelength
Wavelength Given Speed of Light and Frequency
Go Wavelength = [c]/Frequency
Radiation Temperature given Maximum Wavelength
Go Radiation Temperature = 2897.6/Maximum Wavelength
Maximum Wavelength at given Temperature
Go Maximum Wavelength = 2897.6/Radiation Temperature
Resistance in Radiation Heat Transfer when No Shield is Present and Equal Emissivities
Go Resistance = (2/Emissivity)-1
Reflectivity given Absorptivity for Blackbody
Go Reflectivity = 1-Absorptivity
Reflectivity given Emissivity for Blackbody
Go Reflectivity = 1-Emissivity

Shape Factor 21 given Area of Both Surface and Shape Factor 12 Formula

Radiation Shape Factor 21 = Radiation Shape Factor 12*(Surface Area of Body 1/Surface Area of Body 2)
F21 = F12*(A1/A2)

What is Radiation?

Radiation is energy that comes from a source and travels through space at the speed of light. This energy has an electric field and a magnetic field associated with it, and has wave-like properties. You could also call radiation “electromagnetic waves”.

What is Blackbody?

A black body is defined as the body which absorbs all the electromagnetic radiation (that is light) that strikes it irrespective of the angle of incidence and frequency of the radiation.

How to Calculate Shape Factor 21 given Area of Both Surface and Shape Factor 12?

Shape Factor 21 given Area of Both Surface and Shape Factor 12 calculator uses Radiation Shape Factor 21 = Radiation Shape Factor 12*(Surface Area of Body 1/Surface Area of Body 2) to calculate the Radiation Shape Factor 21, The Shape Factor 21 given Area of Both Surface and Shape Factor 12 formula is defined as the product of shape factor 12 and the ratio of Surface area 1 by surface area 2. Radiation Shape Factor 21 is denoted by F21 symbol.

How to calculate Shape Factor 21 given Area of Both Surface and Shape Factor 12 using this online calculator? To use this online calculator for Shape Factor 21 given Area of Both Surface and Shape Factor 12, enter Radiation Shape Factor 12 (F12), Surface Area of Body 1 (A1) & Surface Area of Body 2 (A2) and hit the calculate button. Here is how the Shape Factor 21 given Area of Both Surface and Shape Factor 12 calculation can be explained with given input values -> 0.409932 = 0.59*(34.74/50).

FAQ

What is Shape Factor 21 given Area of Both Surface and Shape Factor 12?
The Shape Factor 21 given Area of Both Surface and Shape Factor 12 formula is defined as the product of shape factor 12 and the ratio of Surface area 1 by surface area 2 and is represented as F21 = F12*(A1/A2) or Radiation Shape Factor 21 = Radiation Shape Factor 12*(Surface Area of Body 1/Surface Area of Body 2). Radiation Shape Factor 12 is the fraction of radiation energy radiated by one surface which is incident on another surface when both surfaces are placed in a non-absorbing medium, The Surface Area of Body 1 is the area of body 1 through which the radiation takes place & The Surface Area of Body 2 is the area of body 2 upon which the radiation takes place.
How to calculate Shape Factor 21 given Area of Both Surface and Shape Factor 12?
The Shape Factor 21 given Area of Both Surface and Shape Factor 12 formula is defined as the product of shape factor 12 and the ratio of Surface area 1 by surface area 2 is calculated using Radiation Shape Factor 21 = Radiation Shape Factor 12*(Surface Area of Body 1/Surface Area of Body 2). To calculate Shape Factor 21 given Area of Both Surface and Shape Factor 12, you need Radiation Shape Factor 12 (F12), Surface Area of Body 1 (A1) & Surface Area of Body 2 (A2). With our tool, you need to enter the respective value for Radiation Shape Factor 12, Surface Area of Body 1 & Surface Area of Body 2 and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
Let Others Know
Facebook
Twitter
Reddit
LinkedIn
Email
WhatsApp
Copied!