Total Resistance in Radiation Heat Transfer given Emissivity and Number of Shields Solution

STEP 0: Pre-Calculation Summary
Formula Used
Resistance = (Number of Shields+1)*((2/Emissivity)-1)
R = (n+1)*((2/ε)-1)
This formula uses 3 Variables
Variables Used
Resistance - Resistance for heat radiation is represented as the reciprocal of the product of the radiative heat transfer coefficient and the surface area of the object that generates heat.
Number of Shields - Number of Shields is defined as the total number of shields or resistances present between the surfaces.
Emissivity - Emissivity is the ability of an object to emit infrared energy. Emissivity can have a value from 0 (shiny mirror) to 1.0 (blackbody). Most organic or oxidized surfaces have emissivity close to 0.95.
STEP 1: Convert Input(s) to Base Unit
Number of Shields: 2 --> No Conversion Required
Emissivity: 0.95 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
R = (n+1)*((2/ε)-1) --> (2+1)*((2/0.95)-1)
Evaluating ... ...
R = 3.31578947368421
STEP 3: Convert Result to Output's Unit
3.31578947368421 --> No Conversion Required
FINAL ANSWER
3.31578947368421 3.315789 <-- Resistance
(Calculation completed in 00.004 seconds)

Credits

Creator Image
Created by Ayush gupta
University School of Chemical Technology-USCT (GGSIPU), New Delhi
Ayush gupta has created this Calculator and 300+ more calculators!
Verifier Image
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

Total Resistance in Radiation Heat Transfer given Emissivity and Number of Shields Formula

Resistance = (Number of Shields+1)*((2/Emissivity)-1)
R = (n+1)*((2/ε)-1)

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 Emissivity?

Emissivity is defined as the ratio of the energy radiated from a material's surface to that radiated from a perfect emitter, known as a blackbody, at the same temperature and wavelength and under the same viewing conditions. It is a dimensionless number between 0 (for a perfect reflector) and 1 (for a perfect emitter).

How to Calculate Total Resistance in Radiation Heat Transfer given Emissivity and Number of Shields?

Total Resistance in Radiation Heat Transfer given Emissivity and Number of Shields calculator uses Resistance = (Number of Shields+1)*((2/Emissivity)-1) to calculate the Resistance, The Total Resistance in Radiation Heat Transfer given Emissivity and Number of Shields formula is defined as the function of number of shields and emissivity. Resistance is denoted by R symbol.

How to calculate Total Resistance in Radiation Heat Transfer given Emissivity and Number of Shields using this online calculator? To use this online calculator for Total Resistance in Radiation Heat Transfer given Emissivity and Number of Shields, enter Number of Shields (n) & Emissivity (ε) and hit the calculate button. Here is how the Total Resistance in Radiation Heat Transfer given Emissivity and Number of Shields calculation can be explained with given input values -> 3.315789 = (2+1)*((2/0.95)-1).

FAQ

What is Total Resistance in Radiation Heat Transfer given Emissivity and Number of Shields?
The Total Resistance in Radiation Heat Transfer given Emissivity and Number of Shields formula is defined as the function of number of shields and emissivity and is represented as R = (n+1)*((2/ε)-1) or Resistance = (Number of Shields+1)*((2/Emissivity)-1). Number of Shields is defined as the total number of shields or resistances present between the surfaces & Emissivity is the ability of an object to emit infrared energy. Emissivity can have a value from 0 (shiny mirror) to 1.0 (blackbody). Most organic or oxidized surfaces have emissivity close to 0.95.
How to calculate Total Resistance in Radiation Heat Transfer given Emissivity and Number of Shields?
The Total Resistance in Radiation Heat Transfer given Emissivity and Number of Shields formula is defined as the function of number of shields and emissivity is calculated using Resistance = (Number of Shields+1)*((2/Emissivity)-1). To calculate Total Resistance in Radiation Heat Transfer given Emissivity and Number of Shields, you need Number of Shields (n) & Emissivity (ε). With our tool, you need to enter the respective value for Number of Shields & Emissivity and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Resistance?
In this formula, Resistance uses Number of Shields & Emissivity. We can use 2 other way(s) to calculate the same, which is/are as follows -
  • Resistance = (2/Emissivity)-1
  • Resistance = (2/Emissivity)-1
Let Others Know
Facebook
Twitter
Reddit
LinkedIn
Email
WhatsApp
Copied!