Infinite parallel planes Calculator

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Interchange Factor between Surfaces

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Kirchhoff's Law

✖The Emissivity of Body 1 is the ratio of the energy radiated from a body's surface to that radiated from a perfect emitter.ⓘ Emissivity of Body 1 [ε₁]			+10% -10%
✖The Emissivity of Body 2 is the ratio of the energy radiated from a body's surface to that radiated from a perfect emitter.ⓘ Emissivity of Body 2 [ε₂]			+10% -10%

✖Interchange factor is defined as the fraction of the energy leaving an isothermal area of a body that is incident upon the area of another body.ⓘ Infinite parallel planes [f_1-2]

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Formula

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Infinite parallel planes

Formula

`"f"_{"1-2"} = ((1/"ε"_{"1"})+(1/"ε"_{"2"})-1)^(-1)`

Example

`"0.206897"=((1/"0.4")+(1/"0.3")-1)^(-1)`

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Infinite parallel planes Solution

STEP 0: Pre-Calculation Summary

Formula Used

Interchange Factor = ((1/Emissivity of Body 1)+(1/Emissivity of Body 2)-1)^(-1)
f_1-2 = ((1/ε₁)+(1/ε₂)-1)^(-1)
This formula uses 3 Variables

Variables Used

Interchange Factor - Interchange factor is defined as the fraction of the energy leaving an isothermal area of a body that is incident upon the area of another body.
Emissivity of Body 1 - The Emissivity of Body 1 is the ratio of the energy radiated from a body's surface to that radiated from a perfect emitter.
Emissivity of Body 2 - The Emissivity of Body 2 is the ratio of the energy radiated from a body's surface to that radiated from a perfect emitter.

STEP 1: Convert Input(s) to Base Unit

Emissivity of Body 1: 0.4 --> No Conversion Required
Emissivity of Body 2: 0.3 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

f_1-2 = ((1/ε₁)+(1/ε₂)-1)^(-1) --> ((1/0.4)+(1/0.3)-1)^(-1)

Evaluating ... ...

f_1-2 = 0.206896551724138

STEP 3: Convert Result to Output's Unit

0.206896551724138 --> No Conversion Required

FINAL ANSWER

0.206896551724138 ≈ 0.206897 <-- Interchange Factor

(Calculation completed in 00.004 seconds)

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Created by Ravi Khiyani

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< 5 Interchange Factor between Surfaces Calculators

Interchange factor for infinitely long concentric cylinders

Go Interchange Factor = ((1/Emissivity of Body 1)+((Surface Area of Body 1/Surface Area of Body 2)*((1/Emissivity of Body 2)-1)))^(-1)

Interchange factor for large body enclosed by another body

Go Interchange Factor = ((1/Emissivity of Body 1)+((Surface Area of Body 1/Surface Area of Body 2)*((1/Emissivity of Body 2)-1)))^(-1)

Interchange factor for infinitely long concentric spheres

Go Interchange Factor = ((1/Emissivity of Body 1)+((Surface Area of Body 1/Surface Area of Body 2)*((1/Emissivity of Body 2)-1)))^(-1)

Infinite parallel planes

Go Interchange Factor = ((1/Emissivity of Body 1)+(1/Emissivity of Body 2)-1)^(-1)

Interchange factor for two rectangles with common side at right angles to each other

Go Interchange Factor = Emissivity of Body 1*Emissivity of Body 2

Infinite parallel planes Formula

Interchange Factor = ((1/Emissivity of Body 1)+(1/Emissivity of Body 2)-1)^(-1)
f_1-2 = ((1/ε₁)+(1/ε₂)-1)^(-1)

What is Interchange factor?

Interchange factor is defined as the fraction of the energy leaving an isothermal area of a body that is incident upon the area of another body. It is also known as the Equivalent Emissivity.

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 Infinite parallel planes?

Infinite parallel planes calculator uses Interchange Factor = ((1/Emissivity of Body 1)+(1/Emissivity of Body 2)-1)^(-1) to calculate the Interchange Factor, The Infinite parallel planes formula calculates the interchange factor which is the fraction of the energy leaving an area of plane 1 that is incident upon the area of plane 2. Interchange Factor is denoted by f_1-2 symbol.

How to calculate Infinite parallel planes using this online calculator? To use this online calculator for Infinite parallel planes, enter Emissivity of Body 1 (ε₁) & Emissivity of Body 2 (ε₂) and hit the calculate button. Here is how the Infinite parallel planes calculation can be explained with given input values -> 0.206897 = ((1/0.4)+(1/0.3)-1)^(-1).

FAQ

What is Infinite parallel planes?

The Infinite parallel planes formula calculates the interchange factor which is the fraction of the energy leaving an area of plane 1 that is incident upon the area of plane 2 and is represented as f_1-2 = ((1/ε₁)+(1/ε₂)-1)^(-1) or Interchange Factor = ((1/Emissivity of Body 1)+(1/Emissivity of Body 2)-1)^(-1). The Emissivity of Body 1 is the ratio of the energy radiated from a body's surface to that radiated from a perfect emitter & The Emissivity of Body 2 is the ratio of the energy radiated from a body's surface to that radiated from a perfect emitter.

How to calculate Infinite parallel planes?

The Infinite parallel planes formula calculates the interchange factor which is the fraction of the energy leaving an area of plane 1 that is incident upon the area of plane 2 is calculated using Interchange Factor = ((1/Emissivity of Body 1)+(1/Emissivity of Body 2)-1)^(-1). To calculate Infinite parallel planes, you need Emissivity of Body 1 (ε₁) & Emissivity of Body 2 (ε₂). With our tool, you need to enter the respective value for Emissivity of Body 1 & Emissivity of Body 2 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 Interchange Factor?

In this formula, Interchange Factor uses Emissivity of Body 1 & Emissivity of Body 2. We can use 4 other way(s) to calculate the same, which is/are as follows -

Interchange Factor = ((1/Emissivity of Body 1)+((Surface Area of Body 1/Surface Area of Body 2)*((1/Emissivity of Body 2)-1)))^(-1)
Interchange Factor = ((1/Emissivity of Body 1)+((Surface Area of Body 1/Surface Area of Body 2)*((1/Emissivity of Body 2)-1)))^(-1)
Interchange Factor = Emissivity of Body 1*Emissivity of Body 2
Interchange Factor = ((1/Emissivity of Body 1)+((Surface Area of Body 1/Surface Area of Body 2)*((1/Emissivity of Body 2)-1)))^(-1)

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