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The Interchange Factor is a measure of the efficiency of heat transfer between two surfaces through radiation, influencing thermal performance in mechanical systems. Check FAQs
f1-2=((1ε1)+((A1A2)((1ε2)-1)))-1
f1-2 - Interchange Factor?ε1 - Emissivity of Body 1?A1 - Surface Area of Body 1?A2 - Surface Area of Body 2?ε2 - Emissivity of Body 2?

Interchange factor for large body enclosed by another body Example

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Here is how the Interchange factor for large body enclosed by another body equation looks like with Values.

Here is how the Interchange factor for large body enclosed by another body equation looks like with Units.

Here is how the Interchange factor for large body enclosed by another body equation looks like.

0.1395Edit=((10.4Edit)+((100Edit50Edit)((10.3Edit)-1)))-1
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Interchange factor for large body enclosed by another body Solution

Follow our step by step solution on how to calculate Interchange factor for large body enclosed by another body?

FIRST Step Consider the formula
f1-2=((1ε1)+((A1A2)((1ε2)-1)))-1
Next Step Substitute values of Variables
f1-2=((10.4)+((10050)((10.3)-1)))-1
Next Step Prepare to Evaluate
f1-2=((10.4)+((10050)((10.3)-1)))-1
Next Step Evaluate
f1-2=0.13953488372093
LAST Step Rounding Answer
f1-2=0.1395

Interchange factor for large body enclosed by another body Formula Elements

Variables
Interchange Factor
The Interchange Factor is a measure of the efficiency of heat transfer between two surfaces through radiation, influencing thermal performance in mechanical systems.
Symbol: f1-2
Measurement: NAUnit: Unitless
Note: Value should be between 0 to 1.
Emissivity of Body 1
The Emissivity of Body 1 is a measure of how effectively the surface emits thermal radiation compared to a perfect black body at the same temperature.
Symbol: ε1
Measurement: NAUnit: Unitless
Note: Value should be between 0 to 1.
Surface Area of Body 1
The Surface Area of Body 1 is the total area exposed to the environment, influencing heat transfer and radiation between surfaces in mechanical systems.
Symbol: A1
Measurement: AreaUnit:
Note: Value can be positive or negative.
Surface Area of Body 2
The Surface Area of Body 2 is the total area exposed to radiation, influencing heat transfer between surfaces in thermal systems.
Symbol: A2
Measurement: AreaUnit:
Note: Value can be positive or negative.
Emissivity of Body 2
The Emissivity of Body 2 is a measure of how effectively the surface emits thermal radiation compared to a perfect black body at the same temperature.
Symbol: ε2
Measurement: NAUnit: Unitless
Note: Value should be between 0 to 1.

Other Formulas to find Interchange Factor

​Go Interchange Factor for Infinite parallel planes
f1-2=((1ε1)+(1ε2)-1)-1
​Go Interchange factor for infinitely long concentric cylinders
f1-2=((1ε1)+((A1A2)((1ε2)-1)))-1
​Go Interchange factor for infinitely long concentric spheres
f1-2=((1ε1)+((A1A2)((1ε2)-1)))-1
​Go Interchange factor for two rectangles with common side at right angles to each other
f1-2=ε1ε2

How to Evaluate Interchange factor for large body enclosed by another body?

Interchange factor for large body enclosed by another body evaluator uses Interchange Factor = ((1/Emissivity of Body 1)+((Surface Area of Body 1/Surface Area of Body 2)*((1/Emissivity of Body 2)-1)))^(-1) to evaluate the Interchange Factor, Interchange factor for large body enclosed by another body formula is defined as a measure of the radiant energy exchange between two bodies of different sizes and emissivities, used to calculate the radiant heat transfer between them in various radiation applications. Interchange Factor is denoted by f1-2 symbol.

How to evaluate Interchange factor for large body enclosed by another body using this online evaluator? To use this online evaluator for Interchange factor for large body enclosed by another body, enter Emissivity of Body 1 1), Surface Area of Body 1 (A1), Surface Area of Body 2 (A2) & Emissivity of Body 2 2) and hit the calculate button.

FAQs on Interchange factor for large body enclosed by another body

What is the formula to find Interchange factor for large body enclosed by another body?
The formula of Interchange factor for large body enclosed by another body is expressed as Interchange Factor = ((1/Emissivity of Body 1)+((Surface Area of Body 1/Surface Area of Body 2)*((1/Emissivity of Body 2)-1)))^(-1). Here is an example- 0.139535 = ((1/0.4)+((100/50)*((1/0.3)-1)))^(-1).
How to calculate Interchange factor for large body enclosed by another body?
With Emissivity of Body 1 1), Surface Area of Body 1 (A1), Surface Area of Body 2 (A2) & Emissivity of Body 2 2) we can find Interchange factor for large body enclosed by another body using the formula - Interchange Factor = ((1/Emissivity of Body 1)+((Surface Area of Body 1/Surface Area of Body 2)*((1/Emissivity of Body 2)-1)))^(-1).
What are the other ways to Calculate Interchange Factor?
Here are the different ways to Calculate Interchange Factor-
  • Interchange Factor=((1/Emissivity of Body 1)+(1/Emissivity of Body 2)-1)^(-1)OpenImg
  • Interchange Factor=((1/Emissivity of Body 1)+((Surface Area of Body 1/Surface Area of Body 2)*((1/Emissivity of Body 2)-1)))^(-1)OpenImg
  • Interchange Factor=((1/Emissivity of Body 1)+((Surface Area of Body 1/Surface Area of Body 2)*((1/Emissivity of Body 2)-1)))^(-1)OpenImg
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