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Radiosity Formula

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Radiosity represents the rate at which radiation energy leaves a unit area of a surface in all directions. Check FAQs

J = \frac{E Leaving}{SA Body \cdot t sec}

J - Radiosity?E_Leaving - Energy Leaving Surface?SA_Body - Body Surface Area?t_sec - Time in seconds?

Radiosity Example

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With units

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Here is how the Radiosity equation looks like with Values.

Here is how the Radiosity equation looks like with Units.

Here is how the Radiosity equation looks like.

0.0588 = \frac{19}{8.5 \cdot 38}

0.0588W/m² = \frac{19J}{8.5m² \cdot 38s}

0.0588 = \frac{19}{8.5 \cdot 38}

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Radiosity Solution

Follow our step by step solution on how to calculate Radiosity?

FIRST Step Consider the formula

J = \frac{E Leaving}{SA Body \cdot t sec}

Next Step Substitute values of Variables

∴

J = \frac{19J}{8.5m² \cdot 38s}

Next Step Prepare to Evaluate

∴

J = \frac{19}{8.5 \cdot 38}

Next Step Evaluate

∴

J = 0.0588235294117647W/m²

LAST Step Rounding Answer

∴

J = 0.0588W/m²

Radiosity Formula Elements

Variables

Radiosity

Radiosity represents the rate at which radiation energy leaves a unit area of a surface in all directions.

Symbol: J

Measurement: Heat Flux DensityUnit: W/m²

Note: Value should be greater than 0.

Formulas to find Radiosity

Energy Leaving Surface

Energy Leaving Surface is defined as the total amount of emitted and reflected radiation leaving a surface, in the fields of optics and heat transfer.

Symbol: E_Leaving

Measurement: EnergyUnit: J

Note: Value should be greater than 0.

Formulas to find Energy Leaving Surface

Body Surface Area

Body Surface Area is the total surface area of the human body.

Symbol: SA_Body

Measurement: AreaUnit: m²

Note: Value should be greater than 0.

Formulas to find Body Surface Area

Time in seconds

Time in seconds is what a clock reads, it is a scalar quantity.

Symbol: t_sec

Measurement: TimeUnit: s

Note: Value should be greater than 0.

Formulas to find Time in seconds

Other formulas in Basics of Modes of Heat Transfer category

Go Heat Transfer through Plane Wall or Surface

q = - k 1 \cdot A c \cdot \frac{t o - t i}{w}

Go Total Emissive Power of Radiating Body

E b = (ε \cdot {(T e)}^{4}) \cdot [Stefan-BoltZ]

Go Radial Heat Flowing through Cylinder

Q = k 1 \cdot 2 \cdot π \cdot ΔT \cdot \frac{l}{\ln (\frac{r outer}{r inner})}

Go Radiative Heat Transfer

Q = [Stefan-BoltZ] \cdot SA Body \cdot F \cdot ({T 1}^{4} - {T 2}^{4})

How to Evaluate Radiosity?

Radiosity evaluator uses Radiosity = Energy Leaving Surface/(Body Surface Area*Time in seconds) to evaluate the Radiosity, The Radiosity formula is defined as convenient quantity in optics and heat transfer that represents the total radiant flux density (i.e. power per area) of the radiation leaving a surface. Radiosity is denoted by J symbol.

How to evaluate Radiosity using this online evaluator? To use this online evaluator for Radiosity, enter Energy Leaving Surface (E_Leaving), Body Surface Area (SA_Body) & Time in seconds (t_sec) and hit the calculate button.

FAQs on Radiosity

What is the formula to find Radiosity?

The formula of Radiosity is expressed as Radiosity = Energy Leaving Surface/(Body Surface Area*Time in seconds). Here is an example- 0.058824 = 19/(8.5*38).

How to calculate Radiosity?

With Energy Leaving Surface (E_Leaving), Body Surface Area (SA_Body) & Time in seconds (t_sec) we can find Radiosity using the formula - Radiosity = Energy Leaving Surface/(Body Surface Area*Time in seconds).

Can the Radiosity be negative?

No, the Radiosity, measured in Heat Flux Density cannot be negative.

Which unit is used to measure Radiosity?

Radiosity is usually measured using the Watt per Square Meter[W/m²] for Heat Flux Density. Kilowatt per Square Meter[W/m²], Watt per Square Centimeter[W/m²], Watt per Square Inch[W/m²] are the few other units in which Radiosity can be measured.

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Radiosity Formula

Radiosity Example

Radiosity Solution

Radiosity Formula Elements

Other formulas in Basics of Modes of Heat Transfer category

How to Evaluate Radiosity?

FAQs on Radiosity

Variable Name