Radiosity Calculator

✖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.ⓘ Energy Leaving Surface [E_Leaving]			+10% -10%
✖Body Surface Area is the total surface area of the human body.ⓘ Body Surface Area [SA_Body]			+10% -10%
✖Time in seconds is what a clock reads, it is a scalar quantity.ⓘ Time in seconds [t_sec]			+10% -10%

✖Radiosity represents the rate at which radiation energy leaves a unit area of a surface in all directions.ⓘ Radiosity [J]

⎘ Copy

👎

Formula

✖

Radiosity

Formula

`"J" = "E"_{"Leaving"}/("SA"_{"Body"}*"t"_{"sec"})`

Example

`"0.058824W/m²"="19J"/("8.5m²"*"38s")`

Calculator

LaTeX

Reset

👍

Download Basics of Modes of Heat Transfer Formulas PDF

Radiosity Solution

STEP 0: Pre-Calculation Summary

Formula Used

Radiosity = Energy Leaving Surface/(Body Surface Area*Time in seconds)
J = E_Leaving/(SA_Body*t_sec)
This formula uses 4 Variables

Variables Used

Radiosity - (Measured in Watt per Square Meter) - Radiosity represents the rate at which radiation energy leaves a unit area of a surface in all directions.
Energy Leaving Surface - (Measured in Joule) - 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.
Body Surface Area - (Measured in Square Meter) - Body Surface Area is the total surface area of the human body.
Time in seconds - (Measured in Second) - Time in seconds is what a clock reads, it is a scalar quantity.

STEP 1: Convert Input(s) to Base Unit

Energy Leaving Surface: 19 Joule --> 19 Joule No Conversion Required
Body Surface Area: 8.5 Square Meter --> 8.5 Square Meter No Conversion Required
Time in seconds: 38 Second --> 38 Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

J = E_Leaving/(SA_Body*t_sec) --> 19/(8.5*38)

Evaluating ... ...

J = 0.0588235294117647

STEP 3: Convert Result to Output's Unit

0.0588235294117647 Watt per Square Meter --> No Conversion Required

FINAL ANSWER

0.0588235294117647 ≈ 0.058824 Watt per Square Meter <-- Radiosity

(Calculation completed in 00.020 seconds)

You are here -

Home » Engineering » Chemical Engineering » Heat Transfer » Modes of Heat Transfer » Basics of Modes of Heat Transfer » Radiosity

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 Soupayan banerjee

National University of Judicial Science (NUJS), Kolkata

Soupayan banerjee has verified this Calculator and 800+ more calculators!

< 13 Basics of Modes of Heat Transfer Calculators

Thermal Resistance of Spherical Wall

Go Thermal Resistance of Sphere Without Convection = (Radius of 2nd Concentric Sphere-Radius of 1st Concentric Sphere)/(4*pi*Thermal Conductivity*Radius of 1st Concentric Sphere*Radius of 2nd Concentric Sphere)

Radiation Thermal Resistance

Go Thermal Resistance = 1/(Emissivity*[Stefan-BoltZ]*Base Area*(Temperature of Surface 1+Temperature of Surface 2)*(((Temperature of Surface 1)^2)+((Temperature of Surface 2)^2)))

Radial Heat Flowing through Cylinder

Go Heat = Thermal Conductivity*2*pi*Temperature Difference*Length of Cylinder/(ln(Outer Radius of Cylinder/Inner Radius of Cylinder))

Heat Transfer through Plane Wall or Surface

Go Heat Flow Rate = -Thermal Conductivity*Cross Sectional Area*(Outside Temperature-Inside Temperature)/Width of Plane Surface

Radiative Heat Transfer

Go Heat = [Stefan-BoltZ]*Body Surface Area*Geometric View Factor*(Temperature of Surface 1^4-Temperature of Surface 2^4)

Rate of Convective Heat Transfer

Go Heat Flow Rate = Heat Transfer Coefficient*Exposed Surface Area*(Surface Temperature-Ambient Air Temperature)

Total Emissive Power of Radiating Body

Go Emissive Power per Unit Area = (Emissivity*(Effective Radiating Temperature)^4)*[Stefan-BoltZ]

Thermal Diffusivity

Go Thermal Diffusivity = Thermal Conductivity/(Density*Specific Heat Capacity)

Radiosity

Go Radiosity = Energy Leaving Surface/(Body Surface Area*Time in seconds)

Thermal Resistance in Convection Heat Transfer

Go Thermal Resistance = 1/(Exposed Surface Area*Co-efficient of Convective Heat Transfer)

Overall Heat Transfer based on Thermal Resistance

Go Overall Heat Transfer = Overall Temperature Difference/Total Thermal Resistance

Temperature Difference using Thermal Analogy to Ohm's Law

Go Temperature Difference = Heat Flow Rate*Thermal Resistance

Ohm's Law

Go Voltage = Electric Current*Resistance

Radiosity Formula

Radiosity = Energy Leaving Surface/(Body Surface Area*Time in seconds)
J = E_Leaving/(SA_Body*t_sec)

What is Heat Transfer?

Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy between physical systems. Heat transfer is classified into various mechanisms, such as thermal conduction, thermal convection, thermal radiation, and transfer of energy by phase changes.

Define Thermal Conductivity & Factors affecting it?

Thermal conductivity is defined as the ability of a substance to conduct heat. Factors Affecting The Thermal Conductivity are: Moisture, Density of material, Pressure, Temperature & Structure of material.

How to Calculate Radiosity?

Radiosity calculator uses Radiosity = Energy Leaving Surface/(Body Surface Area*Time in seconds) to calculate 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 calculate Radiosity using this online calculator? To use this online calculator for Radiosity, enter Energy Leaving Surface (E_Leaving), Body Surface Area (SA_Body) & Time in seconds (t_sec) and hit the calculate button. Here is how the Radiosity calculation can be explained with given input values -> 0.058824 = 19/(8.5*38).

FAQ

What is 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 and is represented as J = E_Leaving/(SA_Body*t_sec) or Radiosity = Energy Leaving Surface/(Body Surface Area*Time in seconds). 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, Body Surface Area is the total surface area of the human body & Time in seconds is what a clock reads, it is a scalar quantity.

How to calculate 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 is calculated using Radiosity = Energy Leaving Surface/(Body Surface Area*Time in seconds). To calculate Radiosity, you need Energy Leaving Surface (E_Leaving), Body Surface Area (SA_Body) & Time in seconds (t_sec). With our tool, you need to enter the respective value for Energy Leaving Surface, Body Surface Area & Time in seconds and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

Home

FREE PDFs

🔍 Search