Net Heat Exchange between Two Surfaces given Radiosity for Both Surface Calculator

✖Radiosity of 1st Body represents the rate at which radiation energy leaves a unit area of a surface in all directions.ⓘ Radiosity of 1st Body [J₁]			+10% -10%
✖Radiosity of 2nd Body represents the rate at which radiation energy leaves a unit area of a surface in all directions.ⓘ Radiosity of 2nd Body [J₂]			+10% -10%
✖The Surface Area of Body 1 is the area of body 1 through which the radiation takes place.ⓘ Surface Area of Body 1 [A₁]			+10% -10%
✖Radiation Shape Factor 12 is the fraction of radiation energy radiated by one surface which is incident on another surface when both surfaces are placed in a non-absorbing medium.ⓘ Radiation Shape Factor 12 [F₁₂]			+10% -10%

✖Radiation Heat Transfer is the amount of heat that is transferred per unit of time in some material, usually measured in watts (joules per second).ⓘ Net Heat Exchange between Two Surfaces given Radiosity for Both Surface [q_1-2]

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Net Heat Exchange between Two Surfaces given Radiosity for Both Surface

Formula

`"q"_{"1-2"} = ("J"_{"1"}-"J"_{"2"})/(1/("A"_{"1"}*"F"_{"12"}))`

Example

`"245.9592W"=("61W/m²"-"49W/m²")/(1/("34.74m²"*"0.59"))`

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Net Heat Exchange between Two Surfaces given Radiosity for Both Surface Solution

STEP 0: Pre-Calculation Summary

Formula Used

Radiation Heat Transfer = (Radiosity of 1st Body-Radiosity of 2nd Body)/(1/(Surface Area of Body 1*Radiation Shape Factor 12))
q_1-2 = (J₁-J₂)/(1/(A₁*F₁₂))
This formula uses 5 Variables

Variables Used

Radiation Heat Transfer - (Measured in Watt) - Radiation Heat Transfer is the amount of heat that is transferred per unit of time in some material, usually measured in watts (joules per second).
Radiosity of 1st Body - (Measured in Watt per Square Meter) - Radiosity of 1st Body represents the rate at which radiation energy leaves a unit area of a surface in all directions.
Radiosity of 2nd Body - (Measured in Watt per Square Meter) - Radiosity of 2nd Body represents the rate at which radiation energy leaves a unit area of a surface in all directions.
Surface Area of Body 1 - (Measured in Square Meter) - The Surface Area of Body 1 is the area of body 1 through which the radiation takes place.
Radiation Shape Factor 12 - Radiation Shape Factor 12 is the fraction of radiation energy radiated by one surface which is incident on another surface when both surfaces are placed in a non-absorbing medium.

STEP 1: Convert Input(s) to Base Unit

Radiosity of 1st Body: 61 Watt per Square Meter --> 61 Watt per Square Meter No Conversion Required
Radiosity of 2nd Body: 49 Watt per Square Meter --> 49 Watt per Square Meter No Conversion Required
Surface Area of Body 1: 34.74 Square Meter --> 34.74 Square Meter No Conversion Required
Radiation Shape Factor 12: 0.59 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

q_1-2 = (J₁-J₂)/(1/(A₁*F₁₂)) --> (61-49)/(1/(34.74*0.59))

Evaluating ... ...

q_1-2 = 245.9592

STEP 3: Convert Result to Output's Unit

245.9592 Watt --> No Conversion Required

FINAL ANSWER

245.9592 Watt <-- Radiation Heat Transfer

(Calculation completed in 00.005 seconds)

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Created by Ayush gupta

University School of Chemical Technology-USCT (GGSIPU), New Delhi

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< 10+ 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 Two Long Concentric Cylinder given Temp, Emissivity and Area of Both Surfaces

Go Heat Transfer = (([Stefan-BoltZ]*Surface Area of Body 1*((Temperature of Surface 1^4)-(Temperature of Surface 2^4))))/((1/Emissivity of Body 1)+((Surface Area of Body 1/Surface Area of Body 2)*((1/Emissivity of Body 2)-1)))

Radiation Heat Transfer between Plane 1 and Shield given Temperature and Emissivity of Both Surfaces

Go Heat Transfer = Area*[Stefan-BoltZ]*((Temperature of Plane 1^4)-(Temperature of Radiation Shield^4))/((1/Emissivity of Body 1)+(1/Emissivity of Radiation Shield)-1)

Radiation Heat Transfer between Plane 2 and Radiation Shield given Temperature and Emissivity

Go Heat Transfer = Area*[Stefan-BoltZ]*((Temperature of Radiation Shield^4)-(Temperature of Plane 2^4))/ ((1/Emissivity of Radiation Shield)+(1/Emissivity of Body 2)-1)

Heat Transfer between Two Infinite Parallel Planes given Temp and Emissivity of Both Surfaces

Go Heat Transfer = (Area*[Stefan-BoltZ]*((Temperature of Surface 1^4)-(Temperature of Surface 2^4)))/ ((1/Emissivity of Body 1)+(1/Emissivity of Body 2)-1)

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))

Net Heat Exchange given Area 1 and Shape Factor 12

Go Net Heat Transfer = Surface Area of Body 1*Radiation Shape Factor 12*(Emissive Power of 1st Blackbody-Emissive Power of 2nd Blackbody)

Net Heat Exchange given Area 2 and Shape Factor 21

Go Net Heat Transfer = Surface Area of Body 2*Radiation Shape Factor 21*(Emissive Power of 1st Blackbody-Emissive Power of 2nd Blackbody)

Net Heat Exchange between Two Surfaces given Radiosity for Both Surface

Go Radiation Heat Transfer = (Radiosity of 1st Body-Radiosity of 2nd Body)/(1/(Surface Area of Body 1*Radiation Shape Factor 12))

Net Heat Transfer from Surface given Emissivity, Radiosity and Emissive Power

Go Heat Transfer = (((Emissivity*Area)*(Emissive Power of Blackbody-Radiosity))/(1-Emissivity))

< 25 Important Formulas in Radiation Heat Transfer Calculators

Heat Transfer between Concentric Spheres

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

Net Heat Exchange between Two Surfaces given Radiosity for Both Surface Formula

Radiation Heat Transfer = (Radiosity of 1st Body-Radiosity of 2nd Body)/(1/(Surface Area of Body 1*Radiation Shape Factor 12))
q_1-2 = (J₁-J₂)/(1/(A₁*F₁₂))

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 Blackbody?

A black body is defined as the body which absorbs all the electromagnetic radiation (that is light) that strikes it irrespective of the angle of incidence and frequency of the radiation.

How to Calculate Net Heat Exchange between Two Surfaces given Radiosity for Both Surface?

Net Heat Exchange between Two Surfaces given Radiosity for Both Surface calculator uses Radiation Heat Transfer = (Radiosity of 1st Body-Radiosity of 2nd Body)/(1/(Surface Area of Body 1*Radiation Shape Factor 12)) to calculate the Radiation Heat Transfer, The Net Heat Exchange Between Two Surfaces given Radiosity for Both Surface formula is defined as the function of surface area of 1st surface, shape factor and radiosity of both the surfaces. Radiation Heat Transfer is denoted by q_1-2 symbol.

How to calculate Net Heat Exchange between Two Surfaces given Radiosity for Both Surface using this online calculator? To use this online calculator for Net Heat Exchange between Two Surfaces given Radiosity for Both Surface, enter Radiosity of 1st Body (J₁), Radiosity of 2nd Body (J₂), Surface Area of Body 1 (A₁) & Radiation Shape Factor 12 (F₁₂) and hit the calculate button. Here is how the Net Heat Exchange between Two Surfaces given Radiosity for Both Surface calculation can be explained with given input values -> 245.9592 = (61-49)/(1/(34.74*0.59)).

FAQ

What is Net Heat Exchange between Two Surfaces given Radiosity for Both Surface?

The Net Heat Exchange Between Two Surfaces given Radiosity for Both Surface formula is defined as the function of surface area of 1st surface, shape factor and radiosity of both the surfaces and is represented as q_1-2 = (J₁-J₂)/(1/(A₁*F₁₂)) or Radiation Heat Transfer = (Radiosity of 1st Body-Radiosity of 2nd Body)/(1/(Surface Area of Body 1*Radiation Shape Factor 12)). Radiosity of 1st Body represents the rate at which radiation energy leaves a unit area of a surface in all directions, Radiosity of 2nd Body represents the rate at which radiation energy leaves a unit area of a surface in all directions, The Surface Area of Body 1 is the area of body 1 through which the radiation takes place & Radiation Shape Factor 12 is the fraction of radiation energy radiated by one surface which is incident on another surface when both surfaces are placed in a non-absorbing medium.

How to calculate Net Heat Exchange between Two Surfaces given Radiosity for Both Surface?

The Net Heat Exchange Between Two Surfaces given Radiosity for Both Surface formula is defined as the function of surface area of 1st surface, shape factor and radiosity of both the surfaces is calculated using Radiation Heat Transfer = (Radiosity of 1st Body-Radiosity of 2nd Body)/(1/(Surface Area of Body 1*Radiation Shape Factor 12)). To calculate Net Heat Exchange between Two Surfaces given Radiosity for Both Surface, you need Radiosity of 1st Body (J₁), Radiosity of 2nd Body (J₂), Surface Area of Body 1 (A₁) & Radiation Shape Factor 12 (F₁₂). With our tool, you need to enter the respective value for Radiosity of 1st Body, Radiosity of 2nd Body, Surface Area of Body 1 & Radiation Shape Factor 12 and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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