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

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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). Check FAQs

q 1-2 = \frac{J 1 - J 2}{\frac{1}{A 1 \cdot F 12}}

q_1-2 - Radiation Heat Transfer?J₁ - Radiosity of 1st Body?J₂ - Radiosity of 2nd Body?A₁ - Surface Area of Body 1?F₁₂ - Radiation Shape Factor 12?

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

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Here is how the Net Heat Exchange between Two Surfaces given Radiosity for Both Surface equation looks like with Values.

Here is how the Net Heat Exchange between Two Surfaces given Radiosity for Both Surface equation looks like with Units.

Here is how the Net Heat Exchange between Two Surfaces given Radiosity for Both Surface equation looks like.

245.9592 = \frac{61 - 49}{\frac{1}{34.74 \cdot 0.59}}

245.9592W = \frac{61W/m² - 49W/m²}{\frac{1}{34.74m² \cdot 0.59}}

245.9592 = \frac{61 - 49}{\frac{1}{34.74 \cdot 0.59}}

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

Follow our step by step solution on how to calculate Net Heat Exchange between Two Surfaces given Radiosity for Both Surface?

FIRST Step Consider the formula

q 1-2 = \frac{J 1 - J 2}{\frac{1}{A 1 \cdot F 12}}

Next Step Substitute values of Variables

∴

q 1-2 = \frac{61W/m² - 49W/m²}{\frac{1}{34.74m² \cdot 0.59}}

Next Step Prepare to Evaluate

∴

q 1-2 = \frac{61 - 49}{\frac{1}{34.74 \cdot 0.59}}

LAST Step Evaluate

∴

q 1-2 = 245.9592W

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

Variables

Radiation Heat Transfer

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).

Symbol: q_1-2

Measurement: PowerUnit: W

Note: Value should be greater than 0.

Formulas to find Radiation Heat Transfer

Radiosity of 1st Body

Radiosity of 1st Body represents the rate at which radiation energy leaves a unit area of a surface in all directions.

Symbol: J₁

Measurement: Heat Flux DensityUnit: W/m²

Note: Value should be greater than 0.

Formulas to find Radiosity of 1st Body

Radiosity of 2nd Body

Radiosity of 2nd Body represents the rate at which radiation energy leaves a unit area of a surface in all directions.

Symbol: J₂

Measurement: Heat Flux DensityUnit: W/m²

Note: Value should be greater than 0.

Formulas to find Radiosity of 2nd Body

Surface Area of Body 1

The Surface Area of Body 1 is the area of body 1 through which the radiation takes place.

Symbol: A₁

Measurement: AreaUnit: m²

Note: Value can be positive or negative.

Formulas to find Surface Area of Body 1

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.

Symbol: F₁₂

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Radiation Shape Factor 12

Other formulas in Radiation Heat Transfer category

Go Absorptivity given Reflectivity and Transmissivity

α = 1 - ρ - 𝜏

Go Area of Surface 1 given Area 2 and Radiation Shape Factor for Both Surfaces

A 1 = A 2 \cdot (\frac{F 21}{F 12})

Go Area of Surface 2 given Area 1 and Radiation Shape Factor for Both Surfaces

A 2 = A 1 \cdot (\frac{F 12}{F 21})

Go Emissive Power of Blackbody

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

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

Net Heat Exchange between Two Surfaces given Radiosity for Both Surface evaluator uses Radiation Heat Transfer = (Radiosity of 1st Body-Radiosity of 2nd Body)/(1/(Surface Area of Body 1*Radiation Shape Factor 12)) to evaluate 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 evaluate Net Heat Exchange between Two Surfaces given Radiosity for Both Surface using this online evaluator? To use this online evaluator 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.

FAQs on Net Heat Exchange between Two Surfaces given Radiosity for Both Surface

What is the formula to find Net Heat Exchange between Two Surfaces given Radiosity for Both Surface?

The formula of Net Heat Exchange between Two Surfaces given Radiosity for Both Surface is expressed as Radiation Heat Transfer = (Radiosity of 1st Body-Radiosity of 2nd Body)/(1/(Surface Area of Body 1*Radiation Shape Factor 12)). Here is an example- 245.9592 = (61-49)/(1/(34.74*0.59)).

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

With Radiosity of 1st Body (J₁), Radiosity of 2nd Body (J₂), Surface Area of Body 1 (A₁) & Radiation Shape Factor 12 (F₁₂) we can find Net Heat Exchange between Two Surfaces given Radiosity for Both Surface using the formula - Radiation Heat Transfer = (Radiosity of 1st Body-Radiosity of 2nd Body)/(1/(Surface Area of Body 1*Radiation Shape Factor 12)).

Can the Net Heat Exchange between Two Surfaces given Radiosity for Both Surface be negative?

No, the Net Heat Exchange between Two Surfaces given Radiosity for Both Surface, measured in Power cannot be negative.

Which unit is used to measure Net Heat Exchange between Two Surfaces given Radiosity for Both Surface?

Net Heat Exchange between Two Surfaces given Radiosity for Both Surface is usually measured using the Watt[W] for Power. Kilowatt[W], Milliwatt[W], Microwatt[W] are the few other units in which Net Heat Exchange between Two Surfaces given Radiosity for Both Surface can be measured.

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

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

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

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

Other formulas in Radiation Heat Transfer category

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

FAQs on Net Heat Exchange between Two Surfaces given Radiosity for Both Surface

Variable Name