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Convective Heat Transfer to Surface Formula

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Convection Heat Transfer often referred to simply as convection, is the transfer of heat from one place to another by the movement of fluids. Check FAQs

q conv = [Stefan-BoltZ] \cdot ε \cdot {T w}^{4} - q rad

q_conv - Convection Heat Transfer?ε - Emissivity?T_w - Temperature of wall in Kelvin?q_rad - Radiative Heat Transfer?[Stefan-BoltZ] - Stefan-Boltzmann Constant?

Convective Heat Transfer to Surface Example

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Here is how the Convective Heat Transfer to Surface equation looks like with Values.

Here is how the Convective Heat Transfer to Surface equation looks like with Units.

Here is how the Convective Heat Transfer to Surface equation looks like.

777.9992 = 5.7E-8 \cdot 0.95 \cdot 357^{4} - 97

777.9992W/m² = 5.7E-8 \cdot 0.95 \cdot {357K}^{4} - 97W/m²

777.9992 = 5.7E-8 \cdot 0.95 \cdot 357^{4} - 97

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Convective Heat Transfer to Surface Solution

Follow our step by step solution on how to calculate Convective Heat Transfer to Surface?

FIRST Step Consider the formula

q conv = [Stefan-BoltZ] \cdot ε \cdot {T w}^{4} - q rad

Next Step Substitute values of Variables

∴

q conv = [Stefan-BoltZ] \cdot 0.95 \cdot {357K}^{4} - 97W/m²

Next Step Substitute values of Constants

∴

q conv = 5.7E-8 \cdot 0.95 \cdot {357K}^{4} - 97W/m²

Next Step Prepare to Evaluate

∴

q conv = 5.7E-8 \cdot 0.95 \cdot 357^{4} - 97

Next Step Evaluate

∴

q conv = 777.999164110626W/m²

LAST Step Rounding Answer

∴

q conv = 777.9992W/m²

Convective Heat Transfer to Surface Formula Elements

Variables

Constants

Convection Heat Transfer

Convection Heat Transfer often referred to simply as convection, is the transfer of heat from one place to another by the movement of fluids.

Symbol: q_conv

Measurement: Heat Flux DensityUnit: W/m²

Note: Value should be greater than 0.

Formulas to find Convection Heat Transfer

Emissivity

Emissivity is the ability of an object to emit infrared energy. Emissivity can have a value from 0 (shiny mirror) to 1.0 (blackbody). Most organic or oxidized surfaces have emissivity close to 0.95.

Symbol: ε

Measurement: NAUnit: Unitless

Note: Value should be between 0 to 1.

Formulas to find Emissivity

Temperature of wall in Kelvin

Temperature of wall in Kelvin is the wall temperature of the body under a flow.

Symbol: T_w

Measurement: TemperatureUnit: K

Note: Value should be greater than 0.

Formulas to find Temperature of wall in Kelvin

Radiative Heat Transfer

Radiative Heat Transfer is the Heat transfer through radiation takes place in form of electromagnetic waves mainly in the infrared region.

Symbol: q_rad

Measurement: Heat Flux DensityUnit: W/m²

Note: Value should be greater than 0.

Formulas to find Radiative Heat Transfer

Stefan-Boltzmann Constant

Stefan-Boltzmann Constant relates the total energy radiated by a perfect black body to its temperature and is fundamental in understanding blackbody radiation and astrophysics.

Symbol: [Stefan-BoltZ]

Value: 5.670367E-8

Other formulas in Modern Design Oriented Code category

Go Radiative Heat Transfer to Surface Stemming from Thermal Radiation

q rad = [Stefan-BoltZ] \cdot ε \cdot {Tw}^{4} - h cn

How to Evaluate Convective Heat Transfer to Surface?

Convective Heat Transfer to Surface evaluator uses Convection Heat Transfer = [Stefan-BoltZ]*Emissivity*Temperature of wall in Kelvin^4-Radiative Heat Transfer to evaluate the Convection Heat Transfer, The Convective heat transfer to surface formula is defined as the function of emissivity, Stephan Boltzmann constant, and the fourth power of wall temperature. Convection Heat Transfer is denoted by q_conv symbol.

How to evaluate Convective Heat Transfer to Surface using this online evaluator? To use this online evaluator for Convective Heat Transfer to Surface, enter Emissivity (ε), Temperature of wall in Kelvin (T_w) & Radiative Heat Transfer (q_rad) and hit the calculate button.

FAQs on Convective Heat Transfer to Surface

What is the formula to find Convective Heat Transfer to Surface?

The formula of Convective Heat Transfer to Surface is expressed as Convection Heat Transfer = [Stefan-BoltZ]*Emissivity*Temperature of wall in Kelvin^4-Radiative Heat Transfer. Here is an example- 777.9992 = [Stefan-BoltZ]*0.95*357^4-97.

How to calculate Convective Heat Transfer to Surface?

With Emissivity (ε), Temperature of wall in Kelvin (T_w) & Radiative Heat Transfer (q_rad) we can find Convective Heat Transfer to Surface using the formula - Convection Heat Transfer = [Stefan-BoltZ]*Emissivity*Temperature of wall in Kelvin^4-Radiative Heat Transfer. This formula also uses Stefan-Boltzmann Constant .

Can the Convective Heat Transfer to Surface be negative?

No, the Convective Heat Transfer to Surface, measured in Heat Flux Density cannot be negative.

Which unit is used to measure Convective Heat Transfer to Surface?

Convective Heat Transfer to Surface 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 Convective Heat Transfer to Surface can be measured.

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Convective Heat Transfer to Surface Formula

Convective Heat Transfer to Surface Example

Convective Heat Transfer to Surface Solution

Convective Heat Transfer to Surface Formula Elements

Other formulas in Modern Design Oriented Code category

How to Evaluate Convective Heat Transfer to Surface?

FAQs on Convective Heat Transfer to Surface

Variable Name