Radiation Heat Transfer Coefficient Solution

STEP 0: Pre-Calculation Summary
Formula Used
Radiation Heat Transfer Coefficient = (([Stefan-BoltZ]*Emissivity*(((Plate Surface Temperature)^4)-((Saturated Temperature)^4)))/(Plate Surface Temperature-Saturated Temperature))
hr = (([Stefan-BoltZ]*ε*(((Tw)^4)-((TSat)^4)))/(Tw-TSat))
This formula uses 1 Constants, 4 Variables
Constants Used
[Stefan-BoltZ] - Stefan-Boltzmann Constant Value Taken As 5.670367E-8 Kilogram Second^-3 Kelvin^-4
Variables Used
Radiation Heat Transfer Coefficient - (Measured in Watt per Meter² per K) - Radiation Heat Transfer Coefficient is the heat transferred per unit area per kelvin. Thus area is included in the equation as it represents the area over which the transfer of heat takes place.
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.
Plate Surface Temperature - (Measured in Kelvin) - Plate Surface Temperature is the temperature at the surface of the plate.
Saturated Temperature - (Measured in Kelvin) - Saturated temperature is the temperature at which a given liquid and its vapour or a given solid and its vapour can co-exist in equilibrium, at a given pressure.
STEP 1: Convert Input(s) to Base Unit
Emissivity: 0.95 --> No Conversion Required
Plate Surface Temperature: 82 Kelvin --> 82 Kelvin No Conversion Required
Saturated Temperature: 373 Kelvin --> 373 Kelvin No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
hr = (([Stefan-BoltZ]*ε*(((Tw)^4)-((TSat)^4)))/(Tw-TSat)) --> (([Stefan-BoltZ]*0.95*(((82)^4)-((373)^4)))/(82-373))
Evaluating ... ...
hr = 3.57488056447545
STEP 3: Convert Result to Output's Unit
3.57488056447545 Watt per Meter² per K --> No Conversion Required
FINAL ANSWER
3.57488056447545 Watt per Meter² per K <-- Radiation Heat Transfer Coefficient
(Calculation completed in 00.016 seconds)

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University School of Chemical Technology-USCT (GGSIPU), New Delhi
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Radiation Heat Transfer Coefficient Formula

Radiation Heat Transfer Coefficient = (([Stefan-BoltZ]*Emissivity*(((Plate Surface Temperature)^4)-((Saturated Temperature)^4)))/(Plate Surface Temperature-Saturated Temperature))
hr = (([Stefan-BoltZ]*ε*(((Tw)^4)-((TSat)^4)))/(Tw-TSat))

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 Radiation Heat Transfer Coefficient?

Radiation Heat Transfer Coefficient calculator uses Radiation Heat Transfer Coefficient = (([Stefan-BoltZ]*Emissivity*(((Plate Surface Temperature)^4)-((Saturated Temperature)^4)))/(Plate Surface Temperature-Saturated Temperature)) to calculate the Radiation Heat Transfer Coefficient, The Radiation Heat Transfer Coefficient formula is defined as the function of stefan boltzmann constant, emissivity, plate surface temperature and Saturated temperature. Radiation Heat Transfer Coefficient is denoted by hr symbol.

How to calculate Radiation Heat Transfer Coefficient using this online calculator? To use this online calculator for Radiation Heat Transfer Coefficient, enter Emissivity (ε), Plate Surface Temperature (Tw) & Saturated Temperature (TSat) and hit the calculate button. Here is how the Radiation Heat Transfer Coefficient calculation can be explained with given input values -> 3.574881 = (([Stefan-BoltZ]*0.95*(((82)^4)-((373)^4)))/(82-373)).

FAQ

What is Radiation Heat Transfer Coefficient?
The Radiation Heat Transfer Coefficient formula is defined as the function of stefan boltzmann constant, emissivity, plate surface temperature and Saturated temperature and is represented as hr = (([Stefan-BoltZ]*ε*(((Tw)^4)-((TSat)^4)))/(Tw-TSat)) or Radiation Heat Transfer Coefficient = (([Stefan-BoltZ]*Emissivity*(((Plate Surface Temperature)^4)-((Saturated Temperature)^4)))/(Plate Surface Temperature-Saturated Temperature)). 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, Plate Surface Temperature is the temperature at the surface of the plate & Saturated temperature is the temperature at which a given liquid and its vapour or a given solid and its vapour can co-exist in equilibrium, at a given pressure.
How to calculate Radiation Heat Transfer Coefficient?
The Radiation Heat Transfer Coefficient formula is defined as the function of stefan boltzmann constant, emissivity, plate surface temperature and Saturated temperature is calculated using Radiation Heat Transfer Coefficient = (([Stefan-BoltZ]*Emissivity*(((Plate Surface Temperature)^4)-((Saturated Temperature)^4)))/(Plate Surface Temperature-Saturated Temperature)). To calculate Radiation Heat Transfer Coefficient, you need Emissivity (ε), Plate Surface Temperature (Tw) & Saturated Temperature (TSat). With our tool, you need to enter the respective value for Emissivity, Plate Surface Temperature & Saturated Temperature 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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