Outside Heat Transfer Coefficient given Thermal Resistance Calculator

✖Thermal resistance is a heat property and a measurement of a temperature difference by which an object or material resists a heat flow.ⓘ Thermal Resistance [R_th]			+10% -10%
✖Outside Area is the space outside the shape. It's a measure of 2-D space, and the units for area are squared ("length squared").ⓘ Outside Area [A_outside]			+10% -10%

✖External Convection Heat Transfer Coefficient is the proportionality constant between the heat flux and the thermodynamic driving force for the flow of heat in case of convective heat transfer.ⓘ Outside Heat Transfer Coefficient given Thermal Resistance [h_outside]

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Outside Heat Transfer Coefficient given Thermal Resistance

Formula

`"h"_{"outside"} = 1/("R"_{"th"}*"A"_{"outside"})`

Example

`"10.12146W/m²*K"=1/("5.2K/W"*"0.019m²")`

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Outside Heat Transfer Coefficient given Thermal Resistance Solution

STEP 0: Pre-Calculation Summary

Formula Used

External Convection Heat Transfer Coefficient = 1/(Thermal Resistance*Outside Area)
h_outside = 1/(R_th*A_outside)
This formula uses 3 Variables

Variables Used

External Convection Heat Transfer Coefficient - (Measured in Watt per Square Meter per Kelvin) - External Convection Heat Transfer Coefficient is the proportionality constant between the heat flux and the thermodynamic driving force for the flow of heat in case of convective heat transfer.
Thermal Resistance - (Measured in Kelvin per Watt) - Thermal resistance is a heat property and a measurement of a temperature difference by which an object or material resists a heat flow.
Outside Area - (Measured in Square Meter) - Outside Area is the space outside the shape. It's a measure of 2-D space, and the units for area are squared ("length squared").

STEP 1: Convert Input(s) to Base Unit

Thermal Resistance: 5.2 Kelvin per Watt --> 5.2 Kelvin per Watt No Conversion Required
Outside Area: 0.019 Square Meter --> 0.019 Square Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

h_outside = 1/(R_th*A_outside) --> 1/(5.2*0.019)

Evaluating ... ...

h_outside = 10.1214574898785

STEP 3: Convert Result to Output's Unit

10.1214574898785 Watt per Square Meter per Kelvin --> No Conversion Required

FINAL ANSWER

10.1214574898785 ≈ 10.12146 Watt per Square Meter per Kelvin <-- External Convection Heat Transfer Coefficient

(Calculation completed in 00.004 seconds)

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Created by Ayush gupta

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

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University of Hawaiʻi at Mānoa (UH Manoa), Hawaii, USA

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< 8 Thermal Resistance Calculators

Thermal Resistance for Conduction at Tube Wall

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

Outside Heat Transfer Coefficient given Thermal Resistance

Go External Convection Heat Transfer Coefficient = 1/(Thermal Resistance*Outside Area)

Thermal Resistance for Convection at Outer Surface

Go Thermal Resistance = 1/(External Convection Heat Transfer Coefficient*Outside Area)

Outside Area given Outer Thermal Resistance

Go Outside Area = 1/(External Convection Heat Transfer Coefficient*Thermal Resistance)

Inner Heat Transfer Coefficient given Inner Thermal Resistance

Go Inside Convection Heat Transfer Coefficient = 1/(Inside Area*Thermal Resistance)

Inside Area given Thermal Resistance for Inner Surface

Go Inside Area = 1/(Inside Convection Heat Transfer Coefficient*Thermal Resistance)

Thermal Resistance for Convection at Inner Surface

Go Thermal Resistance = 1/(Inside Area*Inside Convection Heat Transfer Coefficient)

Total Thermal Resistance

Go Total Thermal Resistance = 1/(Overall Heat Transfer Coefficient*Area)

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Heat Dissipation from Fin Losing Heat at End Tip

Go Fin Heat Transfer Rate = (sqrt(Perimeter of Fin*Heat Transfer Coefficient*Thermal Conductivity of Fin*Cross Sectional Area))*(Surface Temperature-Surrounding Temperature)*((tanh((sqrt((Perimeter of Fin*Heat Transfer Coefficient)/(Thermal Conductivity of Fin*Cross Sectional Area)))*Length of Fin)+(Heat Transfer Coefficient)/(Thermal Conductivity of Fin*(sqrt(Perimeter of Fin*Heat Transfer Coefficient/Thermal Conductivity of Fin*Cross Sectional Area)))))/(1+tanh((sqrt((Perimeter of Fin*Heat Transfer Coefficient)/(Thermal Conductivity of Fin*Cross Sectional Area)))*Length of Fin*(Heat Transfer Coefficient)/(Thermal Conductivity of Fin*(sqrt((Perimeter of Fin*Heat Transfer Coefficient)/(Thermal Conductivity of Fin*Cross Sectional Area))))))

Heat Dissipation from Fin Insulated at End Tip

Go Fin Heat Transfer Rate = (sqrt((Perimeter of Fin*Heat Transfer Coefficient*Thermal Conductivity of Fin*Cross Sectional Area)))*(Surface Temperature-Surrounding Temperature)*tanh((sqrt((Perimeter of Fin*Heat Transfer Coefficient)/(Thermal Conductivity of Fin*Cross Sectional Area)))*Length of Fin)

Heat Dissipation from Infinitely Long Fin

Go Fin Heat Transfer Rate = ((Perimeter of Fin*Heat Transfer Coefficient*Thermal Conductivity of Fin*Cross Sectional Area)^0.5)*(Surface Temperature-Surrounding Temperature)

Thermal Resistance for Conduction at Tube Wall

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

Heat Transfer in Fins given Fin Efficiency

Go Fin Heat Transfer Rate = Overall Heat Transfer Coefficient*Area*Fin Efficiency*Overall Difference in Temperature

Newton's Law of Cooling

Go Heat Flux = Heat Transfer Coefficient*(Surface Temperature-Temperature of Characteristic Fluid)

Biot Number using Characteristic Length

Go Biot Number = (Heat Transfer Coefficient*Characteristic Length)/(Thermal Conductivity of Fin)

Critical Radius of Insulation of Hollow Sphere

Go Critical Radius of Insulation = 2*Thermal Conductivity of Insulation/External Convection Heat Transfer Coefficient

Critical Radius of Insulation of Cylinder

Go Critical Radius of Insulation = Thermal Conductivity of Insulation/External Convection Heat Transfer Coefficient

Correction Length for Cylindrical Fin with Non-Adiabatic Tip

Go Correction Length for Cylindrical Fin = Length of Fin+(Diameter of Cylindrical Fin/4)

Outside Heat Transfer Coefficient given Thermal Resistance

Go External Convection Heat Transfer Coefficient = 1/(Thermal Resistance*Outside Area)

Thermal Resistance for Convection at Outer Surface

Go Thermal Resistance = 1/(External Convection Heat Transfer Coefficient*Outside Area)

Outside Area given Outer Thermal Resistance

Go Outside Area = 1/(External Convection Heat Transfer Coefficient*Thermal Resistance)

Inner Heat Transfer Coefficient given Inner Thermal Resistance

Go Inside Convection Heat Transfer Coefficient = 1/(Inside Area*Thermal Resistance)

Inside Area given Thermal Resistance for Inner Surface

Go Inside Area = 1/(Inside Convection Heat Transfer Coefficient*Thermal Resistance)

Thermal Resistance for Convection at Inner Surface

Go Thermal Resistance = 1/(Inside Area*Inside Convection Heat Transfer Coefficient)

Correction Length for Thin Rectangular Fin with Non-Adiabatic Tip

Go Correction Length for Thin Rectangular Fin = Length of Fin+(Thickness of Fin/2)

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Go Volumetric Heat Generation = (Electric Current Density^2)*Resistivity

Total Thermal Resistance

Go Total Thermal Resistance = 1/(Overall Heat Transfer Coefficient*Area)

Correction Length for Square Fin with Non-Adiabatic Tip

Go Correction Length for Sqaure Fin = Length of Fin+(Width of Fin/4)

Outside Heat Transfer Coefficient given Thermal Resistance Formula

External Convection Heat Transfer Coefficient = 1/(Thermal Resistance*Outside Area)
h_outside = 1/(R_th*A_outside)

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How to Calculate Outside Heat Transfer Coefficient given Thermal Resistance?

Outside Heat Transfer Coefficient given Thermal Resistance calculator uses External Convection Heat Transfer Coefficient = 1/(Thermal Resistance*Outside Area) to calculate the External Convection Heat Transfer Coefficient, The Outside Heat Transfer Coefficient given Thermal Resistance formula is defined as the reciprocal of product of thermal resistance and outside area. External Convection Heat Transfer Coefficient is denoted by h_outside symbol.

How to calculate Outside Heat Transfer Coefficient given Thermal Resistance using this online calculator? To use this online calculator for Outside Heat Transfer Coefficient given Thermal Resistance, enter Thermal Resistance (R_th) & Outside Area (A_outside) and hit the calculate button. Here is how the Outside Heat Transfer Coefficient given Thermal Resistance calculation can be explained with given input values -> 10.12146 = 1/(5.2*0.019).

FAQ

What is Outside Heat Transfer Coefficient given Thermal Resistance?

The Outside Heat Transfer Coefficient given Thermal Resistance formula is defined as the reciprocal of product of thermal resistance and outside area and is represented as h_outside = 1/(R_th*A_outside) or External Convection Heat Transfer Coefficient = 1/(Thermal Resistance*Outside Area). Thermal resistance is a heat property and a measurement of a temperature difference by which an object or material resists a heat flow & Outside Area is the space outside the shape. It's a measure of 2-D space, and the units for area are squared ("length squared").

How to calculate Outside Heat Transfer Coefficient given Thermal Resistance?

The Outside Heat Transfer Coefficient given Thermal Resistance formula is defined as the reciprocal of product of thermal resistance and outside area is calculated using External Convection Heat Transfer Coefficient = 1/(Thermal Resistance*Outside Area). To calculate Outside Heat Transfer Coefficient given Thermal Resistance, you need Thermal Resistance (R_th) & Outside Area (A_outside). With our tool, you need to enter the respective value for Thermal Resistance & Outside Area 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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