Thermal Resistance in Conduction Calculator

✖The thickness of the body or sample is the distance measured on a path parallel to the heat flow.ⓘ Thickness [L]			+10% -10%
✖Thermal Conductivity of Fin is rate of heat passes through Fin, expressed as amount of heat flows per unit time through a unit area with a temperature gradient of one degree per unit distance.ⓘ Thermal Conductivity of Fin [k_o]			+10% -10%
✖Cross Sectional Area can be referred as the area perpendicular to the path of heat flow.ⓘ Cross Sectional Area [A]			+10% -10%

✖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 in Conduction [R_th]

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Formula

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Thermal Resistance in Conduction

Formula

`"R"_{"th"} = ("L")/("k"_{"o"}*"A")`

Example

`"0.23959K/W"=("100m")/("10.18W/(m*K)"*"41m²")`

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Thermal Resistance in Conduction Solution

STEP 0: Pre-Calculation Summary

Formula Used

Thermal Resistance = (Thickness)/(Thermal Conductivity of Fin*Cross Sectional Area)
R_th = (L)/(k_o*A)
This formula uses 4 Variables

Variables Used

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.
Thickness - (Measured in Meter) - The thickness of the body or sample is the distance measured on a path parallel to the heat flow.
Thermal Conductivity of Fin - (Measured in Watt per Meter per K) - Thermal Conductivity of Fin is rate of heat passes through Fin, expressed as amount of heat flows per unit time through a unit area with a temperature gradient of one degree per unit distance.
Cross Sectional Area - (Measured in Square Meter) - Cross Sectional Area can be referred as the area perpendicular to the path of heat flow.

STEP 1: Convert Input(s) to Base Unit

Thickness: 100 Meter --> 100 Meter No Conversion Required
Thermal Conductivity of Fin: 10.18 Watt per Meter per K --> 10.18 Watt per Meter per K No Conversion Required
Cross Sectional Area: 41 Square Meter --> 41 Square Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R_th = (L)/(k_o*A) --> (100)/(10.18*41)

Evaluating ... ...

R_th = 0.239589822224352

STEP 3: Convert Result to Output's Unit

0.239589822224352 Kelvin per Watt --> No Conversion Required

FINAL ANSWER

0.239589822224352 ≈ 0.23959 Kelvin per Watt <-- Thermal Resistance

(Calculation completed in 00.008 seconds)

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Home » Engineering » Mechanical » Thermodynamics » Heat Transfer » Conduction, Convection and Radiation » Thermal Resistance in Conduction

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Created by Ravi Khiyani

Shri Govindram Seksaria Institute of Technology and Science (SGSITS), Indore

Ravi Khiyani has created this Calculator and 200+ more calculators!

Verified by Akshay Talbar

Vishwakarma University (VU), Pune

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< 13 Conduction, Convection and Radiation Calculators

Heat Transfer by Conduction at Base

Go Rate of Conductive Heat Transfer = (Thermal Conductivity*Cross Sectional Area of Fin*Perimeter of the Fin*Convective Heat Transfer Coefficient)^0.5*(Base Temperature-Ambient Temperature)

Heat Exchange by Radiation due to Geometric Arrangement

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

Black Bodies Heat Exchange by Radiation

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

Heat Transfer According to Fourier's Law

Go Heat Flow Through a Body = -(Thermal Conductivity of Material*Surface Area of Heat Flow*Temperature Difference/Thickness)

One Dimensional Heat Flux

Go Heat Flux = -Thermal Conductivity of Fin/Wall Thickness*(Temperature of Wall 2-Temperature of Wall 1)

Newton's Law of Cooling

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

Non Ideal Body Surface Emittance

Go Real Surface Radiant Surface Emittance = Emissivity*[Stefan-BoltZ]*Surface Temperature^(4)

Thermal Resistance in Conduction

Go Thermal Resistance = (Thickness)/(Thermal Conductivity of Fin*Cross Sectional Area)

Convective Processes Heat Transfer Coefficient

Go Heat Flux = Heat Transfer Coefficient*(Surface Temperature-Recovery temperature)

Thermal Conductivity given Critical Thickness of Insulation for Cylinder

Go Thermal Conductivity of Fin = Critical Thickness of Insulation*Heat Transfer Coefficient at Outer Surface

Critical Thickness of Insulation for Cylinder

Go Critical Thickness of Insulation = Thermal Conductivity of Fin/Heat Transfer Coefficient

Thermal Resistance in Convection Heat Transfer

Go Thermal Resistance = 1/(Exposed Surface Area*Co-efficient of Convective Heat Transfer)

Heat Transfer

Go Heat Flow Rate = Thermal Potential Difference/Thermal Resistance

Thermal Resistance in Conduction Formula

Thermal Resistance = (Thickness)/(Thermal Conductivity of Fin*Cross Sectional Area)
R_th = (L)/(k_o*A)

How to Calculate Thermal Resistance in Conduction?

Thermal Resistance in Conduction calculator uses Thermal Resistance = (Thickness)/(Thermal Conductivity of Fin*Cross Sectional Area) to calculate the Thermal Resistance, The thermal resistance in conduction is a heat property and a measurement of a temperature difference by which an object or material resists a heat flow. Thermal Resistance is denoted by R_th symbol.

How to calculate Thermal Resistance in Conduction using this online calculator? To use this online calculator for Thermal Resistance in Conduction, enter Thickness (L), Thermal Conductivity of Fin (k_o) & Cross Sectional Area (A) and hit the calculate button. Here is how the Thermal Resistance in Conduction calculation can be explained with given input values -> 0.23959 = (100)/(10.18*41).

FAQ

What is Thermal Resistance in Conduction?

The thermal resistance in conduction is a heat property and a measurement of a temperature difference by which an object or material resists a heat flow and is represented as R_th = (L)/(k_o*A) or Thermal Resistance = (Thickness)/(Thermal Conductivity of Fin*Cross Sectional Area). The thickness of the body or sample is the distance measured on a path parallel to the heat flow, Thermal Conductivity of Fin is rate of heat passes through Fin, expressed as amount of heat flows per unit time through a unit area with a temperature gradient of one degree per unit distance & Cross Sectional Area can be referred as the area perpendicular to the path of heat flow.

How to calculate Thermal Resistance in Conduction?

The thermal resistance in conduction is a heat property and a measurement of a temperature difference by which an object or material resists a heat flow is calculated using Thermal Resistance = (Thickness)/(Thermal Conductivity of Fin*Cross Sectional Area). To calculate Thermal Resistance in Conduction, you need Thickness (L), Thermal Conductivity of Fin (k_o) & Cross Sectional Area (A). With our tool, you need to enter the respective value for Thickness, Thermal Conductivity of Fin & Cross Sectional 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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