Surface convection resistance Calculator

✖Internal Conduction Resistance is the resistance offered by the body for conduction of heat.ⓘ Internal Conduction Resistance [R_i]			+10% -10%
✖Biot Number is a dimensionless quantity having the ratio of internal conduction resistance to the surface convection resistance.ⓘ Biot Number [Bi]			+10% -10%

✖Surface Convection Resistance is the resistance offered by the surface of the material for heat transfer by convection.ⓘ Surface convection resistance [R_sc]

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Formula

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Surface convection resistance

Formula

R sc = \frac{R i}{Bi}

Example

5 K/W = \frac{4 K/W}{0.8}

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Surface convection resistance Solution

STEP 0: Pre-Calculation Summary

Formula Used

Surface Convection Resistance = Internal Conduction Resistance/Biot Number
R_sc = R_i/Bi
This formula uses 3 Variables

Variables Used

Surface Convection Resistance - (Measured in Kelvin per Watt) - Surface Convection Resistance is the resistance offered by the surface of the material for heat transfer by convection.
Internal Conduction Resistance - (Measured in Kelvin per Watt) - Internal Conduction Resistance is the resistance offered by the body for conduction of heat.
Biot Number - Biot Number is a dimensionless quantity having the ratio of internal conduction resistance to the surface convection resistance.

STEP 1: Convert Input(s) to Base Unit

Internal Conduction Resistance: 4 Kelvin per Watt --> 4 Kelvin per Watt No Conversion Required
Biot Number: 0.8 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R_sc = R_i/Bi --> 4/0.8

Evaluating ... ...

R_sc = 5

STEP 3: Convert Result to Output's Unit

5 Kelvin per Watt --> No Conversion Required

FINAL ANSWER

5 Kelvin per Watt <-- Surface Convection Resistance

(Calculation completed in 00.020 seconds)

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Home » Physics » Heat and Mass Transfer » Convection » Dimensionless groups » Mechanical » Eckert and Biot Number » Surface convection resistance

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Created by Nishan Poojary

Shri Madhwa Vadiraja Institute of Technology and Management (SMVITM), Udupi

Nishan Poojary has created this Calculator and 500+ more calculators!

Verified by Rajat Vishwakarma

University Institute of Technology RGPV (UIT - RGPV), Bhopal

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< Eckert and Biot Number Calculators

Eckert Number

Go Eckert Number = Flow Velocity^2/(Specific Heat Capacity*Temperature Difference)

Internal conduction resistance given biot number

Go Internal Conduction Resistance = Biot Number*Surface Convection Resistance

Surface convection resistance

Go Surface Convection Resistance = Internal Conduction Resistance/Biot Number

Surface convection resistance Formula

Surface Convection Resistance = Internal Conduction Resistance/Biot Number
R_sc = R_i/Bi

What is convection

Convection is the process of heat transfer by the bulk movement of molecules within fluids such as gases and liquids. The initial heat transfer between the object and the fluid takes place through conduction, but the bulk heat transfer happens due to the motion of the fluid.

Convection is the process of heat transfer in fluids by the actual motion of matter.
It happens in liquids and gases.
It may be natural or forced.
It involves a bulk transfer of portions of the fluid.

How to Calculate Surface convection resistance?

Surface convection resistance calculator uses Surface Convection Resistance = Internal Conduction Resistance/Biot Number to calculate the Surface Convection Resistance, The Surface convection resistance formula is defined as the resistance offered by the surface of the material for the heat transfer by convection between fluid and the solid surface. Surface Convection Resistance is denoted by R_sc symbol.

How to calculate Surface convection resistance using this online calculator? To use this online calculator for Surface convection resistance, enter Internal Conduction Resistance (R_i) & Biot Number (Bi) and hit the calculate button. Here is how the Surface convection resistance calculation can be explained with given input values -> 0.625 = 4/0.8.

FAQ

What is Surface convection resistance?

The Surface convection resistance formula is defined as the resistance offered by the surface of the material for the heat transfer by convection between fluid and the solid surface and is represented as R_sc = R_i/Bi or Surface Convection Resistance = Internal Conduction Resistance/Biot Number. Internal Conduction Resistance is the resistance offered by the body for conduction of heat & Biot Number is a dimensionless quantity having the ratio of internal conduction resistance to the surface convection resistance.

How to calculate Surface convection resistance?

The Surface convection resistance formula is defined as the resistance offered by the surface of the material for the heat transfer by convection between fluid and the solid surface is calculated using Surface Convection Resistance = Internal Conduction Resistance/Biot Number. To calculate Surface convection resistance, you need Internal Conduction Resistance (R_i) & Biot Number (Bi). With our tool, you need to enter the respective value for Internal Conduction Resistance & Biot Number 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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