Thermal Resistance for Convection at Inner Surface Calculator

✖Inside Area is defined as the space inside the shape. It's a measure of 2-D space, and the units for area are squared ("length squared").ⓘ Inside Area [A_inside]			+10% -10%
✖Inside Convection Heat Transfer Coefficient is the coefficient of convection heat transfer at the inside surface of the body or object or wall, etc.ⓘ Inside Convection Heat Transfer Coefficient [h_inside]			+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 for Convection at Inner Surface [R_th]

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Thermal Resistance for Convection at Inner Surface

Formula

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

Example

`"5.291005K/W"=1/("0.14m²"*"1.35W/m²*K")`

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Thermal Resistance for Convection at Inner Surface Solution

STEP 0: Pre-Calculation Summary

Formula Used

Thermal Resistance = 1/(Inside Area*Inside Convection Heat Transfer Coefficient)
R_th = 1/(A_inside*h_inside)
This formula uses 3 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.
Inside Area - (Measured in Square Meter) - Inside Area is defined as the space inside the shape. It's a measure of 2-D space, and the units for area are squared ("length squared").
Inside Convection Heat Transfer Coefficient - (Measured in Watt per Square Meter per Kelvin) - Inside Convection Heat Transfer Coefficient is the coefficient of convection heat transfer at the inside surface of the body or object or wall, etc.

STEP 1: Convert Input(s) to Base Unit

Inside Area: 0.14 Square Meter --> 0.14 Square Meter No Conversion Required
Inside Convection Heat Transfer Coefficient: 1.35 Watt per Square Meter per Kelvin --> 1.35 Watt per Square Meter per Kelvin No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R_th = 1/(A_inside*h_inside) --> 1/(0.14*1.35)

Evaluating ... ...

R_th = 5.29100529100529

STEP 3: Convert Result to Output's Unit

5.29100529100529 Kelvin per Watt --> No Conversion Required

FINAL ANSWER

5.29100529100529 ≈ 5.291005 Kelvin per Watt <-- Thermal Resistance

(Calculation completed in 00.004 seconds)

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Created by Ayush gupta

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

Ayush gupta has created this Calculator and 300+ more calculators!

Verified by Soupayan banerjee

National University of Judicial Science (NUJS), Kolkata

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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)

< 20 Heat Transfer from Extended Surfaces (Fins), Critical Thickness of Insulation and Thermal Resistance Calculators

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)

Volumetric Heat Generation in Current Carrying Electrical Conductor

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)

Thermal Resistance for Convection at Inner Surface Formula

Thermal Resistance = 1/(Inside Area*Inside Convection Heat Transfer Coefficient)
R_th = 1/(A_inside*h_inside)

What is Heat Exchanger?

A Heat Exchanger is a device that facilitates the process of heat exchange between two fluids that are at different temperatures.

What are the Different Types of Heat Exchanger?

Mainly Heat Exchanger are divided in 4 categories:
Hairpin Type Heat Exchanger,
Double Pipe Heat Exchanger,
Shell and Tube Heat Exchanger &
Plate Type Heat Exchanger.

How to Calculate Thermal Resistance for Convection at Inner Surface?

Thermal Resistance for Convection at Inner Surface calculator uses Thermal Resistance = 1/(Inside Area*Inside Convection Heat Transfer Coefficient) to calculate the Thermal Resistance, The Thermal Resistance for Convection at Inner Surface formula is defined as the reciprocal of multiplication of Inside area and inside Heat Transfer coefficient. It tells how much resistance is present on the Inner surface. Thermal Resistance is denoted by R_th symbol.

How to calculate Thermal Resistance for Convection at Inner Surface using this online calculator? To use this online calculator for Thermal Resistance for Convection at Inner Surface, enter Inside Area (A_inside) & Inside Convection Heat Transfer Coefficient (h_inside) and hit the calculate button. Here is how the Thermal Resistance for Convection at Inner Surface calculation can be explained with given input values -> 5.291005 = 1/(0.14*1.35).

FAQ

What is Thermal Resistance for Convection at Inner Surface?

The Thermal Resistance for Convection at Inner Surface formula is defined as the reciprocal of multiplication of Inside area and inside Heat Transfer coefficient. It tells how much resistance is present on the Inner surface and is represented as R_th = 1/(A_inside*h_inside) or Thermal Resistance = 1/(Inside Area*Inside Convection Heat Transfer Coefficient). Inside Area is defined as the space inside the shape. It's a measure of 2-D space, and the units for area are squared ("length squared") & Inside Convection Heat Transfer Coefficient is the coefficient of convection heat transfer at the inside surface of the body or object or wall, etc.

How to calculate Thermal Resistance for Convection at Inner Surface?

The Thermal Resistance for Convection at Inner Surface formula is defined as the reciprocal of multiplication of Inside area and inside Heat Transfer coefficient. It tells how much resistance is present on the Inner surface is calculated using Thermal Resistance = 1/(Inside Area*Inside Convection Heat Transfer Coefficient). To calculate Thermal Resistance for Convection at Inner Surface, you need Inside Area (A_inside) & Inside Convection Heat Transfer Coefficient (h_inside). With our tool, you need to enter the respective value for Inside Area & Inside Convection Heat Transfer Coefficient and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Thermal Resistance?

In this formula, Thermal Resistance uses Inside Area & Inside Convection Heat Transfer Coefficient. We can use 4 other way(s) to calculate the same, which is/are as follows -

Thermal Resistance = 1/(External Convection Heat Transfer Coefficient*Outside Area)
Thermal Resistance = (ln(Outer Radius of Cylinder/Inner Radius of Cylinder))/(2*pi*Thermal Conductivity*Length of Cylinder)
Thermal Resistance = (ln(Outer Radius of Cylinder/Inner Radius of Cylinder))/(2*pi*Thermal Conductivity*Length of Cylinder)
Thermal Resistance = 1/(External Convection Heat Transfer Coefficient*Outside Area)

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