Convection Resistance for Cylindrical Layer Solution

STEP 0: Pre-Calculation Summary
Formula Used
Thermal Resistance = 1/(Convection heat transfer*2*pi*Cylinder Radius*Length of Cylinder)
Rth = 1/(h*2*pi*R*lcyl)
This formula uses 1 Constants, 4 Variables
Constants Used
pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288
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.
Convection heat transfer - (Measured in Watt per Square Meter per Kelvin) - Convection Heat Transfer Coefficient is the rate of heat transfer between a solid surface and a fluid per unit surface area per unit temperature.
Cylinder Radius - (Measured in Meter) - The Cylinder Radius is the radius of its base.
Length of Cylinder - (Measured in Meter) - Length of Cylinder is the vertical height of the Cylinder.
STEP 1: Convert Input(s) to Base Unit
Convection heat transfer: 2.2 Watt per Square Meter per Kelvin --> 2.2 Watt per Square Meter per Kelvin No Conversion Required
Cylinder Radius: 0.16 Meter --> 0.16 Meter No Conversion Required
Length of Cylinder: 0.4 Meter --> 0.4 Meter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Rth = 1/(h*2*pi*R*lcyl) --> 1/(2.2*2*pi*0.16*0.4)
Evaluating ... ...
Rth = 1.13036181173221
STEP 3: Convert Result to Output's Unit
1.13036181173221 Kelvin per Watt --> No Conversion Required
FINAL ANSWER
1.13036181173221 1.130362 Kelvin per Watt <-- Thermal Resistance
(Calculation completed in 00.004 seconds)

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14 Conduction in Cylinder Calculators

Heat Flow Rate through Cylindrical Composite Wall of 3 Layers
Go Heat Flow Rate = (Inner Surface Temperature-Outer Surface Temperature)/((ln(Radius 2/Radius 1))/(2*pi*Thermal Conductivity 1*Length of Cylinder)+(ln(Radius 3/Radius 2))/(2*pi*Thermal Conductivity 2*Length of Cylinder)+(ln(Radius 4/Radius 3))/(2*pi*Thermal Conductivity 3*Length of Cylinder))
Total Thermal Resistance of 3 Cylindrical Resistances Connected in Series
Go Thermal Resistance = (ln(Radius 2/Radius 1))/(2*pi*Thermal Conductivity 1*Length of Cylinder)+(ln(Radius 3/Radius 2))/(2*pi*Thermal Conductivity 2*Length of Cylinder)+(ln(Radius 4/Radius 3))/(2*pi*Thermal Conductivity 3*Length of Cylinder)
Total Thermal Resistance of Cylindrical Wall with Convection on Both Sides
Go Thermal Resistance = 1/(2*pi*Radius 1*Length of Cylinder*Inside Convection Heat Transfer Coefficient)+(ln(Radius 2/Radius 1))/(2*pi*Thermal Conductivity*Length of Cylinder)+1/(2*pi*Radius 2*Length of Cylinder*External Convection Heat Transfer Coefficient)
Heat Flow Rate through Cylindrical Composite Wall of 2 Layers
Go Heat Flow Rate = (Inner Surface Temperature-Outer Surface Temperature)/((ln(Radius 2/Radius 1))/(2*pi*Thermal Conductivity 1*Length of Cylinder)+(ln(Radius 3/Radius 2))/(2*pi*Thermal Conductivity 2*Length of Cylinder))
Outer Surface Temperature of Cylindrical Composite Wall of 2 Layers
Go Outer Surface Temperature = Inner Surface Temperature-Heat Flow Rate*((ln(Radius 2/Radius 1))/(2*pi*Thermal Conductivity 1*Length of Cylinder)+(ln(Radius 3/Radius 2))/(2*pi*Thermal Conductivity 2*Length of Cylinder))
Total Thermal Resistance of 2 Cylindrical Resistances Connected in Series
Go Thermal Resistance = (ln(Radius 2/Radius 1))/(2*pi*Thermal Conductivity 1*Length of Cylinder)+(ln(Radius 3/Radius 2))/(2*pi*Thermal Conductivity 2*Length of Cylinder)
Heat Flow Rate through Cylindrical Wall
Go Heat Flow Rate = (Inner Surface Temperature-Outer Surface Temperature)/((ln(Radius 2/Radius 1))/(2*pi*Thermal Conductivity*Length of Cylinder))
Thermal Conductivity of Cylindrical Wall given Temperature Difference
Go Thermal Conductivity = (Heat Flow Rate*ln(Radius 2/Radius 1))/(2*pi*Length of Cylinder*(Inner Surface Temperature-Outer Surface Temperature))
Length of Cylindrical Wall for given Heat Flow Rate
Go Length of Cylinder = (Heat Flow Rate*ln(Radius 2/Radius 1))/(2*pi*Thermal Conductivity*(Inner Surface Temperature-Outer Surface Temperature))
Outer Surface Temperature of Cylindrical Wall given Heat Flow Rate
Go Outer Surface Temperature = Inner Surface Temperature-(Heat Flow Rate*ln(Radius 2/Radius 1))/(2*pi*Thermal Conductivity*Length of Cylinder)
Inner Surface Temperature of Cylindrical Wall in Conduction
Go Inner Surface Temperature = Outer Surface Temperature+(Heat Flow Rate*ln(Radius 2/Radius 1))/(2*pi*Thermal Conductivity*Length of Cylinder)
Thickness of Cylindrical Wall to Maintain given Temperature Difference
Go Thickness = Radius 1*(e^(((Inner Surface Temperature-Outer Surface Temperature)*2*pi*Thermal Conductivity*Length of Cylinder)/Heat Flow Rate)-1)
Thermal Resistance for Radial Heat Conduction in Cylinders
Go Thermal Resistance = ln(Outer Radius/Inner Radius)/(2*pi*Thermal Conductivity*Length of Cylinder)
Convection Resistance for Cylindrical Layer
Go Thermal Resistance = 1/(Convection heat transfer*2*pi*Cylinder Radius*Length of Cylinder)

Convection Resistance for Cylindrical Layer Formula

Thermal Resistance = 1/(Convection heat transfer*2*pi*Cylinder Radius*Length of Cylinder)
Rth = 1/(h*2*pi*R*lcyl)

What is convection resistance?

The thermal resistance of the surface against heat convection is known as convection resistance of the surface.

How to Calculate Convection Resistance for Cylindrical Layer?

Convection Resistance for Cylindrical Layer calculator uses Thermal Resistance = 1/(Convection heat transfer*2*pi*Cylinder Radius*Length of Cylinder) to calculate the Thermal Resistance, The Convection Resistance for Cylindrical Layer formula is the resistance offered to the heat flow due to convection over the cylindrical surface. Thermal Resistance is denoted by Rth symbol.

How to calculate Convection Resistance for Cylindrical Layer using this online calculator? To use this online calculator for Convection Resistance for Cylindrical Layer, enter Convection heat transfer (h), Cylinder Radius (R) & Length of Cylinder (lcyl) and hit the calculate button. Here is how the Convection Resistance for Cylindrical Layer calculation can be explained with given input values -> 1.130362 = 1/(2.2*2*pi*0.16*0.4).

FAQ

What is Convection Resistance for Cylindrical Layer?
The Convection Resistance for Cylindrical Layer formula is the resistance offered to the heat flow due to convection over the cylindrical surface and is represented as Rth = 1/(h*2*pi*R*lcyl) or Thermal Resistance = 1/(Convection heat transfer*2*pi*Cylinder Radius*Length of Cylinder). Convection Heat Transfer Coefficient is the rate of heat transfer between a solid surface and a fluid per unit surface area per unit temperature, The Cylinder Radius is the radius of its base & Length of Cylinder is the vertical height of the Cylinder.
How to calculate Convection Resistance for Cylindrical Layer?
The Convection Resistance for Cylindrical Layer formula is the resistance offered to the heat flow due to convection over the cylindrical surface is calculated using Thermal Resistance = 1/(Convection heat transfer*2*pi*Cylinder Radius*Length of Cylinder). To calculate Convection Resistance for Cylindrical Layer, you need Convection heat transfer (h), Cylinder Radius (R) & Length of Cylinder (lcyl). With our tool, you need to enter the respective value for Convection heat transfer, Cylinder Radius & Length of Cylinder 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 Convection heat transfer, Cylinder Radius & Length of Cylinder. We can use 4 other way(s) to calculate the same, which is/are as follows -
  • Thermal Resistance = (ln(Radius 2/Radius 1))/(2*pi*Thermal Conductivity 1*Length of Cylinder)+(ln(Radius 3/Radius 2))/(2*pi*Thermal Conductivity 2*Length of Cylinder)
  • Thermal Resistance = (ln(Radius 2/Radius 1))/(2*pi*Thermal Conductivity 1*Length of Cylinder)+(ln(Radius 3/Radius 2))/(2*pi*Thermal Conductivity 2*Length of Cylinder)+(ln(Radius 4/Radius 3))/(2*pi*Thermal Conductivity 3*Length of Cylinder)
  • Thermal Resistance = ln(Outer Radius/Inner Radius)/(2*pi*Thermal Conductivity*Length of Cylinder)
  • Thermal Resistance = 1/(2*pi*Radius 1*Length of Cylinder*Inside Convection Heat Transfer Coefficient)+(ln(Radius 2/Radius 1))/(2*pi*Thermal Conductivity*Length of Cylinder)+1/(2*pi*Radius 2*Length of Cylinder*External Convection Heat Transfer Coefficient)
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