Thermal Conductivity given Critical Thickness of Insulation for Cylinder Calculator

✖Critical thickness of insulation means the thickness at which maximum heat loss with min thermal resistance.ⓘ Critical Thickness of Insulation [r_c]			+10% -10%
✖Heat Transfer Coefficient at Outer Surface is the amount of heat transferred for a unit temperature difference between the surrounding fluid and the unit area of the insulation surface in unit time.ⓘ Heat Transfer Coefficient at Outer Surface [h_o]			+10% -10%

✖Thermal Conductivity is rate of heat passes through specified material, 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 given Critical Thickness of Insulation for Cylinder [k]

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Formula

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Thermal Conductivity given Critical Thickness of Insulation for Cylinder

Formula

k = r c \cdot h o

Example

6.545 W/(m*K) = 0.77 m \cdot 8.5 W/m²*K

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Thermal Conductivity given Critical Thickness of Insulation for Cylinder Solution

STEP 0: Pre-Calculation Summary

Formula Used

Thermal Conductivity = Critical Thickness of Insulation*Heat Transfer Coefficient at Outer Surface
k = r_c*h_o
This formula uses 3 Variables

Variables Used

Thermal Conductivity - (Measured in Watt per Meter per K) - Thermal Conductivity is rate of heat passes through specified material, expressed as amount of heat flows per unit time through a unit area with a temperature gradient of one degree per unit distance.
Critical Thickness of Insulation - (Measured in Meter) - Critical thickness of insulation means the thickness at which maximum heat loss with min thermal resistance.
Heat Transfer Coefficient at Outer Surface - (Measured in Watt per Square Meter per Kelvin) - Heat Transfer Coefficient at Outer Surface is the amount of heat transferred for a unit temperature difference between the surrounding fluid and the unit area of the insulation surface in unit time.

STEP 1: Convert Input(s) to Base Unit

Critical Thickness of Insulation: 0.77 Meter --> 0.77 Meter No Conversion Required
Heat Transfer Coefficient at Outer Surface: 8.5 Watt per Square Meter per Kelvin --> 8.5 Watt per Square Meter per Kelvin No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

k = r_c*h_o --> 0.77*8.5

Evaluating ... ...

k = 6.545

STEP 3: Convert Result to Output's Unit

6.545 Watt per Meter per K --> No Conversion Required

FINAL ANSWER

6.545 Watt per Meter per K <-- Thermal Conductivity

(Calculation completed in 00.020 seconds)

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Created by Rushi Shah

K J Somaiya College of Engineering (K J Somaiya), Mumbai

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Indian Institute of Technology (IIT), Kanpur

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< Conduction in Cylinder Calculators

Total Thermal Resistance of 3 Cylindrical Resistances Connected in Series

Go Thermal Resistance = (ln(Radius of 2nd Cylinder/Radius of 1st Cylinder))/(2*pi*Thermal Conductivity 1*Length of Cylinder)+(ln(Radius of 3rd Cylinder/Radius of 2nd Cylinder))/(2*pi*Thermal Conductivity 2*Length of Cylinder)+(ln(Radius of 4th Cylinder/Radius of 3rd Cylinder))/(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 of 1st Cylinder*Length of Cylinder*Inside Convection Heat Transfer Coefficient)+(ln(Radius of 2nd Cylinder/Radius of 1st Cylinder))/(2*pi*Thermal Conductivity*Length of Cylinder)+1/(2*pi*Radius of 2nd Cylinder*Length of Cylinder*External Convection Heat Transfer Coefficient)

Total Thermal Resistance of 2 Cylindrical Resistances Connected in Series

Thermal Resistance for Radial Heat Conduction in Cylinders

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

< Conduction, Convection and Radiation Calculators

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))

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 of The Body)

Convective Processes Heat Transfer Coefficient

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

Thermal Resistance in Convection Heat Transfer

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

Thermal Conductivity given Critical Thickness of Insulation for Cylinder Formula

Thermal Conductivity = Critical Thickness of Insulation*Heat Transfer Coefficient at Outer Surface
k = r_c*h_o

What is Heat Transfer Coefficient?

Heat transfer coefficient is a quantitative characteristic of convective heat transfer between a fluid medium (a fluid) and the surface (wall) flowed over by the fluid.

How to Calculate Thermal Conductivity given Critical Thickness of Insulation for Cylinder?

Thermal Conductivity given Critical Thickness of Insulation for Cylinder calculator uses Thermal Conductivity = Critical Thickness of Insulation*Heat Transfer Coefficient at Outer Surface to calculate the Thermal Conductivity, Thermal Conductivity given Critical Thickness of Insulation for Cylinder is the product of critical Thickness of Insulation and Heat Transfer Coefficient. Thermal Conductivity is denoted by k symbol.

How to calculate Thermal Conductivity given Critical Thickness of Insulation for Cylinder using this online calculator? To use this online calculator for Thermal Conductivity given Critical Thickness of Insulation for Cylinder, enter Critical Thickness of Insulation (r_c) & Heat Transfer Coefficient at Outer Surface (h_o) and hit the calculate button. Here is how the Thermal Conductivity given Critical Thickness of Insulation for Cylinder calculation can be explained with given input values -> 42.5 = 0.77*8.5.

FAQ

What is Thermal Conductivity given Critical Thickness of Insulation for Cylinder?

Thermal Conductivity given Critical Thickness of Insulation for Cylinder is the product of critical Thickness of Insulation and Heat Transfer Coefficient and is represented as k = r_c*h_o or Thermal Conductivity = Critical Thickness of Insulation*Heat Transfer Coefficient at Outer Surface. Critical thickness of insulation means the thickness at which maximum heat loss with min thermal resistance & Heat Transfer Coefficient at Outer Surface is the amount of heat transferred for a unit temperature difference between the surrounding fluid and the unit area of the insulation surface in unit time.

How to calculate Thermal Conductivity given Critical Thickness of Insulation for Cylinder?

Thermal Conductivity given Critical Thickness of Insulation for Cylinder is the product of critical Thickness of Insulation and Heat Transfer Coefficient is calculated using Thermal Conductivity = Critical Thickness of Insulation*Heat Transfer Coefficient at Outer Surface. To calculate Thermal Conductivity given Critical Thickness of Insulation for Cylinder, you need Critical Thickness of Insulation (r_c) & Heat Transfer Coefficient at Outer Surface (h_o). With our tool, you need to enter the respective value for Critical Thickness of Insulation & Heat Transfer Coefficient at Outer Surface 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 Conductivity?

In this formula, Thermal Conductivity uses Critical Thickness of Insulation & Heat Transfer Coefficient at Outer Surface. We can use 1 other way(s) to calculate the same, which is/are as follows -

Thermal Conductivity = (Heat Flow Rate*ln(Radius of 2nd Cylinder/Radius of 1st Cylinder))/(2*pi*Length of Cylinder*(Inner Surface Temperature-Outer Surface Temperature))

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