Thermal Diffusivity Calculator

✖Thermal Conductivity of Conduction is the rate of heat passes through specified material.ⓘ Thermal Conductivity of Conduction [K_cond]			+10% -10%
✖The Density of a material shows the denseness of that material in a specific given area. This is taken as mass per unit volume of a given object.ⓘ Density [ρ]			+10% -10%
✖Specific Heat Capacity is the heat required to raise the temperature of the unit mass of a given substance by a given amount.ⓘ Specific Heat Capacity [C_o]			+10% -10%

✖Thermal Diffusivity is the thermal conductivity divided by density and specific heat capacity at constant pressure.ⓘ Thermal Diffusivity [α]

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Thermal Diffusivity Solution

STEP 0: Pre-Calculation Summary

Formula Used

Thermal Diffusivity = Thermal Conductivity of Conduction/(Density*Specific Heat Capacity)
α = K_cond/(ρ*C_o)
This formula uses 4 Variables

Variables Used

Thermal Diffusivity - (Measured in Square Meter Per Second) - Thermal Diffusivity is the thermal conductivity divided by density and specific heat capacity at constant pressure.
Thermal Conductivity of Conduction - (Measured in Watt per Meter per K) - Thermal Conductivity of Conduction is the rate of heat passes through specified material.
Density - (Measured in Kilogram per Cubic Meter) - The Density of a material shows the denseness of that material in a specific given area. This is taken as mass per unit volume of a given object.
Specific Heat Capacity - (Measured in Joule per Kilogram per K) - Specific Heat Capacity is the heat required to raise the temperature of the unit mass of a given substance by a given amount.

STEP 1: Convert Input(s) to Base Unit

Thermal Conductivity of Conduction: 10.19 Watt per Meter per K --> 10.19 Watt per Meter per K No Conversion Required
Density: 5.51 Kilogram per Cubic Meter --> 5.51 Kilogram per Cubic Meter No Conversion Required
Specific Heat Capacity: 4 Joule per Kilogram per K --> 4 Joule per Kilogram per K No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

α = K_cond/(ρ*C_o) --> 10.19/(5.51*4)

Evaluating ... ...

α = 0.462341197822142

STEP 3: Convert Result to Output's Unit

0.462341197822142 Square Meter Per Second --> No Conversion Required

FINAL ANSWER

0.462341197822142 ≈ 0.462341 Square Meter Per Second <-- Thermal Diffusivity

(Calculation completed in 00.045 seconds)

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Created by Ishan Gupta

Birla Institute of Technology & Science (BITS), Pilani

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< Transient Heat Conduction Calculators

Instantaneous heat transfer rate

LaTeX Go Heat Rate = Convection Heat Transfer Coefficient*Surface Area*(Initial Temperature-Fluid Temperature)*(exp(-(Convection Heat Transfer Coefficient*Surface Area*Time Elapsed)/(Density*Total Volume*Specific Heat Capacity)))

Total Heat Transfer during Time Interval

LaTeX Go Heat Transfer = Density*Specific Heat*Total Volume*(Initial Temperature-Fluid Temperature)*(1-(exp(-(Biot Number*Fourier Number))))

Power on exponential of temperature-time relation

LaTeX Go Constant B = -(Convection Heat Transfer Coefficient*Surface Area*Time Elapsed)/(Density*Total Volume*Specific Heat Capacity)

Time Constant in unsteady state heat transfer

LaTeX Go Time Constant = (Density*Specific Heat Capacity*Total Volume)/(Convection Heat Transfer Coefficient*Surface Area)

< Basics of Modes of Heat Transfer Calculators

Radial Heat Flowing through Cylinder

LaTeX Go Heat = Thermal Conductivity of Heat*2*pi*Temperature Difference*Length of Cylinder/(ln(Outer Radius of Cylinder/Inner Radius of Cylinder))

Heat Transfer through Plane Wall or Surface

LaTeX Go Heat Flow Rate = -Thermal Conductivity of Heat*Cross Sectional Area*(Outside Temperature-Inside Temperature)/Width of Plane Surface

Radiative Heat Transfer

LaTeX Go Heat = [Stefan-BoltZ]*Body Surface Area*Geometric View Factor*(Temperature of Surface 1^4-Temperature of Surface 2^4)

Total Emissive Power of Radiating Body

LaTeX Go Emissive Power per Unit Area = (Emissivity*(Effective Radiating Temperature)^4)*[Stefan-BoltZ]

Thermal Diffusivity Formula

LaTeX Go

Thermal Diffusivity = Thermal Conductivity of Conduction/(Density*Specific Heat Capacity)
α = K_cond/(ρ*C_o)

What Is Thermal Diffusivity?

In heat transfer analysis, thermal diffusivity is the thermal conductivity divided by density and specific heat capacity at constant pressure. It measures the rate of transfer of heat in a material from the hot end to the cold end.

How to Calculate Thermal Diffusivity?

Thermal Diffusivity calculator uses Thermal Diffusivity = Thermal Conductivity of Conduction/(Density*Specific Heat Capacity) to calculate the Thermal Diffusivity, Thermal diffusivity is the thermal conductivity divided by density and specific heat capacity at constant pressure. It measures the rate of transfer of heat in a material from the hot end to the cold end. Thermal Diffusivity is denoted by α symbol.

How to calculate Thermal Diffusivity using this online calculator? To use this online calculator for Thermal Diffusivity, enter Thermal Conductivity of Conduction (K_cond), Density (ρ) & Specific Heat Capacity (C_o) and hit the calculate button. Here is how the Thermal Diffusivity calculation can be explained with given input values -> 0.462341 = 10.19/(5.51*4).

FAQ

What is Thermal Diffusivity?

Thermal diffusivity is the thermal conductivity divided by density and specific heat capacity at constant pressure. It measures the rate of transfer of heat in a material from the hot end to the cold end and is represented as α = K_cond/(ρ*C_o) or Thermal Diffusivity = Thermal Conductivity of Conduction/(Density*Specific Heat Capacity). Thermal Conductivity of Conduction is the rate of heat passes through specified material, The Density of a material shows the denseness of that material in a specific given area. This is taken as mass per unit volume of a given object & Specific Heat Capacity is the heat required to raise the temperature of the unit mass of a given substance by a given amount.

How to calculate Thermal Diffusivity?

Thermal diffusivity is the thermal conductivity divided by density and specific heat capacity at constant pressure. It measures the rate of transfer of heat in a material from the hot end to the cold end is calculated using Thermal Diffusivity = Thermal Conductivity of Conduction/(Density*Specific Heat Capacity). To calculate Thermal Diffusivity, you need Thermal Conductivity of Conduction (K_cond), Density (ρ) & Specific Heat Capacity (C_o). With our tool, you need to enter the respective value for Thermal Conductivity of Conduction, Density & Specific Heat Capacity 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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