FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

Biot Number using Heat Transfer Coefficient Formula

GoBiot Number using Fourier Number Formula

GoBiot Number given Heat Transfer Coefficient and Time Constant Formula

Fx Copy

LaTeX Copy

Biot Number is a dimensionless quantity having the ratio of internal conduction resistance to the surface convection resistance. Check FAQs

Bi = \frac{h \cdot 𝓁}{k}

Bi - Biot Number?h - Heat Transfer Coefficient?𝓁 - Thickness of Wall?k - Thermal Conductivity?

Biot Number using Heat Transfer Coefficient Example

With values

With units

Only example

Here is how the Biot Number using Heat Transfer Coefficient equation looks like with Values.

Here is how the Biot Number using Heat Transfer Coefficient equation looks like with Units.

Here is how the Biot Number using Heat Transfer Coefficient equation looks like.

23.1628 = \frac{10 \cdot 4.98}{2.15}

23.1628 = \frac{10W/m²*K \cdot 4.98m}{2.15W/(m*K)}

23.1628 = \frac{10 \cdot 4.98}{2.15}

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Engineering » Category

Chemical Engineering » Category

Heat Transfer » fx Biot Number using Heat Transfer Coefficient

Biot Number using Heat Transfer Coefficient Solution

Follow our step by step solution on how to calculate Biot Number using Heat Transfer Coefficient?

FIRST Step Consider the formula

Bi = \frac{h \cdot 𝓁}{k}

Next Step Substitute values of Variables

∴

Bi = \frac{10W/m²*K \cdot 4.98m}{2.15W/(m*K)}

Next Step Prepare to Evaluate

∴

Bi = \frac{10 \cdot 4.98}{2.15}

Next Step Evaluate

∴

Bi = 23.1627906976744

LAST Step Rounding Answer

∴

Bi = 23.1628

Biot Number using Heat Transfer Coefficient Formula Elements

Variables

Biot Number

Biot Number is a dimensionless quantity having the ratio of internal conduction resistance to the surface convection resistance.

Symbol: Bi

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Biot Number

Heat Transfer Coefficient

The Heat Transfer Coefficient is the heat transferred per unit area per kelvin. Thus area is included in the equation as it represents the area over which the transfer of heat takes place.

Symbol: h

Measurement: Heat Transfer CoefficientUnit: W/m²*K

Note: Value can be positive or negative.

Formulas to find Heat Transfer Coefficient

Thickness of Wall

The thickness of Wall refers to the distance between one surface of your model and its opposite sheer surface. Wall thickness is defined as the minimum thickness your model should have at any time.

Symbol: 𝓁

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Thickness of Wall

Thermal Conductivity

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.

Symbol: k

Measurement: Thermal ConductivityUnit: W/(m*K)

Note: Value should be greater than 0.

Formulas to find Thermal Conductivity

Other Formulas to find Biot Number

Go Biot Number using Fourier Number

Bi = (- \frac{1}{F o}) \cdot \ln (\frac{T - T ∞}{T 0 - T ∞})

Go Biot Number given Heat Transfer Coefficient and Time Constant

Bi = \frac{h \cdot A c \cdot 𝜏}{ρ B \cdot c \cdot V \cdot F o}

Go Biot Number given Characteristic Dimension and Fourier Number

Bi = \frac{h \cdot 𝜏}{ρ B \cdot c \cdot s \cdot F o}

Other formulas in Unsteady State Heat Conduction category

Go Fourier Number using Biot Number

F o = (- \frac{1}{Bi}) \cdot \ln (\frac{T - T ∞}{T 0 - T ∞})

Go Initial Internal Energy Content of Body in Reference to Environment Temperature

Q o = ρ B \cdot c \cdot V \cdot (T i - T amb)

Go Fourier Number

F o = \frac{α \cdot 𝜏 c}{s^{2}}

Go Fourier Number using Thermal Conductivity

F o = (\frac{k \cdot 𝜏 c}{ρ B \cdot c \cdot (s^{2})})

How to Evaluate Biot Number using Heat Transfer Coefficient?

Biot Number using Heat Transfer Coefficient evaluator uses Biot Number = (Heat Transfer Coefficient*Thickness of Wall)/Thermal Conductivity to evaluate the Biot Number, The Biot Number using Heat Transfer Coefficient formula is defined as the ratio of Internal conduction resistance to the external convection resistance. Biot Number is denoted by Bi symbol.

How to evaluate Biot Number using Heat Transfer Coefficient using this online evaluator? To use this online evaluator for Biot Number using Heat Transfer Coefficient, enter Heat Transfer Coefficient (h), Thickness of Wall (𝓁) & Thermal Conductivity (k) and hit the calculate button.

FAQs on Biot Number using Heat Transfer Coefficient

What is the formula to find Biot Number using Heat Transfer Coefficient?

The formula of Biot Number using Heat Transfer Coefficient is expressed as Biot Number = (Heat Transfer Coefficient*Thickness of Wall)/Thermal Conductivity. Here is an example- 23.16279 = (10*4.98)/2.15.

How to calculate Biot Number using Heat Transfer Coefficient?

With Heat Transfer Coefficient (h), Thickness of Wall (𝓁) & Thermal Conductivity (k) we can find Biot Number using Heat Transfer Coefficient using the formula - Biot Number = (Heat Transfer Coefficient*Thickness of Wall)/Thermal Conductivity.

What are the other ways to Calculate Biot Number?

Here are the different ways to Calculate Biot Number-

Biot Number=(-1/Fourier Number)*ln((Temperature at Any Time T-Temperature of Bulk Fluid)/(Initial Temperature of Object-Temperature of Bulk Fluid))
Biot Number=(Heat Transfer Coefficient*Surface Area for Convection*Time Constant)/(Density of Body*Specific Heat Capacity*Volume of Object*Fourier Number)
Biot Number=(Heat Transfer Coefficient*Time Constant)/(Density of Body*Specific Heat Capacity*Characteristic Dimension*Fourier Number)

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit

Biot Number using Heat Transfer Coefficient Formula

​GoBiot Number using Fourier Number Formula

​GoBiot Number given Heat Transfer Coefficient and Time Constant Formula

Biot Number using Heat Transfer Coefficient Example

Biot Number using Heat Transfer Coefficient Solution

Biot Number using Heat Transfer Coefficient Formula Elements

Other Formulas to find Biot Number

Other formulas in Unsteady State Heat Conduction category

How to Evaluate Biot Number using Heat Transfer Coefficient?

FAQs on Biot Number using Heat Transfer Coefficient

Variable Name

GoBiot Number using Fourier Number Formula

GoBiot Number given Heat Transfer Coefficient and Time Constant Formula