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Outer Surface Temperature of Composite Wall of 3 Layers for Conduction Formula

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Outer Surface Temperature 3 layer is the temperature at the outer surface of the wall either plane wall or cylindrical wall or spherical wall, etc. Check FAQs

T o3 = T i3 - Q l3 \cdot (\frac{L 1}{k 1 \cdot A w3} + \frac{L 2}{k 2 \cdot A w3} + \frac{L 3}{k 3 \cdot A w3})

T_o3 - Outer Surface Temperature 3 Layer?T_i3 - Inner Surface Temperature 3 Layer Wall?Q_l3 - Heat Flow Rate 3 Layer?L₁ - Length 1?k₁ - Thermal Conductivity 1?A_w3 - Area of 3 Layer Wall?L₂ - Length 2?k₂ - Thermal Conductivity 2?L₃ - Length 3?k₃ - Thermal Conductivity 3?

Outer Surface Temperature of Composite Wall of 3 Layers for Conduction Example

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Here is how the Outer Surface Temperature of Composite Wall of 3 Layers for Conduction equation looks like with Values.

Here is how the Outer Surface Temperature of Composite Wall of 3 Layers for Conduction equation looks like with Units.

Here is how the Outer Surface Temperature of Composite Wall of 3 Layers for Conduction equation looks like.

300 = 300.75 - 150 \cdot (\frac{2}{1.6 \cdot 1383.3333} + \frac{5}{1.2 \cdot 1383.3333} + \frac{6}{4 \cdot 1383.3333})

300K = 300.75K - 150W \cdot (\frac{2m}{1.6W/(m*K) \cdot 1383.3333m²} + \frac{5m}{1.2W/(m*K) \cdot 1383.3333m²} + \frac{6m}{4W/(m*K) \cdot 1383.3333m²})

300 = 300.75 - 150 \cdot (\frac{2}{1.6 \cdot 1383.3333} + \frac{5}{1.2 \cdot 1383.3333} + \frac{6}{4 \cdot 1383.3333})

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Outer Surface Temperature of Composite Wall of 3 Layers for Conduction Solution

Follow our step by step solution on how to calculate Outer Surface Temperature of Composite Wall of 3 Layers for Conduction?

FIRST Step Consider the formula

T o3 = T i3 - Q l3 \cdot (\frac{L 1}{k 1 \cdot A w3} + \frac{L 2}{k 2 \cdot A w3} + \frac{L 3}{k 3 \cdot A w3})

Next Step Substitute values of Variables

∴

T o3 = 300.75K - 150W \cdot (\frac{2m}{1.6W/(m*K) \cdot 1383.3333m²} + \frac{5m}{1.2W/(m*K) \cdot 1383.3333m²} + \frac{6m}{4W/(m*K) \cdot 1383.3333m²})

Next Step Prepare to Evaluate

∴

T o3 = 300.75 - 150 \cdot (\frac{2}{1.6 \cdot 1383.3333} + \frac{5}{1.2 \cdot 1383.3333} + \frac{6}{4 \cdot 1383.3333})

Next Step Evaluate

∴

T o3 = 299.999999998193K

LAST Step Rounding Answer

∴

T o3 = 300K

Outer Surface Temperature of Composite Wall of 3 Layers for Conduction Formula Elements

Variables

Outer Surface Temperature 3 Layer

Outer Surface Temperature 3 layer is the temperature at the outer surface of the wall either plane wall or cylindrical wall or spherical wall, etc.

Symbol: T_o3

Measurement: TemperatureUnit: K

Note: Value can be positive or negative.

Formulas to find Outer Surface Temperature 3 Layer

Inner Surface Temperature 3 Layer Wall

Inner Surface Temperature 3 layer wall is the temperature at the inner surface of the wall (either plane wall or cylindrical wall or spherical wall, etc).

Symbol: T_i3

Measurement: TemperatureUnit: K

Note: Value can be positive or negative.

Formulas to find Inner Surface Temperature 3 Layer Wall

Heat Flow Rate 3 Layer

Heat Flow Rate 3 Layer is the amount of heat that is transferred per unit of time in some material, usually measured in watt. Heat is the flow of thermal energy driven by thermal non-equilibrium.

Symbol: Q_l3

Measurement: PowerUnit: W

Note: Value can be positive or negative.

Formulas to find Heat Flow Rate 3 Layer

Length 1

Length 1 is the length of the first body.

Symbol: L₁

Measurement: LengthUnit: m