Area of Composite Wall of 2 Layers Formula

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Area of 2 layer Wall refers to the surface area of the wall, which is the total amount of space that it occupies. It is typically measured in square units such as square feet or square meters. Check FAQs
Aw2=Ql2Ti2-To2(L1k1+L2k2)
Aw2 - Area of 2 Layer Wall?Ql2 - Heat Flow Rate 2 Layer?Ti2 - Inner Surface Temperature 2 layer wall?To2 - Outer Surface Temperature of 2 Layer?L1 - Length 1?k1 - Thermal Conductivity 1?L2 - Length 2?k2 - Thermal Conductivity 2?

Area of Composite Wall of 2 Layers Example

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Here is how the Area of Composite Wall of 2 Layers equation looks like with Values.

Here is how the Area of Composite Wall of 2 Layers equation looks like with Units.

Here is how the Area of Composite Wall of 2 Layers equation looks like.

866.6667Edit=120Edit420.75Edit-420Edit(2Edit1.6Edit+5Edit1.2Edit)
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Area of Composite Wall of 2 Layers Solution

Follow our step by step solution on how to calculate Area of Composite Wall of 2 Layers?

FIRST Step Consider the formula
Aw2=Ql2Ti2-To2(L1k1+L2k2)
Next Step Substitute values of Variables
Aw2=120W420.75K-420K(2m1.6W/(m*K)+5m1.2W/(m*K))
Next Step Prepare to Evaluate
Aw2=120420.75-420(21.6+51.2)
Next Step Evaluate
Aw2=866.666666666667
LAST Step Rounding Answer
Aw2=866.6667

Area of Composite Wall of 2 Layers Formula Elements

Variables
Area of 2 Layer Wall
Area of 2 layer Wall refers to the surface area of the wall, which is the total amount of space that it occupies. It is typically measured in square units such as square feet or square meters.
Symbol: Aw2
Measurement: AreaUnit:
Note: Value should be greater than 0.
Heat Flow Rate 2 Layer
Heat Flow Rate 2 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: Ql2
Measurement: PowerUnit: W
Note: Value can be positive or negative.
Inner Surface Temperature 2 layer wall
Inner Surface Temperature 2 layer wall is the temperature at the inner surface of the wall (either plane wall or cylindrical wall or spherical wall, etc).
Symbol: Ti2
Measurement: TemperatureUnit: K
Note: Value can be positive or negative.
Outer Surface Temperature of 2 Layer
Outer Surface Temperature of 2 layer is the temperature at the outer surface of the wall either plane wall or cylindrical wall or spherical wall, etc.
Symbol: To2
Measurement: TemperatureUnit: K
Note: Value can be positive or negative.
Length 1
Length 1 is the length of the first body.
Symbol: L1
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Thermal Conductivity 1
Thermal Conductivity 1 is the thermal conductivity of the first body.
Symbol: k1
Measurement: Thermal ConductivityUnit: W/(m*K)
Note: Value should be greater than 0.
Length 2
Length 2 is the length of the second body/object/section.
Symbol: L2
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Thermal Conductivity 2
Thermal Conductivity 2 is the thermal conductivity of the second body.
Symbol: k2
Measurement: Thermal ConductivityUnit: W/(m*K)
Note: Value should be greater than 0.

Other formulas in 2 Layers category

​Go Thermal Resistance of Composite Wall with 2 Layers in Series
Rth2=L1k1Aw2+L2k2Aw2
​Go Outer Surface Temperature of Composite Wall of 2 Layers for Conduction
To2=Ti2-Ql2(L1k1Aw2+L2k2Aw2)

How to Evaluate Area of Composite Wall of 2 Layers?

Area of Composite Wall of 2 Layers evaluator uses Area of 2 Layer Wall = Heat Flow Rate 2 Layer/(Inner Surface Temperature 2 layer wall-Outer Surface Temperature of 2 Layer)*(Length 1/Thermal Conductivity 1+Length 2/Thermal Conductivity 2) to evaluate the Area of 2 Layer Wall, The Area of composite wall of 2 layers formula is defined as the area of the composite wall perpendicular to the heat flow required to maintain given temperature difference at given heat flow rate, length/thickness of the layers, and thermal conductivities. Area of 2 Layer Wall is denoted by Aw2 symbol.

How to evaluate Area of Composite Wall of 2 Layers using this online evaluator? To use this online evaluator for Area of Composite Wall of 2 Layers, enter Heat Flow Rate 2 Layer (Ql2), Inner Surface Temperature 2 layer wall (Ti2), Outer Surface Temperature of 2 Layer (To2), Length 1 (L1), Thermal Conductivity 1 (k1), Length 2 (L2) & Thermal Conductivity 2 (k2) and hit the calculate button.

FAQs on Area of Composite Wall of 2 Layers

What is the formula to find Area of Composite Wall of 2 Layers?
The formula of Area of Composite Wall of 2 Layers is expressed as Area of 2 Layer Wall = Heat Flow Rate 2 Layer/(Inner Surface Temperature 2 layer wall-Outer Surface Temperature of 2 Layer)*(Length 1/Thermal Conductivity 1+Length 2/Thermal Conductivity 2). Here is an example- 31.3253 = 120/(420.75-420)*(2/1.6+5/1.2).
How to calculate Area of Composite Wall of 2 Layers?
With Heat Flow Rate 2 Layer (Ql2), Inner Surface Temperature 2 layer wall (Ti2), Outer Surface Temperature of 2 Layer (To2), Length 1 (L1), Thermal Conductivity 1 (k1), Length 2 (L2) & Thermal Conductivity 2 (k2) we can find Area of Composite Wall of 2 Layers using the formula - Area of 2 Layer Wall = Heat Flow Rate 2 Layer/(Inner Surface Temperature 2 layer wall-Outer Surface Temperature of 2 Layer)*(Length 1/Thermal Conductivity 1+Length 2/Thermal Conductivity 2).
Can the Area of Composite Wall of 2 Layers be negative?
No, the Area of Composite Wall of 2 Layers, measured in Area cannot be negative.
Which unit is used to measure Area of Composite Wall of 2 Layers?
Area of Composite Wall of 2 Layers is usually measured using the Square Meter[m²] for Area. Square Kilometer[m²], Square Centimeter[m²], Square Millimeter[m²] are the few other units in which Area of Composite Wall of 2 Layers can be measured.
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