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

STEP 0: Pre-Calculation Summary
Formula Used
Outer Surface Temperature 3 Layer = Inner Surface Temperature 3 Layer Wall-Heat Flow Rate 3 Layer*(Length 1/(Thermal Conductivity 1*Area of 3 Layer Wall)+Length 2/(Thermal Conductivity 2*Area of 3 Layer Wall)+Length 3/(Thermal Conductivity 3*Area of 3 Layer Wall))
To3 = Ti3-Q3layer*(L1/(k1*A3wall)+L2/(k2*A3wall)+L3/(k3*A3wall))
This formula uses 10 Variables
Variables Used
Outer Surface Temperature 3 Layer - (Measured in Kelvin) - 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.
Inner Surface Temperature 3 Layer Wall - (Measured in Kelvin) - 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).
Heat Flow Rate 3 Layer - (Measured in Watt) - 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.
Length 1 - (Measured in Meter) - Length 1 is the length of the first body.
Thermal Conductivity 1 - (Measured in Watt per Meter per K) - Thermal Conductivity 1 is the thermal conductivity of the first body.
Area of 3 Layer Wall - (Measured in Square Meter) - Area of 3 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.
Length 2 - (Measured in Meter) - Length 2 is the length of the second body/object/section.
Thermal Conductivity 2 - (Measured in Watt per Meter per K) - Thermal Conductivity 2 is the thermal conductivity of the second body.
Length 3 - (Measured in Meter) - Length 3 is the length of the third body/object/section.
Thermal Conductivity 3 - (Measured in Watt per Meter per K) - Thermal Conductivity 3 is the thermal conductivity of the third body.
STEP 1: Convert Input(s) to Base Unit
Inner Surface Temperature 3 Layer Wall: 300.75 Kelvin --> 300.75 Kelvin No Conversion Required
Heat Flow Rate 3 Layer: 150 Watt --> 150 Watt No Conversion Required
Length 1: 2 Meter --> 2 Meter No Conversion Required
Thermal Conductivity 1: 1.6 Watt per Meter per K --> 1.6 Watt per Meter per K No Conversion Required
Area of 3 Layer Wall: 1383.33333 Square Meter --> 1383.33333 Square Meter No Conversion Required
Length 2: 5 Meter --> 5 Meter No Conversion Required
Thermal Conductivity 2: 1.2 Watt per Meter per K --> 1.2 Watt per Meter per K No Conversion Required
Length 3: 6 Meter --> 6 Meter No Conversion Required
Thermal Conductivity 3: 4 Watt per Meter per K --> 4 Watt per Meter per K No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
To3 = Ti3-Q3layer*(L1/(k1*A3wall)+L2/(k2*A3wall)+L3/(k3*A3wall)) --> 300.75-150*(2/(1.6*1383.33333)+5/(1.2*1383.33333)+6/(4*1383.33333))
Evaluating ... ...
To3 = 299.999999998193
STEP 3: Convert Result to Output's Unit
299.999999998193 Kelvin --> No Conversion Required
FINAL ANSWER
299.999999998193 300 Kelvin <-- Outer Surface Temperature 3 Layer
(Calculation completed in 00.004 seconds)

Credits

Vallurupalli Nageswara Rao Vignana Jyothi Institute of Engineering and Technology (VNRVJIET), Hyderabad
Sai Venkata Phanindra Chary Arendra has created this Calculator and 100+ more calculators!
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Indian Institute for Aeronautical Engineering and Information Technology (IIAEIT), Pune
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6 3 Layers Calculators

Heat Flow Rate through Composite Wall of 3 Layers in Series
Go Heat Flow Rate 3 Layer = (Inner Surface Temperature 3 Layer Wall-Outer Surface Temperature 3 Layer)/(Length 1/(Thermal Conductivity 1*Area of 3 Layer Wall)+Length 2/(Thermal Conductivity 2*Area of 3 Layer Wall)+Length 3/(Thermal Conductivity 3*Area of 3 Layer Wall))
Outer Surface Temperature of Composite Wall of 3 Layers for Conduction
Go Outer Surface Temperature 3 Layer = Inner Surface Temperature 3 Layer Wall-Heat Flow Rate 3 Layer*(Length 1/(Thermal Conductivity 1*Area of 3 Layer Wall)+Length 2/(Thermal Conductivity 2*Area of 3 Layer Wall)+Length 3/(Thermal Conductivity 3*Area of 3 Layer Wall))
Inner Surface Temperature of Composite Wall of 3 Layers in Series
Go Inner Surface Temperature 3 Layer Wall = Outer Surface Temperature 3 Layer+Heat Flow Rate 3 Layer*(Length 1/(Thermal Conductivity 1*Area of 3 Layer Wall)+Length 2/(Thermal Conductivity 2*Area of 3 Layer Wall)+Length 3/(Thermal Conductivity 3*Area of 3 Layer Wall))
Length of 3rd Layer of Composite Wall in Conduction through Walls
Go Length 3 = Thermal Conductivity 3*Area of 3 Layer Wall*((Inner Surface Temperature 3 Layer Wall-Outer Surface Temperature 3 Layer)/Heat Flow Rate 3 Layer-Length 1/(Thermal Conductivity 1*Area of 3 Layer Wall)-Length 2/(Thermal Conductivity 2*Area of 3 Layer Wall))
Area of Composite Wall of 3 Layers
Go Area of 3 Layer Wall = Heat Flow Rate 3 Layer/(Inner Surface Temperature 3 Layer Wall-Outer Surface Temperature 3 Layer)*(Length 1/Thermal Conductivity 1+Length 2/Thermal Conductivity 2+Length 3/Thermal Conductivity 3)
Thermal Resistance of Composite Wall with 3 Layers in Series
Go Thermal Resistance of 3 Layer = Length 1/(Thermal Conductivity 1*Area of 3 Layer Wall)+Length 2/(Thermal Conductivity 2*Area of 3 Layer Wall)+Length 3/(Thermal Conductivity 3*Area of 3 Layer Wall)

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

Outer Surface Temperature 3 Layer = Inner Surface Temperature 3 Layer Wall-Heat Flow Rate 3 Layer*(Length 1/(Thermal Conductivity 1*Area of 3 Layer Wall)+Length 2/(Thermal Conductivity 2*Area of 3 Layer Wall)+Length 3/(Thermal Conductivity 3*Area of 3 Layer Wall))
To3 = Ti3-Q3layer*(L1/(k1*A3wall)+L2/(k2*A3wall)+L3/(k3*A3wall))

What is a composite wall?

A wall built of a combination of two or more masonry units of different types of materials that are bonded together, one forming the facing of the wall and the other the backup

How to Calculate Outer Surface Temperature of Composite Wall of 3 Layers for Conduction?

Outer Surface Temperature of Composite Wall of 3 Layers for Conduction calculator uses Outer Surface Temperature 3 Layer = Inner Surface Temperature 3 Layer Wall-Heat Flow Rate 3 Layer*(Length 1/(Thermal Conductivity 1*Area of 3 Layer Wall)+Length 2/(Thermal Conductivity 2*Area of 3 Layer Wall)+Length 3/(Thermal Conductivity 3*Area of 3 Layer Wall)) to calculate the Outer Surface Temperature 3 Layer, The Outer Surface Temperature of Composite Wall of 3 Layers for Conduction formula is defined as the temperature at the outer surface of the composite wall of 3 layers in series when the heat flow rate, inner surface temperature, length/thickness of layers, area, and thermal conductivities are known. Outer Surface Temperature 3 Layer is denoted by To3 symbol.

How to calculate Outer Surface Temperature of Composite Wall of 3 Layers for Conduction using this online calculator? To use this online calculator for Outer Surface Temperature of Composite Wall of 3 Layers for Conduction, enter Inner Surface Temperature 3 Layer Wall (Ti3), Heat Flow Rate 3 Layer (Q3layer), Length 1 (L1), Thermal Conductivity 1 (k1), Area of 3 Layer Wall (A3wall), Length 2 (L2), Thermal Conductivity 2 (k2), Length 3 (L3) & Thermal Conductivity 3 (k3) and hit the calculate button. Here is how the Outer Surface Temperature of Composite Wall of 3 Layers for Conduction calculation can be explained with given input values -> 300 = 300.75-150*(2/(1.6*1383.33333)+5/(1.2*1383.33333)+6/(4*1383.33333)).

FAQ

What is Outer Surface Temperature of Composite Wall of 3 Layers for Conduction?
The Outer Surface Temperature of Composite Wall of 3 Layers for Conduction formula is defined as the temperature at the outer surface of the composite wall of 3 layers in series when the heat flow rate, inner surface temperature, length/thickness of layers, area, and thermal conductivities are known and is represented as To3 = Ti3-Q3layer*(L1/(k1*A3wall)+L2/(k2*A3wall)+L3/(k3*A3wall)) or Outer Surface Temperature 3 Layer = Inner Surface Temperature 3 Layer Wall-Heat Flow Rate 3 Layer*(Length 1/(Thermal Conductivity 1*Area of 3 Layer Wall)+Length 2/(Thermal Conductivity 2*Area of 3 Layer Wall)+Length 3/(Thermal Conductivity 3*Area of 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), 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, Length 1 is the length of the first body, Thermal Conductivity 1 is the thermal conductivity of the first body, Area of 3 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, Length 2 is the length of the second body/object/section, Thermal Conductivity 2 is the thermal conductivity of the second body, Length 3 is the length of the third body/object/section & Thermal Conductivity 3 is the thermal conductivity of the third body.
How to calculate Outer Surface Temperature of Composite Wall of 3 Layers for Conduction?
The Outer Surface Temperature of Composite Wall of 3 Layers for Conduction formula is defined as the temperature at the outer surface of the composite wall of 3 layers in series when the heat flow rate, inner surface temperature, length/thickness of layers, area, and thermal conductivities are known is calculated using Outer Surface Temperature 3 Layer = Inner Surface Temperature 3 Layer Wall-Heat Flow Rate 3 Layer*(Length 1/(Thermal Conductivity 1*Area of 3 Layer Wall)+Length 2/(Thermal Conductivity 2*Area of 3 Layer Wall)+Length 3/(Thermal Conductivity 3*Area of 3 Layer Wall)). To calculate Outer Surface Temperature of Composite Wall of 3 Layers for Conduction, you need Inner Surface Temperature 3 Layer Wall (Ti3), Heat Flow Rate 3 Layer (Q3layer), Length 1 (L1), Thermal Conductivity 1 (k1), Area of 3 Layer Wall (A3wall), Length 2 (L2), Thermal Conductivity 2 (k2), Length 3 (L3) & Thermal Conductivity 3 (k3). With our tool, you need to enter the respective value for Inner Surface Temperature 3 Layer Wall, Heat Flow Rate 3 Layer, Length 1, Thermal Conductivity 1, Area of 3 Layer Wall, Length 2, Thermal Conductivity 2, Length 3 & Thermal Conductivity 3 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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