Outer Surface Temperature of Composite Wall of 2 Layers for Conduction Solution

STEP 0: Pre-Calculation Summary
Formula Used
Outer Surface Temperature of 2 Layer = Inner Surface Temperature 2 layer wall-Heat Flow Rate 2 Layer*(Length 1/(Thermal Conductivity 1*Area of 2 Layer Wall)+Length 2/(Thermal Conductivity 2*Area of 2 Layer Wall))
To2 = Ti2-Ql2*(L1/(k1*Aw2)+L2/(k2*Aw2))
This formula uses 8 Variables
Variables Used
Outer Surface Temperature of 2 Layer - (Measured in Kelvin) - 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.
Inner Surface Temperature 2 layer wall - (Measured in Kelvin) - 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).
Heat Flow Rate 2 Layer - (Measured in Watt) - 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.
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 2 Layer Wall - (Measured in Square Meter) - 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.
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.
STEP 1: Convert Input(s) to Base Unit
Inner Surface Temperature 2 layer wall: 420.75 Kelvin --> 420.75 Kelvin No Conversion Required
Heat Flow Rate 2 Layer: 120 Watt --> 120 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 2 Layer Wall: 866.6667 Square Meter --> 866.6667 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
STEP 2: Evaluate Formula
Substituting Input Values in Formula
To2 = Ti2-Ql2*(L1/(k1*Aw2)+L2/(k2*Aw2)) --> 420.75-120*(2/(1.6*866.6667)+5/(1.2*866.6667))
Evaluating ... ...
To2 = 420.000000028846
STEP 3: Convert Result to Output's Unit
420.000000028846 Kelvin --> No Conversion Required
FINAL ANSWER
420.000000028846 420 Kelvin <-- Outer Surface Temperature of 2 Layer
(Calculation completed in 00.004 seconds)

Credits

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Vallurupalli Nageswara Rao Vignana Jyothi Institute of Engineering and Technology (VNRVJIET), Hyderabad
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Indian Institute for Aeronautical Engineering and Information Technology (IIAEIT), Pune
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2 Layers Calculators

Outer Surface Temperature of Composite Wall of 2 Layers for Conduction
​ LaTeX ​ Go Outer Surface Temperature of 2 Layer = Inner Surface Temperature 2 layer wall-Heat Flow Rate 2 Layer*(Length 1/(Thermal Conductivity 1*Area of 2 Layer Wall)+Length 2/(Thermal Conductivity 2*Area of 2 Layer Wall))
Thermal Resistance of Composite Wall with 2 Layers in Series
​ LaTeX ​ Go Thermal Resistance of 2 Layer = Length 1/(Thermal Conductivity 1*Area of 2 Layer Wall)+Length 2/(Thermal Conductivity 2*Area of 2 Layer Wall)
Interface Temperature of Composite Wall of 2 Layers given Outer Surface Temperature
​ LaTeX ​ Go Temperature of Surface 2 = Outer Surface Temperature of 2 Layer+(Heat Flow Rate 2 Layer*Length 2)/(Thermal Conductivity 2*Area of 2 Layer Wall)
Interface Temperature of Composite Wall of 2 Layers given Inner Surface Temperature
​ LaTeX ​ Go Temperature of Surface 2 = Temperature of Surface 1-(Heat Flow Rate 2 Layer*Length 1)/(Thermal Conductivity 1*Area of 2 Layer Wall)

Outer Surface Temperature of Composite Wall of 2 Layers for Conduction Formula

​LaTeX ​Go
Outer Surface Temperature of 2 Layer = Inner Surface Temperature 2 layer wall-Heat Flow Rate 2 Layer*(Length 1/(Thermal Conductivity 1*Area of 2 Layer Wall)+Length 2/(Thermal Conductivity 2*Area of 2 Layer Wall))
To2 = Ti2-Ql2*(L1/(k1*Aw2)+L2/(k2*Aw2))

What is heat flow rate?

The rate of heat flow 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,

How to Calculate Outer Surface Temperature of Composite Wall of 2 Layers for Conduction?

Outer Surface Temperature of Composite Wall of 2 Layers for Conduction calculator uses Outer Surface Temperature of 2 Layer = Inner Surface Temperature 2 layer wall-Heat Flow Rate 2 Layer*(Length 1/(Thermal Conductivity 1*Area of 2 Layer Wall)+Length 2/(Thermal Conductivity 2*Area of 2 Layer Wall)) to calculate the Outer Surface Temperature of 2 Layer, The Outer Surface Temperature of Composite Wall of 2 Layers for Conduction formula is defined as the temperature at the outer surface of the composite wall for a given rate of heat flow, inner surface temperature, length/thickness of the walls, area for heat transfer, and thermal conductivities. Outer Surface Temperature of 2 Layer is denoted by To2 symbol.

How to calculate Outer Surface Temperature of Composite Wall of 2 Layers for Conduction using this online calculator? To use this online calculator for Outer Surface Temperature of Composite Wall of 2 Layers for Conduction, enter Inner Surface Temperature 2 layer wall (Ti2), Heat Flow Rate 2 Layer (Ql2), Length 1 (L1), Thermal Conductivity 1 (k1), Area of 2 Layer Wall (Aw2), Length 2 (L2) & Thermal Conductivity 2 (k2) and hit the calculate button. Here is how the Outer Surface Temperature of Composite Wall of 2 Layers for Conduction calculation can be explained with given input values -> 420 = 420.75-120*(2/(1.6*866.6667)+5/(1.2*866.6667)).

FAQ

What is Outer Surface Temperature of Composite Wall of 2 Layers for Conduction?
The Outer Surface Temperature of Composite Wall of 2 Layers for Conduction formula is defined as the temperature at the outer surface of the composite wall for a given rate of heat flow, inner surface temperature, length/thickness of the walls, area for heat transfer, and thermal conductivities and is represented as To2 = Ti2-Ql2*(L1/(k1*Aw2)+L2/(k2*Aw2)) or Outer Surface Temperature of 2 Layer = Inner Surface Temperature 2 layer wall-Heat Flow Rate 2 Layer*(Length 1/(Thermal Conductivity 1*Area of 2 Layer Wall)+Length 2/(Thermal Conductivity 2*Area of 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), 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, Length 1 is the length of the first body, Thermal Conductivity 1 is the thermal conductivity of the first body, 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, Length 2 is the length of the second body/object/section & Thermal Conductivity 2 is the thermal conductivity of the second body.
How to calculate Outer Surface Temperature of Composite Wall of 2 Layers for Conduction?
The Outer Surface Temperature of Composite Wall of 2 Layers for Conduction formula is defined as the temperature at the outer surface of the composite wall for a given rate of heat flow, inner surface temperature, length/thickness of the walls, area for heat transfer, and thermal conductivities is calculated using Outer Surface Temperature of 2 Layer = Inner Surface Temperature 2 layer wall-Heat Flow Rate 2 Layer*(Length 1/(Thermal Conductivity 1*Area of 2 Layer Wall)+Length 2/(Thermal Conductivity 2*Area of 2 Layer Wall)). To calculate Outer Surface Temperature of Composite Wall of 2 Layers for Conduction, you need Inner Surface Temperature 2 layer wall (Ti2), Heat Flow Rate 2 Layer (Ql2), Length 1 (L1), Thermal Conductivity 1 (k1), Area of 2 Layer Wall (Aw2), Length 2 (L2) & Thermal Conductivity 2 (k2). With our tool, you need to enter the respective value for Inner Surface Temperature 2 layer wall, Heat Flow Rate 2 Layer, Length 1, Thermal Conductivity 1, Area of 2 Layer Wall, Length 2 & Thermal Conductivity 2 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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