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Heat Transfer through Plane Wall or Surface Formula

GoRate of Convective Heat Transfer Formula

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Heat Flow Rate 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. Check FAQs

q = - k 1 \cdot A c \cdot \frac{t o - t i}{w}

q - Heat Flow Rate?k₁ - Thermal Conductivity of Heat?A_c - Cross Sectional Area?t_o - Outside Temperature?t_i - Inside Temperature?w - Width of Plane Surface?

Heat Transfer through Plane Wall or Surface Example

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Here is how the Heat Transfer through Plane Wall or Surface equation looks like with Values.

Here is how the Heat Transfer through Plane Wall or Surface equation looks like with Units.

Here is how the Heat Transfer through Plane Wall or Surface equation looks like.

799.8571 = - 10.18 \cdot 11 \cdot \frac{321 - 371}{7}

799.8571W = - 10.18W/(m*K) \cdot 11m² \cdot \frac{321K - 371K}{7m}

799.8571 = - 10.18 \cdot 11 \cdot \frac{321 - 371}{7}

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Heat Transfer through Plane Wall or Surface Solution

Follow our step by step solution on how to calculate Heat Transfer through Plane Wall or Surface?

FIRST Step Consider the formula

q = - k 1 \cdot A c \cdot \frac{t o - t i}{w}

Next Step Substitute values of Variables

∴

q = - 10.18W/(m*K) \cdot 11m² \cdot \frac{321K - 371K}{7m}

Next Step Prepare to Evaluate

∴

q = - 10.18 \cdot 11 \cdot \frac{321 - 371}{7}

Next Step Evaluate

∴

q = 799.857142857143W

LAST Step Rounding Answer

∴

q = 799.8571W

Heat Transfer through Plane Wall or Surface Formula Elements

Variables

Heat Flow Rate

Heat Flow Rate 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

Measurement: PowerUnit: W

Note: Value can be positive or negative.

Formulas to find Heat Flow Rate

Thermal Conductivity of Heat

Thermal Conductivity of Heat is the amount of heat flows per unit time through a unit area with a temperature gradient of one degree per unit distance.

Symbol: k₁

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

Note: Value should be greater than 0.

Formulas to find Thermal Conductivity of Heat

Cross Sectional Area

Cross sectional area is the area of a two-dimensional shape that is obtained when a three dimensional shape is sliced perpendicular to some specified axis at a point.

Symbol: A_c

Measurement: AreaUnit: m²

Note: Value should be greater than 0.

Formulas to find Cross Sectional Area

Outside Temperature

Outside Temperature is the temperature of air present outside.

Symbol: t_o

Measurement: TemperatureUnit: K

Note: Value can be positive or negative.

Formulas to find Outside Temperature

Inside Temperature

Inside Temperature is the temperature of air present inside.

Symbol: t_i

Measurement: TemperatureUnit: K

Note: Value can be positive or negative.

Formulas to find Inside Temperature

Width of Plane Surface

Width of Plane Surface is the measurement or extent of plane surface from side to side.

Symbol: w

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Width of Plane Surface

Other Formulas to find Heat Flow Rate

Go Rate of Convective Heat Transfer

q = h transfer \cdot A expo \cdot (T w - T a)

Other formulas in Basics of Modes of Heat Transfer category

Go Total Emissive Power of Radiating Body

E b = (ε \cdot {(T e)}^{4}) \cdot [Stefan-BoltZ]

Go Radial Heat Flowing through Cylinder

Q = k 1 \cdot 2 \cdot π \cdot ΔT \cdot \frac{l}{\ln (\frac{r outer}{r inner})}

Go Radiative Heat Transfer

Q = [Stefan-BoltZ] \cdot SA Body \cdot F \cdot ({T 1}^{4} - {T 2}^{4})

Go Thermal Diffusivity

α = \frac{K cond}{ρ \cdot C o}

How to Evaluate Heat Transfer through Plane Wall or Surface?

Heat Transfer through Plane Wall or Surface evaluator uses Heat Flow Rate = -Thermal Conductivity of Heat*Cross Sectional Area*(Outside Temperature-Inside Temperature)/Width of Plane Surface to evaluate the Heat Flow Rate, Heat Transfer through Plane Wall or Surface gives the rate at which heat flows through the wall or surface for given temperature and material conditions. Heat Flow Rate is denoted by q symbol.

How to evaluate Heat Transfer through Plane Wall or Surface using this online evaluator? To use this online evaluator for Heat Transfer through Plane Wall or Surface, enter Thermal Conductivity of Heat (k₁), Cross Sectional Area (A_c), Outside Temperature (t_o), Inside Temperature (t_i) & Width of Plane Surface (w) and hit the calculate button.

FAQs on Heat Transfer through Plane Wall or Surface

What is the formula to find Heat Transfer through Plane Wall or Surface?

The formula of Heat Transfer through Plane Wall or Surface is expressed as Heat Flow Rate = -Thermal Conductivity of Heat*Cross Sectional Area*(Outside Temperature-Inside Temperature)/Width of Plane Surface. Here is an example- 799.8571 = -10.18*11*(321-371)/7.

How to calculate Heat Transfer through Plane Wall or Surface?

With Thermal Conductivity of Heat (k₁), Cross Sectional Area (A_c), Outside Temperature (t_o), Inside Temperature (t_i) & Width of Plane Surface (w) we can find Heat Transfer through Plane Wall or Surface using the formula - Heat Flow Rate = -Thermal Conductivity of Heat*Cross Sectional Area*(Outside Temperature-Inside Temperature)/Width of Plane Surface.

What are the other ways to Calculate Heat Flow Rate?

Here are the different ways to Calculate Heat Flow Rate-

Heat Flow Rate=Heat Transfer Coefficient*Exposed Surface Conv Area*(Surface Temperature-Ambient Air Temperature)

Can the Heat Transfer through Plane Wall or Surface be negative?

Yes, the Heat Transfer through Plane Wall or Surface, measured in Power can be negative.

Which unit is used to measure Heat Transfer through Plane Wall or Surface?

Heat Transfer through Plane Wall or Surface is usually measured using the Watt[W] for Power. Kilowatt[W], Milliwatt[W], Microwatt[W] are the few other units in which Heat Transfer through Plane Wall or Surface can be measured.

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Heat Transfer through Plane Wall or Surface Formula

​GoRate of Convective Heat Transfer Formula

Heat Transfer through Plane Wall or Surface Example

Heat Transfer through Plane Wall or Surface Solution

Heat Transfer through Plane Wall or Surface Formula Elements

Other Formulas to find Heat Flow Rate

Other formulas in Basics of Modes of Heat Transfer category

How to Evaluate Heat Transfer through Plane Wall or Surface?

FAQs on Heat Transfer through Plane Wall or Surface

Variable Name

GoRate of Convective Heat Transfer Formula