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Rate of Convective Heat Transfer Formula

GoHeat Transfer through Plane Wall or Surface 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 = h transfer \cdot A expo \cdot (T w - T a)

q - Heat Flow Rate?h_transfer - Heat Transfer Coefficient?A_expo - Exposed Surface Conv Area?T_w - Surface Temperature?T_a - Ambient Air Temperature?

Rate of Convective Heat Transfer Example

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Here is how the Rate of Convective Heat Transfer equation looks like with Values.

Here is how the Rate of Convective Heat Transfer equation looks like with Units.

Here is how the Rate of Convective Heat Transfer equation looks like.

732.6 = 13.2 \cdot 11.1 \cdot (305 - 300)

732.6W = 13.2W/m²*K \cdot 11.1m² \cdot (305K - 300K)

732.6 = 13.2 \cdot 11.1 \cdot (305 - 300)

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Rate of Convective Heat Transfer Solution

Follow our step by step solution on how to calculate Rate of Convective Heat Transfer?

FIRST Step Consider the formula

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

Next Step Substitute values of Variables

∴

q = 13.2W/m²*K \cdot 11.1m² \cdot (305K - 300K)

Next Step Prepare to Evaluate

∴

q = 13.2 \cdot 11.1 \cdot (305 - 300)

LAST Step Evaluate

∴

q = 732.6W

Rate of Convective Heat Transfer 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

Heat Transfer Coefficient

The Heat Transfer Coefficient is the heat transferred per unit area per kelvin. Thus area is included in the equation as it represents the area over which the transfer of heat takes place.

Symbol: h_transfer

Measurement: Heat Transfer CoefficientUnit: W/m²*K

Note: Value can be positive or negative.

Formulas to find Heat Transfer Coefficient

Exposed Surface Conv Area

Exposed Surface Conv Area is defined as the area that is exposed to the heat flow.

Symbol: A_expo

Measurement: AreaUnit: m²

Note: Value should be greater than 0.

Formulas to find Exposed Surface Conv Area

Surface Temperature

Surface Temperature is the temperature at or near a surface. Specifically, it may refer to as Surface air temperature, the temperature of the air near the surface of the earth.

Symbol: T_w

Measurement: TemperatureUnit: K

Note: Value can be positive or negative.

Formulas to find Surface Temperature

Ambient Air Temperature

Ambient Air Temperature is the temperature where the ramming process starts.

Symbol: T_a

Measurement: TemperatureUnit: K

Note: Value should be greater than 0.

Formulas to find Ambient Air Temperature

Other Formulas to find Heat Flow Rate

Go Heat Transfer through Plane Wall or Surface

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

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 Rate of Convective Heat Transfer?

Rate of Convective Heat Transfer evaluator uses Heat Flow Rate = Heat Transfer Coefficient*Exposed Surface Conv Area*(Surface Temperature-Ambient Air Temperature) to evaluate the Heat Flow Rate, The Rate of Convective Heat Transfer is the transfer of heat from one place to another due to the movement of fluid. It involves the combined processes of conduction (heat diffusion) and advection (heat transfer by bulk fluid flow). Heat Flow Rate is denoted by q symbol.

How to evaluate Rate of Convective Heat Transfer using this online evaluator? To use this online evaluator for Rate of Convective Heat Transfer, enter Heat Transfer Coefficient (h_transfer), Exposed Surface Conv Area (A_expo), Surface Temperature (T_w) & Ambient Air Temperature (T_a) and hit the calculate button.

FAQs on Rate of Convective Heat Transfer

What is the formula to find Rate of Convective Heat Transfer?

The formula of Rate of Convective Heat Transfer is expressed as Heat Flow Rate = Heat Transfer Coefficient*Exposed Surface Conv Area*(Surface Temperature-Ambient Air Temperature). Here is an example- 732.6 = 13.2*11.1*(305-300).

How to calculate Rate of Convective Heat Transfer?

With Heat Transfer Coefficient (h_transfer), Exposed Surface Conv Area (A_expo), Surface Temperature (T_w) & Ambient Air Temperature (T_a) we can find Rate of Convective Heat Transfer using the formula - Heat Flow Rate = Heat Transfer Coefficient*Exposed Surface Conv Area*(Surface Temperature-Ambient Air Temperature).

What are the other ways to Calculate Heat Flow Rate?

Here are the different ways to Calculate Heat Flow Rate-

Heat Flow Rate=-Thermal Conductivity of Heat*Cross Sectional Area*(Outside Temperature-Inside Temperature)/Width of Plane Surface

Can the Rate of Convective Heat Transfer be negative?

Yes, the Rate of Convective Heat Transfer, measured in Power can be negative.

Which unit is used to measure Rate of Convective Heat Transfer?

Rate of Convective Heat Transfer is usually measured using the Watt[W] for Power. Kilowatt[W], Milliwatt[W], Microwatt[W] are the few other units in which Rate of Convective Heat Transfer can be measured.

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Rate of Convective Heat Transfer Formula

​GoHeat Transfer through Plane Wall or Surface Formula

Rate of Convective Heat Transfer Example

Rate of Convective Heat Transfer Solution

Rate of Convective Heat Transfer Formula Elements

Other Formulas to find Heat Flow Rate

Other formulas in Basics of Modes of Heat Transfer category

How to Evaluate Rate of Convective Heat Transfer?

FAQs on Rate of Convective Heat Transfer

Variable Name

GoHeat Transfer through Plane Wall or Surface Formula