FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

Heat Transfer Formula

Fx Copy

LaTeX Copy

Heat Flow Rate can be referred as the flow of thermal energy through a body per unit time. Check FAQs

Q h = \frac{T vd}{R th}

Q_h - Heat Flow Rate?T_vd - Thermal Potential Difference?R_th - Thermal Resistance?

Heat Transfer Example

With values

With units

Only example

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

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

Here is how the Heat Transfer equation looks like.

20.6 = \frac{103}{5}

20.6W = \frac{103K}{5K/W}

20.6 = \frac{103}{5}

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Engineering » Category

Mechanical » Category

Thermodynamics » fx Heat Transfer

Heat Transfer Solution

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

FIRST Step Consider the formula

Q h = \frac{T vd}{R th}

Next Step Substitute values of Variables

∴

Q h = \frac{103K}{5K/W}

Next Step Prepare to Evaluate

∴

Q h = \frac{103}{5}

LAST Step Evaluate

∴

Q h = 20.6W

Heat Transfer Formula Elements

Variables

Heat Flow Rate

Heat Flow Rate can be referred as the flow of thermal energy through a body per unit time.

Symbol: Q_h

Measurement: PowerUnit: W

Note: Value can be positive or negative.

Formulas to find Heat Flow Rate

Thermal Potential Difference

Thermal potential difference is the difference in electric potential between two points in an electric field(T2-T1).

Symbol: T_vd

Measurement: TemperatureUnit: K

Note: Value can be positive or negative.

Formulas to find Thermal Potential Difference

Thermal Resistance

Thermal resistance is a heat property and a measurement of a temperature difference by which an object or material resists a heat flow.

Symbol: R_th

Measurement: Thermal ResistanceUnit: K/W

Note: Value can be positive or negative.

Formulas to find Thermal Resistance

Other formulas in Conduction, Convection and Radiation category

Go Newton's Law of Cooling

q = h t \cdot (T w - T f)

Go Heat Flux

q = k o \cdot \frac{T}{l}

Go Heat Transfer According to Fourier's Law

Q c = - (k \cdot A s \cdot \frac{ΔT}{L})

Go One Dimensional Heat Flux

q = - \frac{k o}{t} \cdot (T w2 - T w1)

How to Evaluate Heat Transfer?

Heat Transfer evaluator uses Heat Flow Rate = Thermal Potential Difference/Thermal Resistance to evaluate the Heat Flow Rate, Heat Transfer, any or all of several kinds of phenomena, considered as mechanisms, that convey energy and entropy from one location to another. Heat Flow Rate is denoted by Q_h symbol.

How to evaluate Heat Transfer using this online evaluator? To use this online evaluator for Heat Transfer, enter Thermal Potential Difference (T_vd) & Thermal Resistance (R_th) and hit the calculate button.

FAQs on Heat Transfer

What is the formula to find Heat Transfer?

The formula of Heat Transfer is expressed as Heat Flow Rate = Thermal Potential Difference/Thermal Resistance. Here is an example- 20.6 = 103/5.

How to calculate Heat Transfer?

With Thermal Potential Difference (T_vd) & Thermal Resistance (R_th) we can find Heat Transfer using the formula - Heat Flow Rate = Thermal Potential Difference/Thermal Resistance.

Can the Heat Transfer be negative?

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

Which unit is used to measure Heat Transfer?

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

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit

Heat Transfer Formula

Heat Transfer Example

Heat Transfer Solution

Heat Transfer Formula Elements

Other formulas in Conduction, Convection and Radiation category

How to Evaluate Heat Transfer?

FAQs on Heat Transfer

Variable Name