Heat Flux in Heat Transfer Formulas

The Heat Flux is the rate of thermal energy transfer per unit area, indicating how much heat is being transferred through a surface in a given time. And is denoted by q. Heat Flux is usually measured using the Watt per Square Meter for Heat Flux Density. Note that the value of Heat Flux is always negative.

Formulas to find Heat Flux in Heat Transfer

fxConvective Processes Heat Transfer CoefficientGo

fxNewton's Law of CoolingGo

fxOne Dimensional Heat FluxGo

List of variables in Heat Transfer formulas

fx Heat Transfer Coefficient Go

fx Surface Temperature Go

fx Recovery Temperature Go

fx Temperature of Characteristic Fluid Go

fx Thermal Conductivity of Fin Go

fx Wall Thickness Go

fx Temperature of Wall 2 Go

fx Temperature of Wall 1 Go

FAQ

What is the Heat Flux?

The Heat Flux is the rate of thermal energy transfer per unit area, indicating how much heat is being transferred through a surface in a given time. Heat Flux is usually measured using the Watt per Square Meter for Heat Flux Density. Note that the value of Heat Flux is always negative.

Can the Heat Flux be negative?

Yes, the Heat Flux, measured in Heat Flux Density can be negative.

What unit is used to measure Heat Flux?

Heat Flux is usually measured using the Watt per Square Meter[W/m²] for Heat Flux Density. Kilowatt per Square Meter[W/m²], Watt per Square Centimeter[W/m²], Watt per Square Inch[W/m²] are the few other units in which Heat Flux can be measured.

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