Overall Heat Transfer Coefficient in Heat Exchanger Formulas

Overall heat transfer coefficient is the overall convective heat transfer between a fluid medium (a fluid) and the surface (wall) flowed over by the fluid. And is denoted by U_overall. Overall Heat Transfer Coefficient is usually measured using the Watt per Square Meter per Kelvin for Heat Transfer Coefficient. Note that the value of Overall Heat Transfer Coefficient is always positive.

Formulas to find Overall Heat Transfer Coefficient in Heat Exchanger

fxOverall heat transfer coefficient given convection coefficientGo

fxOverall heat transfer coefficientGo

Heat Exchanger formulas that make use of Overall Heat Transfer Coefficient

fxTube inside area required for heat exchangeGo

fxHeat flow requiredGo

fxLogarithmic mean of temperature differenceGo

List of variables in Heat Exchanger formulas

fx Convection coefficient based on inside area Go

fx Effective Convection Coefficient on inside Go

fx Heat Flow Rate Go

fx Area Go

fx Logarithmic Mean Temperature Difference Go

FAQ

What is the Overall Heat Transfer Coefficient?

Overall heat transfer coefficient is the overall convective heat transfer between a fluid medium (a fluid) and the surface (wall) flowed over by the fluid. Overall Heat Transfer Coefficient is usually measured using the Watt per Square Meter per Kelvin for Heat Transfer Coefficient. Note that the value of Overall Heat Transfer Coefficient is always positive.

Can the Overall Heat Transfer Coefficient be negative?

No, the Overall Heat Transfer Coefficient, measured in Heat Transfer Coefficient cannot be negative.

What unit is used to measure Overall Heat Transfer Coefficient?

Overall Heat Transfer Coefficient is usually measured using the Watt per Square Meter per Kelvin[W/m²*K] for Heat Transfer Coefficient. Watt per Square Meter per Celcius[W/m²*K], Joule per Second per Square Meter per Kelvin[W/m²*K], Kilocalorie (IT) per Hour per Square Foot per Celcius[W/m²*K] are the few other units in which Overall Heat Transfer Coefficient can be measured.

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