Excess Temperature in Boiling and Condensation Formulas

Excess Temperature is defined as the temperature difference between heat source and saturation temperature of the fluid. And is denoted by ΔT_x. Excess Temperature is usually measured using the Degree Celsius for Temperature Difference. Note that the value of Excess Temperature is always positive.

Boiling and Condensation formulas that make use of Excess Temperature

fxHeat Flux in Fully Developed Boiling State for Pressure upto 0.7 MegapascalGo

fxHeat Flux in Fully Developed Boiling State for Higher PressuresGo

fxHeat Transfer Coefficient for Forced Convection Local Boiling Inside Vertical TubesGo

FAQ

What is the Excess Temperature?

Excess Temperature is defined as the temperature difference between heat source and saturation temperature of the fluid. Excess Temperature is usually measured using the Degree Celsius for Temperature Difference. Note that the value of Excess Temperature is always positive.

Can the Excess Temperature be negative?

No, the Excess Temperature, measured in Temperature Difference cannot be negative.

What unit is used to measure Excess Temperature?

Excess Temperature is usually measured using the Degree Celsius[°C] for Temperature Difference. Kelvin[°C], Degree Centigrade[°C], Degree Fahrenheit[°C] are the few other units in which Excess Temperature can be measured.

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