Critical heat flux to nucleate pool boiling Solution

STEP 0: Pre-Calculation Summary
Formula Used
Critical Heat Flux = 0.18*Change in Enthalpy of Vaporization*Density of Vapour*((Surface Tension*[g]*(Density of Liquid-Density of Vapour))/(Density of Vapour^2))^0.25
Qc = 0.18*∆H*ρv*((Y*[g]*(ρl-ρv))/(ρv^2))^0.25
This formula uses 1 Constants, 5 Variables
Constants Used
[g] - Gravitational acceleration on Earth Value Taken As 9.80665
Variables Used
Critical Heat Flux - (Measured in Watt per Square Meter) - Critical Heat Flux is the heat transfer rate per unit area normal to the direction of heat flow. It is denoted by the letter "q".
Change in Enthalpy of Vaporization - (Measured in Joule Per Mole) - Change in Enthalpy of Vaporization is the amount of energy (enthalpy) that must be added to a liquid substance to transform a quantity of that substance into a gas.
Density of Vapour - (Measured in Kilogram per Cubic Meter) - The Density of Vapour is the mass of a unit volume of a material substance.
Surface Tension - (Measured in Newton per Meter) - Surface Tension is the surface of a liquid that allows it to resist an external force, due to the cohesive nature of its molecules.
Density of Liquid - (Measured in Kilogram per Cubic Meter) - Density of Liquid is mass of a unit volume of a material substance.
STEP 1: Convert Input(s) to Base Unit
Change in Enthalpy of Vaporization: 500 Joule Per Mole --> 500 Joule Per Mole No Conversion Required
Density of Vapour: 0.5 Kilogram per Cubic Meter --> 0.5 Kilogram per Cubic Meter No Conversion Required
Surface Tension: 21.8 Newton per Meter --> 21.8 Newton per Meter No Conversion Required
Density of Liquid: 4 Kilogram per Cubic Meter --> 4 Kilogram per Cubic Meter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Qc = 0.18*∆H*ρv*((Y*[g]*(ρlv))/(ρv^2))^0.25 --> 0.18*500*0.5*((21.8*[g]*(4-0.5))/(0.5^2))^0.25
Evaluating ... ...
Qc = 332.842530370989
STEP 3: Convert Result to Output's Unit
332.842530370989 Watt per Square Meter --> No Conversion Required
FINAL ANSWER
332.842530370989 332.8425 Watt per Square Meter <-- Critical Heat Flux
(Calculation completed in 00.004 seconds)

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Shri Madhwa Vadiraja Institute of Technology and Management (SMVITM), Udupi
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University Institute of Technology RGPV (UIT - RGPV), Bhopal
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Boiling Calculators

Heat flux to nucleate pool boiling
​ LaTeX ​ Go Heat Flux = Dynamic Viscosity of Fluid*Change in Enthalpy of Vaporization*(([g]*(Density of Liquid-Density of Vapour))/(Surface Tension))^0.5*((Specific Heat of Liquid*Excess Temperature)/(Constant in Nucleate Boiling*Change in Enthalpy of Vaporization*(Prandtl Number)^1.7))^3.0
Enthalpy of evaporation to nucleate pool boiling
​ LaTeX ​ Go Change in Enthalpy of Vaporization = ((1/Heat Flux)*Dynamic Viscosity of Fluid*(([g]*(Density of Liquid-Density of Vapour))/(Surface Tension))^0.5*((Specific Heat of Liquid*Excess Temperature)/(Constant in Nucleate Boiling*(Prandtl Number)^1.7))^3)^0.5
Enthalpy of evaporation given critical heat flux
​ LaTeX ​ Go Change in Enthalpy of Vaporization = Critical Heat Flux/(0.18*Density of Vapour*((Surface Tension*[g]*(Density of Liquid-Density of Vapour))/(Density of Vapour^2))^0.25)
Critical heat flux to nucleate pool boiling
​ LaTeX ​ Go Critical Heat Flux = 0.18*Change in Enthalpy of Vaporization*Density of Vapour*((Surface Tension*[g]*(Density of Liquid-Density of Vapour))/(Density of Vapour^2))^0.25

Critical heat flux to nucleate pool boiling Formula

​LaTeX ​Go
Critical Heat Flux = 0.18*Change in Enthalpy of Vaporization*Density of Vapour*((Surface Tension*[g]*(Density of Liquid-Density of Vapour))/(Density of Vapour^2))^0.25
Qc = 0.18*∆H*ρv*((Y*[g]*(ρl-ρv))/(ρv^2))^0.25

What is boiling?

Boiling is the rapid vaporization of a liquid, which occurs when a liquid is heated to its boiling point, the temperature at which the vapour pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere.

How to Calculate Critical heat flux to nucleate pool boiling?

Critical heat flux to nucleate pool boiling calculator uses Critical Heat Flux = 0.18*Change in Enthalpy of Vaporization*Density of Vapour*((Surface Tension*[g]*(Density of Liquid-Density of Vapour))/(Density of Vapour^2))^0.25 to calculate the Critical Heat Flux, The Critical heat flux to nucleate pool boiling formula is defined as the amount of heat energy passing through a certain surface. Critical Heat Flux is denoted by Qc symbol.

How to calculate Critical heat flux to nucleate pool boiling using this online calculator? To use this online calculator for Critical heat flux to nucleate pool boiling, enter Change in Enthalpy of Vaporization (∆H), Density of Vapour v), Surface Tension (Y) & Density of Liquid l) and hit the calculate button. Here is how the Critical heat flux to nucleate pool boiling calculation can be explained with given input values -> 332.8425 = 0.18*500*0.5*((21.8*[g]*(4-0.5))/(0.5^2))^0.25.

FAQ

What is Critical heat flux to nucleate pool boiling?
The Critical heat flux to nucleate pool boiling formula is defined as the amount of heat energy passing through a certain surface and is represented as Qc = 0.18*∆H*ρv*((Y*[g]*(ρlv))/(ρv^2))^0.25 or Critical Heat Flux = 0.18*Change in Enthalpy of Vaporization*Density of Vapour*((Surface Tension*[g]*(Density of Liquid-Density of Vapour))/(Density of Vapour^2))^0.25. Change in Enthalpy of Vaporization is the amount of energy (enthalpy) that must be added to a liquid substance to transform a quantity of that substance into a gas, The Density of Vapour is the mass of a unit volume of a material substance, Surface Tension is the surface of a liquid that allows it to resist an external force, due to the cohesive nature of its molecules & Density of Liquid is mass of a unit volume of a material substance.
How to calculate Critical heat flux to nucleate pool boiling?
The Critical heat flux to nucleate pool boiling formula is defined as the amount of heat energy passing through a certain surface is calculated using Critical Heat Flux = 0.18*Change in Enthalpy of Vaporization*Density of Vapour*((Surface Tension*[g]*(Density of Liquid-Density of Vapour))/(Density of Vapour^2))^0.25. To calculate Critical heat flux to nucleate pool boiling, you need Change in Enthalpy of Vaporization (∆H), Density of Vapour v), Surface Tension (Y) & Density of Liquid l). With our tool, you need to enter the respective value for Change in Enthalpy of Vaporization, Density of Vapour, Surface Tension & Density of Liquid and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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