Heat transfer coefficient by convection for stable film boiling Calculator

✖Thermal Conductivity of Vapor is defined as the transport of energy due to random molecular motion across a temperature gradient.ⓘ Thermal Conductivity of Vapor [k_v]			+10% -10%
✖The Density of Vapour is the mass of a unit volume of a material substance.ⓘ Density of Vapour [ρ_v]			+10% -10%
✖Density of Liquid is mass of a unit volume of a material substance.ⓘ Density of Liquid [ρ_l]			+10% -10%
✖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.ⓘ Change in Enthalpy of Vaporization [∆H]			+10% -10%
✖Specific Heat of Vapour is the amount of heat per unit mass required to raise the temperature by one degree Celsius.ⓘ Specific Heat of Vapour [C_v]			+10% -10%
✖Excess Temperature is defined as the temperature difference between heat source and saturation temperature of the fluid.ⓘ Excess Temperature [ΔT]			+10% -10%
✖Dynamic Viscosity of Vapour is the resistance to movement of one layer of a fluid over another.ⓘ Dynamic Viscosity of Vapour [μ_v]			+10% -10%
✖Diameter is a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.ⓘ Diameter [D]			+10% -10%

✖Heat Transfer Coefficient by Convection is the heat transferred per unit area per kelvin.ⓘ Heat transfer coefficient by convection for stable film boiling [h_c]

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Heat transfer coefficient by convection for stable film boiling Solution

STEP 0: Pre-Calculation Summary

Formula Used

Heat Transfer Coefficient by Convection = 0.62*((Thermal Conductivity of Vapor^3*Density of Vapour*[g]*(Density of Liquid-Density of Vapour)*(Change in Enthalpy of Vaporization+(0.68*Specific Heat of Vapour)*Excess Temperature))/(Dynamic Viscosity of Vapour*Diameter*Excess Temperature))^0.25
h_c = 0.62*((k_v^3*ρ_v*[g]*(ρ_l-ρ_v)*(∆H+(0.68*C_v)*ΔT))/(μ_v*D*ΔT))^0.25
This formula uses 1 Constants, 9 Variables

Constants Used

[g] - Gravitational acceleration on Earth Value Taken As 9.80665

Variables Used

Heat Transfer Coefficient by Convection - (Measured in Watt per Square Meter per Kelvin) - Heat Transfer Coefficient by Convection is the heat transferred per unit area per kelvin.
Thermal Conductivity of Vapor - (Measured in Watt per Meter per K) - Thermal Conductivity of Vapor is defined as the transport of energy due to random molecular motion across a temperature gradient.
Density of Vapour - (Measured in Kilogram per Cubic Meter) - The Density of Vapour is the mass of a unit volume of a material substance.
Density of Liquid - (Measured in Kilogram per Cubic Meter) - Density of Liquid is mass of a unit volume of a material substance.
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.
Specific Heat of Vapour - (Measured in Joule per Kilogram per K) - Specific Heat of Vapour is the amount of heat per unit mass required to raise the temperature by one degree Celsius.
Excess Temperature - (Measured in Kelvin) - Excess Temperature is defined as the temperature difference between heat source and saturation temperature of the fluid.
Dynamic Viscosity of Vapour - (Measured in Pascal Second) - Dynamic Viscosity of Vapour is the resistance to movement of one layer of a fluid over another.
Diameter - (Measured in Meter) - Diameter is a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.

STEP 1: Convert Input(s) to Base Unit

Thermal Conductivity of Vapor: 11.524 Watt per Meter per K --> 11.524 Watt per Meter per K No Conversion Required
Density of Vapour: 0.5 Kilogram per Cubic Meter --> 0.5 Kilogram per Cubic Meter No Conversion Required
Density of Liquid: 4 Kilogram per Cubic Meter --> 4 Kilogram per Cubic Meter No Conversion Required
Change in Enthalpy of Vaporization: 500 Joule Per Mole --> 500 Joule Per Mole No Conversion Required
Specific Heat of Vapour: 5 Joule per Kilogram per K --> 5 Joule per Kilogram per K No Conversion Required
Excess Temperature: 12 Kelvin --> 12 Kelvin No Conversion Required
Dynamic Viscosity of Vapour: 1000 Pascal Second --> 1000 Pascal Second No Conversion Required
Diameter: 100 Meter --> 100 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

h_c = 0.62*((k_v^3*ρ_v*[g]*(ρ_l-ρ_v)*(∆H+(0.68*C_v)*ΔT))/(μ_v*D*ΔT))^0.25 --> 0.62*((11.524^3*0.5*[g]*(4-0.5)*(500+(0.68*5)*12))/(1000*100*12))^0.25

Evaluating ... ...

h_c = 1.14999954094302

STEP 3: Convert Result to Output's Unit

1.14999954094302 Watt per Square Meter per Kelvin --> No Conversion Required

FINAL ANSWER

1.14999954094302 ≈ 1.15 Watt per Square Meter per Kelvin <-- Heat Transfer Coefficient by Convection

(Calculation completed in 00.004 seconds)

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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

Heat transfer coefficient by convection for stable film boiling Formula

LaTeX Go

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 Heat transfer coefficient by convection for stable film boiling?

Heat transfer coefficient by convection for stable film boiling calculator uses Heat Transfer Coefficient by Convection = 0.62*((Thermal Conductivity of Vapor^3*Density of Vapour*[g]*(Density of Liquid-Density of Vapour)*(Change in Enthalpy of Vaporization+(0.68*Specific Heat of Vapour)*Excess Temperature))/(Dynamic Viscosity of Vapour*Diameter*Excess Temperature))^0.25 to calculate the Heat Transfer Coefficient by Convection, Heat transfer coefficient by convection for stable film boiling is a measure of the rate of heat transfer from a solid surface to a fluid when a stable vapor layer (film) forms between them. In film boiling, heat is transferred through the vapor film by conduction and then by convection within the vapor and the surrounding fluid. Heat Transfer Coefficient by Convection is denoted by h_c symbol.

How to calculate Heat transfer coefficient by convection for stable film boiling using this online calculator? To use this online calculator for Heat transfer coefficient by convection for stable film boiling, enter Thermal Conductivity of Vapor (k_v), Density of Vapour (ρ_v), Density of Liquid (ρ_l), Change in Enthalpy of Vaporization (∆H), Specific Heat of Vapour (C_v), Excess Temperature (ΔT), Dynamic Viscosity of Vapour (μ_v) & Diameter (D) and hit the calculate button. Here is how the Heat transfer coefficient by convection for stable film boiling calculation can be explained with given input values -> 1.15 = 0.62*((11.524^3*0.5*[g]*(4-0.5)*(500+(0.68*5)*12))/(1000*100*12))^0.25.

FAQ

What is Heat transfer coefficient by convection for stable film boiling?

Heat transfer coefficient by convection for stable film boiling is a measure of the rate of heat transfer from a solid surface to a fluid when a stable vapor layer (film) forms between them. In film boiling, heat is transferred through the vapor film by conduction and then by convection within the vapor and the surrounding fluid and is represented as h_c = 0.62*((k_v^3*ρ_v*[g]*(ρ_l-ρ_v)*(∆H+(0.68*C_v)*ΔT))/(μ_v*D*ΔT))^0.25 or Heat Transfer Coefficient by Convection = 0.62*((Thermal Conductivity of Vapor^3*Density of Vapour*[g]*(Density of Liquid-Density of Vapour)*(Change in Enthalpy of Vaporization+(0.68*Specific Heat of Vapour)*Excess Temperature))/(Dynamic Viscosity of Vapour*Diameter*Excess Temperature))^0.25. Thermal Conductivity of Vapor is defined as the transport of energy due to random molecular motion across a temperature gradient, The Density of Vapour is the mass of a unit volume of a material substance, Density of Liquid is mass of a unit volume of a material substance, 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, Specific Heat of Vapour is the amount of heat per unit mass required to raise the temperature by one degree Celsius, Excess Temperature is defined as the temperature difference between heat source and saturation temperature of the fluid, Dynamic Viscosity of Vapour is the resistance to movement of one layer of a fluid over another & Diameter is a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.

How to calculate Heat transfer coefficient by convection for stable film boiling?

Heat transfer coefficient by convection for stable film boiling is a measure of the rate of heat transfer from a solid surface to a fluid when a stable vapor layer (film) forms between them. In film boiling, heat is transferred through the vapor film by conduction and then by convection within the vapor and the surrounding fluid is calculated using Heat Transfer Coefficient by Convection = 0.62*((Thermal Conductivity of Vapor^3*Density of Vapour*[g]*(Density of Liquid-Density of Vapour)*(Change in Enthalpy of Vaporization+(0.68*Specific Heat of Vapour)*Excess Temperature))/(Dynamic Viscosity of Vapour*Diameter*Excess Temperature))^0.25. To calculate Heat transfer coefficient by convection for stable film boiling, you need Thermal Conductivity of Vapor (k_v), Density of Vapour (ρ_v), Density of Liquid (ρ_l), Change in Enthalpy of Vaporization (∆H), Specific Heat of Vapour (C_v), Excess Temperature (ΔT), Dynamic Viscosity of Vapour (μ_v) & Diameter (D). With our tool, you need to enter the respective value for Thermal Conductivity of Vapor, Density of Vapour, Density of Liquid, Change in Enthalpy of Vaporization, Specific Heat of Vapour, Excess Temperature, Dynamic Viscosity of Vapour & Diameter and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Heat Transfer Coefficient by Convection?

In this formula, Heat Transfer Coefficient by Convection uses Thermal Conductivity of Vapor, Density of Vapour, Density of Liquid, Change in Enthalpy of Vaporization, Specific Heat of Vapour, Excess Temperature, Dynamic Viscosity of Vapour & Diameter. We can use 1 other way(s) to calculate the same, which is/are as follows -

Heat Transfer Coefficient by Convection = Heat Transfer Coefficient by Boiling-0.75*Heat Transfer Coefficient by Radiation

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