Reynolds Number using Average Heat Transfer Coefficient for Condensate Film Calculator

✖Average Heat Transfer Coefficient is equal to the heat flow (Q) across the heat-transfer surface divided by the average temperature (Δt) and the area of the heat-transfer surface (A).ⓘ Average Heat Transfer Coefficient [h ̅]			+10% -10%
✖Length of Plate is the distance between two extreme points along one side of the base plate.ⓘ Length of Plate [L]			+10% -10%
✖Saturation temperature is the temperature at which a given liquid and its vapour or a given solid and its vapour can co-exist in equilibrium, at a given pressure.ⓘ Saturation Temperature [T_Sat]			+10% -10%
✖Plate Surface Temperature is the temperature at the surface of the plate.ⓘ Plate Surface Temperature [T_w]			+10% -10%
✖Latent Heat of Vaporization is defined as the heat required to change one mole of liquid at its boiling point under standard atmospheric pressure.ⓘ Latent Heat of Vaporization [h_fg]			+10% -10%
✖Viscosity of Film is a measure of its resistance to deformation at a given rate.ⓘ Viscosity of Film [μ_f]			+10% -10%

✖Reynolds Number of Film is the ratio of Inertial force to the viscous force.ⓘ Reynolds Number using Average Heat Transfer Coefficient for Condensate Film [Re_f]

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Formula

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Reynolds Number using Average Heat Transfer Coefficient for Condensate Film

Formula

`"Re"_{"f"} = ((4*"h ̅"*"L"* ("T"_{"Sat"}-"T"_{"w"}))/ ("h"_{"fg"}*"μ"_{"f"}))`

Example

`"132.7571"=((4*"115W/m²*K"*"65m"* ("373K"-"82K"))/ ("2260000J/kg"*"0.029N*s/m²"))`

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Reynolds Number using Average Heat Transfer Coefficient for Condensate Film Solution

STEP 0: Pre-Calculation Summary

Formula Used

Reynolds Number of Film = ((4*Average Heat Transfer Coefficient*Length of Plate* (Saturation Temperature-Plate Surface Temperature))/ (Latent Heat of Vaporization*Viscosity of Film))
Re_f = ((4*h ̅*L* (T_Sat-T_w))/ (h_fg*μ_f))
This formula uses 7 Variables

Variables Used

Reynolds Number of Film - Reynolds Number of Film is the ratio of Inertial force to the viscous force.
Average Heat Transfer Coefficient - (Measured in Watt per Square Meter per Kelvin) - Average Heat Transfer Coefficient is equal to the heat flow (Q) across the heat-transfer surface divided by the average temperature (Δt) and the area of the heat-transfer surface (A).
Length of Plate - (Measured in Meter) - Length of Plate is the distance between two extreme points along one side of the base plate.
Saturation Temperature - (Measured in Kelvin) - Saturation temperature is the temperature at which a given liquid and its vapour or a given solid and its vapour can co-exist in equilibrium, at a given pressure.
Plate Surface Temperature - (Measured in Kelvin) - Plate Surface Temperature is the temperature at the surface of the plate.
Latent Heat of Vaporization - (Measured in Joule per Kilogram) - Latent Heat of Vaporization is defined as the heat required to change one mole of liquid at its boiling point under standard atmospheric pressure.
Viscosity of Film - (Measured in Pascal Second) - Viscosity of Film is a measure of its resistance to deformation at a given rate.

STEP 1: Convert Input(s) to Base Unit

Average Heat Transfer Coefficient: 115 Watt per Square Meter per Kelvin --> 115 Watt per Square Meter per Kelvin No Conversion Required
Length of Plate: 65 Meter --> 65 Meter No Conversion Required
Saturation Temperature: 373 Kelvin --> 373 Kelvin No Conversion Required
Plate Surface Temperature: 82 Kelvin --> 82 Kelvin No Conversion Required
Latent Heat of Vaporization: 2260000 Joule per Kilogram --> 2260000 Joule per Kilogram No Conversion Required
Viscosity of Film: 0.029 Newton Second per Square Meter --> 0.029 Pascal Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Re_f = ((4*h ̅*L* (T_Sat-T_w))/ (h_fg*μ_f)) --> ((4*115*65* (373-82))/ (2260000*0.029))

Evaluating ... ...

Re_f = 132.757094903875

STEP 3: Convert Result to Output's Unit

132.757094903875 --> No Conversion Required

FINAL ANSWER

132.757094903875 ≈ 132.7571 <-- Reynolds Number of Film

(Calculation completed in 00.004 seconds)

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< 22 Condensation Calculators

Average Heat Transfer Coefficient for Condensation Inside Horizontal Tubes for Low Vapor Velocity

Go Average Heat Transfer Coefficient = 0.555*((Density of Liquid Film* (Density of Liquid Film-Density of Vapor)*[g]*Corrected Latent Heat of Vaporization* (Thermal Conductivity of Film Condensate^3))/(Length of Plate*Diameter of Tube* (Saturation Temperature-Plate Surface Temperature)))^(0.25)

Average Heat Transfer Coefficient for Laminar Film Condensation on Outside of Sphere

Go Average Heat Transfer Coefficient = 0.815*((Density of Liquid Film* (Density of Liquid Film-Density of Vapor)*[g]*Latent Heat of Vaporization* (Thermal Conductivity of Film Condensate^3))/(Diameter of Sphere*Viscosity of Film* (Saturation Temperature-Plate Surface Temperature)))^(0.25)

Average Heat Transfer Coefficient for Laminar Film Condensation of Tube

Go Average Heat Transfer Coefficient = 0.725*((Density of Liquid Film* (Density of Liquid Film-Density of Vapor)*[g]*Latent Heat of Vaporization* (Thermal Conductivity of Film Condensate^3))/(Diameter of Tube*Viscosity of Film* (Saturation Temperature-Plate Surface Temperature)))^(0.25)

Average Heat Transfer Coefficient for Vapor Condensing on Plate

Go Average Heat Transfer Coefficient = 0.943*((Density of Liquid Film* (Density of Liquid Film-Density of Vapor)*[g]*Latent Heat of Vaporization* (Thermal Conductivity of Film Condensate^3))/(Length of Plate*Viscosity of Film* (Saturation Temperature-Plate Surface Temperature)))^(0.25)

Average Heat Transfer Coefficient for Film Condensation on Plate for Wavy Laminar Flow

Go Average Heat Transfer Coefficient = 1.13*((Density of Liquid Film* (Density of Liquid Film-Density of Vapor)*[g]*Latent Heat of Vaporization* (Thermal Conductivity of Film Condensate^3))/(Length of Plate*Viscosity of Film* (Saturation Temperature-Plate Surface Temperature)))^(0.25)

Film Thickness in Film Condensation

Go Film Thickness = ((4*Viscosity of Film*Thermal Conductivity*Height of Film*(Saturation Temperature-Plate Surface Temperature))/([g]*Latent Heat of Vaporization*(Density of Liquid)*(Density of Liquid-Density of Vapor)))^(0.25)

Condensation Number given Reynolds Number

Go Condensation Number = ((Constant for Condensation Number)^(4/3))* (((4*sin(Inclination Angle)*((Cross Sectional Area of Flow/Wetted Perimeter)))/(Length of Plate))^(1/3))* ((Reynolds Number of Film)^(-1/3))

Condensation Number

Go Condensation Number = (Average Heat Transfer Coefficient)* ((((Viscosity of Film)^2)/((Thermal Conductivity^3)*(Density of Liquid Film)*(Density of Liquid Film-Density of Vapor)*[g]))^(1/3))

Reynolds Number using Average Heat Transfer Coefficient for Condensate Film

Go Reynolds Number of Film = ((4*Average Heat Transfer Coefficient*Length of Plate* (Saturation Temperature-Plate Surface Temperature))/ (Latent Heat of Vaporization*Viscosity of Film))

Film Thickness given Mass Flow of Condensate

Go Film Thickness = ((3*Viscosity of Film*Mass Flow Rate)/(Density of Liquid*(Density of Liquid-Density of Vapor)*[g]))^(1/3)

Average Heat Transfer Coefficient given Reynolds Number and Properties at Film Temperature

Go Average Heat Transfer Coefficient = (0.026*(Prandtl Number at Film Temperature^(1/3))*(Reynolds Number for Mixing^(0.8))*(Thermal Conductivity at Film Temperature))/Diameter of Tube

Mass Flow of Condensate through any X Position of Film

Go Mass Flow Rate = (Density of Liquid*(Density of Liquid-Density of Vapor)*[g]*(Film Thickness^3))/(3*Viscosity of Film)

Viscosity of Film given Mass Flow of Condensate

Go Viscosity of Film = (Density of Liquid*(Density of Liquid-Density of Vapor)*[g]*(Film Thickness^3))/(3*Mass Flow Rate)

Heat Transfer Coefficient for Condensation on Flat Plate for Nonlinear Temperature Profile in Film

Go Corrected Latent Heat of Vaporization = (Latent Heat of Vaporization+0.68*Specific Heat Capacity*(Saturation Temperature-Plate Surface Temperature))

Heat Transfer Rate for Condensation of Superheated Vapors

Go Heat Transfer = Average Heat Transfer Coefficient*Area of Plate*(Saturation Temperature for Superheated Vapor-Plate Surface Temperature)

Wetted Perimeter given Reynolds Number of Film

Go Wetted Perimeter = (4*Mass Flow of Condensate)/(Reynolds Number of Film*Viscosity of Fluid)

Reynolds Number for Condensate Film

Go Reynolds Number of Film = (4*Mass Flow of Condensate)/(Wetted Perimeter*Viscosity of Fluid)

Viscosity of Film given Reynolds Number of Film

Go Viscosity of Film = (4*Mass Flow of Condensate)/(Wetted Perimeter*Reynolds Number of Film)

Mass Flow Rate through Particular Section of Condensate Film given Reynolds Number of Film

Go Mass Flow of Condensate = (Reynolds Number of Film*Wetted Perimeter*Viscosity of Fluid)/4

Condensation Number when Turbulence is Encountered in Film

Go Condensation Number = 0.0077*((Reynolds Number of Film)^(0.4))

Condensation Number for Horizontal Cylinder

Go Condensation Number = 1.514*((Reynolds Number of Film)^(-1/3))

Condensation Number for Vertical Plate

Go Condensation Number = 1.47*((Reynolds Number of Film)^(-1/3))

Reynolds Number using Average Heat Transfer Coefficient for Condensate Film Formula

What is Heat Transfer?

Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy between physical systems. Heat transfer is classified into various mechanisms, such as thermal conduction, thermal convection, thermal radiation, and transfer of energy by phase changes.

Define Thermal Conductivity & Factors affecting it?

Thermal conductivity is defined as the ability of a substance to conduct heat. Factors Affecting The Thermal Conductivity are: Moisture, Density of material, Pressure, Temperature & Structure of material.

How to Calculate Reynolds Number using Average Heat Transfer Coefficient for Condensate Film?

Reynolds Number using Average Heat Transfer Coefficient for Condensate Film calculator uses Reynolds Number of Film = ((4*Average Heat Transfer Coefficient*Length of Plate* (Saturation Temperature-Plate Surface Temperature))/ (Latent Heat of Vaporization*Viscosity of Film)) to calculate the Reynolds Number of Film, The Reynolds Number using Average Heat Transfer coefficient for Condensate Film formula is defined as ratio of the product of [4, average HT coefficient , length of plate, difference of saturated temp and temp of plate ] to the product of [latent heat of vaporization and viscosity of film]. Reynolds Number of Film is denoted by Re_f symbol.

How to calculate Reynolds Number using Average Heat Transfer Coefficient for Condensate Film using this online calculator? To use this online calculator for Reynolds Number using Average Heat Transfer Coefficient for Condensate Film, enter Average Heat Transfer Coefficient (h ̅), Length of Plate (L), Saturation Temperature (T_Sat), Plate Surface Temperature (T_w), Latent Heat of Vaporization (h_fg) & Viscosity of Film (μ_f) and hit the calculate button. Here is how the Reynolds Number using Average Heat Transfer Coefficient for Condensate Film calculation can be explained with given input values -> 132.7571 = ((4*115*65* (373-82))/ (2260000*0.029)).

FAQ

What is Reynolds Number using Average Heat Transfer Coefficient for Condensate Film?

The Reynolds Number using Average Heat Transfer coefficient for Condensate Film formula is defined as ratio of the product of [4, average HT coefficient , length of plate, difference of saturated temp and temp of plate ] to the product of [latent heat of vaporization and viscosity of film] and is represented as Re_f = ((4*h ̅*L* (T_Sat-T_w))/ (h_fg*μ_f)) or Reynolds Number of Film = ((4*Average Heat Transfer Coefficient*Length of Plate* (Saturation Temperature-Plate Surface Temperature))/ (Latent Heat of Vaporization*Viscosity of Film)). Average Heat Transfer Coefficient is equal to the heat flow (Q) across the heat-transfer surface divided by the average temperature (Δt) and the area of the heat-transfer surface (A), Length of Plate is the distance between two extreme points along one side of the base plate, Saturation temperature is the temperature at which a given liquid and its vapour or a given solid and its vapour can co-exist in equilibrium, at a given pressure, Plate Surface Temperature is the temperature at the surface of the plate, Latent Heat of Vaporization is defined as the heat required to change one mole of liquid at its boiling point under standard atmospheric pressure & Viscosity of Film is a measure of its resistance to deformation at a given rate.

How to calculate Reynolds Number using Average Heat Transfer Coefficient for Condensate Film?

The Reynolds Number using Average Heat Transfer coefficient for Condensate Film formula is defined as ratio of the product of [4, average HT coefficient , length of plate, difference of saturated temp and temp of plate ] to the product of [latent heat of vaporization and viscosity of film] is calculated using Reynolds Number of Film = ((4*Average Heat Transfer Coefficient*Length of Plate* (Saturation Temperature-Plate Surface Temperature))/ (Latent Heat of Vaporization*Viscosity of Film)). To calculate Reynolds Number using Average Heat Transfer Coefficient for Condensate Film, you need Average Heat Transfer Coefficient (h ̅), Length of Plate (L), Saturation Temperature (T_Sat), Plate Surface Temperature (T_w), Latent Heat of Vaporization (h_fg) & Viscosity of Film (μ_f). With our tool, you need to enter the respective value for Average Heat Transfer Coefficient, Length of Plate, Saturation Temperature, Plate Surface Temperature, Latent Heat of Vaporization & Viscosity of Film 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 Reynolds Number of Film?

In this formula, Reynolds Number of Film uses Average Heat Transfer Coefficient, Length of Plate, Saturation Temperature, Plate Surface Temperature, Latent Heat of Vaporization & Viscosity of Film. We can use 1 other way(s) to calculate the same, which is/are as follows -

Reynolds Number of Film = (4*Mass Flow of Condensate)/(Wetted Perimeter*Viscosity of Fluid)

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