Heat Flux in Fully Developed Boiling State for Pressure upto 0.7 Megapascal Calculator

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✖The area is the amount of two-dimensional space taken up by an object.ⓘ Area [A]			+10% -10%
✖Excess Temperature is defined as the temperature difference between heat source and saturation temperature of the fluid.ⓘ Excess Temperature [ΔT_x]			+10% -10%

✖Rate of Heat Transfer is defined as the amount of heat transferred per unit time in the material.ⓘ Heat Flux in Fully Developed Boiling State for Pressure upto 0.7 Megapascal [q_rate]

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Formula

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Heat Flux in Fully Developed Boiling State for Pressure upto 0.7 Megapascal

Formula

`"q"_{"rate"} = 2.253*"A"*(("ΔT"_{"x"})^(3.96))`

Example

`"279.495W"=2.253*"5m²"*(("2.25°C")^(3.96))`

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Heat Flux in Fully Developed Boiling State for Pressure upto 0.7 Megapascal Solution

STEP 0: Pre-Calculation Summary

Formula Used

Rate of Heat Transfer = 2.253*Area*((Excess Temperature)^(3.96))
q_rate = 2.253*A*((ΔT_x)^(3.96))
This formula uses 3 Variables

Variables Used

Rate of Heat Transfer - (Measured in Joule per Second) - Rate of Heat Transfer is defined as the amount of heat transferred per unit time in the material.
Area - (Measured in Square Meter) - The area is the amount of two-dimensional space taken up by an object.
Excess Temperature - (Measured in Kelvin) - Excess Temperature is defined as the temperature difference between heat source and saturation temperature of the fluid.

STEP 1: Convert Input(s) to Base Unit

Area: 5 Square Meter --> 5 Square Meter No Conversion Required
Excess Temperature: 2.25 Degree Celsius --> 2.25 Kelvin (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

q_rate = 2.253*A*((ΔT_x)^(3.96)) --> 2.253*5*((2.25)^(3.96))

Evaluating ... ...

q_rate = 279.494951578441

STEP 3: Convert Result to Output's Unit

279.494951578441 Joule per Second -->279.494951578441 Watt (Check conversion here)

FINAL ANSWER

279.494951578441 ≈ 279.495 Watt <-- Rate of Heat Transfer

(Calculation completed in 00.004 seconds)

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Home » Engineering » Chemical Engineering » Heat Transfer » Boiling and Condensation » Important Formulas of Condensation Number, Average Heat Transfer Coefficient and Heat Flux » Heat Flux in Fully Developed Boiling State for Pressure upto 0.7 Megapascal

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Created by Ayush gupta

University School of Chemical Technology-USCT (GGSIPU), New Delhi

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National Institute of Technology (NIT), Meghalaya

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< 16 Important Formulas of Condensation Number, Average Heat Transfer Coefficient and Heat Flux 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)

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))

Critical Heat Flux by Zuber

Go Critical Heat Flux = ((0.149*Enthalpy of Vaporization of Liquid*Density of Vapor)* (((Surface Tension*[g])*(Density of Liquid-Density of Vapor))/ (Density of Vapor^2))^(1/4))

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

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)

Correlation for Heat Flux proposed by Mostinski

Go Heat Transfer Coefficient For Nucleate Boiling = 0.00341*(Critical Pressure^2.3)*(Excess Temperature in Nucleate Boiling^2.33)*(Reduced Pressure^0.566)

Heat Flux in Fully Developed Boiling State for Higher Pressures

Go Rate of Heat Transfer = 283.2*Area*((Excess Temperature)^(3))*((Pressure)^(4/3))

Heat Flux in Fully Developed Boiling State for Pressure upto 0.7 Megapascal

Go Rate of Heat Transfer = 2.253*Area*((Excess Temperature)^(3.96))

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))

< 14 Boiling Calculators

Radius of Vapour Bubble in Mechanical Equilibrium in Superheated Liquid

Go Radius of Vapor Bubble = (2*Surface Tension*[R]*(Saturation Temperature^2))/(Pressure of Superheated Liquid*Enthalpy of Vaporization of Liquid*(Temperature of Superheated Liquid-Saturation Temperature))

Critical Heat Flux by Zuber

Go Critical Heat Flux = ((0.149*Enthalpy of Vaporization of Liquid*Density of Vapor)* (((Surface Tension*[g])*(Density of Liquid-Density of Vapor))/ (Density of Vapor^2))^(1/4))

Radiation Heat Transfer Coefficient

Go Radiation Heat Transfer Coefficient = (([Stefan-BoltZ]*Emissivity*(((Plate Surface Temperature)^4)-((Saturation Temperature)^4)))/(Plate Surface Temperature-Saturation Temperature))

Total Heat Transfer Coefficient

Go Total Heat Transfer Coefficient = Heat Transfer Coefficient in Film Boiling Region* ((Heat Transfer Coefficient in Film Boiling Region/Heat Transfer Coefficient)^(1/3))+Radiation Heat Transfer Coefficient

Modified Heat of Vaporization

Go Modified Heat of Vaporization = (Latent Heat of Vaporization+(Specific Heat of Water Vapor)*((Plate Surface Temperature-Saturation Temperature)/2))

Modified Heat Transfer Coefficient under Influence of Pressure

Go Heat Transfer Coefficient at Some Pressure P = (Heat Transfer Coefficient at Atmospheric Pressure)*((System Pressure/Standard Atmospheric Pressure)^(0.4))

Correlation for Heat Flux proposed by Mostinski

Go Heat Transfer Coefficient For Nucleate Boiling = 0.00341*(Critical Pressure^2.3)*(Excess Temperature in Nucleate Boiling^2.33)*(Reduced Pressure^0.566)

Heat Transfer Coefficient for Forced Convection Local Boiling Inside Vertical Tubes

Go Heat Transfer Coefficient for Forced Convection = (2.54*((Excess Temperature)^3)*exp((System Pressure in Vertical Tubes)/1.551))

Heat Flux in Fully Developed Boiling State for Higher Pressures

Go Rate of Heat Transfer = 283.2*Area*((Excess Temperature)^(3))*((Pressure)^(4/3))

Heat Transfer Coefficient given Biot Number

Go Heat Transfer Coefficient = (Biot Number*Thermal Conductivity)/Thickness of Wall

Saturated Temperature given Excess Temperature

Go Saturation Temperature = Surface Temperature-Excess Temperature in Heat Transfer

Surface Temperature given Excess Temperature

Go Surface Temperature = Saturation Temperature+Excess Temperature in Heat Transfer

Excess Temperature in Boiling

Go Excess Temperature in Heat Transfer = Surface Temperature-Saturation Temperature

Heat Flux in Fully Developed Boiling State for Pressure upto 0.7 Megapascal

Go Rate of Heat Transfer = 2.253*Area*((Excess Temperature)^(3.96))

Heat Flux in Fully Developed Boiling State for Pressure upto 0.7 Megapascal Formula

Rate of Heat Transfer = 2.253*Area*((Excess Temperature)^(3.96))
q_rate = 2.253*A*((ΔT_x)^(3.96))

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 Heat Flux in Fully Developed Boiling State for Pressure upto 0.7 Megapascal?

Heat Flux in Fully Developed Boiling State for Pressure upto 0.7 Megapascal calculator uses Rate of Heat Transfer = 2.253*Area*((Excess Temperature)^(3.96)) to calculate the Rate of Heat Transfer, The Heat Flux in Fully Developed Boiling State for Pressure upto 0.7 Megapascal formula is a function of area and excess temperature. Pressure range valid for this correlation is from 0.2 to 0.7MPa. Rate of Heat Transfer is denoted by q_rate symbol.

How to calculate Heat Flux in Fully Developed Boiling State for Pressure upto 0.7 Megapascal using this online calculator? To use this online calculator for Heat Flux in Fully Developed Boiling State for Pressure upto 0.7 Megapascal, enter Area (A) & Excess Temperature (ΔT_x) and hit the calculate button. Here is how the Heat Flux in Fully Developed Boiling State for Pressure upto 0.7 Megapascal calculation can be explained with given input values -> 279.495 = 2.253*5*((2.25)^(3.96)).

FAQ

What is Heat Flux in Fully Developed Boiling State for Pressure upto 0.7 Megapascal?

The Heat Flux in Fully Developed Boiling State for Pressure upto 0.7 Megapascal formula is a function of area and excess temperature. Pressure range valid for this correlation is from 0.2 to 0.7MPa and is represented as q_rate = 2.253*A*((ΔT_x)^(3.96)) or Rate of Heat Transfer = 2.253*Area*((Excess Temperature)^(3.96)). The area is the amount of two-dimensional space taken up by an object & Excess Temperature is defined as the temperature difference between heat source and saturation temperature of the fluid.

How to calculate Heat Flux in Fully Developed Boiling State for Pressure upto 0.7 Megapascal?

The Heat Flux in Fully Developed Boiling State for Pressure upto 0.7 Megapascal formula is a function of area and excess temperature. Pressure range valid for this correlation is from 0.2 to 0.7MPa is calculated using Rate of Heat Transfer = 2.253*Area*((Excess Temperature)^(3.96)). To calculate Heat Flux in Fully Developed Boiling State for Pressure upto 0.7 Megapascal, you need Area (A) & Excess Temperature (ΔT_x). With our tool, you need to enter the respective value for Area & Excess Temperature 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 Rate of Heat Transfer?

In this formula, Rate of Heat Transfer uses Area & Excess Temperature. We can use 2 other way(s) to calculate the same, which is/are as follows -

Rate of Heat Transfer = 283.2*Area*((Excess Temperature)^(3))*((Pressure)^(4/3))
Rate of Heat Transfer = 283.2*Area*((Excess Temperature)^(3))*((Pressure)^(4/3))

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