Colburn Factor using Chilton Colburn Analogy Solution

STEP 0: Pre-Calculation Summary
Formula Used
Colburn's j-factor = Nusselt Number/((Reynolds Number)*(Prandtl Number)^(1/3))
jH = Nu/((Re)*(Pr)^(1/3))
This formula uses 4 Variables
Variables Used
Colburn's j-factor - Colburn's j-factor is a non-dimensional parameter that arises in convective heat transfer analysis.
Nusselt Number - The Nusselt number is the ratio of convective to conductive heat transfer at a boundary in a fluid. Convection includes both advection and diffusion.
Reynolds Number - Reynolds number is the ratio of inertial forces to viscous forces within a fluid which is subjected to relative internal movement due to different fluid velocities.
Prandtl Number - Prandtl number (Pr) or Prandtl group is a dimensionless number, named after the German physicist Ludwig Prandtl, defined as the ratio of momentum diffusivity to thermal diffusivity.
STEP 1: Convert Input(s) to Base Unit
Nusselt Number: 12.6 --> No Conversion Required
Reynolds Number: 3125 --> No Conversion Required
Prandtl Number: 0.7 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
jH = Nu/((Re)*(Pr)^(1/3)) --> 12.6/((3125)*(0.7)^(1/3))
Evaluating ... ...
jH = 0.00454103145394862
STEP 3: Convert Result to Output's Unit
0.00454103145394862 --> No Conversion Required
FINAL ANSWER
0.00454103145394862 0.004541 <-- Colburn's j-factor
(Calculation completed in 00.020 seconds)

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17 Basics of Heat Transfer Calculators

Log Mean Temperature Difference for Counter Current Flow
Go Log Mean Temperature Difference = ((Outlet Temperature of Hot Fluid-Inlet Temperature of Cold Fluid)-(Inlet Temperature of Hot Fluid-Outlet Temperature of Cold Fluid))/ln((Outlet Temperature of Hot Fluid-Inlet Temperature of Cold Fluid)/(Inlet Temperature of Hot Fluid-Outlet Temperature of Cold Fluid))
Log Mean Temperature Difference for CoCurrent Flow
Go Log Mean Temperature Difference = ((Outlet Temperature of Hot Fluid-Outlet Temperature of Cold Fluid)-(Inlet Temperature of Hot Fluid-Inlet Temperature of Cold Fluid))/ln((Outlet Temperature of Hot Fluid-Outlet Temperature of Cold Fluid)/(Inlet Temperature of Hot Fluid-Inlet Temperature of Cold Fluid))
Logarithmic Mean Area of Cylinder
Go Logarithmic Mean Area = (Outer Area of Cylinder-Inner Area of Cylinder)/ln(Outer Area of Cylinder/Inner Area of Cylinder)
Equivalent Diameter when Flow in Rectangular Duct
Go Equivalent Diameter = (4*Length of Rectangular Section*Breadth of Rectangle)/(2*(Length of Rectangular Section+Breadth of Rectangle))
Internal Diameter of Pipe given Heat Transfer Coefficient for Gas in Turbulent Motion
Go Internal Diameter of Pipe = ((16.6*Specific Heat Capacity*(Mass Velocity)^0.8)/(Heat Transfer Coefficient for Gas))^(1/0.2)
Heat Transfer from Stream of Gas flowing in Turbulent Motion
Go Heat Transfer Coefficient = (16.6*Specific Heat Capacity*(Mass Velocity)^0.8)/(Internal Diameter of Pipe^0.2)
Colburn Factor using Chilton Colburn Analogy
Go Colburn's j-factor = Nusselt Number/((Reynolds Number)*(Prandtl Number)^(1/3))
Heat Transfer Coefficient based on Temperature Difference
Go Heat Transfer Coefficient = Heat Transfer/Overall Temperature Difference
Equivalent Diameter of Non-Circular Duct
Go Equivalent Diameter = (4*Cross Sectional Area of Flow)/Wetted Perimeter
Heat Transfer Coefficient given Local Heat Transfer Resistance of Air Film
Go Heat Transfer Coefficient = 1/((Area)*Local Heat Transfer Resistance)
Local Heat Transfer Resistance of Air-Film
Go Local Heat Transfer Resistance = 1/(Heat Transfer Coefficient*Area)
Wetted Perimeter given Hydraulic Radius
Go Wetted Perimeter = Cross Sectional Area of Flow/Hydraulic Radius
Hydraulic Radius
Go Hydraulic Radius = Cross Sectional Area of Flow/Wetted Perimeter
Reynolds Number given Colburn Factor
Go Reynolds Number = (Colburn's j-factor/0.023)^((-1)/0.2)
J-Factor for Pipe Flow
Go Colburn's j-factor = 0.023*(Reynolds Number)^(-0.2)
Colburn J-Factor given Fanning Friction Factor
Go Colburn's j-factor = Fanning Friction Factor/2
Fanning Friction Factor given Colburn J-Factor
Go Fanning Friction Factor = 2*Colburn's j-factor

Colburn Factor using Chilton Colburn Analogy Formula

Colburn's j-factor = Nusselt Number/((Reynolds Number)*(Prandtl Number)^(1/3))
jH = Nu/((Re)*(Pr)^(1/3))

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 Colburn Factor using Chilton Colburn Analogy?

Colburn Factor using Chilton Colburn Analogy calculator uses Colburn's j-factor = Nusselt Number/((Reynolds Number)*(Prandtl Number)^(1/3)) to calculate the Colburn's j-factor, The Colburn Factor Using Chilton Colburn Analogy formula is also called Modified Reynolds Analogy. Validity of this analogy depends upon property of fluid and length of plate. Colburn's j-factor is denoted by jH symbol.

How to calculate Colburn Factor using Chilton Colburn Analogy using this online calculator? To use this online calculator for Colburn Factor using Chilton Colburn Analogy, enter Nusselt Number (Nu), Reynolds Number (Re) & Prandtl Number (Pr) and hit the calculate button. Here is how the Colburn Factor using Chilton Colburn Analogy calculation can be explained with given input values -> 0.002523 = 12.6/((3125)*(0.7)^(1/3)).

FAQ

What is Colburn Factor using Chilton Colburn Analogy?
The Colburn Factor Using Chilton Colburn Analogy formula is also called Modified Reynolds Analogy. Validity of this analogy depends upon property of fluid and length of plate and is represented as jH = Nu/((Re)*(Pr)^(1/3)) or Colburn's j-factor = Nusselt Number/((Reynolds Number)*(Prandtl Number)^(1/3)). The Nusselt number is the ratio of convective to conductive heat transfer at a boundary in a fluid. Convection includes both advection and diffusion, Reynolds number is the ratio of inertial forces to viscous forces within a fluid which is subjected to relative internal movement due to different fluid velocities & Prandtl number (Pr) or Prandtl group is a dimensionless number, named after the German physicist Ludwig Prandtl, defined as the ratio of momentum diffusivity to thermal diffusivity.
How to calculate Colburn Factor using Chilton Colburn Analogy?
The Colburn Factor Using Chilton Colburn Analogy formula is also called Modified Reynolds Analogy. Validity of this analogy depends upon property of fluid and length of plate is calculated using Colburn's j-factor = Nusselt Number/((Reynolds Number)*(Prandtl Number)^(1/3)). To calculate Colburn Factor using Chilton Colburn Analogy, you need Nusselt Number (Nu), Reynolds Number (Re) & Prandtl Number (Pr). With our tool, you need to enter the respective value for Nusselt Number, Reynolds Number & Prandtl Number 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 Colburn's j-factor?
In this formula, Colburn's j-factor uses Nusselt Number, Reynolds Number & Prandtl Number. We can use 2 other way(s) to calculate the same, which is/are as follows -
  • Colburn's j-factor = Fanning Friction Factor/2
  • Colburn's j-factor = 0.023*(Reynolds Number)^(-0.2)
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