Colburn-Chilton j factor

or

Colburn-Chilton j Factor Calculator

Colburn-Chilton j Factor Calculator

Calculator 1: Using Density and Velocity

Result:

Calculator 2: Using Mass Velocity

Result:

The Colburn-Chilton j-factor, often denoted as , is a dimensionless parameter used in heat transfer analysis to characterize the performance of a heat exchanger. It’s named after two researchers, L.M.K. Colburn and T.H. Chilton, who independently developed correlations for convective heat transfer coefficients in the mid-20th century.

Colburn-Chilton j factor is used in heat transfer in general and free and forced convection calculations in particular. It is equivalent to (St.Pr^2/3). It is normally defined in one of the following forms above

Where:

Cp

=

Heat capacity

G

=

Mass velocity

h

=

Heat transfer coefficient

k

=

Thermal Conductivity

mu

=

Viscosity

rho

=

Density

V

=

Velocity

 

The Colburn-Chilton j-factor is commonly used in the analysis and design of various heat exchangers, including shell-and-tube, plate, and finned tube heat exchangers. It helps engineers characterize the effectiveness of heat transfer in these systems and optimize their performance. Additionally, correlations based on the j-factor are available for different types of flow regimes and geometries, providing valuable insights for heat exchanger design and operation.

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