The -factor of Chilton and Colburn for flow in tubes

The /-factor of Chilton and Colburn for flow in tubes Heat transfer 

Because the mechanisms governing mass transfer are similar to those involved in both heat transfer by conduction and convection and in momentum transfer (fluid flow), quantitative relations exist between the three processes, and these are discussed in Chapter 12. There is generally more published information available on heat transfer than on mass transfer, and these relationships often therefore provide a useful means of estimating mass transfer coefficients. 

Results of experimental studies of heat transfer may be conveniently represented by means of the j- factor method developed by COLBURN4341 and by CHILTON arid COLBURN 35 for representing data on heat transfer between a turbulent fluid and the wall of a pipe. From equation 9.64  

The left-hand side of equation 10.224 is referred to as the y-factor for heat transfer ( //,). Chilton and Colburn found that a plot of against Re gave approximately the same curve as the friction chart (0 versus Re) for turbulent flow of a fluid in a pipe. 

The right-hand side of equation 10.224 gives numerical values which are very close to those obtained from the Blasius equation for the friction factor (j for the turbulent flow of a fluid through a smooth pipe at Reynolds numbers up to about 106. 

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