In heat transfer operation, the Colburn equation is normally applied to study the relation between energy...

 

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In heat transfer operation, the Colburn equation is normally applied to study the relation between energy transport and momentum. The Colburn equation is expressed as: 2/3 0.023 CG 0.2 DG where C heat capacity, Btu/lbm°F viscosity, Ibm/hr-ft thermal conductivity, Btu/ hr ft °F pipe diameter, ft G = mass velocity, lbm/hr ft? %3D k = %3D a) Assuming constant 0.023 to be dimensionless, determine the units of heat transfer coefficient, h. (3 marks) b) Modify the above equation into SI unit with the temperature expressed in °C. Then, determine the heat transfer coefficient, h. (10 marks) In heat transfer operation, the Colburn equation is normally applied to study the relation between energy transport and momentum. The Colburn equation is expressed as: 2/3 0.023 CG 0.2 DG where C heat capacity, Btu/lbm°F viscosity, Ibm/hr-ft thermal conductivity, Btu/ hr ft °F pipe diameter, ft G = mass velocity, lbm/hr ft? %3D k = %3D a) Assuming constant 0.023 to be dimensionless, determine the units of heat transfer coefficient, h. (3 marks) b) Modify the above equation into SI unit with the temperature expressed in °C. Then, determine the heat transfer coefficient, h. (10 marks)