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Example calculation

Heat transfer coefficient in pipes

by turbulent pipe flow in smooth pipes

This calculation is only a simplified estimation, and does not replace a detailed design calculation.

Input data

  Pipe inside diameter   mm
  Pipe length   mm
  Mass flow   kg/s
  Temperature   °C
  Pressure   bar(a)


  Reynolds number    
  Prandtl number    
  Nusselt number    

Heat transfer coefficients

  in an infinitely long pipe   W/(m²·K)
  at the pipe inlet   W/(m²·K)
  at the pipe outlet   W/(m²·K)
  mean pipe value   W/(m²·K)
© Lau Engineering Solutions GmbH