Fired Heater Learning Center

Convection Overall Heat Transfer Coefficient Calculator

Convection Heat Transfer Calculator
Mechanical Data
Tube Layout: Ext'd Surface Type: Tube Id, in:
Tube Od, in: No. Of Tube Rows: Tubes Wide:
Tube Length, ft: Transverse Pitch, in: Longitudinal Pitch, in:
Fin Density, fins/in: Fin Height/Stud Lgth, in: Fin Thick/Stud Dia, in:
Studs Per Plane: Planes Per Foot:
Tube Side Process Data
Inlet Fluid Temp, F: Outlet Fluid Temp, F: Flow Direction:
Tube Cond, Btu/hr-ft: Fluid Inside hi, Btu/hr-ft2-F: Inside Fouling, hr-ft2-F/Btu:
Gas Side Process Data
Inlet Gas Temp, F: Outlet Gas Temp, F: Gas Flow, lb/hr:
Fouling, hr-ft2-F/Btu: Ext'd Surf. Cond., Btu/hr-ft: Viscosity, Cp:
Cond, Btu/hr-ft-F: Specific Heat, Btu/lb-F: mole %:CO2 H2O
Assuming counter-current flow
Calculation Results
Area, ft2: Uo, Btu/hr-ft2-F: Heat Transferred, Btu/hr:


The formulas and correlations presented herein are all in the public domain and are to be used only as a learning tool. Note that any product, process, or technology in this document may be the subject of other intellectual property rights reserved by sponsors or contributors to this site. This publication is provided as is, without any warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of fitness for a particular purpose, or non-infringement.

The formulas, correlations, and methods presented herein should not be considered as being recommended by or used by the sponsors of this site. The purpose of this site is educational and the methods may or may not be suitable for actual design of equipment. Only a fired heater design engineer is qualified to decide if a calculation or procedure is correct for an application.