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Heat Exchanger Fouling Factors

Fouling factors references for oil, gas and other process fluids (heat exchanger sizing)

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1. Data table of fouling resistances of some processing fluids

Please find below a table of fluids founds in process industries and the fouling resistance it is expected they can generate in heat exchangers.

  • Warning 1 : values were not verified individually
  • Warning 2 : The data below are thus only for a 1st reference, quick calculation, but no detail design, no guarantee are given upon them. The actual value in a particular exchanger may differ from the data tabulated as fouling depends on the actual properties of the fluid but also temperature, turbulence...
As different sources were aggregated, different values can appear for a same material. Please scroll down, the compounds are sorted alphabetically ; or use the Ctrl+F function to find what you are looking for.
Fouling factor : Oils

Fluid
Fouling resistance in h.ft2.F/Btu Fouling resistance in m2.K/W
Fuel Oil #2 Fouling factor of Fuel Oil #2 0.002 0.0003526
Fuel Oil #6 Fouling factor of Fuel Oil #6 0.005 0.0008815
Transformer Oil Fouling factor of Transformer Oil 0.001 0.0001763
Engine Lube Oil Fouling factor of Engine Lube Oil 0.001 0.0001763
Quench oil Fouling factor of Quench oil 0.004 0.0007052


Fouling factors : gases and vapors

Fluid
Fouling resistance in h.ft2.F/Btu Fouling resistance in m2.K/W
Acid gas Fouling factor of Acid gas 0.002 0.0003526
Ammonia vapor Fouling factor of Ammonia vapor 0.001 0.0001763
Chlorinated hydrocarbons vapors Fouling factor of Chlorinated hydrocarbons vapors 0.001 0.0001763
Chlorine Vapor  Fouling factor of Chlorine Vapor  0.002 0.0003526
CO2 vapor Fouling factor of CO2 vapor 0.001 0.0001763
Coal flue gas Fouling factor of Coal flue gas 0.01 0.001763
Compressed Air Fouling factor of Compressed Air 0.001 0.0001763
Engine exhaust gas Fouling factor of Engine exhaust gas 0.01 0.001763
Hydrogen Fouling factor of Hydrogen 0.0005 8.815E-05
Hydrogen (saturated with water) Fouling factor of Hydrogen (saturated with water) 0.002 0.0003526
Light Hydrocarbon vapors (clean) Fouling factor of Light Hydrocarbon vapors (clean) 0.001 0.0001763
Natural Gas Fouling factor of Natural Gas 0.001 0.0001763
Natural Gas Flue Gas Fouling factor of Natural Gas Flue Gas 0.005 0.0008815
Nitrogen Fouling factor of Nitrogen 0.0005 8.815E-05
Polymerizable vapors (with inhibitor) Fouling factor of Polymerizable vapors (with inhibitor) 0.003 - 0.03 0.0005289-0.005289
Refrigerant Vapors (oil bearing) Fouling factor of Refrigerant Vapors (oil bearing) 0.002 0.0003526
Solvent Vapor Fouling factor of Solvent Vapor 0.001 0.0001763
Stable Overhead Products Fouling factor of Stable Overhead Products 0.001 0.0001763
Steam (non-oil bearing) Fouling factor of Steam (non-oil bearing) 0.0005 8.815E-05
Steam (exhaust, oil bearing) Fouling factor of Steam (exhaust, oil bearing) 0.0015 0.00026445

 

Fouling factors : liquids

Fluid
Fouling resistance in h.ft2.F/Btu Fouling resistance in m2.K/W
Ammonia Liquid Fouling factor of Ammonia Liquid 0.001 0.0001763
Ammonia Liquid (oil bearing) Fouling factor of Ammonia Liquid (oil bearing) 0.003 0.0005289
Asphalt and residuum – Vacuum tower bottom Fouling factor of Asphalt and residuum – Vacuum tower bottom 0.01 0.001763
Asphalt and residuum – Atmospheric tower bottom Fouling factor of Asphalt and residuum – Atmospheric tower bottom 0.007 0.0012341
CO2 Liquid Fouling factor of CO2 Liquid 0.001 0.0001763
Calcium chloride solutions Fouling factor of Calcium chloride solutions 0.003 0.0005289
Chlorinated hydrocarbons liquid Fouling factor of Chlorinated hydrocarbons liquid 0.001 0.0001763
Chlorine Liquid Fouling factor of Chlorine Liquid 0.002 0.0003526
DEG & TEG Solutions Fouling factor of DEG & TEG Solutions 0.002 0.0003526
Ethanol solutions Fouling factor of Ethanol solutions 0.002 0.0003526
Ethylene Glycol Solutions Fouling factor of Ethylene Glycol Solutions 0.002 0.0003526
Gasoline Fouling factor of Gasoline 0.002 0.0003526
Heavy Fuel Oils Fouling factor of Heavy Fuel Oils 0.006 0.0010578
Heavy Gas Oil Fouling factor of Heavy Gas Oil 0.004 0.0007052
Hydraulic Fluid Fouling factor of Hydraulic Fluid 0.001 0.0001763
Kerosene Fouling factor of Kerosene 0.0025 0.00044075
Light Gas Oil Fouling factor of Light Gas Oil 0.0025 0.00044075
Light hydrocarbon liquid (clean) Fouling factor of Light hydrocarbon liquid (clean) 0.001 0.0001763
Methanol solutions Fouling factor of Methanol solutions 0.002 0.0003526
MEA & DEA Solutions Fouling factor of MEA & DEA Solutions 0.002 0.0003526
Molten heat transfer salts Fouling factor of Molten heat transfer salts 0.0005 8.815E-05
Naphtha and Light Distillates Fouling factor of Naphtha and Light Distillates 0.0025 0.00044075
Organic Heat Transfer Liquids Fouling factor of Organic Heat Transfer Liquids 0.002 0.0003526
Refrigerant Liquids Fouling factor of Refrigerant Liquids 0.001 0.0001763
Sodium chloride solutions Fouling factor of Sodium chloride solutions 0.003 0.0005289