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Fouling Factor

This document lists fouling resistance values for various process fluids including oils, gases and vapors, liquids, and water. Fouling resistance is measured in units of square feet-degrees Fahrenheit-hours per Btu and indicates the resistance to heat transfer caused by fouling for each fluid. Lower values indicate less fouling resistance and better heat transfer. The document provides fouling resistance values for over 50 different fluids across the different categories.

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Jesaya Valentino
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202 views2 pages

Fouling Factor

This document lists fouling resistance values for various process fluids including oils, gases and vapors, liquids, and water. Fouling resistance is measured in units of square feet-degrees Fahrenheit-hours per Btu and indicates the resistance to heat transfer caused by fouling for each fluid. Lower values indicate less fouling resistance and better heat transfer. The document provides fouling resistance values for over 50 different fluids across the different categories.

Uploaded by

Jesaya Valentino
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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Process Fluids Fouling Resistance

(ft2-°F-hr/BTU)
Oils
Fuel Oil #2 0.002
Fuel Oil #6 0.005
Transformer Oil 0.001
Engine Lube Oil 0.001

Gases and Vapors


Acid gas 0.002 - 0.003
Ammonia vapor 0.001
Chlorinated hydrocarbons vapors 0.001 - 0.0015
Chlorine Vapor 0.002
CO2 vapor 0.001
Compressed Air 0.001
Hydrogen 0.0005
Hydrogen (saturated with water) 0.002
Light Hydrocarbon vapors (clean) 0.001
Natural Gas 0.001 - 0.002
Natural Gas Flue Gas 0.005
Nitrogen 0.0005
Polymerizable vapors (with inhibitor) 0.003 - 0.03
Refrigerant Vapors (oil bearing) 0.002
Solvent Vapor 0.001
Stable Overhead Products 0.001
Steam (non-oil bearing) 0.0005
Steam (exhaust, oil bearing) 0.0015 - 0.002

Liquids
Ammonia Liquid 0.001
Ammonia Liquid (oil bearing) 0.003
CO2 Liquid 0.001
Chlorinated hydrocarbons liquid 0.001 - 0.002
Chlorine Liquid 0.002
DEG & TEG Solutions 0.002
Ethylene Glycol Solutions 0.002
Gasoline 0.002
Heavy Fuel Oils 0.005 - 0.007
Heavy Gas Oil 0.003 - 0.005
Hydraulic Fluid 0.001
Kerosene 0.002 - 0.003
Light Gas Oil 0.002 - 0.003
Light hydrocarbon liquid (clean) 0.001
MEA & DEA Solutions 0.002
Naphtha and Light Distillates 0.002 - 0.003
Organic Heat Transfer Liquids 0.002
Refrigerant Liquids 0.001

Water Fouling Resistance Fouling Resistance


(ft2-°F-hr/BTU) (ft2-°F-hr/BTU)
water temperature 125°F or less over 125°F
water velocity 3 ft/s or less over 3 ft/s 3 ft/s or less over 3 ft/s

Boiler Blowdown Water 0.002 0.002 0.002 0.002


Brackish Water 0.002 0.001 0.003 0.002
Condensate 0.0005 0.0005 0.0005 0.0005
Cooling Tower Water (treated) 0.001 0.001 0.002 0.002
Cooling Tower Water (untreated) 0.003 0.003 0.005 0.004
City or Well Water 0.001 0.001 0.002 0.002
River Water (minimum) 0.002 0.001 0.003 0.002
River Water (average) 0.003 0.002 0.004 0.003
River Water (muddy or silty) 0.003 0.002 0.004 0.003
Sea Water 0.0005 0.0005 0.001 0.001
Treated Boiler Feed Water 0.001 0.0005 0.001 0.001

http://www.hcheattransfer.com/fouling_factors2.html

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