Water Expert Andy Ball: Scaling and Fouling


Make text smaller Make text larger



Photos



  • Andy Ball



What is meant by scaling or fouling?


Fouling refers to the accumulation of unwanted material on solid surfaces, most often in an aquatic environment. The fouling material can consists of either living organisms (biofouling) or be a non-living substance (inorganic or organic). Other terms used in the literature to describe fouling include: deposit formation, encrustation, scaling, scale formation, crudding, and deposition. The last four terms are less inclusive than fouling; therefore, they should be used with caution. Components subject to fouling

The following lists examples of components that may be subject of fouling and the direct effects of fouling:

heat exchanger surfaces – reduces thermal efficiency, increases temperature, creates corrosion, increases use of cooling water piping, flow channels – reduces flow, increases pressure drop, increases energy expenditure, may create flow oscillations ship hulls – increases fuel usage, reduces maximum speed turbines – reduces efficiency, increases probability of failure solar panels – decreases the electrical power generated reverse osmosis membranes – reduces efficiency of water purification, increases pressure drop, increases energy expenditure electrical heating elements – increases temperature of the element, increases corrosion, reduces lifespan nuclear fuel in pressurized water reactors – axial offset anomaly injection/spray nozzles (e.g., a nozzle spraying a fuel into a furnace) – incorrect amount injected, malformed jet, component inefficiency, component failure venturi tubes, orifice plates – inaccurate or incorrect measurement of flow rate pitot tubes in airplanes – inaccurate or incorrect indication of airplane speed teeth – promotes tooth disease, decreases aesthetics

Andy Ball
862-354-7698




Make text smaller Make text larger

Comments

Pool Rules



MUST READ NEWS

Fetterman starts marijuana hearings in central Pennsylvania
Lt. Gov. John Fetterman's statewide marijuana listening tour started in central Pennsylvania as he aims to take Pennsylvania's pulse on whether to legalize the drug.
Read more »
Image

Meet your new Congressman, Matt Cartwright, in Milford on Tuesday evening
— U.S. Rep. Matt Cartwright will host a town hall meeting in Milford from 6:30 to 7:30 p.m. on Tuesday, Feb. 19, at American Legion...
Read more »
Image

Ex-congressman Marino now cites health for resigning
Recently resigned U.S. Rep Tom Marino now says problems with his remaining kidney prompted him to leave Congress just three weeks after starting his fifth term.
The...

Read more »
Image

Girls killed in factory explosion remembered 130 years later
By Steve Mocarsky
— Margaret Bau was shivering as she remembered stories about her...

Read more »
Image

VIDEOS



Subscribe to our mailing list

* indicates required
Community Newspapers



MOST COMMENTED



Weather in Milford, PA