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

Vincent M. Walker of Dingmans Ferry, Pa., dies at age 75
incent M. Walker of Dingmans Ferry, Pa., died on Friday, Oct. 6, 2017, at home. He was 75.
Son of the late Vincent and Kathleen Walker, he was born Nov. 27, 1941, in Astoria,...
Frances Crane of Middletown, N.Y., dies at age 98
Frances Crane of Middletown, N.Y., known affectionately as “Dolly” to her friends and family, passed away peacefully on Oct. 15, 2017, at Campbell Hall Healthcare...
Peter P. Cooper of Dingmans Ferry, Pa., dies at age 61
Peter P. Cooper of Dingmans Ferry, Pa., died Wednesday, Oct. 4, 2017, at Hospice of the Sacred Heart. He was 61.
He served his country during the Vietnam War in the U.S. Army.
Charles Edward 'Chick' McCollum of Milford, Pa., dies at age 83
Charles Edward “Chick” McCollum of Milford, Pa., died on Saturday, Oct. 14, 2017, at Moses Taylor Hospital, Scranton, Pa. He was 83.
Son of the late Ralph and...

VIDEOS



Sign up to get our newsletter emailed to you every week!

  • Enter your email address in the box below.
  • Select the newsletters you would like to subscribe to.
  • Click the 'SUBSCRIBE' button.



MOST COMMENTED



Weather in Milford, PA