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

Image The 2017 Eclipse Across America is this Monday
What you need to know about the Great American EclipseOn Monday, August 21, all of North America will be treated to an eclipse of the Sun,...
Image Orange County groups rally against hate and bigotry
Groups in Orange County, N.Y., are organizing rallies and vigils in the wake of the tragedy in Charlottesville, Va., where white nationalists gathered on Saturday for a...
Image 'Awakening Voices' invites expression, poetical or political
By Anya Tikka
— Who needs an agent? If you want to perform, an audience is waiting — without the bookings hassle...
Image Pike's Peek
Where have you seen this detail? If you think you know, visit chroniclenewspaper.com and click on the Fun & Games tab at the top of the page.

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



Click on the ad above to print your coupon!
Weather in Milford, PA