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

Watercolor workshops at historical society
— In conjunction with its summer arts exhibit, Sparta Historical Society presents its community program with guest curator and local...
Read more »
Image

Billy Hector to perform in Sparta
— On Friday night July 20 the Sparta Summer Concert Series keeps chugging along with The Billy Hector Blues Band. Billy himself has...
Read more »
Image

Sparta High School honor rolls
Principal's Scholar Honor Roll
Grade 9
Amineh Al-Aydi, Budoor Al-Aydi, Vincent Apostolico, Jenna Bargfrede, Ula Bitinaitis, Jenna Blandina, Elizabeth Botta, Kristen...

Read more »

Sparta police blotter
Road rage results in warrant arrest
On July 6 at approximately 11:45 pm, P.O. Erick Finley observed two vehicles racing north on Rt. 15. He was able to stop one of the...

Read more »
Image

VIDEOS



Subscribe to our mailing list

* indicates required
Community Newspapers


MOST COMMENTED



Find more about Weather in Sparta, NJ