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

Veterinarians warn of deadly dangers for pets this summer
Veterinarians are cautioning pet owners of dangers associated with rising temperatures during the summer months.
When temperatures rise, experts from VERG urge pet owners to...

Read more »
Image

Senior quarterback Nick Reilly signs with Kings College
Delaware Valley senior quarterback Nick Reilly has signed with Kings College-Division III. Nick was a Lackawanna League Division I All-Star. He plans on majoring in business and...
Read more »
Image

Land trust board gathers at annual celebration, awards local for protection work
Pocono Heritage Land Trust has honored Edward Cramer with the “This Land is Your Land” Award.
More than 50...

Read more »
Image

Study: Many women with early stage breast cancer do not need chemo
A new study is redefining treatment decisions decisions for many women with early-stage breast cancer.
Groundbreaking research showed no benefit from chemotherapy for 70...

Read more »
Image

VIDEOS



Subscribe to our mailing list

* indicates required
Community Newspapers


MOST COMMENTED



Weather in Milford, PA