Introduction Page

Non Chemical Descaling and Debottlenecking Systems

Specialising in Large Industrial Fluid Process Systems

Copyright PS Australian Promotions P/L 2003

Cooling Tower and Condenser /Chiller Systems

The major problems in these water systems are:-

• scale

• sludge

• bio-film/slime

• legionella and

• algae.

Typical scale, sludge & biofilm/slime fouling

In a chemically treatedBuilding Air-Conditioning System

Non-Chemical Control of Scale, Sludge and Bio-film/Slime

Scale-X Magnetic Fluid Conditioners can control and eliminate scale, sludge and bio-film/slime deposition in water process systems.

Typical treatable scales include the following:-Calcite (calcium carbonate)Gypsum (calcium sulphate)Magnesite (magnesium carbonate)Dolomite (calcium/magnesium carbonate)

Typical Building Air-Conditioning SystemTypical Building Air-Conditioning System

Scale-X MFCs eliminate scale, sludge & biofilm/slime fouling

An Example of a Chronic Scale Problem Eliminated by An Example of a Chronic Scale Problem Eliminated by

Scale-X MFCsScale-X MFCs South China Sea Offshore Platform

Block Valve ReducerWithout and With Scale-X MFC’s

Before After

South China Sea Offshore PlatformControl Valve and Non-Return Valve without and with Scale-X MFC’sControl Valve and Non-Return Valve without and with Scale-X MFC’sThe scale was predominately calcite with some dolomite and barite.The scale was predominately calcite with some dolomite and barite.

Before After

Untreated Water

Treated Water

Magnetic Conditioning of Water Magnetic Conditioning of Water Changes Crystal Size & Changes Crystal Size &

NucleationNucleationIEEE Transactions on Magnetics, Vol Mag-21, No 5, Sept 1985

Dr. Klaus L Kronenberg, California State Polytechnic University

The smaller crystals have a tendency against adhesion to the surface of pipes and vessels as scale

Reduction in Surface Tension

Existing Scale Removed

Existing Scale Becomes Soft

After treatment the scale becomes soft and the liquid velocity must be fast enough to scour away the softened scale.

Pipe Insert Type MFC

Installation of a Pipe Insert Type MFC in a carbon steel pipe of a single pass cooling system. Does not require cutting or flanging of pipes. Note the wooden guides used during installation.

External Bolt On Type MFCsFor use only on non-magnetic type pipes.

Typical cooling tower efficiency Scale-X MFCs vs Chemical

treatment

Biofilm increases energy usage up to 4 times faster

than calcium carbonate

Some deposits are more insulating than others and thus have a greater impact on the head pressure and energy requirements. For example, calcium carbonate scale deposits transfer heat up to 4 times better than biofilm deposits (slime). As a result, slime increases head pressure and energy requirements and will shut down a chiller much faster than “normal” scale.

HVAC Energy ConservationThrough Cooling Water Treatment

By: A. BhatiaContinuing Education and Development, Inc.

Stony Point, NY 10980 USA

Scale thickness and increase in energy usage

Biofilm/slime can cause an increase in energy usage of up to 4 times that of calcium carbonate for the same thickness of buildup.

Biofilm reduces efficiency and

accelerates corrosion

Biofilms also plug water passages and piping, help to accelerate corrosion, and reduce heat exchanger efficiency.

Cooling Water ManagementBasic Principles and Technology

By: Timothy Keister, CWTFellow, American Institute of Chemists

Certified Water TechnologistProChemTech International, Inc.

Controlling Bacteria

Bacteria feed on the bio-film and scale in fluid systems.

By reducing and eliminating scale and bio-film, bacteria can be reduced and eliminated.

Scale-X Magnetic Fluid Conditioners can control and eliminate bio-film and scale when correctly applied.

Control of Algae, Bacteria and Legionella

Scale, sludge and corrosion in the fluid systems provide the nutrients for bacteria, fungus and algae to live. Legionella lives on a bacteria in the water which derives its nutrients from the scale and sludge in the water. Magnetic fluid treatment prevents scale from forming, cleans away existing scale and the water becomes cleaner.

Thus Scale-X MFC’s reduce and/or remove the food chain (nutrients) on which the harmful bacteria lives.

This can result in a significant reduction and/or elimination of the bacteria and algae problem.

Cooling TowersCooling Towers

MFC Control of Algae, Bacteria and Legionella in

29 Cooling Tower Systems

A survey of 29 cooling towers using magnetic fluid conditioners and not using biocides and scale inhibitors showed no towers were a health risk and Legionella

had been controlled in all towers.

Results of MFCs Treating Cooling Towers Systems

Maintenance Australia - Jan 1990 Dr David Lloyd

MFCs Applied to Warm Water Systems

An example of treating a scaled (dirty) system.

Warm Water SystemsWarm Water SystemsAn example of treating a scaled (dirty) system.

Note:- Magnetic Technology recommends that the system be cleaned before the Scale-X MFCs are installed so that bacteria and algae elimination are not delayed by the removal of existing scale.

Laboratory Test Resultsfor Legionella Control

Maintenance Australia - Jan 1990 Dr David Lloyd

Introduction Page

Non Chemical Descaling and Debottlenecking Systems

Specialising in Large Industrial Fluid Process Systems

Copyright PS Australian Promotions P/L 2003

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