Technology

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Reduce Protein and Mineral Fouling and Increase Heat Transfer Co-efficient by 10-20%

Anti-Fouling Heat Exchanger Solutions with the University of Melbourne have developed a novel anti-fouling coating. Aimed at the dairy industry, it is effective with both type A (protein) and type B (mineral) deposits found at temperatures both below and above 110° C. tech_page_in1

The anti-fouling coating process uses two different water-based food-grade biopolymers- starch and casein. The process runs the aqueous solution through the pipes and fixtures. The coating is cured by heating the exchange surfaces thereby building a smooth hard layer on the surface.

The layer is exceptionally thin– less than 50nm thick. So it does not diminish normal flow through the pipes. The anti-fouling coating is effective on metal, metal alloy, ceramic, glass, graphite, composite material, concrete or polymer.

It can quickly and easily be applied to the fluid-contact surfaces of dairy processing equipment or other existing heat exchangers. The technology “fills in the cracks” and microscopic defects in the material surfaces.

The coating film produces a smoother surface and maintains it over time. Unlike other coating that may delaminate or flake off and contaminate the foods, this process is thin and robust. After 10 months of consistent use, it showed no signs of wear.

Furthermore, equipment treated with Anti-Fouling Heat Exchanger Solution’s process was easier and faster to clean than those that were untreated.

Savings Adds Up

Fouling increases thermal resistance to heat transfer and energy costs. Especially in the food industry, it also raises sanitation concerns. Fouling can account for up to 80% of the total operating cost due to chemicals, time, and lost production.

Isn’t it worth considering the savings when you:
• Increase production capacity by up to 16%
• Increase the heat transfer co-efficient by 10-20%
• Increase production run-times
• Reduce energy consumption and costs by up to 18%
• Reduce cost of cleaning chemical by up to 80%
• Reduce cleaning time and labor by up to 80%

Doesn’t it make sense to look into an anti-fouling technology that is:
Food grade – safe for all food, water and beverage processing, as well as other applications
Environmentally friendly
Durable – lasting more than a year
Easy to apply to new or retrofit in existing equipment

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