Ultrasonic, acoustic and optical techniques for the non-invasive detection of fouling in food processing equipment

  • Withers P
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The build-up of fouling in the heat exchangers and pipework of ultrahigh-temperature (UHT) processing plants, particularly those used for milk and milk products, can lead to a reduction in both efficiency and product quality. Regular cleaning-in-place schedules can be uneconomical in terms of down-time and materials. The use of sensing techniques in other industries has already demonstrated that it is feasible to monitor the build-up of fouling on-line, thus enabling the optimum point at which to begin cleaning to be determined.

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  • Peter M. Withers

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