ACR Journal

CMYK / .ai CMYK / .ai CMYK / .ai acrjournal.uk 39 REFRIGERATION The heat transfer fluid Greencold installed 6,000 litres of Friogel Neo heat transfer fluid supplied by Climalife into a system that cools Calcium Chloride Brine solutions, for immersion cooling food products in tanks, on its site in June 2011. Friogel Neo is a Monopropylene Glycol (MPG) with organic corrosion inhibitors, specially formulated by Climalife for long-lasting protection, and is commonly used on food production sites across Europe. When choosing a heat transfer fluid, Simon Andrew of Greencold said that the company looks for “a proven track record of reliability, cost and availability” and values the “broad knowledge and experience” of Climalife, which has strengthened their “long-established working relationship”. In conjunction with Climalife, Greencold has performed regular sampling and analysis of the fluid in the system at Rea Valley Foods throughout the period since first installation. This has been to ensure that no contamination or deteriorate can occur in any way, and that it continues to serve its intended purpose as a heat transfer fluid. Greencold Director Simon Andrew said: “The glycol has been trouble-free since its first initial charge eight years ago. We have samples regularly checked by Climalife as part of our PPM visits to the plant and they have always come back with a clean bill of health.” Now, eight years on from its first installation, a sample of the Friogel Neo was sent to Climalife UK’s Technical Service department for analysis straight from the system. The results were very positive and the glycol appeared to be identical to a new sample. Peter Dinnage, Technical Director at Climalife, reported: “Based on the sample provided, the product appears to be in good condition and shows no change to previous samples in 2017 or 2018. It will provide freezing protection to -19°C which is consistent with a 40% MonoPropylene glycol dilution.” Climalife says its high-grade heat transfer fluids are a cost-e¥ective refrigeration solution as a smaller amount of refrigerant is required to transfer a large amount of heat to outside the application very e§ciently. Simon Andrew said: “The samples always look tremendously good FRIOGEL NEO • Monopropylene Glycol • Concentrate and ready to use HTF • Long life organic inhibitors • Protection against metal corrosion • Excellent hard water stability • Working temp range -28°C to +150°C • Freezing point -32°C • For low temp refrigeration systems and food industry every time! No visible contamination or dilution. We are very pleased with the results. We take great care at the time of installation to ensure the system is clean to give longevity of the system.” Analysing the quality of heat transfer fluids that have been in a system over a period of time is recommended to maintain optimal performance. It is a service Climalife has provided for more than 20 years and is utilised by contractors to check on the e§ciency and longevity of the products in their applications. Peter Dinnage of Climalife UK Sample A is a new product sample; Sample B the fluid after eight years in the system Glycol pumps and tank on site Chiller, pumps and tank

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