ACR Journal

With over 20 years’ experience, Hydratech - the UK’s leading formulator of hybrid glycols and specialist heat transfer fluids, has used their unrivalled technical knowledge of flow characteristics, thermodynamics and cooling systems to design and manufacture innovative fluid solutions. Coolflow DTX: 10 years of proven success Coolflow DTX was introduced in 2010 as a high performance non-toxic secondary refrigerant, suitable for replacing Propylene Glycol in food and cold storage cooling systems. Performance wise, DTX has very similar heat transfer and pumping characteristics to Ethylene Glycol and subsequently benefits from numerous operating advantages such as low viscosity, low dose rates and smaller systems and plant footprints onsite. Proven to reduce energy costs by >10% (as verified by Star Technical Services), Coolflow DTX will maintain suitable e†ciencies for low temperature systems previously not possible with Propylene Glycols - while improving fluid reliability and system longevity. From initial concept, design, tender or retrofit, DTX represents huge potential for RAC companies and cold store operators, owners, and colocation services. Design stage CapEx savings Customers such as Ocado, Lidl, DHL and Warburtons Bakeries have designed their refrigeration systems with DTX in mind, allowing them make savings in hardware and capital expenditure. Where Coolflow DTX is specified at the design stage, savings can be achieved through downsizing of: ° Primary gas compressors ° Heat exchangers ° Circulation pumps & motors ° Pipework diameter and length Cost reductions for existing systems Customers have reported i mproved performance and e†cienc y gains, alongside considerable energy/cost/CO 2 savings after retrofitting existing systems - moving from PG to DTX. Arla Foods has seen a 17% reduction in energy consumed by the main coolant circulation pumps and process cooling systems after moving to Coolflow DTX. For more information on the Coolflow range visit www.hydratech.co.uk For specialist technical advice and factory direct pricing call 01792 586800 or email: info@hydratech.co.uk Secondary refrigerants are usually liquids and are used to transfer heat from the substance being cooled to a heat exchanger where the heat is absorbed by a primary refrigerant. Secondary refrigerants are used in many pplica ions for example; Large refrigeration plants often use secondary refrigerants to transport the cooling capacity from the plant room to the point of use. With over 20 years’ experience, Hydratech has used their unrivalled t chnical knowledge of flow characteristics, thermodynamics and cooling systems to design and formulate innovative fluid solutions. Coolflow DTX was introduced in 2010 as a high performance non-toxic secondary refrigerant, suitable for replacing PG in food and beverage cooling systems. Performance wise it has very similar heat transfer and pumping characteristics to Ethylene Glycol and ubs quently benefits from numerous operating advantages The list of Coolflow DTX adopters is now extensive and includes a host of well-known companies from the br wing industry, including Mitie, Integral, Sainsbury’s, Airbus, Siemens, EON and SSE. So, the next time you’re looking for a specialist cooling solution, with the added advantage of a Fluid Monitoring Service be sure to talk with the experts first. www.hydratech.co.uk info@hydratech.co.uk t. +44 (0)1792 586800 Secondary refrigerants are also referred to as “heat transfer fluids”. The condition and performance of secondary refrigerants is necessary for quality refrigeration plant operations. Coolflow secondary refrigerants and food safe glycols are proven to increase productivity, reduce maintenance and lower operating costs. Chilling, Freezing & S condary Refrigerants ADVERTORIAL 37 CMYK / .ai CMYK / .ai CMYK / .ai acrjournal.uk There has also been a noticeable reduction in running time and load on their primary refrigerant compressors, which they believe will considerably prolong the life span of their system. Core cost reductions for existing systems are achi ved by: ° Increasing speed of heat transfer and production process ° Improving Coe†cients of Performance ° Minimising compressor loading and running hours ° Reducing pumping energy consumed Adopters and partners The list of Coolflow DTX adopters is now extensive and includes a host of well- known companies from the food and beverage sectors including, Hovis, DairyGold, Morrisons, Diageo, Thatchers Cider, Molson Coors, BrewDog, Eli Lilly and Co-op. DTX based coolants are also used in a variety of industrial and commercial ectors, where non-toxicity and low environmental impact are high priorities. End users and contractors from these sectors include, Honeywell Aerospace, Aggreko (Temperature Control Division), Daiken, BMW, Siemens, Mercedes, J&E Hall, Star Refrigeration, GE Aviation and AMEC. Inhibitor protection To prevent internal corrosion, scaling and biological fouling, all fluids in the Coolflow range are formulated with multi-metal and multi-function inhibitors (which exceed ASTM & BS corrosion standards). A cost saving alternative as raw costs soar Seasonal demand always plays a part with commodities (PG or EG) at this time of year. However, due to buyers eager to secure materials pre/post-Brexit and major production limitations, PG prices have increased over 50% since October 2020. Soaring costs can also be attributed to low stocks of MPG in the supply chain. The cost saving benefits of dosing a new or existing (retrofit) system with DTX are particularly favourable in the current economic climate. For example - given the current rates - a potential saving of over 60% could be made if DTX replaced PG in a proposed 20,000 Litre system (protected to -15°C).