ACR Journal

NEWS 10 August | September 2021 Volume 7 No.5 AERMEC TBA CLAIMS GLYCOL FIRST Aermec says it has achieved an industry first with the air- cooled Turbocor TBA chiller, which confines glycol to the chiller and o ers significant energy and cost benefits. Featuring an integrated glycol loop, the units range from 400kW - 1.8MW with the option of more customised solutions. Features include low electrical consumption, using a high e ciency Turbocor compressor and unique evaporator design, combined with high e ciency, low noise EC condenser fans capable of delivering the right amount of air at significantly reduced input power. The TBA can also be supplied with on-board, inverter driven pumps, giving the installer plug and play capabilities, reducing install time and simplifying site installation. A fast re-start of 180- 210 seconds (power maintained to the controller) means that space conditions can be brought back to design within a few minutes. Using R134a, R1234ze or R513a (XP10) a low GWP refrigerant, which is classified within the A1 safety group (ASHRAE 34-1997 standard), Aermec says the TBA design features ensure refrigerant quantities are kept to a minimum with one of the lowest refrigerant charges on the market. Free cooling for buildings where elevated water temperatures can be used opens up the opportunity to turn o compressors and use the integrated dry cooler system, which often means the introduction of glycol. Glycol reduces heat transfer when added to a system, leading to over-sized equipment, reduced e ciency and higher maintenance in addition to the environmental consideration of large amounts of glycol in the building. Limiting the glycol to within the chiller reduces this impact and is said to result in a more e cient system. BITZER academy chief’s guide to refrigeration The director of BITZER’s Schaufler Academy, Volker Stamer, has published a guide to the Fundamentals of Refrigeration (Grundlagen der Kältetechnik). The bilingual manual contains basic information in German and English for people entering the industry, and can also serve as a reference for experienced technicians. The 220-page guide aims to give readers an overview of the key aspects of refrigeration and fill in partial knowledge gaps. It covers areas from the fundamentals of thermodynamics and the components of a refrigerating circuit, through to commissioning and troubleshooting refrigeration systems. The work draws on the knowledge of numerous experts, including Rainer Burger, Professor Johannes Reichelt and Michael Stalter of TWK, and BITZER’s Hermann Renz and Dr Heinz Jürgensen. Stamer said: ‘The work makes an important contribution to raising the significance of our sector. To the individual, refrigeration and air conditioning mostly operate unnoticed in the background, although every single one of us comes into contact with them – often without realising it. These days, you need cooling for everything. This work will help anyone who is interested learn more about the fascinating world of refrigeration, be they a beginner or more advanced.’ The book is available in hardback for €29.80 and as an e-book for €29.99. For pupils and students, the hardback edition is available for as little as €19.80 – when placing the order, corresponding documentation of student/pupil status must be uploaded. https://trainings-events.bitzer. de/Handbook ICS Cool Energy targets flexible future ICS Cool Energy has launched a flexible exchange programme which it believes can transform how manufacturers meet their process cooling and heating needs. The FLEX Membership aims to give manufacturers access to the latest equipment with the flexibility of an operating expense. Customers are able to transform their process temperature control system from a fixed asset into a dynamic solution that will stay up to date with changing business needs. The programme packages equipment, preventive and 24/7 emergency maintenance, replacements and upgrades. Dave Palmer, general manager for UK and Ireland at ICS Cool Energy, said: “We believe the FLEX Membership subscription business model will be a game changer in how manufacturers approach their process cooling and heating needs. With FLEX Membership, our customers get bespoke systems installed in their processes – with no upfront cost and capital investment. They only pay for the temperature control they need and when they need it.’’

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