ACR Journal

CMYK / .ai CMYK / .ai CMYK / .ai 07 NEWS Raising the Standards in Air Conditioning Distribution SPONSORED BY FUJITSU UPGRADE FOR LEADINGMANUFACTURER Fujitsu has helped to deliver a significant air conditioning upgrade for a major manufacturing facility in Derbyshire. As part of plans to reduce the organisation’s operational emissions to net zero by 2030, the customer required a solution which would replace fossil fuel energy sources, and at the same time increase cooling capacity, for a series of air handling units that serve a manufacturing cell. The system provides climate control to an area where temperature critical manufacturing takes place, producing precision mechanical components. The machinery is cooled by process chilled water circuits. The existing AHU system heated the air passing through with a series of steam heat exchangers linked to natural gas boilers. The cooling element was provided by 160kW of DX, split over four stages of cooling, but with ine cient direct online compressors and operating on R407C refrigerant. A modular set-up of four V-III Heat pump VRF units (930mm w x 765mm d), each with 56kW cooling and 63kW heating capacity, was used for the first AHU. Three standalone J-IVS Heat Pump Mini VRF units (930mm x 370mm), each with 14kW heating and cooling capacity, were used for the second AHU. Refurbishment of the existing third party AHUs resulted in four stages of cooling/ heating for the first, with each stage designed to provide 50kW capacity in either mode. The second AHU has three stages of cooling/ heating, with each stage providing 12kW. It is possible to have the AHU up to 165 metres away from the condenser with 50m elevation for the V-III, while the J-IVS condenser can be up to 50m from the AHU with 30m elevation. In both instances, electronic expansion valves (EEV) and EEV control kits provide control to each heat exchanger within the AHU. The kits, available to serve individual heat exchangers from 5-50kW, are capable of operating in heating mode with supply air of -7 o C without supplementary heating. The system was designed and delivered as part of a turnkey solution by Modern Project Services (UK) and the equipment supplied by CDL. Fujitsu VRF V-III compact condensers serving the first AHU IOR launches newpodcast channel The Institute of Refrigeration (IOR) has launched a new podcast channel, The Tip of the Iceberg, to explore with industry leaders some of the critical issues facing the refrigeration, air conditioning and heat pump sector in the UK. It will contain news, views and insights from the business and engineering experts driving innovation and change in our sector. IOR CEO Miriam Rodway said: “The IOR network provides access to so many interesting people and ideas. I’m looking forward to having some in-depth discussions on some challenging topics.” The first episode was recorded live at the ASHRAE Winter Meeting in Las Vegas this February. The IOR talked with Professor Graeme Maidment and new IOR Trustee Catarina Marques at the largest gathering of refrigeration, air conditioning, heat pump experts in the world. Graeme and Cat shared what it's like to be back at international events, what they learned there about motivation and collaboration, and why international problems like reducing the carbon impact of buildings, improving diversity, and addressing covid safety, will need international solutions and new ways of working. Future episodes of the podcast will cover topics including Net Zero Supermarkets, Reinventing Refrigeration for the Heat Pump Market and the Changing Role of the Engineer. The IOR wants to hear what other topics and people members would like featured and asks them to listen, like, share and comment on the podcast website.

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