Page 38 - Climate Control News magazine March 2022

New Products
Hyperscale performance for high capacity cooling
Eco-friendly,
high temperature, CO2 heat pumps
ENGIE REFRIGERATION HAS delivered five thermeco2 high temperature heat pumps to the Osatina Group, one of the leading food producers in Croatia.
The machines, which run on the natural refrigerant CO2 and have a total capacity of five megawatts, will now provide heating for greenhouses.
Prior to this installation the food producer used gas-fired burners to heat five of its 10,000-square- metre greenhouses in the area around Osijek. But the Osatina Group decided to look for a more eco- friendly solution – and found that ENGIE Refrig- eration offered the best concept.
Five HHR 1000 type thermeco2 high-tempera- ture heat pumps with a total capacity of five megawatts are now operating on site.
They will provide the right temperature for a total area of 50,000 square metres – roughly the size of ten European football fields – growing mainly tomatoes, cucumbers and mushrooms.
Upon delivery of the machines, Jochen Hor- nung, CEO of ENGIE Refrigeration, said the heat pumps are an ecologically sustainable alterna- tive to fossil-fuelled burners.
“Our thermeco2 high-temperature heat pumps will promote decarbonisation and ad- vance sustainable food production at the Osati- na Group,” he said.
The project was completed by the ENGIE team in collaboration with the Zenteh consul- tancy from Slovenia.
The flow temperature is set at 85 degrees Celsius and the return temperature at 40 degrees Celsius.
From a technical perspective, this wide spread between chilled water (13/8 degrees Cel- sius and 12/6 degrees Celsius) and hot water can only be achieved in one stage by using CO2 as the refrigerant.
In comparison, two-stage solutions, for example those using NH3 as the refrigerant, are considera- bly less efficient – which ultimately persuaded the Osatina Group to choose ENGIE Refrigeration.
This is because thermeco2 high-temperature heat pumps utilise CO2 as a refrigerant.
Five CO2 heat pumps ready for delivery.
WITH CAPACITIES OF up to a huge 1MW, SmartCool ONE is a true representation of Aire- dale’s global ambitions.
The range will be manufactured in the UK, Spain and the US, standardised to match the needs of a global market and designed to deliver increased efficiencies, reduced operational costs and reduced energy consumption, whilst max- imising cooling kW per m2.
Elevating the design principles of Airedale’s ex- isting SmartCool range, SmartCool ONE has been re-developed from the ground-up, with cost, efficiency and the needs of colocation & hyper- scale facilities at the heart of the design process.
Design features include a deep chilled water coil that delivers a large surface area for maxi- mum cooling capacity, with low and high flow coil geometries to optimise pressure drop. Back-
ward curved 630mm EC fans ensure that, unlike other large capacity coolers, the coil capacity is matched with powerful air flow to deliver on that potential, with a modified fan plenum to im- prove operational efficiency.
Filtration options include both ISO-C-80 and ISO-C-90 (MERV 8 & 11 for 60Hz units) and are positioned on the coil face to minimise pressure drop. There is also an option to have zero filtra- tion, for increased fan efficiency and air volume.
Each SmartCool ONE unit is delivered with the in-built helix control system, with the new c.pCO controls platform and an intuitive touch screen user interface. Using a PID (Proportional Integral Derivative) controller to manage sup- ply/return air temperatures and regulate air flow, it also features an in-built ATS (automatic transfer switch) to ensure a prompt switchover in the event of a mains power supply crisis.
SmartCool ONE has the intelligence to oper- ate either as a standalone unit, a networked pre- cision cooling circuit or with chillers as a com- plete HVAC system.
With capacity from 35kw to 1MW, 104 down- flow models across 36 case sizes, left or right hand side pipework connections, multiple valve and filtration options and three power supplies (400V/50Hz, 460V/60Hz, 380V / 50Hz), Smart- Cool ONE offers the flexibility and efficiency to meet the demands of worldwide colocation and hyperscale data centres, looking to meet sus- tainability and performance targets.
Optimised for operation with lower approach temperatures and higher water-side Delta Ts, with return air temperature range 28°C to 45°C (82°F to 113°F).
ABOVE: Airedale’s SmartCool ONE.
TOP: SmartCool ONE is made for hyperscale data centres
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