Commercial heating
www.heatingandventilating.net
Energy-efficient solution for ‘world’s largest vertical farm’
Air-cooled scroll chillers operating on lower global warming potential (GWP) refrigerant R-32 are providing high-efficiency cooling and heating for the world’s largest vertical farm in Lydney in the Forest of Dean district in Gloucestershire, operated by Jones Food Company
T
he vertical farm, the size of 70 tennis courts, offers 148,000 square feet of growing space for stacking crops 15 layers high, and is
expected to supply 1,000 tonnes of fresh produce a year to UK supermarkets. Contractor Brooktherm Refrigeration was
tasked with providing an HVAC solution capable of delivering a constant supply of efficient heating and cooling to the pressurised warehouse. It was essential that the chillers specified were compatible with Brooktherm’s control system. “One of the key challenges was the requirement to achieve four different temperature and humidity set points,” said Ben Doherty, projects coordinator, Brooktherm Refrigeration. “With the support of Carrier, we achieved them all.” Carrier recommended its flexible and compact
AquaSnap 30RBP air-cooled scroll chillers with refrigerant R-32, which operate from -0oC up to +48oC, and come with Greenspeed intelligence variable-speed pumps to reduce pumping energy consumption by up to two-thirds. The innovative solutions support Carrier’s ESG goal of helping customers avoid more than 1 gigaton of GHG emissions by 2030. The chillers have a heat recovery system that enables waste heat to be captured and used for various heating applications on site, saving energy while maintaining optimum growing conditions. The cultivation warehouse is served by two HVAC plants, one on the north side and one on the south side,
“This exciting project is an efficient and environmentally responsible way to produce food and we were delighted to be part of such a pioneering, sustainable new approach to growing the nation’s food,” – Paul Hill, regional sales manager, Carrier UK.
Above: The Lydney site offers 148,000ft2 of growing space for stacking crops 15 layers high.
each equipped with two chillers, delivering a total of 2.2 megawatts of cooling and heating to the growing room. “This exciting project is an efficient and
environmentally responsible way to produce food and we were delighted to be part of such a
pioneering, sustainable new approach to growing the nation’s food,” said Paul Hill, regional sales manager, Carrier UK. “The HVAC plant was fully commissioned in summer of 2023, and by October the entire growing area was fully planted, allowing the operator to harvest a tonne in weight of basil and leafy greens every 19 days.” “With our new facility, we further accelerate Britain’s position as a world-leader when it comes to vertical farming,” said James Lloyd-Jones, chief executive, Jones Food Company. “We already supply thousands of British retail
stores with basil grown in our first facility in Lincolnshire, but our Lydney site is three times bigger and will allow us to supply a greater range to more stores.”
Above: Four Carrier AquaSnap 30RBP chillers were installed delivering a total of 2.2 megawatts of cooling to the growing room
14 March 2024
Above: Carrier’s AquaSnap 30RBP air-cooled scroll chiller operating on lower global warming potential (GWP) refrigerant R-32
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