CASE STUDIES
Energy-effi cient cooling and heating for world’s largest
vertical farm Carrier AquaSnap30RBP air-cooled scroll chillers operating on lower global warming potential (GWP) refrigerant R-32 are providing high-effi ciency cooling and heating for the world’s largest vertical farm in Lydney located in the Forest of Dean district in Gloucestershire, operated by Jones Food Company.
The Lydney site off ers 148,000sq ft of growing space for stacking crops 15 layers high
T
he vertical farm, the size of seventy tennis courts, off ers 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 effi cient heating and cooling to the pressurised warehouse. It was essential that the chillers specifi ed were compatible with Brooktherm’s control system. “One of the key challenges was the requirement to achieve
four diff erent temperature and humidity set points,” said Ben Doherty, Projects Coordinator, Brooktherm Refrigeration Ltd. “With the support of Carrier, we achieved them all.” Carrier recommended its fl exible and compact AquaSnap 30RBP air-cooled scroll chillers with refrigerant R-32, which operate from -0o
C up to +48o C, 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 Carrier chillers have a heat recovery system that enables waste heat to be captured and used for various
Carrier’s AquaSnap 30RBP air-cooled scroll chiller operating on lower global warming potential (GWP) refrigerant R-32
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, each equipped with two Carrier chillers, delivering a total of 2.2 megawatts of cooling and heating to the growing room. “This exciting project is an effi cient and environmentally-
responsible way to produce food and Carrier was 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 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
Four chillers were installed delivering a total of 2.2 megawatts of cooling
32 March 2024 •
www.acr-news.com
position as a world-leader when it comes to vertical farming,” said James Lloyd-Jones, Chief Executive Offi cer, Jones Food Company. “We already supply thousands of British retail stores with basil grown in our fi rst facility in Lincolnshire, but our Lydney site is three times bigger and will allow us to supply a greater range to more stores.”
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"This exciting project is an effi cient and environ- mentally- responsible way to produce food and Carrier was delighted to be part of such a pioneering, sustainable new
approach to growing the nation’s food."
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